CN205360152U - A fluid infusion device for being directed at patient doses - Google Patents
A fluid infusion device for being directed at patient doses Download PDFInfo
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- CN205360152U CN205360152U CN201521095950.3U CN201521095950U CN205360152U CN 205360152 U CN205360152 U CN 205360152U CN 201521095950 U CN201521095950 U CN 201521095950U CN 205360152 U CN205360152 U CN 205360152U
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- injection mechanism
- supply chamber
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Abstract
The utility model provides a fluid infusion device for being directed at patient doses, include: injection mechanism, fluid transport passageway, adapting unit and cavity impale the part. Cavity impale the part with injection mechanism fixed connection and its hollow portion communicate with the stock solution chamber of injection mechanism, and this cavity impales the part and configures into: in running through adapting unit's supply chamber under the promotion of injection mechanism and stretching into the fluid transport passageway so that the piston of stock solution intracavity can with the fluid of stock solution intracavity is displaced in the fluid transport passageway, and return under of the draging of injection mechanism the supply intracavity is in order to incite somebody to action the supply chamber with stock solution chamber intercommunication so that can with leading -in the arriving of fluid of supply intracavity in the stock solution chamber. According to the utility model discloses a fluid infusion device, the process that sets up of infusion volume is simplified to the process of the volume of setting up the infusion in the time of can avoiding the per injection.
Description
Technical field
This utility model relates to field of fluid, in particular to a kind of fluid infusion apparatus for patient is administered being capable of bolus quantities injection.
Background technology
Diabetes are a kind of metabolic diseases being feature with hyperglycemia.Hyperglycemia is typically due to defect of insulin secretion or its biological agent is impaired, or both comprehensive functions cause.In diabetics body, long-standing hyperglycemia can cause the chronic lesion of multiple organ (such as, eye, kidney, heart, blood vessel, nervous system etc.), dysfunction.
Diabetes clinical diagnosis can be divided into type 1 diabetes and type 2 diabetes mellitus.Type 1 diabetes, also referred to as insulin dependent diabetes mellitus (IDDM), patient condition typically occurs in child or adolescent's period, is a kind of disease by congenital Inheritance.Type 1 diabetes belongs to a kind of autoimmune disease, and the β cell of internal production insulin is made attack by the immune system of health, ultimately results in and internal cannot produce insulin.Blood sugar level in the islets of langerhans usually control volume of this kind of needs of patients injection of exogenous.Type 1 diabetes patient is it is generally required to 24 hours carrying electronic formula insulin pump in treatments, for instance, Medtronic Minimed series insulin pump.Type 2 diabetes mellitus, also referred to as non-insulin-dependent diabetes mellitus, general patient is adult, particularly obese people, and its disease can cause becoming thin.The possible cause of disease includes: insulin resistant, makes health can not be efficiently used insulin；The minimizing of insulin secretion, it is impossible to needed for meeting health.The type 2 diabetes mellitus patient of early stage mode (such as, health diet, moderate exercise, safe fat-reducing, give up smoking and avoid second hand smoking etc.) of can passing through to make the life better controls, and even cures diabetes.Most of type 2 diabetes mellitus patients can pass through oral antidiabetic drug and help control health blood sugar level or control blood sugar level by interim insulin injection.
Current Most patients adopts novopen syringe insulin injection.Novopen has the structure of similar pen, including a body, penholder and cap three part, before insulin injection, it is necessary to supporting insulin pen-cartridge is installed in penholder, then rotate and regulate button, by the mobile control injection volume of screw rod, then press injection button, complete injection by screw drive pen core, say, that, existing novopen needs the amount of movement of each manual adjustments screw rod to control infusion amount, and setting up procedure is complex.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of fluid infusion apparatus for patient is administered, it is possible to simplify the setting up procedure of infusion amount.
What this utility model embodiment provided comprises the steps that injection mechanism, outlet fluid, connection member and hollow penetrating member for the fluid infusion apparatus that patient is administered.
