WO2023280281A1 - Capsule jetable de rinçage d'aiguille à demeure - Google Patents

Capsule jetable de rinçage d'aiguille à demeure Download PDF

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Publication number
WO2023280281A1
WO2023280281A1 PCT/CN2022/104442 CN2022104442W WO2023280281A1 WO 2023280281 A1 WO2023280281 A1 WO 2023280281A1 CN 2022104442 W CN2022104442 W CN 2022104442W WO 2023280281 A1 WO2023280281 A1 WO 2023280281A1
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WO
WIPO (PCT)
Prior art keywords
storage bag
liquid storage
indwelling needle
liquid
buckle
Prior art date
Application number
PCT/CN2022/104442
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English (en)
Chinese (zh)
Inventor
文环
Original Assignee
厦门大学附属第一医院
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 厦门大学附属第一医院 filed Critical 厦门大学附属第一医院
Publication of WO2023280281A1 publication Critical patent/WO2023280281A1/fr

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    • 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
    • A61M25/00—Catheters; Hollow probes
    • 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
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Definitions

  • the invention relates to a disposable indwelling needle flushing capsule.
  • Indwelling needles are also called venous trocars.
  • the use of indwelling needles can reduce the pain caused by repeated venipuncture and the fear of injections, protect blood vessels, facilitate clinical medication, and reduce the workload of nurses. It is widely used in clinical practice. .
  • the nurse will inject normal saline or sodium heparin solution into the indwelling needle in pulses, and use normal saline or sodium heparin solution to flush the blood back into the vein to prevent blood return and tube blockage.
  • Physiological saline and heparin sodium solution are generally injected through traditional needle tubes.
  • the invention patent of the authorized announcement number CN204815148U also discloses a kind of injection tube used with an indwelling needle.
  • the injection tube includes a hollow tube, a connecting tube, a push rod, and An introduction tube connected to the hollow tube is arranged in the connecting tube, and the physiological saline in the hollow tube is pushed out by a push rod during use, and the physiological saline enters the indwelling needle through the introduction tube.
  • the structure is relatively complicated, and the cost is also high. It requires a nurse to dispense the solution, which increases the nurse's operation and increases the treatment cost of the patient.
  • the invention provides a disposable indwelling needle flushing capsule, which overcomes the shortcomings of the background technology.
  • the technical solution adopted by the present invention to solve its technical problems is:
  • Disposable indwelling needle flushing capsule including a liquid storage bag
  • the upper end of the liquid storage bag is provided with a conical liquid outlet that can be connected with the indwelling needle, the liquid storage bag is in an inflated state under normal conditions, and the liquid storage bag
  • the liquid bag is retractable, and also includes an end cap for covering the liquid outlet, the end cap can be removed during use, the liquid storage bag is connected with a buckle structure, and the liquid storage bag is compressed to squeeze out the liquid storage After the liquid in the bladder is released, the fluid storage bladder is kept in a contracted state under the restriction of the buckle structure.
  • the liquid storage bag is a bellows structure
  • the liquid outlet is arranged on the upper end surface of the liquid storage bag, pushing the lower end surface of the liquid storage bag upwards can compress the storage bag. fluid sac.
  • the inner surface of the lower end surface of the liquid storage bag is provided with an upwardly protruding block in the middle
  • the cross section of the block is in the shape of a dovetail groove
  • the edge of the top of the block forms a buckle edge
  • the inner wall of the liquid outlet nozzle is provided with a rib corresponding to the buckle, and after the liquid storage bag is squeezed, the buckle and the rib are snapped together, and the buckle and the rib form the snap buckle structure.
  • the liquid storage bag is integrally blow-molded; the liquid storage bag is a transparent structure; and an identification frame is provided on the liquid storage bag.
  • the upper end surface of the liquid storage bag is connected with an upper casing protruding laterally outwards
  • the lower end surface of the liquid storage bag is connected with a lower casing protruding laterally outwards
  • the upper casing and the lower casing are provided with a locking block and a locking slot that can be interlocked with each other, and after the liquid storage bag is squeezed, the locking block is engaged with the locking slot, and the locking block is connected to the locking slot.
  • the slot constitutes the buckle structure.
  • the upper casing and the lower casing are in the shape of caps.
  • the upper housing is provided with a card slot
  • the lower housing is provided with a card block
  • the card slots are two and symmetrical
  • the locking blocks are two and symmetrical.
  • clamping block engages with the clamping slots at different positions according to the degree of squeezing the fluid storage bag.
  • the buckle structure is a rubber band connected to the upper end surface of the liquid storage bag, and after the liquid storage bag is squeezed, the rubber band covers the lower end surface of the liquid storage bag.
  • the hardness of the middle part of the side wall of the liquid storage bag is greater than the hardness of the upper and lower parts of the side wall, and the liquid outlet is set in the middle part of the side wall of the liquid storage bag.
  • the upper and lower parts of the side wall of the liquid storage bag are bellows structures
  • the upper and lower parts of the side wall of the liquid storage bag are respectively provided with hooks
  • the middle part of the side wall of the liquid storage bag The two hooks at the upper and lower ends are respectively provided with buckle edges, and after the liquid storage bag is squeezed, the hooks are fastened to the buckle edges, and the hooks and the buckle edges form the buckle structure.
  • the shrinkable and inflatable liquid storage bag is used to store physiological saline or heparin sodium solution.
  • the liquid outlet is directly connected to the indwelling needle, and the liquid can be injected into the indwelling tube by squeezing the liquid storage bag, and the indwelling needle can be flushed.
  • the buckle structure restricts the liquid storage bag, which can prevent the liquid storage bag from expanding and retracting, and ensure sufficient pressure in the indwelling needle, making it safer and more reliable to use.
  • the liquid storage bag has a simple structure and low cost, which can save treatment costs. The volume of the liquid storage bag becomes smaller after use, which saves the space for medical waste disposal.
  • Fig. 1 depicts a three-dimensional schematic view of a disposable indwelling needle flushing capsule (inflated state of the reservoir).
  • Fig. 2 is a schematic perspective view of the liquid storage bag of the disposable indwelling needle flushing capsule shrinking and extruding liquid.
  • Fig. 3 is a schematic cross-sectional view showing that the liquid storage bag of the disposable indwelling needle flushing capsule shrinks and extrudes liquid.
  • Fig. 4 depicts a schematic diagram of the second embodiment of the disposable indwelling needle flushing capsule (inflated state of the reservoir).
  • Fig. 5 is a schematic diagram of the third embodiment of the disposable indwelling needle flushing capsule, in which the liquid reservoir shrinks and squeezes out the liquid.
  • Fig. 6 is a schematic perspective view of the fourth embodiment of the disposable indwelling needle flushing capsule, in which the liquid storage bag shrinks and extrudes liquid.
  • Fig. 7 is a schematic side view of the fourth embodiment of the disposable indwelling needle flushing capsule, in which the liquid storage bag shrinks and squeezes out the liquid.
  • Fig. 8 is a schematic perspective view of the fifth embodiment of the disposable indwelling needle flushing capsule, in which the liquid storage bag shrinks and squeezes out the liquid.
  • Fig. 9 is a schematic side view of the fifth embodiment of the disposable indwelling needle flushing capsule, in which the liquid storage bag contracts and squeezes out the liquid.
  • the disposable indwelling needle flushing capsule includes a liquid storage bag 10, and the upper end of the liquid storage bag is provided with a conical liquid outlet 12 that can be connected with the indwelling needle (the liquid outlet 12 It can also be docked with joints of other blood transfusion, infusion, and measuring devices), the liquid storage bag 10 is in an inflated state under normal conditions, and the liquid storage bag 10 can shrink to squeeze out the stored liquid.
  • the liquid storage bag 10 is a plastic part, such as a bag used to store ink on a pen, or a structure similar to an air bag can also be used.
  • the disposable indwelling needle flushing capsule also includes an end cap 20 for covering the liquid outlet 12, and the end cap 20 can be removed during use, and the end cap seals the liquid outlet 12 under normal conditions.
  • the liquid storage bag 10 is connected with a buckle structure, and after the liquid storage bag 10 is compressed to squeeze out the liquid in the liquid storage bag, the liquid storage bag is kept in a contracted state under the restriction of the buckle structure.
  • the liquid storage bag 10 is filled with physiological saline or sodium heparin solution in advance, and when the patient infusion is completed, the nurse removes the end cap 20, inserts the liquid outlet nozzle 12 and the indwelling needle together, and then squeezes the liquid storage bag 10, The internal liquid is injected into the indwelling needle to enter the patient's body, and then because the buckle structure restricts the liquid storage bag 10, the liquid storage bag cannot rebound, so a certain pressure is continuously maintained in the indwelling needle, which can effectively prevent the patient from Blood flowed out.
  • the liquid storage bag 10 is a bellows structure
  • the liquid outlet nozzle 12 is arranged on the upper end surface of the liquid storage bag, pushing the lower end surface of the liquid storage bag upwards can compress the liquid storage bag .
  • the bellows reservoir is adopted, which has a simple structure and is easy to fill with liquid. You only need to squeeze out the gas when the bottle is empty, and you can inhale the liquid when it rebounds naturally.
  • the upper end of the liquid storage bag 10 is sleeved with an upper casing 14 having a top surface and side walls
  • the lower end of the liquid storage bag is sleeved with a lower casing 16 with a bottom surface and side walls.
  • the inner diameter is larger than the outer diameter of the lower housing, and the side walls of the upper housing and the lower housing are provided with a locking block 162 and a locking groove 142 that can be interlocked with each other, and after the liquid storage bag 10 is squeezed, the locking block 162
  • the clamping block and the clamping slot constitute the buckling structure.
  • the upper casing 14 and the lower casing 16 cannot be separated by using the clamping block 162 and the locking groove 142, so that the positions of the upper end surface and the lower end surface of the liquid storage bag 10 are relatively fixed, so that the liquid storage bag 10 Can't snap back.
  • the structure of the buckle and the slot is not limited to the hook shape.
  • the buckle can also be a loop type, and the buckle can also be arranged on the elastic arm, as long as the two can be matched and fastened together That's it.
  • FIG. 4 as a deformed structure of the disposable indwelling needle flushing capsule of the present invention, compared with the structure in FIG. 1 , the difference lies in the buckle structure, specifically: the inner surface of the lower end surface of the liquid storage bag 10 The surface is provided with an upwardly protruding block 18 in the middle.
  • the cross section of the block 18 is in the shape of a dovetail groove.
  • the edge of the top of the block 18 forms a buckle edge 181, and the inner wall of the outlet nozzle 12 corresponds to the buckle.
  • Ribs 121 are arranged on the side, extruding the liquid storage bag
  • the liquid storage bag 10 is integrally blow-molded.
  • the liquid storage bag 10 has a transparent structure, and the color, transparency, and properties of the liquid contained therein can be observed.
  • the liquid storage bag 10 is provided with an identification frame, which can identify the solution name, expiration date, capacity, scale, etc.
  • the buckle structure is connected to the The rubber band ring 19 on the upper end surface of the liquid storage bag 10, after squeezing the liquid storage bag 10, the rubber band cover 19 covers the lower end surface of the liquid storage bag 10, which can also prevent the rebound of the liquid storage bag 10.
