WO2008082126A1 - Device for feeding liquid medicine - Google Patents
Device for feeding liquid medicine Download PDFInfo
- Publication number
- WO2008082126A1 WO2008082126A1 PCT/KR2007/006788 KR2007006788W WO2008082126A1 WO 2008082126 A1 WO2008082126 A1 WO 2008082126A1 KR 2007006788 W KR2007006788 W KR 2007006788W WO 2008082126 A1 WO2008082126 A1 WO 2008082126A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solution
- dispensing device
- rotary part
- purge button
- solution dispensing
- Prior art date
Links
- 239000003814 drug Substances 0.000 title description 6
- 239000007788 liquid Substances 0.000 title description 2
- 239000000243 solution Substances 0.000 claims abstract description 115
- 239000008155 medical solution Substances 0.000 claims abstract description 44
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 210000003462 vein Anatomy 0.000 claims abstract description 9
- 238000010926 purge Methods 0.000 claims description 59
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 206010057362 Underdose Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
Abstract
A solution dispensing device capable of finely adjusting injection of medical solution is provided. A solution dispensing device includes a pack containing medical solution, a solution transporting tube connected at the bottom of the pack, a flow controller disposed at the midpoint of the solution transporting tube for controlling the injection speed of the medical solution, and a needle injected into a vein of a person. The flow controller includes a fixing member which interconnects an incoming and an outgoing part of the solution transporting tube; an adjusting member which is coupled with the fixing member; and a connection member which is interposed between the fixing member and the adjusting member, wherein the adjusting member comprises a cylindrical flow control part inserted into the fixing member and having a plurality of passage grooves formed around a circumferential edge thereof and a circular rotary part connected to the flow control part and having an indicator, the passage grooves being formed with different cross sections, the indicator indicating currently selected passage groove.
Description
Description DEVICE FOR FEEDING LIQUID MEDICINE
Technical Field
[1] The present invention relates to an intravenous drip apparatus and, in particular, to a solution dispensing device capable of finely adjusting injection of medical solution according to the patient's health state. Background Art
[2] Ringer's solution, which is carried by a bottle or a pack and directly injected into a vein through a needle. The Ringer's solution is used for invigorating patients and improving metabolism of valetudinarians having metabolic disorder. In order to regulating the injection speed or shutting off the Ringer's solution, a control switch is disposed at the midpoint of the solution transporting tube.
[3] The well-known solution dispensing device is provided at the top thereof with a connecting needle piercing through the mouth of a drip bottle, a solution transporting tube attached to the bottom end of the solution dispensing device and connected with a hypodermic needle for injecting intravenously a medical solution into a person's body, and a control switch disposed at the midpoint of the solution transporting tube for regulating the injection speed or shutting off the solution transporting tube. The control switch is provided with a pressure roller for adjusting a cross section of inner diameter of the solution transporting tube.
[4] Also, the Korean Patent Application 2001-0074845 discloses a solution dispensing device which is provided with a pack containing a medical solution, a hose attached to the bottom end of the pack, a fluid adjuster disposed at the midpoint of the hose for adjusting the flow amount of the medication solution, and a syringe having a needle inserted into a vein of the patient, the fluid adjuster including a fixing member integrated with the hose and an adjusting member coupled at one side of the fixing member for regulating the medication solution amount, the fixing member including a first and a second seats to which respective inlet and outlet are formed and a hooking hole interposed between the inlet and outlet for coupling the adjusting member. The adjusting member is provided with stepwise insertion pieces of which a first insertion piece is provided with a fluid trench formed circumferentially along an angle of 320 to 355 degree and a second insertion piece is provided with a hole on its side wall such that a fluid passage is established between the first and second insertion pieces, the second insertion piece being provided with a hooking member integrating a hook to be coupled with the hooking hole.
[5] The above structured solution dispensing device allows adjusting medication
solution amount to be injected into the vein of the patient by manipulating the fluid adjuster.
[6] However, the first conventional solution dispensing device has a drawback in that the passage of the solution transporting tube squeezed by the pressure roller may expand by resilient force of the solution transporting tube made of a soft synthetic resin or rubber, whereby the unexpected overdose may result in a dangerous situation of the patient. For this reason, periodic inspection is required when using this conventional solution device and the control switch should be reset whenever the drip bottle is replaced by new one.
[7] In the case of second conventional solution dispensing device, since a rubber packing blocks the fluid passage when the hole having a small cross section is selected, fine adjustment is impossible or, if possible, is should be measured with the eye.
[8] Recently, an injector which is capable of automatically controlling the flow amount of the medication solution is commercialized. However, the automatic injector is very expensive and should be installed in separation with the control switch, resulting in difficulty of storage and management. Also, the conventional automatic injector is likely to break down and malfunction, whereby an underdose or overdose of specific medicine caused by the breakdown and malfunctioning of the injector may result in a dangerous situation of the patient.