Described injection mechanism can have the liquid storage cylinder that can receive the fluid treating infusion and in this liquid storage cylinder moveable piston.This liquid storage cylinder can be variously-shaped.In embodiments more of the present utility model, liquid storage cylinder is cylindric.The infusion fluid of liquid storage cylinder storage could be for the various liquid etc. that patient is administered.In embodiments more of the present utility model, fluid can be the therapeutic fluid medicine of such as insulin etc.Piston movement in liquid storage cylinder can make fluid discharge in liquid storage cylinder, or draws fluid into liquid storage cylinder.
Described outlet fluid can be used for fluid is exported patient.In embodiments more of the present utility model, outlet fluid can include the flexible pipe etc. for exporting fluid to patient.
Described connection member is attached between injection mechanism and outlet fluid, and this connection member can have the supply chamber holding fluid.
Described hollow penetrating member can fixing with described injection mechanism be connected and its hollow space connects with described liquid storage cylinder, this hollow penetrating member is configured to: runs through described supply chamber under the promotion of described injection mechanism and puts in so that the fluid in described liquid storage cylinder can be displaced in described outlet fluid by described piston in described outlet fluid, and returns to described supply intracavity under the dragging of described injection mechanism to be connected with described liquid storage cylinder in described supply chamber so that can be imported in described liquid storage cylinder by the fluid of described supply intracavity.Hollow penetrating member, for instance, it is possible to it is the pin with hollow structure.In embodiments more of the present utility model, this hollow penetrating member can be the draw point of hollow.
In embodiments more of the present utility model, described injection mechanism may also include that trigger unit, it is connected with described piston, this trigger unit is configured to be pressed so that described injection mechanism promotes described hollow penetrating member run through described supply chamber and put in described outlet fluid, and, described trigger unit is further configured to be pressed when described hollow penetrating member puts in described outlet fluid, so that the piston of described injection mechanism moves to be displaced in described outlet fluid by the fluid in this liquid storage cylinder in described liquid storage cylinder.In some embodiments, described trigger unit can be the form of trigger button.Trigger unit can pass through injection putter piston moveable with in liquid storage cylinder and be connected, or by structures such as push rods, direct piston moveable with in liquid storage cylinder is not connected.
In embodiments more of the present utility model, described injection mechanism may also include that back-off component, it is connected with described liquid storage cylinder, is configured to make described liquid storage cylinder return back to the state connected with described supply chamber by described hollow penetrating member under the d/d situation of described trigger unit.
In embodiments more of the present utility model, described device may also include that full parts, it is connected with described injection mechanism, is configured to when described supply chamber is connected with described liquid storage cylinder by described hollow penetrating member and moves described piston so that being imported in described liquid storage cylinder by the fluid of described supply intracavity by described hollow penetrating member.
In embodiments more of the present utility model, fluid infusion apparatus of the present utility model may also include that shell, for partly receiving described injection mechanism and described connection member.
In embodiments more of the present utility model, described supply chamber includes first end and is positioned at second of first end offside, wherein, described hollow penetrating member passes described first end makes described supply chamber connect with described liquid storage cylinder, and described hollow penetrating member passes described the second end under the promotion of described injection mechanism and puts in described outlet fluid.
In embodiments more of the present utility model, region outside described first end with the second end, the described supply chamber has the first hole connected with fluid inlet channel.
In embodiments more of the present utility model, described shell can be able in the region corresponding with described first hole to be opened.
In embodiments more of the present utility model, described shell can be opening in the region corresponding with described first hole.
In embodiments more of the present utility model, region outside described first end and described the second end, the described supply chamber has the first opening and covers the first diaphragm seal of this first opening.
In embodiments more of the present utility model, described first end can be formed by the sealing member that can be pierced through by described hollow penetrating member.
In embodiments more of the present utility model, described the second end can be formed by the separator that can be pierced through by described hollow penetrating member.
In embodiments more of the present utility model, described outlet fluid includes the cap portion covering described the second end, and this cap portion has the second hole for exporting fluid.
In embodiments more of the present utility model, described cap portion also has the second opening and covers the second diaphragm seal of this second opening.
