WO2021060258A1 - Pompe à seringue - Google Patents

Pompe à seringue Download PDF

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Publication number
WO2021060258A1
WO2021060258A1 PCT/JP2020/035741 JP2020035741W WO2021060258A1 WO 2021060258 A1 WO2021060258 A1 WO 2021060258A1 JP 2020035741 W JP2020035741 W JP 2020035741W WO 2021060258 A1 WO2021060258 A1 WO 2021060258A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamp
holding
tube
accommodating portion
receiving
Prior art date
Application number
PCT/JP2020/035741
Other languages
English (en)
Japanese (ja)
Inventor
拓矢 小林
元晴 羽畑
Original Assignee
ニプロ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ニプロ株式会社 filed Critical ニプロ株式会社
Priority to JP2021548921A priority Critical patent/JP7435614B2/ja
Publication of WO2021060258A1 publication Critical patent/WO2021060258A1/fr

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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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • 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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons

Definitions

  • the present invention relates to a syringe pump.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2019-10502
  • a syringe pump comprising.
  • the opening / closing unit has a tube clip, a base, and a cover.
  • the tube clip is a member mainly for preventing siphoning.
  • the tube clip can hold the tube in a state where the tube is inserted through the tube clip.
  • the tube clip can be switched between a posture in which the flow path of the tube is closed and a posture in which the flow path of the tube is opened.
  • the base is connected to the pump body.
  • the base has a groove in which the tube is arranged, a recess in which the tube clip is arranged, and a wall portion for preventing the tube clip from falling off.
  • the cover is rotatably provided with respect to the base.
  • the cover in the closed state, houses the tube clip along with the base. When the cover is closed, a space is secured between the base and the cover where the tube is located.
  • the tube is placed in a clamp held in an open position to prevent plastic deformation of the tube due to the tube flow path being continuously blocked by the clamp. It is often packaged in the inserted state.
  • the tube and the tube clip are taken out from the packaging container by a medical worker (a state in which the flow path of the tube is not blocked by the tube clip). If the is mounted in the recess of the base, there is a concern that siphoning may occur.
  • An object of the present invention is to provide a syringe pump capable of suppressing assembly of a tube and a clamp in a state where the flow path of the tube is open to a clamp accommodating portion accommodating a clamp.
  • a syringe pump is a clamp that switches between opening and closing of a flow path in a tube connected to the syringe and a pump body having a drive unit that drives the syringe, and is a base that holds the tube. And, which is connected to the base and can be displaced between the holding posture of holding the tube together with the base and the opening posture of opening the flow path so that the flow path in the tube is closed.
  • the clamp holding portion comprises a piece and a clamp holding portion for holding the clamp having the clamp, and the clamp holding portion is capable of accommodating the clamp and is held in the base in an orthogonal direction orthogonal to the extending direction of the tube.
  • the clamp accommodating portion having a shape that opens on one side and the tube held by the clamp can be accommodated and the clamp is assembled to the clamp accommodating portion through the opening of the clamp accommodating portion.
  • the overlapping portion allows the clamp to pass through the clamp accommodating portion along the assembly direction when the holding piece is in the holding posture, and the overlapping portion has a portion. When is in the open position, the clamp is restricted from being assembled to the clamp accommodating portion by overlapping a part of the clamp in the assembling direction.
  • a syringe pump capable of suppressing the assembly of the tube and the clamp in a state where the flow path of the tube is open to the clamp holding portion that holds the clamp.
  • FIG. 1 It is a perspective view which shows typically the whole structure of the syringe pump of 1st Embodiment of this invention, and the syringe attached to the syringe pump.
  • a perspective view of a clamp It is a top view of a clamp. It is a perspective view of the clamp holding part and the clamp held by the clamp holding part. It is a perspective view which shows the state which the cover was removed from the clamp holding part shown in FIG. It is a top view which shows the positional relationship between the clamp and the overlap part when the clamp in an open posture is about to be assembled to a clamp accommodating part.
  • FIG. 1 is a perspective view schematically showing an overall configuration of a syringe pump according to the first embodiment of the present invention and a syringe mounted on the syringe pump.
