CN113499508B

CN113499508B - Infusion pump capable of automatically clamping and infusing tube

Info

Publication number: CN113499508B
Application number: CN202110795743.2A
Authority: CN
Inventors: 王峰; 王超杰; 朱宏伟; 沈栋
Original assignee: Joymed Technology (shanghai) Ltd
Current assignee: Joymed Technology (shanghai) Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-08-26
Anticipated expiration: 2041-07-14
Also published as: CN113499508A

Abstract

The invention discloses an infusion pump capable of automatically clamping and infusing a tube, and belongs to the technical field of infusion pumps. Casing and installation lid including the cooperation setting, be equipped with in the installation lid and remain the transfer line subassembly of card and, the casing is equipped with the cavity that is used for holding the installation lid, be equipped with card and subassembly in this cavity, card and subassembly are used for the segmental arc of automatic card and transfer line subassembly, card and subassembly include the axis of rotation and set up in the fixed lid of rotation of axis of rotation one end, it is equipped with an arc deflector that is used for leading the segmental arc to rotate to cover fixedly, the transfer pump is through the installation lid that is equipped with the transfer line subassembly that remains the card and, can be convenient install the transfer line subassembly in the transfer pump, and the segmental arc's of transfer line subassembly the position that sets up and the position phase-match of arc deflector make the segmental arc that the arc deflector can be convenient to the back installation that leads to the transfer line subassembly, simple structure convenient to use.

Description

Infusion pump capable of automatically clamping and infusing tube

Technical Field

The invention belongs to the technical field of infusion pumps, and particularly relates to an infusion pump capable of automatically clamping and infusing a liquid pipe.

Background

At present, the common infusion apparatus widely applied clinically mainly inputs liquid to a receptor by depending on liquid level difference pressure, and controls the infusion speed by depending on visual observation of nursing staff and manual adjustment of a wheel clamp. The common infusion apparatus lacks functions of blocking alarm, bubble alarm, liquid infusion completion alarm and the like, and increases the burden of clinical care; and the liquid bottle is easy to introduce outside air polluted liquid. The infusion pump is an instrument which can accurately control the number of infusion drops or the infusion flow rate, ensure that the medicine can be evenly injected, ensure the medicine amount to be accurate and safely enter the body of a patient to play a role, is an intelligent infusion device, has the infusion speed not influenced by the back pressure of the human body and an operator, is accurate and reliable in infusion, contributes to reducing the working intensity of clinical care, and improves the accuracy, the safety and the care quality of the infusion.

The infusion pump has various product models and different performances. Can divide into peristaltic control formula transfer pump, constant volume control formula transfer pump and syringe microinjection formula transfer pump three types according to its job features, but current transfer pump need install the transfer line at the in-process that uses, with the transfer line card with to the drive shaft on, current mounting means all installs for the manual work, not only installs inconveniently and appear easily and install the risk that does not put in place, consequently need a transfer pump convenient to install urgently.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to solve the problems that the existing infusion pump is inconvenient to install an infusion tube and is easy to be installed in place.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the infusion pump comprises a shell and an installation cover which are arranged in a matched mode, an infusion tube component to be clamped is arranged in the installation cover, the shell is provided with a cavity used for accommodating the installation cover, a clamp and a component are arranged in the cavity and used for automatically clamping an arc-shaped section of the infusion tube component, the clamp and the component comprise a rotating shaft and a rotating fixing cover arranged at one end of the rotating shaft, an arc-shaped guide plate used for guiding the arc-shaped section is arranged on the rotating fixing cover, and the rotating direction of the arc-shaped guide plate is the same as the clamping and direction of the infusion tube component.

Preferably, two ends of the arc-shaped section of the infusion tube component are respectively connected with two parallel vertical sections, and the two vertical sections are connected with a joint through a connecting piece.

Preferably, a clip and a groove are arranged in the mounting cover, the connecting piece is clipped in the fixing plate, and the fixing plate is embedded in the clip and the groove to fix the infusion tube assembly in the mounting cover.

Preferably, one end of the mounting cover corresponding to the card and the assembly extends outwards to form a matching cavity, and the size of the matching cavity is matched with that of the card and the assembly.

Preferably, the cooperation intracavity is equipped with arc card and piece that is used for blocking in advance and the arc section, the cooperation chamber is close to a side of card and subassembly is equipped with an arc wall, the radian of arc wall is less than the arc that the arc section is undeformed, arc card and piece include along the gomphosis board that the arc wall lateral wall set up, the one end that gomphosis board kept away from the arc wall be equipped with the non-return plate that the arc wall bottom surface parallels.

Preferably, the height L1 of the embedded plate relative to the bottom surface of the arc-shaped groove is less than or equal to the diameter d of the cross section of the arc-shaped section in an undeformed state, specifically, 0.8d is less than or equal to L1 is less than or equal to 1.1 d.

Preferably, the width of the check plate is less than or equal to the radius of the cross section of the arc-shaped section in an undeformed state.

Preferably, one end of the arc-shaped clamp and one end of the arc-shaped block are not completely arranged along the side wall of the arc-shaped groove, and one end of the arc-shaped groove, which is not provided with the arc-shaped clamp and the arc-shaped block, is close to the guide end of the arc-shaped guide plate.

Preferably, the arc-shaped guide plate extends outwards towards one end away from the rotating shaft.

Preferably, the arc deflector includes interconnect's embedded end and direction end, the embedded end with the edge connection who rotates fixed lid, the direction end with the middle zone that rotates fixed lid is connected, the radian of embedded end is less than the radian of direction end.

Preferably, the infusion set further comprises a fixing assembly for clamping the infusion tube assembly, wherein the fixing assembly comprises a card and a plate for fixing a vertical section in the infusion tube assembly, and the size of the card and the size of the plate are matched with that of the vertical section so that the arc-shaped section is embedded into the guide end of the arc-shaped guide plate.

Preferably, the height of the arc-shaped guide plate protruding out of the rotating surface of the rotating fixed cover is h, the radius of the cross section of the arc-shaped section in an undeformed state is r, and r is more than h and less than 3 r.

Preferably, the included angle formed by the arc-shaped guide plate and the rotary fixing cover is a, and a is 45-75 degrees.

Preferably, the rotational direction of the rotationally fixed cover is adapted to the position of the insertion end and the guide end such that the arc-shaped section first comes into contact with the guide end.

Preferably, the card and the assembly further comprise a rotation support cover arranged in parallel with the rotation fixing cover, the rotation support cover is arranged at one end, away from the rotation fixing cover, of the rotation shaft, and the rotation support cover is provided with an opening communicated with the rotation shaft.

Preferably, the rotary supporting cover and the rotary fixing cover are both provided with fixing holes, and the positions of the fixing holes of the rotary supporting cover and the rotary fixing cover are matched so that a plurality of rolling shafts are arranged between the rotary supporting cover and the rotary fixing cover.

Preferably, the rotating shaft is fixedly connected with a driving assembly, and the driving assembly is arranged in the shell.

Preferably, the rotation support cover and the rotation fixing cover are symmetrically provided with a plurality of protruding parts, the fixing holes are correspondingly formed in the protruding parts, and the arc-shaped guide plate is arranged between the two adjacent protruding parts.

Preferably, the rotating shaft is further provided with a mounting hole for mounting the sensor.

Preferably, the mounting cover is provided with a rotating protrusion which is rotatably connected with the housing, and the rotating protrusion is arranged on one side of the mounting cover close to the card and the component.

Preferably, still be equipped with control assembly and control panel in the casing, the casing includes the back lid, the back lid is connected with fixing clip and piece through the retaining member, fixing clip and piece are equipped with the cooperation mounting, cooperation mounting centre gripping is fixed with the installation retaining member.

Preferably, the installation retaining member includes by connecting plate and the locking jack catch of cooperation mounting centre gripping, a locking jack catch lateral wall is equipped with the screw and is used for the screwed connection to have rotatory locking shaft, rotatory locking shaft is equipped with the rotation tongs at the one end in the locking jack catch outside.

