CN107929868B - Push device for tube sealing liquid injector - Google Patents

Push device for tube sealing liquid injector Download PDF

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Publication number
CN107929868B
CN107929868B CN201810012364.XA CN201810012364A CN107929868B CN 107929868 B CN107929868 B CN 107929868B CN 201810012364 A CN201810012364 A CN 201810012364A CN 107929868 B CN107929868 B CN 107929868B
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China
Prior art keywords
bed body
wall
wheel
gear
pushing
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Active
Application number
CN201810012364.XA
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Chinese (zh)
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CN107929868A (en
Inventor
皮红英
霍春暖
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Chinese PLA General Hospital
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Chinese PLA General Hospital
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Priority to CN201810012364.XA priority Critical patent/CN107929868B/en
Publication of CN107929868A publication Critical patent/CN107929868A/en
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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
    • 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
    • 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
    • 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
    • A61M5/31—Details
    • 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
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
    • A61M5/31581—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by rotationally moving or pivoting actuator operated by user, e.g. an injection lever or handle
    • 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
    • A61M2005/1401—Functional features
    • A61M2005/1402—Priming
    • 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
    • A61M2206/00—Characteristics of a physical parameter; associated device therefor
    • A61M2206/10—Flow characteristics

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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

The invention provides a pushing device of a tube sealing liquid injector, which comprises: a bed body and a sliding block; the bed body comprises a first guide groove; the first end of the bed body extends upwards to form a baffle wall, and a through hole is formed in the baffle wall and is used for penetrating through a nipple of the injector; a rack is also formed on the upper side of the bed body, and is parallel to the first guide groove; the sliding block comprises a first supporting wall, a first protruding block is formed at the lower end of the first supporting wall, the first protruding block is slidably clamped in the first guide groove and cannot be separated from the upper opening of the first groove; a shaft is formed through the upper end of the first supporting wall; the shaft is fixedly provided with a gear and a brake wheel, and the gear and the brake wheel are respectively positioned at two sides of the first supporting wall; the gear is meshed with the rack; the actuating wheel is used for pushing the pushing hand of the injector through the curved surface of the actuating wheel; the actuating wheel is a cam or an eccentric wheel. By pushing the sliding block at a constant speed, the curved surface of the driving wheel outputs periodically changed pushing force, so that the impulse type output of the tube sealing liquid is realized.

