CN108261581B - Liquid-feeding pump system - Google Patents
Liquid-feeding pump system Download PDFInfo
- Publication number
- CN108261581B CN108261581B CN201711015446.1A CN201711015446A CN108261581B CN 108261581 B CN108261581 B CN 108261581B CN 201711015446 A CN201711015446 A CN 201711015446A CN 108261581 B CN108261581 B CN 108261581B
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- Prior art keywords
- liquid
- pump system
- feeding pump
- reservoir
- rod
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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
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
-
- 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
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
- A61M5/152—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags pressurised by contraction of elastic reservoirs
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
-
- 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
- A61M2005/1404—Keep vein-open rate [KVO], i.e. low flow rate
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
Landscapes
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of liquid-feeding pump systems comprising elastic force device for storing liquid, elastic force device for storing liquid include：Reservoir is equipped with liquid storage inner cavity；The body of rod is arranged in intracavitary in the liquid storage of reservoir, and the body of rod is equipped with the gap being connected to liquid storage inner cavity, and gap extends along body of rod length direction, and positioned at intracavitary in liquid storage；Connector is connected to the one end of the body of rod far from reservoir, and is connected to gap, and connector is used for liquid storage inner cavity filling liquid and liquid storage inner cavity outward to liquid.The present invention greatly reduces elastic force device for storing liquid overall volume by the structure design of elastic force device for storing liquid, to reduce the overall volume of liquid-feeding pump system, so as to be convenient for carrying.
Description
Technical field
The present invention relates to a kind of liquid-feeding pump systems.
Background technology
Currently, easy ting produce thrombus in the Implantable Medical Devices conduit such as remaining needle and influencing the health of patient；Meanwhile it is existing
The volume of some liquid-feeding pump components is too big, and patient is not readily portable during use to cause inconvenient activity.Part implantable
Medical instrument Implantation Time is more than 30 days, and patient can return to oneself residence after use, at this time these implantable Medical treatment devices
Tool just loses clinical care, and since implantable conduit is in closed state, in the case of no liquid medicine flow, blood is easy
It condenses to form thrombus in conduit mouth, when patient goes to clinic again, thrombus needs a large amount of by implantable catheter blockage
Clinical position is dredged, and the nursing burden that patient health also increases medical staff is unfavorable for.
Invention content
The technical problem to be solved by the present invention is in order to overcome the volume of existing liquid-feeding pump component in the prior art too big,
Patient's not readily portable defect for causing inconvenient activity during use, provides a kind of liquid-feeding pump system.
The present invention is to solve above-mentioned technical problem by following technical proposals：
A kind of liquid-feeding pump system, feature are comprising elastic force device for storing liquid, the elastic force device for storing liquid include：
Reservoir, the reservoir are equipped with liquid storage inner cavity；
The body of rod, the body of rod are arranged in intracavitary in the liquid storage of the reservoir, and the body of rod is equipped with and the liquid storage inner cavity
The gap of connection, the gap extend along the body of rod length direction, and positioned at intracavitary in the liquid storage；
Connector, the connector is connected to the one end of the body of rod far from the reservoir, and is connected to the gap,
The connector is used for liquid storage inner cavity filling liquid and the liquid storage inner cavity outward to liquid.
In the technical scheme, by the structure design of elastic force device for storing liquid, it is whole greatly to reduce elastic force device for storing liquid
Body volume, to reduce the overall volume of liquid-feeding pump system, so as to be convenient for carrying；Meanwhile by the body of rod setting with
The structure in the gap of liquid storage inner cavity connection, allows the Liquid Residue in reservoir to greatly reduce, because product itself needs to inject
Liquid it is few, so the number of Liquid Residue just seems most important.
Preferably, the body of rod is run through in the gap along the width direction of the body of rod.
Preferably, the outer surface of the body of rod it is circumferentially spaced be equipped with several intake chutes, and several intake chutes with
The gap is connected.
In the technical scheme, if by be arranged intake chute, allow the Liquid Residue in reservoir by intake chute as possible
Gap is flowed to, to further reduce the Liquid Residue in reservoir, reduces infusion cost.
Preferably, the elastic force device for storing liquid further includes the first lid and the second lid, first lid and the second lid
Body is used to respectively be snapped in the both ends of the reservoir outer surface of the body of rod.