  • the structure of the fluid storage bag can also be modified so that the nurse can operate it more easily, specifically, as shown in Figure 6 and Figure 7:
  • the hardness of the middle part of the side wall of the liquid storage bag 10 is greater than that of the upper and lower parts of the side wall, and the liquid outlet 12 is set in the middle part of the side wall of the liquid storage bag.
  • the liquid storage bag 10 is small in size, so that the middle part of the side wall of the liquid storage bag can provide support when the nurse is operating, so that the liquid storage bag can be squeezed more easily, which meets the habit of manually pressing a small container, that is, the index finger and middle finger can be moved from Buckle the upper end surface of the liquid storage bag 10 from above, and the thumb can buckle the lower end surface of the liquid storage bag 10 from below, so that the medicine in the liquid storage bag can be squeezed out very conveniently, and at the same time, it is also easy to squeeze out the medicine in the liquid storage bag because the liquid outlet 12 is set on the side. Make observations.
  • the upper and lower parts of the side wall of the liquid storage bag are bellows structures, the upper and lower parts of the side wall of the liquid storage bag are respectively provided with hooks 30, and the upper and lower ends of the middle part of the side wall of the liquid storage bag correspond to two
  • Each of the hooks is respectively provided with buckle edges 40 , and after the liquid storage bag is squeezed, the hook 30 is buckled with the buckle edges 40 , and the hooks 30 and the buckle edges 40 form the buckle structure.
  • the hook 30 can be integrally formed with the liquid storage bag 10, and of course the hook can also be arranged on a transition piece, and the transition piece is connected to the liquid storage bag;
  • the liquid storage bag 10 is integrally formed, and of course, the button edge can also be arranged on a transition piece, and the transition piece is then connected to the liquid storage bag.
  • the structure shown in Fig. 8 and Fig. 9 is different from the first embodiment in that: there are multiple card slots 142 arranged along the axial direction of the side wall of the upper housing 14, and the card slots 142 are
  • the block 162 is engaged with the draw-in slots at different positions according to the degree of squeezing the liquid storage bag 10 (the upper shell 14 can be extended according to the position of the draw-in slot 142), so that flexible operation can be performed for different dosage requirements , that is to say, if only a small amount of dose needs to be extruded, the clamping block 162 is buckled with the frontmost clamping slot 142, and if more doses are required, push until the clamping block is buckled with the clamping slot at the middle position, most like When the dose required is the largest, push until the block is engaged with the slot at the last position.
  • This progressive control method is more functional.
  • the invention discloses a disposable indwelling needle flushing capsule, which includes a liquid storage bag.
  • the liquid storage bag is provided with a conical liquid outlet that can be docked with the indwelling needle.
  • the liquid storage bag is in an inflated state under normal conditions.
  • the liquid storage bag can be contracted, and also includes an end cap for covering the liquid outlet nozzle. The end cap can be removed during use, and the liquid storage bag is connected with a buckle structure to compress the liquid storage bag. After the liquid in the liquid storage bag is squeezed out, the liquid storage bag is kept in a contracted state under the limitation of the buckle structure.
  • the shrinkable and inflatable liquid storage bag is used to store physiological saline or heparin sodium solution, etc.
  • the liquid outlet is directly connected to the indwelling needle, and the liquid can be injected into the indwelling tube by squeezing the liquid storage bag, and the indwelling needle can be flushed.
  • the buckle structure restricts the liquid storage bag, which can prevent the expansion and contraction of the liquid storage bag, ensure sufficient pressure in the indwelling needle, make it safer and more reliable to use, and the liquid storage bag has a simple structure, low cost, and saves treatment costs and medical waste Handle space with industrial applicability.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Capsule jetable de rinçage d'aiguille à demeure, comprenant une poche de stockage de liquide (10). La poche de stockage de liquide (10) est pourvue d'une buse de sortie de liquide conique (12) qui peut être reliée à une aiguille à demeure, etc. ; la poche de stockage de liquide (10) est normalement dans un état déployé ; et la poche de stockage de liquide (10) peut être contractée. La capsule jetable de rinçage d'aiguille à demeure comprend également un capuchon d'extrémité (20) servant à recouvrir la buse de sortie de liquide (12). Le capuchon d'extrémité (20) peut être retiré pendant l'utilisation ; la poche de stockage de liquide (10) est reliée à une structure d'encliquetage ; et après le pressage de la poche de stockage de liquide (10) pour expulser le liquide de la poche de stockage de liquide (10), la poche de stockage de liquide (10) est maintenue dans un état contracté sous la restriction de la structure d'encliquetage. La poche de stockage de liquide extensible (10) est utilisée pour stocker du sérum physiologique, une solution d'héparine sodique, etc., et la buse de sortie de liquide (12) est directement reliée à l'aiguille à demeure, de telle sorte que le liquide peut être injecté dans un trocart à demeure par compression de la poche de stockage de liquide (10) pour rincer l'aiguille à demeure ; en outre, la structure d'encliquetage limite la poche de stockage de liquide (10) pour empêcher la dilatation et la contraction de la poche de stockage de liquide (10), assurant une pression suffisante dans l'aiguille à demeure et augmentant la sécurité et la fiabilité d'utilisation ; en outre, la poche de stockage de liquide (10) a une structure simple et un faible coût de fabrication, ce qui permet d'économiser les coûts de traitement et l'espace d'élimination de déchets médicaux.
PCT/CN2022/104442 2021-07-07 2022-07-07 Capsule jetable de rinçage d'aiguille à demeure WO2023280281A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121541086.0 2021-07-07
CN202121541086.0U CN216061537U (zh) 2021-07-07 2021-07-07 一次性留置针冲管胶囊