Description

Push device for tube sealing liquid injector
Technical Field
The invention relates to a medical apparatus, in particular to a tube sealing liquid injector pushing device for pushing tube sealing liquid.
Background
For the indwelling needle or the PICC, after the infusion is finished, the liquid medicine in the indwelling needle or the PICC needs to be flushed into a patient body by using a tube sealing liquid, otherwise, blood or the liquid medicine is easy to pool in a pipeline of the indwelling needle or the PICC, and the indwelling needle or the PICC is blocked. In order to be able to flush thoroughly, the nurse is required in practice to pulse the syringe during the tube sealing operation. However, such an operation is difficult for nurses, and particularly for nurses with inexperienced experience, it is difficult to grasp the method of pushing the syringe, and it is not necessarily required to achieve the tube sealing.
Disclosure of Invention
In view of the above, the present invention aims to provide a pushing device for operating a syringe containing a lock liquid, by which a user can push the syringe at a constant speed just as in the case of operating the syringe normally, thereby achieving the effect that the lock liquid is pushed out of the syringe in a pulse manner.
The invention relates to a pushing device for a tube sealing liquid injector, which comprises: a bed body and a sliding block;
the bed body is formed into a long shape, and a first guide groove is formed on the upper side of the bed body along the length direction of the bed body; the first end of the bed body extends upwards to form a baffle wall, and a through hole is formed in the baffle wall and is used for penetrating through a nipple of the injector; a rack is also formed on the upper side of the bed body, and is parallel to the first guide groove;
the sliding block comprises a first supporting wall, a first protruding block is formed at the lower end of the first supporting wall, the first protruding block is slidably clamped in the first guide groove and cannot be separated from the upper opening of the first groove; a shaft is formed through the upper end of the first supporting wall; the shaft is fixedly provided with a gear and a brake wheel, and the gear and the brake wheel are respectively positioned at two sides of the first supporting wall; the gear is meshed with the rack; the actuating wheel is used for pushing the pushing hand of the injector through the curved surface of the actuating wheel;
the actuating wheel is a cam or an eccentric wheel.
Preferably, the underside of the bed body is further formed with a handle.
Preferably, the bed body further comprises a second guide groove;
the slider further includes a second support wall;
the convex block at the lower end of the second supporting wall is clamped in the second guide groove and cannot be separated from the upper opening of the second groove;
the shaft is further inserted into the upper end of the second support wall.
Preferably, the gear is located on a first side of the first support wall and the actuator wheel is located on a second side of the first and second support walls.
Preferably, the gear is located on a first side of the first support wall, and the actuator wheel is located on a second side of the first support wall and between the first and second support walls.
Preferably, the first and second support walls are fixedly connected together.
Preferably, the first and second support walls are fixedly connected together by a handle.
Preferably, the cross section of the first groove is an isosceles trapezoid with a narrow upper part and a wide lower part.
Preferably, the injection is passed through said through hole, the outwardly projecting edge of the barrel of the syringe abutting against the inside of the retaining wall.
Preferably, a roller or a ball is arranged on the end face of the pushing hand of the injector.
By the pushing device, when the tube sealing liquid is pushed, the tube sealing liquid is pushed only at a constant speed like the common liquid, the constant-speed rotating gear drives the cam or the eccentric wheel connected with the gear to rotate, and the cam or the eccentric wheel rotates to periodically pulse the pushing hand of the injector, so that the effect of pulse tube sealing is achieved.
Drawings
FIG. 1 is a front view of a lock fluid syringe pusher of the present invention after loading the syringe;
FIG. 2 is a rear elevational view of the catheter lock injector push device of the present invention after loading the injector;
FIG. 3 is a schematic diagram showing a front view of a pushing device of a lock fluid injector according to the present invention;
FIG. 4 is a schematic top view of a pushing device for a lock fluid injector according to the present invention;
FIG. 5 is a schematic side view of a catheter lock injector pusher of the present invention;
FIG. 6 is a schematic side view of the bed of the lock injector pushing device of the present invention;
FIG. 7 is a schematic top view of the bed of the lock fluid injector push device of the present invention;
FIG. 8 is a schematic view of the right side structure of the bed of the lock fluid injector push device of the present invention;