In the technical scheme, by the first lid and the second lid, reservoir is enable hermetically to be sheathed on the body of rod
Outer surface.
Preferably, the liquid-feeding pump system further includes：
Shell；
Current limiting tube is at least partially disposed in the shell；
Dosing part is located in the shell, and one end is connect with the connector of the elastic force device for storing liquid；
Filter is located in the shell, and one end is connect with the connector of the elastic force device for storing liquid, the other end and institute
Current limiting tube connection is stated, the dosing part is formed with one first angle with the filter；
Wherein, the liquid-feeding pump system further includes filling liquid access and to liquid access, and the filling liquid access passes through the dosing
Part reaches the elastic force device for storing liquid；It is described to pass sequentially through the elastic force device for storing liquid, the filter and described to liquid access
Current limiting tube.
In the technical scheme, by the way that dosing part, elastic force device for storing liquid, filter and current limiting tube to be at least partly respectively provided with
In the accommodating cavity of shell, and by the way that dosing part, elastic force device for storing liquid to be directly connected to filter, use most concision and compact
Structure complete filling liquid access and the setting to liquid access, substantially reduce the overall volume of liquid-feeding pump system, make liquid-feeding pump
System is convenient for carrying, even if can be good at work if not under medical environment.In other technologies scheme, current limiting tube also may be used
To be entirely located in the accommodating cavity of shell, can be configured according to actual needs.
Preferably, the connector is equipped with the connecting cavity and through-hole for being connected and being connected to, the through-hole connects with the gap
Logical, the one end of the connecting cavity far from the through-hole connect and is connected to the filter, the central axis of the connecting cavity and
The angle that the central axis of the through-hole is formed is first angle.
Preferably, the dosing part is inserted in the one end of the through-hole far from the gap；The dosing part includes head,
The head is located at the junction of the through-hole and the connecting cavity, and the material on the head is elastic material.
Preferably, the side wall on the head is the skew wall that diameter gradually successively decreases, length and the width of the skew wall are all higher than
Diameter of the connecting cavity close to described through-hole one end.
In the technical scheme, setting by the size of the connecting cavity of the side wall dimensions and corresponding position on the head of dosing part
Meter, when liquid is by filling liquid access, the side wall on head opens and has blocked the company of connecting cavity and through-hole under the impact of liquid
It is logical；And be closed in liquid by giving liquid access, the side wall on head, to not influence the connection of connecting cavity and through-hole.
Preferably, the shell includes the head cover being oppositely arranged and bottom cover and is connected to the head cover and the bottom cover
Between side wall；The side wall is equipped with medicine feeding hole and current limliting pore, and one end of the dosing part is arranged in the medicine feeding hole, institute
The one end for stating current limiting tube is arranged in the current limliting pore.
Preferably, the liquid-feeding pump system further includes guiding-positioning structure, the guiding-positioning structure is set to the bottom cover
Inner surface, the guiding-positioning structure be equipped with guide groove, the current limiting tube is arranged in the guide groove, to limit the limit
The crooked radian of flow tube.
In the technical scheme, the crooked radian that current limiting tube is limited by the way that guide groove is arranged prevents current limiting tube in bending
It bends, and leads to the blocking inside current limiting tube.
Preferably, the guiding-positioning structure includes：
At least two risers, at least two risers are arranged by inside to outside spacers；
Bottom plate, at least two described corresponding one end of riser are connect with the bottom plate；
Wherein, two adjacent risers are formed around with the guide groove with the bottom plate.
Preferably, the riser includes curved portion, the shape of the curved portion is arc-shaped.
Preferably, the material of the guiding-positioning structure is flexible material.
Preferably, the quantity of the guiding-positioning structure is several, several guiding-positioning structure intervals are set to institute
State the inner surface of bottom cover.
In the technical scheme, the position of guiding-positioning structure needs the position being bent to be arranged according to current limiting tube.
Preferably, the head cover is equipped with opening, the opening corresponds to the reservoir and is arranged.
In the technical scheme, it is open by being arranged, makes reservoir in the accommodating cavity of limited shell, it being capable of part position
In outside accommodating cavity, so as to store more liquid；It is identified by the way that capacity is arranged, the liquid being apparent that in reservoir
Body situation facilitates monitoring filling liquid and to liquid.
Preferably, the length of the shell is less than 8mm, the width of the shell is less than 7mm.
