CN205948133U - Rotation type continuous positive airway pressure does not have adapter - Google Patents
Rotation type continuous positive airway pressure does not have adapter Download PDFInfo
- Publication number
- CN205948133U CN205948133U CN201620654951.5U CN201620654951U CN205948133U CN 205948133 U CN205948133 U CN 205948133U CN 201620654951 U CN201620654951 U CN 201620654951U CN 205948133 U CN205948133 U CN 205948133U
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing
- continuous positive
- positive pressure
- straight pipe
- 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
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an infusion equipment technical field especially relates to a rotation type continuous positive airway pressure does not have adapter. The utility model discloses a rotation type continuous positive airway pressure does not have adapter, including direct pipe and sealed piston, sealed piston slides and sets up the inside in direct pipe, still including being used for the reciprocal piston pushing body that promotes sealed piston, sealed piston is installed in the one end of the piston pushing body, and the face of cylinder of the piston pushing body is provided with the curve spout, and the inner wall of direct pipe is provided with with curve spout complex protrudingly, the middle part of the piston pushing body is provided with the infusion passageway. The utility model discloses a rotation type continuous positive airway pressure does not have adapter, when rotating piston promoted the body, the arch was slided along the curve spout to its axial displacement is followed to the promotion piston pushing body, thereby the piston removal is sealed in the drive, and direct one end of managing is provided with funnel part, and sealed piston head tightly when leading directly to the funnel part who manages, can make to block and lead directly to switching on of pipe, and the realization is sealed and is acted on, thus realization continuous positive airway pressure.
Description
Technical field
The present invention relates to fluid delivery apparatus technical field, more particularly, to a kind of rotary continuous positive pressure needleless joint.
Background technology
When patient needs continuous several times transfusion it will usually use remaining needle, typically adopt joint and the indwelling of syringe
Pin connects, but when infusion-completed pulls up the joint of syringe, because the effect of negative pressure can make blood be back in remaining needle, no
The blood of flowing easily solidifies, and blood coagulation can cause the blocking of remaining needle, and next time, transfusion just cannot be carried out again.
It is therefore desirable to providing a kind of continuous positive pressure needleless joint, blood can be avoided to flow back.
Content of the invention
Present invention aims to the deficiencies in the prior art provide a kind of rotary continuous positive pressure needleless joint, can shape
Become continuous positive pressure, it is to avoid blood flows back.
For achieving the above object, a kind of rotary continuous positive pressure needleless joint of the present invention, lives including straight pipe and sealing
Plug, sealing piston is slideably positioned in the inside of straight pipe；Also include promoting body, sealing for the piston of reciprocating sealing piston
Piston is installed on one end that piston promotes body, and piston promotes the face of cylinder of body to be provided with curve chute, the inwall setting of straight pipe
There is the projection with curve chute cooperation；Described piston promotes the middle part of body to be provided with infusion channel.
Preferably, also include assembly, described straight pipe is provided with window, assembly is arranged at window, projection is arranged at
Assembly.
Preferably, described assembly welds or glueds joint in window.
Preferably, also include the cap that is rotatably connected, the cap that is rotatably connected is articulated in one end of described straight pipe and is led with straight pipe
Logical.
Preferably, also include one-way sealing valve body, one-way sealing valve body is arranged in described infusion channel and is located at piston
Promote the other end of body.
Preferably, the outer wall of described sealing piston is arranged at intervals with the first sealing ring portion, the second sealing ring axially along
Portion, the external diameter in the first sealing ring portion is more than the external diameter in the second sealing ring portion.
Preferably, described sealing piston is cup-shaped, and sealing piston is socketed on one end that piston promotes body.
Preferably, the inwall of described sealing piston is provided with inner seal ring portion, and piston promotes one end of body to be provided with annular groove,
Inner seal ring portion is embedded in annular groove.
Preferably, described sealing piston is silica gel sealing piston, and the shore hardness of sealing piston is 48HA ~ 52 HA.
Preferably, the shore hardness of described sealing piston is 50HA.
