CN111407964A - Liquid stopping device and infusion pump - Google Patents
Liquid stopping device and infusion pump Download PDFInfo
- Publication number
- CN111407964A CN111407964A CN202010167258.6A CN202010167258A CN111407964A CN 111407964 A CN111407964 A CN 111407964A CN 202010167258 A CN202010167258 A CN 202010167258A CN 111407964 A CN111407964 A CN 111407964A
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- CN
- China
- Prior art keywords
- liquid stopping
- liquid
- supporting rod
- base
- guide rail
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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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
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
Abstract
The invention discloses a liquid stopping device, which comprises a liquid stopping slide block, a fixed platform, an elastic element, a first support rod and a base, wherein the liquid stopping slide block is arranged on the base in a sliding manner along a first direction, the liquid stopping slide block comprises a first side and a second side which are oppositely arranged in the first direction, a guide rail is arranged on the liquid stopping slide block, two ends of the elastic element are respectively connected with the base and the first side, one end of the first support rod is rotatably connected with the base, the other end of the first support rod is slidably connected with the guide rail, when the first support rod rotates, the other end of the first support rod slides along the guide rail to drive the liquid stopping slide block to move in the first direction, when the first support rod rotates to be parallel to the first direction, the liquid stopping slide block and the fixed platform are arranged at intervals in the first direction to form a channel for a liquid infusion tube to pass through, an operator can place the liquid stopping slide block in the, the channel is closed, and the purpose of stopping liquid is achieved. The device has the advantages of reasonable design, simple structure, convenient maintenance and lower cost.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a liquid stopping device and an infusion pump.
Background
At present, the clinical medicine field breaks through the traditional manual infusion mode, and the automatic infusion is realized by using an automatic infusion device taking an infusion pump as a main body. In general, a liquid stopping device is required to be arranged in the infusion pump to realize the function of stopping the liquid flowing in the infusion tube under specific conditions. Various liquid stopping devices exist in the market, and although the liquid stopping devices have a liquid stopping function, the problems of complex structure, high manufacturing cost, difficulty in maintenance and installation and the like generally exist.
Disclosure of Invention
The application provides a simple structure, easy maintenance and lower liquid stopping device of cost and transfer pump to the technical problem that exists more than.
On one hand, the technical scheme provided by the embodiment of the application is as follows: a liquid stopping device comprises a liquid stopping slider, a fixed platform, an elastic element, a first supporting rod and a base, wherein the liquid stopping slider is arranged on the base in a sliding mode along a first direction and comprises a first side and a second side which are arranged in the first direction oppositely, a guide rail is arranged on the liquid stopping slider, two ends of the elastic element are connected to the base and the first side respectively, one end of the first supporting rod is connected to the base in a rotating mode, the other end of the first supporting rod is connected to the guide rail in a sliding mode, when the first supporting rod rotates relative to the base, the other end of the first supporting rod slides along the guide rail to drive the liquid stopping slider to move in the first direction, when the first supporting rod rotates to be parallel to the first direction, the liquid stopping slider and the fixed platform are arranged in the first direction at intervals, to form a channel through which the fluid line passes.
Preferably, the liquid stopping device further comprises a second supporting rod, and the second supporting rod is connected to one end of the first supporting rod and used for driving the first supporting rod to rotate.
Preferably, an included angle is formed between the second supporting rod and the first supporting rod.
Preferably, the liquid stopping device further comprises a pump door, the pump door is rotatably connected with the base through a fixed shaft, and the pump door is provided with a contact end which is in contact with the second supporting rod and the liquid stopping sliding block.
Preferably, the contact end includes a first contact end and a second contact end, and when the pump door rotates to the closed position, the first contact end contacts with the first support rod or the second support rod, so that the first support rod leaves a position parallel to the first direction; the second contact end is used for being abutted against the liquid stopping slide block, and when the liquid stopping slide block is abutted against the second contact end, the distance between the liquid stopping slide block and the fixed platform is smaller than the diameter of the infusion tube.
