WO2015085929A1 - 用于注射泵的注射器的推柄卡紧装置 - Google Patents

用于注射泵的注射器的推柄卡紧装置 Download PDF

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Publication number
WO2015085929A1
WO2015085929A1 PCT/CN2014/093505 CN2014093505W WO2015085929A1 WO 2015085929 A1 WO2015085929 A1 WO 2015085929A1 CN 2014093505 W CN2014093505 W CN 2014093505W WO 2015085929 A1 WO2015085929 A1 WO 2015085929A1
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WO
WIPO (PCT)
Prior art keywords
syringe
housing
connecting rod
lever
link
Prior art date
Application number
PCT/CN2014/093505
Other languages
English (en)
French (fr)
Inventor
赵晨
邹海涛
Original Assignee
深圳市科曼医疗设备有限公司
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 深圳市科曼医疗设备有限公司 filed Critical 深圳市科曼医疗设备有限公司
Publication of WO2015085929A1 publication Critical patent/WO2015085929A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • 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
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546—Front-loading type injectors
    • 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
    • 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
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1458—Means for capture of the plunger flange
    • 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
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically

Definitions

  • the present invention relates to a push handle clamping device for a syringe of a syringe pump.
  • a push handle clamping device for a syringe of a syringe pump comprising:
  • a lever is received in the housing, and a middle portion of the lever is rotatably connected to the housing;
  • a connecting rod slidably disposed in the housing, and one end is movably connected to one end of the lever;
  • a limiting member is received in the housing and fixed on the connecting rod;
  • the elastic member is received in the casing and sleeved on the connecting rod, and two ends of the elastic member respectively abut against the inner wall of the casing and the limiting member;
  • a clamping jaw disposed on the housing and fixedly coupled to an end of the connecting rod away from the lever, the clamping jaw cooperating with an outer surface of the housing to clamp a push handle of the syringe;
  • a button slidably disposed on the housing, the button being in contact with an end of the lever away from the link, the button being slidable toward the interior of the housing to urge the lever to rotate And sliding the link in a direction protruding from the housing.
  • the base further includes a base fixed in the housing, the base is provided with a through hole, the link is slidably disposed through the through hole, and the elastic member is The limiting member is received in the through hole, and an end of the elastic member away from the limiting member abuts against a sidewall of the through hole.
  • the support sleeve and the shaft pin are further disposed in the housing, and an end surface of one end of the support sleeve is fixedly connected to the base, and opposite sides of the other end of the support sleeve are correspondingly opened.
  • a guide chute and the connecting rod is rotatably disposed through the support sleeve, the shaft pin is fixedly disposed on the connecting rod, and the shaft pin is disposed along a radial direction of the connecting rod
  • the two ends of the connecting rod protruding from the connecting rod are respectively received in the guiding chutes on opposite sides of the supporting sleeve, and are slidable along the guiding chute.
  • the guiding chute has a straight groove portion and a spiral groove portion communicating with the straight groove portion, and the straight groove portion is disposed near the lever, and the shaft pin protrudes from the connection Both ends of the rod slide along the spiral groove portions, respectively, to rotate the link and slide in a direction protruding from the housing.
  • the method further includes a gland housed in the housing and fixedly connected to an end of the lever away from the button, the link being away from the end of the jaw and the gland activity connection.
  • the gland is provided with a receiving groove, and one end of the connecting rod away from the clamping jaw is rotatably received in the receiving groove.
  • the bearing further includes a bearing received in the receiving groove, and the bearing sleeve is disposed at an end of the connecting rod away from the clamping jaw and has an interference fit with the connecting rod.
  • one end of the connecting rod forms a constricted portion
  • the bearing is sleeved on the constricted portion and is in an interference fit with the constricted portion.
  • the sleeve further includes a bushing penetrating through the through hole and fixedly connected to a sidewall of the through hole, and the connecting rod is slidably disposed on the bushing And the link is rotatable within the sleeve.
  • the clamping jaw includes a cylindrical fixing portion and a clamping piece fixedly connected to the cylindrical fixing portion at one side, and the connecting rod is fixedly disposed away from one end of the lever In the cylindrical fixing portion, the clamping piece cooperates with the outer surface of the housing to clamp the push handle of the syringe.