Beneficial effects of the present invention：A kind of rotary continuous positive pressure needleless joint of the present invention, when rotating piston promotion body,
Projection is slided along curve chute, thus promoting piston to promote body to move along its axis, thus driving sealing piston to move, leads directly to
One end of pipe is provided with infundibulum, and sealing piston holds out against when the infundibulum of straight pipe, you can make the conducting of blocking-up straight pipe, real
Existing sealing function, thus realize continuous positive pressure, it is to avoid blood flows back.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the cross section structure diagram of the present invention.
Fig. 3 is that the piston of the present invention promotes body structural representation.
Fig. 4 is that the piston of the present invention promotes body longitudinal direction cross section structure diagram.
Fig. 5 is the projection of the present invention and the perspective view of assembly.
Fig. 6 is the cross section structure diagram of the sealing piston of the present invention.
Fig. 7 is the cross section structure diagram of the straight pipe of the present invention.
Reference includes：
1 straight pipe
11 raised 12 assembly 13 windows
2 sealing pistons
Inner seal ring portion of 21 first 22 second sealing ring portion of sealing ring portion 23
3 pistons promote body
31 curve chute, 32 infusion channel 33 annular groove
4 one-way sealing valve bodies 5 are rotatably connected cap
A cell wall and piston promote the angle between the axis of rotation of body.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Fig. 1 ~ 7, a kind of rotary continuous positive pressure needleless joint of the present invention, including straight pipe 1 and sealing piston
2, sealing piston 2 is slideably positioned in the inside of straight pipe 1；Also include promoting body 3 for the piston of reciprocating sealing piston 2,
Sealing piston 2 is installed on one end that piston promotes body 3, and piston promotes the face of cylinder of body 3 to be provided with curve chute 31, straight pipe 1
Inwall be provided with curve chute 31 cooperation projection 11；Described piston promotes the middle part of body 3 to be provided with infusion channel 32.Live
Plug promotes body 3 to be similar to cylindrical cam, and after completing transfusion, when rotating piston promotion body 3, raised 11 slide along curve chute 31,
Thus promoting piston to promote body 3 to move along its axis, thus driving sealing piston 2 mobile, one end of straight pipe 1 is provided with funnel
Portion, sealing piston 2 holds out against when the infundibulum of straight pipe 1, you can makes the conducting of blocking-up straight pipe 1, realizes sealing function, thus
Realize continuous positive pressure.
Specifically, the end of curve chute 31 can be provided with horizontal lock section, when raised 11 are located at horizontal lock section
When, the thrust that the blood pressure promoting body 3 axial direction along piston is formed cannot be pushed piston open and promote body 3, thus realizing lock function, keeps away
Exempt from blood pressure and push sealing piston 2 open, improve sealing effectiveness.
Specifically, as shown in figure 4, curve chute 31 is surrounded by bottom land and cell wall, the vertical profile structure promoting body 3 in piston is shown
In intention, cell wall and piston promote the angle a between the axis of rotation of body 3 to be 40 ° ~ 50 °, and specific a can be 45 °.This
Bright a kind of rotary continuous positive pressure needleless joint, raised 11 is smooth along sliding during curve chute 31 relative slip.
Preferably, also include assembly 12, described straight pipe 1 is provided with window 13, and assembly 12 is arranged at window 13, convex
Play 11 and be arranged at assembly 12.Specifically, described assembly 12 welds or glueds joint in window 13.It is internally provided with the straight of projection 11
Siphunculus 1 cannot withdrawing pattern, the projection 11 of the present invention is arranged at assembly 12, straight pipe 1 and assembly 12 molding respectively, welds after molding
Connect, reduce production cost.
As shown in fig. 7, window 13 can be semi-transparent window, the outer wall of straight pipe 1 is provided with the groove of accommodating assembly 12, recessed
The bottom land of groove is provided with the through hole for wearing raised 11.Assembly 12 is positioned over groove and then welds or glued joint, and is easy to assemble
Processing.
