WO2010003291A1 - Automatic transfusion device - Google Patents

Automatic transfusion device Download PDF

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Publication number
WO2010003291A1
WO2010003291A1 PCT/CN2008/072119 CN2008072119W WO2010003291A1 WO 2010003291 A1 WO2010003291 A1 WO 2010003291A1 CN 2008072119 W CN2008072119 W CN 2008072119W WO 2010003291 A1 WO2010003291 A1 WO 2010003291A1
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WO
WIPO (PCT)
Prior art keywords
moving rod
gear
elastic deformation
disposed
driving
Prior art date
Application number
PCT/CN2008/072119
Other languages
French (fr)
Chinese (zh)
Inventor
林荣华
Original Assignee
Lin Ronghua
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 Lin Ronghua filed Critical Lin Ronghua
Publication of WO2010003291A1 publication Critical patent/WO2010003291A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • 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
    • A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags

Definitions

  • the present invention relates to an automatic infusion device for use in the field of unpowered delivery of liquids such as medical fluids, blood, and lubricating oil.
  • the traditional infusion set uses the principle of differential pressure to suspend the liquid bottle or the liquid bag at a high position, and the pressure difference is used to input the liquid medicine or blood into the human body through the infusion tube.
  • the patient needs to sit on the bed or sit on the chair. If the patient needs to urinate, the nurse or family member needs to move the liquid bottle or the liquid bag and lift it over the top of the patient's head. It is very inconvenient to use and is prone to blood return. Or the phenomenon of bulging, especially in the field of first aid, disaster relief is more inconvenient.
  • Chinese Patent No. CN2892110Y published on Apr. 25, 2007, discloses an infusion device which is designed by the inventor a year ago and includes a box body and an elastic deformation body 2' which is sequentially disposed in the box body.
  • the elastic deformation body 2' is an elastic bracket, which comprises a moving rod 1, a moving rod 2, a moving rod 3, a moving rod 4, and two pairs of ribs
  • the tension spring and the rotating shaft have a rectangular parallelepiped structure, and the moving rod 1, the moving rod 2, the moving rod 3, and the moving rod 4 are sequentially arranged in parallel on the four corners of the rectangular parallelepiped, and the rotating shaft is arranged in parallel with the moving rods.
  • each pair of ribs includes a rib
  • the rib plate 2 the middle portion of the rib plate is hinged to the rotating shaft, and one end of the dam plate is respectively hinged to the longitudinal end of the moving rod and the moving rod, and the middle portion of the rib plate is hinged to the rotating shaft, and the two ends of the rib plate are respectively hinged to the moving rod 2 and
  • the longitudinal ends of the moving rods are four, and the ribs of the same pair of ribs and the hinge parts of the ribs 2 and the moving rods are located on the same side of the rectangular parallelepiped, and the two ends of the tension spring are respectively disposed on the adjacent two moving rods.
  • an automatic infusion device comprising a box body, an elastic deformation body, a pressure receiving plate and a cover body, wherein the cover body cover is formed on the box body to form a closed cavity, the elastic deformation The body is disposed between the box body and the cover body and is elastically deformable along the thickness direction of the box body, and the bearing plate is disposed on the cover body and the elastic body Between the deformable bodies, the elastically deformable body is provided with a tensioning device that drives it to overcome the resilience deformation.
  • the elastic deformation body has a substantially rectangular parallelepiped structure, and includes a moving rod 1, a moving rod 2, a moving rod 3, a moving rod 4, two pairs of rib plates, a tension spring and a rotating shaft, and the moving rod
  • the moving rod 2, the moving rod 3, and the moving rod 4 are sequentially arranged in parallel on the four side edges of the rectangular parallelepiped, and the rotating shaft is arranged in parallel with the moving rods and located at the center of the rectangular parallelepiped, each pair of ribs including the ribs and the ribs Second, the middle part of the rib is hinged to the rotating shaft, and one end of the dam is hinged to the longitudinal end of the moving rod and the moving rod respectively, and the middle part of the rib is hinged to the rotating shaft, and the two ends of the rib are respectively hinged to the moving rod 2 and the moving rod Four longitudinal ends, and two pairs of ribs are respectively located on the front and rear sides of the rectangular parallelepiped, and two ends of the tension spring
  • the tensioning device includes a driving gear, a driven gear and two racks, and one end of the driving gear is provided with a rotating handle for driving the driving gear, and the driven gear is coaxially arranged.
  • the large gear and the pinion are composed of a large gear and a driving gear, and one end of each of the two racks is respectively hinged with two moving rods provided with a tension spring, and the pinion gear and the two racks are meshed and arranged.
