CN100455327C - Infusion flow adjuster - Google Patents

Abstract

The infusion flow rate regulator mounted in infusion set to regulate infusion speed consists of one outer pipe, one inner pipe and one connecting pipe. The outer pipe includes three parts: an outer pipe seat, a scale section and a sealing ring pushing section; the inner pipe includes four parts: a regulating pin, a sealing ring section, a pressing nose section and an inner pipe seat; and the connecting pipe connects the outer pipe and the inner pipe. The infusion flow rate regulator regulates the medicine liquid flow rate through controlling the interval between the regulating pin and the outer pipe cavity, and the flow rate corresponds to the scale visually. It may be used to replace available flow rate regulator and its fittings in infusion set for infusion.

Description

Infusion flow adjuster

Technical field

The present invention relates to the flow regulator used on a kind of transfusion device, is a kind of quantification flow regulator that is used for regulating patient infusion speed specifically.

Background technology

The transfusion device of usefulness clinically, flow regulator of dress is made up of roller and leather hose groove on it, the bottom of leather hose groove is gradient, the transfusion leather strap is in the leather hose groove, scroll wheel, roller extruding transfusion leather strap, transfusion leather strap lacuna diminishes, and the medical worker is by the change of this lacuna of control, just reached the purpose of regulating infusion flow, because the change of this leather strap lacuna can't be expressed with the quantity of determining, the medical worker can only be dripped per minute by observation dropper giving drugs into nose and be dripped number, is used as judging whether the adjusting of flow regulator meets the requirements of foundation, different transfusion devices, the dropper medicine drips and varies in size, and drips number according to the dropper giving drugs into nose and judges and can not quantize the transfusion speed, and it is inaccurate, count the dropper giving drugs into nose in addition and drip, need free gas to exist in the dropper, this easily forms bubble in the transfusion leather strap, easily air is imported patient blood, form air embolism, and transfusion device need be inverted aerofluxus, troublesome poeration when making transfusion operation.On the other hand, the function that this flow regulator does not make patient blood reflux needs to cooperate sebific duct, rely on the resilience force of sebific duct, allow blood reflux, because the resilience force of sebific duct is poor, wayward, judge in this way whether the transfusion device needle tubing stings accurate venous patient, weak effect.

Summary of the invention

Purpose of the present invention is exactly to provide a kind of transfusion speed to regulate for the problems referred to above that solve existing flow regulator existence can quantize, accurately, easy to operate, need not cooperate dropper, bubble do not occur, do not form air embolism, do not need transfusion device is inverted aerofluxus, need not cooperate sebific duct, can judge effectively whether the transfusion device needle tubing stings the new infusion flow adjuster of accurate venous patient.

For reaching these purposes, the present invention takes following technical scheme:

The present invention is by outer tube, interior pipe, connection tube is formed, outer tube divides three sections, leading portion is outer base, connect transfusion leather strap bottom, the stage casing is the scale section, transparent, scale and corresponding flow reading are arranged outward, when infusion bottle hangs over calibrated altitude, when interior pipe speed governing post frontal plane is concordant with the corresponding readings graduation mark, this reading is the infusion bottle inner liquid medicine flows into human body by transfusion device transfusion speed, gradient inner chamber in the scale section, by gap length between control gradient inner chamber and the interior pipe speed governing post, flow velocity when the scalable medicinal liquid passes through in the outer tube, the outer tube back segment is a sealing ring sliding section, its inner chamber size evenly, interior pipe is gone up sealing ring sliding within it, sealing and firm, the terminal connection tube that connects of sealing ring sliding section, connection tube is soft, plasticity is big, play the isolation outer tube, the inside and outside effect of interior pipe, pipe in the other end of connection tube connects, interior pipe divides four sections, first section is the speed governing post, elongated, size shape and outer tube scale section inner chamber are supporting, controlling the position of speed governing post at scale section inner chamber, just control gap between speed governing post and the scale section inner chamber, this gap length is directly proportional with infusion flow, has so also controlled infusion flow, and second section is the sealing ring section, pipe internal orifice in sealing ring section front has, by this mouthful, medicinal liquid can pass in and out in outer tube and interior pipe, behind the interior pipe internal orifice sealing ring is arranged, sealing ring can free sliding in the sealing ring sliding section of outer tube, in the 3rd section of pipe for pushing the nose section, last oriented outer process push nose, finger presses is being pushed on the nose, can easily interior pipe be shoved around in outer tube, interior pipe is interior base for the 4th section, connects transfusion leather strap top, and medicinal liquid is through the leather strap inner chamber of infusing, interior base inner chamber, push nose section inner chamber, sealing ring section inner chamber is passed through by interior pipe internal orifice, again through the sealing ring sliding section inner chamber of outer tube, scale section inner chamber, outer base inner chamber, transfusion leather strap lower lumen enters human vein, finishes infusion process.Finger presses is pushed on the nose interior pipe, interior pipe is drawn inside and outside outer tube, the gap increases between interior pipe speed governing post and the outer tube scale section inner chamber, it is big that transfusion speed becomes, it is far away that speed governing this moment post frontal plane leaves " 0 " graduation mark, and it is concordant with the graduation mark of big reading, the graduation mark reading of this big reading is infusion flow rate at this moment, this reading quantification, accurately, it need not cooperate dropper to judge transfusion speed, medicinal liquid is by interior pipe, do not need air to exist during outer tube bore, need not be inverted aerofluxus, bubble do not occur, do not form air embolism, press...with one's finger and press the outer transfusion leather strap of interior pipe, venous patient blood is refluxed, need not cooperate sebific duct, this operation is controlled, convenient, thus can judge effectively whether the transfusion device needle tubing stings accurate venous patient.

Compare with traditional flow regulator, it replaces original roller, leather hose groove with outer tube, interior pipe, connection tube, do not need to make it to cooperate in addition transfusion drip tube, sebific duct, and make infusion flow regulate and quantize, accurately, easy to operate, need not be inverted aerofluxus, bubble do not occur, do not form air embolism, can judge effectively whether the transfusion device needle tubing stings accurate venous patient.

Description of drawings

Fig. 1 product structure figure

Among the figure: 1, outer tube 2, interior pipe 3, connection tube 4, outer base 5, scale 6, speed governing post 7, interior pipe internal orifice 8, sealing ring 9, push nose 10, interior base 11, transfusion leather strap bottom 12, transfusion leather strap top

The specific embodiment

The present invention is made up of outer tube 1, interior pipe 2, connection tube 3, and three sections of outer tubes 1 minute, leading portion are that outer base 4, outer base 4 and transfusion leather strap bottom 11 are connected; The stage casing is the scale section, and is transparent, and scale 5 and corresponding flow reading, interior gradient inner chamber are arranged outward; Back segment is a sealing ring sliding section, and the inner chamber size evenly connects connection tube 3 outside the end, and connection tube 3 is soft, stretch and draw plasticity big, the other end of connection tube 3 is connected with interior pipe 2, four sections of interior pipes 2 minutes, first section is speed governing post 6, and speed governing post 6 is elongated, and size shape and outer tube 1 scale section inner chamber are supporting; Second section is the sealing ring section, and pipe internal orifice 7 had sealing ring 8 behind the interior pipe internal orifice 7 in sealing ring section front end had, and outside 2 second sections of the pipes, places the interior intracavity of the sealing ring sliding section of outer tube 1 in sealing ring 8 wraps in; In pipe 2 the 3rd section for pushing the nose section, on have outwards give prominence to push nose 9; The 4th section of interior pipe 2 is interior base 10, interior base 10 is connected with the top 12 of transfusion leather strap, transfusion leather strap top 12 inner chambers, are connected with transfusion leather strap bottom 11 inner chambers by outer tube 1 sealing ring sliding section inner chamber, scale section inner chamber, outer base 4 inner chambers by interior pipe internal orifice 7 pass-outs through interior base 10 inner chambers, sealing ring section inner chamber again.During use, infusion bottle is fixed on the height of standard, the transfusion device that infusion flow adjuster is housed is connected to mouth of infusion bottle, press...with one's finger be pressed in the pushing on the nose 9 of pipe, interior pipe 2 is drawn inside and outside outer tube 1, medicinal liquid flows down in infusion bottle, during to needle tubing, interior pipe 2 is advanced in outer tube 1, make medicinal liquid no longer mobile, needle tubing thrusts venous patient, and the transfusion leather strap in pushing outside the base 10 draws interior pipe 2 simultaneously inside and outside outer tube 1, after judging that needle tubing has stung accurate venous patient, speed governing post 6 frontal planes of interior pipe are rested on the scale position of corresponding readings, decontrol finger, promptly infuse.

Claims (1)

1, a kind of infusion flow adjuster is made up of outer tube (1), interior pipe (2), connection tube (3), it is characterized in that: outer tube (1) divides three sections, and leading portion is outer base (4), and outer base (4) is connected with transfusion leather strap bottom (11); The stage casing is the scale section, and is transparent, and scale (5) and corresponding flow reading, interior gradient inner chamber are arranged outward; Back segment is a sealing ring sliding section, and the inner chamber size evenly connects connection tube (3) outside the end; Connection tube (3) is soft, stretches and draws plasticity big, and the other end of connection tube (3) is connected with interior pipe (2); Interior pipe (2) divides four sections, and first section is speed governing post (6), and speed governing post (6) is elongated, and size shape and outer tube (1) scale section inner chamber is supporting; Second section is the sealing ring section, and pipe internal orifice (7) had sealing ring (8) in sealing ring section front end had behind the interior pipe internal orifice (7), and sealing ring (8) wraps in outside (2) second sections of the interior pipes, places the interior intracavity of the sealing ring sliding section of outer tube (1); In pipe (2) the 3rd section for pushing the nose section, on have outwards give prominence to push nose (9); The 4th section of interior pipe (2) is interior base (10), interior base (10) is connected with the top (12) of transfusion leather strap, transfusion leather strap top (12) inner chamber, is connected with transfusion leather strap bottom (11) inner chamber by outer tube (1) sealing ring sliding section inner chamber, scale section inner chamber, outer base (4) inner chamber by interior pipe internal orifice (7) pass-out through interior base (10) inner chamber, sealing ring section inner chamber again.

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