CN114569834B

CN114569834B - Infusion pump

Info

Publication number: CN114569834B
Application number: CN202210361391.4A
Authority: CN
Inventors: 周贵; 宋哲
Original assignee: Weitai Medical Device Hangzhou Co ltd
Current assignee: Weitai Medical Device Hangzhou Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2024-01-19
Anticipated expiration: 2042-04-07
Also published as: CN114569834A

Abstract

The invention discloses an infusion pump which comprises a liquid reservoir and an infusion pump body, wherein the middle side surface of the infusion pump body is connected with the middle side surface of the liquid reservoir through a sliding rail. The assembly process of the liquid storage device and the infusion pump body is smooth, the guide function is provided at the inlet, and the two slide rails can work stably after being assembled and clamped. The infusion pump disclosed by the invention is convenient and quick to pump, accurate in positioning, easy to detach and good in use experience.

Description

Infusion pump

Technical Field

The invention relates to the technical field of medical appliances, in particular to an infusion pump.

Background

Infusion pumps are medical devices that automatically administer a prescribed amount of medication at a prescribed time, which enable automatic replenishment of the medication.

Disclosure of Invention

In view of the above, the invention provides an infusion pump, which adopts a guide rail and a track to connect so as to ensure firm connection and convenient disassembly and assembly.

The invention adopts the following technical scheme: an infusion pump comprises a liquid reservoir and an infusion pump body, wherein the infusion pump body is connected with the liquid reservoir through a sliding rail.

Optionally, the side is equipped with the guide rail in the reservoir, the side is equipped with the track in the infusion pump body, wherein: the guide rail is engaged with the rail so that the guide rail and the rail can move smoothly.

Optionally, the guide rail extends from the bottom surface of the reservoir to the lower top surface of the reservoir; the rail extends from the high top surface of the infusion pump body to the low top surface of the infusion pump body.

Optionally, the guide rail has a first edge; when the guide rail slides relative to the rail, the first edge is matched with the rail.

Optionally, the first edge forms an included angle with the center line of the side surface in the liquid reservoir, and the included angle ranges from 0.5 degrees to 5 degrees.

Optionally, a limiting piece is arranged at one end, close to the low top surface of the liquid storage device, of the guide rail, and the limiting piece is located in a groove between the guide rail and the middle side surface of the liquid storage device.

Optionally, the rail is provided with a protruding part protruding to the inner side, and the rail is provided with a second edge; the second edge is mated with the rail when the rail slides relative to the rail.

Optionally, the second edge forms an angle with the center line of the side surface in the infusion pump body, and the angle is in the range of 0.5-5 °.

Optionally, the track is close to the low top surface one end of infusion pump body and is equipped with the chucking spare, the chucking spare is in the bottom of track will the track with the guide rail chucking.

Optionally, the clamping member is a protrusion provided on the rail.

According to the technical scheme of the invention, the infusion pump comprises a liquid reservoir, an infusion pump body and a bottom plate, wherein the liquid reservoir and the infusion pump body are L-shaped as a whole, and the infusion pump body is connected with the liquid reservoir through a sliding rail. The infusion pump disclosed by the invention is convenient and quick to pump and easy to detach.

Drawings

For purposes of illustration and not limitation, the invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a reservoir in an embodiment of the invention;

FIG. 2 is a perspective view of an infusion pump body in an embodiment of the present invention;

FIG. 3 is a schematic illustration of an initial state of the reservoir and infusion pump body installation in an embodiment of the present invention;

FIG. 4 is a top view of a reservoir in an embodiment of the invention;

FIG. 5 is a perspective view of a reservoir from another perspective in an embodiment of the invention;

FIG. 6 is a front view of a reservoir in an embodiment of the invention;

FIG. 7 is a top view of an infusion pump body in an embodiment of the present invention;

FIG. 8 is a front view of an infusion pump body in an embodiment of the invention;

FIG. 9 is a schematic illustration of the configuration of an infusion pump slide connection in an embodiment of the present invention;

FIG. 10 is a schematic view of the structure of the track gripping portion of the infusion pump body in an embodiment of the invention;

FIG. 11 is a schematic illustration of the structure of an infusion pump body at the beginning of a snap-fit in an embodiment of the present invention;

FIG. 12 is a schematic view of an infusion pump body in an intermediate snap-fit condition in accordance with an embodiment of the present invention;

fig. 13 is a schematic view of the structure of the infusion pump body according to the embodiment of the invention after the clamping is completed.