  • the tensioning device is provided with a positioning device for fixing the elastically deformable body to a tensioned state.
  • the positioning device comprises a ratchet and a rotating handle, the ratchet is rotatably disposed on the casing, and the free end of the ratchet is disposed on the gear of the driving gear or the large gear, and the rotating handle is It is disposed between the box body and the ratchet for driving the ratchet rotation.
  • the beneficial effects of the present invention are: by adding a tensioning device on the elastic deformation body, the elastic deformation body can be easily opened to the maximum tension state, and thus the pressure bearing plate and the cover can be conveniently arranged.
  • the liquid storage bag is placed between the bodies, and the whole operation process has the advantages of labor saving, safety, and convenience compared with the known infusion device.
  • Figure 1 is a perspective view of an embodiment
  • Figure 2 is an exploded perspective view of the embodiment
  • Figure 3 is a perspective view of an elastic deformation body and a tensioning device thereof;
  • Figure 4 is an exploded perspective view of a known infusion device
  • the present invention is based on an infusion device disclosed in Chinese Patent No. CN2892110Y published on April 25, 2007. It is believed that a careful reading of the technical solution will better understand the technical problems to be solved by the present invention. The technical solution adopted and the beneficial effects obtained thereby.
  • the embodiment discloses an automatic infusion device comprising a case 1 and elasticity
  • the body 5 is elastically deformable along the thickness direction of the casing 1.
  • the pressure receiving plate 3 is disposed between the cover body 5 and the elastic deformation body 2, so that when the elastic deformation body 2 is deformed downwardly, the pressure is pressed.
  • the plate 3 is moved downward to form a cavity between the pressure receiving plate 3 and the cover body 5, and the liquid storage bag can be placed in the cavity, and the elastic deformation body 2 is provided with a piece that drives the deformation thereof to overcome the rebound force.
  • a fastening device 4 and a positioning device 6 for fixing the elastic deformation body 2 in a tension state the cover body 5 - the side edge is hinged to the casing 1 , and the other side of the casing 1 is released by the two buckles 11
  • the cover 5 is snapped to the upper surface thereof.
  • the elastic deformation body 2 has a substantially rectangular parallelepiped structure, and includes a moving rod 21, a moving rod 22, a moving rod 3 23, a moving rod 4 34, two pairs of ribs, and two tension springs (not shown) And the rotating shaft 27, the moving rod 21, the moving rod 22, the moving rod 3 23, and the moving rod 24 are sequentially arranged in parallel on the four side edges of the rectangular parallelepiped, and the rotating shaft 27 is disposed at the center of the rectangular parallelepiped and moves with each other
  • the rods are arranged in parallel, each pair of ribs includes a rib plate 25 and a rib plate 26, and the middle portion of the rib plate 25 is hinged to the rotating shaft 27, and the two ends of the dam plate 25 are respectively hinged to the longitudinal end of the moving rod 21 and the moving rod 3 23
  • the middle portion of the ribs 26 is hinged to the rotating shaft 27, and the two ends of the ribs 26 are respectively hinged to the longitudinal ends of the moving rod 22 and the moving rods 24, and the two pairs of
  • the tensioning device 4 includes a driving gear 41, a driven gear 42 and two racks 43.
  • the box body 1 is provided with a lower fixing plate 12 and an upper fixing plate 13, and the driving gear 41 is rotatably disposed on Between the upper fixing plate 13 and the lower fixing plate 12, one end of the driving gear 41 extends downward and passes through the side wall of the bottom surface of the casing 1.
  • a rotating handle 44 and the driving gear 41 are located at the axial end of the bottom surface of the casing 1. Separably disposed, the rotating handle 44 is configured to drive the driving gear 41 to rotate.
  • the driven gear 42 is also disposed between the upper fixing plate 13 and the lower fixing plate 12.
  • the driven gear 42 includes a coaxially disposed large gear 421 and small.
  • the large gear 421 is meshed with the driving gear 41
  • the two racks 43 are respectively hingedly connected to the moving rod 21 and the moving rod 22, respectively
  • the small gear 422 is meshed with the two racks 43 respectively. Therefore, when the rotating handle 44 drives the driving gear 41 to rotate, the large gear 421 drives the pinion 422 to rotate synchronously, thereby driving the two racks 43 to move back, so that the entire elastic deformation body 2 is deformed against the elastic force of the tension spring, abstractly Is the length of the elastic deformable body 2 is increased, the height is reduced, the whole process is the process of flattened, so that the volume of the reservoir bag between the cover 3 and the bearing plate 5.
  • the tensioning device 4 is provided with a positioning device 6 for fixing the elastic deformation body 2 to the tension state.
  • the positioning device 6 includes a ratchet 61 and a rotating handle 62.
  • One end of the ratchet 61 is rotatably Provided between the upper fixing plate 13 and the lower fixing plate 12, the free ends of the ratchet teeth 61 are disposed on the teeth of the driving gear 41
  • the hinge shaft of the ratchet 61 extends to the outside of the bottom surface of the casing 1, and the rotating handle 62 is rigidly connected with the hinge shaft of the ratchet 61, so that when the rotating handle 44 stretches the entire elastic deformation body 2 to the limit tension state, the rotation
  • the handle 62 has the free end of the ratchet 61 disposed on the teeth of the driving gear 41 to prevent reverse rotation.
  • the liquid storage bag can be easily placed between the bearing plate 3 and the cover 5, and used.
  • the cover body 5 is fastened by the buckle 11 and the handle 62 is rotated to remove the ratchet teeth 61 from the driving gear 41, the entire elastic deformation body 2 is reset upward by the tension spring, and the whole process is abstracted into a long length.
  • the process of reducing the length of the direction and increasing the height the process pushes the bearing plate 3 upward, and pushes the liquid in the liquid storage bag between the bearing plate 3 and the cover 5 to the body of the patient.

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

Abstract

An automatic transfusion device includes a box body (1), an elastic deformation body (2), a pressure plate (3) and a cover body (5), wherein the cover body (5) covers on the box body (1) to form a hermetic cavity, the elastic deformation body (2) is provided between the box body (1) and the cover body (5), and may deform along a thickness direction of the box body (1), the pressure plate (3) is provided between the cover body (5) and the elastic deformation body (2), and the elastic deformation body (2) is provided with a tension device (4) for driving it to overcome the deformation caused by the rebound force.

Description

一种自动输液装置  Automatic infusion device
技术领域 Technical field
本发明涉及一种自动输液装置， 该自动输液装置用于药液、血液、润滑油等 液体的无动力输送领域。  The present invention relates to an automatic infusion device for use in the field of unpowered delivery of liquids such as medical fluids, blood, and lubricating oil.
背景技术 Background technique
传统的输液器采用压差原理，将液瓶或液袋悬挂在高处，利用压差使药液或 血液经输液管输入人体中。 这种输液方式， 患者需在床上卧着或在椅子上坐着， 如患者需要大小便， 需护士或家属帮忙将液瓶或液袋移动并举过患者头顶， 使用 很不方便，而且容易发生回血或鼓包现象，特别是在野外急救、救灾时更不方便。  The traditional infusion set uses the principle of differential pressure to suspend the liquid bottle or the liquid bag at a high position, and the pressure difference is used to input the liquid medicine or blood into the human body through the infusion tube. In this infusion method, the patient needs to sit on the bed or sit on the chair. If the patient needs to urinate, the nurse or family member needs to move the liquid bottle or the liquid bag and lift it over the top of the patient's head. It is very inconvenient to use and is prone to blood return. Or the phenomenon of bulging, especially in the field of first aid, disaster relief is more inconvenient.
