CN106390227A - Safe drip chamber used for infusion apparatus - Google Patents
Safe drip chamber used for infusion apparatus Download PDFInfo
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- CN106390227A CN106390227A CN201610964978.9A CN201610964978A CN106390227A CN 106390227 A CN106390227 A CN 106390227A CN 201610964978 A CN201610964978 A CN 201610964978A CN 106390227 A CN106390227 A CN 106390227A
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- Prior art keywords
- cavity
- horizontal membrane
- resorption
- membrane
- horizontal
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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
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- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—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 with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
-
- 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
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a safe drip chamber used for infusion apparatus, and relates to the technical field of medical apparatus. The safe drip chamber comprises a shell body, a floating body, and a horizontal membrane, wherein the lower end of the shell body is provided with a liquid outlet and a protruding part which protrudes from the liquid outlet, and a medicine liquor outlet part is arranged on the protruding part and is communicated with the liquid outlet; the floating body is arranged in the shell body and conducts lifting motion along with the rising and falling of the liquid inside the shell body, and a reentrant cavity is formed in the bottom of the floating body; the horizontal membrane is made from flexible materials, wherein the surface of the horizontal membrane is right opposite to the reentrant cavity and the lower surface of the horizontal membrane is right opposite to the medicine liquor outlet part; the horizontal membrane is fixed on inner walls of the reentrant cavity through a fixing part and forms an enclosed cavity with the reentrant cavity. According to the safe drip chamber used for infusion apparatus, the adoption of a split structure of the floating body and the horizontal membrane avoids the situation that when the horizontal membrane makes contact with the protruding part, edges of the horizontal membrane conducts an up-down motion, which leads to a movement in the center of the horizontal membrane driven by the edges and causes the generation of a gap between the membrane and the protruding part.
Description
Technical field
The present invention relates to technical field of medical instruments is and in particular to a kind of transfusion device safe dropper.
Background technology
Transfusion device is a kind of common medical treatment consumptive materials, through aseptic process, in order to set up the passage between vein and liquid,
For venous transfusion.
But, there is also weak point using transfusion device：Some transfusion devices do not have the function of " lock liquid ".Defeated when needing to change
When liquid bottle or liquid fluid injection finish, nursing staff fails to find in time, and air can easily enter in Venous Blood pipe, produces
Embolism, severe patient even results in patient death.Therefore for transfusion device, increase " lock liquid " function, can preferably ensure disease
The safety of people.
Chinese patent literature CN100534543C discloses a kind of safe transfusion system, including a release mechanism, described safety
The buoyancy aid that mechanism includes a housing and is located at described enclosure interior, forms a seal membrane, concave shaped portion and sealing below buoyancy aid
Diaphragm is integrally formed one cylindrical closely sealed part of composition, and seal membrane becomes the bottom surface of cylindrical closely sealed part, and concave shaped portion becomes
The side wall of cylindrical closely sealed part.Housing lower end is provided with connector, and this connector is projecting, and connector has for liquid medicine flow
Through hole, at the end of dropping liquid, release mechanism falls under gravity, and described seal membrane is contacted with connector, described sealing
Diaphragm deforms slightly upwards, thus sealing through hole, stops gas intravasation.
But, in prior art, described sealing pad pasting and described side wall all using identical flexible material, as silica gel system
Become, and the two is integrally formed.But due to silica gel soft material, when silica gel touches liquid outlet, sealing pad pasting is upwardly-deformed
When, sealing pad pasting can drive concave shaped portion（The i.e. side wall of cylindrical closely sealed part）, so that concave shaped portion is upturned, be easily caused sealing paste
Form gap between film and liquid outlet, cause only liquid failure.
Content of the invention
In view of this, the technical problem to be solved in the present invention is to overcome sealing pad pasting in prior art to connect with liquid outlet
When tactile, sealing pad pasting moves upwards, produces gap between sealing pad pasting and liquid outlet, leads to seal membrane to seal not with liquid outlet
Tight defect.
