CN209695969U - A kind of insulin pump with degassing function - Google Patents

Abstract

The utility model discloses a kind of insulin pumps with degassing function, including drug storage pipe, piston is equipped with inside the drug storage pipe, piston is fixed on push rod, and push rod is arranged inside guide tube, push rod bottom offers the first gas port, the second gas port is offered at the top of push rod, screw rod is interspersed with inside push rod, screw rod bottom is equipped with screw mandrel base, screw mandrel base is made of upper section pedestal, middle section pedestal and lower section pedestal, and screw rod connects micro motor by connection gear.The utility model has the insulin pump of degassing function, the three-stage of screw mandrel base designs, reduce the connection number between screw rod, bearing and connection gear, improve integrated design level, reduce assembly difficulty, the connection length between three is shortened, and then provides more design spaces for insulin pump miniaturization；Be conducive in guide tube gas discharge, reduce push rod infusion with it is air-assisted when return, effectively reduce the power consumption of insulin pump.

Description

A kind of insulin pump with degassing function

Technical field

The utility model relates to a kind of insulin pump, specifically a kind of insulin pump with degassing function.

Background technique

Insulin pump in treatment is the preferred plan for treating diabetes, and insulin pump can have been accomplished small in size at present, weight Amount is light, can be carried around.Insulin pump working principle is typically all directly or indirectly to be drived screw rod rotation by micro motor, screw rod The linear motion of push rod is converted rotational motion to, to push the piston motion in medicine storage and complete infusion task.

Push rod and guide tube associated with push rod are all made into the structure of sealing by product on the market, and this structure is unfavorable for The discharge of push rod air in guide tube when injecting and resetting increases the resistance of push rod reciprocating motion, considerably increases insulin The power consumption of pump, thereby reduce insulin pump uses the time；In addition, the screw rod bottom structure in guide tube is usually that gear is fixed On bearing, then screw rod is fixedly connected with gear again, and this assembly precision of fixed connection structure twice is poor, and axial long Degree is longer, is unfavorable for insulin pump miniaturization, lightweight and fining.

Therefore, in view of the above problems, we need one kind to have degassing function, assembly is more compact, and precision is finer Insulin pump device.

Utility model content

The purpose of this utility model is to provide a kind of insulin pumps with degassing function, to solve above-mentioned background technique The problem of middle proposition.

To achieve the above object, the utility model provides the following technical solutions:

A kind of insulin pump with degassing function, including drug storage pipe, the drug storage pipe inside are equipped with piston, piston It is fixed on push rod, push rod is arranged inside guide tube, and push rod bottom offers the first gas port, offers second at the top of push rod and leads Stomata is interspersed with screw rod inside push rod, and screw rod bottom is equipped with screw mandrel base, and screw mandrel base is by upper section pedestal, middle section pedestal It is formed with lower section pedestal, screw rod connects micro motor by connection gear.

As a further solution of the present invention: first gas port setting there are four and circular array be distributed.

The push rod bottom cooperation screw rod is equipped with nut, the material of nut as a further solution of the present invention, Matter is copper.

The upper section pedestal, middle section pedestal and lower section pedestal are integral type as a further solution of the present invention, Be fixedly connected, upper section pedestal be it is discoid, middle section pedestal is polygon prism-frustum-shaped, lower section pedestal be it is cylindric, middle section pedestal is interspersed Limit cooperates upper section pedestal to be equipped with placement groove on gear internal, gear, and lower section pedestal is inserted through gear, is arranged on gear There is bearing, gear is fixed under gear-box on lid by bearing rotation, and connection gear rotation is fixed on connection under gear-box on lid Gears and gears engagement, connection gear engage motor gear, and motor gear is fixed on the output shaft of micro motor, micro motor It is mounted on gear box cover, gear box cover lid closes under gear-box on lid, and guide tube is fixed on gear box cover.

The micro motor is equipped with encoder and reduction gearbox as a further solution of the present invention,.

Gas vent is offered on the gear box cover as a further solution of the present invention,.

Compared with prior art, the utility model has the beneficial effects that

1, the upper section pedestal, middle section pedestal and lower section pedestal of screw mandrel base three-stage design, reduce screw rod, bearing and Connection number between connection gear, improves that integrated design is horizontal and precision, reduces assembly difficulty, shorten three it Between connection length, and then for insulin pump miniaturization more design spaces are provided；

2, the first gas port and the second gas port opened up on push rod is conducive to the discharge of the gas in guide tube, reduces push rod Infusion with it is air-assisted when return, effectively reduce the power consumption of insulin pump.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of insulin pump with degassing function.

Fig. 2 is a kind of structural representation with first gas port one end of push rod in insulin pump with degassing function Figure.

Fig. 3 is a kind of structural representation with second gas port one end of push rod in insulin pump with degassing function Figure.

Fig. 4 is a kind of horizontal cross-section structure diagram of push rod in insulin pump with degassing function.

Fig. 5 is a kind of explosive view of screw rod in insulin pump with degassing function.

Fig. 6 is a kind of horizontal cross-section structure diagram of screw rod in insulin pump with degassing function.

Wherein: drug storage pipe 1, piston 2, push rod 3, screw rod 4, guide tube 5, screw mandrel base 6, connection gear 7, the first gas port 8, Micro motor 10, gear box cover 11, gear-box lower cover 12, gear 13, bearing 14, nut 15, upper section pedestal 61, middle section pedestal 62, lower section pedestal 63, the second gas port 81.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1~6 are please referred to, a kind of insulin pump with degassing function is provided.

Embodiment 1

Please refer to Fig. 1~6, in the utility model embodiment, a kind of insulin pump with degassing function, including drug storage pipe 1, piston 2 is equipped with inside the drug storage pipe 1,2 lower end of piston is fixed on push rod 3, and push rod 3 is arranged inside guide tube 5, in order to have Conducive in guide tube 5 gas discharge, reduce push rod 3 infusion with it is air-assisted when return, effectively reduce insulin pump Power consumption, 3 bottom of push rod offer the first gas port 8, and there are four the settings of the first gas port 8 and circular array is distributed, and push rod 3 pushes up Portion offers the second gas port 81, and screw rod 4 is interspersed with inside push rod 3, and 4 bottom of screw rod is equipped with screw mandrel base 6, screw mandrel base 6 It is made of upper section pedestal 61, middle section pedestal 62 and lower section pedestal 63, screw rod 4 connects micro motor 10 by connection gear 7.

Preferably, 3 bottom of the push rod cooperation screw rod 4 is equipped with nut 15, and the material of nut 15 is copper.

Embodiment 2

A kind of insulin pump with degassing function, please refers to Fig. 1~6, and the utility model embodiment is in embodiment 1 On the basis of the further restriction that carries out.

Preferably, the upper section pedestal 61, middle section pedestal 62 are fixedly connected with lower section pedestal 63 for integral type, upper section pedestal 61 is discoid, and middle section pedestal 62 is polygon prism-frustum-shaped, lower section pedestal 63 be it is cylindric, the interspersed limit of middle section pedestal 62 is in gear Cooperate upper section pedestal 61 to be equipped with inside 13, on gear 13 and place groove, lower section pedestal 63 is inserted through gear 13, covers on gear 13 Equipped with bearing 14, gear 13 is fixed on gear-box lower cover 12 by the rotation of bearing 14, and the rotation of connection gear 7 is fixed on gear-box On lower cover 12, connection gear 7 and gear 13 are engaged, and connection gear 7 engages motor gear, and motor gear is fixed on micro motor 10 Output shaft on, micro motor 10 is equipped with encoder and reduction gearbox, and micro motor 10 is mounted on gear box cover 11, gear The lid of box cover 11 closes on gear-box lower cover 12, gas vent is offered on gear box cover 11, guide tube 5 is fixed on gear box cover On 11.

The beneficial effects of the utility model are: the upper section pedestal 61 of screw mandrel base 6, middle section pedestal 62 and lower section pedestal 63 Three-stage design, reduce the connection number between screw rod 4, bearing 14 and connection gear 7, improve integrated design level and Precision reduces assembly difficulty, shortens the connection length between three, and then provide for insulin pump miniaturization and more set Count space；The first gas port 8 and the second gas port 81 opened up on push rod 3 is conducive to the discharge of the gas in guide tube 5, reduces and pushes away Bar 3 infusion with it is air-assisted when return, effectively reduce the power consumption of insulin pump.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of insulin pump with degassing function, including drug storage pipe (1), which is characterized in that set inside the drug storage pipe (1) Have piston (2), piston (2) lower end is fixed on push rod (3), and push rod (3) setting is internal in guide tube (5), and push rod (3) bottom opens up Have the first gas port (8), offered the second gas port (81) at the top of push rod (3), is interspersed with screw rod (4), screw rod inside push rod (3) (4) bottom is equipped with screw mandrel base (6), and screw mandrel base (6) is by upper section pedestal (61), middle section pedestal (62) and lower section pedestal (63) it forms, screw rod (4) passes through connection gear (7) connection micro motor (10).

2. a kind of insulin pump with degassing function according to claim 1, which is characterized in that first gas port (8) there are four being arranged and circular array is distributed.

3. a kind of insulin pump with degassing function according to claim 1, which is characterized in that push rod (3) bottom Portion's cooperation screw rod (4) is equipped with nut (15), and the material of nut (15) is copper.

4. a kind of insulin pump with degassing function according to claim 1, which is characterized in that the upper section pedestal (61), middle section pedestal (62) is fixedly connected with lower section pedestal (63) for integral type, and upper section pedestal (61) is discoid, middle section pedestal (62) be polygon prism-frustum-shaped, lower section pedestal (63) be it is cylindric, the interspersed limit of middle section pedestal (62) is internal in gear (13), gear (13) cooperate upper section pedestal (61) to be equipped on and place groove, lower section pedestal (63) is inserted through gear (13), and gear covers on (13) Equipped with bearing (14), gear (13) is fixed on gear-box lower cover (12) by bearing (14) rotation, and connection gear (7) rotation is solid It is scheduled on gear-box lower cover (12), connection gear (7) and gear (13) engagement, connection gear (7) engage motor gear, motor gear Wheel is fixed on the output shaft of micro motor (10), and micro motor (10) is mounted on gear box cover (11), gear box cover (11) lid closes on gear-box lower cover (12), and guide tube (5) is fixed on gear box cover (11).

5. a kind of insulin pump with degassing function according to claim 4, which is characterized in that the micro motor (10) encoder and reduction gearbox are equipped with.

6. a kind of insulin pump with degassing function according to claim 4, which is characterized in that the gear box cover (11) gas vent is offered on.