Preferably, the liquid stopping slider includes an inclined surface, and the second contact end is in contact with the inclined surface after the pump door is rotated to the closed position.
Preferably, the inclined surface is inclined in a direction away from the second contact arm in a direction in which the first side is directed to the second side.
Preferably, the guide rail is a groove formed in the liquid stopping slider, the other end of the first supporting rod is provided with a roller, and the roller is arranged in the guide rail in a rolling mode.
Preferably, the guide rail is an arc-shaped guide rail, and the arc-shaped guide rail takes the rotation center of the first support rod as a circle center.
In another aspect, the present application further provides an infusion pump, which includes the liquid stopping device as described above.
The beneficial effect of this application is: when the first supporting rod rotates relative to the base, one end of the first supporting rod slides along the guide rail to drive the liquid stopping sliding block to move in the first direction, so that the distance between the second side of the liquid stopping sliding block and the fixed platform is changed to open or close the channel. The liquid stopping device has the advantages of reasonable design, simple structure, convenient maintenance and lower cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic view of an overall structure of a liquid stopping device according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a liquid stopping device without a pump door in a natural state according to an embodiment of the present application;
FIG. 3 is a schematic view of a liquid stop device in a self-locking state according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a fluid stop device in an embodiment of the present application in a position to place an infusion tube in an infusion tube passageway;
FIG. 5 is a schematic view of a liquid stop device in an embodiment of the present application when a pump door is about to be closed;
FIG. 6 is a schematic view of the liquid stop device in an embodiment of the present application after the pump door is closed, the liquid stop device being limited in travel by the pump door;
FIG. 7 is a schematic view of the liquid stop device in an embodiment of the present application in a liquid stop state after the pump door is opened;
description of reference numerals: the liquid stopping device 100, the liquid stopping slider 110, the fixed platform 120, the elastic element 130, the first support rod 140, the base 150, the guide rail 142, the second support rod 141, the handle 1411, the roller 1412, the first rotating shaft 143, the channel 160, the inclined surface 111, the pump door 170, the fixed shaft 180, the first contact end 171, the second contact end 172, the first contact point 173, and the second contact point 174.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows an embodiment of a liquid stopping device 100, which includes a liquid stopping slider 110, a fixed platform 120, an elastic element 130, a first supporting rod 140 and a base 150.
The liquid stopping slider 110 is in a cube shape, the liquid stopping slider 110 is slidably disposed on the base 150 along a first direction, the base 150 is provided with a sliding channel, the sliding channel extends along the first direction, and the width of the sliding channel is matched with the width of the liquid stopping slider 110. The liquid stop block 110 includes a first side and a second side disposed opposite in a first direction. One end of the elastic member 130 is connected to the base 150, and the other end of the elastic member 130 is connected to the first side of the liquid stopping slider 110. One end of the first rod 140 is disposed on the base 150 through the first rotating shaft 143, the liquid-stopping block 110 is disposed with a guide rail 142, the first rod 140 can rotate around the first rotating shaft 143, and the other end of the first rod 140 can slide along the guide rail 142 when rotating, so as to drive the liquid-stopping block 110 to move along the first direction. When the first rod 140 is rotated to be parallel to the first direction, the liquid stop block 110 is positioned, the liquid stop block 110 and the fixed platform 120 are arranged at intervals in the first direction to form a channel 160 for a liquid conveying pipe to pass through, and an operator can place the liquid conveying pipe in the channel 160.
As shown in fig. 2, when the liquid stopping device 100 is in the natural state or the unlocked state, i.e. no force is applied to the first supporting rod 140, the elastic element 130 applies an upward elastic force to the liquid stopping slider 110, so that the second side surface of the liquid stopping slider 110 contacts with the fixed platform 120, the channel 160 is in the closed state, and the infusion tube is in the liquid stopping state.
When the liquid stopping device 100 rotates relative to the base through the first supporting rod, one end of the first supporting rod slides along the guide rail to drive the liquid stopping slide block to move in the first direction, so that the distance between the second side of the liquid stopping slide block and the fixed platform is changed to realize opening or closing of the channel. The liquid stopping device has the advantages of reasonable design, simple structure, convenient maintenance and lower cost.
