CN213589393U

CN213589393U - Small-dose intravenous injection adjusting device

Info

Publication number: CN213589393U
Application number: CN202022269762.5U
Authority: CN
Inventors: 胡岳; 崔贵璞; 穆俊; 杜静雅
Original assignee: Tianjin First Central Hospital
Current assignee: Tianjin First Central Hospital
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-07-02
Anticipated expiration: 2030-10-13

Abstract

The utility model belongs to the technical field of medical treatment auxiliary device, concretely relates to small dose intravenous injection adjusting device, which comprises a housin, transmission case, propulsion piece and supporting shoe are installed to the up end of casing, the support groove that is used for placing the syringe is offered to the up end of supporting shoe, be provided with step motor and two drive screw in the transmission case, and two drive screw set up the both sides at step motor respectively, step motor's the output shaft outside has set firmly the initiative pinion, drive screw's the outside has set firmly driven gear wheel, and driven gear wheel meshes with the initiative pinion mutually, drive screw's one end extends to the outside of transmission case. The defects of the prior art are overcome, the stepping motor and the screw rod are matched to drive the pushing plate to move uniformly, so that the injector is driven to inject at a constant speed, the storage battery is arranged in the device, the use scene of the device is expanded, and the device is not limited by the length of a power line.

Description

Small-dose intravenous injection adjusting device

Technical Field

The utility model belongs to the technical field of medical treatment auxiliary device, concretely relates to small dose intravenous route adjusting device.

Background

At present, a novel medicine for treating heart failure and slowing down the ventricular rate appears in departments, the dose of each intravenous injection of the medicine is 10ml, the injection time is 5-10 minutes, and the latest foreign research shows that: this drug, if injected rapidly, poses a risk to patients with limited heart reserve, resulting in a rapid rise in arterial pressure. And when the nurse carries out the manual intravenous injection, the injection speed can not reach the uniform speed, certain risks can be brought to the patient, and time and labor are wasted.

The prior injection pump has the problem of unstable injection and cannot ensure uniform injection; meanwhile, the existing injection pump needs to be electrified through a power line, so that the use of the injection pump is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a small dose intravenous route adjusting device has overcome the not enough of prior art, utilizes the even motion of the cooperation drive propulsion board of step motor and screw rod to drive the at the uniform velocity injection of syringe, set up the battery in the device, extension device's use scene is not limited to the length of power cord.

In order to solve the above problems, the utility model adopts the following technical proposal:

a small-dose intravenous injection adjusting device comprises a shell, wherein a transmission case, a pushing block and a supporting block are mounted on the upper end face of the shell, a supporting groove for placing an injector is formed in the upper end face of the supporting block, a stepping motor and two transmission screws are arranged in the transmission case, the two transmission screws are respectively arranged on two sides of the stepping motor, a driving pinion is fixedly arranged on the outer side of an output shaft of the stepping motor, a driven bull gear is fixedly arranged on the outer side of the transmission screws, the driven bull gear is meshed with the driving pinion, one end of each transmission screw extends to the outer side of the transmission case and is rotatably connected with one end of the supporting block, the two transmission screws penetrate through a pushing plate, and the pushing plate is in threaded connection with the transmission screws;

the inside of casing is provided with a battery, one side of casing is provided with the mouth that charges, and the mouth that charges passes through the wire and is connected with the battery.

Furthermore, the supporting groove is of a semicircular structure, a circular baffle is fixedly arranged at one end, away from the pushing plate, of the supporting groove, and a through hole is formed in the center of the baffle in a penetrating mode.

Further, four corners of the lower end face of the pushing plate are respectively provided with a roller wheel, two sides of the upper end face of the shell are provided with sliding grooves, and the lower portions of the roller wheels are located in the sliding grooves.

Further, the radius ratio of the driving pinion to the driven bull gear is 1: (2-5).

Further, the surface of casing inlays and is equipped with the display screen, and one side of display screen installs the control knob that is used for controlling step motor rotational speed.

Furthermore, the transmission screw is provided with a rotary encoder for monitoring the rotating speed, and the output end of the rotary encoder is electrically connected with the display screen.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model relates to a small dose intravenous route adjusting device, through the even motion of step motor and screw rod drive propulsion board, thereby drive the injection of syringe at the uniform velocity, set up the battery in the device, expand the use scene of device, do not limit to the length of power cord; the rotation of the drive screw is monitored by a rotary encoder, so that the movement distance of the pushing plate is monitored.

Drawings

FIG. 1 is a schematic diagram of a low dose IV regulator.

Fig. 2 is an enlarged schematic view at a in a small dose intravenous administration set.

Figure 3 is a schematic view of the internal structure of the drive housing of a small dose intravenous administration set.

