WO2006026904A1 - Dispositif de perfusion sur jetable - Google Patents

Dispositif de perfusion sur jetable Download PDF

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Publication number
WO2006026904A1
WO2006026904A1 PCT/CN2005/000984 CN2005000984W WO2006026904A1 WO 2006026904 A1 WO2006026904 A1 WO 2006026904A1 CN 2005000984 W CN2005000984 W CN 2005000984W WO 2006026904 A1 WO2006026904 A1 WO 2006026904A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
floating body
infusion set
disposed
set according
Prior art date
Application number
PCT/CN2005/000984
Other languages
English (en)
Chinese (zh)
Inventor
Jihan Cai
Original Assignee
Jihan Cai
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
Priority claimed from CN 200420082692 external-priority patent/CN2732258Y/zh
Priority claimed from CN 200420082693 external-priority patent/CN2732263Y/zh
Application filed by Jihan Cai filed Critical Jihan Cai
Priority to CNB2005800301949A priority Critical patent/CN100534543C/zh
Publication of WO2006026904A1 publication Critical patent/WO2006026904A1/fr

Links

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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/40—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 with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
    • 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
    • A61M5/1411—Drip chambers
    • 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
    • A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • 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
    • A61M5/16886—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 for measuring fluid flow rate, i.e. flowmeters
    • A61M5/1689—Drip counters
    • 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
    • A61M39/286—Wedge clamps, e.g. roller clamps with inclined guides
    • A61M39/287—Wedge formed by a slot having varying width, e.g. slide clamps