For realize the purpose of the present invention employing technical scheme be：A kind of transfusion device safe dropper is it is characterised in that wrap
Include housing, buoyancy aid, horizontal membrane, the bottom of described housing is provided with liquid outlet and protrudes from the prominent of described liquid outlet setting
Portion, described protuberance is provided with medicine liquid outlet portion and is connected with described liquid outlet；Described buoyancy aid be arranged on described enclosure interior and with
The liquid lifting of enclosure interior moves up and down, and the bottom of described buoyancy aid is provided with cavity；Described horizontal membrane is by flexible material
Make, just to described cavity, lower surface is just to described medicine liquid outlet portion for the upper surface of described horizontal membrane；Described horizontal membrane is led to
Cross fixture and be fixed on cavity interior walls and described cavity formation closed cavity.
Further, described cavity be internally provided with horizontal stand terrace, described cavity is split by described horizontal stand terrace
For epicoele and cavity of resorption, the internal diameter of described epicoele is less than the internal diameter of described cavity of resorption, and described horizontal membrane is arranged on described horizontal bench
On face.
Further, it is provided with the fixed structure with fixture cooperation in described cavity of resorption, described fixed structure is lower cavity wall
The raised wedge structure of lower limb.
Further, it is provided with the fixed structure with fixture cooperation in described cavity of resorption, described fixed structure is arc
Groove, described deep-slotted chip breaker is arranged on the madial wall of described cavity of resorption.
Further, it is provided with the fixed structure with fixture cooperation in described cavity of resorption, described fixed structure includes point
Thorn portion, described sharp portion is provided at circumferentially spaced along the madial wall of described cavity of resorption, and described sharp portion is towards described fixture
Radially projecting to act against on described fixture.
Further, described fixture is snap ring.
Further, on the upper surface of described snap ring, circumferentially uniform intervals are provided with least one set projection；Described level
On step surface, the position corresponding with described projection is provided with the pit matching with described projection；Projection on described snap ring is by institute
State the inside that horizontal membrane is squeezed in described pit.
Further, the upper surface of described snap ring is circumferentially provided with annular flange flange, described horizontal stand terrace
Locate the position corresponding with described annular flange flange and form the pit matching with described annular flange flange；Described annular flange flange is by institute
State the inside being squeezed in described pit.
Further, described buoyancy aid includes lower buoyancy aid and the upper float of split setting, and described cavity is arranged on to be floated downward in vivo,
Described upper float is connected to above described lower buoyancy aid.
Beneficial effects of the present invention：
1. the transfusion device safe dropper that the present invention provides, its diaphragm is horizontal membrane, refers to buoyancy aid split, prevents from working as level
When diaphragm and protuberance come in contact, the edge of horizontal membrane moves up and down, and leads to marginal belt dynamic diaphragm centre to be transported
Dynamic, cause to produce gap between diaphragm and protuberance.Using the present invention provide safe dropper, when need change bottle or transfusion terminate
When, horizontal membrane fits on protuberance all the time, stops air from entering lower section flexible pipe and enter in the patient.
2. the present invention provide transfusion device safe dropper, described horizontal stand terrace by described cavity be divided into epicoele and under
Chamber, the internal diameter of described epicoele is less than the internal diameter of described cavity of resorption, and described horizontal membrane abuts on described horizontal stand terrace, its upper table
Face is just to described epicoele.
Described epicoele and cavity of resorption diametrically have gap, form horizontal stand terrace, described horizontal bench by diameter difference
Face be located at horizontal membrane top, in order to limit levels diaphragm vertical direction motion, prevent horizontal membrane with liquid outlet
During effect, entirety is moved upwards.
3. the transfusion device safe dropper that the present invention provides, the external diameter of described snap ring is less than internal diameter the clamp of described cavity of resorption
In described cavity of resorption, described horizontal membrane is folded between the upper surface of described snap ring and described horizontal stand terrace.