  • the syringe 10 has a barrel 12 capable of accommodating the chemical solution and a plunger 14 capable of pushing out the chemical solution from the barrel 12.
  • a tube 20 is connected to the tip of the barrel 12.
  • a pressed portion 15 is formed at the rear end portion of the plunger 14.
  • the syringe pump 40 of the present embodiment has a pump main body 100 and a clamp holding portion 200.
  • the pump body 100 is a device capable of accurately administering a small amount of chemical solution from the syringe 10 to the tube 20.
  • the pump main body 100 includes a barrel receiving unit 110, a plunger receiving unit 120, a driving unit 130, a switching mechanism 140, and a control unit 150.
  • the barrel receiving portion 110 is a portion that receives the barrel 12.
  • the barrel receiving portion 110 is configured so that the barrel 12 can be detected.
  • the barrel receiving portion 110 may detect the barrel 12 by a sensor that detects that the barrel 12 has been pressed.
  • the plunger receiving unit 120 is a portion that receives the plunger 14.
  • the plunger receiving unit 120 is configured to be able to detect the plunger 14.
  • the plunger receiving portion 120 may detect the plunger 14 by a sensor that detects that the plunger 14 has been pressed by the pressed portion 15.
  • the drive unit 130 drives the syringe 10.
  • the drive unit 130 pushes the plunger 14 against the barrel 12 in a state where the barrel 12 is received by the barrel receiving unit 110 and the plunger 14 is received by the plunger receiving unit 120.
  • the control unit 150 controls the switching mechanism 140.
  • the switching mechanism 140 and the control unit 150 will be described later.
  • the clamp holding portion 200 is a portion that holds the clamp 30. First, the clamp 30 will be described with reference to FIGS. 2 and 3.
  • the clamp 30 is a member that switches the opening and closing of the flow path in the tube 20.
  • the clamp 30 has a base 31 and a holding piece 36.
  • the base 31 is a portion that holds the tube 20.
  • the base 31 has a first base portion 32 and a first sandwiching protrusion 33.
  • the first base portion 32 is formed in a plate shape and has a curved shape.
  • An insertion hole 32h through which the tube 20 is inserted is formed in the first base portion 32.
  • the first base 32 holds the tube 20 in a state where the tube 20 is inserted into the insertion hole 32h.
  • the tip of the first base 32 constitutes a locking portion 32a.
  • the first holding protrusion 33 is a portion that holds the tube 20.
  • the first holding protrusion 33 is connected to the inner surface of the first base portion 32.
  • the holding piece 36 is connected to the base 31.
  • the holding piece 36 has a holding posture in which the tube 20 is held together with the base 31 so that the flow path in the tube 20 is blocked, and an open posture (a posture shown in FIG. 2) in which the flow path in the tube 20 is opened. Can be displaced between.
  • the sandwiching piece 36 has a second base portion 37 and a second sandwiching protrusion 38.
  • the second base 37 is connected to one end of the first base 32 (the end opposite to the locking portion 32a).
  • the tip of the second base 37 constitutes a locked portion 37a that engages with the locking portion 32a.
  • the second holding protrusion 38 is connected to the inner surface of the second base portion 37.
  • the second holding protrusion 38 is a portion that holds the tube 20 together with the first holding protrusion 33.
  • the holding piece 36 is in the holding posture.
  • the first holding protrusion 33 and the second holding protrusion 38 block the flow path in the tube 20.
  • the holding piece 36 is in the open posture.
  • the first holding protrusion 33 and the second holding protrusion 38 open the flow path in the tube 20.
  • the clamp holding portion 200 is connected to the pump body 100.
  • the clamp holding portion 200 allows the clamp 30 in the holding position of the holding piece 36 to be assembled to the clamp holding portion 200, while the clamp holding portion 200 of the clamp 30 in the state in which the holding piece 36 is in the open position. Regulate the assembly to.
  • the clamp holding portion 200 has a clamp accommodating portion 202, a tube accommodating portion 204, an overlapping portion 221 and a finger avoiding portion 206.
  • the clamp accommodating portion 202 is a portion accommodating the clamp 30.
  • the clamp accommodating portion 202 has a shape that opens on one side (upper side in FIG. 4) of the orthogonal direction (vertical direction in FIG. 4) orthogonal to the extending direction of the tube 20 held by the base 31.
  • the tube accommodating portion 204 is a portion for accommodating the tube 20 held by the clamp 30.
  • the tube accommodating portion 204 allows the tube 20 held by the clamp 30 to pass along the assembly direction (downward in FIG. 4) for assembling the clamp 30 to the clamp accommodating portion 202 through the opening of the clamp accommodating portion 202. It has a shape that opens on the same side as the clamp accommodating portion 202.
  • the tube accommodating portion 204 is connected to the clamp accommodating portion 202.