Definitions

  • the invention relates to an infusion device for intravenous infusion to a clinical patient in the field of medical and health, and more particularly to a mechanical control flow which can automatically close an infusion line during intravenous infusion to prevent air from entering a patient.
  • a safe infusion set to achieve infusion safety.
  • the object of the present invention is to provide a mechanically controlled flow disposable safety infusion device which automatically closes the infusion line when the infusion bottle is switched and near the end of the infusion to prevent air from entering the patient to achieve infusion safety.
  • the present invention provides a mechanically controlled flow disposable safety infusion device, comprising a bottle needle, a drip bucket, a hose, a liquid medicine filter and an intravenous infusion needle arranged in sequence, wherein the hose is in the hose
  • the jacket is provided with a flow regulator for controlling the flow, wherein at least a safety mechanism is provided in the dripper and/or between the dripper and the hose, the safety mechanism is closed when the infusion bottle and/or the infusion is nearly finished Prevent air from entering the hose and into the patient.
  • the safety mechanism comprises a casing and a floating body located in the casing, and the floating body is raised and lowered as the chemical liquid in the casing increases or decreases.
  • the housing of the safety mechanism is integrally formed with the dropper or separately.
  • the housing includes at least one chemical liquid inlet portion and at least one chemical liquid outlet portion.
  • at least one limiting member is disposed in the housing to limit the lifting range of the floating body in the housing.
  • At least a sealing member is disposed between the medical liquid outlet portion in the casing and the floating body.
  • the floating body is embedded in the housing and is not rotatable relative to the housing.
  • At least one groove/bump is disposed in the housing, and at least one protrusion/groove corresponding to the groove/bump is disposed on the floating body, by means of the cooperation of the protrusion and the groove
  • the floating body can be embedded in the housing in a movable manner up and down.
  • the lower end of the floating body is provided with a sealing member, and the sealing member is a tapered soft cone.
  • the liquid medicine outlet portion of the casing is provided with a sealing member, and a through hole is arranged in the middle of the sealing member, and the floating body is placed above the sealing member.
  • the middle of the seal is thinner than the circumference.
  • the lower end of the housing is provided with a connecting member, and the connecting member has a through hole for circulating the chemical liquid, and the connecting member is protruded from the liquid medicine outlet portion of the housing.
  • the connecting member is integrally formed with the housing.
  • a sealing film is disposed under the floating body.
  • a concave portion is disposed between the floating body and the sealing film.
  • the sealing film and the concave portion are integrally formed to form a closet.
  • the distance between the limiting member and the sealing member is about 1.5 times or more of the height of the floating body
  • an alarm device is disposed outside the housing, the alarm device includes a photosensitive clip, and the photosensitive device A semi-circular symmetrical position of the clips respectively fixes a spotlight and a photosensitive tube, and the spotlight and the photosensitive tube are connected to an alarm box, the alarm box is powered on, and the call switch of the patient bed is turned on.
  • the safety infusion device further comprises a medicinal member which is arranged on the hose, and two sealing members having a through hole in the middle are arranged in parallel at the chemical liquid outlet portion of the casing, the floating body It is freely rotatable between the two seals.
  • an infusion catheter may be disposed between the bottle needle and the dripper.
  • the mechanical flow control one-time use safety infusion device of the present invention the floating body therein rises and falls with the increase and decrease of the liquid medicine in the housing, and when the liquid medicine is not dropped, the floating body will The liquid medicine outlet of the housing is closed to prevent air from entering the hose, thereby effectively ensuring the safety of the infusion. Therefore, the mechanical flow control single-use safety infusion device of the invention does not require the patient and the nursing staff to pay close attention to the end of the infusion.
  • the infusion set can automatically close the infusion line by means of the floating body in the safety mechanism to prevent air bubbles from entering. The patient's veins, while greatly reducing the stress of the medical staff.
  • Embodiment 1A is a schematic view showing the structure of Embodiment 1 of a mechanically controlled flow infusion safety inhaler according to the present invention
  • FIGS. 1B and 1C are schematic structural views showing other different floating bodies in Embodiment 1 of the mechanical flow control single-use safety infusion device of the present invention.
  • Figure ID is a schematic view showing the structure of Embodiment 2 of the mechanical flow control single-use safety infusion device of the present invention
  • FIG. 2A is a schematic view showing the structure of the casing and the dripper of the embodiment 3 of the mechanical flow control single-use safety infusion device of the present invention
  • 2B is a schematic structural view showing another form of the housing and the dripper of the embodiment 3 of the mechanical flow control single-use safety infusion device of the present invention
  • 2C is a schematic structural view showing the housing and the dripper of the embodiment 4 of the mechanical flow control single-use safety infusion device of the present invention
  • FIG. 3 is a schematic structural view showing another form of the housing and the drip chamber of the embodiment 4 of the mechanical flow control single-use safety infusion device of the present invention
  • FIG. 4 is a schematic structural view of Embodiment 5 of a mechanically controlled flow disposable safety infusion device according to the present invention
  • FIG. 5 is a schematic structural view of Embodiment 6 of a mechanically controlled flow disposable safety infusion device according to the present invention
  • Embodiment 6 is a schematic structural view showing still another form of Embodiment 6 of the mechanical flow control single-use safety infusion device of the present invention.
  • FIG. 8 is a schematic structural view showing still another form of Embodiment 6 of the mechanical flow control single-use safety infusion device of the present invention
  • 9 is a schematic cross-sectional view of a connector for a mechanically controlled flow disposable safety infusion set according to the present invention
  • FIG. 10 is a cross-sectional view showing a close-fitting member of a mechanically controlled flow disposable safety infusion device according to the present invention
  • FIG. 12 is a schematic cross-sectional view of a dripper for a mechanically controlled flow disposable safe infusion set according to the present invention
  • FIG. 13 is a mechanically controlled flow disposable safe infusion set according to the present invention
  • FIG. 14B are schematic cross-sectional views showing the housing of the mechanically controlled flow disposable safety infusion set of the present invention, showing the grooves provided therein, wherein FIG. 14B is a cross-sectional view taken along line AA of FIG. 14A.
  • 15A, 15B are schematic cross-sectional views showing the housing of the mechanically controlled flow disposable safety infusion device, showing another recess disposed therein, wherein FIG. 15B is a cross-sectional view taken along line AA of FIG. 15A;
  • Figure 15C is an enlarged view of a portion B in Figure 15A;
  • FIG. 16A and 16B are schematic cross-sectional views showing another housing of the mechanically controlled flow disposable safety infusion device, showing the projections disposed therein, wherein FIG. 16B is a cross-sectional view taken along line A-A of FIG. 16A;
  • FIGS. 18A and 18B are views of the present invention.
  • FIG. 19A and 19B are schematic views showing the structure of still another floating body of the mechanically controlled flow disposable safety infusion device, showing a groove provided on the outer side thereof, wherein FIG. 19B is a cross-sectional view taken along line A-A in FIG. 19A;
  • FIGS. 20A and 20B are schematic cross-sectional views showing still another floating body of the mechanically controlled flow disposable safety infusion device, showing a groove provided on the outer side thereof, wherein Fig. 20B is a cross-sectional view taken along line A-A in Fig. 20A;
  • Figure 21 is a schematic view showing the integral member, the drip bucket and the housing integrally formed by the present invention.
  • 22 is a schematic structural view of Embodiment 7 of a mechanically controlled flow disposable safety infusion set according to the present invention
  • 22A is a schematic structural diagram of an alarm device according to Embodiment 7 of the present invention
  • Figure 23 is a schematic view showing the structure of Embodiment 8 of the mechanical flow control single-use safety infusion set of the present invention.
  • Figure 24 is a schematic illustration of a further embodiment of a mechanically controlled flow disposable safety infusion set of the present invention. detailed description
  • the present invention relates to a mechanical flow control single-use safety infusion device, which comprises a bottle insertion needle 1, a drip bucket 2, a hose 3, a liquid medicine filter 4 and an intravenous infusion needle 5 which are arranged in sequence.
  • a flow regulator 6 for controlling the flow rate is placed in the jacket of the hose 3, wherein at least one safety mechanism 7 is provided in the drip chamber 2 and/or between the drip bucket 2 and the hose 3, in which the infusion bottle and/or the exchanger are exchanged.
  • the safety mechanism 7 prevents air from entering the hose 3 and into the patient.
  • the safety mechanism 7 includes a housing 71 and a floating body 72 in the housing 71, and the floating body 72 ascends and descends as the liquid medicine in the housing 71 increases or decreases.
  • the casing 71 and the drip bucket 2 are integrally formed, that is, the casing 71 of the safety mechanism is simultaneously the casing of the drip bucket 2.
  • the housing 71 includes at least one chemical liquid inlet portion 712 and at least one chemical liquid outlet portion 713.
  • the chemical liquid outlet portion 713 is provided with a sealing member 711.
  • the sealing member 711 is provided with a through hole 7111 therebetween.
  • the sealing member 711 wherein the middle of the sealing member 711 is thinner than the surrounding portion, which may be a smooth transition therebetween, or may be a step transition in the present embodiment, and has a plane in the middle, the sealing member is made of a soft and elastic material.
