CN202961379U - Needleless connector structure - Google Patents
Needleless connector structure Download PDFInfo
- Publication number
- CN202961379U CN202961379U CN 201220653273 CN201220653273U CN202961379U CN 202961379 U CN202961379 U CN 202961379U CN 201220653273 CN201220653273 CN 201220653273 CN 201220653273 U CN201220653273 U CN 201220653273U CN 202961379 U CN202961379 U CN 202961379U
- Authority
- CN
- China
- Prior art keywords
- needle
- ring
- joint design
- chock
- stop part
- 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
- 239000007788 liquid Substances 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 230000000994 depressogenic effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 16
- 239000007924 injection Substances 0.000 description 16
- 238000007789 sealing Methods 0.000 description 10
- 238000005192 partition Methods 0.000 description 7
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000001467 acupuncture Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004347 surface barrier Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a pin-free joint structure, which comprises a hollow joint, a spring and a switch component, wherein a first channel and a second channel which are communicated are arranged at the two ends of the hollow joint; the spring is accommodated in the first channel; the switch component is provided with a stop piece and is connected with a conduit from the stop piece, the stop piece is clamped between the ring block and the spring, the conduit penetrates through the second channel, a first ring portion abutting against the first ring wall and a second ring portion abutting against the second ring wall are formed on the outer periphery of the stop piece, and a groove for communicating the conduit is formed between the first ring portion and the second ring portion of the stop piece. The utility model discloses no pin joint structure can improve overall structure's stability to reach good closed effect, make the unable entering joint of external air design in the structure completely.
Description
Technical field
This utility model relates to a kind of medical apparatus for blood transfusion or loading liquid, espespecially a kind of needle-free joint design.
Background technology
Traditional Syringe injector is common medicament injection utensil, but syringe needle is a sharp keen structure, as medical personnel when using Syringe injector, may be because of carelessness by needle sting, if syringe needle totally can not cause infection.Syringe needle can not arbitrarily abandon, and must professionally recycle, and the chance that is infected to reduce medical personnel and environment increases the safety on using, but relatively also increases the medical treatment cost burden.Therefore, the needle-free joint design occurs on the market to coordinate the needle-free injection device to come the injection medicament, this kind utensil danger is low, can reuse, and also can avoid a large amount of sky high costs that cause that reclaim.
Above-mentioned needle-free joint design, the Needleless luer access connector that provides as United States Patent (USP) notification number 7713250, it comprises a hollow shell and a partition, be provided with a passage in hollow shell, before partition is arranged in hollow shell and is blocked in passage, to be used for seal channel, this partition is mollielast and offers a slit in the centre.Like this, the needle-free injection device can insert in partition via slit, makes the partition distortion and open channel, and the liquid in the needle-free injection device can enter in patient body via the needle-free joint design.
Yet, the structure of the Needleless luer access connector that United States Patent (USP) notification number 7713250 provides is also unstable, be described in detail as follows, its partition is by the folding of slit, with the switch of control channel, therefore under life-time service, if partition produces the problem of elastic fatigue, the infull situation of driving fit will occur in slit, causes the DeGrain that seals; When injection is complete when drawing back syringe, can cause blood and medicament with in negative pressure mode adverse current tieback header structure, and may overflow from slit, cause medical personnel or environmental infection.
The utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of needle-free joint design, when it utilizes external force to eliminate, spring can promote stop part and automatically recover, and block passage by the first ring portion and the second ring portion, improve integrally-built degree of stability, and reach good sealing effect, outside air can't be entered in joint design fully.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of needle-free joint design, it comprises: a hollow joint, two ends have a first passage and a second channel of connection, this first passage periphery extended internally one the ring piece, this ring piece inner peripheral forms one first ring wall, and this first passage forms one second ring wall between this ring piece and this second channel; One spring is contained in this first passage; An and switch module, have a stop part and be connected with a conduit from this stop part, this stop part is pressed from both sides sincere between this ring piece and this spring, this conduit is arranged in this second channel, the outer peripheral edges of this stop part are formed with one first ring portion of this first ring wall of butt and one second ring portion of this second ring wall of butt, and this stop part is provided with a groove that is communicated with this conduit between this first ring portion and this second ring portion.
As preferred version, the perimeter dimensions of this first ring wall is less than the perimeter dimensions of this second ring wall.
As preferred version, this stop part comprises two O shape rings of a chock and sheathed this chock periphery, and this chock is extended with this conduit and forms this first ring portion and this second ring portion with respect to this O shape ring, and this chock is provided with this groove.