Implement the fluid infusion apparatus for patient is administered that this utility model embodiment provides, it is possible to the fluid of per injection fixed qty, it is to avoid arranging the complicated process of infusion amount during fluid infusion, what simplify fluid infusion amount arranges program every time.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the fluid infusion apparatus for patient is administered according to a kind of embodiment of this utility model；
Fig. 2 is the decomposition view of the fluid infusion apparatus for patient is administered shown in Fig. 1；
Fig. 3 is the schematic cross-section along the confined state of fluid infusion apparatus for patient is administered intercepted of the line A-A in Fig. 1；
Fig. 4 is the working state schematic representation of the fluid infusion apparatus for patient is administered according to a kind of embodiment of this utility model.
nullWherein，Fluid infusion apparatus-10，Outlet fluid-100，Injection mechanism-101，Liquid storage cylinder-1011，Injection shell-1012，Trigger unit-102，Contact site-1021，Extension-1022，Junction surface-1023，Connection member-103，First end-1031，The second end-1032，Pars intermedia-1033，Supply chamber-1034，The opening-1035 of connection member，The hole-1036 of connection member，Cover the diaphragm seal-1037 of the opening of connection member，Hollow penetrating member-104，Injection putter-105，Block-1051，Piston-106，Back-off component-107，Full parts-108，Shell-109，Cap portion-1091，Opening-1092 in cap portion，Hole-1093 in cap portion，The diaphragm seal-1094 of the opening in covering cap portion.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, this utility model is described in further detail.It should be noted that embodiment of the present utility model is not limited to parts shown in the drawings structure and/or arranges, when without departing from this utility model essence, it is also possible to various embodiments of the present utility model are carried out various different combination.
The detailed description of the invention of the fluid infusion apparatus for patient is administered of the present utility model is described below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of the fluid infusion apparatus for patient is administered according to a kind of embodiment of this utility model；Fig. 2 is the decomposition view of the fluid infusion apparatus for patient is administered shown in Fig. 1；Fig. 3 is the schematic cross-section along the confined state of fluid infusion apparatus for patient is administered intercepted of the line A-A in Fig. 1；Fig. 4 is the working state schematic representation of the fluid infusion apparatus for patient is administered according to a kind of embodiment of this utility model.
As shown in Figure 1 to Figure 3, the fluid infusion apparatus 10 for patient is administered can include outlet fluid 100, injection mechanism 101, connection member 103 and hollow penetrating member 104.Wherein, injection mechanism 101 can include liquid storage cylinder 1011 and piston 106, and connection member 103 can include supply chamber 1034.Connection member 103 is connected between outlet fluid 100 and injection mechanism 101, and hollow penetrating member 104 and injection mechanism 101 be fixing to be connected and its hollow space connects with the liquid storage cylinder 1011 of injection mechanism 101.When fluid exports, hollow penetrating member 104 can run through supply chamber 1034 under the promotion of injection mechanism, and stretches into outlet fluid 100, in order to the fluid in liquid storage cylinder is displaced outlet fluid by mobile piston 106.When fluid feeds, hollow penetrating member 104 returns in supply chamber 1034 so that the fluid in supply chamber 1034 is sucked liquid storage cylinder 1011 under the dragging of injection mechanism.
Below in conjunction with accompanying drawing, all parts of device of the present utility model is described.
Injection mechanism 101 can have injection shell 1012, piston 106 and the liquid storage cylinder 1011 limited by cavity and the piston 106 of injection shell 1012, and liquid storage cylinder 1011 can store the fluid of predetermined quantity, and piston 106 can move in liquid storage cylinder 1011.In embodiment shown in Fig. 2 and Fig. 3, liquid storage cylinder 1011 is cylinder chamber, but in other embodiments, liquid storage cylinder can be other shapes.Although in the embodiments shown in the drawings, liquid storage cylinder is to be limited by injection shell and piston and formed, but in other embodiments, liquid storage cylinder can be fix the independent parts being connected with injection shell.
In some embodiments, injection mechanism 101 may also include trigger unit 102.Trigger unit 102 can include contact site 1021, the junction surface 1023 of the extension 1022 extended from the right side (observing from the page towards Fig. 2) of this contact site 1021 and right side (observing from the page towards Fig. 2) side being arranged on this extension 1022.The contact site 1021 that surface area is bigger may be used for the active force outside acceptance, for instance, from the active force of infusion operator.Junction surface 1023 can be used for engaging injection putter 105, and one end of injection putter 105 engages with the junction surface 1023 of trigger unit 102, and other end piston 106 moveable with in liquid storage cylinder 1011 engages.The position engaged with injection mechanism 101 at injection putter 105 is additionally provided with block 1051, spacing effect can be played, such as, when fluid feeds, it is possible to prevent full parts 108 that upwards injection putter 105 and piston 106 (are observed) lift excessively from towards the direction shown in Fig. 3, thus impact is fed to the quantity of the fluid of liquid storage cylinder.Although in the illustrated embodiment, trigger unit is to be attached by injection putter and piston, but in other modes, for instance, when piston is plunger, trigger unit can not pass through injection putter and be connected with piston, but is directly connected to plunger.
Connection member 103 can include supply chamber 1034, and this supply chamber 1034 is by first end 1031, defines at the second end 1032 of first end 1031 offside and the pars intermedia 1033 between first end 1031 and the second end 1032.Supply chamber 1034 can hold the fluid identical with the fluid in liquid storage cylinder 1011, when liquid storage cylinder 1011 empties, feeds fluid to liquid storage cylinder.Hollow penetrating member 104 can pass the first end 1031 in supply chamber and keep connecting with liquid storage cylinder 1011, hollow penetrating member passes the second end 1032 in supply chamber under the promotion of injection mechanism and puts in outlet fluid (when such as, trigger unit is pressed).
In embodiments more of the present utility model, supply region outside first end 1031 with the second end 1032, the chamber 1034 also can arrange the hole that connects with fluid inlet channel (such as, hole 1036 shown in Fig. 3), fluid in supply chamber 1034 is fed to liquid storage cylinder 1011 simultaneously or after, it is possible to again feed fluid via hole 1036 to supply chamber 1034.In conjunction with Fig. 2 and Fig. 3 it can be seen that hole 1036 is arranged on the part scabbled of the bottom (observing from towards the page shown in Fig. 2) of pars intermedia 1033.
Supply region outside first end 1031 and the second end 1032, the chamber 1034 can also arrange opening (such as, opening 1035 shown in Fig. 2) and cover the diaphragm seal of this opening, the fluid in supply chamber and inside thereof can be carried out sterilizing etc. by this opening.Opening 1035 can cover diaphragm seal 1037, for instance, it is possible to the diaphragm seal 1037 being made up of macromolecular material etc..This diaphragm seal does not allow the fluid in supply chamber to ooze out, but allows the material (such as, gas etc.) that the fluid in supply chamber and inside thereof carries out sterilizing to penetrate into.
Although at the embodiment shown in Fig. 3, it is provided with 1 hole (hole 1036) for supply chamber 1034, but in other embodiments, the quantity in the hole in supply chamber 1034 can be 2,3,4 or more, and arranging position can be outside first end and the second end and any position not overlapped with the opening for sterilizing.
In embodiments more of the present utility model, first end 1031 can by can by hollow penetrating member (such as, the draw point of hollow) the 104 sealing members formation pierced through, such as, such as rubber, silica gel etc can be pierced through by hollow penetrating member and can also seal supply chamber 1034 end, make the fluid in supply chamber 1034 not with the seal member of extraneous contact.In other embodiment, first end 1031 can form with pars intermedia 1033, as the end wall of one end of pars intermedia 1033.
In embodiments more of the present utility model, the second end 1032 can be formed by the separator that can be pierced through by hollow penetrating member 104, such as, the isolated part that can repeatedly be pierced through by hollow penetrating member and the end in supply chamber 1034 can also be isolated from the outside of such as rubber, silica gel etc.In other embodiment, the second end 1032 can form with pars intermedia 1033, as the end wall of one end of pars intermedia 1033.
In embodiments more of the present utility model, first end 1031 and the second end 1032 can use same kind of rubber to be formed, it is fabricated to identical, similar or different shapes, in other embodiment, first end and the second end can be made of different types of materials, and are fabricated to identical, similar or different shapes.When the fluid of infusion is curative fluid, first end and the second end are formed preferably by the other rubber of medical grade.
