CN219307582U - Flow regulating device for analgesic pump - Google Patents

Abstract

The utility model relates to the technical field of medical appliances, in particular to a flow regulating device for an analgesic pump. The flow regulating device for the analgesic pump comprises a shell, wherein the surface of the shell is provided with an inlet and an outlet for a transfusion tube to pass through, and a flow regulating assembly for extruding the transfusion tube to regulate the flow of the transfusion tube is arranged in the shell. The advantages are that: the structure design is simple and reasonable, the flow of the infusion tube is regulated by pressing the infusion tube to different degrees, and the operation mode is simple and quick.

Description

Flow regulating device for analgesic pump

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a flow regulating device for an analgesic pump.

Background

Newly established fifth-day vital signs of the painful world health organization are increasingly being regarded as medical. The analgesic pump is a device for delivering anesthetic, and can relieve pain of people to a greater extent after the anesthetic is infused into the human body. Relief can be achieved by increasing the dose for varying degrees of pain, but large doses generally accelerate drug consumption.

At present, most of the analgesic pumps used do not have the function of adjusting the speed of conveying the liquid medicine, and part of the analgesic pumps with the adjusting function are realized by adopting complex circuit control or mechanical structures, so that the cost is high, and the analgesic pumps are not suitable for large-scale popularization.

Therefore, there is a lack of a low cost, adjustable, easy to operate analgesic pump flow regulation device.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a flow regulating device for an analgesic pump, which effectively overcomes the defects of the prior art.

The technical scheme for solving the technical problems is as follows:

a flow regulating device for an analgesic pump comprises a housing having an inlet and an outlet for a tubing, wherein a flow regulating assembly is mounted in the housing for squeezing the tubing to regulate its flow.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the flow regulating assembly comprises a pushing rod and a pushing assembly, wherein a resisting part is arranged in the shell, one side of the resisting part is slidably provided with the pushing rod, one end of the pushing rod is close to the resisting part, the infusion tube passes through the space between one end of the pushing rod and the resisting part, the pushing assembly is connected with the other end of the pushing rod and is used for driving the pushing rod to horizontally move close to or far away from the infusion tube, and accordingly one end of the pushing rod is used for extruding the infusion tube.

Further, an extrusion part is arranged at one end of the push rod, an arc-shaped recess matched with the infusion tube is arranged on the extrusion part, and one side of the infusion tube is nested in the recess.

Further, the pushing assembly comprises a cam and a torsion member, wherein the torsion member is assembled in the shell, part of the torsion member extends out of the shell, the cam is connected with the torsion member and is positioned at the other end of the pushing rod, and the torsion member is used for rotating under the action of external force and driving the cam to rotate, so that the cam pushes the pushing rod to horizontally move.

Further, the torque member includes a connection pad rotatably fitted in the housing, a knob fitted in one end middle portion of the connection pad and penetrating through a hole portion of the housing surface fitting, and a connection portion fitted in the other end middle portion of the connection pad and connected and fixed with one end of the cam.

Further, the connecting portion is a cylindrical member, a plurality of gear grooves are formed in the periphery of the connecting portion at intervals along the circumferential direction of the connecting portion, a gear shifting column is elastically mounted in the housing, the gear shifting column is perpendicular to the connecting portion and can elastically stretch out and draw back along the axial direction of the connecting portion, and one end of the gear shifting column extends into one of the gear grooves.

Further, a protective cover for opening or covering the knob is provided outside the housing.

Further, one end of the protective cover is hinged with one end of the shell, a shielding part matched with the knob is arranged on the cover body, and the protective cover can be turned over to be attached to the surface of the shell and cover the knob through the shielding part or turned over to be opened.

Further, the pushing component comprises a rotating component and a pressing plate, the rotating component is rotatably assembled in the shell, one end of the rotating component penetrates through a hole site matched with the surface of the shell, the pressing plate is arranged around the rotating component and is located in the shell, the pushing rod is perpendicular to the pressing plate, the other end of the pressing rod is in contact with or close to one end face of the pressing plate, a plurality of protruding extrusion structures are arranged on the pressing plate, or a plurality of recessed areas are arranged on the pressing plate, at intervals, along the circumferential direction of the pressing plate, at intervals, the extrusion structures or the recessed areas are in smooth transition with one end face of the pressing plate, the rotating component is used for rotating under the action of external force and driving the pressing plate to rotate, and the pressing rod is extruded through the protruding extrusion structures or the end faces in the rotating process of the pressing plate, so that the pressing rod slides close to and extrudes the infusion tube.

Further, the shell comprises two sub-shells which are spliced and combined with each other.

The beneficial effects of the utility model are as follows: the structure design is simple and reasonable, the flow of the infusion tube is regulated by pressing the infusion tube to different degrees, and the operation mode is simple and quick.

Drawings

Fig. 1 is a schematic structural view of a flow rate regulating device for an analgesic pump of the present utility model;

fig. 2 is a structural cross-sectional view of a flow rate adjusting device for an analgesic pump of the present utility model;

FIG. 3 is a schematic view of the push assembly of the flow regulating device for an analgesic pump of the present utility model;

FIG. 4 is a schematic view showing the configuration of the pushing assembly and pushing rod of the flow regulator for an analgesic pump according to the present utility model;

fig. 5 is a schematic structural view of a push rod in the flow rate adjusting device for an analgesic pump according to the present utility model;

fig. 6 is a schematic structural view of the connection part of the flow regulator for the analgesic pump cooperating with the shift column;

fig. 7 is a schematic view showing the structure of another embodiment of the pressing assembly in the flow rate adjusting device for an analgesic pump of the present utility model;

fig. 8 is a schematic structural view of another embodiment of the flow rate regulating device for an analgesic pump of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a housing; 2. an infusion tube; 3. a flow regulating assembly; 11. a resisting part; 12. a shift column; 13. a protective cover; 14. a sub-housing; 31. pushing the pressing rod; 32. a pushing assembly; 131. a shielding part; 311. an extrusion part; 321. a cam; 322. a torsion member; 323. a rotating member; 324. a pressure plate; 3221. a connecting disc; 3222. a knob; 3223. a connection part; 32231. a gear slot.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Examples: as shown in fig. 1, the flow rate regulating device for an analgesic pump of the present embodiment comprises a housing 1, an inlet and an outlet for a fluid line 2 to pass through are provided on a surface of the housing 1, and a flow rate regulating member 3 for squeezing the fluid line 2 to regulate a flow rate thereof is provided in the housing 1.

The use process is as follows:

the infusion tube 2 connected with the analgesic pump passes through the whole flow regulating device, specifically, the infusion tube 2 passes through the inlet and the outlet on the surface of the shell 1, then, the compression degree of one section of the infusion tube 2 positioned in the shell 1 is regulated by the flow regulating component 3 arranged in the shell 1, so that the purpose of regulating the flow of the infusion tube 2 is achieved, the whole device is simple and reasonable in structural design, and the regulation of the flow of the infusion tube is realized by compressing the infusion tube to different degrees, and the operation mode is simple and quick.

As a preferred embodiment, as shown in fig. 2, the flow rate adjusting unit 3 includes a push rod 31 and a push unit 32, the housing 1 is provided with a stopper 11, one side of the stopper 11 is slidably provided with the push rod 31, one end of the push rod 31 is close to the stopper 11, the infusion tube 2 passes through between one end of the push rod 31 and the stopper 11, and the push unit 32 is connected to the other end of the push rod 31 to push the push rod 31 horizontally toward or away from the infusion tube 2, so that one end of the push rod 31 presses the infusion tube 2.

In the above embodiment, the pushing rod 31 is slidably assembled in the housing 1 and moves along a straight line, and since the section of the infusion tube 2 located in the housing 1 is located between the resisting portion 11 in the housing 1 and one end of the pushing rod 31, when the pushing assembly 32 drives the pushing rod 31 to move linearly, the pushing rod 31 presses the infusion tube 2, and as the moving position of the pushing rod 31 changes, the pressing degree of the infusion tube 2 changes accordingly, so as to achieve the purpose of multi-stage adjustment of the flow rate of the infusion tube 2, the overall design is simpler, and the operation and use are convenient.

Generally, a straight-bar-shaped slide adapted to the push rod 31 is provided in the housing 1, and the push rod 31 may be slidably fitted in the slide.

As a preferred embodiment, as shown in fig. 5, a pressing portion 311 is provided at one end of the pressing rod 31, the pressing portion 311 is provided with an arc-shaped recess adapted to the infusion tube 2, and one side of the infusion tube 2 is nested in the recess.

In the above embodiment, the extruding part 311 is designed into a shape adapted to the outer contour of the infusion tube 2, specifically, the extruding part 311 is designed into an arc-shaped concave structure, which is wrapped on the outer surface of one side of the infusion tube 2, along with the movement of the pushing rod 31, the extruding force is applied to the infusion tube 2, the infusion tube 2 is pressed to achieve the purpose of adjusting the flow, the arc-shaped concave structure is more adapted to the infusion tube 2, the extrusion to the infusion tube 2 is more uniform during the extrusion process, and the flow adjusting effect is better and more accurate.