参考图 4， 2007年 4月 25日公告的中国专利 CN2892110Y公开一种输液装置， 其为本发明人一年前所设计， 其包括盒体 、 依次设于所述盒体 内的弹性 变形体 2 ' 、 承压板 3 ' 、 柔性储液袋 4' 及盖设于所述盒体 上的盒盖 5 ' ， 沿所述弹性变形体 2 ' 变形的方向所述弹性变形体 2 ' 两侧分别与盒体 的内 侧面、 承压板 3 ' 邻接， 所述承压板 3 ' 另一侧与盒盖 5 ' 之间放置所述柔性储 液袋 4' ，输液管路系统的一端连接所述柔性储液袋 4' ，在该技术方案的一个具 体实施例中， 所述弹性变形体 2 ' 为弹性支架， 其包括动杆一、动杆二、动杆三、 动杆四、 两对肋板、 拉伸弹簧及转轴， 整个弹性支架呈一长方体结构， 动杆一、 动杆二、动杆三、动杆四依次平行分布于长方体的四个角上， 转轴与所述各动杆 平行设置且位于长方体的中心， 每对肋板包括肋板一及肋板二，肋板一中部铰接 于转轴，胁板一两端分别铰接于动杆一与动杆三纵向一端，肋板二中部铰接于转 轴，肋板二两端分别铰接于动杆二与动杆四纵向一端， 且同一对肋板的肋板一与 肋板二与各动杆的铰接部分位于长方体的同一侧面，所述拉伸弹簧两端分别设于 相邻的两根动杆上。该种结构的输液装置在使用的时候， 需要人工把弹性支架压 至极限位置进行固定， 然后装入柔性储液袋， 使用相当不便， 有待于进一步的改 进。  Referring to FIG. 4, Chinese Patent No. CN2892110Y, published on Apr. 25, 2007, discloses an infusion device which is designed by the inventor a year ago and includes a box body and an elastic deformation body 2' which is sequentially disposed in the box body. a pressure receiving plate 3', a flexible liquid storage bag 4', and a cover 5' disposed on the casing, and the elastic deformation body 2' is respectively deformed along the direction of deformation of the elastic deformation body 2' The inner side of the casing, the bearing plate 3' is adjacent, the flexible liquid storage bag 4' is placed between the other side of the bearing plate 3' and the lid 5', and one end of the infusion line system is connected to the flexible The liquid storage bag 4', in a specific embodiment of the technical solution, the elastic deformation body 2' is an elastic bracket, which comprises a moving rod 1, a moving rod 2, a moving rod 3, a moving rod 4, and two pairs of ribs The tension spring and the rotating shaft have a rectangular parallelepiped structure, and the moving rod 1, the moving rod 2, the moving rod 3, and the moving rod 4 are sequentially arranged in parallel on the four corners of the rectangular parallelepiped, and the rotating shaft is arranged in parallel with the moving rods. And located at the center of the cuboid, each pair of ribs includes a rib The rib plate 2, the middle portion of the rib plate is hinged to the rotating shaft, and one end of the dam plate is respectively hinged to the longitudinal end of the moving rod and the moving rod, and the middle portion of the rib plate is hinged to the rotating shaft, and the two ends of the rib plate are respectively hinged to the moving rod 2 and The longitudinal ends of the moving rods are four, and the ribs of the same pair of ribs and the hinge parts of the ribs 2 and the moving rods are located on the same side of the rectangular parallelepiped, and the two ends of the tension spring are respectively disposed on the adjacent two moving rods. . When the infusion device of this structure is used, it is necessary to manually press the elastic support to the limit position for fixation, and then load into the flexible liquid storage bag, which is quite inconvenient to be used, and further improvement is needed.
发明内容 Summary of the invention
本发明的目的是提供一种使用更为方便的自动输液装置。  It is an object of the present invention to provide an automatic infusion device that is more convenient to use.
本发明的技术方案是这样的： 一种自动输液装置， 包括盒体、 弹性变形体、 承压板及盖体，所述盖体盖设于盒体上形成一密闭容腔，所述弹性变形体设于盒 体与盖体之间且沿盒体的厚度方向可弹性变形放置，所述承压板设于盖体与弹性 变形体之间， 所述弹性变形体上设有驱动其克服回弹力形变的张紧装置。 The technical solution of the present invention is as follows: an automatic infusion device comprising a box body, an elastic deformation body, a pressure receiving plate and a cover body, wherein the cover body cover is formed on the box body to form a closed cavity, the elastic deformation The body is disposed between the box body and the cover body and is elastically deformable along the thickness direction of the box body, and the bearing plate is disposed on the cover body and the elastic body Between the deformable bodies, the elastically deformable body is provided with a tensioning device that drives it to overcome the resilience deformation.
上述自动输液装置， 所述弹性变形体大致呈一长方体结构， 其包括动杆一、 动杆二、 动杆三、 动杆四、 两对肋板、 拉伸弹簧及转轴， 所述动杆一、 动杆二、 动杆三、动杆四依次平行分布于长方体的四个侧沿上，转轴与所述各动杆平行设 置且位于长方体的中心，每对肋板包括肋板一及肋板二，肋板一中部铰接于转轴， 胁板一两端分别铰接于动杆一与动杆三纵向一端，肋板二中部铰接于转轴，肋板 二两端分别铰接于动杆二与动杆四纵向一端，且两对肋板分别位于长方体的前后 两侧面， 所述拉伸弹簧两端分别设于相邻的两根动杆上。  In the above automatic infusion device, the elastic deformation body has a substantially rectangular parallelepiped structure, and includes a moving rod 1, a moving rod 2, a moving rod 3, a moving rod 4, two pairs of rib plates, a tension spring and a rotating shaft, and the moving rod The moving rod 2, the moving rod 3, and the moving rod 4 are sequentially arranged in parallel on the four side edges of the rectangular parallelepiped, and the rotating shaft is arranged in parallel with the moving rods and located at the center of the rectangular parallelepiped, each pair of ribs including the ribs and the ribs Second, the middle part of the rib is hinged to the rotating shaft, and one end of the dam is hinged to the longitudinal end of the moving rod and the moving rod respectively, and the middle part of the rib is hinged to the rotating shaft, and the two ends of the rib are respectively hinged to the moving rod 2 and the moving rod Four longitudinal ends, and two pairs of ribs are respectively located on the front and rear sides of the rectangular parallelepiped, and two ends of the tension spring are respectively disposed on the adjacent two moving rods.
