CN111298242A

CN111298242A - Injection instrument of subcutaneous anticoagulation needle with time delay function

Info

Publication number: CN111298242A
Application number: CN202010109272.0A
Authority: CN
Inventors: 王乐; 王阿迪
Original assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Priority date: 2020-02-22
Filing date: 2020-02-22
Publication date: 2020-06-19

Abstract

The invention relates to an injector, in particular to an injection instrument of a subcutaneous anticoagulant needle with a time delay function, which comprises a needle cylinder and a piston which is slidably arranged in the needle cylinder, wherein an automatic push-pull device is arranged above the needle cylinder, a motor is arranged on one side of the automatic push-pull device, the motor is in transmission torque with the automatic push-pull device through a transmission box, the motor is connected with a control box through a signal wire, and the control box controls the time delay action of the motor.

Description

Injection instrument of subcutaneous anticoagulation needle with time delay function

Technical Field

The invention relates to an injector, in particular to an injection instrument of a subcutaneous anticoagulation needle with a time delay function.

Background

In the clinical subcutaneous anticoagulation needle injection process, when an injection is injected around a navel eye, the patient needs to insert the needle for ten seconds, and stops inserting the needle for ten seconds before pulling the needle out.

Disclosure of Invention

The present invention is directed to a hypodermic anticoagulation needle injection device with time delay function, so as to solve the problems mentioned in the background art.

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

the utility model provides an injection instrument of anti-freezing needle in skin with time delay function, includes cylinder and slidable setting and is in the inside piston of cylinder, the top of cylinder is equipped with automatic push-pull ware one side of automatic push-pull ware is equipped with the motor, the motor pass through the transmission box with automatic push-pull ware transmission torque, the motor passes through signal line connection control box, control box control motor time delay action.

Preferably, the automatic push-pull device comprises a cylinder body, a lead screw and a plurality of guide rods which are arranged on two sides of the lead screw and parallel to the lead screw are vertically arranged in the cylinder body, a sliding block is further arranged in the cylinder body, two sides of the sliding block are penetrated through by the guide rods and can slide on the guide rods, lead screw nuts are arranged on the upper side and the lower side of the sliding block, the lead screw penetrates through the sliding block and the lead screw nuts and is in threaded connection with the lead screw nuts, a piston rod is connected to the bottom of the lead screw nuts located below, and the tail end of the piston rod extends out of the cylinder body and is fixed with the piston through a fixing plate.

Preferably, a gearwheel and a pinion are arranged in the transmission box, the gearwheel and the pinion are meshed with each other, the gearwheel is coaxially and fixedly connected with the top end of the lead screw, and the pinion is coaxially and fixedly connected with an output shaft of the motor.

Preferably, the circumference outer wall of cylinder is fixed with the second fixed disk, the circumference outer wall cover of cylinder body is equipped with first fixed disk, just first fixed disk with the second fixed disk passes through bolt cooperation nut locking fixed.

Preferably, be equipped with motor control circuit on the circuit board of control box, motor control circuit passes through the power cord and inserts three phase power, be equipped with two switches SB2 and SB3 on the control box to and respectively with two contactors KM1 and KM2 of SB2 and SB3 series connection, it has time relay KA1 to establish ties between KM1 and the SB2, it has time relay KA2 to establish ties between KM2 and SB 3.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the time relay is matched with the automatic push-pull device, and the manual anticoagulation needle injection action is replaced by intelligent and mechanical control, so that the stay time can be perfectly controlled by medical personnel during injection, the control is accurate, and the working efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall construction of the present invention;

FIG. 3 is a partial sectional view of the present invention;

FIG. 4 is a schematic view of a partial transmission configuration of the present invention;

FIG. 5 is a schematic circuit diagram of the present invention.

In the figure: the device comprises a needle cylinder 1, a piston 10, an automatic push-pull device 2, a cylinder body 20, a lead screw 21, a piston rod 22, a sliding block 23, a lead screw nut 230, a fixing plate 24, a guide rod 25, a transmission box 3, a large gear 30, a small gear 31, a motor 4, a control box 5, a first fixing disc 6 and a second fixing disc 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides an injection instrument of subcutaneous anti-coagulation needle with time delay function, includes cylinder 1 and slidable setting at the inside piston 10 of cylinder 1, and the top of cylinder 1 is equipped with automatic push-and-pull 2, is equipped with motor 4 in one side of automatic push-and-pull 2, and motor 4 passes through transmission box 3 and automatic push-and-pull 2 transmission torque, and motor 4 passes through signal line connection control box 5, and control box 5 controls motor 4 time delay action.