  • the shield should meet the hygiene requirements.
  • the diameter of the floating body 72 above the sealing member 711 should be smaller than the diameter of the housing 71 to ensure that the floating body 72 is freely rotatable within the housing, and the sealing member 711 can be fixed to the chemical discharge portion 713 by gluing or integral molding.
  • the mechanically controlled flow disposable safety infusion device of the present invention comprises a sealing member 711 and a floating body 72 directly disposed at the bottom of the housing 71 to form a liquid level controlled safety mechanism 7, and the safety mechanism controlled by the liquid level can effectively prevent At the end of the infusion or bottle infusion, air enters the patient to avoid danger.
  • the infusion bottle rubber stopper or the infusion bag causes the floating body 72 in the safety mechanism 7 to float in the housing 71.
  • the liquid medicine in the housing 71 enters the hose through the through hole 7111 of the sealing member 711 and enters the patient.
  • the floating body 72 decreases as the liquid medicine in the casing decreases.
  • the floating body 72 falls on the plane of the sealing member 711, and the gravity of the floating body and the negative pressure in the infusion tube are utilized.
  • the through hole of the seal 711 is closed to block the air in the dripper and cannot enter the hose 3, thereby ensuring the safety of the infusion.
  • the shape of the floating body is not limited to the circular shape shown in FIG. 1A, and may be other suitable shapes, such as shown in FIGS. 1B and 1C, as long as the floating body falls on the plane of the sealing member.
  • the through hole of the seal can be closed to ensure that air cannot enter the hose.
  • An infusion catheter 12 shown in Figure 24 can also be placed between the insertion needle and the dripper.
  • the mechanical flow control single-use safety infusion device of the invention can effectively realize the purpose of safe infusion, and can effectively prevent air bubbles from entering the patient when the patient and the nursing staff pay close attention to the end of the infusion.
  • the veins while greatly reducing the stress of the medical staff.
  • the structure of this embodiment is basically the same as that of the above embodiment, and the only difference is that the housing of the safety mechanism and the drip bucket in this embodiment are separated, and the structure is the same, and will not be described in detail.
  • the chemical liquid inlet portion 712 of the housing 71 of the safety mechanism can be used to seal the connection hose 8
  • the chemical liquid outlet portion 713 can be used to seal the connection hose 3, that is, at the upper end through the hose 8 and The dripper 2 is in communication and the lower end is in communication with the hose 3. Therefore, the infusion set of the present embodiment can also achieve the purpose of safe infusion.
  • the liquid chemical inlet portion 712 of the above casing 71 can also be directly sealed with the drip bucket 2, as shown in Fig. 3, without the need of the hose 8, thereby reducing the cost and also achieving the purpose of safe infusion.
  • a sealing film 721 is disposed under the floating body 72.
  • the diaphragm is made of latex or a soft and elastic material, and the thinner the better, and the material should meet the hygienic requirements.
  • the sealing membrane 721 can be fixed to the floating body 72 by means of an embedded manner; the outer diameter of the floating body 72 should be smaller than the housing 71 The inner diameter of 005 000984 allows it to rotate freely within the housing.
  • a connecting member 714 is disposed at the lower end of the housing 71.
  • the connecting member 714 has a through hole for the flow of the liquid.
  • the connecting member 714 protrudes from the liquid discharging portion 713 of the housing 71.
  • the connector 714 is fixed to the bottom of the housing 71 by gluing or integral molding.
  • the mechanically controlled flow disposable safety infusion device of the present invention comprises a raised connecting member 714 directly disposed at the bottom of the housing 71, a floating body 72 and an elastic sealing diaphragm 721 embedded in the floating body to constitute a liquid level control safety mechanism. 7.
  • the safety mechanism controlled by this liquid level can effectively prevent air from entering the patient at the end of infusion or bottle infusion, thus avoiding danger.
  • the needle bottle 1 In use, first insert the needle bottle 1 into the infusion bottle or the infusion bag. After the air in the case is squeezed out, when the liquid in the infusion bottle drops, the specific gravity of the liquid in the dripper, the floating body 72 and The sealing membrane 721 will automatically float upward to make the liquid medicine flow downward, and when the liquid medicine is not dripped, the floating body 72 and the diaphragm 721 will decrease as the liquid level of the chemical liquid drops, until the floating body 72 is embedded.
  • the diaphragm 721 falls on the protruding connecting member 714, and the through hole of the protruding connecting member is closed by the gravity of the floating body 72 and the negative pressure in the duct and the diaphragm 721 embedded in the floating body, blocking the air in the shell. In the body, it is impossible to enter the hose 3, thus ensuring the safety of the infusion.
  • housing 71 of the safety mechanism and the drip bucket 2 in this embodiment may be integrally formed, as shown in Fig. 2A, or may be separately arranged, as shown in Fig. 2B and Fig. 3.
  • the structure of the embodiment is basically the same as that of the above embodiment, and the difference is only that the sealing mechanism of the safety mechanism in the embodiment is different from the floating body, and the structural similarities are not described in detail.
  • a sealing member is embedded in the lower end of the floating body 72, for example, a tapered soft cone head 722 made of latex or elastic soft material, and the material should be hygienic. Claim.
  • the outer diameter of the floating body 72 should be smaller than the inner diameter of the housing 71 and can be freely rotated within the cavity of the housing 71.
  • the soft cone The head 722 can be directly inserted into the chemical discharge portion 713 of the housing 71, thereby preventing air from entering the hose 3.
  • the bottom portion of the housing 71 may be chamfered at the contact portion M with the taper head 722; and in order to insert the cone head 722 more tightly into the housing
  • the chemical liquid outlet portion 713 can improve the smoothness of the contact between the bottom portion of the casing 71 and the taper head, thereby ensuring that air does not enter the hose 3.
  • the housing 71 of the safety mechanism in FIG. 2C and the drip bucket 2 are integrally formed; and the housing 71 and the drip bucket 2 may also be provided separately, as shown in FIGS. 3 and 12 and 13.
  • the safety mechanism further includes a connecting member 714'.
  • One end of the connecting member 714' is sealingly connected to the liquid medicine outlet portion 713 of the housing 71, and protrudes from the liquid medicine outlet.
  • the other end of the connecting member 714 is radially formed with a stopper 7141, and the two ends of the connecting member 714 are connected to the connecting member 714.
  • the taper is gradually smaller in diameter to facilitate connection of the housing 71 and the hose 3, and the connecting member 714 has a through hole for supplying the chemical liquid from the housing 71 to the hose 3 in the axial direction.
  • a concave portion 725 is formed between the floating body 72 and the sealing film 721.
  • the concave portion 725 and the sealing film 721 are integrally formed to form a sealing member 10, the sealing film 721 and the connecting member. 714, relative.
  • the floating body 72 will fall as the liquid level of the chemical liquid drops until its sealing film 721 falls on the connecting member 714, and the sealing film piece 721 is thin and elastic, and has a concave shape above the sealing film 721.
  • the shape portion 725 provides a deformation space of the sealing film 721, so that when the sealing film 721 falls on the connecting member 714, the elastic sealing film 721 can be slightly deformed according to the connecting member 714, thereby making the floating body 72
  • the combination with the connector 714 is tighter to better ensure that air does not enter the hose 3.
  • the shape of the floating body is not limited to that shown in FIG. 4, and may be other suitable shapes, for example, as shown in FIG. 8, as long as the floating body is closed on the connecting member, the liquid medicine outlet portion can be closed. , to ensure that the air can not enter the hose.
  • the structure of the embodiment is basically the same as that of the above embodiment, and the difference is only that the floating body of the safety mechanism in the embodiment is embedded in the housing and cannot be rotated relative to the housing, and the structure is the same and will not be described in detail.
  • FIG. 5-6, FIG. 14A-15B and FIG. 17A-18B at least two grooves 715 are disposed on the inner side of the housing 71 in the axial direction, and the outer side of the floating body 72 is disposed corresponding to the groove 715.
  • the bump 723 is inserted into the housing 71 by the cooperation of the protrusion 723 and the groove 715, so that the floating body 72 can close the housing 71 more accurately and instantly. Liquid medicine Oral, further improve the safety of infusion.
  • two grooves 715 are symmetrically disposed inside the casing 71, as shown in FIGS. 14A-14B, but are not limited thereto, and may be symmetrically disposed three, four or more.
  • the groove ; of course, the number of the protrusions 723 on the outer side of the floating body 72 is the same as that of the groove 715, and the positions correspond to each other, as shown in Figs. 17A-17B.
  • the recess 715 may be embedded in the housing 71 as shown in FIG. 14B, or may protrude from the housing 71 as shown in FIG. 15B, but is not limited thereto, as long as the bump 723 of the floating body is embedded. After the recess 715 of the housing, the floating body can be easily and smoothly displaced up and down in the housing and can not be rotated relative to the housing.
  • the drip chamber 2 and the housing 71 are separately disposed, that is, the drip chamber 2 - end seal is embedded in the chemical liquid inlet portion 712 of the housing 71, and the inner diameter d of the lower end of the drip chamber 2 can be made smaller than the floating body 72.
  • the outer diameter D ensures that the floating body 72 only stays within the housing 71 and does not enter the dripper 2, thereby ensuring that the floating body 72 is displaced along the recess 715 in the housing.
  • the above-mentioned housing 71 and the floating body 72 are circumferentially restricted by the cooperation of the groove 715 and the protrusion 723, but it is not limited thereto, and other suitable manners may be adopted between the housing and the floating body.
