CN113144335A

CN113144335A - Infusion pump with liquid stopping clamp

Info

Publication number: CN113144335A
Application number: CN202110576538.7A
Authority: CN
Inventors: 胡国雄; 王岳鹏
Original assignee: Shenzhen Zhongke Biomedical Electronics Co ltd
Current assignee: Shenzhen Zhongke Biomedical Electronics Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-07-23
Anticipated expiration: 2041-05-26
Also published as: CN113144335B

Abstract

The invention belongs to the technical field of medical instruments, and particularly discloses an infusion pump with a liquid stopping clip, which comprises a pump body, a cabin door driving assembly and a liquid stopping clip assembly, wherein the cabin door driving assembly comprises a cabin door driving assembly and a liquid stopping clip assembly; the pump body comprises a shell and a plurality of infusion units, wherein retractable cabin doors are arranged on the same sides of the infusion units, and infusion tube placing positions are arranged between the cabin doors and the power output ends of the infusion units; the cabin door driving assembly comprises a driving rod, cams and an elastic assembly, and the two cams are respectively matched with cam receiving grooves formed in two opposite side walls of the shell; the liquid stopping clamp assembly comprises a first clamping block, a second clamping block arranged at one end of the driving rod and a positioning assembly arranged below the liquid stopping clamp cavity; the second clamping block is in sliding fit with the first clamping block. The infusion pump with the structural design can effectively improve the convenience of taking, placing and stopping the infusion tube through the linkage of the second clamping block and the cabin door driving assembly, and then the infusion pump is convenient to operate.

Description

Infusion pump with liquid stopping clamp

Technical Field

The invention relates to the technical field of medical instruments, in particular to an infusion pump with a liquid stopping clip.

Background

The infusion pump is mostly provided with the infusion tube by pulling open the switch of the liquid stopping clamp, putting the infusion tube into the bayonet of the liquid stopping clamp, and then loosening the switch of the liquid stopping clamp and clamping the infusion tube. In this process, the liquid stop clamp switch must be kept open all the time by the manual force. Because the infusion tube is placed by one hand, the actual operation is inconvenient, and the infusion tube is not placed in place, so that the liquid stopping effect is influenced.

At present, some infusion pumps with liquid stopping clamp switches driven by motors are also available in the market, and although the problem of complicated operation is solved, the mechanism generally has the problems of complex structure, large volume, high manufacturing cost, troublesome production and subsequent maintenance and the like.

Disclosure of Invention

The invention aims to provide an infusion pump with a liquid stopping clip, which has a compact structure and convenient operation and is convenient for taking and placing an infusion tube.

In order to achieve the purpose, the invention adopts the following technical scheme:

an infusion pump provided with a liquid stop clip, comprising:

the pump body comprises a shell and a plurality of infusion units matched with the shell, wherein retractable cabin doors are arranged on the same sides of the infusion units, and infusion tube placing positions are arranged between the cabin doors and the power output ends of the infusion units;

the cabin door driving assembly is used for synchronously opening and closing the plurality of cabin doors and comprises driving rods penetrating through the plurality of infusion units, cams arranged at two ends of the driving rods and a plurality of elastic assemblies arranged in the plurality of infusion units and respectively matched with the driving rods, and the two cams are respectively matched with cam receiving grooves formed in two opposite side walls of the shell;

the liquid stopping clamp assembly is matched with a liquid stopping clamp cavity arranged at one end of the shell, and comprises a first clamping block in sliding fit with the liquid stopping clamp cavity, a second clamping block arranged at one end of the driving rod and a positioning assembly arranged below the liquid stopping clamp cavity and used for positioning the first clamping block; the second clamping block is in sliding fit with the first clamping block.

When the driving rod is twisted to rotate, the cabin doors are opened and closed synchronously under the action of the cam, and the second clamping block slides back and forth along a first sliding groove formed in the upper surface of the first clamping block.

The exposed end of the first clamping block is provided with a clamping jaw matched with the second clamping block, and an extension wall which is abutted to one end of the first sliding groove extends out of one end, far away from the clamping jaw, of the second clamping block.

The positioning assembly comprises a positioning column vertically penetrating through the bottom of the liquid stopping clamp cavity and a positioning ball convexly arranged at the top of the positioning column, and the positioning ball is matched with a spherical pit arranged on the lower bottom surface of the first clamping block.

The infusion unit comprises a support in sliding fit with the shell, a driving piece in sliding fit with the support and a driving piece used for driving the driving piece to slide back and forth, and two ends of the driving piece are respectively pivoted with two opposite side walls of the shell.

Wherein, the hatch door is extended from one end of the bracket far away from the driving piece.

The support is provided with a plurality of cavities for installing the driving sheets side by side, and second sliding grooves matched with the driving sheets are formed in the walls of the cavities.

The elastic assembly comprises a sleeve and a baffle which penetrate through the infusion unit, and a spring arranged between the baffle and the sleeve, and the sleeve is sleeved on the driving rod.

And the two ends of the sleeve are respectively in sliding fit with the long grooves formed in the two ends of the support.

Wherein, the one end that the actuating lever exposes in the casing is provided with the knob.

The invention has the beneficial effects that: the invention discloses an infusion pump with a liquid stopping clamp, which comprises a pump body, a cabin door driving assembly and a liquid stopping clamp assembly, wherein the cabin door driving assembly is arranged on the pump body; the pump body comprises a shell and a plurality of infusion units matched with the shell, wherein retractable cabin doors are arranged on the same sides of the plurality of infusion units, and infusion tube placing positions are arranged between the cabin doors and power output ends of the infusion units; the cabin door driving assembly comprises a driving rod penetrating through the plurality of infusion units, cams arranged at two ends of the driving rod, and a plurality of elastic assemblies arranged in the plurality of infusion units and respectively matched with the driving rod, wherein the two cams are respectively matched with cam accommodating grooves formed in two opposite side walls of the shell; the liquid stopping clamp assembly comprises a first clamping block in sliding fit with the liquid stopping clamp cavity, a second clamping block arranged at one end of the driving rod and a positioning assembly arranged below the liquid stopping clamp cavity and used for positioning the first clamping block; the second clamping block is in sliding fit with the first clamping block. The infusion pump with the structural design can effectively improve the convenience of taking, placing and stopping the infusion tube through the linkage of the second clamping block and the cabin door driving assembly, and then the infusion pump is convenient to operate.

Drawings

Fig. 1 is an isometric view of an infusion pump in accordance with this embodiment.

Fig. 2 is an isometric view of the infusion pump of fig. 1 with the housing removed.

Fig. 3 is an exploded view of the infusion unit in this embodiment.

Fig. 4 is an isometric view of the drive rod of fig. 3 engaged with the resilient assembly.

In the figure:

11. a housing; 111. a liquid stopping clamp cavity; 12. a transfusion unit; 121. a cabin door; 122. placing the infusion tube; 123. a support; 1231. a second chute; 1232. a long groove; 124. a driving plate; 125. a drive member; 21. a drive rod; 22. a cam; 23. an elastic component; 231. a sleeve; 232. a baffle plate; 233. a spring; 24. a knob; 31. a first clamping block; 311. a clamping jaw; 312. a first chute; 32. a second clamp block; 321. extending the wall; 331. a positioning column; 332. and a positioning ball.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Fig. 1 is a perspective view of an infusion pump of the present embodiment, fig. 2 is a perspective view of fig. 1 with a housing 11 removed, fig. 3 is an exploded view of a plurality of infusion units provided in the infusion pump of the present embodiment, and fig. 4 is a perspective view of fig. 3 with a drive rod 21 engaged with an elastic member 23.

As shown in fig. 1 to 4, the infusion pump in this embodiment mainly comprises a pump body, a cabin door driving assembly, a liquid stopping clip assembly and the like, and the liquid stopping clip assembly and the cabin door driving assembly can be linked, so that the infusion tube can be conveniently operated by one hand when being replaced and stopped, and then, the operation convenience of the infusion pump is effectively improved, and the infusion pump is convenient and practical.

Specifically, the pump body in this embodiment includes a housing 11 and a plurality of infusion units 12 matched with the housing 11, wherein a retractable hatch 121 is disposed on the same side of each of the plurality of infusion units 12, and an infusion tube placement position 122 is disposed between the hatch 121 and a power output end of the infusion unit 12. When the infusion tube is placed in the infusion tube placing position 122 and the hatch 121 is driven to close with one side of the shell 11, the hatch 121 is in a closed state.

Referring to fig. 1 to 3, the infusion unit 12 in this embodiment includes a bracket 123 slidably engaged with the housing 11, a driving plate 124 slidably engaged with the bracket 123, and a driving member 125 for driving the driving plate 124 to slide back and forth, two ends of the driving member 125 are respectively pivoted with two opposite sidewalls of the housing 11, a door 121 extends out of one end of the bracket 123 far away from the driving member 125, the bracket 123 is provided with a cavity for installing the driving plates 124 side by side, and a second sliding groove 1231 engaged with the driving plate 124 is formed in a wall of the cavity.