Preferably, the arc-shaped card and the arc-shaped block are further provided with a reinforcing rib, the reinforcing rib is arranged on one side, close to the card and the assembly, of the embedded plate, one end, far away from the embedded plate, of the reinforcing rib is provided with an inclined plane, and the inclined plane is used for guiding the arc-shaped section to be close to the card and the assembly.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the invention relates to an infusion pump capable of automatically clamping and infusing a tube, which comprises a shell and an installation cover which are arranged in a matching way, wherein an infusion tube component to be clamped is arranged in the installation cover, the shell is provided with a cavity for accommodating the installation cover, a clamping component is arranged in the cavity, the clamping component is used for automatically clamping an arc-shaped section of the infusion tube component, the clamping component comprises a rotating shaft and a rotating fixed cover arranged at one end of the rotating shaft, and an arc-shaped guide plate for guiding the arc-shaped section is arranged on the rotating fixed cover. The transfer pump is through being equipped with the installation lid that remains the transfer line subassembly of card with, can be convenient install the transfer line subassembly in the transfer pump, and the arc section of transfer line subassembly set up the position and the arc deflector set up the position phase-match make the arc deflector can be convenient to guide the back installation to the arc section of transfer line subassembly, when the arc section of transfer line subassembly blocks slightly on card and subassembly, the axis of rotation rotates and drives the arc deflector and rotates, the arc deflector rotates and makes the arc section along the spigot surface card of arc deflector and in the axis of rotation, can convenient and fast carry out the installation of transfer line, simple structure convenient to use.

Drawings

FIG. 1 is a schematic view of an infusion pump for automatically clamping and infusing a tube according to the present invention;

FIG. 2 is a schematic view of the mounting arrangement of the clip and assembly and infusion tube assembly of the present invention;

FIG. 3 is a front view of the card and assembly of embodiment 1;

FIG. 4 is an isometric view of the card and assembly of example 1;

FIG. 5 is a side view of the card and assembly of embodiment 1;

FIG. 6 is a top view of the card and assembly of embodiment 1;

FIG. 7 is a schematic structural view of a card and a component of embodiment 2;

FIG. 8 is a partial schematic view of an automatic cassette and infusion pump of the present invention;

FIG. 9 is a rear view of an infusion pump with an automatic card and infusion tube of the present invention;

FIG. 10 is a side view of the mounting cap of the present invention;

FIG. 11 is a schematic view of the construction of the mounting cup of the present invention;

fig. 12 is a schematic view of the different angle configurations of the arcuate card and the block of the present invention.

The reference numerals in the schematic drawings illustrate:

100. cards and components; 110. rotating the support cover; 120. a rotating shaft; 121. mounting holes; 122. a roller; 130. rotating the fixed cover; 131. a boss portion; 132. an arc-shaped guide plate; 133. a fixing hole; 134. an embedded end; 135. a guide end; 136. a non-return portion;

200. an infusion tube assembly; 210. a joint; 220. a connecting member; 230. a vertical section; 240. an arc-shaped section; 250. a fixing plate;

300. a fixing component; 310. a card and a plate;

400. a drive assembly;

500. installing a cover; 510. rotating the projection; 520. an arc-shaped clamp and a block; 521. an arc-shaped slot; 522. a tabling plate; 523. reinforcing ribs; 524. a bevel; 525. a check plate; 530. a card and slot; 540. a limiting plate; 550. a mating cavity;

600. a housing; 610. a control panel; 620. a rear cover; 630. a locking member; 640. a fixing clip and a fixing member; 650. fitting the fixing member;

700. installing a locking piece; 710. a connecting plate; 720. locking the clamping jaw; 730. rotating the locking shaft; 740. the gripper is rotated.

Detailed Description

In order that the invention may be more fully understood, reference will now be made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration several embodiments of the invention which may be practiced in many different forms and not limited to the embodiments described herein, but which are provided for the purpose of providing a more complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1-6 and fig. 7-12, the infusion pump with automatic clamp and infusion tube of the present embodiment includes a casing 600 and an installation cover 500 which are cooperatively disposed, the infusion tube assembly 200 to be clamped is disposed in the installation cover 500, the casing 600 is provided with a cavity for accommodating the installation cover 500, a clamp assembly 100 is disposed in the cavity, the clamp assembly 100 is used for automatically clamping the arc-shaped section 240 of the infusion tube assembly 200, the clamp assembly 100 includes a rotation shaft 120 and a rotation fixing cover 130 disposed at one end of the rotation shaft 120, an arc-shaped guide plate 132 for guiding the arc-shaped section 240 is disposed on the rotation fixing cover 130, and the rotation direction of the arc-shaped guide plate 132 is the same as the clamping and direction of the infusion tube assembly 200. The position of the infusion tube assembly 200 in the mounting cover 500 is matched with the position of the clip and assembly 100 so that when the mounting cover 500 is mounted on the casing 600, the arc-shaped section 240 of the infusion tube assembly 200 is just embedded into the clip and assembly 100, specifically, the arc-shaped section 240 of the infusion tube assembly 200 is just arranged at the periphery of the arc-shaped guide plate 132, the infusion tube assembly 200 can be conveniently mounted in the infusion pump by the mounting cover 500 provided with the infusion tube assembly 200 to be clipped, and the arrangement position of the arc-shaped section 240 of the infusion tube assembly 200 is matched with the arrangement position of the arc-shaped guide plate 132 so that the arc-shaped guide plate 132 can conveniently guide the arc-shaped section 240 of the infusion tube assembly 200 for mounting, when the arc-shaped section 240 of the infusion tube assembly 200 is slightly clipped on the clip and assembly 100, the rotating shaft 120 rotates to drive the arc-shaped guide plate 132 to rotate, the arc-shaped guide plate 132 rotates to make the arc-shaped section 240 clipped and arranged on the rotating shaft 120 along the guide surface of the arc-shaped guide plate 132, can conveniently and quickly install the infusion tube, and has simple structure and convenient use.

Specifically, the two parallel vertical sections 230 are connected to two ends of the arc section 240 of the infusion tube assembly 200 of this embodiment, and the two vertical sections 230 are connected to the connector 210 through the connector 220. The mounting cap 500 is provided with a catch and groove 530 therein, the connector 220 is caught and seated in the fixing plate 250, and the fixing plate 250 is fitted into the catch and groove 530 such that the infusion tube set 200 is fixed in the mounting cap 500. The infusion tube set 200 can be easily installed and removed in the installation cover 500 by the cooperation of the fixing plate 250 and the clip and groove 530.

The mounting cap 500 extends outwardly to form a mating cavity 550 corresponding to an end of the card and assembly 100, the mating cavity 550 having dimensions that are compatible with the dimensions of the card and assembly 100, and when the mounting cap 500 is mounted in the housing 600, the mating cavity 550 just covers the card and assembly 100 and provides space for the card and assembly 100 to contact the infusion tube assembly 200. The mounting cap 500 is also provided with a clip and plate 540 for securing the administration tube set 200.

The matching cavity 550 is internally provided with an arc-shaped clamp and block 520 for pre-clamping and arc-shaped section 240, one side surface of the matching cavity 550 close to the clamp and the assembly 100 is provided with an arc-shaped groove 521, the radian of the arc-shaped groove 521 is smaller than the undeformed radian of the arc-shaped section 240, the arc-shaped clamp and block 520 comprises a tabling plate 522 arranged along the side wall of the arc-shaped groove 521, and one end of the tabling plate 522, which is far away from the arc-shaped groove 521, is provided with a check plate 525 parallel to the bottom surface of the arc-shaped groove 521. The fitting plate 522 is used for clamping the arc-shaped segment 240, and the fitting plate 522 is matched with the arc-shaped groove 521 to enable the arc-shaped segment 240 to incline towards the direction close to the arc-shaped groove 521, so that the arc-shaped segment 240 can be conveniently contacted with the arc-shaped guide plate 132, and the fitting plate 522 is used for preventing the arc-shaped segment 240 from falling off from the fitting plate 522.

When the arc-shaped segment 240 of the infusion tube set 200 is caught by the engaging plate 522, the two vertical segments 230 are caught by the connecting member 220 and are caught by the mounting cap 500, and the distance between the engaging plate 522 and the catching groove 530 is greater than the distance between the arc-shaped segment 240 and the connecting member 220 so that the arc-shaped segment 240 is elongated and fixed to the engaging plate 522, the engaging plate 522 is disposed along the sidewall of the arc-shaped groove 521, so that the engaging plate 522 allows the arc-shaped segment 240 to be elongated into an arc with a smaller arc degree, thereby facilitating the contact with the arc-shaped guide plate 132.