There is between snap ring and horizontal stand terrace gap, horizontal membrane is folded in the middle of gap, snap ring and horizontal stand terrace
The both sides up and down at the edge of fixing horizontal membrane, when preventing horizontal membrane from contacting with protuberance, edge moves, and then leads to
Produce gap between horizontal membrane and protuberance, cause air to be again introduced in protuberance.
4. the present invention provide transfusion device safe dropper, on the upper surface of described snap ring along radial direction form to
Few one group of projection；At described horizontal stand terrace the position corresponding with described projection form recessed with what described projection matched
Hole；A part for horizontal membrane described in described projection jack-up, by this portion extrusion in the inside of described pit.
Described projection is matched with described pit, is folded with therebetween horizontal membrane, simultaneously projection and pit formation
Clamping pair is mobilizable, due to a part for projection jack-up horizontal membrane, by this portion extrusion in the inside of pit, is preventing
While diaphragm moves up and down, the crystallized ability to diaphragm can be improved.
5. the transfusion device safe dropper that the present invention provides, described snap ring top forms the convex annular circumferentially arranging
Edge, at described horizontal stand terrace the position corresponding with described annular flange flange form recessed with what described annular flange flange matched
Hole；A part for horizontal membrane described in described annular flange flange jack-up, by this portion extrusion in the inside of described pit.
Because annular flange flange is arranged along whole circumference scope, the contact therefore between annular flange flange and pit also can be more
Closely, this undoubtedly increased the sealing property between concave shaped portion and cavity of resorption.
6. the transfusion device safe dropper that the present invention provides, described in the jack-up of described annular flange flange, the part of horizontal membrane is
Circular arc or horizontal plane shape；Described pit is the circular arc matching with described circular arc, or with described horizontal plane shape cooperation
Horizontal plane shape.So setting can prevent from causing the damage of horizontal membrane.
7. the transfusion device safe dropper that the present invention provides, described fixed structure has various ways, but its function is all can
To catch described fixture snap ring, thus preventing snap ring from falling from cavity of resorption.The first is that snap ring is convex with the wedge shape of described cavity of resorption
Play cooperation, effectively ensure the connective stability of faying face therebetween, improve the binding ability between the two；Second is
Snap ring is coordinated with deep-slotted chip breaker；The third is sharp portion on fixed structure, acts against and realizes on described snap ring fixing, by sharp portion
Lean described snap ring, because sharp portion can go deep into the inwall of snap ring, therefore can be effectively prevented the downward landing of snap ring；4th
Planting is that fixed structure includes tip, and tip is arranged on snap ring, is formed with lower cavity wall with the wedge-shaped protrusion in first kind of way
Bending cooperation so that snap ring is tightly held in cavity of resorption, prevent the downward landing of snap ring.
8. the transfusion device safe dropper that the present invention provides, during changing liquid, there may be liquid and flows into described housing
Behind inside, buoyancy aid itself cannot float up to the situation above housing, and liquid outlet can be led to cannot to open for this so that liquid cannot be suitable
Profit flowing.By described upper float, due to forming cavity inside upper float, inside cavity, it is filled with air, therefore itself floats
Power preferably, therefore after liquid enters enclosure interior, can drive lower buoyancy aid to float.