  • the tube accommodating portion 204 is provided on both sides of the clamp accommodating portion 202 in the extending direction (hereinafter, referred to as the first direction) of the tube 20 held by the clamp 30 accommodated in the clamp accommodating portion 202.
  • the overlapping portion 221 overlaps a part of the clamp accommodating portion 202 in the assembling direction (the paper surface depth direction in FIG. 6). As shown in FIG. 6, when the holding piece 36 is in the open posture, the overlapping portion 221 overlaps a part of the clamp 30 (holding piece 36) in the assembling direction to reach the clamp accommodating portion 202 of the clamp 30. Regulate the assembly of. On the other hand, as shown in FIG. 7, the overlapping portion 221 allows the clamp 30 to pass through the clamp accommodating portion 202 along the assembling direction when the holding piece 36 is in the holding posture. As shown in FIG. 6, the overlapping portion 221 is provided in a second direction (up and down in FIG. 6) orthogonal to both the assembling direction and the first direction from the path extending the tube accommodating portion 204 along the first direction. It is evacuated in the direction).
  • the finger avoidance portion 206 is a portion for avoiding the fingers of the medical staff when the clamp 30 in the holding posture is assembled to the clamp accommodating portion 202 along the assembling direction.
  • the finger avoidance portion 206 is provided at a position where the clamp accommodating portion 202 is sandwiched in the second direction.
  • the finger avoidance portion 206 provided on one side (upper side in FIG. 6) of the clamp accommodating portion 202 in the second direction is adjacent to the overlapping portion 221 in the first direction.
  • the clamp holding portion 200 has a case 210 and a cover 220.
  • the case 210 has the clamp accommodating portion 202, the receiving groove 214, and the finger relief portion 216.
  • the receiving groove 214 is a portion that receives the tube 20 held by the clamp 30 housed in the clamp accommodating portion 202.
  • the finger escape portion 216 has a shape that receives the fingers of a medical worker.
  • the finger relief portion 216 is provided at a position where the clamp accommodating portion 202 is sandwiched in the second direction.
  • the cover 220 is removable from the case 210.
  • the cover 220 has the overlapping portion 221 and the slit 224, and the finger relief portion 226.
  • the slit 224 allows the tube 20 to pass along the assembly direction.
  • the slit 224 is provided at a position overlapping the receiving groove 214 in the assembly direction.
  • the slit 224 and the receiving groove 214 constitute the tube accommodating portion 204.
  • the cover 220 is divided into a member including the overlapping portion 221 and a member not including the overlapping portion 221 by the slit 224.
  • the finger relief portion 226 is provided at a position overlapping the finger relief portion 216 in the assembly direction, and has a shape for receiving the fingers of a medical worker.
  • the finger escape portion 226 and the finger escape portion 216 form the finger avoidance portion 206.
  • the member of the cover 220 including the overlapping portion 221 is provided with a notch 228 that allows the locking portion 32a to pass in the assembling direction.
  • the notch 228 is provided on the side opposite to the side where the finger relief portion 226 is provided with reference to the overlapping portion 221 in the first direction.
  • the switching mechanism 140 can switch the clamp 30 between a holding posture and an open posture.
  • the switching mechanism 140 includes a cam 142 and a motor 144 (see FIGS. 1 and 5). Since the configurations of the cam 142 and the motor 144 are the same as those described in Japanese Patent Application Laid-Open No. 2019-10502, the description thereof will be simplified. That is, the cam 142 is rotated around an axis parallel to the assembly direction (paper surface depth direction in FIG. 8) from the state shown in FIG. 8, so that the locked portion 37a is engaged as shown in FIG. The holding piece 36 is pressed so as to engage with the stop portion 32a. The cam 142 further rotates around the axis from the state shown in FIG. 9 to press the locking portion 32a so that the locked portion 37a disengages from the locking portion 32a. The motor 144 drives the cam 142 so that the cam 142 rotates about the axis.
  • the control unit 150 drives the switching mechanism 140 so that the clamp 30 is in the open posture when the barrel receiving unit 110 detects the barrel 12 and the plunger receiving unit 120 detects the plunger 14. Specifically, when the control unit 150 receives a signal indicating that the barrel 12 is installed from the barrel receiving unit 110 and receives a signal indicating that the plunger 14 is installed from the plunger receiving unit 120. , The motor 144 is driven so that the locking portion 32a is pushed by the cam 142. As a result, the clamp 30 is in the open posture as shown in FIG.