  • the circumferential limit is performed.
  • the protrusion 716 is axially disposed inside the housing 71
  • the groove 724 is correspondingly disposed outside the floating body 72, that is, Between the housing 71 and the floating body 72, the circumferential limit is achieved by the cooperation of the protrusion 716 and the groove 724.
  • two protrusions are symmetrically arranged inside the housing 71, but it is not limited.
  • a limiting member 9 capable of passing the liquid medicine can be embedded in the upper end of the housing 71, as shown in FIG. 5-8 and FIG.
  • the lifting body 72 has a lifting range within the housing 71.
  • the dripper, the limiting member and the housing can be integrally formed, as shown in FIG. 21, when the drip bucket is injection molded, the intermediate protruding portion constitutes the limiting member 9', and the floating body is received in the limiting member 9, The following cavity.
  • the floating body can be slightly larger than the protruding portion of the drip bucket. Because the drip bucket is elastic, it can be easily loaded by external force during assembly. When used, the limiting member 9 can catch the floating body so that it does not float up to the drop. The liquid level on the top of the bucket.
  • an alarm device may be disposed outside the housing 71.
  • a photosensitive clip 717 is sandwiched between the housing 71 and the middle portion of the floating body corresponding to the floating state. 717 can be set for a semi-circular split, the semi-circular symmetrical position of each fixed a spotlight 7171 and a photosensitive tube 7172, the spotlight 7171 and the photosensitive tube 7172 are connected to the alarm box 7173, the alarm box can be connected to the power supply, and the patient is connected
  • the call switch of the bed head at this time, the distance between the limiting member 9 and the sealing member 711 is about 1.5 times or more of the height of the floating body, and preferably 1.5 - 2 times, when the floating body 72 is in a floating state,
  • the floating body 72 can block the light of the spotlight 7171 so that the alarm box 7173 does not work, and when the liquid drop in the casing is completed and the floating body just falls on the sealing member, the light of the spotlight just passes through the
  • the photosensitive clip 717 clamps the lower end of the housing 71 to turn on the power.
  • the floating body floats, the floating body 72 blocks the light of the spotlight 7171, and the alarm box 7173 does not work;
  • the floating body 72 is lowered, a negative pressure is generated due to the self-weight of the liquid medicine in the hose, so that the floating body 72 is tightly pressed against the sealing member 711 of the liquid medicine outlet portion 713 of the casing, so that air does not enter the hose 3, and the medicine is retained in the hose 3.
  • the liquid that is, the pressure on the venous tube is retained, and the blood of the venous tube does not flow backward.
  • the medicine droplets in the housing are immediately alarmed, and the liquid in the hose below the housing retains the liquid medicine, and the patient does not circulate blood for a long time, which can reduce the care of the caregiver.
  • the structure of the embodiment is basically the same as that of the above embodiment, and the structure is the same, and the difference is only that, as shown in FIG. 23, the embodiment further includes a medicated component that can be disposed on the hose. 11 , and the liquid medicine outlet portion 713 of the casing 71 of the safety mechanism is disposed in parallel with two sealing members 71 ⁇ and 711 which are provided with a through hole 7111 in the middle, wherein the middle of the sealing members 711, 711 is thinner than the surrounding portion. It can be a smooth transition, or a step transition in this embodiment, with a flat surface in the middle.
  • the seal is made of a soft and elastic material, and the material should meet the hygienic requirements.
  • the floating body 72 is located between the two seals 711', 711 and is automatically rotatable within the housing 71.
  • the floating body is preferably symmetrically disposed above and below.
  • the bottle insertion needle 1 is first inserted into the infusion bottle rubber stopper or the infusion bag, so that the floating body 72 in the safety mechanism 7 is in a floating state between the upper and lower sealing members 711, 711 in the housing 71, and is closed. 84.
  • Sealing member 711 when the liquid medicine in the infusion bottle drops, the floating body 72 is flushed by the pressure of the lower dropping liquid to lower the liquid medicine, and the floating body 72 decreases as the liquid medicine in the housing decreases.
  • the floating body 72 falls on the plane of the lower seal 711, and the through hole of the lower seal 711 is closed by the gravity of the floating body and the negative pressure in the infusion tube, and the air is blocked in the drip bucket. Inside, it is impossible to enter the hose 3, thus ensuring the safety of the infusion.
  • the drug solution is added from the medicated member 11, and when the amount added is greater than the normal infusion amount, the pressure of the drug solution in the drip chamber is lower than the pressure in the cavity below the movable floating body 72.
  • the patient needs to close the infusion device urgently during the infusion process
  • the invention needs to close the infusion device during the infusion process, and the medical staff can directly inject, thereby greatly injecting Reduced the strained work of medical staff.