Preferably, also include the cap 5 that is rotatably connected, the cap 5 that is rotatably connected is articulated in one end and and the straight pipe of described straight pipe 1
1 conducting.The cap 5 that is rotatably connected of the present invention is easy to be connected with external infusion joint.
Preferably, also include one-way sealing valve body 4, one-way sealing valve body 4 is arranged in described infusion channel 32 and is located at
Piston promotes the other end of body 3.One-way sealing valve body 4 realizes unidirectional opening, when outside tube for transfusion is connected with one-way sealing valve body 4
When connecing, one-way sealing valve body 4 is opened, and when outside tube for transfusion is departed from one-way sealing valve body 4, one-way sealing valve body 4 closes,
The one-way sealing valve body 4 of the present invention realizes sealing function, plays the effect limiting liquid medicine flow direction again.
As shown in fig. 6, the outer wall of described sealing piston 2 is arranged at intervals with the first sealing ring portion 21, second axially along
Sealing ring portion 22, the external diameter in the first sealing ring portion 21 is more than the external diameter in the second sealing ring portion 22.During assembling, sealing piston 2 enters
After straight pipe 1, all there is elastic deformation in the first sealing ring portion 21 and the second sealing ring portion 22, the first sealing ring portion 21 and second is close
The inwall of straight pipe 1 is all close in seal portion 22, and meanwhile, sealing between the first sealing ring portion 21 and the second sealing ring portion 22 is formed
There is one section of air ring, air ring improves the sealing effectiveness of sealing piston 2.
Preferably, described sealing piston 2 is cup-shaped, and sealing piston 2 is socketed on one end that piston promotes body 3.The present invention's
Sealing piston 2, good sealing effect.
Preferably, the inwall of described sealing piston 2 is provided with inner seal ring portion 23, and piston promotes one end of body 3 to be provided with
Annular groove 33, inner seal ring portion 23 is embedded in annular groove 33.Inner seal ring portion 23 improves sealing piston 2 and piston promotes between body 3
Sealing effectiveness, it is to avoid medicinal liquid promotes from sealing piston 2 and piston and overflows between body 3.Simultaneously, it is to avoid air pressure from sealing piston 2 with
Piston promotes to be revealed between body 3, improves sealing effectiveness, beneficial to holding malleation.
Preferably, described sealing piston 2 is silica gel sealing piston, and the shore hardness of sealing piston 2 is 48HA ~ 52 HA.Tool
Body, the shore hardness of described sealing piston 2 is 50HA.The hardness of sealing piston 2 is the weight of impact sealing piston 2 sealing property
Want factor, the sealing piston 2 of present invention tight seal effect of fitting with the inwall of straight pipe 1 is good.
Understand that the present invention is to have above-described good characteristic in sum, made it on using, promote in the past
The efficiency that do not have in technology and there is practicality, become the product of a great practical value.
Above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention's
Thought, all will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Restriction.
Claims (10)
1. a kind of rotary continuous positive pressure needleless joint it is characterised in that：Including straight pipe（1）And sealing piston（2）, sealing work
Plug（2）It is slideably positioned in straight pipe（1）Inside；Also include for reciprocating sealing piston（2）Piston promote body（3）,
Sealing piston（2）It is installed on piston and promote body（3）One end, piston promote body（3）The face of cylinder be provided with curve chute（31）,
Straight pipe（1）Inwall be provided with and curve chute（31）The projection of cooperation（11）；Described piston promotes body（3）Middle part setting
There is infusion channel（32）.
2. a kind of rotary continuous positive pressure needleless joint according to claim 1 it is characterised in that：Also include assembly
（12）, described straight pipe（1）It is provided with window（13）, assembly（12）It is arranged at window（13）, raised（11）It is arranged at assembling
Body（12）.
3. a kind of rotary continuous positive pressure needleless joint according to claim 2 it is characterised in that：Described assembly（12）
Weld or glued joint in window（13）.
4. a kind of rotary continuous positive pressure needleless joint according to claim 1 it is characterised in that：Also include being rotatably connected
Cap（5）, be rotatably connected cap（5）It is articulated in described straight pipe（1）One end and and straight pipe（1）Conducting.
