CN213100021U - Circular bimorph piezoelectric drive formula infusion set - Google Patents
Circular bimorph piezoelectric drive formula infusion set Download PDFInfo
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- CN213100021U CN213100021U CN202020749119.XU CN202020749119U CN213100021U CN 213100021 U CN213100021 U CN 213100021U CN 202020749119 U CN202020749119 U CN 202020749119U CN 213100021 U CN213100021 U CN 213100021U
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Abstract
The utility model discloses a circular bimorph piezoelectric drive formula infusion set, including base, chamber board, upper end cover, piezoelectric vibrator, sealing washer, umbrella-type valve, anther sac, gas-supply pipe and transfer line, base, chamber board and upper end cover constitute the infusion power take off source through bolt fixed connection, the top of upper end cover is fixedly connected with the bag chamber that is used for placing the anther sac, be provided with air cavity and sap cavity in the anther sac, fixedly connected with the gas-supply pipe on the venthole of upper end cover, the one end that the venthole was kept away from to the gas-supply pipe is fixedly connected on the air cavity, fixedly connected with the transfer line on the sap cavity, be provided with flow valve and syringe needle on the transfer line; the utility model discloses a three chamber series connection piezoelectric pump and bimorph piezoelectric vibrator can further improve the driving force, and the method through the compression of the three chamber series connection gas piezoelectric pump compressed gas of bimorph can quantitative output gas pressure, and control infusion speed need not cable suspension device, the structure is simpler, conveniently removes and carries.
Description
Technical Field
The utility model relates to the field of micro medical machinery, in particular to a circular bimorph piezoelectric driving type infusion device.
Background
The existing injection administration modes mainly comprise intravenous injection, intramuscular injection, subcutaneous injection and the like, the intravenous infusion is a commonly used administration mode in clinical treatment, most of the existing infusion devices are composed of infusion bottles, infusion tubes and infusion supports, the infusion bottles are hung on the infusion supports, flow by the self weight of liquid medicine and are injected into blood vessels of people through the infusion tubes, the infusion speed needs to be controlled by nursing staff and a hand-operated control valve in the infusion process, although a plurality of infusion devices can complete the control of flow rate and precision, the infusion is still carried out by the self weight of the liquid medicine, the infusion devices need to sit up for a long time in practical application, are inconvenient to move, need to lift the infusion bottles by other people when walking or going to a toilet, can cause blood backflow due to improper operation, have different intravenous infusion speeds according to different physique of patients and sometimes shorten the time of the drug infusion, it also causes many medical problems by reducing the amount of solution and increasing the infusion speed.
In response to the above problems, an improved circular bimorph piezoelectric driven infusion device is now devised.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circular bimorph piezoelectric drive formula infusion set to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a circular double-wafer piezoelectric driving type infusion device comprises a base, a cavity plate, an upper end cover, a piezoelectric vibrator, a sealing ring, an umbrella-shaped valve, a medicine bag, an air conveying pipe and an infusion pipe, wherein the base, the cavity plate and the upper end cover are fixedly connected through bolts to form an infusion power output source.
The top fixedly connected with of upper end cover is used for placing the bag chamber of anther sac, be provided with air cavity and sap cavity in the anther sac, fixedly connected with gas-supply pipe on the venthole of upper end cover, the one end fixed connection that the venthole was kept away from to the gas-supply pipe is on the air cavity, fixedly connected with transfer line on the sap cavity, be provided with flow valve and syringe needle on the transfer line.
As a further aspect of the present invention: the top of the base is provided with a cavity a0 and a cavity a1, the bottom end of the cavity plate is provided with a compression cavity b0 matched with the cavity a0 for use, the bottom end of the cavity plate is further provided with a compression cavity b1 matched with the cavity a1 for use, the upper ends of the side walls of the cavity a0, the cavity a1, the compression cavity b0 and the compression cavity b1 are respectively bonded with a sealing ring, a piezoelectric vibrator is arranged between the cavity a0 and the compression cavity b0 and bonded on the sealing ring, a piezoelectric vibrator is also arranged between the cavity a1 and the compression cavity b1 and bonded on the sealing ring, an air inlet hole c11 and an air outlet c21 are formed in the compression cavity b0, an umbrella-shaped valve for controlling the passage of gas is fixedly connected to the air inlet hole c11, an air inlet hole c31 and an air outlet c41 are formed in the compression cavity b1, and an umbrella-shaped valve for controlling the passage of gas is fixedly connected to.