In this embodiment, the pushing assembly 32 includes at least two different shapes:

1) As shown in fig. 3 and 4, the pushing assembly 32 includes a cam 321 and a torsion member 322, the torsion member 322 is assembled in the housing 1, a portion of the torsion member extends out of the housing 1, the cam 321 is connected to the torsion member 322 and is located at the other end of the pushing rod 31, and the torsion member 322 is configured to rotate under an external force and drive the cam 321 to rotate, so that the cam 321 pushes the pushing rod 31 to horizontally move.

In the above embodiment, the torsion member 322 is rotatably assembled with the housing 1, and the torsion member 322 is partially exposed outside the housing 1, when an external force is applied to the torsion member 322 to rotate, no torsion member 322 drives the cam 321 to rotate, and the cam 321 extrudes the push rod 31 through its outer edge to move towards the direction of the infusion tube 2 during rotation, so that the push rod 31 is forced to move horizontally, and the whole cam 321 rotates for a circle to enable the extrusion part 311 at one end of the push rod 31 to move from a state just contacting the infusion tube 2 to extrusion for maximizing the infusion tube 2, so that the design is simpler and more reasonable.

It should be noted that, when the most protruding outer edge of the cam 321 contacts the other end of the pushing rod 31, the pushing rod 31 is at the maximum horizontal movement position, the pressing force on the infusion tube 2 is the maximum, and when the cam 321 rotates to the most protruding outer edge and slides over the other end of the pushing rod 31, the infusion tube 2 begins to rebound due to its deformation capability, and at the same time, the infusion tube 2 will rebound to push the pushing rod 31 to move reversely and gradually return.

In this embodiment, the other end of the push rod 31 is designed as an arc end adapted to the cam 321, and during the rotation of the cam 321, the outer edge of the cam 321 contacts the arc end at the other end of the push rod 31 and forces the push rod 31 to move linearly.

As a preferred embodiment, as shown in fig. 3 and 4, the torsion member 322 includes a connection disc 3221, a knob 3222 and a connection part 3223, the connection disc 3221 is rotatably assembled in the housing 1, the knob 3222 is assembled at one end middle part of the connection disc 3221 and passes through a hole site adapted to the surface of the housing 1, and the connection part 3223 is assembled at the other end middle part of the connection disc 3221 and is fixedly connected with one end of the cam 321.

In the above embodiment, the design of the connection disc 3221 is convenient to form a stable rotary connection structure with the housing 1, the knob 3222 is located outside the housing 1, and external force is conveniently applied to the knob 3222 to enable the knob 3222 to rotate, so that the whole flow regulating assembly 3 is driven to operate.

As a preferred embodiment, as shown in fig. 1 and 6, the connecting portion 3223 is a cylindrical member, a plurality of gear grooves 32231 are formed on the outer circumference thereof at intervals along the circumferential direction thereof, the gear shift column 12 is elastically mounted in the housing 1, the gear shift column 12 is perpendicular to the connecting portion 3223 and elastically stretches along the axial direction thereof, and one end of the gear shift column 12 is inserted into one of the gear grooves 32231.

In the above embodiment, the gear groove 32231 is reasonably designed, a shift column 12 that moves telescopically is disposed in the housing 1 along the radial direction of the connecting portion 3223, in a conventional state, one end (i.e., the telescopic end) of the shift column 12 is embedded into one of the gear grooves 32231, during the rotation process of the knob 3222 driving the connecting disc 3221 and the connecting portion 3223, the shift column 12 continuously slides out of the gear groove 32231 and continuously slides into the next gear groove 32231, and when entering the gear groove 32231, physical collision sounds are generated, and each gear groove 32231 represents a gear with different compression degrees of the infusion tube 2, so that the current compression degree of the infusion tube 2 can be clearly identified through the design of the gear, thereby achieving the purpose of intuitively adjusting the flow.

What needs to be stated is: the cam 321 is far away from one end of the knob 3222 and is provided with a blind hole, the blind hole extends to one end of the connecting portion 3223, a cylinder (indicated by a in the figure) extending into the blind hole is arranged in the shell 1, the center line of the blind hole is collinear with the center of the connecting portion 3223 and the rotation center of the cam 321, the blind hole is sleeved on the cylinder, and the bottom of the hole abuts against the upper end of the cylinder and is in rotary fit with the cylinder.

In the above embodiment, a through hole matched with the gear shift column 12 is provided in the casing 1, the gear shift column 12 extends into the through hole, one end of the gear shift column 12 is exposed and forms a telescopic end of the gear shift column 12, a spring is sleeved on the gear shift column 12, an annular step is provided at the periphery of one end of the gear shift column 12, and two ends of the spring respectively prop against the step and the hole bottom of the through hole.

As a preferred embodiment, as shown in fig. 1 and 2, a shield 13 for opening or covering the knob 3222 is provided outside the housing 1.

In the above embodiment, since the knob 3222 is located outside the housing 1, when the push rod 31 is driven to move to press the infusion tube 2 by the rotation operation of the knob 3222, the knob 3222 can be covered by covering the protective cover 13, so as to prevent misoperation.

As a preferred embodiment, one end of the protective cover 13 is hinged to one end of the housing 1, a shielding portion 131 adapted to the knob 3222 is provided on the cover body, and the protective cover 13 may be turned over to be attached to the surface of the housing 1, and the knob 3222 is covered by the shielding portion 131, or turned over to be opened.

In the above embodiment, the protection cover 13 adopts a hinged turnover structure, so that the protection cover is convenient to open and close, meanwhile, the whole protection cover 13 is designed to be flat, the knob 3222 is covered by the protruding shielding part 131 arranged on the knob 3222 in an adapting way, and the whole structure design is more reasonable.

Of course, the protection cover 13 may be a cover body with a "self-locking" function, specifically, a self-locking component may be disposed at a corresponding position on the other end of the protection cover 13 and the housing 1, when the protection cover 13 is turned over to be attached to the surface of the housing 1 and covers the knob 3222, the self-locking component is locked, so that the protection cover 13 cannot be turned over and opened easily, and the self-locking component may be configured as a pair of magnets that are mutually adsorbed, or a miniature lock.

2) As shown in fig. 7 and 8, the pressing assembly 32 includes a rotating member 323 and a pressing plate 324, wherein the rotating member 323 is rotatably mounted in the housing 1, one end of the rotating member 323 passes through a hole position adapted to the surface of the housing 1, the pressing plate 324 is disposed around the rotating member 323 and is located in the housing 1, the pressing rod 31 is perpendicular to the pressing plate 324, the other end of the pressing rod 31 is in contact with or close to an end surface of the pressing plate 324, a pressing structure with a plurality of protrusions is disposed at intervals along a circumferential direction of the end surface of the pressing plate 324 close to the pressing rod 31, or a plurality of recessed areas are disposed at intervals, the pressing structure or recessed areas smoothly transition with an end surface of the pressing plate 324, the rotating member 323 is used for rotating under an external force and driving the pressing plate 324 to rotate, and the pressing rod 31 is pressed by the protruding pressing structure or the end surface during the rotation of the pressing plate 324, so that the pressing rod 31 slides close to and presses the infusion tube 2.

In the above scheme 2), the rotating component 323 and the pressure plate 324 are designed as a whole, a protruding (fan-shaped) extrusion structure or a multi-section (fan-shaped) concave area is arranged at one end face of the pressure plate 324 along the circumferential interval, in the operation process, the rotating component 323 exposes the part of the shell 1 to drive the rotation of the pressure plate 324, and then drives the pressure plate 324 to rotate together, and in the rotation process, the one end face of the pressure plate is an interval bulge, so that in the rotation process, the interval bulge (the extrusion structure or the non-concave area of the end face is indicated by c in the figure) can intermittently extrude the push rod 31, so that the push rod 31 is pushed to slide to extrude the infusion tube 2 to different degrees, thereby achieving the purpose of adjusting the flow of the infusion tube 2, the high and low pressures of the multi-section extrusion structure or the multi-section non-concave area can be designed to be inconsistent, so that the push rod 31 can be pushed to move to extrude the infusion tube 2 to different degrees through each section of extrusion structure or the non-concave area in the rotation process, thereby achieving the effect of adjusting the different flow of the infusion tube 2, the whole design is very ingenious, and the design is compact.

Of course, on the basis of the embodiment 2), a cover for covering the exposed portion of the rotating member 323 may be designed on the surface of the housing 1 in the embodiment 1).

The rotary part 323 can be a cylindrical knob, and the corresponding pressure plate 324 is designed as a disk coaxial with the rotary part 323.

In this embodiment, the rotary connection between the rotary member 323 and the housing 1 is a conventional connection manner in a mechanical structure, and a rotating shaft may be disposed at an end portion of the rotary member 323 extending into the housing 1, and the rotating shaft may be rotationally connected with the housing 1.

As a preferred embodiment, the housing 1 includes two sub-housings 14 that are spliced and combined with each other.

In the above embodiment, the housing 1 adopts a spliced structure, and generally includes two sub-housings 14 disposed at an upper-lower interval, and the upper sub-housing 14 and the lower sub-housing 14 are engaged with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A flow regulating device for an analgesic pump, characterized by: the infusion tube comprises a shell (1), wherein an inlet and an outlet for the infusion tube (2) to pass through are formed in the surface of the shell (1), and a flow regulating assembly (3) for extruding the infusion tube (2) to regulate the flow of the infusion tube is arranged in the shell (1).

2. A flow regulating device for an analgesic pump as claimed in claim 1 wherein: the flow regulating assembly (3) comprises a pushing rod (31) and a pushing assembly (32), a resisting part (11) is arranged inside the shell (1), the pushing rod (31) is slidably arranged on one side of the resisting part (11), one end of the pushing rod (31) is close to the resisting part (11), the infusion tube (2) passes through the space between one end of the pushing rod (31) and the resisting part (11), the pushing assembly (32) is connected with the other end of the pushing rod (31) and used for driving the pushing rod (31) to horizontally move close to or far away from the infusion tube (2), and one end of the pushing rod (31) extrudes the infusion tube (2).

3. A flow regulating device for an analgesic pump as claimed in claim 2 wherein: one end of the pushing rod (31) is provided with an extrusion part (311), the extrusion part (311) is provided with an arc-shaped concave matched with the infusion tube (2), and one side of the infusion tube (2) is nested in the concave.

4. A flow regulating device for an analgesic pump as claimed in claim 2 wherein: the pushing component (32) comprises a cam (321) and a torsion piece (322), the torsion piece (322) is assembled in the shell (1), part of the torsion piece extends out of the shell (1), the cam (321) is connected with the torsion piece (322) and is positioned at the other end of the pushing rod (31), and the torsion piece (322) is used for rotating under the action of external force and driving the cam (321) to rotate, so that the cam (321) pushes the pushing rod (31) to horizontally move.

5. A flow regulating device for an analgesic pump as claimed in claim 4 wherein: the torsion piece (322) comprises a connecting disc (3221), a knob (3222) and a connecting part (3223), wherein the connecting disc (3221) is rotatably assembled in the shell (1), the knob (3222) is assembled in the middle of one end of the connecting disc (3221) and penetrates through a hole site of the surface adaptation of the shell (1), and the connecting part (3223) is assembled in the middle of the other end of the connecting disc (3221) and is fixedly connected with one end of the cam (321).

6. A flow regulating device for an analgesic pump as claimed in claim 5 wherein: the connecting portion (3223) is a cylindrical member, a plurality of gear grooves (32231) are formed in the periphery of the connecting portion at intervals along the circumferential direction of the connecting portion, the gear shifting column (12) is elastically installed in the shell (1), the gear shifting column (12) is perpendicular to the connecting portion (3223) and can elastically stretch out and draw back along the axial direction of the connecting portion, and one end of the gear shifting column (12) stretches into one of the gear grooves (32231).

7. A flow regulating device for an analgesic pump as claimed in claim 5 wherein: a protective cover (13) for opening or covering the knob (3222) is arranged outside the shell (1).

8. A flow regulating device for an analgesic pump as claimed in claim 7 wherein: one end of the protective cover (13) is hinged with one end of the shell (1), a shielding part (131) matched with the knob (3222) is arranged on the cover body, and the protective cover (13) can be turned over to be attached to the surface of the shell (1) and cover the knob (3222) through the shielding part (131) or turned over to be opened.

9. A flow regulating device for an analgesic pump as claimed in claim 2 wherein: the pushing component (32) comprises a rotating component (323) and a pressing plate (324), the rotating component (323) is rotatably assembled in the shell (1), one end of the rotating component passes through a hole site matched with the surface of the shell (1), the pressing plate (324) is annularly arranged around the rotating component (323) and is positioned in the shell (1), the pushing rod (31) is perpendicular to the pressing plate (324), the other end of the pushing rod is contacted with or close to one end face of the pressing plate (324), the pressing plate (324) is close to one end face of the pushing rod (31) and is provided with a multi-section protruding pressing structure along the circumferential interval of the pressing rod, or a multi-section recessed area is arranged at intervals, the pressing structure or the recessed area is in smooth transition with one end face of the pressing plate (324), the rotating component (323) is used for rotating under the action of an external force and driving the pressing plate (324) to rotate, and the pressing rod (31) is pressed through a protruding pressing structure or an end face in the rotating process, so that the pressing rod (31) slides to be close to and presses the infusion tube (2).

10. A flow regulating device for an analgesic pump as claimed in any one of claims 1 to 9 wherein: the shell (1) comprises two sub-shells (14) which are spliced and combined with each other.

Images