  • the above-mentioned push handle clamping device for a syringe of a syringe pump comprises a housing, a lever, a connecting rod, a limiting member, an elastic member, a clamping jaw and a button. Since the button is in contact with one end of the lever, the button is pressed to face The inside of the housing slides to push the lever to rotate, and the anti-pushing link slides in the direction of extending out of the housing, and the jaws fixedly connected with the link slides away from the housing, and the push handle of the syringe can be Placed on the housing, release the button, under the action of the elastic member, the connecting rod slides in the direction of the inside of the housing, and drives the clamping jaw to slide toward the housing, thereby clamping the plunger of the syringe Between the jaw and the outer surface of the housing, since the jaw is directly pressed against the push handle of the syringe, the plunger of the syringe can be more firmly clamped, thereby
  • FIG. 1 is a schematic structural view of a push handle clamping device for a syringe of a syringe pump according to an embodiment
  • FIG. 2 is a schematic structural view of the pusher gripping device of the syringe for the syringe pump shown in FIG. 1 omitting another angle of the housing;
  • FIG. 3 is a schematic structural view showing another angle of the housing of the pusher gripping device for the syringe of the syringe pump shown in FIG. 1;
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 3.
  • the handle clamping device 100 for a syringe of an injection pump comprises a housing 110 , a lever 120 , a connecting rod 130 , a limiting member 140 , and an elastic body.
  • the housing 110 is generally a square housing. Specifically, the end of one end of the housing 110 is formed with a groove 112.
  • the lever 120 is housed in the housing 110, and the middle portion of the lever 120 is rotatably coupled to the housing 110.
  • the lever 120 is generally elongated in the shape of a rod.
  • the link 130 has an elongated rod shape.
  • the connecting rod 130 is slidably disposed through the housing 110 and has one end movably coupled to one end of the lever 120. Specifically, one end of the link 130 forms a constricted portion 132. An end of the link 130 away from the constricted portion 132 extends out of the housing 110.
  • the limiting member 140 is received in the housing 110 and fixed to the connecting rod 130.
  • the limiting member 140 is a snap ring, and the snap ring is fixedly sleeved on the connecting rod 130. It can be understood that the limiting member 140 can also be a protrusion on the connecting rod 130.
  • the elastic member 150 is received in the housing 110 and sleeved on the connecting rod 130.
  • the two ends of the elastic member 150 respectively abut against the inner wall of the housing 110 and the limiting member 140, thereby providing an elastic restoring force to the connecting rod 130.
  • the resilient member 150 is a spring. It can be understood that the elastic member 150 can also be an elastic sleeve.
  • the clamping jaw 160 is disposed on the housing 110 and is fixedly connected to the end of the connecting rod 130 away from the lever 120.
  • the clamping jaw 160 cooperates with the outer surface of the housing 110 to clamp the push handle of the syringe (not shown) (not shown) ).
  • the clamping jaw 160 includes a cylindrical fixing portion 162 and a clamping piece 164 whose one end is fixedly connected to the cylindrical fixing portion 162 .
  • the one end of the connecting rod 130 away from the lever 120 is fixedly disposed through the cylindrical fixing portion 162.
  • the clamping piece 164 cooperates with the outer surface of the housing 110 to clamp the push handle of the syringe.
  • the width of the holding piece 164 gradually increases from one end to the other end.
  • one end of the connecting rod 130 away from the lever 120 is fixedly connected with the smaller end of the clamping piece 164, so that the larger end is pressed against the push handle of the syringe, thereby increasing the gap between the clamping jaw 160 and the push handle of the syringe.
  • the contact area enables the push handle of the syringe to be more firmly clamped on the housing 110, further reducing the risk of the syringe pusher being deflected off during the injection process, and being more secure.
  • the jaw 160 When the in-position detecting device (not shown) is further mounted on the syringe pump, the jaw 160 is placed close to the detecting button 400 of the in-position detecting device, and the end surface of the push handle of the syringe is placed on the detecting button 400 of the position detecting device. When the jaws 160 press the plunger of the syringe, it is also convenient to detect whether the syringe is in place.
  • the two claws 160 are two, and the connecting rod 130, the limiting member 140 and the elastic member 150 are corresponding to two, the two connecting rods 130 are arranged in parallel, and the two connecting rods 130 are away from the end of the clamping jaw 160.
  • the lever 120 is movably connected away from one end of the button 170.
  • the two jaws 160 are able to more securely grip the push handle of the syringe.
  • the button 170 is slidably disposed on the housing 110.
  • the button 170 is in contact with the end of the lever 120 away from the link 130.
  • the button 170 is slidable toward the inside of the housing 110 to push the lever 120 to rotate, so that the link 130 faces Slides in the direction of the housing 110.
  • the button 170 is slidably disposed in the recess 112.
  • the push handle clamping device 100 for the syringe of the syringe pump further includes a base 180 fixedly received in the housing 110.
  • the through hole 182 is defined in the base 180.
  • the connecting rod 130 is slidably disposed in the through hole 182.
  • the elastic member 150 and the limiting member 140 are received in the through hole 182, and the elastic member 150 is away from the end of the limiting member 140. It abuts against the side wall of the through hole 182.
  • the through holes 182 penetrate through the opposite surfaces of the base 180.
  • the through hole 182 has a receiving portion 184 and a shrink hole portion 186 that communicates with the receiving portion 184 , and the hole diameter of the receiving portion 184 is larger than the diameter of the shrink hole portion 186 , thereby limiting the link 130 .
  • the limiting member 140 and the elastic member 150 are received in the receiving portion 184 .
  • the handle clamping device 100 for the syringe of the syringe pump further includes a support sleeve 190 and a shaft pin 210 received in the housing 110.
  • the end surface of one end of the support sleeve 190 is fixedly connected with the base 180, and the support sleeve 190 is The opposite side of the other end is correspondingly provided with a guiding slot 192, and the connecting rod 130 is rotatably disposed through the supporting sleeve 190, the shaft pin 210 is fixedly disposed on the connecting rod 130, and the shaft pin 210 is along the connecting rod 130 Radially disposed, the two ends of the shaft pin 210 extending from the connecting rod 130 are respectively received in the guiding chutes 192 on opposite sides of the supporting sleeve 190, and are slidable along the guiding chute 192.
  • the support sleeve 190 includes a middle through tube portion (not shown) and a flange (not labeled) disposed along an edge of one end of the middle tube portion.
  • the flange is fixedly connected to the base 180.
  • the guiding chute 192 has a straight groove portion 194 and a spiral groove portion 196 communicating with the straight groove portion 194, and the straight groove portion 194 is disposed close to the lever 120, and the shaft pin 210 protrudes from the two ends of the connecting rod 130 along the spiral
  • the groove portion 196 slides to rotate the link 130 and slide in a direction to extend out of the housing 110.
  • the two ends of the shaft pin 210 slide along the guiding chutes 192 on opposite sides of the support sleeve 190, and first slide along the straight groove portion 194, and the connecting rod 130 slides in the direction of the protruding housing 110, and the clip
  • the claw 160 linearly moves away from the housing 110, and then slides in the spiral groove portion 196, and the link 130 continues to rotate in the direction of extending out of the housing 110, and drives the jaw 160 to continue away from the housing 110.
  • the rotational movement is performed such that the end of the clamping piece 164 of the jaw 160 away from the cylindrical fixing portion 162 is offset from the clamping area, thereby facilitating the placement of the syringe; when the button 170 is released, the elasticity of the elastic member 150 is released.
  • the shaft pin 210 first slides along the spiral groove portion 196, and the link 130 rotates while retracting in the direction of the housing 110, and the jaws 160 continue to rotate while moving toward the housing 110.
  • the shaft pin 210 slides along the straight groove portion 194, and the link 130 continues to slide back to the housing 110.
  • the jaws 160 continue toward the housing 110 Linear motion direction, and finally push the syringe handle 110 clamped on the housing.
  • the guide chute 210 By arranging the guide chute 210 to have two portions of the straight groove portion 194 and the spiral groove portion 196, and placing the straight groove portion 194 close to the lever 120 so that the jaws 160 move in the direction of the housing 110, the spiral back is first made. The movement is reduced, and when it is close to the push handle of the syringe, the linear retracting motion is performed, and finally the push handle of the syringe is pressed, thereby preventing the risk of the syringe being displaced during the installation process.
  • the guide chute 192 can be provided only in the form of a straight groove or only a spiral groove.
  • the handle gripping device 100 for the syringe of the syringe pump further includes a cap 220 that is received in the housing 110 and is fixedly connected to the end of the lever 120 away from the button 170.
  • the link 130 is away from the end of the gripper 160. It is movably connected to the gland 220.
  • one end of the lever 120 remote from the button 170 is rotatably fixedly coupled to the gland 220.
  • one end of the lever 120 away from the button 170 and the gland 220 are rotatably fixedly connected by a shaft pin.
  • the pressing cover 220 is provided with a receiving groove 222.
  • the one end of the connecting rod 130 away from the clamping claw 160 is rotatably received in the receiving groove 222.
  • the receiving groove 220 is substantially in a concave shape.
  • the gland 220 is substantially in the shape of a long strip.
  • the handle squeezing device 100 for the syringe of the syringe pump further includes a bearing 230 received in the receiving groove 222 of the cap 220.
  • the bearing 230 is sleeved at one end of the connecting rod 130 away from the jaw 160, and is connected
  • the rod 130 is interference fit, and a bearing 230 is sleeved on the link 130 to facilitate rotation of the link 130.
  • the outer ring of the bearing 230 is fixed to the inner wall of the receiving groove 222, and the inner ring of the bearing 230 is interference-fitted with the connecting rod 130.
  • the bearing 230 is sleeved over the constricted portion 132 of the link 130 and is in an interference fit with the constricted portion 132.
  • the sleeve 230 is placed over the constricted portion 132 of the link 130 to prevent the bearing 230 from sliding over the link 130.
  • the handle clamping device 100 for the syringe of the syringe pump further includes a sleeve 240.
  • the sleeve 240 is disposed through the through hole 182 and fixedly connected to the side wall of the through hole 182, and the connecting rod 130 is slidably worn.
  • the sleeve 240 is disposed, and the link 130 is rotatable within the sleeve 240.
  • the bushing 240 has a lubricating effect and can reduce the frictional force that the link 130 receives during the movement. It can be understood that the friction of the connecting rod 130 and the base 180 can be reduced without using the sleeve 240.
  • the base 180 uses a material having a lubricating effect.
  • the two receiving slots 222 are spaced apart from the two ends of the pressing cover 220.
  • the lever 120 is away from the end of the button 170 and the middle of the pressing cover 220.
  • the bearing 230 and the sleeve 240 correspond to two, and the through holes 182 on the base 180 correspond to two.
  • the handle clamping device 100 for the syringe of the syringe pump further includes a rotating rod 250 received in the housing 110.
  • the middle portion of the rotating rod 250 is rotatably connected with the housing 110, and the rotating rod 250 is The opposite sides of one end are in contact with the end of the button 170 and the lever 120 away from the gland 220, respectively.
  • the length of the rotating rod 250 is greater than the length of the lever 120.
  • the other end of the rotating rod 250 is in contact with the push rod assembly control handle (not shown) of the syringe pump (not shown), and by rotating the button 170, the rotating rod 250 is rotated while the lever 120 is rotated.
  • Device 100 can be moved along the push rod. More specifically, one end of the rotating lever 250 away from the button 170 is provided with a roller (not shown), and the roller is in contact with the push lever assembly lever. Specifically, the rotating rod 250 is provided with a protrusion 252 which is in contact with the end of the lever 120 away from the pressing cover 220.
  • the handle clamping device 100 for the syringe of the syringe pump further includes a roller 260 received in the housing 110.
  • the roller 260 is fixed to one end of the lever 120 away from the pressing cover 220, and the side of the rotating lever 250 away from the button is The rollers 260 are in contact with each other, and the lever 120 is pushed by the rotating lever 250 to rotate the lever 120.
  • the push handle clamping device 100 for the syringe of the syringe pump described above includes a housing 110, a lever 120, a link 130, a limiting member 140, an elastic member 150, a clamping jaw 160 and a button 170, since the button 170 and one end of the lever 120 In contact with each other, the button 170 is pressed to slide in the direction of the inside of the housing 110 to push the lever 120 to rotate, and the resisting link 130 is slid in the direction of the protruding housing 110, and is fixedly coupled to the link 130.
  • the jaw 160 slides away from the housing 110, and the push handle of the syringe can be placed on the housing 110 to release the button 170.
  • the link 130 faces the inside of the housing 110. Sliding in the direction and driving the jaw 160 to slide toward the housing 110, so that the push handle of the syringe is clamped between the jaw 160 and the outer surface of the housing 110, since the jaw 160 is directly pressed against the syringe
  • the push handle can be more firmly clamped on the push handle of the syringe, which avoids the risk of the syringe falling off, and is safer; and all the actions only need to press the button 170 with one hand to realize the installation and disassembly of the syringe. Very convenient.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (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

一种用于注射泵的注射器的推柄卡紧装置（100），包括壳体（110）、杠杆（120）、连杆（130）、限位件（140）、弹性件（150）、夹爪（160）及按钮（170）。杠杆（120）的中部与壳体（110）转动连接，连杆（130）可滑动地穿设于壳体（110），且一端与杠杆（120）的一端活动连接。限位件（140）固定于连杆（130）上，弹性件（150）套设于连杆上，弹性件的两端分别与壳体（110）的内壁和限位件（140）相抵持。夹爪（160）设置于壳体（110）上，并与连杆远离杠杆的一端固定连接，夹爪与壳体的外表面相配合可卡紧注射器的推柄。按钮（170）可滑动地穿设于壳体（110）上，并与杠杆远离连杆的一端相接触。按钮朝壳体内部方向可滑动以推动杠杆转动，而使连杆朝伸出壳体的方向滑动，操作方便。

Description

用于注射泵的注射器的推柄卡紧装置
【技术领域】
本发明涉及一种用于注射泵的注射器的推柄卡紧装置。
【背景技术】
目前，国内各医院在临床静脉注射中，因为注射泵注射的精确性以及便于调控性，正逐步推广使用注射泵实现自动注射。在使用注射泵时，安装注射器后端推柄处的结构目前市面上主要有两种类型，一种是固定的结构，通过弹性的倒钩卡住推柄，当安装注射器时，需要先拉开扳把，然后一手按下注射泵推注头上离合并拖动推杆移至注射器后端推柄处，另一只手将注射器推柄卡入推注头上的固定结构内，调整好后放入卡槽合上扳把，然而这种类型的需要医务人员同时使用双手操作，且操作比较麻烦，十分的不方便；另一种是通过相互对转的细长夹爪框住注射器后端推柄附近位置，防止注射器推柄偏离推杆，这种类型能够使用单手操作，但是这种类型的卡住方式实际上是框住注射器推柄前端的推杆，不能直接作用于注射器推柄，很不安全。
【发明内容】
鉴于此，有必要提供一种操作方便且较为安全的用于注射泵的注射器的推柄卡紧装置。
一种用于注射泵的注射器的推柄卡紧装置，包括：
壳体；
杠杆，收容于所述壳体内，所述杠杆的中部与所述壳体转动连接；
连杆，可滑动地穿设于所述壳体，且一端与所述杠杆的一端活动连接；
限位件，收容于所述壳体内，并固定于所述连杆上；
弹性件，收容于所述壳体内，并套设于所述连杆上，所述弹性件的两端分别与所述壳体的内壁和所述限位件相抵持；
夹爪，设置于所述壳体上，并与所述连杆远离所述杠杆的一端固定连接，所述夹爪与所述壳体的外表面相配合可卡紧注射器的推柄；及
按钮，可滑动地穿设于所述壳体上，所述按钮与所述杠杆远离所述连杆的一端相接触，所述按钮朝所述壳体内部的方向可滑动以推动所述杠杆转动，而使所述连杆朝伸出所述壳体的方向滑动。