As a further aspect of the present invention: the air inlet hole c12 that admits air with the cooperation of air inlet hole c11 is seted up at the top of chamber board, the top of chamber board still is equipped with the venthole c42 of giving vent to anger with venthole c41 cooperation, compression chamber b2 has been seted up at the top of chamber board, fixedly connected with is used for the umbrella-shaped valve that control gas passes through on the venthole c42, set up the venthole c22 of giving vent to anger with venthole c21 cooperation in the compression chamber b2, still set up in the compression chamber b2 and intake hole c32 that intake hole c31 cooperation was admitted air, fixedly connected with is used for the umbrella-shaped valve that control gas passed through on the venthole c 22.
As a further aspect of the present invention: the bottom end of the upper end cover is provided with a cavity a2 matched with the compression cavity b2 for use, the upper ends of the side walls of the cavity a2 and the compression cavity b2 are both bonded with sealing rings, a piezoelectric vibrator is arranged between the cavity a2 and the compression cavity b2 and bonded on the sealing rings, the upper end cover is further provided with an air inlet hole matched with the air inlet hole c12 for air inlet, and the upper end cover is further provided with an air outlet hole matched with the air outlet hole c42 for air outlet.
As a further aspect of the present invention: and a sealing ring for keeping the sealing property is arranged between the air inlet hole c12 and the air inlet hole, and a sealing ring for keeping the sealing property is arranged between the air outlet hole c42 and the air outlet hole.
As a further aspect of the present invention: and a dust cover for preventing dust from entering is fixedly connected to the air inlet hole of the upper end cover.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses remedy current infusion equipment's not enough, adopt three chamber series connection piezoelectric pump and bimorph piezoelectric vibrator, can further improve the driving force, can quantitatively output gas pressure through the method of the three chamber series connection gas piezoelectric pump compressed gas compression of bimorph, control infusion speed need not cable suspension device, the structure is simpler, conveniently removes and carries.
Drawings
Fig. 1 is a schematic structural view of a circular bimorph piezoelectric-driven infusion device.
Fig. 2 is a structural schematic diagram of a circular bimorph piezoelectric-driven infusion device in a working state.
Fig. 3 is a schematic structural diagram of a piezoelectric vibrator of a circular bimorph piezoelectric driving type infusion device.
Fig. 4 is a schematic view of a base structure of a circular bimorph piezoelectric-driven infusion device.
Fig. 5 is a schematic structural view of an upper end cap of a circular bimorph piezoelectric-driven infusion device.
Fig. 6 is a schematic structural view of a cavity plate of a circular bimorph piezoelectric-driven infusion device.
Wherein: the device comprises a base 1, a cavity plate 2, an upper end cover 3, a piezoelectric vibrator 4, an elastic metal substrate 41, a piezoelectric ceramic piece 42, a sealing ring 5, an umbrella-shaped valve 6, a medicine bag 7, an air cavity 71, a liquid cavity 72, a gas pipe 8, a liquid conveying pipe 9 and a flow valve 91.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 6, in an embodiment of the present invention, a circular bimorph piezoelectric driving type infusion apparatus includes a base 1, a cavity plate 2, an upper end cap 3, a piezoelectric vibrator 4, a sealing ring 5, an umbrella valve 6, a medicine bag 7, a gas pipe 8 and an infusion tube 9, wherein the base 1, the cavity plate 2 and the upper end cap 3 are fixedly connected by bolts to form an infusion power output source.
The top fixedly connected with of upper end cover 3 is used for placing the bag chamber of anther sac 7, be provided with air cavity 71 and sap cavity 72 in the anther sac 7, fixedly connected with gas-supply pipe 8 on the venthole of upper end cover 3, the one end fixed connection that the venthole was kept away from to gas-supply pipe 8 is on air cavity 71, fixedly connected with transfer line 9 on the sap cavity 72, be provided with flow valve 91 and syringe needle on the transfer line 9.
