CN113134131A - Telescopic liquid medicine liquid supply device and application equipment thereof - Google Patents

Abstract

The invention relates to the technical field of liquid medicine injection, in particular to a telescopic liquid medicine supply device and application equipment thereof, the telescopic liquid medicine injection supply device comprises an injection pump and a liquid storage body, a closed liquid storage cavity for storing liquid medicine is arranged in the liquid storage body, the inlet end of the injection pump is communicated with the front end outlet of the liquid storage cavity, the rear end part in the liquid storage cavity is provided with a forward-protruding extrusion block, the liquid storage body is designed to be in a telescopic structure and is matched with the extrusion block, so that when the injection pump pumps the liquid in the liquid storage cavity, the rear end of the liquid storage body can be gradually compressed and drawn close to the front end along with the reduction of the liquid medicine in the liquid storage cavity, the volume of the liquid storage cavity is reduced, the extrusion block moves towards the front end of the liquid storage cavity along with the extrusion block, the liquid medicine can be filled in the liquid storage cavity all the time, and the liquid medicine in the liquid storage cavity can not deviate from the outlet of the liquid storage cavity due to the change of the posture of a patient, thereby ensuring no liquid medicine residue in the liquid storage cavity and further improving the stability and reliability of liquid medicine injection.

Description

Telescopic liquid medicine liquid supply device and application equipment thereof

Technical Field

The invention relates to the technical field of liquid medicine injection, in particular to a telescopic liquid medicine supply device and application equipment comprising the same.

Background

An insulin infusion device capable of simulating the pancreas of a normal human body to secrete insulin to the body of a diabetic patient appears on the market at present, the insulin infusion device needs to be carried on the body of the patient all day long and mainly comprises a control system, a liquid storage device, an infusion tube, an injector and the like, one end of the infusion tube is embedded in the abdomen, the hip, the outer side of the upper arm, the outer side of the thigh and other parts of the patient through an indwelling needle, the other end of the infusion tube is communicated with the injector, the liquid storage device filled with the insulin is communicated with the injector, the control system controls the injector to work according to needs, the injector pushes the insulin in the liquid storage device to enter the infusion tube, and finally the insulin is injected into the human body through the indwelling needle at the front end of the infusion tube;

the existing insulin infusion device generally adopts a push injection mode to supply liquid medicine, and has the structure that a piston is arranged in a liquid storage device, power acts on a piston rod, the piston rod and the piston on the piston synchronously run, and then the liquid medicine in the liquid storage device is pushed out by the piston, obviously, the piston rod needs to be adapted to the axial length of the liquid storage device, so that the capacity of the liquid storage device is increased, meanwhile, the piston rod is also lengthened, the overall structure of the infusion device has large volume, and the portability convenience, comfort and reliability are seriously damaged; however, the problem can be solved by adopting a liquid pump arranged at the front end to carry out liquid medicine infusion in a pumping mode; however, the liquid pump supplies the liquid medicine by pumping, and the phenomenon that the liquid medicine in the liquid reservoir cannot be pumped by the liquid pump is likely to occur, which is specifically represented as: only when the patient is in a standing posture, the liquid medicine stored in the liquid storage device can be completely extracted by the liquid pump, and when the patient is in other body positions, part of the liquid medicine in the liquid storage device flows to a position deviated from an outlet of the liquid storage device, so that the liquid medicine cannot be extracted by the liquid pump, and the phenomena of liquid medicine residue or bubble formation and the like are easy to occur;

not only the insulin infusion device, but also other infusion devices that deliver a liquid stored in a reservoir by a liquid pump, particularly those that are used next to the skin, such as analgesic injection devices, drip infusion devices, and the like, have such problems.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to ensure that the liquid medicine is pumped into a human body by a liquid pump, and the problem that the liquid medicine is remained or bubbles are mixed in a liquid storage device when a patient is in various body positions or in a motion state, the telescopic liquid medicine pumping device is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a telescopic liquid medicine injection supplies liquid device, includes the syringe pump and can follow the flexible stock solution body of axial, have inclosed stock solution chamber that is used for storing the liquid medicine in the stock solution, the inlet end of syringe pump and the front end export intercommunication in stock solution chamber, the rear end tip in the stock solution chamber has convex extrusion piece forward.

Be telescopic structure through the design with the stock solution body in this scheme, and cooperate with the extrusion piece, so that when the liquid of stock solution intracavity is got to the syringe pump, along with the reduction of stock solution intracavity liquid medicine, the rear end of the stock solution body can draw close to the front end compression gradually, stock solution cavity volume diminishes, the extrusion piece removes to the front end in stock solution chamber along with it, the liquid medicine can be full of the stock solution chamber all the time, so the liquid medicine in the stock solution chamber just can not appear the condition of skew stock solution chamber export because of the change of patient's gesture yet, thereby realize that the syringe pump can extract the liquid in the stock solution chamber all the time, and ensure that no liquid medicine remains in the stock solution chamber, and then promote the stability and the reliability of liquid medicine injection.

Further, at least one part of the liquid storage body is of a corrugated pipe structure.

Furthermore, the front end of the extrusion block is provided with a conical part, the front end of the liquid storage cavity is provided with a conical hole section, the conical part is matched with the conical hole section, and the inlet end of the injection pump is communicated with the middle part of the front end of the conical hole section; the taper hole section of stock solution chamber can play the effect of gathering liquid, and when remaining liquid medicine was all located the taper hole section in the stock solution intracavity, along with the extraction of syringe pump, the toper portion of extrusion piece can be with the liquid medicine in the taper hole section all extrude to the syringe pump.

Further, the extrusion block is fixed or integrally formed on the liquid storage body.

In order to facilitate the supplement of the liquid medicine into the liquid storage cavity, the first liquid supplement mode is as follows: and the tail end of the liquid storage body is provided with a liquid supplementing channel, and the liquid supplementing channel penetrates through the extrusion block and is communicated with the liquid storage cavity.

Furthermore, a one-way valve is arranged in the liquid supplementing channel.

In order to facilitate the supplement of the liquid medicine into the liquid storage cavity, the second liquid supplement mode is as follows: the front end of the liquid storage body is provided with a liquid supplementing port which is communicated with the liquid storage cavity.

Further, a one-way valve is arranged in the fluid infusion port.

Furthermore, a plug is detachably plugged at the liquid supplementing opening.

Further, the injection pump is an electromagnetic pump or a piezoelectric pump.

The invention also provides insulin injection equipment which comprises the telescopic liquid medicine injection and supply device.

The invention also provides portable analgesic liquid medicine injection equipment which comprises the telescopic liquid medicine injection and supply device.

The invention also provides portable liquid medicine drip injection equipment which comprises the telescopic liquid medicine injection and supply device.

The invention has the beneficial effects that: according to the telescopic liquid medicine injection liquid supply device, the liquid storage body is designed to be in a telescopic structure and is matched with the extrusion block, so that when the liquid in the liquid storage cavity is pumped by the injection pump, along with the reduction of the liquid medicine in the liquid storage cavity, the rear end of the liquid storage body can be gradually compressed and drawn close to the front end, the volume of the liquid storage cavity is reduced, the extrusion block moves towards the front end of the liquid storage cavity along with the liquid storage cavity, the liquid medicine can be filled in the liquid storage cavity all the time, the liquid medicine in the liquid storage cavity cannot deviate from the outlet of the liquid storage cavity due to the change of the posture of a patient, the liquid in the liquid storage cavity can be pumped by the injection pump all the time, the liquid medicine does not remain in the liquid storage cavity, and the stability and the reliability of liquid medicine injection are further improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a telescopic liquid medicine injection and supply device in embodiment 1 of the present invention;

FIG. 2 is a schematic view of the telescopic liquid medicine injection and supply device according to embodiment 1 of the present invention after the liquid medicine therein is completely supplied;

FIG. 3 is a schematic view of a telescopic liquid medicine injection and supply device inembodiment 2 of the present invention;

FIG. 4 is a schematic view of a telescopic liquid medicine injection and supply device inembodiment 3 of the present invention

In the figure: 1. injection pump, 2, stock solution body, 201, stock solution chamber, 2011, taper hole section, 3, extrusion piece, 301, toper portion, 4, fluid infusion passageway, 5, check valve, 6, fluid infusion mouth, 7, end cap.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

Example 1

As shown in fig. 1 and 2, a telescopic liquid medicine injection and supply device includes a syringe pump 1 and aliquid storage body 2 capable of extending and retracting along an axial direction, aliquid storage cavity 201 for storing liquid medicine is provided in theliquid storage body 2, an inlet end of the syringe pump 1 is communicated with a front end outlet of theliquid storage cavity 201, and a rear end portion in theliquid storage cavity 201 is provided with apressing block 3 protruding forward.

At least one part of theliquid storage body 2 is of a corrugated pipe structure, in particular to the part of theliquid storage body 2 with the most part of the corrugated pipe structure; the present embodiment utilizes and is the bellows structure with the design ofstock solution body 2 in order to provide the ability that can stretch out and draw back, namely,stock solution body 2 is the flexible piece.

The front end of theextrusion block 3 is provided with aconical part 301, the front end of theliquid storage cavity 201 is provided with aconical hole section 2011, theconical part 301 is matched with theconical hole section 2011, and the inlet end of the injection pump 1 is communicated with the middle part of the front end of theconical hole section 2011; thetaper hole section 2011 ofstock solution chamber 201 can play the effect of gathering liquid, and when remaining liquid medicine was all locatedtaper hole section 2011 instock solution chamber 201, along with the extraction of syringe pump 1, thetoper portion 301 ofextrusion piece 3 can be with the whole extrudees of liquid medicine in thetaper hole section 2011 to syringe pump 1.

Theextrusion block 3 is fixed or integrally formed on theliquid storage body 2.

The injection pump 1 is an electromagnetic pump or a piezoelectric pump.

This embodiment is through being telescopic structure with the design of thestock solution body 2, and cooperate withextrusion piece 3, so that when the liquid in 1 extractionstock solution chamber 201 of syringe pump, along with the reduction ofstock solution intracavity 201 interior liquid medicine, the rear end of thestock solution body 2 can draw close to the front end compression gradually,stock solution chamber 201 is small,extrusion piece 3 removes to the front end ofstock solution chamber 201 along with it, the liquid medicine can be full ofstock solution chamber 201 all the time, so the liquid medicine in thestock solution chamber 201 also can not appear the situation of skewstock solution chamber 201 export because of the change of patient's gesture, thereby ensure that no liquid medicine remains in thestock solution chamber 201, and then promote the stability and the reliability of liquid medicine injection.

The telescopic liquid medicine injection and supply device in the embodiment also has the advantages of compact structure, small volume, convenient use and portability.

Because the liquid medicine is originally injected into theliquid storage cavity 201, gas may exist in theliquid storage cavity 201, therefore, after the liquid medicine is injected into theliquid storage cavity 201, theliquid storage cavity 201 can be firstly inverted, one end of theliquid storage cavity 201 far away from theextrusion block 3 faces upwards, then the injection pump 1 is started until the injection pump 1 pumps out liquid, at this time, the gas in theliquid storage cavity 201 can be discharged, and the accuracy of the dosage of the liquid medicine supplied by the subsequent injection pump 1 is ensured.

Example 2

As shown in fig. 3,embodiment 2 differs from embodiment 1 in that: a liquid supplementing channel 4 is formed in the tail end of theliquid storage body 2, and the liquid supplementing channel 4 penetrates through theextrusion block 3 and is communicated with theliquid storage cavity 201; a one-way valve 5 is arranged in the fluid infusion channel 4; or a plug is detachably plugged at the liquid supplementing channel 4; or a one-way valve 5 is arranged in the liquid supplementing channel 4, and a plug is detachably plugged at the liquid supplementing channel 4; mode detachable such as threaded connection or interference fit can be adopted to the end cap to install in fluid infusion passageway 4 department to this embodiment, utilizes setting ofcheck valve 5, realizes that the liquid medicine only can enter intostock solution chamber 201 from fluid infusion passageway 4, and the liquid medicine instock solution chamber 201 can't outwards flow through fluid infusion passageway 4 to prevent that fluid infusion passageway 4 department from appearing leaking, whenstock solution chamber 201 need supply the liquid medicine, pull down end cap 7, after the liquid medicine supplyes, install end cap 7 again in fluid infusion passageway 4 department can.

Example 3

As shown in fig. 4,embodiment 3 differs from embodiment 1 in that: the front end of theliquid storage body 2 is provided with aliquid supplementing port 6, and the liquid supplementingport 6 is communicated with theliquid storage cavity 201; acheck valve 5 is arranged in thefluid infusion port 6; or a plug 7 is detachably plugged at the liquid supplementingport 6; or a one-way valve 5 is arranged in the liquid supplementingport 6, and a plug 7 is detachably plugged at the liquid supplementingport 6; mode detachable such as end cap 7 can adopt threaded connection or interference fit installs influid infusion mouth 6 department in this embodiment, utilizes the setting ofcheck valve 5, realizes that the liquid medicine only can enter intostock solution chamber 201 fromfluid infusion mouth 6, and the liquid medicine instock solution chamber 201 can't outwards flow throughfluid infusion mouth 6 to prevent thatfluid infusion mouth 6 department from appearing leaking, whenstock solution chamber 201 need replenish the liquid medicine, pull down end cap 7, the liquid medicine is replenished the back that finishes, install end cap 7 again influid infusion mouth 6 department can.

Example 4

An insulin injection device comprising the telescopic liquid medicine injection and supply device of theembodiment 1, 2 or 3; the insulin injection device can be attached to the body of a patient by adopting glue to realize the injection of expected insulin to the diabetic, and specifically, one end of an infusion tube is embedded in the abdomen, the hip, the outer side of the upper arm, the outer side of the thigh and the like of the patient through an indwelling needle, the other end of the infusion tube is communicated with an outlet of an injection pump 1, the injection pump 1 extracts liquid medicine in aliquid storage cavity 201 and conveys the liquid medicine to the infusion tube, and finally the liquid medicine is injected into a human body through the indwelling needle at the front end of the infusion tube.

Example 5

A portable analgesic medical fluid injection apparatus, comprising the telescopic medical fluid injection and supply device of theabove embodiment 1, 2 or 3; the pain-relieving liquid medicine injection equipment can be adhered to a patient by adopting glue, so that the pain-relieving liquid medicine can be injected to the patient to relieve the pain of the patient.

Example 6

A portable liquid medicine drip injection device, which comprises the telescopic liquid medicine injection liquid supply device in theembodiment 1, 2 or 3; the device can be used for intravenous drip (intravenous injection) of liquid medicine, and can be adhered to the body of a patient by glue, so that the patient can move about, such as go to a toilet or walk, when the liquid medicine is dripped.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (13)

1. A telescopic liquid medicine liquid supply device is characterized in that: including syringe pump (1) and can follow the stock solution body (2) that the axial is flexible, have inclosed stock solution chamber (201) that are used for storing the liquid medicine in the stock solution body (2), the entrance point of syringe pump (1) and the front end export intercommunication in stock solution chamber (201), rear end tip in stock solution chamber (201) has forward convex extrusion piece (3).

2. The telescopic liquid medicine supply device according to claim 1, wherein: at least one part of the liquid storage body (2) is of a corrugated pipe structure.

3. The telescopic liquid medicine supply device according to claim 1, wherein: the front end of the extrusion block (3) is provided with a conical part (301), the front end of the liquid storage cavity (201) is provided with a conical hole section (2011), the conical part (301) is matched with the conical hole section (2011), and the inlet end of the injection pump (1) is communicated with the middle part of the front end of the conical hole section (2011).

4. The telescopic liquid medicine supply device according to claim 1, wherein: the extrusion block (3) is fixed or integrally formed on the liquid storage body (2).

5. The telescopic liquid medicine supply device according to claim 1, wherein: the tail end of the liquid storage body (2) is provided with a liquid supplementing channel (4), and the liquid supplementing channel (4) penetrates through the extrusion block (3) and is communicated with the liquid storage cavity (201).

6. The telescopic liquid medicine supply device according to claim 5, wherein: and a one-way valve (5) is arranged in the liquid supplementing channel (4).

7. The telescopic liquid medicine supply device according to claim 1, wherein: the front end of the liquid storage body (2) is provided with a liquid supplementing port (6), and the liquid supplementing port (6) is communicated with the liquid storage cavity (201).

8. The telescopic liquid medicine supply device according to claim 7, wherein: and a one-way valve (5) is arranged in the fluid infusion port (6).

9. The telescopic liquid medicine supply device according to claim 7 or 8, wherein: and a plug (7) is detachably plugged at the liquid supplementing port (6).

10. The telescopic liquid medicine supply device according to claim 1, wherein: the injection pump (1) is an electromagnetic pump or a piezoelectric pump.

11. An insulin injection device characterized by: comprising the telescopic liquid medicine supply device as claimed in any one of claims 1 to 10.

12. A portable analgesic liquid medicine injection device is characterized in that: comprising the telescopic liquid medicine supply device as claimed in any one of claims 1 to 10.

13. The utility model provides a portable liquid medicine drip injection equipment which characterized in that: comprising the telescopic liquid medicine supply device as claimed in any one of claims 1 to 10.

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