The height L1 of the embedding plate 522 relative to the bottom surface of the arc-shaped groove 521 is less than or equal to the diameter d of the cross section of the arc-shaped section 240 in an undeformed state, specifically, 0.8d is less than or equal to L1 is less than or equal to 1.1d, so that when the arc-shaped section 240 is limited and fixed by the embedding plate 522, the arc-shaped section 240 is just fixed by the embedding plate 522, and when L1 is less than 0.8d, because the arc-shaped section 240 is fixed, elongated and deformed by the embedding plate 522, and under the action of the elastic force of the arc-shaped section 240, the arc-shaped section 240 can easily slide out of the embedding plate 522, so that the situation that the fixation is not firm occurs; when L1 is greater than 1.1d, the arc-shaped segment 240 has a certain displacement space on the fitting plate 522, which is not favorable for the arc-shaped guide plate 132 to be engaged with the arc-shaped segment 240.

The width of the check plate 525 is less than or equal to the radius of the cross section of the arc-shaped section 240 in the non-deformed state, so that the arc-shaped section 240 can be prevented from being clamped and providing excessive resistance by the arc-shaped guide plate 132 under the condition that the arc-shaped section 240 is guaranteed to be checked, and the stability of the contact clamping of the arc-shaped guide plate 132 and the arc-shaped section 240 is guaranteed.

In addition, one end of the arcuate clip and block 520 is not disposed completely along the sidewall of the arcuate slot 521, and the end of the arcuate slot 521 where the arcuate clip and block 520 is not disposed is proximate to the guide end 135 of the arcuate guide plate 132. Since the arc-shaped segment 240 is elongated and fixed to the fitting plate 522, when one end of the arc-shaped catch and block 520 is not completely positioned along the side wall of the arc-shaped groove 521, the distance between the conduit on either side of the arcuate segment 240 relative to the arcuate clamp and block 520 and the arcuate clamp and block 520 may be made different, and the arc-shaped section 240 is spaced from the arc-shaped guide plate 132 differently with respect to the pipe lines on both sides of the arc-shaped clip and block 520, and the distance that the arc-shaped block 520 is not completely arranged along the side wall of the arc-shaped groove 521 is matched with the distance that the arc-shaped section 240 is relative to the arc-shaped guide plate 132, so that the distance that the arc-shaped section 240 is relative to the pipeline at the two sides of the arc-shaped block 520 and the arc-shaped guide plate 132 is smaller than the distance that the arc-shaped section 240 can be clamped by the arc-shaped guide plate 132 on one side and is larger than the distance that the arc-shaped section 240 can be clamped by the arc-shaped guide plate 132 on the other side, thereby ensuring that the arcuate guide plate 132 can engage the arcuate segment 240 in the correct orientation to ensure that the arcuate segment 240 does not twist.

Wherein the arc-shaped guide plate 132 extends outwardly toward an end away from the rotation shaft 120 to facilitate gripping and guiding the arc-shaped section 240 of the infusion tube assembly 200.

The arc-shaped guide plate 132 comprises an embedded end 134 and a guide end 135 which are connected with each other, the embedded end 134 is connected with the edge of the rotating fixed cover 130, the guide end 135 is connected with the middle area of the rotating fixed cover 130, and the radian of the embedded end 134 is smaller than that of the guide end 135. Not only can the arc-shaped section 240 of the infusion tube assembly 200 well follow the guide end 135 into the insertion end 134, but also can the arc-shaped section 240 of the infusion tube assembly 200 be prevented from rebounding from the insertion end 134 to the guide end 135.

Also included is a fixation assembly 300 for holding the infusion tube assembly 200, the fixation assembly 300 including a clip and plate 310 for securing the vertical section 230 within the infusion tube assembly 200, the clip and plate 310 sized to fit the vertical section 230 such that the arcuate section 240 fits within the guide end 135 of the arcuate guide plate 132. Specifically, when the vertical segment 230 is engaged with the card and plate 310, the curved segment 240 is pressed by the vertical segment 230 against the surface of the card and assembly 100 to slide into the curved guide 132 and be guided onto the roller 122 as the card and assembly 100 rotates.