The top of the base 1 is provided with a cavity a0 and a cavity a1, the bottom end of the cavity plate 2 is provided with a compression cavity b0 matched with the cavity a0 for use, the bottom end of the cavity plate 2 is further provided with a compression cavity b1 matched with the cavity a1 for use, the upper ends of the side walls of the cavity a0, the cavity a1, the compression cavity b0 and the compression cavity b1 are respectively bonded with a sealing ring 5, a piezoelectric vibrator 4 is arranged between the cavity a0 and the compression cavity b0, the piezoelectric vibrator 4 is bonded on the sealing ring 5, the sealing ring 5 is tightly connected with the piezoelectric vibrator 4 to maintain the tightness of the cavity a0 and the compression cavity b0, a piezoelectric vibrator 4 is also arranged between the cavity a1 and the compression cavity b1, the piezoelectric vibrator 4 is bonded on the sealing ring 5, the sealing ring 5 is tightly connected with the piezoelectric vibrator 4 to maintain the tightness of the cavity a1 and the compression cavity b1, and the compression cavity b0 is internally provided with an air inlet hole 11, an umbrella-shaped valve 6 used for controlling gas to pass through is fixedly connected to the gas inlet hole c11, a gas inlet hole c31 and a gas outlet hole c41 are formed in the compression cavity b1, and the umbrella-shaped valve 6 used for controlling gas to pass through is fixedly connected to the gas inlet hole c 31.
The air inlet hole c12 that admits air with the cooperation of air inlet hole c11 is seted up at the top of chamber board 2, the top of chamber board 2 still is equipped with the venthole c42 of giving vent to anger with venthole c41 cooperation, compression chamber b2 has been seted up at the top of chamber board 2, fixedly connected with is used for the umbrella-shaped valve 6 that control gas passes through on the venthole c42, set up the venthole c22 of giving vent to anger with venthole c21 cooperation in the compression chamber b2, still set up in the compression chamber b2 and admit air hole c32 with the cooperation of inlet hole c31, fixedly connected with umbrella-shaped valve 6 that is used for control gas to pass through on the venthole c 22.
The bottom end of the upper end cover 3 is provided with a cavity a2 matched with the compression cavity b2 for use, the upper ends of the side walls of the cavity a2 and the compression cavity b2 are both bonded with a sealing ring 5, a piezoelectric vibrator 4 is arranged between the cavity a2 and the compression cavity b2, the piezoelectric vibrator 4 is bonded on the sealing ring 5, the sealing ring 5 is tightly connected with the piezoelectric vibrator 4 to keep the tightness of the cavity a2 and the compression cavity b2, the upper end cover 3 is further provided with an air inlet hole matched with the air inlet hole c12 for air inlet, the sealing ring 5 keeping the tightness is arranged between the air inlet hole c12 and the air inlet hole, the upper end cover 3 is further provided with an air outlet hole matched with the air outlet hole c42 for air outlet, and the sealing ring 5 keeping the tightness is arranged between the air outlet hole c 42.
The piezoelectric vibrator 4 is formed by bonding an elastic metal plate 41 and a piezoelectric ceramic piece 42 by curing adhesive, electrodes are respectively led out of the elastic metal plate 41 and the piezoelectric ceramic piece 42 and are connected with a power supply, when voltage is applied, the piezoelectric vibrator 4 deforms to change the pressure intensity of gas in a compression cavity, so that low-pressure gas is sucked from the outside through an upper air inlet, high-pressure gas is pressed into a gas cavity 71 from the upper air outlet through an air pipe 8, the gas cavity 71 expands and compresses a liquid cavity 72, and the internal pressure of the liquid cavity 72 rises and liquid medicine is output.
The utility model discloses a theory of operation is: when the piezoelectric vibrator works, voltage is applied to the piezoelectric vibrator 4, in the first half period, gas in the compression cavity b0 and the compression cavity b1 is compressed, the umbrella-shaped valves 6 of the air inlet hole c11 and the air inlet hole c31 are pressed tightly, the umbrella-shaped valves 6 of the air outlet hole c22 and the air outlet hole c42 are pushed open by the gas, high-pressure gas enters the air cavity 71 of the medicine bag 7 through the air conveying pipe 8, the pressure in the air cavity 71 is increased, and liquid medicine in the liquid cavity 72 is pressed out through the liquid conveying pipe 9; and in the latter half period, the compression cavity b2 is compressed, the umbrella-shaped valves 6 of the air inlet hole c11 and the air inlet hole c31 are opened, air suction is started, and the umbrella-shaped valves 6 of the air outlet hole c22 and the air outlet hole c42 are pressed tightly, so that one period is completed.