  • the clamp 30 when the clamp 30 is in the holding posture, the clamp 30 is allowed to be assembled to the clamp accommodating portion 202, while when the clamp 30 is in the open posture. As a part of the clamp 30 interferes with the overlapping portion 221, the assembly of the clamp 30 to the clamp accommodating portion 202 is restricted. Therefore, it is possible to prevent the tube 20 and the clamp 30 from being assembled to the clamp holding portion 200 in a state where the flow path of the tube 20 is open (a state in which the clamp 30 is in the open posture). Therefore, the occurrence of siphoning is more reliably suppressed.
  • the clamp holding portion 200 has the finger avoiding portion 206, the medical worker can easily assemble the clamp 30 to the clamp accommodating portion 202.
  • the clamp 30 is automatically opened when it is detected that the barrel 12 and the plunger 14 are attached to the pump body 100. Can be switched to.
  • the case 210 has a clamp receiving portion 212 that receives the clamp 30.
  • the cover 220 has the overlapping portion 221 and the tube accommodating portion 204, the finger avoiding portion 206, and the holding wall 222.
  • the holding wall 222 is a portion that holds the position of the clamp 30 received by the clamp receiving portion 212.
  • the holding wall 222 is provided around the clamp 30.
  • the holding wall 222 constitutes the clamp accommodating portion 202 together with the clamp receiving portion 212.
  • the cover 220 of this embodiment a portion having the overlapping portion 221 and a portion not having the overlapping portion 221 are connected. Therefore, the cover 220 can be easily handled.
  • the clamp holding portion 200 may not be connected to the pump main body 100 and may be independent of the pump main body 100.
  • the syringe pump of the above embodiment is a clamp that switches between opening and closing of a flow path in a tube connected to the syringe and a pump body having a drive unit that drives the syringe, and has a base that holds the tube and the base.
  • a clamp piece that is connected to and is displaceable between a clamp posture that clamps the tube together with the base so that the flow path in the tube is blocked and an open posture that opens the flow path.
  • the clamp holding portion includes a clamp holding portion for holding the clamp, and the clamp holding portion opens on one side in a direction orthogonal to the extending direction of the tube held on the base and capable of accommodating the clamp.
  • the clamp accommodating portion having a shape and the tube held by the clamp can be accommodated, and the clamp is held by the clamp along the assembling direction in which the clamp is assembled to the clamp accommodating portion through the opening of the clamp accommodating portion.
  • the overlapping portion allows the clamp to pass through the clamp accommodating portion along the assembly direction when the holding piece is in the holding posture, and the holding piece is in the open posture. At this time, the assembly of the clamp to the clamp accommodating portion is restricted by overlapping a part of the clamp in the assembly direction.
  • the clamp holding portion has a case having the clamp accommodating portion and a cover including the overlapping portion and detachable from the case, and the case is accommodated in the clamp accommodating portion.
  • the cover has a receiving groove for receiving the tube held by the clamp, the cover allows the tube to pass along the assembling direction, and the slit forming the tube accommodating portion together with the receiving groove. May have.
  • the clamp holding portion includes a case having a clamp receiving portion for receiving the clamp, a cover including the overlapping portion and the tube accommodating portion, and a cover that can be attached to and detached from the case.
  • a holding wall that holds the position of the clamp received by the clamp receiving portion and may have the holding wall that constitutes the clamp accommodating portion together with the clamp receiving portion.
  • the clamp holding portion further has a finger avoiding portion that avoids the fingers of the medical worker when the medical worker assembles the clamp in the holding posture to the clamp accommodating portion along the assembling direction. Is preferable.
  • the medical staff can easily assemble the clamp to the clamp accommodating portion.
  • the syringe has a barrel having a flange and a plunger capable of pushing out a chemical solution from the inside of the barrel
  • the pump main body has a barrel receiving portion for receiving the barrel and a plunger receiving for receiving the plunger.
  • a unit, a switching mechanism capable of switching the clamp between the holding posture and the open posture, and a control unit are further provided, and the barrel receiving portion is configured to be able to detect the barrel, and the plunger.
  • the receiving unit is configured to be able to detect the plunger, and in the control unit, when the barrel receiving unit detects the barrel and the plunger receiving unit detects the plunger, the clamp detects the plunger. It is preferable to drive the switching mechanism so as to be in the open posture.