The fluid of storage predetermined quantity in original state, the liquid storage cylinder 1011 of injection mechanism 101, this fluid is incompressible.When pressing trigger unit 102, injection mechanism 101 downward (observing from the direction towards Fig. 3) is mobile, the hollow penetrating member 104 being secured to connect is promoted to move downwardly together, after hollow penetrating member 104 moves down certain distance, pierce through the second end 1032 in supply chamber 1034 and put in outlet fluid, it is possible to patient's conveyance fluid；Continue pressing trigger unit 102, now owing to hollow penetrating member 104 connects with outlet fluid, fluid in the liquid storage cylinder 1011 connected with hollow penetrating member 104 can be discharged, when continuing pressing trigger unit 102, hollow penetrating member 104 does not continue to move down, but make the piston 106 being connected with trigger unit 102 move down along liquid storage cylinder 1011, so that the fluid in liquid storage cylinder 1011 exports via hollow penetrating member 104 and outlet fluid, complete the infusion of fluid.
Use the fluid infusion of said apparatus of the present utility model, it is possible to exported by the fluid of the predetermined quantity in liquid storage cylinder once, and when needing to export greater number of fluid, it is possible to it is determined by the number of times of infusion.According to said apparatus of the present utility model, it is possible to the fluid of infusion fixed qty every time, it is to avoid the problem needing to arrange infusion quantity during infusion every time.
Injection mechanism 101 can also include back-off component 107, for instance, spring.Back-off component 107 can be connected with liquid storage cylinder 1011, for instance, may be provided at the outside of the cavity of injection shell, be centered around the outside of liquid storage cylinder 1011.Back-off component 107 can deform upon when trigger unit is pressed, when trigger unit 102 is released, back-off component 107 can return to the state before deformation, liquid storage cylinder 1011 is driven to return to the state that trigger unit 102 is not pressed while back-off component 107 recovers deformation, so that also returning to original state when trigger unit 102 is not pressed with the fixing hollow penetrating member 104 being connected of injection mechanism 101, that is, the state in connection liquid storage cylinder and supply chamber.In a kind of specific embodiment, back-off component 107 can be spring, but in other embodiment, back-off component can be that by the miscellaneous part making liquid storage cylinder restPose when trigger unit is released.
In embodiments more of the present utility model, device 10 may also include full parts 108.Full parts 108 can be connected with trigger unit 102, for instance, can engage with the junction surface 1023 of trigger unit 102.nullFull parts 108 deform upon when trigger unit 102 is pressed，The state before deformation is returned under the d/d situation of trigger unit 102，The piston 106 that the junction surface 1023 with trigger unit is connected can be driven while full parts 108 recover deformation to move along liquid storage cylinder 1011，Piston 106 is made to return to the original state that trigger unit is not pressed，Now feed chamber 1034 be connected with liquid storage cylinder 1011 by hollow penetrating member 104 owing to supply chamber 1034 being full of fluid，Return in the process of original state at piston 106，Owing to liquid storage cylinder 1011 is nearly at vacuum state，And feed and in chamber 1034, be full of fluid，Fluid in supply chamber 1034 can be drawn in liquid storage cylinder 1011 by the hollow penetrating member 104 connected with liquid storage cylinder 1011，Make the pressure balance in liquid storage cylinder 1011 and supply chamber 1034.Owing to piston returns to original state under the active force of full parts, then the fluid sucking liquid storage cylinder is identical with the amount of fluid of original state storage in liquid storage cylinder.In a kind of specific embodiment, full parts 108 can be spring.In some other embodiment, full parts can also is that and piston can be made when trigger unit is released to return to the miscellaneous part of state when trigger unit is not pressed along liquid storage cylinder.
In embodiments more of the present utility model, device 10 can not include full parts.In such embodiment, when discharging trigger unit, the fluid in supply chamber has enough pressure, piston 106 is made to move to return to the original state that trigger unit is not pressed along liquid storage cylinder, in the process that piston 106 recovers, the fluid in supply chamber can be drawn in liquid storage cylinder by the hollow penetrating member connected with liquid storage cylinder in supply chamber, completes the fluid to liquid storage cylinder and feeds.
In embodiments more of the present utility model, device 10 may also include shell 109.Shell 109 can partly receive injection mechanism 101 and connection member 103, for instance, a part for injection mechanism and the whole of connection member can be received.Shell 109 is able in the region corresponding with the hole 1036 of connection member 103 to be opened, say, that shell 109 has, in the region of hole 1036 correspondence, the opening that can open or close.In a kind of specific embodiment, shell 109 is opening in the region corresponding with hole 1036.