Brief description
A kind of structural representation of the embodiment of the safe dropper that Fig. 1 provides for the present invention；
A kind of structural representation of the embodiment of the horizontal membrane of the safe dropper that Fig. 2 provides for the present invention；
A kind of structural representation of the embodiment of the lower buoyancy aid of the safe dropper that Fig. 3 provides for the present invention；
A kind of schematic diagram of the assembling mode of the lower buoyancy aid of the safe dropper that Fig. 4 provides for the present invention, horizontal membrane and snap ring；
The signal of the second assembling mode of the lower buoyancy aid, horizontal membrane and snap ring of the safe dropper that Fig. 5 provides for the present invention
Figure；
A kind of assembling schematic diagram of buoyancy aid for providing in present invention offer for the Fig. 6；
The structural representation of the lower buoyancy aid another embodiment of the safe dropper that Fig. 7 provides for the present invention；
The signal of the third assembling mode of lower buoyancy aid, horizontal membrane and snap ring of the safe dropper that Fig. 8 provides for the present invention
Figure；
The signal of the 4th kind of assembling mode of the lower buoyancy aid of the safe dropper that Fig. 9 provides for the present invention, horizontal membrane and snap ring
Figure；
The signal of the 5th kind of assembling mode of the lower buoyancy aid of the safe dropper that Figure 10 provides for the present invention, horizontal membrane and snap ring
Figure；
The assembling schematic diagram of another kind of buoyancy aid for providing in present invention offer for the Figure 11.
Description of reference numerals：
1- housing；11- upper shell；12- lower house；2- liquid outlet；21- protuberance；3- buoyancy aid；31- upper float；Buoyancy aid under 32-；
4- cavity；41- horizontal stand terrace；42- epicoele；43- cavity of resorption；431- first conical surface；5- horizontal membrane；6- snap ring；61- second bores
Face；62- projection；63- annular flange flange；64- arc auxiliary section；65- is most advanced and sophisticated；411- pit；7- circular groove；8- sharp portion.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of transfusion device safe dropper, including：Housing 1, the bottom shaping of described housing 1
The protuberance having liquid outlet 2 and protruding from described liquid outlet setting, described protuberance 21 forms medicine liquid outlet portion and institute
State liquid outlet 2 to connect；Buoyancy aid 3, is arranged on described housing 1 inside and moves up and down, under it with the liquid lifting within housing 1
Side is provided with cavity 4；Horizontal membrane 5, is fabricated from a flexible material, and just to described cavity 4, lower surface is just to described medicine for its upper surface
Liquid export department；Fixture, with described horizontal membrane 5 split setting, described horizontal membrane 5 is resisted against the side wall of described cavity 4
Lower edge that is upper or being fixed on described buoyancy aid 3, described fixture is fixed on the inside of described cavity 4 by fixed structure.
Above-mentioned transfusion device safe dropper, horizontal membrane 5 is resisted against the side of cavity 4 by the fixture arranging with its split
On wall or be fixed on the lower edge of described buoyancy aid 3 so that horizontal membrane 5 is firmly installed, prevent when horizontal membrane 5 with prominent
When portion 21 comes in contact, the edge of horizontal membrane 5 moves up and down, and is not result in that edge drives horizontal membrane 5 centre
Motion, does not result in generation gap between horizontal membrane 5 and protuberance 21.Using above-mentioned safe dropper, when need change bottle or transfusion
At the end of, horizontal membrane 5 fits on protuberance 21 all the time, stops air from entering lower section flexible pipe and enter in the patient.
The structural representation of described horizontal membrane 5 is given in Fig. 2.
As one kind preferred embodiment, horizontal membrane 5 is fixed on the inside of described cavity 4, specifically, as Fig. 3 institute
Show, the inside of described cavity 4 forms horizontal stand terrace 41, and described cavity 4 is divided into epicoele 42 by described horizontal stand terrace 41
With cavity of resorption 43, the internal diameter of described epicoele 42 is less than the internal diameter of described cavity of resorption 43, and described horizontal membrane 5 abuts in described horizontal bench
On face 41, its upper surface is just to described epicoele 42.Described epicoele 42 and cavity of resorption 43 diametrically have gap, by diameter difference shape
Become horizontal stand terrace 41, described horizontal stand terrace 41 is located at the top of horizontal membrane 5, the top at horizontal membrane 5 edge is fixed,
It is effectively prevented horizontal membrane 5 and produce therebetween gap with during ejection part effect.
As preferred embodiment, described horizontal membrane 5 is reclined by fixture and is fixed on described horizontal stand terrace 41
On, fixture is clamped in the both sides of horizontal membrane 5 together with horizontal stand terrace 41, in order to limit levels diaphragm 5 edge upper and lower
The motion in direction, thus preventing diaphragm edge from driving central motion, leads to produce gap between its center and protuberance.