Abstract

L'invention concerne une pompe à seringue qui est pourvue d'un corps de pompe et d'une partie de maintien à pince. La partie de maintien à pince comprend une section de logement de pince, une section de logement de tube et une section de chevauchement qui chevauche une portion de la section de logement à pince dans une direction d'assemblage. La section de chevauchement permet le passage d'une pince vers la section de logement de pince le long de la direction d'assemblage lorsqu'une pièce de maintien se trouve dans une attitude de maintien, et restreint l'assemblage de la pince à la section de logement de pince par chevauchement avec une portion de la pince dans la direction d'assemblage lorsque la pièce de maintien se trouve dans une position ouverte.
PCT/JP2020/035741 2019-09-27 2020-09-23 Pompe à seringue WO2021060258A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021548921A JP7435614B2 (ja) 2019-09-27 2020-09-23 シリンジポンプ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-176984 2019-09-27
JP2019176984 2019-09-27

Publications (1)

Publication Number Publication Date
WO2021060258A1 true WO2021060258A1 (fr) 2021-04-01

Family

ID=75165815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/035741 WO2021060258A1 (fr) 2019-09-27 2020-09-23 Pompe à seringue

Country Status (2)

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JP (1) JP7435614B2 (fr)
WO (1) WO2021060258A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050020978A1 (en) * 2001-11-15 2005-01-27 Marc Vollenweider Safety device for an infusion pump
JP2006141988A (ja) * 2004-10-19 2006-06-08 Terumo Corp 輸液装置
US20140234144A1 (en) * 2011-11-16 2014-08-21 Fresenius Kabi Deutschland Gmbh Tube pump, tube clamp, perfusion set and system comprising a tube pump and a tube clamp
WO2018181810A1 (fr) * 2017-03-29 2018-10-04 テルモ株式会社 Pompe à seringue
JP2019010502A (ja) * 2017-06-29 2019-01-24 ニプロ株式会社 シリンジポンプ
JP2019022609A (ja) * 2017-07-24 2019-02-14 テルモ株式会社 クランプ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050020978A1 (en) * 2001-11-15 2005-01-27 Marc Vollenweider Safety device for an infusion pump
JP2006141988A (ja) * 2004-10-19 2006-06-08 Terumo Corp 輸液装置
US20140234144A1 (en) * 2011-11-16 2014-08-21 Fresenius Kabi Deutschland Gmbh Tube pump, tube clamp, perfusion set and system comprising a tube pump and a tube clamp
WO2018181810A1 (fr) * 2017-03-29 2018-10-04 テルモ株式会社 Pompe à seringue
JP2019010502A (ja) * 2017-06-29 2019-01-24 ニプロ株式会社 シリンジポンプ
JP2019022609A (ja) * 2017-07-24 2019-02-14 テルモ株式会社 クランプ

Also Published As

Publication number Publication date
JPWO2021060258A1 (fr) 2021-04-01
JP7435614B2 (ja) 2024-02-21

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