Preferably, the filter includes：
Tube body, the tube body connect and are connected to the connector of the elastic force device for storing liquid；
One filter membrane, the filter membrane are located between the connector and the tube body.
Preferably, the tube body is equipped with the first passage and second channel for being connected and being connected to, the first passage connection
Between the connector and the second channel, the central axis of the central axis and the second channel of the first passage
It is formed with one second angle.
In the technical scheme, by the way that the concrete structure of the tube body of filter is arranged, make the overall volume smaller of filter.
Preferably, the second channel is equipped with support element close to one end of the filter membrane, the support element is used to support
The filter membrane.
In the technical scheme, by the way that support element is arranged, filter membrane is made to be not easy to be broken to the liquid impulse force in liquid access
It is bad, extend the service life of filter membrane.
Preferably, the reservoir is hollow cryptomere, the material of the reservoir is malleable material.
Preferably, the body of rod and the connection body by integral forming.
On the basis of common knowledge of the art, above-mentioned each optimum condition can be combined arbitrarily to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that：
1, the present invention enables liquid in the form of quantitative, and liquid is constantly filled with into conduit, keeps conduit to blood vessel
There are liquid medicine flow, the formation of anti-tampon in this channel；
2, compact of the present invention is convenient for carrying, even if can be good at work if not under medical environment；
3, the present invention prevents current limiting tube from being bent in bending by setting guide groove set current limiting pipe, and causes to limit
Blocking inside flow tube；
4, Liquid Residue of the invention is few because product itself needs the liquid injected few, Liquid Residue number just
Seem most important.
Description of the drawings
Fig. 1 is the dimensional decomposition structure diagram of the liquid-feeding pump system of present pre-ferred embodiments.
Fig. 2 is the main structure diagram of the liquid-feeding pump system of present pre-ferred embodiments.
Fig. 3 is the internal structure schematic diagram of the liquid-feeding pump system of present pre-ferred embodiments.
Fig. 4 is the side view knot of the dosing part of the liquid-feeding pump system of present pre-ferred embodiments, elastic force device for storing liquid, filter
Structure schematic diagram.
Fig. 5 is the side view portion of the dosing part of the liquid-feeding pump system of present pre-ferred embodiments, elastic force device for storing liquid, filter
Separation structure schematic diagram.
Front view structure when Fig. 6 is in the elastic force device for storing liquid of the liquid-feeding pump system of present pre-ferred embodiments without liquid
Schematic diagram.
Fig. 7 is the schematic cross-sectional view of Fig. 6.
Fig. 8 has partial cross knot when liquid in the elastic force device for storing liquid for the liquid-feeding pump system of present pre-ferred embodiments
Structure schematic diagram.
Fig. 9 is the structural schematic diagram of the bottom cover and side wall of the shell of the liquid-feeding pump system of present pre-ferred embodiments.
Figure 10 is the structural schematic diagram of the guiding-positioning structure of the liquid-feeding pump system of present pre-ferred embodiments.
Figure 11 is the structural schematic diagram in the directions C in Figure 10.
Figure 12 is the structure of another embodiment of the guiding-positioning structure of the liquid-feeding pump system of present pre-ferred embodiments
Schematic diagram.
Figure 13 is the structural schematic diagram in the directions D in Figure 12.
Reference sign
Shell 10
Accommodating cavity 11
Head cover 12
Opening 121
Capacity mark 122
Bottom cover 13
Card slot 131
Side wall 14
Medicine feeding hole 141
Current limliting pore 142
Guiding-positioning structure 15
Guide groove 151
Riser 152
Bottom plate 153
Curved portion 1521
The radius of curvature R of curved portion
Dosing part 20
Head 21
The side wall 211 on head
Elastic force device for storing liquid 30
Reservoir 31
Liquid storage inner cavity 311
The body of rod 32
Gap 322
Intake chute 323
Connector 33
Through-hole 331
Connecting cavity 332
First lid 34
Second lid 35
Filter 40
Filter membrane 41
Tube body 43
First passage 431
Second channel 432
Support element 44
Current limiting tube 50
The ventilative helmet 51 that blocks water
Conduit 60
First angle α
Second angle β
Specific implementation mode
A preferred embodiment is named, and completely illustrates the present invention in conjunction with attached drawing to become apparent from.