5. a kind of rotary continuous positive pressure needleless joint according to claim 1 it is characterised in that：Also include one-way sealing
Valve body（4）, one-way sealing valve body（4）It is arranged at described infusion channel（32）Interior and be located at piston promote body（3）The other end.
6. a kind of rotary continuous positive pressure needleless joint according to claim 1 it is characterised in that：Described sealing piston
（2）Outer wall be arranged at intervals with the first sealing ring portion axially along（21）, the second sealing ring portion（22）, the first sealing ring portion
（21）External diameter be more than the second sealing ring portion（22）External diameter.
7. a kind of rotary continuous positive pressure needleless joint according to claim 6 it is characterised in that：Described sealing piston
（2）Cup-shaped, sealing piston（2）It is socketed on piston and promote body（3）One end.
8. a kind of rotary continuous positive pressure needleless joint according to claim 7 it is characterised in that：Described sealing piston
（2）Inwall be provided with inner seal ring portion（23）, piston promotion body（3）One end be provided with annular groove（33）, inner seal ring portion
（23）It is embedded in annular groove（33）.
9. a kind of rotary continuous positive pressure needleless joint according to any one in claim 1 ~ 8 it is characterised in that：
Described sealing piston（2）For silica gel sealing piston, sealing piston（2）Shore hardness be 48HA ~ 52 HA.
10. a kind of rotary continuous positive pressure needleless joint according to claim 9 it is characterised in that：Described sealing piston
（2）Shore hardness be 50HA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654951.5U CN205948133U (en) | 2016-06-28 | 2016-06-28 | Rotation type continuous positive airway pressure does not have adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654951.5U CN205948133U (en) | 2016-06-28 | 2016-06-28 | Rotation type continuous positive airway pressure does not have adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205948133U true CN205948133U (en) | 2017-02-15 |
Family
ID=57969481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620654951.5U Expired - Fee Related CN205948133U (en) | 2016-06-28 | 2016-06-28 | Rotation type continuous positive airway pressure does not have adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205948133U (en) |
-
2016
- 2016-06-28 CN CN201620654951.5U patent/CN205948133U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11701509B2 (en) | Compressible cannula valve | |
| CN110215387B (en) | Improved lavage syringe | |
| CN106860003A (en) | A kind of dispenser | |
| CN205434529U (en) | Disposable needleless malleation connects | |
| CN111068169B (en) | Otolaryngology branch of academic or vocational study is with device of dosing | |
| CN105963824A (en) | Rotary type needle-free connector keeping positive pressure constantly | |
| CN205948133U (en) | Rotation type continuous positive airway pressure does not have adapter | |
| CN203647802U (en) | Negative-pressure suction injector | |
| CN205460177U (en) | Single tube two -chamber syringe pump | |
| CN203989224U (en) | Medical switch contacts | |
| CN204319281U (en) | A kind of site of puncture sinks easy fold | |
| CN206315333U (en) | A kind of rotary continuous positive pressure scalp adapter | |
| CN205013733U (en) | Pressure differential self sealss formula plug valve | |
| CN205867112U (en) | Transfusion bag | |
| CN210145286U (en) | Ear-nose-throat medicine sprayer | |
| CN205287117U (en) | Tube sealing device | |
| CN206409377U (en) | A kind of micro-piston pump | |
| CN206642211U (en) | A kind of medical fluid connecting tube of self sealss interface | |
| CN204815285U (en) | Airtight phlegm pipe interface module of inhaling of cock formula | |
| CN219440008U (en) | Medicine suction assembly | |
| CN204260753U (en) | Liquid suction pipe syringe needle | |
| CN219921713U (en) | Improved dosing joint | |
| CN212090499U (en) | Novel medicine applying device for department of stomatology | |
| CN215025215U (en) | Aseptic tee bend is used with chest union coupling to medical water-sealed bottle | |
| CN219148748U (en) | Simple gastric lavage device |
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 |
Granted publication date: 20170215 Termination date: 20170628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |