KR101715900B1 - The smart cartridge and the smart patient controlled analgesia pump - Google Patents

The smart cartridge and the smart patient controlled analgesia pump Download PDF

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Publication number
KR101715900B1
KR101715900B1 KR1020150096758A KR20150096758A KR101715900B1 KR 101715900 B1 KR101715900 B1 KR 101715900B1 KR 1020150096758 A KR1020150096758 A KR 1020150096758A KR 20150096758 A KR20150096758 A KR 20150096758A KR 101715900 B1 KR101715900 B1 KR 101715900B1
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KR
South Korea
Prior art keywords
smart
cartridge
pump
drug
pressure sensor
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Application number
KR1020150096758A
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Korean (ko)
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KR20160087325A (en
Inventor
양주석
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주식회사 유니메딕스
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Priority to KR1020150004920 priority
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Publication of KR20160087325A publication Critical patent/KR20160087325A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means 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
    • A61M5/16877Adjusting flow; Devices for setting a flow rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means 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
    • A61M5/172Means 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 electrical or electronic

Abstract

The present invention introduces smart cartridges that are used to precisely administer very small amounts of medication to a patient and smart PCA pumps that can securely and precisely mount the smart cartridges. The smart cartridge includes a silicone pad, a silicone tube, a connector, a pressure sensor housing, a front case and a rear case. The smart PCA pump is equipped with a smart cartridge according to claim 4 and is capable of controlling a very small amount of medicine supplied to a patient, and comprises a processor, a pump driving motor, a drug pump blade and a sliding cover.

Description

The present invention relates to a smart cartridge and a smart PCA pump,

The present invention relates to a PCA pump, and more particularly, to a smart cartridge optimized for administering a very small amount of drug to a patient and a smart PCA pump designed to safely and accurately mount the smart cartridge.

Patients hospitalized in hospitals should be given necessary drugs through blood vessels in addition to pills for the purpose of treatment. Since the amount of drug to be administered to the patient and the time required for administration differ from patient to patient, the nurse should be able to control it according to the prescription. The drug delivery used to administer the drug to the patient regulates the amount of drug administered to the patient by adjusting the diameter of the tube connecting the drug bag with the patient. Conventional drug delivery can approximate the amount of drug administered, but it is not possible to precisely control it. For example, administration of several hundred ml per hour to a patient is sufficient as a general drug administration unit, but a general drug administration unit can not be used when a very small amount of drug per hour is to be administered to a patient.

In particular, in the case of Patient Controlled Analgesia (PCA), which requires the administration of a very small amount of drug per hour to the patient, it should be strictly designed in consideration of the type of drug to be administered, the amount of the drug, something to do.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a smart cartridge which is used to precisely administer a very small amount of drug to a patient.

Another object of the present invention is to provide a smart PCA pump capable of safely and accurately mounting the smart cartridge.

According to an aspect of the present invention, there is provided a smart cartridge including a silicon pad, a silicone tube, a connector, a pressure sensor housing, a front case, and a rear case. The silicone tube is installed adjacent to the silicon pad and serves as a passage for the drug. The connector delivers drug externally applied to one end of the silicone tube. The pressure sensor housing is equipped with a pressure sensor film for transferring the drug delivered from the other end of the silicone tube to the outside, storing the remaining drug which can not be transferred to the outside, and sensing the variation of the stored drug have. The front case covers the front surface of the silicone pad, the silicone tube, the connector, and the pressure sensor housing, and a fixing part for fixing the front surface of the connector and the pressure sensor housing is formed on the inner surface. The rear case encloses the silicone pad, the silicone tube, the connector, and the rear surface of the pressure sensor housing, and a fixing part for fixing the connector and the rear surface of the pressure sensor housing is formed on the inner surface.