Understood incorporated by reference to Fig. 1-Figure 13, the implementation case provides a kind of liquid-feeding pump system comprising：Shell 10 adds
Medicine part 20, elastic force device for storing liquid 30, filter 40, current limiting tube 50.Shell 10 is equipped with accommodating cavity 11, dosing part 20, elastic force liquid storage
Device 30, filter 40 and current limiting tube 50 may be contained in the accommodating cavity 11 of shell 10.In other embodiments, current limiting tube
It can partly be located in the accommodating cavity of shell, can be configured according to actual needs.The internal diameter of current limiting tube 50 is 60-90 μm.
In this way, liquid can constantly be filled with liquid in the form of quantitative into transfusion catheter, keeping transfusion catheter, this is logical to blood vessel
There are liquid medicine flow, the formation of anti-tampon in road.The material of shell 10 is transparent material.
Liquid-feeding pump system further include filling liquid access and give liquid access, the filling liquid access pass through dosing part 20 reach elastic force storage
Liquid device 30；It is described to pass sequentially through elastic force device for storing liquid 30, filter 40 and current limiting tube 50 to liquid access.In this way, by that will add
Medicine part 20, elastic force device for storing liquid 30, filter 40 and current limiting tube 50 may be contained in shell 10, and by by dosing part 20,
Elastic force device for storing liquid 30 is directly connected to filter 40, and filling liquid access and setting to liquid access are completed using most succinct structure
It sets, substantially reduces the overall volume of liquid-feeding pump system, liquid-feeding pump system is made to be convenient for carrying, even if not under medical environment
It can be good at work.The length of shell 10 is less than 8mm, and the width of shell 10 is less than 7mm.
Elastic force device for storing liquid 30 includes：Reservoir 31, the body of rod 32, connector 33, the first lid 34 and the second lid 35.Bar
Body 32 is integrally formed with connector 33.Reservoir 31 is equipped with liquid storage inner cavity 311.That is, the filling liquid access passes through dosing
Part 20 reaches the liquid storage inner cavity 311 of elastic force device for storing liquid 30；The liquid storage that elastic force device for storing liquid 30 is passed sequentially through to liquid access
Inner cavity 311, filter 40 and current limiting tube 50.
Reservoir 31 is hollow cryptomere, and the material of reservoir 31 is malleable material.The malleable material is breast
Glue or silica gel.
The body of rod 32 is arranged in the liquid storage inner cavity 311 of reservoir 31, and the body of rod 32 is equipped between being connected to liquid storage inner cavity 311
Gap 322, gap 322 extend along the length direction A of the body of rod 32, and in liquid storage inner cavity 311.In this way, the body of rod 32 is as support
The unique parts of reservoir 31 can be only extended in reservoir 31 after injection liquid along the radial direction of reservoir 31, to big
The big length for reducing the axial direction (namely length direction A) shared by reservoir 31, to reduce elastic force device for storing liquid 30
Overall volume.In addition, the interstitial structure by the way that the body of rod is arranged, allows the Liquid Residue in reservoir to greatly reduce the (prior art
Liquid Residue in middle reservoir is 10% or so, and the Liquid Residue in the reservoir of the present embodiment is only 1% or so), because of production
Product itself need the liquid injected few, so the number of Liquid Residue just seems most important.In the present embodiment, gap 322
B runs through the body of rod 32 in the width direction.
In the present embodiment, as shown in figure 5, in order to most preferably show the structure of the body of rod 32 in figure, by reservoir 31, first
Lid 34 and the second lid 35 remove.It can be seen that the outer surface of the body of rod 32 is circumferentially spaced equipped with several intake chutes 323, and
Several intake chutes 323 are connected with gap 322.In this way, by the way that intake chute 323 is arranged in the outer surface of the body of rod 32, more into one
Step reduces the injection in the reservoir 31 for remaining in elastic force device for storing liquid 30, reduces infusion cost.
One end of dosing part 20, one end of filter 40 are connect with the connector 33 of the elastic force device for storing liquid 30, are added
Medicine part 20 is formed with the first angle α with filter 40.The other end of filter 40 is connect with current limiting tube 50.