The protruding arc guide plate 132 the height of the rotating surface of the rotating fixing cover 130 is h, the radius of the arc section 240 is r, and r is less than h and less than 3r, so that the arc guide plate 132 can be ensured to clamp the arc section 240 into the arc guide plate 132 in the rotating process and guided to the roller 122 by the arc guide plate 132. When h is less than r, the position where the arc guide plate 132 contacts the arc section 240 is lower than half of the arc section 240, so that the arc section 240 cannot be clamped by the arc guide plate 132, and when h is greater than 3r, the opening of the arc guide plate 132 is too large, and the distance of the arc guide plate 132 is too large, so that the arc section 240 always contacts the surface of the arc guide plate 132 and is difficult to be clamped by the arc guide plate 132.

The included angle formed between the arc-shaped guide plate 132 and the rotating fixing cover 130 is a, and a is 45-75 °, so that a good clamping force can be provided when the arc-shaped guide plate 132 and the rotating fixing cover 130 clamp the arc-shaped section 240.

The rotational direction of the rotation fixing cap 130 is matched to the positions of the insertion end 134 and the guide end 135 such that the arc-shaped segment 240 is first in contact with the guide end 135.

Two parallel vertical sections 230 are respectively connected to two ends of the arc-shaped section 240 of the infusion tube assembly 200, and the two vertical sections 230 are connected to the connector 210 through the connector 220.

The card and assembly 100 further includes a rotation support cover 110 disposed in parallel with the rotation fixing cover 130, the rotation support cover 110 is disposed at an end of the rotation axis 120 away from the rotation fixing cover 130, and the rotation support cover 110 is provided with an opening communicating with the rotation axis 120.

The rotary supporting cover 110 and the rotary fixing cover 130 are both provided with fixing holes 133, and the positions of the fixing holes 133 of the rotary supporting cover 110 and the rotary fixing cover 130 are matched so that a plurality of rollers 122 are arranged between the rotary supporting cover 110 and the rotary fixing cover 130. The arc-shaped section 240 is sleeved outside the plurality of rollers 122, and when the rotating shaft 120 rotates, the rollers 122 and the arc-shaped section 240 roll relatively to each other to perform infusion.

The rotating shaft 120 is fixedly connected with a driving assembly 400. The rotary supporting cover 110 and the rotary fixing cover 130 are symmetrically provided with a plurality of protrusions 131, preferably 3, but not limited to 3, and may also be 2, 4, 5, 6. The rotating shaft 120 is further provided with a mounting hole 121 for mounting a sensor.

The mounting cover 500 is provided with a rotating protrusion 510 rotatably connected with the housing 600, so that the mounting cover 500 can be rotated conveniently to replace the infusion tube assembly 200, the rotating protrusion 510 is arranged on one side of the mounting cover 500 close to the clip assembly 100, so that the mounting cover 500 can conveniently separate the arc-shaped section 240 of the infusion tube assembly 200 from the clip assembly 100 when opened.

The housing 600 is further provided with a control assembly and a control panel 610, and the control assembly and the control panel 610 are electrically connected with the driving assembly 400. The control panel 610 interacts and sends control commands to the control assembly which in turn controls the speed at which the drive assembly 400 rotates the card and the assembly 100 to effect rate adjustment of the infusion pump.

Casing 600 includes back lid 620, back lid 620 is connected with fixing clip and piece 640 through retaining member 630, fixing clip and piece 640 are equipped with cooperation mounting 650, cooperation mounting 650 centre gripping is fixed with installation retaining member 700. The installation locking member 700 includes a connection plate 710 and a locking jaw 720 held by the mating fixture 650, a screw hole is formed in a side wall of the locking jaw 720 for screw-coupling a rotary locking shaft 730, and a rotary grip 740 is formed at an end of the rotary locking shaft 730 outside the locking jaw 720.

The arc-shaped card and block 520 is further provided with a reinforcing rib 523, the reinforcing rib 523 is arranged on one side of the embedded plate 522 close to the card and component 100, one end of the reinforcing rib 523 far away from the embedded plate 522 is provided with an inclined surface 524, and the inclined surface 524 is used for guiding the arc-shaped section 240 to be close to the card and component 100.

Example 2

Referring to fig. 1, 2, and 7 to 12, the basic structure of the present embodiment is the same as that of embodiment 1, except that a check portion 136 is provided on the arc-shaped guide plate 132 of the present embodiment, the check portion 136 is provided on a guide surface of the arc-shaped guide plate 132 adjacent to the arc-shaped guide plate 132, and the check portion 136 includes an arc-shaped guide surface and a check slope.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which shall fall within the protective scope of the invention; therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. An infusion pump capable of automatically clamping and infusing a liquid pipe is characterized in that: the infusion tube clamping device comprises a shell (600) and an installation cover (500) which are arranged in a matched mode, an infusion tube component (200) to be clamped is arranged in the installation cover (500), a cavity used for containing the installation cover (500) is formed in the shell (600), a clamping component (100) is arranged in the cavity, the clamping component (100) is used for automatically clamping an arc-shaped section (240) of the infusion tube component (200), the clamping component (100) comprises a rotating shaft (120) and a rotating fixing cover (130) arranged at one end of the rotating shaft (120), an arc-shaped guide plate (132) used for guiding the arc-shaped section (240) is arranged on the rotating fixing cover (130), and the rotating direction of the arc-shaped guide plate (132) is the same as the clamping and the direction of the infusion tube component (200);

one end of the mounting cover (500) corresponding to the card and the assembly (100) extends outwards to form a matching cavity (550), and the size of the matching cavity (550) is matched with that of the card and the assembly (100); an arc-shaped clamping and block (520) used for clamping and pre-clamping an arc-shaped section (240) is arranged in the matching cavity (550), an arc-shaped groove (521) is formed in one side face, close to the clamping and assembly (100), of the matching cavity (550), the radian of the arc-shaped groove (521) is smaller than the undeformed radian of the arc-shaped section (240), the arc-shaped clamping and block (520) comprises a mosaic plate (522) arranged along the side wall of the arc-shaped groove (521), and a check plate (525) parallel to the bottom surface of the arc-shaped groove (521) is arranged at one end, far away from the arc-shaped groove (521), of the mosaic plate (522);

arc deflector (132) include interconnect's embedded end (134) and leading end (135), embedded end (134) with the edge connection who rotates fixed lid (130), leading end (135) with the middle zone that rotates fixed lid (130) is connected, the radian of embedded end (134) is less than the radian of leading end (135).

2. An automated cassette and infusion pump, according to claim 1, wherein: two ends of an arc-shaped section (240) of the infusion tube assembly (200) are respectively connected with two parallel vertical sections (230), and the two vertical sections (230) are connected with a connector (210) through a connecting piece (220).

3. An automated cassette and infusion pump, according to claim 2, wherein: a clamping and groove (530) is arranged in the mounting cover (500), the connecting piece (220) is clamped in the fixing plate (250), and the fixing plate (250) is embedded into the clamping and groove (530) so that the infusion tube assembly (200) is fixed in the mounting cover (500).

4. An automated cassette and infusion pump, according to claim 1, wherein: the height L1 of the embedded plate (522) relative to the bottom surface of the arc-shaped groove (521) is less than or equal to the diameter d of the cross section of the arc-shaped section (240) in an undeformed state, specifically, 0.8d is less than or equal to L1 is less than or equal to 1.1 d.

5. An automated cassette and infusion pump, according to claim 1, wherein: the width of the check plate (525) is less than or equal to the radius of the cross section of the arc-shaped section (240) in an undeformed state.

6. An automated cassette and infusion pump, according to claim 1, wherein: one end of the arc-shaped clamp and block (520) is not completely arranged along the side wall of the arc-shaped groove (521), and one end of the arc-shaped groove (521) which is not provided with the arc-shaped clamp and block (520) is close to the guide end (135) of the arc-shaped guide plate (132).

