CN209137582U - A kind of novel infusion needleless joint - Google Patents
A kind of novel infusion needleless joint Download PDFInfo
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- CN209137582U CN209137582U CN201821395732.5U CN201821395732U CN209137582U CN 209137582 U CN209137582 U CN 209137582U CN 201821395732 U CN201821395732 U CN 201821395732U CN 209137582 U CN209137582 U CN 209137582U
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- sleeve
- pedestal
- groove
- shell
- novel infusion
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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.The utility model pneumatically, 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 utility model 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.
Utility model content
In view of the above technical problems, the purpose of the utility model is to provide a kind of novel infusion needleless joints.
The technical solution of the utility model specifically:
A kind of novel infusion needleless joint, including pedestal, pedestal include hollow sleeve I, are arranged with shell outside pedestal, outside
The top of shell is equipped with connector, and pedestal and shell form cavity after being nested together, and elastic cork, I lower section of sleeve are equipped in cavity
Equipped with female Luer, central passage is equipped at female Luer center, I outer wall of sleeve of pedestal is equipped with groove, groove and center
Channel 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, the technical effect of the utility model is,
1, the utility model pneumatically generates elastic force, while the flexible generation elastic force of round hollow thin slice of compression end,
The pop-up of aux. pressure end, 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 utility model has spiral female Luer, is connected firmly, not easily to fall off.
4, the flowing being infused in the utility model is that the side groove of pedestal is leaned on to be formed, and infusion part is flowed into from through-hole.Ditch
The advantages of slot, 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 the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram of the section structure of Fig. 1.
Fig. 3 is the structural schematic diagram of the utility model pedestal.
Fig. 4 is the schematic diagram of the section structure of the utility model shell.
Fig. 5 is the structural schematic diagram of the utility model elasticity cork.
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 utility model is:
Pedestal 1, shell 2 and elastic cork 3 are combined, the cooperation of silica gel and pedestal, matching part utilizes silica gel
With the interference fit of pedestal, silica gel compressive deformation achievees the effect that sealing, and the female Luer 11 of pedestal 1 is replaced on remaining needle
Calparine cap after be connected on remaining needle, connector 20 and the female Luer on infusion device of shell 2 are threaded togather,
In connection procedure, the female Luer on infusion device can squeeze the pressure end 32 protruded into connector 20, so that compression end
31 are in compressive state, and in this case, seal head 33 is pushed into sleeve I 10, occurs between I 10 nozzle of seal head 33 and sleeve
Gap, when infusion, for medical fluid after flowing out in infusion device, medical fluid can be along the cross recess 34 and square groove 25 at 32 top of pressure end
It flows into 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
Behind portion, medical fluid is flowed into central passage 13 by the through-hole 15 through two grooves 12, after the outflow of central passage 13, medical fluid
Entered into the human body by remaining needle.
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.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model.
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 |
|---|---|---|---|
| CN201821395732.5U CN209137582U (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 |
|---|---|---|---|
| CN201821395732.5U CN209137582U (en) | 2018-08-28 | 2018-08-28 | A kind of novel infusion needleless joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209137582U true CN209137582U (en) | 2019-07-23 |
Family
ID=67266790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821395732.5U Active CN209137582U (en) | 2018-08-28 | 2018-08-28 | A kind of novel infusion needleless joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209137582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109010990A (en) * | 2018-08-28 | 2018-12-18 | 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 CN201821395732.5U patent/CN209137582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109010990A (en) * | 2018-08-28 | 2018-12-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of novel infusion needleless joint |
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