[9] Particularly, the conventional solution dispensing devices are not provided with any security mechanism such that an incidental touch on the control switch by an inexpert while the medical solution is injected into the patient's body may causes a significant medical accident.
[10] In a case of the conventional solution dispensing devices, the air should be removed from the transporting tube while replacing the medical solution set having a medical solution controller with a new set. In this case, however, the transporting tube should be filled up with the medical solution or empted and then adjust the amount of the medical solution by rotating the medical solution controller in alternate directions, resulting in laborious inconvenience. Disclosure of Invention Technical Problem
[11] The present invention has been made in an effort to solve above problems, and it is an object of the present invention to provide a solution dispensing device capable of adjusting injection amount of medical solution automatically and finely.
[12] It is another object of the present invention of the present invention to provide a solution dispensing device capable of simply removing air and filling up medical solution in a transporting tube by pushing a purge button regardless of the amount of
the medical solution to be injected. Technical Solution
[13] In accordance with an aspect of the present invention, the above and other objects are accomplished by as solution dispensing device including a pack containing medical solution, a solution transporting tube connected at the bottom of the pack, a flow controller disposed at the midpoint of the solution transporting tube for controlling the injection speed of the medical solution, and a needle injected into a vein of a person. The flow controller of the solution dispensing device includes a fixing member which interconnects an incoming and an outgoing part of the solution transporting tube; an adjusting member which is coupled with the fixing member; and a connection member which is interposed between the fixing member and the adjusting member, wherein the adjusting member comprises a cylindrical flow control part inserted into the fixing member and having a plurality of passage grooves formed around a circumferential edge thereof and a circular rotary part connected to the flow control part and having an indicator, the passage grooves being formed with different cross sections, the indicator indicating currently selected passage groove.
[14] Preferably, the fixing member includes a cylindrical body closed at one end and open at the other end, the closed end having two pairs of fixing protrusions formed on inner wall for fixing the connection member inserted through the open end, the body and connection member defining a main chamber, the open end having a pair of projections protruded inward for fixedly holding the adjusting member; an inlet protrusion formed on an outer circumferential surface of the body and having an aperture for receiving the incoming tube; and an outlet protrusion formed on the outer circumferential surface of the body and having an aperture for receiving the outgoing tube; wherein the main chamber and apertures of the inlet and outlet protrusions establishing a flow line.
[15] Preferably, the fixing member further includes a knob protruded downward on the outer circumferential surface of the body.
[16] Preferably, the connection member includes a circular plate having two protrusions each engaged with the fixing protrusions and a connection rod integrally connected at a center of the circular plate, wherein the circular plate is provided with at least one passage hole formed around the connection rod.
[17] Preferably, the adjusting member includes a rotary part having an indicator, and a cylindrical flow control rod integrally connected to the rotary part, wherein the cylindrical flow control rod having a closed end with a rim protruded in a longitudinal direction defining a circumferential chamber, the closed end being provided with an opening through which the connection rode tightly penetrates, the rim having the
grooves formed along a circumferential edge and having different sizes of cross sections.
[18] Preferably, the grooves are selectively connected to the aperture of the inlet protrusion for adjusting a flow rate indicated by the indicator of which value changed by rotating the rotary part.
[19] Preferably, the rotary part contacts the fixing member by means of serration mechanism for precise rotation between the flow rates indicated by the indicator.
[20] In accordance with another aspect of the present invention, the above and other objects are accomplished by a solution dispensing device including a pack containing medical solution, a solution transporting tube connected at the bottom of the pack, a flow controller disposed at the midpoint of the solution transporting tube for controlling the injection speed of the medical solution, and a needle injected into a vein of a person. The flow controller of the solution dispensing device includes a fixing member which interconnects an incoming and an outgoing part of the solution transporting tube; an adjusting member which is coupled with the fixing member; and a connection member which is interposed between the fixing member and the adjusting member; a purge button connected to an end of the connection member protruded through a center of the adjusting member; and an elastic member interposed between the purge button and the adjusting member for biasing the purge button in a direction.
[21] Preferably, the adjusting member includes a cylindrical flow control rod having a closed end with a rim protrude in longitudinal direction, the rim having a plurality of grooves, formed along a circumferential edge, having different sizes of cross sections; and a rotary part connected to an open end of the cylindrical flow control rod and an indicator formed along a circular edge of the rotary part for indicating flow rates of the grooves.
[22] Preferably, the fixing member includes a cylindrical body closed at one end and open at the other end, the closed end having two pairs of fixing protrusions formed on inner wall for fixing the connection member inserted through the open end, the body and connection member defining a main chamber, the open end having a pair of projections protruded inward for fixedly holding the adjusting member; an inlet protrusion formed on an outer circumferential surface of the body and having an aperture for receiving the incoming tube; and an outlet protrusion formed on the outer circumferential surface of the body and having an aperture for receiving the outgoing tube; wherein the main chamber and apertures of the inlet and outlet protrusions establishing a flow line.
[23] Preferably, the connection member includes a circular plate having two protrusions each engaged with the fixing protrusions; and a connection rod integrally connected at a center of the circular plate; wherein the circular plate is provided with at least one
passage hole formed around the connection rod.
[24] Preferably, the cylindrical flow control rod includes a closed end having a rim protruded in a longitudinal direction defining a circumferential chamber; a center aperture formed on the closed end through which the connection rod penetrates; a plurality of grooves formed with different cross sectional sizes along a circumferential edge of the rim; wherein an end of the connection rod penetrated through the center aperture is connected at a center of the purge button, and the elastic member is interposed between the purge button and the closed end of the cylindrical control rode for biasing the purge button.
[25] Preferably, the grooves are selectively connected to the aperture of the inlet protrusion for adjusting a flow rate indicated by the indicator of which value changed by rotating the rotary part.
[26] Preferably, the connection member is biased when the purge button is pressed such that the circular plate of the connection member separated against the end of the flow control rod for establishing drainage passage.
[27] Preferably, the purge button comprises a safety device.
[28] Preferably, the safety device comprises a stopper which is inserted between a bottom surface of the purge button and a top surface of the rotary part for preventing the purge button from being pushed.
[29] Preferably, the safety device comprises a stopper inserted between a surface of the rotary part and a seat caved in on the surface of a bottom surface of the purge button for preventing the purge button from being pushed and preventing the rotary part from rotating.
[30] Preferably, the safety device includes a stopper and a holder connected to the stopper for manipulating the stopper, wherein the is inserted between a bottom surface of the purge button and an top surface of the rotary part for preventing the purge button from being pushed by rotating the holder as much as 180 degree.
[31] Preferably, the safety device includes a stopper and a holder connected to the stopper for manipulating the stopper, wherein the stopper inserted between a surface of the rotary part and a seat caved in on the surface of a bottom surface of the purge button for preventing the purge button from being pushed and preventing the rotary part from rotating.
Advantageous Effects
[32] The solution dispensing device of the present invention is affective and most useful for adjusting injection amount of medical solution automatically and finely. Brief Description of the Drawings
[33] The above and other objects, features and advantages of the present invention will
be more apparent from the following detailed description in conjunction with the accompanying drawings, in which:
[34] FIG. 1 is a perspective view illustrating a typical solution dispensing device;
[35] FIG. 2 is a dissembled perspective view illustrating a solution flow controller of the solution dispensing device according to an exemplary embodiment of the present invention; [36] FIG. 3 is a dissembled sectional view illustrating the solution flow controller of
FIG. 2;
[37] FIG. 4 is a perspective view illustrating the connection member of FIG. 2;
[38] FIG. 5 is a perspective view illustrating the adjusting member of FIG. 2;
[39] FIG. 6 is an assembled sectional view illustrating the solution flow controller of
FIG. 3 when being set to minimum flow rate; [40] FIG. 7 is an assembled sectional view illustrating the solution flow controller of
FIG. 3 when being set to maximum flow rate; [41] FIG. 8 is a conceptual view illustrating a solution flow line established in the solution flow controller of FIGs. 6 and 7; [42] FIG. 9 is a diagram illustrating an indicator implemented on the rotary part of adjusting member of FIG. 3; [43] FIG. 10 is a dissembled sectional view illustrating a solution flow controller according to another exemplary embodiment of the present invention; [44] FIG. 11 is an assembled sectional view illustrating a solution flow controller of
FIG. 10; [45] FIG. 12 is a cross sectional view illustrating a solution flow controller according to another exemplary embodiment of the present invention; [46] FIG. 13 is a cross sectional view illustrating a solution flow controller according to another exemplary embodiment of the present invention; [47] FIG. 14 is a cross sectional view illustrating a solution flow controller having a safety device according to another exemplary embodiment of the present invention; and [48] FIG. 15 is a cross sectional view illustrating a solution flow controller having a safety device according to another exemplary embodiment of the present invention.
Best Mode for Carrying Out the Invention [49] Exemplary embodiments of the present invention are described with reference to the accompanying drawings in detail. The same reference numbers are used throughout the drawings to refer to the same or like parts. Detailed descriptions of well-known functions and structures incorporated herein may be omitted to avoid obscuring the subject matter of the present invention.
[50] FIG. 1 is a perspective view illustrating a typical solution dispensing device.
[51] As shown in FIG. 1, a solution dispensing device 100 includes a pack 200 contained medical solution, a solution transporting tube 300 attached to the bottom end of the pack 200, a solution flow controller 400 disposed at the midpoint of the solution transporting tube for adjusting transport speed of the medical solution, and a needle connected at the other end of the solution transporting tube 300 for injecting the medical solution into a vein of a person.
[52] FIG. 2 is a dissembled perspective view illustrating a solution flow controller of the solution dispensing device according to an exemplary embodiment of the present invention.
[53] Referring to FIG. 2, a solution flow controller 40 includes a cylindrical fixing member 10 opened at one end and having an inlet protrusion connected to an incoming tube 300a and an outlet intrusion connected to an outgoing tubes 300b, a connecting member 20 fixedly inserted into the fixing member 10, and a cylindrical adjusting member 30 opened at one end and inserted into the fixing member 20 such that the connecting member is housed in a space defined by connecting the fixing member 10 and adjusting member 30.
[54] FIG. 3 is a dissembled sectional view illustrating the solution flow controller of
FIG. 2; FIG. 4 is a perspective view illustrating the connection member of FIG. 2; and FIG. 5 is a perspective view illustrating the adjusting member of FIG. 2.
[55] Referring to FIGs. 3 to 5, the fixing member 10 includes a cylindrical body 14 of which one end is open and the other end is closed and an inlet and outlet protrusions 13 and 15 oppositely formed on an outer circumferential surface of the fixing member 10. The inlet protrusion 13 is provided with a connection hole 11 for receiving an end of the incoming tube 300a such that the medical solution flows into the cylindrical body 14 through the incoming tube 300a. The outlet protrusion 15 is provided with a connection hole 18 for receiving an end of the outgoing tube 300b such that the medical solution flows out through the outgoing tube 300b.
[56] The closed end 14 of the cylindrical body 10 is provided with two pairs of first engagement protrusions 12 formed on its inner wall for fixing the connection member 20 inside the cylindrical aperture of the fixing member 10. The open end of the cylindrical body 10 is provided with a pair of fixation piece 19 protruded inside of the aperture for tightly fixing the adjusting member 30.
[57] Although not shown in drawings, the closed end 14 may be provided with a holder at its outer surface in order for a user to manipulate the solution flow controller 40 using the holder.
[58] The connection member 20 is provided with a circular plate 25 and a cylindrical center rod 24 of which one end is connected at the center of the circular plate 25. The
circular plate 25 is provided with a pair of second engagement protrusion 22 that are engaged with the respective pairs of first engagement protrusions 12. The circular plate 25 is also provided with at least one opening 23 in order for the medical solution to pass therethrough.
[59] The adjusting member 30 includes a circular rotary part 31 and a cylindrical flow control rod 32 of which diameter is smaller than that of the rotary part 31, the rotary part 31 and the flow control rod 32 are integrally formed. The rotary part 31 is provided with an indicator (not shown) for indicating flow amount of the medical solution which flows around thereof.
[60] The flow control rod 32 is provided with a rim 37 protruded in a longitudinal direction such that a circumferential chamber 36 is formed, a center aperture 34 formed at a center of its closed end through which the center rod 24 of the body 10 is inserted, and a plurality of grooves 35 formed along the circumferential edge of the rim 37.
[61] The grooves 35 are formed along the circumferential edge of the rim 27 with a predetermined interval and their sizes increase in a stepwise manner as advancing in a clockwise or counterclockwise direction. Accordingly, if the circular rotary part 31 rotates in the clockwise direction, one of the grooves 35 of which flow rate match to a value indicated by the indicator (not shown) faces the connection hole 11 such that the flow of the medical solution supplied through the incoming tube 300a can be regulated.
[62] Unlike the conventional adjusting device in which the flow rate of the medical solution is adjusted by controlling the aspect ratio of the cross section of the flow line, the present invention adjusts the flow rate of the medical solution in three-dimensional control by rotating a cylindrical member, resulting in achievement of precise control.
[63] FIGs. 6 and 7 are assembled sectional views illustrating how to adjust a flow rate of solution in the solution flow controller of FIG. 3.
[64] In FIG. 6, the adjusting member 30 is rotated relative to the fixing member 10 such that the medical solution flows in at minimal flow rate. This is achieved by connecting the connection hole 11 of the fixing member 10 to a groove 35 having a smallest cross section.
[65] In FIG. 7, the adjusting member 30 is rotated relative to the fixing member 10 such that the medical solution flows in at maximal flow rate. This is achieved by connecting the connection hole 11 of the fixing member 10 to a groove 35 having a largest cross section.
[66] FIG. 8 is a conceptual view illustrating a solution flow line established in the solution flow controller of FIGs. 6 and 7.
[67] The medical solution fills up the circumferential chamber 36 and then flows into the outgoing tube 300b through the passage hole 23 and the connection hole 18 of the outlet protrusion 15.
[68] As described above, the solution flow controller 40 of the solution dispensing device is configured such that the medical solution flows the flow line established in an order of the circumferential chamber 36 defined by the rim 37 of the adjusting member 30, the passage hole 23 formed on the circular plate 25 of the connection member 20, and the chamber defined the cylindrical body 14 of the fixing member 10. Accordingly, the medical solution input through the incoming tube 300a is regulated by the solution flow controller 40 and then output through the outgoing tube 300b.
[69] FIG. 9 is a diagram illustrating an indicator implemented on the rotary part of adjusting member of FIG. 3.
[70] As shown in FIG. 9, the rotary part 31 is provided with an indicator 37 having labels marked around the circumferential edge for indicating corresponding flow rates and at least one shutter 38 for blocking the medical solution. The labels indicate the flow rates from 3ml/hr to 300ml/hr. The flow rate can be selected by lml/hr in the range between 0 and 10ml, by 5ml/hr in the range between 10 and 50ml, and by 20ml/hr over 50ml, whereby it is possible to finely adjust the flow rate.
[71] The circumferential edge is serrated so as to facilitate dialing the rotary part 31. The flow rate labels marked around the circumferential edge can be changed according to the configuration of the solution flow controller 40.
[72] FIG. 10 is a dissembled sectional view illustrating a solution flow controller according to another exemplary embodiment of the present invention.
[73] As shown in FIG. 10, a solution flow controller 600 includes a fixing member 10 for interconnecting the input and output tubes, a adjusting member 30 engaged with the fixing member, a connection member 20 interposed in between the fixing member 10 and adjusting member 30, a purge button 80 which is connected to one end of the connection member 20 penetrated through a center aperture formed at a closed end of the adjusting member 30, and a spring member 90 interposed between the adjusting member 30 and the purge button 80.
[74] Referring to FIG. 10, the solution flow controller 600 is structured similar to that of
FIG. 3 except for the purge button 80 and the spring 90. That is, the solution flow controller 600 includes the fixing member 10, connection member 20, adjusting member 30, purge member 80, and spring 90.
[75] The structures and functions of the fixing member 10, connection member 20, and adjusting member 30 are identical with those of FIG. 3, detailed explanations are omitted.
[76] The spring 90 is arranged around an end part of the connection member 20 penetrated through the aperture of the adjusting member 30. The purge button 80 is elastically connected to the end part of the connection member 20 by means of the spring 90 such that the flow of the medical solution can be adjusted by pulling and
pushing the connection member 20.
[77] In more detail, the spring 90 is a coil spring wound an end part of a connection rod
24 penetrated into a chamber 60 through an aperture formed at the center of a closed end of the cylindrical adjusting member 30. The purge button 80 is fixedly connected to the end of the connection rod 24 by engaging a holding groove formed around of the end of the connection rode 24 with a holding protrusion 75 formed around on an inner wall of a spring stopper protruded at the center of the purge button 80.
[78] FIG. 11 is an assembled sectional view illustrating a solution flow controller of
FIG. 10.
[79] As shown in FIG. 11, if the purge button 80 is pressed after the solution flow controller is assembled, the connection rod 24 moves the circular plate 25 such that the circular plate 25 is separated against the flow control rod 32 of the adjusting member 30, whereby a flow passage (PSS) is established. Accordingly, the medical solution flows out to the outgoing tube 300b through the new flow passage (PSS) at a high flow rate and the air contained in the outgoing tube 300b is released.
[80] If the pressure on the purge button is released, the connection member 20 is returned by the elastic force of the spring 90 such that the preset flow link is established.
[81] FIG. 12 is a cross sectional view illustrating a solution flow controller according to another exemplary embodiment of the present invention. In this embodiment, the purge button 80 is provided with a safety device 82 for preventing the solution flow controller from being accidently reset.
[82] The safety device 82 is installed on the outer circumferential surface of the circular rotary part 31 and is provided with a stopper 83 which moves in and out between the adjusting member 30 and the purge button 80 such that the purge button 80 is not pushed when the stopper 83 is interposed between the adjusting member 30 and the purge button 80.
[83] In order to prevent the stopper 83 from being accidently removed, the stopper 83 is preferably coated with a material having a high friction coefficient such as silicon and rubber. Once the purge button 80 is locked by the safety device 82, the stopper 83 of the safety device 82 is not removed.
[84] FIG. 13 is a cross sectional view illustrating a solution flow controller according to another exemplary embodiment of the present invention. In this embodiment, a more advanced safety device 82a is introduced.