Connector 33 is equipped with the connecting cavity 332 and through-hole 331 for being connected and being connected to, the gap of through-hole 331 and body of rod 32d
322 connections, the one end of connecting cavity 332 far from through-hole 331 connect and is connected to filter 40, the central axis of connecting cavity 332 and
The angle that the central axis of through-hole 331 is formed is the first angle α.That is central axis of the filter 40 along connecting cavity 332
Direction extends, and dosing part 20 extends along the central axial direction of through-hole 331.In the present embodiment, the first angle α is 65-115
Degree, preferably, the first angle α is 90 degree.Can make in this way dosing part 20, elastic force device for storing liquid 30,40 three of filter it is whole
Body structure is compacter, occupied space smaller, to make the overall volume smaller of filter.
First lid 34 and the second lid 35 are used to respectively be snapped in the both ends of reservoir 31 appearance of the body of rod 32
Face.In this way, by the first lid and the second lid, reservoir is enable hermetically to be sheathed on the outer surface of the body of rod.In other realities
It applies in example, the both ends of reservoir 31 can also be fixedly connected on the outer surface of the body of rod by other means.
Dosing part 20 is inserted in the one end of through-hole 331 far from the gap 322.Dosing part 20 includes head 21, head 21
Positioned at the junction of through-hole 331 and connecting cavity 332, the material on head 21 is elastic material.The side wall 211 on head is that diameter is gradual
The skew wall to successively decrease, length and the width of the skew wall are all higher than the diameter of connecting cavity 332.In this way, passing through filling liquid access in liquid
When, the side wall 211 on head opens and has blocked the connection of connecting cavity 332 and through-hole 331 under the impact of liquid；And it is logical in liquid
It crosses and gives liquid access, the side wall 211 on head is closed, to not influence the connection of connecting cavity 332 and through-hole 331.
Shell 10 includes the head cover 12 being oppositely arranged and bottom cover 13 and the side wall being connected between head cover 12 and bottom cover 13
14.Side wall 14 is equipped with the medicine feeding hole 141 being connected to accommodating cavity 11 and current limliting pore 142.One end of dosing part 20 is arranged in dosing
In hole 141.Filter 40 is connected to elastic force device for storing liquid 30.Current limiting tube 50 is located in institute's accommodating cavity 11, one end of current limiting tube 50
It is arranged in current limliting pore 142, the other end is connected to filter 40.And current limiting tube 50 is arranged in one end of current limliting pore 142 and is arranged
There is the ventilative helmet 51 that blocks water.In this way, by the way that the ventilative helmet that blocks water is arranged, only liquid film is equipped in the ventilative helmet that blocks water, only liquid film exists
It before not infiltrated by liquid, will be discharged to the air in liquid access, can effectively prevent air after liquid infiltration passes through, and ensures to liquid
Infusion flow rate in access meets standard requirement, reduces the risk that air enters human body, is an effective safeguard procedures, greatly
The big safety for improving medical transfusion.
Preferably, head cover 12 is equipped with opening 121 and capacity mark 122, opening 121 corresponds to reservoir 31 and is arranged.Head cover
12 material is transparent material.Capacity mark 122 is located at the outer of opening 121.In this way, being open by being arranged, reservoir is made to exist
In the accommodating cavity of limited shell, can partly it be located at outside accommodating cavity, so as to store more liquid, that is, reservoir
When being radially extended, opening can be partially passed through, so as to store more liquid, meanwhile, it will not be deformed
And influence the measurement to its capacity.In addition, identified by the way that capacity is arranged, the liquid case being apparent that in reservoir,
Facilitate monitoring filling liquid and to liquid.