Thus, the deflection of the piezoelectric vibrator 4 generated under the action of alternating current is changed alternately, the gas compressed step by step enters the air cavity 71 through the air outlet and the air pipe 8, the air cavity 71 expands and compresses the liquid cavity 72, and the internal pressure of the liquid cavity 72 rises and liquid medicine is output. The output of the liquid medicine can be adjusted by the driving voltage and the flow valve on the infusion tube.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A circular twin-chip piezoelectric driving type transfusion device comprises a base (1), a cavity plate (2), an upper end cover (3), a piezoelectric vibrator (4), a sealing ring (5), an umbrella-shaped valve (6), a medicine bag (7), a gas pipe (8) and a transfusion pipe (9), and is characterized in that the base (1), the cavity plate (2) and the upper end cover (3) are fixedly connected through bolts to form a transfusion power output source;
the top fixedly connected with of upper end cover (3) is used for placing the bag chamber of anther sac (7), be provided with air cavity (71) and sap cavity (72) in anther sac (7), fixedly connected with gas-supply pipe (8) on the venthole of upper end cover (3), the one end fixed connection that the venthole was kept away from in gas-supply pipe (8) is on air cavity (71), fixedly connected with transfer line (9) on sap cavity (72), be provided with flow valve (91) and syringe needle on transfer line (9).
2. The circular bimorph piezoelectric-driven infusion device according to claim 1, wherein the top of the base (1) is provided with a cavity a0 and a cavity a1, the bottom end of the cavity plate (2) is provided with a compression cavity b0 matched with the cavity a0, the bottom end of the cavity plate (2) is further provided with a compression cavity b1 matched with the cavity a1, the upper ends of the side walls of the cavity a0, the cavity a1, the compression cavity b0 and the compression cavity b1 are all bonded with a sealing ring (5), a piezoelectric vibrator (4) is arranged between the cavity a0 and the compression cavity b0, the piezoelectric vibrator (4) is bonded on the sealing ring (5), a piezoelectric vibrator (4) is also arranged between the cavity a1 and the compression cavity b 1), the piezoelectric vibrator (4) is bonded on the sealing ring (5), the compression cavity b0 is internally provided with an air inlet hole c11 and an outlet hole c21, and an umbrella-shaped valve (6) for controlling the gas to pass through is fixedly connected to the inlet hole 11, an air inlet hole c31 and an air outlet hole c41 are formed in the compression cavity b1, and an umbrella-shaped valve (6) used for controlling air to pass through is fixedly connected to the air inlet hole c 31.
3. The circular bimorph piezoelectric-driven infusion set according to claim 1, wherein the top of the cavity plate (2) is provided with an air inlet hole c12 matched with the air inlet hole c11 for air inlet, the top of the cavity plate (2) is further provided with an air outlet hole c42 matched with the air outlet hole c41 for air outlet, the top of the cavity plate (2) is provided with a compression cavity b2, the air outlet hole c42 is fixedly connected with an umbrella-shaped valve (6) for controlling air to pass through, the compression cavity b2 is internally provided with an air outlet hole c22 matched with the air outlet hole c21 for air outlet, the compression cavity b2 is further provided with an air inlet hole c32 matched with the air inlet hole c31 for air inlet, and the air outlet hole c22 is fixedly connected with the umbrella-shaped valve (6) for controlling air to pass through.
4. The circular twin-chip piezoelectric driving type infusion device according to claim 2, wherein a cavity a2 used in cooperation with a compression cavity b2 is formed in the bottom end of the upper end cover (3), sealing rings (5) are bonded to the upper ends of the side walls of the cavity a2 and the compression cavity b2, a piezoelectric vibrator (4) is arranged between the cavity a2 and the compression cavity b2, the piezoelectric vibrator (4) is bonded to the sealing rings (5), an air inlet hole matched with the air inlet hole c12 for air intake is formed in the upper end cover (3), and an air outlet hole matched with the air outlet hole c42 for air outlet is formed in the upper end cover (3).
5. The piezoelectric driving infusion device with two circular wafers as claimed in claim 4, wherein a sealing ring (5) for maintaining the sealing property is arranged between the air inlet hole c12 and the air inlet hole, and a sealing ring (5) for maintaining the sealing property is arranged between the air outlet hole c42 and the air outlet hole.
6. The round bimorph piezoelectric driving infusion set according to claim 1, wherein a dust cover for preventing dust from entering is fixedly connected to the air inlet hole of the upper end cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020749119.XU CN213100021U (en) | 2020-05-09 | 2020-05-09 | Circular bimorph piezoelectric drive formula infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020749119.XU CN213100021U (en) | 2020-05-09 | 2020-05-09 | Circular bimorph piezoelectric drive formula infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213100021U true CN213100021U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020749119.XU Expired - Fee Related CN213100021U (en) | 2020-05-09 | 2020-05-09 | Circular bimorph piezoelectric drive formula infusion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213100021U (en) |
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2020
- 2020-05-09 CN CN202020749119.XU patent/CN213100021U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |