CN215309189U

CN215309189U - Transfusion flow regulator

Info

Publication number: CN215309189U
Application number: CN202121380095.6U
Authority: CN
Inventors: 曹艳芝
Original assignee: Fourth Medical Center General Hospital of Chinese PLA
Current assignee: Fourth Medical Center General Hospital of Chinese PLA
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-28
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to an infusion flow regulator, which comprises a valve body provided with a cavity, wherein a cover plate is sleeved on the valve body, a bolt is arranged on the inner side of the cover plate, the tail end of the bolt is provided with threads and penetrates into the cavity of the valve body, and the bolt can be screwed in and out in the cavity. When in transfusion operation, the connecting pipe of the transfusion device passes through the cavity of the valve body, and the sectional area of the connecting pipe of the transfusion device is changed by screwing in and out the bolt in the cavity of the valve body, so as to adjust the transfusion flow of the connecting pipe.

Description

Transfusion flow regulator

Technical Field

The utility model relates to the field of medical instruments, in particular to an infusion flow regulator.

Background

Intravenous infusion is a commonly used mode of administration in clinical therapy. The currently used intravenous infusion apparatus is composed of an infusion bottle containing an infusion solution, a bottle insertion needle inserted into a sealing cover of the infusion bottle and capable of instilling the infusion solution, an instillation chamber fixed at the lower end of the bottle insertion needle and capable of allowing the infusion solution to drip in the form of liquid drops, an infusion needle inserted into a vein, a connecting pipe connecting the instillation chamber and the infusion needle and serving as an infusion path, and an infusion flow regulator arranged in the middle of an infusion pipe and capable of regulating the infusion flow. Under the action of atmospheric pressure, the liquid in the infusion bottle flows into the drip chamber from the infusion tube, and when the pressure of the water column in the drip chamber is greater than the pressure of the vein in the body, the liquid in the infusion bottle flows into the vein from the infusion tube.

The clinical speed of infusion can directly affect the treatment effect and even the nursing safety. The most common clinical infusion flow regulator is a clamping roller type infusion regulator, which mainly comprises a wedge-shaped guide rail and a pulley, wherein an infusion catheter passes through the wedge-shaped guide rail and is extruded by the pulley, so that the cross-sectional area of a liquid flow channel of the infusion catheter is changed to regulate the infusion flow rate. Chinese patent CN 209900282U discloses an infusion regulating valve, the valve body has a channel in which a infusion tube is arranged, and one end of a regulating knob is telescopically inserted into the channel. The valve body is sleeved on the infusion catheter, and the adjusting knob is driven by the rotation of the wrench, so that the flow adjustment is more accurate and flexible.

The main regulating part of the prior infusion regulating valve or infusion regulator is arranged at one side along the infusion tube and close to the infusion tube, occupies space, is not convenient for accommodating the infusion tube and does not finely regulate the flow.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model improves the structure of the transfusion flow regulator in the prior art, and provides the transfusion flow regulator which comprises a valve body provided with a cavity, wherein a cover plate is sleeved on the valve body, a bolt is arranged on the inner side of the cover plate, the tail end of the bolt is provided with a thread and penetrates into the cavity of the valve body, and the bolt can be screwed in and out in the cavity.

As an improvement, the valve further comprises a first bevel gear with a hole in the center, one end of the bolt far away from the valve body is sleeved in the hole of the first bevel gear, one end of the bolt far away from the valve body is provided with at least one convex rib, the inner wall of the hole of the first bevel gear is provided with a limiting groove matched with the convex rib, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is sleeved on the valve body.

As a further improvement, the cover plate is provided with a limiting block which is abutted against the bolt.

As a further improvement, a rotating member is arranged on the second bevel gear, and the axis of the rotating member is overlapped with the axis of the second bevel gear.

As a further improvement, the edge of the rotating member is provided with a scale.

As a further improvement, the edge of the rotating member is provided with a thread.

When in transfusion operation, the connecting pipe of the transfusion device passes through the cavity of the valve body, and the sectional area of the connecting pipe of the transfusion device is changed by screwing in and out the bolt in the cavity of the valve body, so as to adjust the transfusion flow of the connecting pipe.