[85] Referring to FIG. 13, the safety device 82a is provided with a stopper 83a having a hole formed on its upper surface, and the purge button 80a is provided with a protrusion corresponding to the hole of the stopper 83a such that, when the stopper 83a is inserted between the adjusting member 30 and the purge button 80a, the adjusting
member 31 is not pushed or rotated.
[86] The stopper 83a of safety device 82a of FIG. 13 is thicker than that of FIG. 12. The stopper 83a blocks the movement of the purge button 80a. The protrusion of the stopper 83a is engaged with the hole of the purge button 80a so as to protect the adjusting member 31 from being rotated.
[87] In order to prevent the safety device 82a from being accidently removed, the stopper 83 is preferably coated with a material having a high friction coefficient such as silicon and rubber. Once the purge button 80a is locked by the safety device 82a, the stopper 83a of the safety device 82 is not removed.
[88] FIG. 14 is a cross sectional view illustrating a solution flow controller having a safety device according to another exemplary embodiment of the present invention.
[89] The safety device 82b of FIG. 14 is provided with a knob 84 for allowing a user to grip for rotating a stopper 83b. The safety device 82b is configured such that the stopper 83b is inserted between the bottom surface of the purge button 80 and the upper surface of the rotary part 31a by rotating the knob as much as 180 degree, thereby protecting the purge button 80 from being pushed.
[90] That is, the stopper 83b of the safety device 82b is situated in a hole formed on the surface of the rotary part 31a, and is protruded upward by rotating the knob 84 when it is required to lock the purge button 80.
[91] In order to prevent the safety device 82b from being accidently removed, the stopper 83b is preferably coated with a material having a high friction coefficient such as silicon and rubber.
[92] FIG. 15 is a cross sectional view illustrating a solution flow controller having a safety device according to another exemplary embodiment of the present invention.
[93] In FIG. 15, the safety device 82c is provided with a stopper 83c and a knob 84 for rotating the stopper 83c. The safety device 82c is configured such that the stopper 83c is situated in a hole formed on the upper surface of the rotary part 31a and is inserted between the hole formed on the lower surface of the purge button 80a and the upper surface of the rotary part 31a by rotating the knob 84 as much as 180 degree when it is required to lock the purge button 80a, whereby the purge button is restricted in rotation and reciprocal movements.
[94] In order to prevent the safety device 82c from being accidently removed, the stopper 83c is preferably coated with a material having a high friction coefficient such as silicon and rubber.
[95] Although exemplary embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that many variations and/or modifications of the basic inventive concepts herein taught which may appear to those skilled in the present art will still fall within the spirit and scope of the present
invention, as defined in the appended claims. [96] As described above, the solution dispensing device of the present invention is capable of finely adjusting the amount of medical solution injected into a person's body, thereby protecting underdose and overdose probabilities of medical solution, resulting in protection of medical accidents. [97] Also, the solution dispensing device of the present invention is advantageous since the air contained in transport tube can be easily removed by pushing a purge button, resulting in manipulation convenience.
Industrial Applicability [98] The solution dispensing device of the present invention can be applied to various types of intravenous drip apparatus. [99]
Claims
[1] A solution dispensing device including a pack containing medical solution, a solution transporting tube connected at the bottom of the pack, a flow controller disposed at the midpoint of the solution transporting tube for controlling the injection speed of the medical solution, and a needle injected into a vein of a person, the flow controller comprising: a fixing member which interconnects an incoming and an outgoing part of the solution transporting tube; an adjusting member which is coupled with the fixing member; and a connection member which is interposed between the fixing member and the adjusting member, wherein the adjusting member comprises a cylindrical flow control part inserted into the fixing member and having a plurality of passage grooves formed around a circumferential edge thereof and a circular rotary part connected to the flow control part and having an indicator, the passage grooves being formed with different cross sections, the indicator indicating currently selected passage groove.
[2] The solution dispensing device of claim 1, wherein the fixing member comprises: a cylindrical body closed at one end and open at the other end, the closed end having two pairs of fixing protrusions formed on inner wall for fixing the connection member inserted through the open end, the body and connection member defining a main chamber, the open end having a pair of projections protruded inward for fixedly holding the adjusting member; an inlet protrusion formed on an outer circumferential surface of the body and having an aperture for receiving the incoming tube; and an outlet protrusion formed on the outer circumferential surface of the body and having an aperture for receiving the outgoing tube; wherein the main chamber and apertures of the inlet and outlet protrusions establishing a flow line.
[3] The solution dispensing device of claim 2, wherein the fixing member further comprises a knob protruded downward on the outer circumferential surface of the body.
[4] The solution dispensing device of claim 2, wherein the connection member comprises: a circular plate having two protrusions each engaged with the fixing protrusions; and a connection rod integrally connected at a center of the circular plate;
wherein the circular plate is provided with at least one passage hole formed around the connection rod.