As fixture one kind preferred embodiment, as shown in figure 8, described fixture be snap ring 6, described snap ring 6
Upper surface be plane, the external diameter of described snap ring 6 is less than the internal diameter of described cavity of resorption 43 and is installed in described cavity of resorption 43, described water
Flat diaphragm 5 is folded between the upper surface of described snap ring 6 and described horizontal stand terrace 41.
As a kind of embodiment of deformation of fixture, as shown in figure 3, along radially on the upper surface of described snap ring 6
Direction forms least one set projection 62；At described horizontal stand terrace 41, the position corresponding with described projection 62 forms and institute
State the pit 411 that projection 62 matches；A part for horizontal membrane 5 described in described projection 62 jack-up, by this portion extrusion in institute
State the inside of pit 411.
Described projection is matched with described pit, is folded with therebetween horizontal membrane, simultaneously projection and pit formation
Clamping pair is mobilizable, due to a part for projection jack-up horizontal membrane, by this portion extrusion in the inside of pit.Preferably
Ground, as shown in Figure 10, the upper surface of described snap ring 6 forms two groups of projections 62 along radial direction, is radially arranged side by side
Projection, the bigger blessing power of the flat diaphragm that can feed water, after horizontal membrane 5 is contacted with each other with protuberance, can be better protected from
Horizontal membrane 5 is to the contraction at center.
Specifically, as shown in Figure 10, the part of the horizontal membrane 5 described in jack-up of described projection 623 is horizontal plane shape；Described
Pit 411 is the horizontal plane shape with the cooperation of described horizontal plane shape, to prevent water flat diaphragm 5 by the damage of the part of jack-up.
As a kind of embodiment of deformation of fixture, as shown in figure 5, on the upper surface of described snap ring 6 circumferentially
Direction is provided with annular flange flange 63, and at described horizontal stand terrace 41, the position corresponding with described annular flange flange 63 forms and institute
State the pit 411 that annular flange flange 63 matches；A part for horizontal membrane 5 described in described annular flange flange 63 jack-up, by this part
It is squeezed in the inside of described pit 411.Due to annular flange flange 63 along whole circumference scope arrange, therefore annular flange flange 63 with recessed
Contact between hole also can be even closer.
Specifically, as shown in figure 5, the part of horizontal membrane 5 described in the jack-up of described annular flange flange 63 is circular arc；Described
Pit 411 is the circular arc matching with described circular arc, to prevent water flat diaphragm 5 by the damage of the part of jack-up.
As the fixed structure for fixture one kind preferred embodiment, as in Figure 3-5, described fixed structure
Including deep-slotted chip breaker 7, described deep-slotted chip breaker 7 is molded on the madial wall of described cavity of resorption 43；Form and described arc on described snap ring 6
The arc auxiliary section 64 that groove 7 closely presses.
Described deep-slotted chip breaker 7 can be arc groove or elliptic arc groove or other shapes, as long as described snap ring 6
Described arc auxiliary section 64 can stably be buckled in the inside.
As the variant embodiment of fixed structure, as shown in Figure 7, Figure 8, described fixed structure includes first conical surface 431,
Described first conical surface 431 is molded on the madial wall of described cavity of resorption 43, and described first conical surface 431 is opened from the top of described cavity of resorption 43
Begin to tilt towards the center of described cavity of resorption 43；Second closely being pressed with described first conical surface 431 is formed on described snap ring 6
The conical surface 61.
As shown in Figure 7 and Figure 8, because first conical surface is to centroclinal, therefore described snap ring can be caught, thus preventing card
Ring falls from cavity of resorption.Described snap ring 6 position corresponding with described first conical surface 431 of described cavity of resorption 43 forms the second cone
Face 61, described second conical surface 61 is parallel to each other and fits tightly with described first conical surface 431, effectively ensures and ties therebetween
The connective stability in conjunction face, improves the sealing property between the two.
Specifically, described second conical surface 61 supports described first conical surface 431, and contact surface therebetween coincide each other.
As the embodiment of the deformation of fixed structure, as shown in figure 9, described fixed structure includes sharp portion 8, described point
Thorn portion 8 is molded on the madial wall of described cavity of resorption 43 along the madial wall of described cavity of resorption 43, and towards described snap ring 6 direction radially
Project to act against on described snap ring 6.
As shown in figure 9, described snap ring 6 is leaned by sharp portion, because sharp portion can go deep into the inwall of snap ring, therefore may be used
To be effectively prevented the downward landing of snap ring.
As the embodiment of the deformation of fixed structure, as shown in Figure 10, described fixed structure includes most advanced and sophisticated 65, described point
End is molded on described snap ring 6, radially projecting towards the madial wall of described cavity of resorption 43, and the madial wall of described cavity of resorption 43 has the
One conical surface 431, described first conical surface 431 starts to tilt towards the center of described cavity of resorption 43 from the top of described cavity of resorption 43.
As shown in Figure 10, the diameter of described cavity of resorption 43 bottom surface is less than described two most advanced and sophisticated 65 diameters, therefore can rise
The effect moving downward to the described snap ring 6 of restriction.
As buoyancy aid preferred embodiment, as shown in figure 1, described buoyancy aid 3 includes the lower buoyancy aid 32 of split setting, institute
Stating floats downward forms described cavity 4 in vivo；Upper float 31, is connected to above described lower buoyancy aid 32.
During changing liquid, it is understood that there may be after liquid flows into described enclosure interior, buoyancy aid itself cannot float up on housing
The situation of side, liquid outlet can be led to cannot to open for this so that liquid cannot smooth flow.By described upper float, due to floating
Internal portion forms cavity, and cavity inside is filled with air, therefore natural buoyancy preferably, therefore when liquid enters enclosure interior
Afterwards, lower buoyancy aid can be driven to float.
The buoyancy aid providing in the present embodiment can be only made up of lower buoyancy aid, there is no upper float although not having on
During buoyancy aid, the floating effect of buoyancy aid itself is affected, but still is able to obtain good sealing effectiveness.As shown in fig. 6, flat membrane
Piece 5 is arranged between snap ring 6 and buoyancy aid 3, in Fig. 6 provide buoyancy aid 3 only there is lower buoyancy aid, this buoyancy aid 3 does not include with upper
The position that buoyancy aid 31 is connected.The embodiment containing upper float 31 that the in figures such as Fig. 3 and Fig. 5 that compare provide, provides in Fig. 6
Safe dropper floating performance not as good as above the two, but when horizontal membrane and protuberance come in contact, the side of horizontal membrane
Edge will not move up and down, and does not result in generation gap between diaphragm and protuberance.Figure 11 gives the reality of similar Fig. 6 simultaneously
Apply mode, as shown in Figure 11, described buoyancy aid 3 only has lower buoyancy aid, and the buoyancy aid 3 of in figure is in that flat is arranged, horizontal membrane 5
It is arranged between snap ring 6 and buoyancy aid 3.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Change among still in the protection domain of the invention.
Claims (9)
1. a kind of transfusion device safe dropper is it is characterised in that include housing, buoyancy aid, horizontal membrane, the bottom of described housing sets
The protuberance having liquid outlet and protruding from the setting of described liquid outlet, described protuberance be provided with medicine liquid outlet portion with described go out liquid
Mouth connection；Described buoyancy aid is arranged on described enclosure interior and moves up and down with the liquid lifting of enclosure interior, described buoyancy aid
Bottom is provided with cavity；Described horizontal membrane is fabricated from a flexible material, the upper surface of described horizontal membrane just to described cavity, under
Surface is just to described medicine liquid outlet portion；Described horizontal membrane is fixed on cavity interior walls by fixture and forms closing with described cavity
Cavity.