FIG. 9 is a schematic view of the left side structure of the bed of the lock fluid injector push device of the present invention;
FIG. 10 is a right side schematic view of a slider of the lock liquid syringe pushing device of the present invention;
FIG. 11 is a schematic diagram showing a front view of a slider of the pushing device of the lock liquid syringe of the present invention;
FIG. 12 is a schematic bottom view of a slider of a lock fluid injector push device of the present invention;
fig. 13 shows an embodiment of a catheter lock syringe in which rollers or balls are provided on the end face of a pusher.
Detailed Description
Next, the catheter lock liquid syringe pushing device according to the present invention will be described in detail with reference to the accompanying drawings.
In the invention, the pulse type refers to the time with a certain change. The pulse type flushing pipe refers to a pipeline for flushing the PICC or the indwelling needle alternately in flushing liquid size.
The principle of the invention is that the pushing hand of the injector is pushed by the cam or the eccentric wheel rotating at a constant speed, so that the pushing implemented on the injector is the pulse pushing which changes periodically.
The pushing device of the invention comprises a bed body 10 and a sliding block 30, wherein a tube sealing liquid injector 20 is placed on the bed body 10, and the sliding block 30 is used for pushing a pushing hand of the tube sealing liquid injector 20, as shown in fig. 1 and 2.
The bed 10 includes guide slots 14a, 14b; there may be at least one guide groove, two of which are shown in the drawings, and the sliding of the slider 30 is smoother at both guide grooves. Of course, in the case of 2 or more channels, the channels are parallel to each other.
The upper side of the bed body 10 also comprises a rack 13 parallel to the guide groove. The first end of the bed body further comprises a baffle wall 12, and a through hole 15 is formed in the baffle wall 12. The through hole 15 may be formed to allow only the nipple of the lock fluid syringe 20 to pass therethrough, or may be formed to be large to allow the cylinder of the lock fluid syringe to pass therethrough with the outwardly projecting edge of the cylinder abutting against the inside of the blocking wall 12, as shown in fig. 1 and 2.
The underside of the bed 10 may also include a handle to facilitate gripping of the bed 10.
The slider 30 is mainly composed of support walls 31a, 31b, a gear 35, and an actuator wheel 34. The actuator wheel 34 may be a cam or eccentric, an elliptical cam being shown, but embodiments of the actuator wheel of the present invention are not limited thereto.
The number of the supporting walls corresponds to the number of the guide grooves. The lower end of the support wall is formed with a projection 33, the cross section of the projection 33 corresponding to the cross section of the guide grooves 14a, 14 b. In the drawing, the cross section of the lug is an isosceles trapezoid with a narrow upper part and a wide lower part, and other embodiments, such as a circular segment shape, a rectangle, a pentagon and the like, can be realized, so long as the lug can slide when inserted into the guide groove and can not be pulled out from the upper opening of the guide groove.
In the case of multiple support walls, the multiple support walls may be secured together, such as by a handle 32 as shown in the drawings, to facilitate cooperative movement of the multiple support walls in the multiple channels.
The upper end of the support wall is rotatably provided with a shaft to which a gear 35 and an actuator wheel 34 are fixedly connected. In the case of one support wall, it may be that the gear 35 is located on one side of the support wall and the actuator wheel 34 is located on the other side.
In the case of 2 support walls, it may be that the gear 35 and the actuator wheel 34 are located on both sides of the two support walls, respectively. As shown in fig. 4, the actuating wheel 34 may be located between the two supporting walls 31a and 31b, so that two sides of the actuating wheel are protected by the supporting walls, and the actuating wheel can be prevented from being accidentally rubbed with other objects, such as a transfusion tube, clothes, a bed sheet, and the like.
In order to reduce friction between the end face of the lock fluid injector push handle and the curved surface of the headblock 34, the surface of the headblock may be designed to be smooth and to have a small contact surface with the end face of the push handle. Or, the end face of the pushing handle can be provided with a plurality of rollers or balls, so that the rollers or balls can be contacted with the rollers or balls when different positions of the curved surface are contacted with the pushing handle, friction is converted into rolling friction, and therefore friction force is small.
When the tube sealing liquid injector is used, the tube sealing liquid injector is clamped between the blocking wall and the actuating wheel, and the curved surface of the actuating wheel outputs periodically changed pushing force by pushing the sliding block at a constant speed, so that the tube sealing liquid is also output from the injector in a pulse mode.