Abstract

L'invention concerne un dispositif de perfusion sûr jetable comprenant une aiguille introduite dans un flacon, un tube de Morfei, un tuyau de fluide, un filtre de fluide et une aiguille de perfusion agencés en séquence. Un régulateur d'écoulement est monté sur le tuyau afin de réguler ledit écoulement. Un mécanisme de sécurité est installé dans le tube de Morfei ou entre le tube de Morfei et le tuyau. Lorsqu'il n'y a pas de gouttes de fluide dans le tube de Morfei, le mécanisme de sécurité empêche l'air d'entrer dans le corps d'un patient. De ce fait, le dispositif de perfusion peut étanchéifier automatiquement le tuyau de fluide au moyen d'un flotteur placé dans le mécanisme de sécurité afin d'empêcher les bulles d'air d'entrer dans la veine du patient.
PCT/CN2005/000984 2004-09-09 2005-07-05 Dispositif de perfusion sur jetable WO2006026904A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005800301949A CN100534543C (zh) 2004-09-09 2005-07-05 一次性安全输液器

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200420082693.5 2004-09-09
CN 200420082692 CN2732258Y (zh) 2004-09-09 2004-09-09 一次性使用力学控液输液器
CN200420082692.0 2004-09-09
CN 200420082693 CN2732263Y (zh) 2004-09-09 2004-09-09 一次性使用负压止流输液器

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CN100443129C (zh) * 2006-04-21 2008-12-17 陈庆强 自动平衡浮子式安全输液管
CN102935257A (zh) * 2012-11-30 2013-02-20 南京金同润医疗科技有限公司 一种用于静脉输液自动保护的安全配件
CN113368337A (zh) * 2021-07-14 2021-09-10 中国人民解放军总医院海南医院 输化疗药的装置
WO2021214609A1 (fr) * 2020-04-22 2021-10-28 Kci Licensing, Inc. Pansement en pont pour l'irrigation de multiples sites tissulaires

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US5527295A (en) * 1995-02-22 1996-06-18 Wing; Michael L. Gravitational, magnetic, floating ball valve
JP2001224683A (ja) * 2000-02-19 2001-08-21 Naoyuki Asakawa 医療用輸液ライン用流出遅延ないし停止機構付き点滴筒
CN2618613Y (zh) * 2003-06-02 2004-06-02 吕健 一种防止空气误入式输液器

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CN2039970U (zh) * 1988-11-26 1989-06-28 方正国 点滴注射器
CN2068836U (zh) * 1990-05-30 1991-01-09 沈阳市北华医用塑料器材厂 自动封闭式一次性输液器
GB2266842A (en) * 1992-05-06 1993-11-17 Hung Yung Feng Drip set with float pad cut-off
US5527295A (en) * 1995-02-22 1996-06-18 Wing; Michael L. Gravitational, magnetic, floating ball valve
JP2001224683A (ja) * 2000-02-19 2001-08-21 Naoyuki Asakawa 医療用輸液ライン用流出遅延ないし停止機構付き点滴筒
CN2618613Y (zh) * 2003-06-02 2004-06-02 吕健 一种防止空气误入式输液器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100443129C (zh) * 2006-04-21 2008-12-17 陈庆强 自动平衡浮子式安全输液管
CN102935257A (zh) * 2012-11-30 2013-02-20 南京金同润医疗科技有限公司 一种用于静脉输液自动保护的安全配件
WO2021214609A1 (fr) * 2020-04-22 2021-10-28 Kci Licensing, Inc. Pansement en pont pour l'irrigation de multiples sites tissulaires
CN113368337A (zh) * 2021-07-14 2021-09-10 中国人民解放军总医院海南医院 输化疗药的装置
CN113368337B (zh) * 2021-07-14 2022-08-02 中国人民解放军总医院海南医院 输化疗药的装置

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