In some embodiments, outlet fluid can include the cap portion 1091 covering the second end 1032 in supply chamber 1034, and this cap portion has the hole 1093 for exporting fluid.Hollow penetrating member 104, after running through supply chamber 1034, can put in the cap portion 1091 of outlet fluid.After flowing into cap portion 1091 via the fluid of hollow penetrating member 104 output, export medicine-feeding part by the hole 1093 in cap portion 1091.In the embodiment shown in Fig. 3, cap portion 1091 is provided with 1 hole, but in some other embodiment, it is possible to 2,3,4 or more hole are set, are separately positioned on multiple positions in cap portion.Cap portion 1091 also can have opening (such as, opening 1092) and cover the diaphragm seal of this opening, the position of this opening does not overlap with the position in hole 1093, the fluid of the space between the second end 1032 and cap portion 1091 and inside thereof can be carried out sterilizing by this opening.Opening 1092 can cover diaphragm seal 1094, for instance, it is possible to the diaphragm seal 1094 being made up of macromolecular material etc..This diaphragm seal does not allow the fluid of inside to ooze out, but allows the material (such as, gas etc.) that internal fluid carries out sterilizing to penetrate into.
It follows that in conjunction with accompanying drawing 4, describe a kind of duty of the fluid infusion apparatus 10 for patient is administered of the present utility model.
In Fig. 4 1. shown in, the fluid of storage fixed qty in liquid storage cylinder 1011, the back-off component 107 of injection mechanism is (such as, spring) and full parts 108 are (such as, spring) it is in free state, along the trigger unit 102 of the direction pressing injection mechanism shown in the 1. middle arrow in Fig. 4, back-off component 107 and full parts 108 are compressed；Hollow penetrating member 104 moves down under injection mechanism promotes, until hollow penetrating member 104 runs through the second end 1032 in supply chamber 1034, and gos deep into outlet fluid, in Fig. 4 2. shown in；Pressing trigger unit 102 is continued when hollow penetrating member puts in outlet fluid, trigger unit 102 drives piston 106 to move down along liquid storage cylinder 1011, fluid in liquid storage cylinder 1011 is exported outlet fluid via hollow penetrating member 104, until emptying, in Fig. 4 3. shown in；After fluid evacuation in liquid storage cylinder 1011, release trigger unit 102, back-off component 107 drives liquid storage cylinder 1011 to return to the original state that trigger unit 102 is not pressed, drive simultaneously and return original state with the fixing hollow penetrating member 107 being connected of injection mechanism 101, return in supply chamber 1034, connection supply chamber and liquid storage cylinder, in Fig. 4 4. shown in；Then, now, supply chamber is connected by hollow penetrating member with liquid storage cylinder, under the active force of full parts 108, along with piston 106 moves upward along liquid storage cylinder 1011, hollow penetrating member 104 will supply chamber 1034 in fluid suck liquid storage cylinder 1011, make liquid storage cylinder 1011 refill fluid, in Fig. 4 5. shown in.
According to fluid infusion apparatus of the present utility model, it is possible to avoid per injection to arrange the process of infusion amount, simplify the injection process of fluid injection (such as, particularly large bolus injection).
It should be noted that, the fluid infusion apparatus that this utility model provides can be used alone as the injection device of large bolus injection, can also being combined with the injection device injected for basic crack, composition can carry out large bolus injection and can carry out again the comprehensive fluid injector of basic crack injection.
It should be noted that; although each side of said apparatus is to arrange with specific structure in a specific sequence to be described; but this is only used for illustrating, this utility model is not intended that restriction, and the claimed theme of this utility model is not limited to described order and structure is arranged.It will be appreciated by those skilled in the art that without departing from this utility model essence when, it is possible to utility model is made various amendment and deformation, and equivalent replacement can be carried out.Therefore, the claimed theme of this utility model is not limited to detailed description of the invention disclosed above, may also include all technical schemes falling into claims and technical scheme equivalent with it.Additionally, in the claims, except as otherwise noted, all of term should be understood by the broadest rational meaning.
