CN113893410A - Peristaltic device and infusion pump - Google Patents
Peristaltic device and infusion pump Download PDFInfo
- Publication number
- CN113893410A CN113893410A CN202111153386.6A CN202111153386A CN113893410A CN 113893410 A CN113893410 A CN 113893410A CN 202111153386 A CN202111153386 A CN 202111153386A CN 113893410 A CN113893410 A CN 113893410A
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- mounting seat
- pump
- rotating shaft
- output opening
- extrusion
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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
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
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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 application discloses wriggling device and transfer pump, this wriggling device include mount pad, a plurality of pump piece, axis of rotation, a plurality of eccentric wheels, drive assembly and adjusting part, and the mount pad has the output opening, and the pump piece activity sets up in the mount pad, and the pump piece has the extrusion side, and the extrusion side can stretch out the output opening motion in order to extrude the transfer line with the extrusion of relieving in the retraction output opening to the transfer line. The rotating shaft is rotatably arranged in the mounting seat, the eccentric wheel is sleeved on the rotating shaft, the eccentric wheel and the pump pieces are respectively in one-to-one corresponding contact, and the driving assembly is respectively connected with the mounting seat and the rotating shaft. The first end of the adjusting component is tightly abutted against the mounting seat, and the adjusting component is used for driving the mounting seat to move towards the infusion tube. When changing the transfer line that the pipe diameter size is different, move towards the transfer line through adjusting part drive mount pad to the messenger stretches out output open-ended extrusion side and can extrude the transfer line to predetermineeing the extrusion state, has improved the commonality of transfer pump to the transfer line of different pipe diameter sizes.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a peristaltic device and an infusion pump.
Background
Infusion pumps are commonly used to control and adjust infusion parameters, such as infusion speed, volume, etc. The infusion pump works on the principle that an infusion tube is sequentially extruded by a plurality of pump pieces so as to enable liquid in the infusion tube to flow. However, the existing infusion pump has poor universality for infusion tubes with different tube diameter sizes, and needs to be improved.
Disclosure of Invention
The invention mainly solves the technical problems that: the existing infusion pump has poor universality on infusion tubes with different tube diameter sizes.
In a first aspect, in one embodiment there is provided a peristaltic device comprising:
a mount having an output opening;
the pump pieces are movably arranged in the mounting seat and are provided with extrusion sides, and the extrusion sides can extend out of the output opening to move so as to extrude the infusion tube and retract into the output opening so as to relieve the extrusion of the infusion tube;
the rotating shaft is rotatably arranged in the mounting seat;
the eccentric wheels are sleeved on the rotating shaft and are in one-to-one corresponding contact with the pump pieces respectively; when the rotating shaft rotates, the eccentric wheel on the rotating shaft can be driven to rotate, and the eccentric wheel drives the extrusion side of the corresponding pump piece to periodically extend out of and retract into the output opening;
the driving assembly is respectively connected with the mounting seat and the rotating shaft and is used for driving the rotating shaft to rotate; and
the first end of the adjusting component is abutted against the mounting seat, and the adjusting component is used for driving the mounting seat to move towards the infusion tube so that the extrusion side extending out of the output opening can extrude the infusion tube to a preset extrusion state.
In one embodiment, the adjusting assembly includes an elastic member, a first end of the elastic member abuts against the mounting seat, and the elastic member is configured to drive the mounting seat to move toward the infusion tube, so that the extrusion side extending out of the output opening can extrude the infusion tube to a preset extrusion state.
In one embodiment, the adjusting assembly further comprises an adjusting seat, the first end of the elastic member is connected with the adjusting seat, and the second end of the elastic member abuts against the mounting seat.
In one embodiment, the device further comprises a guide assembly, the guide assembly is connected with the adjusting base and movably connected with the mounting base, and the guide assembly is used for guiding the mounting base to move along a preset direction.
In one embodiment, the guide assembly comprises a guide rod, the first end of the guide rod is connected with the adjusting seat, a connecting piece is arranged on the mounting seat, and the connecting piece is movably sleeved with the guide rod.
In one embodiment, the outer wall of the mounting seat is provided with a protruding portion, one side of the protruding portion facing the elastic member is provided with a limiting groove, and the elastic member is arranged in the limiting groove near the first end of the mounting seat.
In one embodiment, the inner wall of the mounting seat is provided with a guide groove, and the side part of the pump piece close to the guide groove is embedded into the guide groove.
In one embodiment, the first side of the eccentric wheel is provided with a connecting protrusion and the second side of the eccentric wheel is provided with a connecting groove, the connecting protrusion is used for being clamped with the connecting groove of the adjacent eccentric wheel, and the connecting groove is used for being clamped with the connecting protrusion of the adjacent eccentric wheel.
In one embodiment, the device further comprises a rotating speed detection mechanism, wherein the rotating speed detection mechanism comprises a rotating speed code disc and a speed sensor, the rotating speed code disc is connected with the rotating shaft, and the speed sensor is arranged on one side close to the rotating code disc.
In a second aspect, an embodiment provides an infusion pump, including a body, a carrier, and a peristaltic device as described in any one of the above, the peristaltic device and the carrier being disposed within the body, the carrier being configured to carry an infusion tube, an output opening of the peristaltic device facing the carrier.
According to the peristaltic device and the infusion pump of the above embodiment, the peristaltic device comprises a mounting seat, a plurality of pump pieces, a rotating shaft, a plurality of eccentric wheels, a driving assembly and an adjusting assembly, wherein the mounting seat is provided with an output opening, the pump pieces are movably arranged in the mounting seat, the pump pieces are provided with extrusion sides, and the extrusion sides can extend out of the output opening to move so as to extrude an infusion tube and retract into the output opening so as to relieve the extrusion of the infusion tube. The rotating shaft is rotatably arranged in the mounting seat, the eccentric wheel is sleeved on the rotating shaft, and the eccentric wheel and the pump pieces are respectively in one-to-one corresponding contact. When the rotating shaft rotates, an eccentric wheel on the rotating shaft can be driven to rotate, and the eccentric wheel drives the extrusion side of the corresponding pump piece to periodically extend out of and retract into the output opening. The driving assembly is connected with the mounting seat and the rotating shaft respectively and is used for driving the rotating shaft to rotate. The first end of the adjusting component is tightly abutted to the mounting seat, and the adjusting component is used for driving the mounting seat to move towards the infusion tube, so that the extrusion side extending out of the output opening can extrude the infusion tube to a preset extrusion state. Due to the fact that the adjusting assembly is added, when infusion tubes with different tube diameter sizes are replaced, the adjusting assembly drives the mounting seat to move towards the infusion tubes, so that the extrusion side extending out of the output opening can extrude the infusion tubes to a preset extrusion state, and universality of the infusion pump on the infusion tubes with different tube diameter sizes is improved.
Drawings
FIG. 1 is a schematic view of an infusion pump in one embodiment of the present application;
FIG. 2 is a schematic view of the peristaltic device shown in an embodiment of the present application with one side of the mounting base open;
FIG. 3 is a schematic view of the peristaltic device shown in an alternative view with one side of the mount open according to one embodiment of the present disclosure;
FIG. 4 is an exploded view of a peristaltic device with one side of the mount open in one embodiment of the present application;
FIG. 5 is an exploded view of the peristaltic device with one side of the mount open in an alternative embodiment of the present application;
FIG. 6 is a schematic view of the internal structure of a peristaltic device in one embodiment of the present application from a perspective;
FIG. 7 is an enlarged view taken at A of FIG. 6 of the present application;
FIG. 8 is a schematic view of the internal structure of a peristaltic device from another perspective in accordance with an embodiment of the present application;
FIG. 9 is an enlarged view taken at B of FIG. 8 of the present application;
FIG. 10 is an exploded view from a perspective of a peristaltic device in one embodiment of the present application;
FIG. 11 is an exploded view from another perspective of the peristaltic device in accordance with an embodiment of the present application;
reference numerals: 100. a mounting seat; 110. an output opening; 120. a boss portion; 121. a limiting groove; 130. a guide groove; 140. a connecting member; 200. a pump sheet; 210. extruding the side; 300. a rotating shaft; 400. an eccentric wheel; 410. a connecting groove; 420. a connecting projection; 500. a drive assembly; 510. a drive motor; 520. a driving gear; 530. a driven gear; 600. an adjustment assembly; 610. an elastic member; 620. an adjusting seat; 630. a guide assembly; 631. a guide bar; 700. a rotational speed detection mechanism; 710. rotating speed code disc; 720. a speed sensor; 800. a body.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
The present embodiment provides an infusion pump.
Referring to fig. 1-11, the infusion pump includes a body 800, a carrier and a peristaltic device, the peristaltic device and the carrier are disposed in the body 800, the carrier is used for carrying the infusion tube, and an output opening 110 of the peristaltic device faces the carrier.
In another aspect, the present embodiments provide a peristaltic device.
Referring to fig. 1-11, the peristaltic device includes a mounting base 100, a plurality of pump blades 200, a rotating shaft 300, a plurality of eccentric wheels 400, a driving assembly 500, and an adjustment assembly 600.
The mounting seat 100 has an output opening 110, the pump sheet 200 is movably disposed in the mounting seat 100, the pump sheet 200 has a pressing side 210, and the pressing side 210 can extend out of the output opening 110 to press the infusion tube and retract into the output opening 110 to release the pressing of the infusion tube. The rotating shaft 300 is rotatably disposed in the mounting seat 100, the eccentric 400 is sleeved on the rotating shaft 300, and the eccentric 400 and the pump blades 200 are in one-to-one contact with each other. When the rotating shaft 300 rotates, the eccentric 400 on the rotating shaft 300 can be driven to rotate, and the eccentric 400 drives the extrusion side 210 of the corresponding pump blade 200 to periodically extend out of and retract into the output opening 110. The driving assembly 500 is connected to the mounting base 100 and the rotating shaft 300, respectively, and the driving assembly 500 is used for driving the rotating shaft 300 to rotate. The first end of the adjusting component 600 abuts against the mounting seat 100, and the adjusting component 600 is used for driving the mounting seat 100 to move towards the infusion tube, so that the extrusion side 210 extending out of the output opening 110 can extrude the infusion tube to a preset extrusion state.
Due to the addition of the adjusting assembly 600, when infusion tubes with different tube diameter sizes are replaced, the adjusting assembly 600 drives the mounting seat 100 to move towards the infusion tube, so that the extrusion side 210 extending out of the output opening 110 can extrude the infusion tube to a preset extrusion state, and the universality of the infusion pump on infusion tubes with different tube diameter sizes is improved. The "preset extrusion state" of the infusion tube may be set according to actual requirements, and for example, the diameter of the inner channel of the infusion tube may reach the "preset extrusion state" when the inner channel is extruded by the extrusion side 210 for at least a half diameter distance, or the diameter of the inner channel of the infusion tube may reach the "preset extrusion state" when the inner channel is extruded by the extrusion side 210 for at least one diameter distance of four.
Referring to fig. 1-5, in one embodiment, the adjusting assembly 600 includes an elastic member 610, a first end of the elastic member 610 abuts against the mounting seat 100, and the elastic member 610 is used for driving the mounting seat 100 to move toward the infusion tube, so that the pressing side 210 extending out of the output opening 110 can press the infusion tube to maintain a predetermined pressing state.
The installation seat 100 is driven to move towards the infusion tube by the elastic force of the elastic piece 610, so that the self-adaptive adjustment of the distance between the installation seat 100 and the infusion tube is realized. Specifically, the elastic member 610 may be a spring. In this embodiment, the number of the springs is one. In other embodiments, the number and the elastic coefficient of the springs can be flexibly set according to actual requirements, for example, the number of the springs can be set to be two, three or four.
Referring to fig. 1-5, in an embodiment, the adjusting assembly 600 further includes an adjusting seat 620, a first end of the elastic element 610 is connected to the adjusting seat 620, and a second end of the elastic element 610 abuts against the mounting seat 100.
Due to the addition of the adjustment seat 620, the end of the elastic member 610 far from the mounting seat 100 is fixed. In other embodiments, the adjusting seat 620 may not be provided, for example, one end of the elastic element 610 far from the mounting seat 100 may directly abut against the machine body 800.
Referring to fig. 1-5, in an embodiment, the peristaltic device further includes a guide assembly 630, the guide assembly 630 is connected to the adjustment base 620 and movably connected to the mounting base 100, and the guide assembly 630 is used for guiding the mounting base 100 to move along a predetermined direction.