2. transfusion device safe dropper according to claim 1 it is characterised in that described cavity be internally provided with level
Step surface, described cavity is divided into epicoele and cavity of resorption by described horizontal stand terrace, and the internal diameter of described epicoele is less than described cavity of resorption
Internal diameter, described horizontal membrane is arranged on described horizontal stand terrace.
3. transfusion device safe dropper according to claim 2 is joined it is characterised in that being provided with described cavity of resorption with fixture
The fixed structure closing, described fixed structure is the wedge structure of the lower limb projection of lower cavity wall.
4. transfusion device safe dropper according to claim 2 is it is characterised in that being provided with described cavity of resorption and fixing
The fixed structure of part cooperation, described fixed structure is deep-slotted chip breaker, and described deep-slotted chip breaker is arranged on the madial wall of described cavity of resorption.
5. transfusion device safe dropper according to claim 2 is it is characterised in that being provided with described cavity of resorption and fixing
The fixed structure of part cooperation, described fixed structure includes sharp portion, and described sharp portion is along between the madial wall circumference of described cavity of resorption
Every setting, and described sharp portion towards described fixture radially projecting to act against on described fixture.
6. transfusion device safe dropper according to claim 5 is it is characterised in that described fixture is snap ring.
7. transfusion device safe dropper according to claim 6 is it is characterised in that on the upper surface of described snap ring circumferentially
Uniform intervals are provided with least one set projection；On described horizontal stand terrace the position corresponding with described projection be provided with convex with described
The pit that post matches；Described horizontal membrane is squeezed in the inside of described pit by the projection on described snap ring.
8. according to the arbitrary described transfusion device safe dropper of claim 6 it is characterised in that on the upper surface of described snap ring edge
Circumferencial direction and be provided with annular flange flange, at described horizontal stand terrace, the position corresponding with described annular flange flange forms and institute
State the pit that annular flange flange matches；Described annular flange flange is by the described inside being squeezed in described pit.
9. transfusion device safe dropper according to claim 1 is it is characterised in that described buoyancy aid is included under split setting
Buoyancy aid and upper float, described cavity is arranged on to be floated downward in vivo, and described upper float is connected to above described lower buoyancy aid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964978.9A CN106390227A (en) | 2016-10-31 | 2016-10-31 | Safe drip chamber used for infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964978.9A CN106390227A (en) | 2016-10-31 | 2016-10-31 | Safe drip chamber used for infusion apparatus |
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| Publication Number | Publication Date |
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| CN106390227A true CN106390227A (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610964978.9A Withdrawn CN106390227A (en) | 2016-10-31 | 2016-10-31 | Safe drip chamber used for infusion apparatus |
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| CN (1) | CN106390227A (en) |
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| CN202751643U (en) * | 2012-08-09 | 2013-02-27 | 四川普瑞斯生物科技有限公司 | Disposable bi-direction self-sealing type liquid-stopping blood-return-prevention infusion device |
| CN105126191A (en) * | 2015-08-19 | 2015-12-09 | 四川普瑞斯生物科技有限公司 | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber |
| CN206454059U (en) * | 2016-09-19 | 2017-09-01 | 四川普瑞斯生物科技有限公司 | A kind of transfusion device safe dropper |
-
2016
- 2016-10-31 CN CN201610964978.9A patent/CN106390227A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202751643U (en) * | 2012-08-09 | 2013-02-27 | 四川普瑞斯生物科技有限公司 | Disposable bi-direction self-sealing type liquid-stopping blood-return-prevention infusion device |
| CN105126191A (en) * | 2015-08-19 | 2015-12-09 | 四川普瑞斯生物科技有限公司 | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber |
| CN206454059U (en) * | 2016-09-19 | 2017-09-01 | 四川普瑞斯生物科技有限公司 | A kind of transfusion device safe dropper |
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Application publication date: 20170215 |