在其中一个实施例中，还包括固定收容于所述壳体内的底座，所述底座上开设有贯通孔，所述连杆可滑动地穿设于所述贯通孔，所述弹性件与所述限位件收容于所述贯通孔内，所述弹性件远离所述限位件的一端与所述贯通孔的侧壁相抵持。
在其中一个实施例中，还包括收容于所述壳体内的支撑套及轴销，所述支撑套的一端的端面与所述底座固定连接，所述支撑套的另一端的相对两侧对应开设有导向滑槽，且所述连杆可转动地穿设于所述支撑套，所述轴销固定地穿设于所述连杆上，且所述轴销沿所述连杆的径向设置，所述轴销伸出所述连杆的两端分别收容于所述支撑套的相对两侧的导向滑槽中，并沿所述导向滑槽可滑动。
在其中一个实施例中，所述导向滑槽具有直槽部及与所述直槽部连通的螺旋槽部，并且所述直槽部靠近所述杠杆设置，所述轴销伸出所述连杆的两端分别沿所述螺旋槽部滑动，以使所述连杆转动并朝伸出所述壳体的方向滑动。
在其中一个实施例中，还包括收容于所述壳体内、且与所述杠杆远离所述按钮的一端固定连接的压盖，所述连杆远离所述夹爪的一端与所述压盖活动连接。
在其中一个实施例中，所述压盖上开设有收容槽，所述连杆远离所述夹爪的一端可转动地收容于所述收容槽内。
在其中一个实施例中，还包括收容于所述收容槽中的轴承，所述轴承套设于所述连杆远离所述夹爪的一端，并与所述连杆过盈配合。
在其中一个实施例中，所述连杆的一端形成缩颈部，所述轴承套设于所述缩颈部上，并与所述缩颈部过盈配合。
在其中一个实施例中，还包括轴套，所述轴套穿设于所述贯通孔，并与所述贯通孔的侧壁固定连接，所述连杆可滑动地穿设于所述轴套，且所述连杆在所述轴套内可转动。
在其中一个实施例中，所述夹爪包括中通的柱形固定部及一侧与所述柱形固定部固定连接的夹持片，所述连杆远离所述杠杆的一端固定地穿设于所述柱形固定部，所述夹持片与壳体的外表面相配合可卡紧所述注射器的推柄。
上述用于注射泵的注射器的推柄卡紧装置包括壳体、杠杆、连杆、限位件、弹性件、夹爪及按钮，由于按钮与杠杆的一端相接触，按下按钮，使其朝壳体内部的方向滑动以推动杠杆转动，而使抵推连杆朝伸出壳体的方向滑动，且使与连杆固定连接的夹爪朝远离壳体的方向滑动，可将注射器的推柄放置于壳体上，松开按钮，连杆在弹性件的作用下，连杆朝壳体的内部的方向滑动，并带动夹爪朝靠近壳体的方向滑动，从而使注射器的推柄卡紧在夹爪与壳体的外表面之间，由于夹爪是直接压紧在注射器的推柄上的，能够更加牢固的卡紧注射器的推柄上，避免了注射器脱落的风险，较为安全；且所有动作只需要通过单手按压按钮就能够是实现注射器的安装与拆卸，操作十分方便。
【附图说明】
图1为一实施方式的用于注射泵的注射器的推柄卡紧装置的结构示意图；
图2为图1所示的用于注射泵的注射器的推柄卡紧装置省略了壳体的另一角度的结构示意图；
图3为图1所示的用于注射泵的注射器的推柄卡紧装置的省略了壳体的另一角度的结构示意图；
图4为图3沿B-B线的剖面图。
【具体实施方式】
下面主要结合附图及具体实施例对用于注射泵的注射器的推柄卡紧装置作进一步详细的说明。
如图1、图2、图3及图4所示，一实施方式的用于注射泵的注射器的推柄卡紧装置100包括壳体110、杠杆120、连杆130、限位件140、弹性件150、夹爪160及按钮170。
壳体110大致为方形壳体。具体的，壳体110的一端的端部形成有凹槽112。
杠杆120收容于壳体110内，杠杆120的中部与壳体110转动连接。杠杆120大致为长条形杆状。
连杆130为长条形杆状。连杆130可滑动地穿设于壳体110，且一端与杠杆120的一端活动连接。具体的，连杆130的一端形成缩颈部132。连杆130远离缩颈部132的一端伸出壳体110。
限位件140收容于壳体110内，并固定于连杆130上。具体的，限位件140为卡环，卡环固定套设于连杆130上。可以理解，限位件140还可以是连杆130上的凸起。
弹性件150收容于壳体110内，并套设于连杆130上，弹性件150的两端分别与壳体110的内壁和限位件140相抵持，从而给连杆130提供一弹性回复力。在具体的实施例中，弹性件150为弹簧。可以理解，弹性件150还可以为弹性套筒。
夹爪160设置于壳体110上，并与连杆130远离杠杆120的一端固定连接，夹爪160与壳体110的外表面相配合可卡紧注射器（图未示）的推柄（图未示）。具体的，夹爪160包括中通的柱形固定部162及一端与柱形固定部162固定连接的夹持片164。其中，连杆130远离杠杆120的一端固定地穿设于柱形固定部162，夹持片164与壳体110的外表面相配合可卡紧注射器的推柄。具体的，夹持片164的宽度从一端到另一端逐渐增大。且连杆130远离杠杆120的一端与夹持片164的宽度较小的一端固定连接，使得宽度较大的一端压着注射器的推柄，从而增加了夹爪160与注射器的推柄之间的接触面积，使得注射器的推柄能够更加牢固地卡紧在壳体110上，进一步降低了注射器推柄在注射过程中的偏移脱落的风险，更加的安全。当注射泵上还安装有到位检测装置（图未示）时，将夹爪160靠近到位检测装置的检测按钮400设置，并将注射器的推柄的端面放置到位检测装置的检测按钮400上，此时，夹爪160压紧注射器的推柄，还可以便于检测注射器是否到位。
进一步的，夹爪160为两个，连杆130、限位件140及弹性件150均对应为两个，两个连杆130平行设置，且两个连杆130远离夹爪160的一端均与杠杆120远离按钮170的一端活动连接。两个夹爪160能够更加牢固地卡紧注射器的推柄。
按钮170可滑动地穿设于壳体110上，按钮170与杠杆120远离连杆130的一端相接触，按钮170朝壳体110内部的方向可滑动以推动杠杆120转动，而使连杆130朝伸出壳体110的方向滑动。具体的，按钮170可滑动地设置于凹槽112内。