[5] The solution dispensing device of claim 4, wherein the adjusting member comprises: a rotary part having an indicator; and a cylindrical flow control rod integrally connected to the rotary part, wherein the cylindrical flow control rod having a closed end with a rim protruded in a longitudinal direction defining a circumferential chamber, the closed end being provided with an opening through which the connection rode tightly penetrates, the rim having the grooves formed along a circumferential edge and having different sizes of cross sections.
[6] The solution dispensing device of claim 5, wherein the grooves are selectively connected to the aperture of the inlet protrusion for adjusting a flow rate indicated by the indicator of which value changed by rotating the rotary part.
[7] The solution dispensing device of claim 5, wherein the rotary part contacts the fixing member by means of serration mechanism for precise rotation between the flow rates indicated by the indicator.
[8] A solution dispensing device including a pack containing medical solution, a solution transporting tube connected at the bottom of the pack, a flow controller disposed at the midpoint of the solution transporting tube for controlling the injection speed of the medical solution, and a needle injected into a vein of a person, the flow controller comprising: a fixing member which interconnects an incoming and an outgoing part of the solution transporting tube; an adjusting member which is coupled with the fixing member; a connection member which is interposed between the fixing member and the adjusting member; a purge button connected to an end of the connection member protruded through a center of the adjusting member; and an elastic member interposed between the purge button and the adjusting member for biasing the purge button in a direction.
[9] *The solution dispensing device of claim 8, wherein the adjusting member comprises: a cylindrical flow control rod having a closed end with a rim protrude in longitudinal direction, the rim having a plurality of grooves, formed along a circumferential edge, having different sizes of cross sections; and a rotary part connected to an open end of the cylindrical flow control rod and an indicator formed along a circular edge of the rotary part for indicating flow rates
of the grooves.
[10] The solution dispensing device of claim 9, wherein the fixing member comprises: a cylindrical body closed at one end and open at the other end, the closed end having two pairs of fixing protrusions formed on inner wall for fixing the connection member inserted through the open end, the body and connection member defining a main chamber, the open end having a pair of projections protruded inward for fixedly holding the adjusting member; an inlet protrusion formed on an outer circumferential surface of the body and having an aperture for receiving the incoming tube; and an outlet protrusion formed on the outer circumferential surface of the body and having an aperture for receiving the outgoing tube; wherein the main chamber and apertures of the inlet and outlet protrusions establishing a flow line.
[11] The solution dispensing device of claim 9, wherein the connection member comprises: a circular plate having two protrusions each engaged with the fixing protrusions; and a connection rod integrally connected at a center of the circular plate; wherein the circular plate is provided with at least one passage hole formed around the connection rod.
[12] The solution dispensing device of claim 9, wherein the cylindrical flow control rod comprises: a closed end having a rim protruded in a longitudinal direction defining a circumferential chamber; a center aperture formed on the closed end through which the connection rod penetrates; a plurality of grooves formed with different cross sectional sizes along a circumferential edge of the rim; wherein an end of the connection rod penetrated through the center aperture is connected at a center of the purge button, and the elastic member is interposed between the purge button and the closed end of the cylindrical control rode for biasing the purge button.
[13] The solution dispensing device of claim 12, wherein the grooves are selectively connected to the aperture of the inlet protrusion for adjusting a flow rate indicated by the indicator of which value changed by rotating the rotary part.
[14] The solution dispensing device of claim 12, wherein the connection member is biased when the purge button is pressed such that the circular plate of the
connection member separated against the end of the flow control rod for establishing drainage passage.
[15] The solution dispensing device of claim 14, wherein the purge button comprises a safety device.
[16] The solution dispensing device of claim 15, wherein the safety device comprises a stopper which is inserted between a bottom surface of the purge button and an top surface of the rotary part for preventing the purge button from being pushed.
[17] The solution dispensing device of claim 15, wherein the safety device comprises a stopper inserted between a surface of the rotary part and a seat caved in on the surface of a bottom surface of the purge button for preventing the purge button from being pushed and preventing the rotary part from rotating.
[18] The solution dispensing device of claim 15, wherein the safety device comprises: a stopper; and a holder connected to the stopper for manipulating the stopper; wherein the is inserted between a bottom surface of the purge button and an top surface of the rotary part for preventing the purge button from being pushed by rotating the holder as much as 180 degree.