In the present embodiment, liquid-feeding pump system further includes guiding-positioning structure 15, and guiding-positioning structure 15 is set to bottom cover 13
Inner surface.Guiding-positioning structure 15 is equipped with guide groove 151.Current limiting tube 50 is arranged in the guide groove 151 of guiding-positioning structure 15
In, to limit the crooked radian of current limiting tube 50.The crooked radian of current limiting tube refers to current limiting tube around when being bent, and bending part is
Circular arc, the radian of the circular arc.The material of guiding-positioning structure 15 is flexible material.In the present embodiment, guiding-positioning structure 15
Material be resin, but be not limited to resin.In the present embodiment, the inner surface of bottom cover 13 is equipped with card slot 131；Guiding-positioning structure
15 are arranged in card slot 131, and current limiting tube 50 is arranged in the guide groove 151 of guiding-positioning structure 15.By the way that 131 side of card slot is arranged
Just guiding-positioning structure 15 is removably attachable to the inner surface of bottom cover 13.As shown in Figure 3 and Figure 9, the card slot 131 of bottom cover 13 with
The quantity of guiding-positioning structure 15 is four, and four card slots 131 and four intervals of guiding-positioning structure 15 are set on bottom cover 13
Inner surface.In this way, limiting the crooked radian of current limiting tube 50 by the way that guide groove 151 is arranged, prevent current limiting tube 50 when being bent
Bending, and lead to the blocking inside current limiting tube 50.Specifically, connect with filter 40 due to 50 one end of current limiting tube, the other end with
External connection, the current limiting tube 50 that is bound to will carry out surrounding bending in shell 10, and since the internal diameter of current limiting tube 50 is 60-90 μm,
If to it limited without 151 set current limiting pipe 50 of guide groove and when current limiting tube 50 is bent, current limiting tube 50 will be easy to occur
Phenomenon is bent, thus the case where being blocked it is easy to appear current limiting tube 50.In other embodiments, 15 quantity of guiding-positioning structure
Can be two, three, other numerical value such as five, those guiding-positioning structure intervals are set to the inner surface of bottom cover 13.
Guiding-positioning structure 15 includes：At least two risers 152 and bottom plate 153.As shown in Figures 10 and 11, riser
152 quantity is two, and two risers 152 are arranged by inside to outside spacers, and two 152 corresponding one end of the riser are equal
It is connect with the bottom plate.The height of the riser 152 in outside is equal to the height of inside riser 152.Two risers and the bottom
Plate surround and forms guide groove 151.The shape of the bottom of guide groove 151 matches with size and the shape of current limiting tube 50 with size.
Riser 152 includes curved portion 1521, and the shape of curved portion 1521 is arc-shaped.The song of the curved portion 1521 of the riser 152 of inside
Rate radius R is more than 10mm.As shown in figure 12 and figure 13, the quantity of riser 152 is three.Three risers 152 are by inside to outer
Side interval is arranged, and three 152 corresponding one end of the riser are connect with the bottom plate.Between two adjacent risers 152
Spacing all same.The height of outermost riser 152 is more than the height of other risers 152.Wherein, adjacent two it is described perpendicular
Plate is formed around with guide groove 151 with the bottom plate.The shape of the shape of the bottom of guide groove 151 and size and current limiting tube 50 with
Size matches.Riser 152 includes curved portion 1521, and the shape of curved portion 1521 is arc-shaped.The arc of innermost riser 152
The radius of curvature R in shape portion 1521 is more than 10mm.
In other embodiments, liquid-feeding pump system further includes transfusion catheter, i.e. conduit 60.Conduit 60 is located at accommodating cavity 11
Outside, and with the one end of current limiting tube 50 far from filter 40 it is connected.
The filter 40 of liquid-feeding pump system includes：Tube body 43 and filter membrane 41.
Tube body 43 connect and is connected to the connector 33 of elastic force device for storing liquid 30.Filter membrane 41 is located in connector 33 and pipe
Between body 43.
Tube body 43 is equipped with the first passage 431 and second channel 432 for being connected and being connected to, and first passage 431 is connected to
Between junctor 33 and second channel 432, the central axis of first passage 431 is formed with one with the central axis of second channel 432
Second angle β.In the present embodiment, the second angle β is 65-115 degree, preferably, the second angle β is 90 degree.It in this way can be straight
It connects bending and gives liquid access, to make the overall volume smaller of filter itself.In other embodiments, the second angle β can also
It is other numerical value.Second channel 432 is equipped with support element 44 close to one end of filter membrane 41.Support element is used to support the filtering
Film.It is described to pass sequentially through connecting cavity 332, filter membrane 41 and tube body 43 to liquid access, enter back into current limiting tube 50.In this way, by setting
Support element is set, makes filter membrane be not easy to be destroyed to the liquid impulse force in liquid access, extends the service life of filter membrane.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (17)
1. a kind of liquid-feeding pump system, which is characterized in that it includes elastic force device for storing liquid, and the elastic force device for storing liquid includes：