The guide assembly 630 guides the mounting base 100 to move along a predetermined direction, specifically, a direction perpendicular to the infusion tube.
Referring to fig. 1-5, in an embodiment, the guiding assembly 630 includes a guiding rod 631, a first end of the guiding rod 631 is connected to the adjusting base 620, the mounting base 100 is provided with a connecting member 140, and the connecting member 140 is movably sleeved with the guiding rod 631.
Through the cooperation of the guide rod 631 and the connector 140, the mounting base 100 is guided to move along the extending direction of the guide rod 631, and specifically, the guide rod 631 can be arranged perpendicular to the adjusting base 620, and the free end of the guide rod 631 extends towards the side where the infusion tube is located. In other embodiments, the guide bar 631 may be replaced by a rail structure.
Referring to fig. 6 and 8, in an embodiment, the outer wall of the mounting base 100 has a protrusion 120, a side of the protrusion 120 facing the elastic member 610 is provided with a limiting groove 121, and the elastic member 610 is disposed in the limiting groove 121 near the first end of the mounting base 100.
The elastic member 610 is limited by the limiting groove 121, so that the elastic member 610 is ensured to stretch only along the axial direction and is not easy to bend in the radial direction, and the driving direction of the elastic member 610 to the mounting seat 100 is kept unchanged.
Referring to fig. 1-5, in one embodiment, the inner wall of the mounting base 100 is provided with a guide groove 130, and the side of the pump blade 200 close to the guide groove 130 is inserted into the guide groove 130.
The movement of the pump blade 200 to extend and retract into and out of the output opening 110 is guided by the guide groove 130, and the pump blade 200 is also prevented from moving in the axial direction of the rotation shaft 300, specifically, the guide groove 130 extends in a direction perpendicular to the output opening 110.
Referring to fig. 6 to 9, in one embodiment, the eccentric 400 is provided with a connecting protrusion 420 at a first side and a connecting groove 410 at a second side, the connecting protrusion 420 is used for being engaged with the connecting groove 410 of the adjacent eccentric 400, and the connecting groove 410 is used for being engaged with the connecting protrusion 420 of the adjacent eccentric 400.
The adjacent eccentric wheels 400 are connected through the clamping of the connecting grooves 410 and the connecting protrusions 420, which is beneficial to improving the stability and consistency of linkage among the eccentric wheels 400.
Referring to fig. 6 to 9, in an embodiment, at least two adjacent eccentrics 400 are sequentially divided into a group, and the eccentrics 400 in the same group are fixedly connected. The two outermost eccentrics 400 in the same group are respectively provided with a connecting protrusion 420 and a connecting groove 410, the connecting protrusion 420 is used for being clamped with the connecting groove 410 on the eccentric 400 in the adjacent group, and the connecting groove 410 is used for being clamped with the connecting protrusion 420 on the eccentric 400 in the adjacent group.
By fixedly connecting the eccentric wheels 400 of the same group and clamping the eccentric wheels 400 of the adjacent group through the connecting grooves 410 and the connecting protrusions 420, the stability and consistency of linkage among the eccentric wheels 400 are further improved.
Referring to fig. 10 and 11, in one embodiment, the driving assembly 500 includes a driving motor 510, a driving gear 520, and a driven gear 530, the driving motor 510 is connected to the mounting base 100, an output shaft of the driving motor 510 is sleeved with the driving gear 520, the driven gear 530 is sleeved with the rotating shaft 300, and the driving gear 520 is engaged with the driven gear 530.
When the pump blade 200 needs to be driven to extend out of and retract into the output opening 110, the driving gear 520 is driven to rotate by the driving motor 510, the driving gear 520 drives the driven gear 530 to rotate, the driven gear 530 drives the rotating shaft 300 and the eccentric wheel 400 on the rotating shaft 300 to rotate, and the eccentric wheel 400 drives the corresponding pump blade 200 to periodically extend out of and retract into the output opening 110.