请再次参阅图2、图3及图4，进一步的，用于注射泵的注射器的推柄卡紧装置100还包括固定收容于壳体110内的底座180。其中，底座180上开设有贯通孔182，连杆130可滑动地穿设于贯通孔182，弹性件150与限位件140收容于贯通孔182内，且弹性件150远离限位件140的一端与贯通孔182的侧壁相抵持。具体的，贯通孔182贯通底座180相对的两个表面。更具体的，贯通孔182具有收容部184及与收容部184连通的缩孔部186，且收容部184的孔径大于缩孔部186的孔径，从而对连杆130具有限位作用。其中，限位件140与弹性件150收容于收容部184内。
进一步的，用于注射泵的注射器的推柄卡紧装置100还包括收容于壳体110内的支撑套190及轴销210，支撑套190的一端的端面与底座180固定连接，支撑套190的另一端的相对两侧对应开设有导向滑槽192，且连杆130可转动地穿设于支撑套190，轴销210固定地穿设于连杆130上，且轴销210沿连杆130的径向设置，轴销210伸出连杆130的两端分别收容于支撑套190的相对两侧的导向滑槽192中，并沿导向滑槽192可滑动。具体的，支撑套190包括中通筒部（图未标）及沿中通筒部的一端的边缘设置的凸缘（图未标）。其中，凸缘与底座180固定连接。更具体的，导向滑槽192具有直槽部194及与直槽部194连通的螺旋槽部196，并且直槽部194靠近杠杆120设置，轴销210伸出连杆130的两端分别沿螺旋槽部196滑动，以使连杆130转动并朝伸出壳体110的方向滑动。当按下按钮170时，轴销210的两端沿支撑套190的相对两侧的导向滑槽192滑动，先沿直槽部194滑动，连杆130朝伸出壳体110的方向滑动，夹爪160朝远离壳体110的方向直线运动，然后在螺旋槽部196滑动，连杆130继续朝伸出壳体110的方向滑动的同时做旋转运动，并带动夹爪160继续朝远离壳体110的方向移动的同时做旋转运动，使夹爪160的夹持片164远离柱形固定部162的一端偏离夹持区域，这样便于注射器的放置；当松开按钮170时，在弹性件150的弹性回复力作用下，轴销210先沿螺旋槽部196滑动，连杆130朝缩回壳体110的方向滑动的同时做旋转运动，夹爪160继续朝靠近壳体110的方向移动的同时做旋转运动，直至夹持片164远离柱形固定部162的一端旋转到位于夹持区域的上方，然后轴销210再沿直槽部194滑动，连杆130继续朝缩回到壳体110的方向滑动，夹爪160继续朝靠近壳体110的方向做直线运动，最后将注射器的推柄卡紧在壳体110上。通过将导向滑槽210设置成具有直槽部194和螺旋槽部196两个部分，并将直槽部194靠近杠杆120设置，使得夹爪160靠近壳体110的方向移动时，先做螺旋回缩运动，待靠近注射器的推柄的时候，作直线回缩运动，最后压紧注射器的推柄，从而防止了注射器在安装过程中的偏移风险。可以理解，导向滑槽192可以设置仅为直槽或仅为螺旋槽的形式。
进一步的，用于注射泵的注射器的推柄卡紧装置100还包括收容于壳体110内、且与杠杆120远离按钮170的一端固定连接的压盖220，连杆130远离夹爪160的一端与压盖220活动连接。在具体的实施例中，杠杆120远离按钮170的一端与压盖220可转动地固定连接。具体的，杠杆120远离按钮170的一端与压盖220通过一个轴销实现可转动地固定连接。具体的，压盖220上开设有收容槽222，连杆130远离夹爪160的一端可转动地收容于收容槽222内。具体的，收容槽220大致为凹字形。压盖220大致为长条形板状。
进一步的，用于注射泵的注射器的推柄卡紧装置100还包括收容于压盖220的收容槽222中的轴承230，轴承230套设于连杆130远离夹爪160的一端，并与连杆130过盈配合，在连杆130上套设轴承230便于连杆130旋转。具体的，轴承230的外圈与收容槽222的内壁固定，轴承230的内圈与连杆130过盈配合。在具体的实施例中，轴承230套设于连杆130的缩颈部132上，并与缩颈部132过盈配合。将轴承230套设在连杆130的缩颈部132上可以防止轴承230在连杆130上滑动。
进一步的，用于注射泵的注射器的推柄卡紧装置100还包括轴套240，轴套240穿设于贯通孔182，并与贯通孔182的侧壁固定连接，连杆130可滑动地穿设于轴套240，且连杆130在轴套240内可转动。轴套240具有润滑效果，能够较小连杆130在运动过程中受到的摩擦力。可以理解，可以不采用轴套240减小连杆130与底座180的摩擦力，此时，底座180使用具有润滑作用的材料。
在具体的实施例中，连杆130为两个，收容槽222也为两个，两个收容槽222间隔设置在压盖220的两端，杠杆120远离按钮170的一端与压盖220的中部固定连接，此时，轴承230、轴套240对应两个，且底座180上的贯通孔182对应为两个。
请参阅图2，进一步的，用于注射泵的注射器的推柄卡紧装置100还包括收容于壳体110内的转动杆250，转动杆250的中部与壳体110转动连接，转动杆250的一端的相对两侧分别与按钮170及杠杆120远离压盖220的一端相接触。其中，转动杆250的长度大于杠杆120的长度。具体的，转动杆250的另一端与注射泵（图未标）的推杆组件控制柄（图未标）相接触，通过按压按钮170，使转动杆250推动杠杆120转动的同时，转动杆250的另一端推动推杆组件控制柄，使推杆组件（图未标）中的螺母（图未示）与丝杆（图未示）脱离，使整个用于注射泵的注射器的推柄卡紧装置100可以沿推杆移动。更具体的，转动杆250远离按钮170的一端设有滚轮（图未标），滚轮与推杆组件控制柄相接触。具体的，转动杆250上设有凸起252，凸起252与杠杆120远离压盖220的一端相接触。