Preferably, the driving member 125 of the present embodiment is provided with a plurality of driving wheels side by side along the length direction, and the driving wheels are disposed non-coaxially, so that the driving wheels drive the corresponding driving plate 124 to extend and retract, and then squeeze the infusion tube placed in the infusion tube placing position 122, so as to drive the liquid in the infusion tube to feed forward. The specific structural configuration of this portion has been disclosed in the related art, and is not described in detail here.

More specifically, in the present embodiment, in order to facilitate the manual driving of the plurality of hatches 121 to open and close synchronously, and further facilitate the taking and placing of the infusion tube, preferably, the hatch driving assembly in the present embodiment includes a driving rod 21 penetrating through the plurality of infusion units 12, cams 22 disposed at two ends of the driving rod 21, and a plurality of elastic assemblies 23 disposed in the plurality of infusion units 12 and respectively matched with the driving rod 21, and the two cams 22 are respectively matched with cam receiving grooves disposed on two opposite side walls of the housing 11.

In the hatch driving assembly with the above-mentioned structure design, in order to facilitate the rotation of the driving rod 21 by manually twisting, preferably, a knob 24 is disposed at one end of the driving rod 21 exposed out of the casing 11. When the hatch door 121 is opened, the knob 24 is manually twisted, and the driving rod 21 is driven to rotate. Because the driving rod 21 is provided with the cams 22 at both ends, the driving rod 21 drives the infusion units 12 to move under the action of the cams 22, and then drives the hatch door 121 and one end face of the housing 11 to close or open.

Further preferably, in this embodiment, in order to facilitate the driving rod 21 to drive the plurality of infusion units 12 to move synchronously, the elastic component 23 disposed in each infusion unit 12 includes a sleeve 231 and a baffle 232 penetrating through the infusion unit 12, and a spring 233 disposed between the baffle 232 and the sleeve 231, the sleeve 231 in the elastic component 23 disposed in this way is sleeved on the driving rod 21, and two ends of the sleeve 231 are slidably engaged with the elongated slots 1232 disposed at two ends of the bracket 123. Therefore, when the driving rod 21 is displaced under the action of the cam 22, the sleeve 231 sleeved on the driving rod 21 drives the bracket 123 to move, so as to close or open the port 121 and one end surface of the shell 11, thereby facilitating replacement or taking and placing of the infusion tube placed in the infusion tube placing position 122 at one end of the bracket 123.

Furthermore, in order to facilitate the liquid stopping operation of the infusion tube when the infusion tube is taken and placed, preferably, the liquid stopping clamp assembly in the embodiment is matched with the liquid stopping clamp cavity 111 arranged at one end of the shell 11, and the liquid stopping clamp assembly comprises a first clamping block 31 in sliding fit with the liquid stopping clamp cavity 111, a second clamping block 32 arranged at one end of the driving rod 21, and a positioning assembly arranged below the liquid stopping clamp cavity 111 and used for positioning the first clamping block 31; the second clamping block 32 is in sliding fit with the first clamping block 31; more specifically, the exposed end of the first clamping block 31 is provided with a clamping jaw 311 matched with the second clamping block 32, an extension wall 321 abutting against one end of the first sliding groove 312 extends out of one end, far away from the clamping jaw 311, of the second clamping block 32, and the extension wall 321 is arranged, so that when the second clamping block 32 slides along the length direction of the first clamping block 31, better guidance performance is achieved.

In addition, the positioning assembly includes a positioning post 331 vertically penetrating the bottom of the liquid stop clamping cavity 111, and a positioning ball 332 protruding from the top of the positioning post 331, wherein the positioning ball 332 is matched with a spherical recess formed on the lower bottom surface of the first clamping block 31. Preferably, two spherical recesses are provided on the lower bottom surface of the first clamping block 31, so as to facilitate the forward sliding and the positioning after the resetting.

Further preferably, in order to facilitate the positioning of the first clamping block 31 by the positioning ball 332 at the top of the positioning column 331 when sliding back and forth, the positioning column 331 in this embodiment can be configured as an elastic positioning column 331, and the specific structural design related to this type of positioning manner is common in the related art and will not be described herein in detail.

With the above-mentioned structure, when the driving rod 21 is twisted to rotate, the plurality of doors 121 are opened and closed synchronously under the action of the cam 22, and the second clamping block 32 slides back and forth along the first sliding slot 312 provided on the upper surface of the first clamping block 31.