上述自动输液装置， 所述张紧装置包括主动齿轮、 从动齿轮及两个齿条， 所述主动齿轮轴向一端设有转动手柄用于驱动主动齿轮转动，所述从动齿轮由同 轴设置的大齿轮和小齿轮组成， 大齿轮与主动齿轮啮合传动设置，两个齿条的一 端分别与设有拉伸弹簧的两根动杆铰接， 小齿轮与两个齿条啮合传动设置。  In the above automatic infusion device, the tensioning device includes a driving gear, a driven gear and two racks, and one end of the driving gear is provided with a rotating handle for driving the driving gear, and the driven gear is coaxially arranged. The large gear and the pinion are composed of a large gear and a driving gear, and one end of each of the two racks is respectively hinged with two moving rods provided with a tension spring, and the pinion gear and the two racks are meshed and arranged.
上述自动输液装置，所述张紧装置设有用于把弹性变形体固定于张紧状态的 定位装置。  In the above automatic infusion device, the tensioning device is provided with a positioning device for fixing the elastically deformable body to a tensioned state.
上述自动输液装置，所述定位装置包括一棘齿及转动手柄，所述棘齿可转动 地设于盒体上，棘齿的自由端顶设于主动齿轮或大齿轮的轮齿上，转动手柄设于 盒体与棘齿之间用于驱动棘齿转动。  In the above automatic infusion device, the positioning device comprises a ratchet and a rotating handle, the ratchet is rotatably disposed on the casing, and the free end of the ratchet is disposed on the gear of the driving gear or the large gear, and the rotating handle is It is disposed between the box body and the ratchet for driving the ratchet rotation.
通过采用前述技术方案，本发明的有益效果是： 通过在弹性变形体上增设张 紧装置， 从而可以轻易地把弹性变形体撑开至最大张紧状态，进而可以方便地在 承压板与盖体之间放置储液袋，整个操作过程相对于公知的输液装置，具有省力、 安全、 简便等优点。  By adopting the foregoing technical solution, the beneficial effects of the present invention are: by adding a tensioning device on the elastic deformation body, the elastic deformation body can be easily opened to the maximum tension state, and thus the pressure bearing plate and the cover can be conveniently arranged. The liquid storage bag is placed between the bodies, and the whole operation process has the advantages of labor saving, safety, and convenience compared with the known infusion device.
附图说明 DRAWINGS
图 1为实施例的立体图；  Figure 1 is a perspective view of an embodiment;
图 2为实施例的立体分解图；  Figure 2 is an exploded perspective view of the embodiment;
图 3为实施例弹性变形体及其张紧装置立体图；  Figure 3 is a perspective view of an elastic deformation body and a tensioning device thereof;
图 4是公知的输液装置立体分解图；  Figure 4 is an exploded perspective view of a known infusion device;
具体实施方式 detailed description
本发明是在 2007年 4月 25日公告的中国专利 CN2892110Y公开的一种输液 装置的基础上所做的改进，相信仔细阅读该技术方案将能更好的理解本发明所要 解决的技术问题、 所采用的技术方案及因此而获得的有益效果。  The present invention is based on an infusion device disclosed in Chinese Patent No. CN2892110Y published on April 25, 2007. It is believed that a careful reading of the technical solution will better understand the technical problems to be solved by the present invention. The technical solution adopted and the beneficial effects obtained thereby.