Reservoir, the reservoir are equipped with liquid storage inner cavity；
The body of rod, the body of rod are arranged in intracavitary in the liquid storage of the reservoir, and the body of rod is equipped with and is connected to the liquid storage inner cavity
Gap, the gap extends along the body of rod length direction, and positioned at intracavitary in the liquid storage；
Connector, the connector is connected to the one end of the body of rod far from the reservoir, and is connected to the gap, described
Connector is used for liquid storage inner cavity filling liquid and the liquid storage inner cavity outward to liquid,
The liquid-feeding pump system further includes：
Shell；
Current limiting tube is at least partially disposed in the shell；
Dosing part is located in the shell, and one end is connect with the connector of the elastic force device for storing liquid；
Filter is located in the shell, and one end is connect with the connector of the elastic force device for storing liquid, the other end and the limit
Flow tube connects, and the dosing part is formed with one first angle with the filter；
Wherein, the liquid-feeding pump system further includes filling liquid access and to liquid access, and the filling liquid access arrived by the dosing part
Up to the elastic force device for storing liquid；It is described to pass sequentially through the elastic force device for storing liquid, the filter and the current limliting to liquid access
Pipe,
The connector is equipped with the connecting cavity and through-hole for being connected and being connected to, and the through-hole is connected to the gap, the connection
The one end of chamber far from the through-hole connect and is connected to the filter, in the central axis of the connecting cavity and the through-hole
The angle that mandrel line is formed is first angle, and the dosing part is inserted in the one end of the through-hole far from the gap；Institute
It includes head to state dosing part, and the head is located at the junction of the through-hole and the connecting cavity, and the material on the head is bullet
Property material, the side wall on the head is the skew wall that diameter gradually successively decreases, and length and the width of the skew wall are all higher than the connection
Diameter of the chamber close to described through-hole one end.
2. liquid-feeding pump system as described in claim 1, which is characterized in that the gap is run through along the width direction of the body of rod
The body of rod.
3. liquid-feeding pump system as described in claim 1, which is characterized in that be equipped with if the outer surface of the body of rod is circumferentially spaced
Dry intake chute, and several intake chutes are connected with the gap.
4. liquid-feeding pump system as described in claim 1, which is characterized in that the elastic force device for storing liquid further include the first lid and
Second lid, first lid and the second lid are used to respectively be snapped in the both ends of the reservoir appearance of the body of rod
Face.
5. liquid-feeding pump system as described in claim 1, which is characterized in that the shell includes the top lid and bottom being oppositely arranged
Lid and the side wall being connected between the head cover and the bottom cover；The side wall is equipped with medicine feeding hole and current limliting pore, described to add
One end of medicine part is arranged in the medicine feeding hole, and one end of the current limiting tube is arranged in the current limliting pore.
6. liquid-feeding pump system as claimed in claim 5, which is characterized in that the liquid-feeding pump system further includes guide-localization knot
Structure, the guiding-positioning structure are set to the inner surface of the bottom cover, and the guiding-positioning structure is equipped with guide groove, the current limiting tube
It is arranged in the guide groove, to limit the crooked radian of the current limiting tube.
7. liquid-feeding pump system as claimed in claim 6, which is characterized in that the guiding-positioning structure includes：
At least two risers, at least two risers are arranged by inside to outside spacers；
Bottom plate, at least two described corresponding one end of riser are connect with the bottom plate；
Wherein, two adjacent risers are formed around with the guide groove with the bottom plate.
8. liquid-feeding pump system as claimed in claim 7, which is characterized in that the riser includes curved portion, the curved portion
Shape is arc-shaped.
9. liquid-feeding pump system as claimed in claim 6, which is characterized in that the material of the guiding-positioning structure is flexible material
Matter.
10. liquid-feeding pump system as claimed in claim 6, which is characterized in that the quantity of the guiding-positioning structure is several,
Several guiding-positioning structure intervals are set to the inner surface of the bottom cover.
11. liquid-feeding pump system as claimed in claim 5, which is characterized in that the head cover is equipped with opening, and the opening corresponds to
The reservoir setting.
12. liquid-feeding pump system as described in claim 1, which is characterized in that the length of the shell is less than 8mm, the shell
The width of body is less than 7mm.
13. liquid-feeding pump system as described in claim 1, which is characterized in that the filter includes：
Tube body, the tube body connect and are connected to the connector of the elastic force device for storing liquid；
One filter membrane, the filter membrane are located between the connector and the tube body.