In this embodiment, taking placing a new infusion tube as an example, in an initial state, the hatch 121 and the liquid stopping clamp assembly are both in an open state, when the infusion tube is placed between the first clamping block 31 and the second clamping block 32 in the liquid stopping clamp assembly, the clamping jaws 311 of the first clamping block 31 and the second clamping block 32 can be manually pushed to close, and the positioning ball 332 at the top end of the positioning column 331 is used for positioning the first clamping block 31, so as to stop the infusion tube; then, the front section of the infusion tube is placed in the infusion tube placing position 122, finally, the driving rod 21 is twisted manually to drive the door 121 to be closed, and at the moment, the second clamping block 32 is separated from the clamping jaw 311 of the first clamping block 31 under the action of the driving rod 21, so that the infusion tube can normally infuse under the action of the pump body. The operation is convenient and fast, and the liquid stopping of the infusion tube and the opening and closing of the hatch door 121 can be completed by only one hand when the infusion tube is installed.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The utility model provides an be provided with transfer pump that ends liquid clamp which characterized in that includes:

the pump body comprises a shell (11) and a plurality of infusion units (12) matched with the shell (11), wherein retractable hatches (121) are arranged on the same side of the infusion units (12), and infusion tube placing positions (122) are arranged between the hatches (121) and the power output ends of the infusion units (12);

the cabin door driving assembly is used for synchronously opening and closing the plurality of cabin doors (121), and comprises a driving rod (21) penetrating through the plurality of infusion units (12), cams (22) arranged at two ends of the driving rod (21), and a plurality of elastic assemblies (23) arranged in the plurality of infusion units (12) and respectively matched with the driving rod (21), wherein the two cams (22) are respectively matched with cam receiving grooves formed in two opposite side walls of the shell (11);

the liquid stopping clamp assembly is matched with a liquid stopping clamp cavity (111) arranged at one end of the shell (11), and comprises a first clamping block (31) in sliding fit with the liquid stopping clamp cavity (111), a second clamping block (32) arranged at one end of the driving rod (21), and a positioning assembly arranged below the liquid stopping clamp cavity (111) and used for positioning the first clamping block (31); the second clamping block (32) is in sliding fit with the first clamping block (31).

2. The infusion pump with a liquid stop clip according to claim 1, wherein when the driving rod (21) is twisted to rotate, the plurality of doors (121) are opened and closed synchronously under the action of the cam (22), and the second clamping block (32) slides back and forth along a first sliding groove (312) formed in the upper surface of the first clamping block (31).

3. The infusion pump with the liquid stopping clip is characterized in that the exposed end of the first clamping block (31) is provided with a clamping jaw (311) matched with the second clamping block (32), and an extending wall (321) which is abutted against one end of the first sliding groove (312) extends out of one end, far away from the clamping jaw (311), of the second clamping block (32).

4. The infusion pump with the liquid stop clip as set forth in claim 1, wherein the positioning assembly comprises a positioning column (331) vertically penetrating the bottom of the cavity (111) of the liquid stop clip, and a positioning ball (332) protruding from the top of the positioning column (331), the positioning ball (332) is engaged with a spherical recess formed on the bottom of the first clip block (31).

5. The infusion pump with the liquid stopping clip as set forth in claim 1, wherein the infusion unit (12) comprises a bracket (123) slidably engaged with the casing (11), a driving plate (124) slidably engaged with the bracket (123), and a driving member (125) for driving the driving plate (124) to slide back and forth, wherein two ends of the driving member (125) are respectively pivoted with two opposite side walls of the casing (11).

6. An infusion pump provided with a liquid stop clip according to claim 5, wherein the hatch (121) is extended from an end of the bracket (123) remote from the drive member (125).

7. The infusion pump with the liquid stopping clip is characterized in that the bracket (123) is provided with a cavity for mounting the driving plates (124) side by side, and the cavity wall of the cavity is provided with a second sliding groove (1231) matched with the driving plates (124).

8. The infusion pump with the liquid stop clip as set forth in claim 5, wherein the elastic member (23) comprises a sleeve (231) and a baffle (232) passing through the infusion unit (12), and a spring (233) disposed between the baffle (232) and the sleeve (231), the sleeve (231) is sleeved on the driving rod (21).

9. An infusion pump provided with a liquid stop clip according to claim 8, wherein both ends of the sleeve (231) are slidably fitted with elongated slots (1232) provided at both ends of the bracket (123), respectively.

10. An infusion pump provided with a liquid stop clip according to claim 8, wherein the end of the driving rod (21) exposed out of the casing (11) is provided with a knob (24).