参考图 1、 图 2及图 3， 实施例公开一种自动输液装置， 包括盒体 1、 弹性 变形体 2、 承压板 3、 张紧装置 4及盖体 5， 其中所述盖体 5盖设于盒体 1上形 成一密闭容腔，所述弹性变形体 2设于盒体 1与盖体 5之间且沿盒体 1的厚度方 向可弹性变形放置，所述承压板 3设于盖体 5与弹性变形体 2之间，这样当弹性 变形体 2变形向下收缩时，承压板 3跟着下移从而在承压板 3与盖体 5之间形成 容腔，储液袋可置入该容腔内， 并且所述弹性变形体 2上设有驱动其克服回弹力 形变的张紧装置 4及用于将弹性变形体 2固定在张紧状态的定位装置 6， 所述盖 体 5—侧沿与盒体 1铰接， 盒体 1另一侧沿通过两个搭扣 11可释放地将盖体 5 扣合于其上表面。 Referring to Figures 1, 2 and 3, the embodiment discloses an automatic infusion device comprising a case 1 and elasticity The deformation body 2, the pressure receiving plate 3, the tensioning device 4, and the cover body 5, wherein the cover body 5 is disposed on the casing 1 to form a closed cavity, and the elastic deformation body 2 is disposed on the casing 1 and the cover The body 5 is elastically deformable along the thickness direction of the casing 1. The pressure receiving plate 3 is disposed between the cover body 5 and the elastic deformation body 2, so that when the elastic deformation body 2 is deformed downwardly, the pressure is pressed. The plate 3 is moved downward to form a cavity between the pressure receiving plate 3 and the cover body 5, and the liquid storage bag can be placed in the cavity, and the elastic deformation body 2 is provided with a piece that drives the deformation thereof to overcome the rebound force. a fastening device 4 and a positioning device 6 for fixing the elastic deformation body 2 in a tension state, the cover body 5 - the side edge is hinged to the casing 1 , and the other side of the casing 1 is released by the two buckles 11 The cover 5 is snapped to the upper surface thereof.
其中所述弹性变形体 2大致呈一长方体结构，其包括动杆一 21、动杆二 22、 动杆三 23、 动杆四 34、 两对肋板、 两个拉伸弹簧 （图中未示出） 及转轴 27， 所 述动杆一 21、 动杆二 22、 动杆三 23、 动杆四 24依次平行分布于长方体的四个 侧沿上， 转轴 27设于长方体的中心且与各动杆平行设置， 每对肋板包括肋板一 25及肋板二 26，肋板一 25中部铰接于转轴 27上，胁板一 25两端分别铰接于动 杆一 21与动杆三 23纵向一端， 肋板二 26中部铰接于转轴 27， 肋板二 26两端 分别铰接于动杆二 22与动杆四 24纵向一端，且两对肋板分别位于长方体的前后 两侧面，两个拉伸弹簧分别位于长方体前后两侧面， 且各拉伸弹簧的两端分别设 于动杆一 21及动杆二 22上。  The elastic deformation body 2 has a substantially rectangular parallelepiped structure, and includes a moving rod 21, a moving rod 22, a moving rod 3 23, a moving rod 4 34, two pairs of ribs, and two tension springs (not shown) And the rotating shaft 27, the moving rod 21, the moving rod 22, the moving rod 3 23, and the moving rod 24 are sequentially arranged in parallel on the four side edges of the rectangular parallelepiped, and the rotating shaft 27 is disposed at the center of the rectangular parallelepiped and moves with each other The rods are arranged in parallel, each pair of ribs includes a rib plate 25 and a rib plate 26, and the middle portion of the rib plate 25 is hinged to the rotating shaft 27, and the two ends of the dam plate 25 are respectively hinged to the longitudinal end of the moving rod 21 and the moving rod 3 23 The middle portion of the ribs 26 is hinged to the rotating shaft 27, and the two ends of the ribs 26 are respectively hinged to the longitudinal ends of the moving rod 22 and the moving rods 24, and the two pairs of ribs are respectively located at the front and rear sides of the rectangular parallelepiped, and two tension springs are respectively They are respectively located on the front and rear sides of the rectangular parallelepiped, and the two ends of each tension spring are respectively disposed on the moving rod 21 and the moving rod 22 .