进一步的，用于注射泵的注射器的推柄卡紧装置100还包括收容于壳体110内的滚轮260，滚轮260固定于杠杆120远离压盖220的一端，转动杆250远离按钮的一侧与滚轮260相接触，通过转动杆250推压滚轮260而使杠杆120转动。
上述用于注射泵的注射器的推柄卡紧装置100包括壳体110、杠杆120、连杆130、限位件140、弹性件150、夹爪160及按钮170，由于按钮170与杠杆120的一端相接触，按下按钮170，使其朝壳体110内部的方向滑动以推动杠杆120转动，而使抵推连杆130朝伸出壳体110的方向滑动，且使与连杆130固定连接的夹爪160朝远离壳体110的方向滑动，可将注射器的推柄放置于壳体110上，松开按钮170，连杆130在弹性件150的作用下，连杆130朝壳体110的内部的方向滑动，并带动夹爪160朝靠近壳体110的方向滑动，从而使注射器的推柄卡紧在夹爪160与壳体110的外表面之间，由于夹爪160是直接压紧在注射器的推柄上的，能够更加牢固的卡紧注射器的推柄上，避免了注射器脱落的风险，较为安全；且所有动作只需要通过单手按压按钮170就能够是实现注射器的安装与拆卸，操作十分方便。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种用于注射泵的注射器的推柄卡紧装置，其特征在于，包括：
    壳体；
    杠杆，收容于所述壳体内，所述杠杆的中部与所述壳体转动连接；
    连杆，可滑动地穿设于所述壳体，且一端与所述杠杆的一端活动连接；
    限位件，收容于所述壳体内，并固定于所述连杆上；
    弹性件，收容于所述壳体内，并套设于所述连杆上，所述弹性件的两端分别与所述壳体的内壁和所述限位件相抵持；
    夹爪，设置于所述壳体上，并与所述连杆远离所述杠杆的一端固定连接，所述夹爪与所述壳体的外表面相配合可卡紧注射器的推柄；及
    按钮，可滑动地穿设于所述壳体上，所述按钮与所述杠杆远离所述连杆的一端相接触，所述按钮朝所述壳体内部的方向可滑动以推动所述杠杆转动，而使所述连杆朝伸出所述壳体的方向滑动。
  2. 根据权利要求1所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，还包括固定收容于所述壳体内的底座，所述底座上开设有贯通孔，所述连杆可滑动地穿设于所述贯通孔，所述弹性件与所述限位件收容于所述贯通孔内，所述弹性件远离所述限位件的一端与所述贯通孔的侧壁相抵持。
  3. 根据权利要求2所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，还包括收容于所述壳体内的支撑套及轴销，所述支撑套的一端的端面与所述底座固定连接，所述支撑套的另一端的相对两侧对应开设有导向滑槽，且所述连杆可转动地穿设于所述支撑套，所述轴销固定地穿设于所述连杆上，且所述轴销沿所述连杆的径向设置，所述轴销伸出所述连杆的两端分别收容于所述支撑套的相对两侧的导向滑槽中，并沿所述导向滑槽可滑动。
  4. 根据权利要求3所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，所述导向滑槽具有直槽部及与所述直槽部连通的螺旋槽部，并且所述直槽部靠近所述杠杆设置，所述轴销伸出所述连杆的两端分别沿所述螺旋槽部滑动，以使所述连杆转动并朝伸出所述壳体的方向滑动。
  5. 根据权利要求4所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，还包括收容于所述壳体内、且与所述杠杆远离所述按钮的一端固定连接的压盖，所述连杆远离所述夹爪的一端与所述压盖活动连接。
  6. 根据权利要求5所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，所述压盖上开设有收容槽，所述连杆远离所述夹爪的一端可转动地收容于所述收容槽内。
  7. 根据权利要求6所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，还包括收容于所述收容槽中的轴承，所述轴承套设于所述连杆远离所述夹爪的一端，并与所述连杆过盈配合。
  8. 根据权利要求7所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，所述连杆的一端形成缩颈部，所述轴承套设于所述缩颈部上，并与所述缩颈部过盈配合。
  9. 根据权利要求4所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，还包括轴套，所述轴套穿设于所述贯通孔，并与所述贯通孔的侧壁固定连接，所述连杆可滑动地穿设于所述轴套，且所述连杆在所述轴套内可转动。
  10. 根据权利要求1所述的用于注射泵的注射器的推柄卡紧装置，其特征在于，所述夹爪包括中通的柱形固定部及一侧与所述柱形固定部固定连接的夹持片，所述连杆远离所述杠杆的一端固定地穿设于所述柱形固定部，所述夹持片与壳体的外表面相配合可卡紧所述注射器的推柄。
PCT/CN2014/093505 2013-12-10 2014-12-10 用于注射泵的注射器的推柄卡紧装置 WO2015085929A1 (zh)

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CN111544297A (zh) * 2019-03-20 2020-08-18 华中科技大学同济医学院附属协和医院 一种医用手持式电子配药注射器
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