In the figure: 1-reservoir, 11-reservoir Gao Dingmian, 12-reservoir first L-shaped side, 13-reservoir long side, 14-reservoir second L-shaped side, 15-reservoir bottom, 16-reservoir middle side, 17-reservoir low top, 18-reservoir short side, 2-infusion pump body, 21-infusion pump body high top, 22-infusion pump body first L-shaped side, 23-infusion pump body long side, 24-infusion pump body second L-shaped side, 25-infusion pump body bottom, 26-infusion pump body middle side, 27-infusion pump body low top, 28-infusion pump body short side, 29-lead screw, 3-guide rail, 31-stopper, 32-first edge, 33-groove, 4-track, 41-protrusion, 42-second edge, 43-protrusion.

Detailed Description

In the embodiment of the invention, the liquid reservoir is connected with the pump body through the sliding rail, so that the assembly and the disassembly are convenient and quick, and the liquid reservoir is specifically described below.

As shown in fig. 1 to 13, the embodiment of the invention discloses an infusion pump, which comprises a liquid reservoir 1 and an infusion pump body 2, wherein the liquid reservoir 1 and the infusion pump body 2 are in an L shape as a whole, and the infusion pump body is connected with the liquid reservoir through a sliding rail connecting structure.

The slide rail connection structure comprises a guide rail 3 arranged on the middle side surface 16 of the liquid storage device and a track 4 arranged on the middle side surface 26 of the infusion pump body, wherein: the guide rail 3 and the rail 4 are engaged with each other so that the two can move relatively.

The guide rail 3 extends from the reservoir bottom surface 15 to the reservoir lower top surface 17; the track 4 extends from the infusion pump body high top surface 21 to the infusion pump body low top surface 27; the guide rail 3 is arc-shaped and has a first edge 32; the first edge 32 cooperates with the track 4 when the rail 3 slides relative to the track 4. The angle of the first edge 32 to a line perpendicular to the upper surface 11 of the reservoir is 0.5 deg. -5 deg., preferably 1.5 deg..

The end of the guide rail 3 near the lower top surface 17 of the reservoir is provided with a limiting piece 31, and the limiting piece 31 is positioned in a groove 33 between the guide rail 3 and the middle side surface 16 of the reservoir.

The guide rail 3 of the reservoir 1 is used for installing and fixing the reservoir 1 and the infusion pump body 2, fig. 5 is a front view of the reservoir, and as can be seen from fig. 5, an included angle a exists between the two guide rails 3 (the contact surface with the infusion pump body) of the reservoir and the vertical direction, the included angle a is 0.5-5 degrees, preferably 1.5 degrees, and the angle is convenient for mutually assembling with the infusion pump body. The bottom of the guide rail 3 of the reservoir 1 is provided with a limiting member 31, namely the position of the guide rail 3 near the low top surface 17 of the reservoir, when the reservoir 1 and the infusion pump body 2 are assembled, the reservoir 1 can move downwards along the track 4 of the infusion pump body 2, and when reaching the bottom, the limiting member 31 stops the reservoir 1 from continuing to move towards each other.

The rail 4 is provided with a projection 43 projecting inwards, the rail 4 having a second edge 42, the second edge 42 cooperating with the rail 3 when the rail 4 slides relative to the rail 3. The second edge 42 is angled from vertical by 0.5 deg. -5 deg., preferably 0.9 deg..

The track 4 is equipped with the chucking spare near infusion pump body low top surface 27 one end, and the chucking spare is with track 4 and guide rail 3 chucking in the bottom of track 4. The gripping members are protrusions 41 provided on the track 4.