In one embodiment, the fixed platform 120 is disposed on the base 150, and the fixed platform 120 may also be disposed in the housing of the liquid stopping device 100. The second side surface of the liquid-stopping block 110 is kept horizontal with the surface of the fixed platform 120, and a channel 160 for placing the infusion tube can be formed between the second side surface of the liquid-stopping block 110 and the fixed platform 120. In another embodiment, the second side surface of the liquid-stopping block 110 and the surface of the fixed platform 120 may also be configured with a non-smooth concave-convex structure to increase friction force, so that the liquid-stopping effect is better when the two are clamped. The diameter of the channel 160 is slightly larger than the outer diameter of the infusion tube.
Of course, the elastic element 130 may be a spring, a torsion spring or other objects capable of releasing the elastic force, and the number of the elastic elements 130 may also be plural.
Referring to fig. 1-2, in one embodiment, the first rod 140 is rotatably disposed on the base 150 through a first rotating shaft 143, the guide rail 142 is disposed on a side surface of the liquid-stopping slider 110, and when the first rod 140 rotates, one end of the first rod 140 moves along the guide rail 142 and applies a force to the guide rail 142, so as to drive the liquid-stopping slider 110 to slide. When the first supporting rod 140 rotates to be parallel to the first direction, the first supporting rod 140 does not rotate any more, and the liquid stop slider 110 is positioned, thereby realizing the self-locking function.
In another embodiment, the liquid stopping device 100 further comprises a second rod 141, and the second rod 141 is connected to one end of the first rod 140 for driving the first rod 140 to rotate. The second rod 141 and the first rod 140 form an included angle, and in one embodiment, the included angle between the second rod 141 and the first rod 140 is 90 °. One end of the first rod 140, which is far away from the second rod 141, moves along the guide rail 142, and when the first rod 140 rotates to be parallel to the first direction, the liquid stopping device 100 is in a self-locking state, the liquid stopping slider 110 is positioned, the channel 160 is opened, and an operator can place the infusion tube in the channel.
In other embodiments, the included angle between the first supporting rod 140 and the second supporting rod 141 can be adjusted to different angles according to the installation position and the force.
In another embodiment, the first rod 140 is provided with a roller 1412 at an end away from the second rod 141, the roller 1412 is rotatably disposed in the guide rail 142, and the second rod 141 further includes a handle 1411 at an end away from the first rod 140. When the handle 1411 is pressed, the first rod 140 rotates about the first rotating shaft 143, so that the roller 1412 on the first rod 140 reciprocates along the guide 142.
In one embodiment, the guide rail 142 is a groove opened on the liquid stop block 110, and the guide rail 142 is an arc-shaped guide rail, and the arc-shaped guide rail 142 is centered around the rotation center of the first rod 140. The roller 1412 of the first support rod 140 can freely slide on the guide rail 142, and the structure enables the operation to be more labor-saving and stable through the cooperation of the roller 1412 and the guide rail 142, and the occupied space is small.
Referring to fig. 2, when the liquid stopping device 100 is in a natural state or an unlocked state, that is, when no force is applied to the first supporting rod 140, the first supporting rod 140 is away from a position parallel to the first direction, at this time, the elastic element 130 applies an upward elastic force to the liquid stopping slider 110, so that the second side of the liquid stopping slider 110 contacts the fixed platform 120, the channel 160 is in a closed state, and at this time, the infusion tube is in a liquid stopping state.
Referring to fig. 3, when the operator pulls the handle 1411 downwards, the first rod 140 rotates around the first rotating shaft 143, the roller 1412 on the first rod 140 moves towards the side of the guide rail 142 close to the center of the slide block, the roller 1412 applies a downward force to the guide rail 142, so that the liquid stop slide block 110 slides downwards, when the first rod 140 is parallel to the first direction, the liquid stop device 100 is in a self-locking state, at this time, the distance between the second side surface of the liquid stop slide block 110 and the fixed platform 120 is locked, and the operator can place the infusion tube into the infusion tube channel 160, as shown in fig. 4.