Referring to fig. 10 and 11, in one embodiment, the peristaltic device further comprises a rotation speed detecting mechanism 700, the rotation speed detecting mechanism 700 comprises a rotation speed code wheel 710 and a speed sensor 720, the rotation speed code wheel 710 is connected with the rotation shaft 300, and the speed sensor 720 is arranged on one side close to the rotation code wheel. When the rotating shaft 300 rotates, the rotating speed code wheel 710 is driven to rotate, and the rotating speed of the rotating shaft 300 is detected through the rotating speed code wheel 710 and the speed sensor 720.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A peristaltic device, comprising:
a mount having an output opening;
the pump pieces are movably arranged in the mounting seat and are provided with extrusion sides, and the extrusion sides can extend out of the output opening to move so as to extrude the infusion tube and retract into the output opening so as to relieve the extrusion of the infusion tube;
the rotating shaft is rotatably arranged in the mounting seat;
the eccentric wheels are sleeved on the rotating shaft and are in one-to-one corresponding contact with the pump pieces respectively; when the rotating shaft rotates, the eccentric wheel on the rotating shaft can be driven to rotate, and the eccentric wheel drives the extrusion side of the corresponding pump piece to periodically extend out of and retract into the output opening;
the driving assembly is respectively connected with the mounting seat and the rotating shaft and is used for driving the rotating shaft to rotate; and
the first end of the adjusting component is abutted against the mounting seat, and the adjusting component is used for driving the mounting seat to move towards the infusion tube so that the extrusion side extending out of the output opening can extrude the infusion tube to a preset extrusion state.
2. The peristaltic device of claim 1, wherein the adjustment assembly includes an elastic member, a first end of the elastic member abutting against the mounting seat, the elastic member configured to drive the mounting seat toward the infusion tube such that the squeezing side extending out of the output opening can squeeze the infusion tube to a preset squeezing state.
3. The peristaltic device of claim 2, wherein the adjustment assembly further comprises an adjustment seat, wherein a first end of the elastic member is connected to the adjustment seat, and a second end of the elastic member abuts against the mounting seat.
4. The peristaltic device of claim 3, further comprising a guide assembly coupled to the adjustment block and movably coupled to the mounting block, the guide assembly configured to guide the mounting block in a predetermined direction.
5. The peristaltic device as claimed in claim 4, wherein the guide assembly includes a guide rod, a first end of the guide rod is connected to the adjustment base, and the mounting base is provided with a connecting member movably sleeved on the guide rod.
6. The peristaltic device of claim 2, wherein the outer wall of the mounting block has a raised portion, wherein a side of the raised portion facing the resilient member has a retaining groove, and wherein the resilient member is disposed in the retaining groove proximate the first end of the mounting block.
7. A peristaltic device as claimed in claim 1, wherein the inner wall of the mounting block is provided with a guide slot into which the pump blade is inserted adjacent a side of the guide slot.
8. The peristaltic device as claimed in claim 1, wherein a first side of the eccentric is provided with a coupling protrusion for engaging with the coupling groove of the adjacent eccentric and a second side is provided with a coupling groove for engaging with the coupling protrusion of the adjacent eccentric.
9. The peristaltic device of claim 1, further comprising a rotational speed detection mechanism including a rotational speed dial coupled to the rotational shaft and a speed sensor disposed adjacent a side of the rotational dial.
10. An infusion pump comprising a body, a carrier and a peristaltic device as claimed in any one of claims 1 to 9, the peristaltic device and carrier being disposed within the body, the carrier being adapted to carry an infusion tube, the output opening of the peristaltic device facing the carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111153386.6A CN113893410A (en) | 2021-09-29 | 2021-09-29 | Peristaltic device and infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111153386.6A CN113893410A (en) | 2021-09-29 | 2021-09-29 | Peristaltic device and infusion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113893410A true CN113893410A (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111153386.6A Pending CN113893410A (en) | 2021-09-29 | 2021-09-29 | Peristaltic device and infusion pump |
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| Country | Link |
|---|---|
| CN (1) | CN113893410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118142019A (en) * | 2024-03-06 | 2024-06-07 | 郑州大学 | Constant-temperature perfusion system with adjustable nerve intervention perfusion pressure and application method thereof |
-
2021
- 2021-09-29 CN CN202111153386.6A patent/CN113893410A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118142019A (en) * | 2024-03-06 | 2024-06-07 | 郑州大学 | Constant-temperature perfusion system with adjustable nerve intervention perfusion pressure and application method thereof |
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