Claims (8)

1. A catheter lock injector pusher comprising: a bed body and a sliding block;
the bed body is formed into a long shape, and a first guide groove is formed on the upper side of the bed body along the length direction of the bed body; the first end of the bed body extends upwards to form a baffle wall, and a through hole is formed in the baffle wall and is used for penetrating through a nipple of the injector; a rack is also formed on the upper side of the bed body, and is parallel to the first guide groove;
the sliding block comprises a first supporting wall, a first protruding block is formed at the lower end of the first supporting wall, the first protruding block is slidably clamped in the first guide groove and cannot be separated from the upper opening of the first groove; a shaft is formed through the upper end of the first supporting wall; the shaft is fixedly provided with a gear and a brake wheel, and the gear and the brake wheel are respectively positioned at two sides of the first supporting wall; the gear is meshed with the rack; the actuating wheel is used for pushing the pushing hand of the injector through the curved surface of the actuating wheel;
the actuating wheel is a cam or an eccentric wheel;
a handle is further formed on the lower side of the bed body;
the bed body further comprises a second guide groove;
the slider further includes a second support wall;
the convex block at the lower end of the second supporting wall is clamped in the second guide groove and cannot be separated from the upper opening of the second groove;
the shaft is further inserted into the upper end of the second support wall.
2. The lock fluid injector push apparatus of claim 1, wherein:
the gear is located on a first side of the first support wall and the actuator wheel is located on a second side of the first and second support walls.
3. The lock fluid injector push apparatus of claim 1, wherein:
the gear is located on a first side of the first support wall, and the actuator wheel is located on a second side of the first support wall and between the first support wall and the second support wall.
4. The lock fluid injector push apparatus of claim 1, wherein:
the first and second support walls are fixedly connected together.
5. The lock fluid injector push apparatus of claim 4, wherein:
the first support wall and the second support wall are fixedly connected together by a handle.
6. The lock fluid injector push apparatus of claim 1, wherein:
the cross section of the first groove is an isosceles trapezoid with a narrow upper part and a wide lower part.
7. The lock fluid injector push apparatus of claim 1, wherein:
the injection is passed through the through hole and the outwardly projecting edge of the barrel of the syringe abuts against the inside of the retaining wall.
8. The lock fluid injector push apparatus of claim 1, wherein:
the end face of the pushing hand of the injector is provided with a roller or a ball.
CN201810012364.XA 2018-01-05 2018-01-05 Push device for tube sealing liquid injector Active CN107929868B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
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CN108578835B (en) * 2018-05-03 2020-09-01 无锡市人民医院 Blood vessel embeds pipe thrombus and blocks up mediation nursing device that dissolves
CN110269972B (en) * 2019-07-09 2021-07-20 合肥市第二人民医院 PICC pulse type flushing and sealing pipe device and using method thereof
CN110220752A (en) * 2019-07-11 2019-09-10 中国人民解放军总医院 Loose stools sample capturing apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87106992A (en) * 1987-10-16 1988-05-18 董卫 Automatic cleaning machine of clinical syringe needles
JP3129186U (en) * 2006-11-24 2007-02-08 昆山和興醫療科技有限公司 Safety automatic disposal blood sampler
CN104362816A (en) * 2014-10-16 2015-02-18 中国科学院上海技术物理研究所 Manual self-arranging winding machine for manufacturing linear compressor motor coils and manufacturing method
CN105251079A (en) * 2015-07-31 2016-01-20 河南曙光健士医疗器械集团股份有限公司 Anti-thrombosis remaining needle device
CN105662531A (en) * 2015-12-30 2016-06-15 中国人民解放军第二军医大学 Pulse transfusion micropump
CN206548966U (en) * 2016-11-18 2017-10-13 中国人民解放军总医院 Rush formula tube sealing syringe in advance
CN107252513A (en) * 2012-04-30 2017-10-17 康赛莫德公司 Fluid transfer device
CN107413484A (en) * 2017-09-05 2017-12-01 宁波新材料科技城犀鸟工业设计有限公司 A kind of medical waste efficient pulverizing disinfection unit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2049482C1 (en) * 1992-07-21 1995-12-10 Ростовский научно-исследовательский онкологический институт Device for lavaging fallopian tube channels
US6746419B1 (en) * 1993-04-19 2004-06-08 Stryker Corporation Irrigation handpiece with built in pulsing pump
JP4243378B2 (en) * 1999-02-19 2009-03-25 株式会社朝日ラバー Plug body, vacuum blood collection tube using the plug body, and method of manufacturing the plug body
CN2366119Y (en) * 1999-04-28 2000-03-01 杨忠 Electrically driven infusion device
US20030100125A1 (en) * 2001-10-19 2003-05-29 Monogen, Inc. Flow control metering system and method for controlling filtration of liquid-based specimens
CN2671518Y (en) * 2004-01-02 2005-01-19 江积清 Novel pulse operation rinsing and sucking device
CN202185013U (en) * 2011-08-05 2012-04-11 天津市百利康泰生物技术有限公司 Anti-coagulation sealing tube suite
CN208591394U (en) * 2018-01-05 2019-03-12 中国人民解放军总医院 Tube sealing liquid syringe driving means

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87106992A (en) * 1987-10-16 1988-05-18 董卫 Automatic cleaning machine of clinical syringe needles
JP3129186U (en) * 2006-11-24 2007-02-08 昆山和興醫療科技有限公司 Safety automatic disposal blood sampler
CN107252513A (en) * 2012-04-30 2017-10-17 康赛莫德公司 Fluid transfer device
CN104362816A (en) * 2014-10-16 2015-02-18 中国科学院上海技术物理研究所 Manual self-arranging winding machine for manufacturing linear compressor motor coils and manufacturing method
CN105251079A (en) * 2015-07-31 2016-01-20 河南曙光健士医疗器械集团股份有限公司 Anti-thrombosis remaining needle device
CN105662531A (en) * 2015-12-30 2016-06-15 中国人民解放军第二军医大学 Pulse transfusion micropump
CN206548966U (en) * 2016-11-18 2017-10-13 中国人民解放军总医院 Rush formula tube sealing syringe in advance
CN107413484A (en) * 2017-09-05 2017-12-01 宁波新材料科技城犀鸟工业设计有限公司 A kind of medical waste efficient pulverizing disinfection unit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Liu Shu-Lin.Improvement of cigarette separating & conveying device in PROTOS 70.《Tobacco Science &amp Technology》.2008,第26-27页. *
一款人性化输液器的研制;陆国忠;《医疗卫生装备》;第1-2页 *

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