14. liquid-feeding pump system as claimed in claim 13, which is characterized in that the tube body is equipped with first for being connected and being connected to
Channel and second channel, the first passage are connected between the connector and the second channel, the first passage
The central axis of central axis and the second channel is formed with one second angle.
15. liquid-feeding pump system as claimed in claim 14, which is characterized in that the second channel close to the filter membrane one
End is equipped with support element, and the support element is used to support the filter membrane.
16. liquid-feeding pump system as described in claim 1, which is characterized in that the reservoir is hollow cryptomere, the reservoir
Material be malleable material.
17. the liquid-feeding pump system as described in any one of claim 1-16, which is characterized in that the body of rod and the connection
Body by integral forming.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015446.1A CN108261581B (en) | 2017-10-26 | 2017-10-26 | Liquid-feeding pump system |
| PCT/CN2018/095361 WO2019080544A1 (en) | 2017-10-26 | 2018-07-12 | Liquid supply pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015446.1A CN108261581B (en) | 2017-10-26 | 2017-10-26 | Liquid-feeding pump system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108261581A CN108261581A (en) | 2018-07-10 |
| CN108261581B true CN108261581B (en) | 2018-11-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711015446.1A Active CN108261581B (en) | 2017-10-26 | 2017-10-26 | Liquid-feeding pump system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108261581B (en) |
| WO (1) | WO2019080544A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108261581B (en) * | 2017-10-26 | 2018-11-13 | 江苏金塔药业有限公司 | Liquid-feeding pump system |
| CN110292678B (en) * | 2019-08-12 | 2021-05-18 | 河南科技大学第一附属医院 | Pulsating blood transfusion device |
| WO2021096899A1 (en) | 2019-11-12 | 2021-05-20 | Akwios Llc | Cassette assembly for ambulatory drug pump |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322961B2 (en) * | 2003-01-15 | 2008-01-29 | I-Flow Corporation | Seal assembly for elastomeric infusion pump |
| US8162923B2 (en) * | 2006-09-06 | 2012-04-24 | Calibra Medical, Inc. | Disposable infusion device with automatic unlocking mechanism |
| CN201743671U (en) * | 2010-07-22 | 2011-02-16 | 王桂龙 | Integral invasive pressure monitoring sensor |
| CN101987214B (en) * | 2010-12-15 | 2012-08-01 | 广东康尔美医疗器械有限公司 | Automatic infusion apparatus |
| CN102755677A (en) * | 2012-06-21 | 2012-10-31 | 浙江润强医疗器械股份有限公司 | Medicine feeding device for preventing liquid medicine from reversely flowing |
| CN202802176U (en) * | 2012-09-29 | 2013-03-20 | 广州军区广州总医院 | Tension venous transfusion liquid bag |
| US20140155829A1 (en) * | 2012-11-30 | 2014-06-05 | Seik Oh | Disposable ambulatory infusion pump having telescopic housing |
| CN102935252A (en) * | 2012-11-30 | 2013-02-20 | 广东康尔美医疗器械有限公司 | Balloon type automatic infusion device |
| CN104001231B (en) * | 2014-05-15 | 2015-05-27 | 上海金塔医用器材有限公司 | Safety pump remaining needle |
| CN206167519U (en) * | 2016-08-01 | 2017-05-17 | 北京臻惠康生物科技有限公司 | Special infusion pump of stem cell |
| CN106267446B (en) * | 2016-09-05 | 2019-07-19 | 南通安诺医疗科技有限公司 | Safe medicine injecting pump adapted liquid bag |
| CN206443979U (en) * | 2016-10-13 | 2017-08-29 | 南京宁创医疗设备有限公司 | Disposable infusion pump |
| CN108261581B (en) * | 2017-10-26 | 2018-11-13 | 江苏金塔药业有限公司 | Liquid-feeding pump system |
-
2017
- 2017-10-26 CN CN201711015446.1A patent/CN108261581B/en active Active
-
2018
- 2018-07-12 WO PCT/CN2018/095361 patent/WO2019080544A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019080544A1 (en) | 2019-05-02 |
| CN108261581A (en) | 2018-07-10 |
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Effective date of registration: 20230322 Address after: Jinshan District Fengjing town Shanghai city 201502 Jianding Road No. 18 Patentee after: SHANGHAI JINTA MEDICAL Co.,Ltd. Address before: No.20, Dongqu Road, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU JINTA PHARMACEUTICAL Co.,Ltd. |