In one embodiment as shown in fig. 5-6, the liquid stopping device 100 of the infusion pump is provided with a pump door 170, the pump door 170 is rotatably connected with the base 150 through a fixed shaft 180, and the pump door 170 is provided with a contact end which is in contact with the second supporting rod 141 and the liquid stopping slider 110. The contact ends include a first contact end 171 and a second contact end 172, when the pump door 170 rotates to the closed position, the first contact end 171 of the pump door 170 contacts the second support rod 141 to form a first contact point 173, of course, the first contact end 171 of the pump door 170 can also contact the first support rod 140, so that the first support rod 140 is away from the position parallel to the first direction, at this time, the liquid stopping device 100 releases the self-locking state, the second contact end 172 of the pump door 170 is used for abutting against the liquid stopping slider 110, and when the liquid stopping slider 110 abuts against the second contact end 172, the distance between the liquid stopping slider 110 and the fixed platform 120 is smaller than the diameter of the infusion tube, at this time, the infusion tube in the channel 160 is not completely clamped, and is in a half-open and half-closed state, the infusion tube can flow liquid, and in this process is that after the pump door 170 is closed, the liquid stopping slider 110 is limited in stroke, and the.
In another embodiment, the liquid stop slider 110 includes an inclined surface 111, and after the pump door 170 is rotated to the closed position, the second contact end 172 contacts the inclined surface 111 to form the second contact point 174, and the inclined surface 111 is inclined in a direction away from the second contact arm in a direction in which the first side is directed to the second side.
Of course, the inclined surface 111 can be adjusted to different angles to meet the requirements of controlling different infusion speeds. The inclined plane 111 can be arranged on the matched side surface of the liquid stopping slider 110 and the pump door 170 in a protruding mode, and the inclined plane 111 can be detached, replaced and adjusted in angle, so that maintenance is facilitated. Of course, the inclined surface 111 can be integrally formed with the liquid stopping slider 110, thereby saving cost.
Referring to fig. 7, after the infusion pump finishes working, the pump door 170 is opened, the pump door 170 rotates around the fixed shaft 180 to an open position, the second contact point 174 of the second contact end 172 of the pump door 170, which is in contact with the inclined surface 111 of the liquid stop slider 110, continuously moves to the right, and the liquid stop slider 110 slides upwards under the action of the elastic element 130. When the pump door 170 is not in contact with the liquid stopping slider 110 any more, the pump door 170 completes the opening action, the liquid stopping slider 110 slides to the fixed platform 120 to clamp the infusion tube, and the purposes of stopping liquid when the pump door 170 is opened and preventing liquid from flowing reversely are achieved.
After the infusion tube is clamped, if the infusion pump is required to be used continuously subsequently, the pump door 170 is closed, the second contact end 172 of the pump door 170 contacts with the inclined surface 111 of the liquid stopping slider 110 first, so that the liquid stopping slider 110 moves downwards, when the pump door 170 is completely closed, the liquid stopping slider 110 is limited in stroke and does not move downwards any more, at the moment, the infusion tube in the infusion tube channel 160 is in a half-open and half-closed working state, and liquid in the infusion tube can flow freely. The process realizes that the pump door 170 is closed, the infusion tube passage 160 is opened to the stroke limiting position, and the infusion tube returns to the working state of half-open and half-closed.
In the above embodiment, when the first supporting rod rotates relative to the base, one end of the first supporting rod slides along the guide rail to drive the liquid stopping slider to move in the first direction, so that the distance between the second side of the liquid stopping slider and the fixed platform is changed to open or close the channel. The liquid stopping device has the advantages of reasonable design, simple structure, convenient maintenance and lower cost.