The track 4 of the infusion pump body 2 is used for installing and fixing the liquid storage device 1 and the infusion pump body 2, fig. 8 is a front view of the infusion pump body, and as can be seen from fig. 8, an included angle exists between the two tracks 4 of the infusion pump body 2 (the contact surface with the liquid storage device) and the central line of the side surface 26 in the infusion pump body, the included angle is preferably 0.9 degree, and the included angle is convenient to mutually assemble with the infusion pump body 2. When the reservoir 1 and the infusion pump body 2 are assembled, the reservoir 1 moves downwards along the infusion pump body 2, and the infusion pump body 2 is connected with the reservoir 1 more and more tightly. The track 4 of the infusion pump body 2 is provided with clamping pieces at the position close to the lower top surface 27 of the infusion pump body; and when the clamping piece is fast to the end, the clamping piece is clamped with the contact curved surface of the liquid storage device 1, and the assembly of the guide rail part is completed.

The contact surface between the guide rail 3 of the liquid storage device and the track 4 of the infusion pump body is a curved surface, so that the insertion is convenient, in the insertion process, only part of the curved surface is contacted, a clamping piece is arranged at the bottom of the non-contact section of the track 4 of the infusion pump body 2, namely, the track 4 is close to the position of the low top surface 27 of the infusion pump body, and when the track 4 is fast to the bottom, the clamping piece is contacted with the guide rail 3 of the liquid storage device 1 and is clamped with the guide rail 3, so that the clamping piece is fastened and is not easy to disengage.

The assembly method of the infusion pump body 2 and the liquid reservoir 1 according to the embodiment of the invention is as follows: in the initial state of the infusion pump, the advancing sleeve is in the bottommost state. The medicine storage device is held by hand, the two guide rails of the medicine storage device are aligned with the track of the infusion pump, the medicine storage device is pushed downwards from the upper side, the guide rail 3 is clamped with the track 4, and the assembly of the guide rail part is completed.

According to the embodiment of the invention, when the liquid storage device and the infusion pump body are assembled, the two guide rails 3 of the liquid storage device 1 are aligned with the rails 4 of the infusion pump body and pushed in opposite directions, so that the two guide rails are clamped; the infusion pump of the embodiment of the invention is rapid and convenient.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives can occur depending upon design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. An infusion pump comprises a liquid reservoir (1) and an infusion pump body (2), and is characterized in that the infusion pump body (2) is connected with the liquid reservoir (1) through a sliding rail, wherein,

the side (16) in the liquid storage device is provided with a guide rail (3), the side (26) in the infusion pump body is provided with a track (4), and the guide rail (3) is meshed with the track (4) so that the guide rail and the track can move stably;

the bottom surface of the liquid reservoir is provided with an opening, and the screw rod enters the opening from the lower top surface of the infusion pump body.

2. Infusion pump according to claim 1, characterized in that the rail (3) extends from a reservoir bottom surface (15) to a reservoir lower top surface (17);

the rail (4) extends from the infusion pump body high top surface (21) to the infusion pump body low top surface (27).

3. Infusion pump according to claim 2, characterized in that the rail has a first edge (32);

when the guide rail (3) slides relative to the track (4), the first edge (32) is matched with the track (4).

4. An infusion pump according to claim 3, wherein the first edge (32) is at an angle in the range of 0.5 ° -5 ° to the centre line of the side (16) in the reservoir.

5. Infusion pump according to claim 4, characterized in that the end of the rail (3) near the reservoir lower top surface (17) is provided with a stop (31), which stop (31) is located in a groove (33) between the rail (3) and the reservoir middle side surface (16).

6. Infusion pump according to claim 1, characterized in that the rail (4) is provided with a protrusion (43) protruding inwards, the rail (4) being provided with a second edge (42);

the second edge (42) cooperates with the guide rail (3) when the rail (4) slides relative to the guide rail (3).

7. Infusion pump according to claim 6, characterized in that the second edge (42) is at an angle in the range of 0.5 ° -5 ° to the centre line of the side (26) in the infusion pump body.

8. Infusion pump according to claim 7, characterized in that the rail (4) is provided with a clamping member near the end of the infusion pump body lower top surface (27), which clamping member clamps the rail (4) with the guide rail (3) at the bottom end of the rail (4).

9. Infusion pump according to claim 8, characterized in that the gripping member is a protrusion (41) provided on the rail (4).