As preferred version, this chock has a shoulder and reaches from this shoulder towards being extended with a head away from this duct direction, the perimeter dimensions of this shoulder is greater than the perimeter dimensions of this head, this head periphery is provided with one first annular groove, this shoulder periphery is provided with one second annular groove, and this O shape ring is positioned respectively this first annular groove and this second annular groove.
As preferred version, this chock forms one at the end away from this conduit and enters liquid level, and this enters the liquid level periphery and has an ora terminalis, and this ora terminalis is provided with at least one diversion gap.
As preferred version, this hollow joint comprises one first ducted body and one second ducted body of mutual winding, form this first passage in this first ducted body, this second ducted body extends a dividing plate from inner peripheral and reaches from this dividing plate towards extending a hollow pipe away from this first ducted body direction, interior this second channel that forms of this hollow pipe.
As preferred version, this first ducted body offers an external screw thread away from the end of this second ducted body, forms a depressed area in this second ducted body between relative this dividing plate and this hollow pipe, and the outer peripheral edges of this depressed area offer a female thread.
As preferred version, an end of this spring is connected to this chock.
As preferred version, an end of this spring is connected to this dividing plate.
As preferred version, this spring is helical spring.
The technique effect that this utility model reaches is as follows:
One, can be because of the stressed spring that produces elastic fatigue, its function is only recovered automatically for promoting stop part, remove to block passage by the first ring portion on stop part and the second ring portion again, and then reach the function of sealing needle-free joint design, to avoid outside air to enter in joint, or the adverse current of the interior medicament of patient body and blood, therefore under life-time service, spring generation elastic fatigue, do not affect the sealing effect of stop part yet, make this utility model sealing needle-free joint design have structural stability and sealing ability capitally.
Two, the blood transfusion in medical treatment or loading process, must not use known syringe needle, but utilize needle-free injection device and needle-free joint design mutually to dock, and then avoid the acupuncture event, and save replacing and the recovery of syringe needle, and then reduce medical treatment cost.
Three, slide in the process of first passage at stop part, the second ring portion that the stop part outer peripheral edges form all is connected to the second ring wall, to avoid liquid to infiltrate other positions via the space between stop part and the second ring wall, liquid is positively flowed in groove, have good water conservancy diversion degree of stability to reach this utility model needle-free joint design.
Four, stop part comprises two O shape rings of chock and sheathed chock periphery, this chock is hard material, O shape ring is the materials such as rubber or silica gel, chock forms the first ring portion and the second ring portion with respect to two O shape rings, make this utility model can use the simple and convenient assembly of making, be assembled into easily constitutionally stable stop part, and then save the cost of manufacture of needle-free joint design.
Five, the surface of stop part contact injection head is formed into liquid level, enter the liquid level periphery and have ora terminalis, ora terminalis is provided with diversion gap, and then helps liquid to enter in first passage by diversion gap, to avoid liquid by the surface barrier of stop part, reach the problem that reduces liquid countercurrent.
Description of drawings
Fig. 1 is the three-dimensional exploded view of this utility model needle-free joint design;
Fig. 2 is another three-dimensional exploded view of this utility model needle-free joint design;
Fig. 3 is the combination schematic diagram of this utility model needle-free joint design;
Fig. 4 is the generalized section of this utility model needle-free joint design;
Fig. 5 is the user mode schematic diagram of this utility model needle-free joint design;
Fig. 6 is another user mode schematic diagram of this utility model needle-free joint design.
[primary clustering symbol description]
10 ... the needle-free joint design
1 ... hollow joint
11 ... first passage
111 ... the ring piece
112 ... the first ring wall
113 ... the second ring wall
12 ... second channel
13 ... the first ducted body
131 ... external screw thread
14 ... the second ducted body
141 ... dividing plate
142 ... hollow pipe
143 ... the depressed area
144 ... female thread
2 ... spring
3 ... switch module
31 ... stop part
311 ... the first ring portion
312 ... the second ring portion
313 ... groove
32 ... conduit
33 ... chock
331 ... shoulder
332 ... head
333 ... the first annular groove
334 ... the second annular groove
335 ... enter liquid level
336 ... ora terminalis
337 ... diversion gap
34 ... O shape ring
100 ... the needle-free injection device
101 ... injection head
200 ... liquid.
The specific embodiment
Please refer to Fig. 1 ~ shown in Figure 4, this utility model provides a kind of needle-free joint design, and needle-free joint design 10 mainly comprises a hollow joint 1, a spring 2 and a switch module 3.
Hollow joint 1 two ends have a first passage 11 and a second channel 12 of connection, first passage 11 peripheries extended internally one the ring piece 111, ring piece 111 inner peripherals form one first ring wall 112, and first passage 11 formation one second ring wall 113 between ring piece 111 and second channel 12, the perimeter dimensions of this first ring wall 112 is less than the perimeter dimensions of the second ring wall 113.