The present invention further provides an infusion pump, which includes the liquid stopping device 100, and the specific structure of the liquid stopping device 100 refers to the above embodiments, and since the infusion pump adopts all the technical solutions of all the above embodiments, the infusion pump at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. A liquid stop device, comprising: the liquid stopping sliding block is arranged on the base in a sliding mode along a first direction and comprises a first side and a second side which are oppositely arranged in the first direction, and a guide rail is arranged on the liquid stopping sliding block;
two ends of the elastic element are respectively connected to the base and the first side; one end of the first supporting rod is rotatably connected to the base, the other end of the first supporting rod is slidably connected to the guide rail, and when the first supporting rod rotates relative to the base, the other end of the first supporting rod slides along the guide rail to drive the liquid stopping sliding block to move in the first direction; when the first supporting rod rotates to be parallel to the first direction, the liquid stopping sliding block and the fixed platform are arranged at intervals in the first direction to form a channel through which a liquid conveying pipe penetrates.
2. The fluid stop device of claim 1, further comprising a second strut coupled to an end of the first strut for rotating the first strut.
3. The fluid stop device of claim 2, wherein said second leg is angled relative to said first leg.
4. The fluid stop device of claim 2, further comprising a pump door rotatably coupled to said base by a fixed shaft, said pump door having a contact end for contacting said second support bar and said fluid stop slider.
5. The fluid stop device of claim 4, wherein said contact end comprises a first contact end and a second contact end, said first contact end contacting said first leg or said second leg when said door is rotated to a closed position to move said first leg away from a position parallel to said first direction; the second contact end is used for being abutted against the liquid stopping slide block, and when the liquid stopping slide block is abutted against the second contact end, the distance between the liquid stopping slide block and the fixed platform is smaller than the diameter of the infusion tube.
6. The liquid stopping device of claim 5, wherein said liquid stopping slider includes an inclined surface, and said second contact end contacts said inclined surface after said pump door is rotated to said closed position.
7. The fluid stop device of claim 6, wherein said inclined surface is inclined away from said second contact arm in a direction from said first side to said second side.
8. The liquid stopping device as claimed in claim 1, wherein the guiding track is a groove opened on the liquid stopping slider, and the other end of the first supporting rod is provided with a roller which is arranged in the guiding track in a rolling manner.
9. The fluid stop device of claim 1, wherein the guide is an arcuate guide centered about the center of rotation of the first strut.
10. An infusion pump comprising a fluid stop device as claimed in any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167258.6A CN111407964A (en) | 2020-03-11 | 2020-03-11 | Liquid stopping device and infusion pump |
| PCT/CN2020/095140 WO2021179456A1 (en) | 2020-03-11 | 2020-06-09 | Liquid-stopping apparatus and infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167258.6A CN111407964A (en) | 2020-03-11 | 2020-03-11 | Liquid stopping device and infusion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111407964A true CN111407964A (en) | 2020-07-14 |
Family
ID=71485034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010167258.6A Pending CN111407964A (en) | 2020-03-11 | 2020-03-11 | Liquid stopping device and infusion pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111407964A (en) |
| WO (1) | WO2021179456A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT1616588E (en) * | 2004-07-17 | 2006-06-30 | Codan Holding Gmbh | DEVICE FOR COUPLING AN INTRAVENOUS TUBE WITH AN INFUSION PUMP |
| CN102940915A (en) * | 2012-10-30 | 2013-02-27 | 深圳玉升医疗科技有限公司 | Infusion pump capable of electrically controlling opening and closing of pump door and liquid stop clip |
| CN204319426U (en) * | 2014-12-08 | 2015-05-13 | 深圳市科曼医疗设备有限公司 | A kind of infusion pump stops liquid device |
| CN208741658U (en) * | 2018-04-12 | 2019-04-16 | 浙江史密斯医学仪器有限公司 | Novel infusion pump Zhi Ye mechanism |
| CN110152110A (en) * | 2019-06-13 | 2019-08-23 | 深圳市好克医疗仪器股份有限公司 | Only liquid device and infusion pump |
-
2020
- 2020-03-11 CN CN202010167258.6A patent/CN111407964A/en active Pending
- 2020-06-09 WO PCT/CN2020/095140 patent/WO2021179456A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021179456A1 (en) | 2021-09-16 |
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