所述张紧装置 4包括主动齿轮 41、 从动齿轮 42及两个齿条 43， 所述盒体 1上设有下固定板 12及上固定板 13， 所述主动齿轮 41可转动地设于上固定板 13及下固定板 12之间， 主动齿轮 41的轴向一端向下延伸并穿过盒体 1底面侧 壁， 一旋转手柄 44与主动齿轮 41位于盒体 1底面的轴向端部可分离设置，旋转 手柄 44用于驱动主动齿轮 41旋转，所述从动齿轮 42亦设于上固定板 13与下固 定板 12之间， 从动齿轮 42包括同轴设置的大齿轮 421与小齿轮 422， 所述大齿 轮 421与主动齿轮 41啮合传动设置， 两个齿条 43分别并列铰接于动杆一 21及 动杆二 22上，小齿轮 422分别与两个齿条 43啮合传动设置，从而当旋转手柄 44 驱动主动齿轮 41转动时， 大齿轮 421带动小齿轮 422同步转动， 进而驱动两个 齿条 43相背运动， 使得整个弹性变形体 2克服拉伸弹簧的弹力变形， 抽象地说 就是弹性变形体 2的长度增加， 高度减小， 整个过程就是被压扁的过程， 以便在 承压板 3与盖体 5之间让出储液袋的容积。  The tensioning device 4 includes a driving gear 41, a driven gear 42 and two racks 43. The box body 1 is provided with a lower fixing plate 12 and an upper fixing plate 13, and the driving gear 41 is rotatably disposed on Between the upper fixing plate 13 and the lower fixing plate 12, one end of the driving gear 41 extends downward and passes through the side wall of the bottom surface of the casing 1. A rotating handle 44 and the driving gear 41 are located at the axial end of the bottom surface of the casing 1. Separably disposed, the rotating handle 44 is configured to drive the driving gear 41 to rotate. The driven gear 42 is also disposed between the upper fixing plate 13 and the lower fixing plate 12. The driven gear 42 includes a coaxially disposed large gear 421 and small. a gear 422, the large gear 421 is meshed with the driving gear 41, and the two racks 43 are respectively hingedly connected to the moving rod 21 and the moving rod 22, respectively, and the small gear 422 is meshed with the two racks 43 respectively. Therefore, when the rotating handle 44 drives the driving gear 41 to rotate, the large gear 421 drives the pinion 422 to rotate synchronously, thereby driving the two racks 43 to move back, so that the entire elastic deformation body 2 is deformed against the elastic force of the tension spring, abstractly Is the length of the elastic deformable body 2 is increased, the height is reduced, the whole process is the process of flattened, so that the volume of the reservoir bag between the cover 3 and the bearing plate 5.
所述张紧装置 4上设有用于把弹性变形体 2固定于张紧状态的定位装置 6， 所述定位装置 6包括一棘齿 61及转动手柄 62， 所述棘齿 61的一端可转动地设 于上固定板 13与下固定板 12之间，棘齿 61的自由端顶设于主动齿轮 41的轮齿 上， 棘齿 61的铰接轴延伸至盒体 1底面外侧， 转动手柄 62与棘齿 61的铰接轴 刚性连接， 从而当旋转手柄 44把整个弹性变形体 2拉伸至极限张紧状态时， 转 动手柄 62把棘齿 61的自由端顶设于主动齿轮 41的轮齿上防止其反向转动， 此 时， 即可轻松地把储液袋放进承压板 3与盖体 5之间， 使用的时候， 把盖体 5 通过搭扣 11扣紧，转动手柄 62把棘齿 61从主动齿轮 41上移走， 则整个弹性变 形体 2在拉伸弹簧的作用下向上复位， 整个过程抽象为长方向长度变小、高度增 加的过程， 该过程把承压板 3向上推动，进行把承压板 3与盖体 5之间储液袋里 面的液体推注至患者的身体。 The tensioning device 4 is provided with a positioning device 6 for fixing the elastic deformation body 2 to the tension state. The positioning device 6 includes a ratchet 61 and a rotating handle 62. One end of the ratchet 61 is rotatably Provided between the upper fixing plate 13 and the lower fixing plate 12, the free ends of the ratchet teeth 61 are disposed on the teeth of the driving gear 41 The hinge shaft of the ratchet 61 extends to the outside of the bottom surface of the casing 1, and the rotating handle 62 is rigidly connected with the hinge shaft of the ratchet 61, so that when the rotating handle 44 stretches the entire elastic deformation body 2 to the limit tension state, the rotation The handle 62 has the free end of the ratchet 61 disposed on the teeth of the driving gear 41 to prevent reverse rotation. At this time, the liquid storage bag can be easily placed between the bearing plate 3 and the cover 5, and used. When the cover body 5 is fastened by the buckle 11 and the handle 62 is rotated to remove the ratchet teeth 61 from the driving gear 41, the entire elastic deformation body 2 is reset upward by the tension spring, and the whole process is abstracted into a long length. The process of reducing the length of the direction and increasing the height, the process pushes the bearing plate 3 upward, and pushes the liquid in the liquid storage bag between the bearing plate 3 and the cover 5 to the body of the patient.