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WO2023280281A1 true WO2023280281A1 (fr) 2023-01-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216061537U (zh) * 2021-07-07 2022-03-18 厦门大学附属第一医院 一次性留置针冲管胶囊

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6712790B1 (en) * 1998-12-31 2004-03-30 Dean Brian Prestidge Parenteral catheter apparatus
US20080208132A1 (en) * 2007-01-17 2008-08-28 Tyco Healthcare Group Lp Indwelling Needle
CN205031651U (zh) * 2015-08-21 2016-02-17 淄博侨森医疗用品有限公司 正压持续给液装置以及静脉留置针、中心静脉导管
CN206120860U (zh) * 2016-06-13 2017-04-26 广东百合医疗科技股份有限公司 一种用于静脉留置针的持续冲洗装置
CN209301893U (zh) * 2018-09-13 2019-08-27 威海洁瑞医用制品有限公司 具有多功能胶囊结构的留置针
CN216061537U (zh) * 2021-07-07 2022-03-18 厦门大学附属第一医院 一次性留置针冲管胶囊

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6712790B1 (en) * 1998-12-31 2004-03-30 Dean Brian Prestidge Parenteral catheter apparatus
US20080208132A1 (en) * 2007-01-17 2008-08-28 Tyco Healthcare Group Lp Indwelling Needle
CN205031651U (zh) * 2015-08-21 2016-02-17 淄博侨森医疗用品有限公司 正压持续给液装置以及静脉留置针、中心静脉导管
CN206120860U (zh) * 2016-06-13 2017-04-26 广东百合医疗科技股份有限公司 一种用于静脉留置针的持续冲洗装置
CN209301893U (zh) * 2018-09-13 2019-08-27 威海洁瑞医用制品有限公司 具有多功能胶囊结构的留置针
CN216061537U (zh) * 2021-07-07 2022-03-18 厦门大学附属第一医院 一次性留置针冲管胶囊

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