Be described in detail as follows, hollow joint 1 comprises one first ducted body 13 and one second ducted body 14 of mutual winding, the first interior formation first passage 11 of ducted body 13, the second ducted body 14 extends a dividing plate 141 from inner peripheral and reaches from dividing plate 141 towards extending hollow pipes 142, the interior formation second channel 12 of hollow pipe 142 away from the first ducted body 13 directions.
In addition, the first ducted body 13 offers formation one depressed area 143 between an interior relative dividing plate 141 of external screw thread 131, the second ducted bodies 14 and hollow pipe 142 away from the end of the second ducted body 14, and the outer peripheral edges of depressed area 143 offer a female thread 144.
Be described in detail as follows, stop part 31 comprises two O shapes rings 34 of a chock 33 and sheathed chock 33 peripheries, and this chock 33 is hard material, as plastics etc.O shape ring 34 is the materials such as rubber or silica gel.Chock 33 is extended with conduit 32 and relative two O shape rings 34 form the first ring portion 311 and the second ring portion 312, and chock 33 is provided with groove 313 again.
Wherein, chock 33 has a shoulder 331 and reaches from shoulder 331 towards being extended with a head 332 away from conduit 32 directions, the perimeter dimensions of shoulder 331 is greater than the perimeter dimensions of head 332, head 332 peripheries are provided with one first annular groove 333, shoulder 331 peripheries are provided with one second annular groove 334, two O shape rings 34 and are positioned respectively the first annular groove 333 and the second annular groove 334.
In addition, chock 33 forms one at the end away from conduit 32 and enters liquid level 335, enters liquid level 335 peripheries and has an ora terminalis 336, and ora terminalis 336 is provided with one or the diversion gap 337 of plural number.
Moreover an end of spring 2 is connected to chock 33, and the other end is connected to dividing plate 141, and spring 2 is contained in first passage 11, and gives the thrust that chock 33 approaches towards ring piece 111.
The combination of this utility model needle-free joint design 10, hollow joint 1 two ends have first passage 11 and the second channel 12 of connection, first passage 11 peripheries extended internally one the ring piece 111, ring piece 111 inner peripherals form one first ring wall 112, and first passage 11 forms the second ring wall 113 between ring piece 111 and second channel 12; Spring 2 is contained in first passage 11.Switch module 3 has a stop part 31 and is connected with conduit 32 from stop part 31, stop part 31 is sincere between ring piece 111 and spring 2 by folder, conduit 31 is arranged in second channel 12, the outer peripheral edges of stop part 31 are formed with the first ring portion 311, and second ring portion 312 of butt the second ring wall 113 of butt the first ring wall 112, and stop part 31 is provided with the groove 313 of connecting tube 32 between the first ring portion 311 and the second ring portion 312.Like this, can be because of the stressed spring 2 that produces elastic fatigue, its function is only recovered automatically for promoting stop part 31, remove to block passage by the first ring portion 311 on stop part 31 and the second ring portion 312 again, and then reach the function of sealing needle-free joint design 10, avoiding outside air to enter in joint, or the adverse current of medicament and blood in patient body.Therefore under life-time service, elastic fatigue occurs spring 2, does not also affect the sealing effect of stop part 31, make this utility model sealing needle-free joint design 10 have structural stability and sealing ability capitally.
please refer to Fig. 5 and shown in Figure 6, user mode for this utility model needle-free joint design, wherein, the injection head 101 of needle-free injection device 100 inserts from the first passage 11 of hollow joint 1, injection head 101 gives an application of force, so that spring 2 compactings are out of shape, stop part 31 is inwardly moved back, the first ring portion 311 is by the position that originally was positioned at the first ring wall 112 simultaneously, move to as being positioned at the position of the second ring wall 113, the perimeter dimensions of cause the first ring wall 112 is less than the perimeter dimensions of the second ring wall 113, cause the sealing ability of the first ring portion 311 to lose efficacy, the liquid 200 of needle-free injection device 100, can enter in first passage 11 via entering liquid level 335, again by groove 313 inflow catheters 32 and second channel 12, enter at last in patient body, for the patient body utilization.Like this, the blood transfusion in medical treatment or loading process must not used known syringe needle, but utilize needle-free injection device 100 and needle-free joint design 10 mutually to dock, and then avoid the acupuncture event, and save replacing and the recovery of syringe needle, and then reduce medical treatment cost.
In addition, slide in the process of first passage 11 at stop part 31, the second ring portion 312 that stop part 31 outer peripheral edges form all is connected to the second ring wall 113, to avoid liquid 200 to infiltrate other positions via the space between stop part 31 and the second ring wall 113, liquid 200 is positively flowed in groove 313, have good water conservancy diversion degree of stability to reach this utility model needle-free joint design 10.