7. An automated cassette and infusion pump, according to claim 1, wherein: the arc-shaped guide plate (132) extends outward toward an end away from the rotational shaft (120).

8. An automated cassette and infusion pump, according to claim 1, wherein: the infusion set further comprises a fixing assembly (300) used for clamping the infusion set assembly (200), wherein the fixing assembly (300) comprises a card and a plate (310) used for fixing the vertical section (230) in the infusion set assembly (200), and the size of the card and the plate (310) is matched with that of the vertical section (230) so that the arc-shaped section (240) is embedded into the guide end (135) of the arc-shaped guide plate (132).

9. An automated cassette and infusion pump, according to claim 1, wherein: the height of the protruding rotating surface of the rotating fixed cover (130) of the arc-shaped guide plate (132) is h, the radius of the cross section of the arc-shaped section (240) in an undeformed state is r, and r is less than h and less than 3 r.

10. An automated cassette and infusion pump, according to claim 1, wherein: the included angle that arc deflector (132) and rotation fixed lid (130) formed is a, a =45~ 75.

11. An automated cassette and infusion pump, according to claim 1, wherein: the position of the insertion end (134) and the guide end (135) is adapted to the direction of rotation of the rotation-securing cap (130) such that the arc-shaped section (240) first comes into contact with the guide end (135).

12. An automated cassette and infusion pump, according to claim 1, wherein: card and subassembly (100) still include with rotate fixed lid (130) parallel arrangement's rotation support lid (110), rotation support lid (110) set up in axis of rotation (120) keep away from the one end of rotating fixed lid (130), rotation support lid (110) is equipped with opening and axis of rotation (120) intercommunication.

13. An automated cassette and infusion pump according to claim 12, wherein: the rotary supporting cover (110) and the rotary fixing cover (130) are both provided with fixing holes (133), and the positions of the fixing holes (133) of the rotary supporting cover (110) and the rotary fixing cover (130) are matched so that a plurality of rolling shafts (122) are arranged between the rotary supporting cover (110) and the rotary fixing cover (130).

14. An infusion pump with automatic clamp and infusion tube according to claim 12, wherein: the rotating shaft (120) is fixedly connected with a driving assembly (400), and the driving assembly (400) is arranged in the shell (600).

15. An automated cassette and infusion pump, according to claim 13, wherein: rotate and support lid (110) and rotate fixed lid (130) symmetry and be equipped with a plurality of bellying (131), fixed orifices (133) all correspond the setting on bellying (131), arc deflector (132) set up between two adjacent bellying (131).

16. An infusion pump with automatic clamp and infusion tube according to claim 12, wherein: the rotating shaft (120) is also provided with a mounting hole (121) for mounting a sensor.

17. An automated cassette and infusion pump, according to claim 1, wherein: the mounting cover (500) is provided with a rotating protrusion (510) rotatably connected with the housing (600), and the rotating protrusion (510) is arranged on one side of the mounting cover (500) close to the card and the component (100).

18. An automated cassette and infusion pump, according to claim 1, wherein: still be equipped with control assembly and control panel (610) in casing (600), casing (600) are including back lid (620), back lid (620) are connected with fixing clip and piece (640) through retaining member (630), fixing clip and piece (640) are equipped with cooperation mounting (650), cooperation mounting (650) centre gripping is fixed with installation retaining member (700).

19. An automated cassette and infusion pump, according to claim 18, wherein: installation retaining member (700) including by connecting plate (710) and locking jack catch (720) of cooperation mounting (650) centre gripping, a locking jack catch (720) lateral wall is equipped with the screw and is used for screwed connection to have rotatory locking shaft (730), a tip in the locking jack catch (720) outside of rotatory locking shaft (730) is equipped with rotates tongs (740).

20. An automated cassette and infusion pump, according to claim 1, wherein: the arc-shaped clamping and block (520) is further provided with a reinforcing rib (523), the reinforcing rib (523) is arranged on one side, close to the clamping and assembly (100), of the embedding plate (522), one end, far away from the embedding plate (522), of the reinforcing rib (523) is provided with an inclined surface (524), and the inclined surface (524) is used for guiding the arc-shaped section (240) to be close to the clamping and assembly (100).