Drawings

FIG. 1 is a schematic diagram of an infusion flow regulator according to some embodiments;

fig. 2 is an enlarged view of a rotating member of the infusion flow regulator according to some embodiments.

Figure number and name: 1. the device comprises a valve body, 2, a cover plate, 3, a bolt, 4, a first bevel gear, 5, a second bevel gear, 6, a limiting block, 7, a rotating part, 8, a transfusion pipe, 701, scales, 702 and threads.

Detailed Description

The present invention will be explained in detail below with reference to the drawings and embodiments.

Example 1

The infusion flow regulator in this embodiment, the structure is as shown in fig. 1, including the valve body that is equipped with the cavity, the cover is equipped with the apron on the valve body, and the apron inboard is equipped with the bolt, and the end of bolt is equipped with the screw thread and penetrates in the cavity of valve body, and the bolt can be in the cavity precession and screw out. The infusion flow can be adjusted by screwing the bolt in and out of the cavity.

When in transfusion, the transfusion tube passes through the middle of the valve body of the transfusion flow regulator, the tail end of the bolt is screwed into the cavity of the valve body, the transfusion tube in the valve body is pressed to change the transfusion flow, and the transfusion flow can be regulated to zero from the designed maximum flow of the transfusion device.

Still including the center be equipped with porose first bevel gear, the one end that the valve body was kept away from to the bolt cup joints downthehole at first bevel gear, and the one end that the valve body was kept away from to the bolt is equipped with an at least protruding muscle, and the inner wall in first bevel gear's hole is equipped with and protruding muscle complex spacing groove, first bevel gear and second bevel gear meshing, and second bevel gear overlaps to be established on the valve body.

During infusion, the first bevel gear is driven by the rotation of the second bevel gear, the first bevel gear drives the bolt to rotate, the tail end of the bolt is screwed into the cavity of the valve body, and the infusion tube in the valve body is extruded to change the infusion flow.

The cover plate of the transfusion flow regulator is provided with a limiting block which is abutted against the bolt. The limiting block ensures that the first bevel gear is stable in position and is tightly meshed with the second bevel gear.

The second bevel gear is provided with a disk-shaped rotating part, the structure of the rotating part is shown in figure 2, when the infusion valve is used, the rotating part is rotated to drive the second bevel gear, the first bevel gear is driven by the rotation of the second bevel gear, the first bevel gear drives the bolt to rotate, the tail end of the bolt is screwed into the cavity of the valve body, and the infusion tube in the valve body is extruded to change the infusion flow.

Example 2

Unlike the previous embodiments, in the infusion flow regulator (not shown in the figures) according to the present embodiment, the edge of the rotary member is provided with a scale, preferably marked in units of milliliters of infusion per hour. The outward flange of rotating member is equipped with the screw thread, increases the frictional force between hand and the rotating member, facilitates the use.

The above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides an infusion flow regulator, includes the inside valve body that is equipped with the cavity, its characterized in that, the cover is equipped with the apron on the valve body, the apron inboard is equipped with the bolt, the end of bolt is equipped with the screw thread and penetrates in the cavity of valve body, the bolt can precession and screw-out in the cavity.

2. The infusion flow regulator according to claim 1, further comprising a first bevel gear having a hole at the center, wherein one end of the bolt away from the valve body is sleeved in the hole of the first bevel gear, at least one protruding rib is disposed at one end of the bolt away from the valve body, a limiting groove matched with the protruding rib is disposed on the inner wall of the hole of the first bevel gear, the first bevel gear is engaged with a second bevel gear, and the second bevel gear is sleeved on the valve body.

3. The infusion flow regulator of claim 2, wherein said cover plate is provided with a stopper against which said bolt abuts.

4. The infusion flow regulator according to claim 3, wherein said second bevel gear is provided with a rotating member, and an axis of said rotating member coincides with an axis of said second bevel gear.

5. The infusion flow regulator of claim 4, wherein said rotating member has a scale on its edge.

6. The infusate flow regulator of claim 5, wherein an edge of the rotating member is threaded.