Moreover, stop part 31 comprises two O shape rings 34 of chock 33 and sheathed chock 33 peripheries, this chock 33 is hard material, O shape ring 34 is the materials such as rubber or silica gel, the relative two O shape rings 34 of chock 33 form the first ring portion 311 and the second ring portion 312, this utility model can with the simple and convenient assembly of making, be assembled into constitutionally stable stop part 31, and then save the cost of manufacture of needle-free joint design 10 easily.
And for example, the surface of stop part 31 contact injection heads 101 is formed into liquid level 335, enter liquid level 335 peripheries and have ora terminalis 336, ora terminalis 336 is provided with diversion gap 337, and then help liquid 200 to enter in first passage 11 by diversion gap 337, to avoid liquid 200 by the surface barrier of stop part 31, reach the problem that reduces liquid 200 adverse currents.
The above is only preferred embodiment of the present utility model, is not be used to limiting protection domain of the present utility model.
Claims (10)
1. a needle-free joint design, is characterized in that, it comprises:
One hollow joint, two ends have a first passage and a second channel of connection, this first passage periphery ring piece that extended internally, and this ring piece inner peripheral forms one first ring wall, and this first passage forms one second ring wall between this ring piece and this second channel;
One spring is contained in this first passage; And
One switch module, have a stop part and be connected with a conduit from this stop part, this stop part is pressed from both sides sincere between this ring piece and this spring, this conduit is arranged in this second channel, the outer peripheral edges of this stop part are formed with one first ring portion of this first ring wall of butt and one second ring portion of this second ring wall of butt, and this stop part is provided with a groove that is communicated with this conduit between this first ring portion and this second ring portion.
2. needle-free joint design according to claim 1, is characterized in that, the perimeter dimensions of this first ring wall is less than the perimeter dimensions of this second ring wall.
3. needle-free joint design according to claim 1, it is characterized in that, this stop part comprises two O shape rings of a chock and sheathed this chock periphery, and this chock is extended with this conduit and forms this first ring portion and this second ring portion with respect to this O shape ring, and this chock is provided with this groove.
4. needle-free joint design according to claim 3, it is characterized in that, this chock has a shoulder and reaches from this shoulder towards being extended with a head away from this duct direction, the perimeter dimensions of this shoulder is greater than the perimeter dimensions of this head, this head periphery is provided with one first annular groove, this shoulder periphery is provided with one second annular groove, and this O shape ring is positioned respectively this first annular groove and this second annular groove.
5. needle-free joint design according to claim 3, is characterized in that, this chock forms one at the end away from this conduit and enters liquid level, and this enters the liquid level periphery and has an ora terminalis, and this ora terminalis is provided with at least one diversion gap.
6. needle-free joint design according to claim 1, it is characterized in that, this hollow joint comprises one first ducted body and one second ducted body of mutual winding, form this first passage in this first ducted body, this second ducted body extends a dividing plate from inner peripheral and reaches from this dividing plate towards extending a hollow pipe away from this first ducted body direction, interior this second channel that forms of this hollow pipe.
7. needle-free joint design according to claim 6, it is characterized in that, this first ducted body offers an external screw thread away from the end of this second ducted body, forms a depressed area in this second ducted body between relative this dividing plate and this hollow pipe, and the outer peripheral edges of this depressed area offer a female thread.
8. needle-free joint design according to claim 3, is characterized in that, an end of this spring is connected to this chock.
9. needle-free joint design according to claim 6, is characterized in that, an end of this spring is connected to this dividing plate.
10. needle-free joint design according to claim 1, is characterized in that, this spring is helical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220653273 CN202961379U (en) | 2012-12-03 | 2012-12-03 | Needleless connector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220653273 CN202961379U (en) | 2012-12-03 | 2012-12-03 | Needleless connector structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202961379U true CN202961379U (en) | 2013-06-05 |
Family
ID=48502517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220653273 Expired - Fee Related CN202961379U (en) | 2012-12-03 | 2012-12-03 | Needleless connector structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202961379U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112717270A (en) * | 2020-12-31 | 2021-04-30 | 深圳市迈威生物科技有限公司 | Drip-proof closed joint for repeated use |
-
2012
- 2012-12-03 CN CN 201220653273 patent/CN202961379U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112717270A (en) * | 2020-12-31 | 2021-04-30 | 深圳市迈威生物科技有限公司 | Drip-proof closed joint for repeated use |
| CN112717270B (en) * | 2020-12-31 | 2024-03-29 | 深圳市迈威生物科技有限公司 | Repeatedly used drip-proof sealing joint |
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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: 20130605 Termination date: 20201203 |