Claims (14)
1. the fluid infusion apparatus for patient is administered, it is characterised in that this device includes:
Injection mechanism, including holding the liquid storage cylinder treating infusion fluid of scheduled volume and the piston that can move in this liquid storage cylinder；
Outlet fluid, for exporting patient by fluid；
Connection member, is connected between described injection mechanism and described outlet fluid, and this connection member has the supply chamber holding fluid；
Hollow penetrating member, fixing with described injection mechanism it is connected and its hollow space connects with described liquid storage cylinder, this hollow penetrating member is configured to: runs through described supply chamber under the promotion of described injection mechanism and puts in so that the fluid in described liquid storage cylinder can be displaced in described outlet fluid by described piston in described outlet fluid, and returns to described supply intracavity under the dragging of described injection mechanism to be connected with described liquid storage cylinder in described supply chamber so that can be imported in described liquid storage cylinder by the fluid of described supply intracavity.
2. device according to claim 1, it is characterised in that described injection mechanism also includes:
Trigger unit, is connected with described piston, and this trigger unit is configured to be pressed so that described injection mechanism promotes described hollow penetrating member run through described supply chamber and put in described outlet fluid,
And, described trigger unit is further configured to be pressed when described hollow penetrating member puts in described outlet fluid, so that the piston of described injection mechanism moves to be displaced in described outlet fluid by the fluid in this liquid storage cylinder in described liquid storage cylinder.
3. device according to claim 2, it is characterized in that, described injection mechanism also includes: back-off component, it is connected with described liquid storage cylinder, is configured to make described liquid storage cylinder return back to the state connected with described supply chamber by described hollow penetrating member under the d/d situation of described trigger unit.
4. device according to claim 3, it is characterised in that described device also includes:
Full parts, it is connected with described injection mechanism, is configured to when described supply chamber is connected with described liquid storage cylinder by described hollow penetrating member and moves described piston so that being imported in described liquid storage cylinder by the fluid of described supply intracavity by described hollow penetrating member.
5. device according to claim 1, it is characterised in that described device also includes:
Shell, for partly receiving described injection mechanism and described connection member.
6. device according to claim 5, it is characterized in that, described supply chamber includes first end and is positioned at the second end of first end offside, wherein, described hollow penetrating member passes described first end makes described supply chamber connect with described liquid storage cylinder, and described hollow penetrating member passes described the second end under the promotion of described injection mechanism and puts in described outlet fluid.
7. device according to claim 6, it is characterised in that region outside described first end with the second end, the described supply chamber has the first hole connected with fluid inlet channel.
8. device according to claim 7, it is characterised in that described shell is able in the region corresponding with described first hole to be opened.
9. device according to claim 8, it is characterised in that described shell is opening in the region corresponding with described first hole.
10. device according to claim 6, it is characterised in that region outside described first end and described the second end, the described supply chamber has the first opening and covers the first diaphragm seal of this first opening.
11. according to the device that claim 6 is stated, it is characterised in that described first end is to be formed by the sealing member that can be pierced through by described hollow penetrating member.
12. device according to claim 6, it is characterised in that described the second end is to be formed by the separator that can be pierced through by described hollow penetrating member.
13. device according to claim 6, it is characterised in that described outlet fluid includes the cap portion covering described the second end, this cap portion has the second hole for exporting fluid.
14. device according to claim 13, it is characterised in that described cap portion also has the second opening and covers the second diaphragm seal of this second opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095950.3U CN205360152U (en) | 2015-12-23 | 2015-12-23 | A fluid infusion device for being directed at patient doses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095950.3U CN205360152U (en) | 2015-12-23 | 2015-12-23 | A fluid infusion device for being directed at patient doses |
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| Publication Number | Publication Date |
|---|---|
| CN205360152U true CN205360152U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521095950.3U Expired - Fee Related CN205360152U (en) | 2015-12-23 | 2015-12-23 | A fluid infusion device for being directed at patient doses |
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| CN (1) | CN205360152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902420A (en) * | 2015-12-23 | 2017-06-30 | 美敦力公司 | For the fluid infusion apparatus being administered to patient |
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- 2015-12-23 CN CN201521095950.3U patent/CN205360152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902420A (en) * | 2015-12-23 | 2017-06-30 | 美敦力公司 | For the fluid infusion apparatus being administered to patient |
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