Claims

权利要求书 Claim
1、 一种自动输液装置， 其特征在于： 包括盒体、 弹性变形体、 承压板及盖 体，所述盖体盖设于盒体上形成一密闭容腔，所述弹性变形体设于盒体与盖体之 间且沿盒体的厚度方向可弹性变形放置， 所述承压板设于盖体与弹性变形体之 间， 所述弹性变形体上设有驱动其克服回弹力形变的张紧装置。 An automatic infusion device, comprising: a box body, an elastic deformation body, a pressure receiving plate and a cover body, wherein the cover body cover is formed on the box body to form a closed cavity, and the elastic deformation body is disposed on The box body and the cover body are elastically deformed and placed along the thickness direction of the box body, and the pressure receiving plate is disposed between the cover body and the elastic deformation body, and the elastic deformation body is provided with driving to overcome the deformation of the resilient force. Tensioning device.
2、 根据权利要求 1所述的自动输液装置， 其特征在于： 所述弹性变形体大 致呈一长方体结构， 其包括动杆一、 动杆二、 动杆三、 动杆四、 两对肋板、 拉伸 弹簧及转轴， 所述动杆一、 动杆二、 动杆三、 动杆四依次平行分布于长方体的四 个侧沿上，转轴与各动杆平行设置且位于长方体的中心， 每对肋板包括肋板一及 肋板二，肋板一中部铰接于转轴，胁板一两端分别铰接于动杆一与动杆三纵向一 端， 肋板二中部铰接于转轴， 肋板二两端分别铰接于动杆二与动杆四纵向一端， 且两对肋板分别位于长方体的前后两侧面，所述拉伸弹簧两端分别设于相邻的两 根动杆上。  2. The automatic infusion device according to claim 1, wherein: the elastic deformation body has a substantially rectangular parallelepiped structure, and comprises a moving rod 1, a moving rod 2, a moving rod 3, a moving rod 4, and two pairs of ribs. The tension spring and the rotating shaft, the moving rod 1, the moving rod 2, the moving rod 3, and the moving rod 4 are sequentially arranged in parallel on the four side edges of the rectangular parallelepiped, and the rotating shaft is arranged in parallel with each moving rod and located at the center of the rectangular parallelepiped, each The rib plate comprises a rib plate and a rib plate 2. The middle portion of the rib plate is hinged to the rotating shaft, and one end of the dam plate is respectively hinged to the longitudinal end of the moving rod and the moving rod, and the middle portion of the rib plate is hinged to the rotating shaft, and the rib plate is two The ends are respectively hinged to the longitudinal ends of the moving rods 2 and the moving rods, and the two pairs of ribs are respectively located on the front and rear sides of the rectangular parallelepiped, and the two ends of the tension spring are respectively disposed on the adjacent two moving rods.
3、 根据权利要求 2所述的自动输液装置， 其特征在于： 所述张紧装置包括 主动齿轮、从动齿轮及两个齿条，所述主动齿轮轴向一端设有转动手柄用于驱动 主动齿轮转动，所述从动齿轮由同轴设置的大齿轮和小齿轮组成， 大齿轮与主动 齿轮啮合传动设置，两个齿条的一端分别与设有拉伸弹簧的两根动杆铰接， 小齿 轮与两个齿条啮合传动设置。  3. The automatic infusion device according to claim 2, wherein: the tensioning device comprises a driving gear, a driven gear and two racks, and the driving gear is provided with a rotating handle at one end of the driving gear for driving the driving. The gear rotates, the driven gear is composed of a coaxially arranged large gear and a pinion gear, and the large gear and the driving gear are meshed and driven, and one ends of the two racks are respectively hinged with two moving rods provided with a tension spring, small The gear meshes with the two racks to drive the drive.
4、 根据权利要求 3所述的自动输液装置， 其特征在于： 所述张紧装置设有 用于把弹性变形体固定于张紧状态的定位装置。  The automatic infusion device according to claim 3, wherein the tensioning device is provided with positioning means for fixing the elastically deformable body to the tensioned state.
5、 根据权利要求 4所述的自动输液装置， 其特征在于： 所述定位装置包括 一棘齿及转动手柄，所述棘齿可转动地设于盒体上，棘齿的自由端顶设于主动齿 轮或大齿轮的轮齿上， 转动手柄设于盒体与棘齿之间用于驱动棘齿转动。  The automatic infusion device according to claim 4, wherein: the positioning device comprises a ratchet and a rotating handle, the ratchet is rotatably disposed on the casing, and the free end of the ratchet is disposed on the On the teeth of the driving gear or the large gear, a rotating handle is disposed between the casing and the ratchet for driving the ratchet rotation.
PCT/CN2008/072119 2008-07-11 2008-08-23 Automatic transfusion device WO2010003291A1 (en)

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