According to another aspect of the present invention, there is provided a smart PCA pump for controlling a very small amount of drug supplied to a patient by mounting the smart cartridge according to claim 4, comprising a processor, a pump driving motor, And has a sliding cover. The processor stores an initial set value for a dose and an injection time of the drug, supplies the drug to the patient according to the stored initial set value, and when the patient has requested a drug amount adjustment, Change it accordingly. The pump drive motor operates in accordance with the instruction of the processor. The drug pump blades include a plurality of blades arranged in series to perform reciprocating motion in accordance with the operation of the pump driving motor, respectively. The sliding cover includes a cartridge tray on which the cartridge fixing protrusion is mounted, in which the smart cartridge is mounted and inserted into the cartridge fixing groove of the smart cartridge, and moves along the sliding guide bar.

The smart cartridge according to the present invention is optimized for administering a very small amount of drug to a patient and the smart PCA pump according to the present invention is designed to safely and accurately mount the smart cartridge, , And it is possible to administer the very small amount of drug accurately to the patient.

1 shows the appearance of a smart PCA pump according to the present invention.
Figure 2 shows a part of the internal configuration of the Smart PCA pump.
3 is an exploded perspective view of the smart cartridge according to the present invention, viewed from the front side thereof.
4 is an exploded perspective view of the smart cartridge according to the present invention, viewed from the rear side.
Figure 5 is an assembled perspective view of the smart cartridge.
6 shows a state in which the cartridge sliding cover is partially removed from the Smart PCA pump according to the present invention.
7 shows a state in which the smart cartridge is inserted into the smart cartridge tray inside the cartridge sliding cover.
8 shows a state in which the cartridge sliding cover with the smart cartridge mounted thereon is pushed by the smart PCA pump.

In order to fully understand the present invention and the operational advantages of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings, which are provided for explaining exemplary embodiments of the present invention, and the contents of the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 shows the appearance of a smart PCA pump according to the present invention.

Referring to the front side of the smart PCA pump 100 shown in FIG. 1 (a), a handle 111 is formed at the upper part of the front side of the smart PCA pump 100, and a smart PCA pump 100 And a display panel 112 on which information related to the operation of the display panel 112 is reproduced.

Referring to the rear side of the smart PCA pump 100 shown in FIG. 1 (b), a drug back cover fastening ring 121 is provided at the upper rear portion of the smart PCA pump 100, and a lithium ion battery cover 122 are provided.

The smart PCA pump 100 is provided with various function switches 131 and a cartridge separation button 132 related to the operation of the smart PCA pump 100. A cartridge sliding cover 141 are provided. The cartridge sliding cover 141 is opened so that the shape of the tube connected to the smart cartridge 300 (Figs. 3, 370 and 380) is not deformed when the smart cartridge 300, 300 is inserted into the cartridge sliding cover 141 Two tube windows 146 and 147 are formed.

Figure 2 shows a part of the internal configuration of the Smart PCA pump.

2, the PCA pump 100 is provided with a battery house 123 in which a lithium ion battery (not shown) is mounted, a drug pump blade 124, and a pump drive motor 124 for controlling the operation of the drug pump blade 124 3, 300) by pushing the cartridge tray 126 on which the smart cartridges (Figs. 3, 300) are mounted and the cartridge release button 132 to the smart PCA pump 100 (Not shown).

The drug pump blades 124 are arranged in series and have a plurality of blades that reciprocate individually in response to the operation of the pump drive motor 125. Since the drug pump blade 124 employs a generally used one, the description of the configuration and operation characteristics will be omitted. Three cartridges (Figures 3, 300) are equipped with two tubes (Figures 3, 370, 380) through which the drug moves and each tube 370, 380 is inserted through two windows for tubes 146, The outer surfaces of the tubes 370 and 380 are prevented from being damaged by the smart PCA pump 100. [

A processor (not shown) for controlling the operation of the smart PCA pump 100 is included in the smart PCA pump 100 according to the present invention and the smart PCA pump 100 when the display panel 112 is implemented as a touch screen panel 100 may be directly instructed through the display panel 112 as well as the function switch 131. [

1 and 2 show only a part of the smart PCA pump 100 according to the present invention, and some of the configurations shown in FIGS. 1 and 2 are also used in the prior art. Describe the cartridge in detail, one of the key ideas.

3 is an exploded perspective view of the smart cartridge according to the present invention, viewed from the front side thereof.

4 is an exploded perspective view of the smart cartridge according to the present invention, viewed from the rear side.

3 and 4, the smart cartridge 300 includes a silicon pad 320, a silicone tube 330, a pressure sensor housing 340, and a connector 350, which are installed in the front case 310-F and the front case 310- And the rear case 310-B surrounds the rear case 310-B.

The front case 310-F is provided with a window 311 for a drug pump blade which provides a space into which the drug pump blade 124 is inserted into the smart cartridge 300, A pressure sensor film exposing window 312 for exposing one surface of the pressure sensor film 360 mounted on one surface of the housing 340 and a force or more than a predetermined force after the smart cartridge 300 is mounted on the smart PCA pump 100 The cartridge fixing grooves 313-1 and 313-2 are formed so as not to be detached from the smart PCA pump 100 unless they are attached. The cartridge fixing grooves 313-1 and 313-2 are fastened to the cartridge fixing protrusion 143 (see Fig. 6).

Fixing portions 315-F and 315 -B for fixing the silicon pad 320 and the silicone tube 330 are respectively installed on the inner surfaces of the front case 310-F and the rear case 310-B. In addition, a certain type of groove is formed at the edge of the inner surface of the front case 310-F and the rear case 310-B so as to fix the pressure sensor housing 340 and the connector 350. Grooves are formed in the fixing portions 315-F and 315-B to prevent the silicone tube 330 from being pressed along the path of the silicone tube 330.

Each of the blades constituting the drug pump blade 124 exerts a certain amount of pressure on the silicone tube 330 through the window 311 for the drug pump blade so that the drug stored in the drug bag (not shown) The silicon pad 320 serves to keep the pressure transmitted to the silicon tube 330 constant when each blade applies pressure to the silicon tube 330. In addition, when the medicine inside the silicone tube 330 is transferred to the direction of the patient using the blade, the phenomenon occurs that the silicone tube 330 is pushed toward the direction of the drug. In this case, the amount of the drug The silicon pads 320 are used in order to minimize such a phenomenon.

The silicone pad 320 minimizes the phenomenon that the silicone tube 330 is pushed in the direction of the drug during the supply of the drug. In order to suppress this phenomenon, a pad 320 made of a silicon material is required, and the thickness and hardness of the pad 320 are important design factors. In the present invention, the thickness and hardness of the silicon pad 320 are left unspecified and left as know-how. The silicon pad 320 also affects the resistance (load) of the pump drive motor 125, which is an operating source of the drug pump blade 124, and the amount of battery power consumption.

The silicone tube 330 is a passage through which the drug is delivered in the smart cartridge 300 and is harmless to the human body since the Smart PCA pump 100 is repeatedly pressed and restored by the blade for a sufficient number of times while the Smart PCA pump 100 is operating normally It is preferable to realize the silicon with excellent restoring force. The inner diameter / outer diameter, dimensions and hardness of the silicone tube 330 can significantly affect the flow rate of the drug, which will also remain secret in the present invention.

A tube connecting the drug bag (not shown) and the smart cartridge 300 is referred to as a first tube 370 and a tube connecting the smart cartridge 300 to a patient (not shown) is referred to as a second tube 380 ). It is preferable that the first tube 370 and the second tube 380 are made of urethane which is harmless to the human body since the drug is directly contacted.

The first tube 370 is connected to one end of the connector 350 and the silicon tube 330 is connected to the other end. In the present invention, the "A" shape is shown as one embodiment. One end of the pressure sensor housing 340 is connected to the silicone tube 330, the other end is connected to the second tube 380, and the pressure sensor film 360 is mounted on one surface. One surface of the pressure sensor film 360 is brought into contact with the pressure sensing portion 144 (see FIG. 6) through the window 312 for exposing the pressure sensor film.

The drug of the drug bag (not shown) moving to the silicone tube 330 via the first tube 370 and the connector 350 is moved to the pressure sensor housing 340 and the second tube 380 (Not shown). At this time, although the blade continues to supply the drug, the drug may not be injected into the patient for a certain reason. Here, the predetermined cause means that the drug can not proceed continuously due to the tilting or pressing of the second tube 380 connected to the patient (not shown). When such a situation occurs, surplus drug that is not injected into the patient is accumulated in the inner space of the pressure sensor housing 340. As the surplus drug accumulated in the inner space of the pressure sensor housing 340 increases, the pressure sensor housing 340, The pressure sensor film 360 mounted on one side of the pressure sensor 360 is pressed to the outside. The outer surface of the pressure sensor film 360 is in contact with a pressure sensing portion (FIGS. 6 and 144). The pressure sensing portion (FIGS. 6 and 144) monitors the condition of the pressure sensor film 360, .

Here, it is preferable to use a urethane product having a thickness of 0.3 mm and a hardness of 50 Hv. Here, the hardness unit (Hv) is the Vickers hardness, and the term min 435 Hv1 means that the Vickers hardness should be at least 435 or more.

Figure 5 is an assembled perspective view of the smart cartridge.

5 (a) is a front view of the smart cartridge 300, and FIG. 5 (b) is a rear view of the smart cartridge 300 and corresponds to assembling the components shown in FIG. 3 and FIG.

5A and 5B, the smart cartridge 300 is configured such that the medicine applied from the first tube 370 is transferred to the second tube 380 via the inner silicon tube 330 . A window 311 for the drug pump blade is formed in a part of the front surface of the cartridge 300 so that the drug pump blade 124 can be inserted. The drug pump blade 124 has a plurality of blades arranged in series, and the motion of each of the blades is determined by the operation of the pump drive motor 125. For example, the pump drive motor 125 may cause each of the plurality of blades to operate in a wavy fashion. Movement of the drug in the interior of the tube is regulated by the action of the drug pump blade 124 located proximate to the silicone tube 330 through the window 311 for the drug pump blade. The amount of injected drug and the time of injection can be set in advance, and the initial setting is stored in the built-in processor, and the processor adjusts the supply of the drug by adjusting the pump drive motor 125 according to the stored set value .

The smart cartridge 300 according to the present invention is provided with a pressure sensor housing 340 on one side of the pressure sensor housing 340 for monitoring the amount of the drug input into the patient by monitoring the pressure of the drug moving along the silicone tube 330, And the cartridge fixing grooves 313-1 and 313-2 are provided at two locations so that the smart cartridges 300 are not easily separated from the cartridge tray 126. [ The smart cartridge 300 is inserted and used in the cartridge tray 126. The cartridge fixing projections 143 (see FIG. 6) formed in the cartridge tray 126 are inserted into the cartridge fixing grooves 313-1 and 313-2 Thereby preventing the smart cartridge 300 from being detached or separated from the cartridge tray 126 unless a certain amount of force is applied thereto.

The smart cartridges 300 according to the present invention are formed in the form of a solid solid module so that the number of mistakes that may occur when a user mounts the smart cartridges 300 to the smart PCA pump 100 can be minimized.

Hereinafter, the process of mounting the smart cartridge 300 according to the present invention on the smart PCA pump 100 according to the present invention will be described.

6 shows a state in which the cartridge sliding cover is partially removed from the Smart PCA pump according to the present invention.

6, when the user pushes the cartridge detachment button 132 installed on the side of the smart PCA pump 100, the spring 127 is operated so that the cartridge sliding cover 141 contacts the smart PCA pump 100, Lt; / RTI > At this time, the entire cartridge slide cover 141 is not separated from the smart PCA pump 100, but a part thereof is separated and the remaining part is connected to the smart PCA pump 100. [ The cartridge sliding cover 141 moves along the sliding guide bar 145.

A pressure sensing part 144 is formed on the rear surface of the smart PCA pump 100 to assist in measuring the pressure of the tube in contact with the pressure sensor film 360 of the smart cartridge 300. In the cartridge tray 126, A cartridge fixing projection 143 to be inserted into the fixing grooves 313-1 and 313-2 is formed.

The basic operation for mounting the smart cartridge 300 to the smart PCA pump 100 has been accomplished by detaching a portion of the cartridge sliding cover 141 from the smart PCA pump 100 as shown in Fig.

7 shows a state in which the smart cartridge is inserted into the smart cartridge tray inside the cartridge sliding cover.

7, the next step for mounting the smart cartridge 300 to the smart PCA pump 100 is to place the smart cartridge 300 inside the cartridge sliding cover 141 which is partly separated from the PCA pump 100 .

The portion in which the smart cartridge 300 is actually mounted is the cartridge tray 126 and only the cartridge 300 is inserted into the cartridge tray 300 until the cartridge fixing protrusion 143 is inserted into the cartridge fixing grooves 313-1, (Not shown). When the cartridge securing protrusion 143 is inserted into the cartridge securing grooves 313-1. 313-2, it is common for the user or nurse to feel the sound as well as to convey the sensation, so that the smart cartridge 300 The nurse can easily confirm whether or not the cartridge tray 126 is correctly mounted.

7, even if the smart cartridge 300 is mounted on the cartridge tray 126, the pressure sensing part 144 provided on the smart PCA pump 100 is not connected to the pressure sensor film 360 are not in contact with each other.

8 shows a state in which the cartridge sliding cover with the smart cartridge mounted thereon is pushed by the smart PCA pump.

Referring to FIG. 8, the cartridge sliding cover 141 is pushed up and fixed to the lower portion of the smart PCA pump 100. The configuration in which the cartridge sliding cover 141 is fixed to the smart PCA pump 100 and the configuration in which the fixing is released by the operation of the cartridge separation button 132 can be easily implemented by anyone skilled in the art, It is not described in detail here.

When the pressure sensing part 144 provided on the smart PCA pump 100 normally contacts the pressure sensor film 360, the pressure sensor film 360 can detect the abnormality of the drug via the three tubes 370, 330 and 380 Or the like.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

100: Smart PCA pump
111: handle 112: display panel
121: Drug bag cover fastening ring 122: Lithium ion battery cover
123: Battery house 124: Drug pump blade
125: Pump drive motor 126: Cartridge tray
127: spring 131: function switch
132: Cartridge removal button
141: cartridge sliding cover 143: cartridge fixing projection
144: Pressure sensing part 146, 147: Window tube
300: Smart cartridges
310-F: Front case
311: Window for drug pump blades
312: Pressure sensor film window
313-1, 313-2: cartridge fixing groove
310-B: rear case
320: Silicone pad
330: Silicone tube
340: Pressure sensor housing
350: Connector
360: Pressure sensor film
370: first tube
380: second tube

Claims (8)

  1. Silicon pads;
    A silicone tube disposed adjacent to the silicon pad and serving as a passage for the drug;
    A connector for transferring an externally applied drug to one end of the silicone tube;
    A pressure sensor housing having a pressure sensor film for transferring a drug delivered from the other end of the silicone tube to the outside, storing a remaining drug which can not be transferred to the outside, and sensing a variation of the stored drug;
    A front case covering the front surface of the silicone pad, the silicone tube, the connector, and the pressure sensor housing, the fixing part fixing the front surface of the connector and the pressure sensor housing; And
    A rear case surrounding the silicone pad, the silicone tube, the connector, and the rear surface of the pressure sensor housing, the fixing case fixing the rear surface of the pressure sensor housing to the connector;
    Wherein the cartridge comprises a cartridge.
  2. The front case according to claim 1,
    A window for a drug pump blade into which a plurality of blades for applying a constant pressure to the silicone tube are inserted;
    A pressure sensor film exposing window for exposing the pressure sensor film to the outside;
    A cartridge fixing groove;
    A pressure sensor housing front fixing part fixing the front surface of the pressure sensor housing; And
    A connector front fixing part for fixing the front face of the connector;
    Wherein the cartridge comprises a cartridge.
  3. The rear case according to claim 2,
    A pressure sensor housing rear fixing part fixing the rear surface of the pressure sensor housing; And
    A connector rear fixing part for fixing the rear surface of the connector;
    Wherein the cartridge comprises a cartridge.
  4. The pressure sensor film according to claim 3,
    A thickness of 0.3 mm and a hardness of 50 Hv.
  5. A smart cartridge as set forth in claim 4, which is capable of controlling a very small amount of drug supplied to a patient,
    Stores an initial set value of a dose and an injection time of the drug, supplies the drug to the patient according to the stored initial set value, and changes the initial set value according to a preset program when there is a request to adjust the drug amount of the patient A processor;
    A pump drive motor operating in accordance with instructions from the processor;
    A drug pump blade including a plurality of blades arranged in series to perform reciprocating motion in accordance with the operation of the pump driving motor, respectively; And
    A sliding cover on which the smart cartridge is mounted and which moves along the sliding guide bar;
    Wherein the pump comprises a pump.
  6. The smart PCA pump according to claim 5,
    A first tube connecting the connector and the drug bag; And
    A second tube connecting the pressure sensor housing and the patient;
    Further comprising: a pump for supplying the pump to the pump;
  7. The sliding cover according to claim 6,
    A tube window for preventing the shape of the first tube and the second tube from being deformed when the smart cartridge is mounted on the Smart PCA pump;
    Further comprising a smart PCA pump.
  8. The smart PCA pump according to claim 5,
    A function switch for inputting the initial setting value or for requesting the patient to adjust the medicine amount;
    A cartridge release button for releasing a portion of the sliding cover from the smart PCA pump; And
    A spring for applying a constant force to the sliding cover so that a part of the sliding cover is separated from the smart PCA pump when the cartridge separating button is pressed;
    Further comprising: a pump for supplying the pump to the pump;
KR1020150096758A 2015-01-13 2015-07-07 The smart cartridge and the smart patient controlled analgesia pump KR101715900B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR20150004920 2015-01-13
KR1020150004920 2015-01-13

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KR101715900B1 true KR101715900B1 (en) 2017-03-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190034923A (en) 2017-09-25 2019-04-03 주식회사 유니메딕스 Adjustable bolus injector
KR20190041987A (en) 2019-04-12 2019-04-23 주식회사 유니메딕스 Adjustable bolus injector

Citations (2)

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Publication number Priority date Publication date Assignee Title
US20020147423A1 (en) 1997-02-14 2002-10-10 Nxstage Medical Inc. Systems and methods for performing blood processing and/or fluid exchange procedures
US20080145249A1 (en) 2005-03-17 2008-06-19 Smisson-Cartledge Biomedical Llc Dynamic Range Motor For A Pump Device

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Publication number Priority date Publication date Assignee Title
JPH0558477B2 (en) * 1988-04-06 1993-08-26 Sumitomo Metal Ind
US5564404A (en) * 1994-09-20 1996-10-15 Nissan Motor Co., Ltd. Air/fuel ratio control system of internal combustion engine

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US20020147423A1 (en) 1997-02-14 2002-10-10 Nxstage Medical Inc. Systems and methods for performing blood processing and/or fluid exchange procedures
US20080145249A1 (en) 2005-03-17 2008-06-19 Smisson-Cartledge Biomedical Llc Dynamic Range Motor For A Pump Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190034923A (en) 2017-09-25 2019-04-03 주식회사 유니메딕스 Adjustable bolus injector
KR20190041987A (en) 2019-04-12 2019-04-23 주식회사 유니메딕스 Adjustable bolus injector

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