In the figure: 1. a housing; 2. a display screen; 3. a control knob; 4. a charging port; 5. a support block; 51. a placement groove; 52. a baffle plate; 53. a through hole; 6. a propulsion block; 61. a roller; 62. a chute; 7. a transmission case; 71. a drive screw; 72. a stepping motor; 73. a drive pinion; 74. a driven bull gear; 75. a rotary encoder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the present invention relates to a small dosage intravenous injection adjusting device, which comprises a housing 1, wherein a transmission case 7, a pushing block 6 and a supporting block 5 are installed on the upper end surface of the housing 1, a supporting groove for placing an injector is opened on the upper end surface of the supporting block 5, a stepping motor 72 and two transmission screws 71 are installed in the transmission case 7, the two transmission screws 71 are respectively installed on two sides of the stepping motor 72, a driving pinion 73 is fixedly installed on the outer side of the output shaft of the stepping motor 72, a driven gearwheel 74 is fixedly installed on the outer side of the transmission screws 71, the driven gearwheel 74 is meshed with the driving pinion 73, one end of the transmission screw 71 extends to the outer side of the transmission case 7 and is rotatably connected with one end of the supporting block 5, the two transmission screws 71 penetrate through a pushing plate, and the pushing plate is connected with the transmission;

the inside of casing 1 is provided with a battery, and one side of casing 1 is provided with charge mouthful 4, and charge mouthful 4 and be connected with the battery through the wire.

In order to fix the injector, the supporting groove is in a semicircular structure, a circular baffle plate 52 is fixedly arranged at one end of the supporting groove far away from the pushing plate, and a through hole 53 is arranged at the center of the baffle plate 52 in a penetrating manner.

In order to improve stability, four corners of the lower end surface of the pushing plate are respectively provided with a roller 61, two sides of the upper end surface of the shell 1 are provided with sliding grooves 62, and the lower parts of the rollers 61 are positioned in the sliding grooves 62.

For the convenience of propulsion, the ratio of the radius of the driving pinion 73 to the driven bull gear 74 is 1: (2-5); the driving gear 73 is stopped and the driven gear 74 is also stopped immediately by the gear meshing propulsion mode, so that relative motion cannot be generated; the rotating speed of the driven gearwheel 74 can be conveniently adjusted by the deceleration effect of the gears, and the device is suitable for small-dose injectors.

In order to facilitate the operation, the display screen 2 is embedded in the surface of the casing 1, and the control knob 3 for controlling the rotating speed of the stepping motor 72 is installed on one side of the display screen 2.

For monitoring convenience, a rotary encoder 75 for monitoring the rotating speed is installed on the transmission screw 71, and the output end of the rotary encoder 75 is electrically connected with the display screen 2.

To sum up, in the small-dose intravenous injection adjusting device of the present invention, when in use, the injector filled with the medicament is firstly placed in the placing groove 51, one end of the injector passes through the through hole 53, the wing plate on the injector at the other end is clamped at one end of the supporting block 5 far away from the baffle 52, and at this time, the pushing plate is abutted against the piston part of the injector; the injection speed is adjusted by the control knob 3, so that the stepping motor 72 is started to rotate, the two transmission screw rods 71 are driven to rotate in the same direction by the rotation of the driving small gear 73 and the driven large gear 74, the pushing plate drives the piston of the injector to move, and the liquid medicine in the injector is injected uniformly; during the injection process, the rotary encoder 75 monitors the rotation speed of the conveying screw, converts the rotation speed into the propelling speed of the propelling plate, and displays the propelling speed on the display screen 2, and a user can adjust the propelling speed according to information during the propelling process. Before use, the battery is fully charged through the charging port 4, and the circuit of the battery is displayed on the display screen 2.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A small dose intravenous adjustment device comprising a housing (1), characterized in that: the upper end surface of the shell (1) is provided with a transmission case (7), a propelling block (6) and a supporting block (5), the upper end surface of the supporting block (5) is provided with a supporting groove for placing an injector, a stepping motor (72) and two transmission screws (71) are arranged in the transmission case (7), and two transmission screws (71) are respectively arranged at two sides of the stepping motor (72), a driving pinion (73) is fixedly arranged on the outer side of an output shaft of the stepping motor (72), a driven bull gear is fixedly arranged on the outer side of the transmission screw rod (71), and the driven bull gear (74) is engaged with the driving pinion (73), one end of the transmission screw (71) extends to the outer side of the transmission box (7), the two transmission screws (71) penetrate through the pushing plate, and the pushing plate is connected with the transmission screws (71) in a threaded manner;

the novel solar charging device is characterized in that a storage battery is arranged inside the shell (1), a charging port (4) is arranged on one side of the shell (1), and the charging port (4) is connected with the storage battery through a conducting wire.

2. A small dose intravenous administration set as claimed in claim 1, further comprising: the supporting groove is of a semicircular structure, a circular baffle (52) is fixedly arranged at one end, away from the pushing plate, of the supporting groove, and a through hole (53) penetrates through the center of the baffle (52).

3. A small dose intravenous administration set as claimed in claim 1, further comprising: idler wheels (61) are respectively installed at four corners of the lower end face of the pushing plate, sliding grooves (62) are formed in two sides of the upper end face of the shell (1), and the lower portions of the idler wheels (61) are located in the sliding grooves (62).

4. A small dose intravenous administration set as claimed in claim 2 or 3, further comprising: the radius ratio of the driving small gear (73) to the driven large gear (74) is 1: (2-5).

5. A small dose intravenous administration set as claimed in claim 4, further comprising: the surface of casing (1) inlays and is equipped with display screen (2), and control knob (3) that are used for controlling step motor (72) rotational speed are installed to one side of display screen (2).

6. A small dose intravenous administration set as claimed in claim 5, further comprising: the rotary encoder (75) used for monitoring the rotating speed is installed on the transmission screw rod (71), and the output end of the rotary encoder (75) is electrically connected with the display screen (2).