[19] The solution dispensing device of claim 15, wherein the safety device comprises: a stopper; and a holder connected to the stopper for manipulating the stopper; wherein the stopper inserted between a surface of the rotary part and a seat caved in on the surface of a bottom surface of the purge button for preventing the purge button from being pushed and preventing the rotary part from rotating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2006-0139023 | 2006-12-29 | ||
| KR1020060139023A KR100749266B1 (en) | 2006-12-29 | 2006-12-29 | Device for feeding liquid medicine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008082126A1 true WO2008082126A1 (en) | 2008-07-10 |
Family
ID=38602869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2007/006788 WO2008082126A1 (en) | 2006-12-29 | 2007-12-24 | Device for feeding liquid medicine |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100749266B1 (en) |
| WO (1) | WO2008082126A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949406A (en) * | 2015-07-08 | 2018-04-20 | W&G有限公司 | Drug infusion device |
| JP2019504710A (en) * | 2016-02-12 | 2019-02-21 | ペルキュフロー， エルエルシー | Portable infusion pump and assembly for use with it |
| US10946137B2 (en) | 2014-09-30 | 2021-03-16 | Medtronic Minimed, Inc. | Hybrid ambulatory infusion pumps |
| US10967124B2 (en) | 2010-11-20 | 2021-04-06 | Medtronic Minimed, Inc. | Infusion pumps |
| US11260171B2 (en) | 2017-07-04 | 2022-03-01 | Medtronic Minimed, Inc. | Ambulatory infusion pumps and assemblies for use with same |
| US11547792B2 (en) | 2010-09-24 | 2023-01-10 | Medtronic Minimed, Inc. | Infusion pumps |
| US11684712B2 (en) | 2015-02-18 | 2023-06-27 | Medtronic Minimed, Inc. | Ambulatory infusion pumps and reservoir assemblies for use with same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101698353B1 (en) * | 2015-10-29 | 2017-01-23 | 한국생산기술연구원 | Cartridge Unit and Drug Infusion Device Having the Same |
| KR102058476B1 (en) | 2018-08-21 | 2019-12-23 | 고려대학교산학협력단 | Automatic fluid flow control device |
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| US4802506A (en) * | 1984-07-13 | 1989-02-07 | Aslanian Jerry L | Flow control device for administration of intravenous fluids |
| US20040267228A1 (en) * | 2001-09-14 | 2004-12-30 | Hiroyuki Hattori | Chemical feeding port and chemical container with the port |
| US20050065480A1 (en) * | 2001-11-29 | 2005-03-24 | Lee Sang Bin | Device for regulating flow rate of intravenous medical solution during injection |
| US6916010B2 (en) * | 2002-10-29 | 2005-07-12 | Smiths Medical Deutschland Gmbh | Regulating valve for adjusting the flow in an infusion or transfusion procedure |
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|---|---|---|---|---|
| US4802506A (en) * | 1984-07-13 | 1989-02-07 | Aslanian Jerry L | Flow control device for administration of intravenous fluids |
| US20040267228A1 (en) * | 2001-09-14 | 2004-12-30 | Hiroyuki Hattori | Chemical feeding port and chemical container with the port |
| US20050065480A1 (en) * | 2001-11-29 | 2005-03-24 | Lee Sang Bin | Device for regulating flow rate of intravenous medical solution during injection |
| US6916010B2 (en) * | 2002-10-29 | 2005-07-12 | Smiths Medical Deutschland Gmbh | Regulating valve for adjusting the flow in an infusion or transfusion procedure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11547792B2 (en) | 2010-09-24 | 2023-01-10 | Medtronic Minimed, Inc. | Infusion pumps |
| US10967124B2 (en) | 2010-11-20 | 2021-04-06 | Medtronic Minimed, Inc. | Infusion pumps |
| US10946137B2 (en) | 2014-09-30 | 2021-03-16 | Medtronic Minimed, Inc. | Hybrid ambulatory infusion pumps |
| US11684712B2 (en) | 2015-02-18 | 2023-06-27 | Medtronic Minimed, Inc. | Ambulatory infusion pumps and reservoir assemblies for use with same |
| CN107949406A (en) * | 2015-07-08 | 2018-04-20 | W&G有限公司 | Drug infusion device |
| JP2019504710A (en) * | 2016-02-12 | 2019-02-21 | ペルキュフロー， エルエルシー | Portable infusion pump and assembly for use with it |
| US10940264B2 (en) | 2016-02-12 | 2021-03-09 | Medtronic Minimed, Inc. | Ambulatory infusion pumps and assemblies for use with same |
| JP7069023B2 (en) | 2016-02-12 | 2022-05-17 | メドトロニック ミニメド インコーポレイテッド | Carrying injection pump and assembly for use with it |
| US11672909B2 (en) | 2016-02-12 | 2023-06-13 | Medtronic Minimed, Inc. | Ambulatory infusion pumps and assemblies for use with same |
| US11260171B2 (en) | 2017-07-04 | 2022-03-01 | Medtronic Minimed, Inc. | Ambulatory infusion pumps and assemblies for use with same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100749266B1 (en) | 2007-08-13 |
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