Specifically, the automatic push-pull device 2 includes a cylinder 20, a lead screw 21 and a plurality of guide rods 25 parallel to and penetrating through two sides of the lead screw 21 are vertically arranged inside the cylinder 20, a slider 23 is further arranged inside the cylinder 20, two sides of the slider 23 are penetrated through by the guide rods 25 and can slide on the guide rods 25, lead screw nuts 230 are respectively arranged on the upper side and the lower side of the slider 23, the lead screw 21 penetrates through the slider 23 and the lead screw nuts 230 and is in threaded connection with the lead screw nuts 230, a piston rod 22 is connected to the bottom of the lead screw nut 230 located below, the tail end of the piston rod 22 extends to the outside of the cylinder 20 and is fixed to the piston 10 through a fixing plate 24, when the lead screw 21 rotates, the rotary motion is converted into linear motion through a thread fit force of the lead screw nuts 230, the piston rod 22 is driven to move up and.

Furthermore, a large gear 30 and a small gear 31 are arranged in the transmission box 3, the large gear 30 and the small gear 31 are meshed with each other, the large gear 30 is coaxially and fixedly connected with the top end of the lead screw 21, the small gear 31 is coaxially and fixedly connected with an output shaft of the motor 4, and the motor 4 transmits torque to the lead screw 21 through transmission of the large gear 30 and the small gear 31 so as to provide power for rotation of the lead screw 21.

Secondly, the circumference outer wall of syringe 1 is fixed with second fixed disk 7, and the circumference outer wall cover of cylinder body 20 is equipped with first fixed disk 6, and first fixed disk 6 and second fixed disk 7 cooperate the nut locking through the bolt and fix for fix together syringe 1 and cylinder body 20.

In addition, a motor control circuit is arranged on a circuit board of the control box 5 and is connected to a three-phase power supply through a power line, two switches SB2 and SB3 are arranged on the control box 5, two contactors KM1 and KM2 which are respectively connected with SB2 and SB3 in series are arranged between KM1 and SB2, a KM2 time relay KA1 is connected in series between KM2 and SB3, a total power switch SB1 is arranged at the bottom of the control box 5, a power switch Q is turned on, a forward rotation button SB2 is pressed, the start is started after the time is delayed for 10 seconds under the action of the time relay KA1, a coil of the contactor KM1 is electrified and attracted, a main contact of the contactor is closed, a normally open auxiliary contact of the contactor is closed and is self-locked, and the motor rotates. At the moment, the phase sequence of the power supply connected with the motor is A-B-C, a reverse starting button SB3 is pressed, the starting is started after 10 seconds of delay under the action of a time relay KA2, at the moment, a normally closed contact of SB3 firstly disconnects a coil power supply of a forward contactor KM1, a normally open contact of a button SB3 is closed, a power supply of a coil of a reverse contactor KM2 is connected, KM2 is attracted, an auxiliary normally open contact is closed and self-locked, a main contact is closed, and the motor reversely rotates. The phase sequence of the power supply connected with the motor is C-B-A.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An injection instrument of subcutaneous anticoagulation needle with time delay function, includes cylinder (1) and slidable setting in piston (10) of cylinder (1) inside, its characterized in that: an automatic push-pull device (2) is arranged above the needle cylinder (1), a motor (4) is arranged on one side of the automatic push-pull device (2), the motor (4) is in torque transmission with the automatic push-pull device (2) through a transmission box (3), the motor (4) is connected with a control box (5) through a signal line, and the control box (5) controls the motor (4) to perform time delay action; the automatic push-pull device (2) comprises a cylinder body (20), a lead screw (21) and a plurality of guide rods (25) which are arranged on two sides of the lead screw (21) and parallel to the lead screw are vertically arranged in the cylinder body (20), a sliding block (23) is further arranged in the cylinder body (20), two sides of the sliding block (23) are penetrated through by the guide rods (25) and can slide on the guide rods (25), lead screw nuts (230) are arranged on the upper side and the lower side of the sliding block (23), the lead screw (21) penetrates through the sliding block (23) and the lead screw nut (230) and is in threaded connection with the lead screw nut (230), a piston rod (22) is connected to the bottom of the lead screw nut (230) located below, and the tail end of the piston rod (22) extends to the outside of the cylinder body (20) and is fixed with the piston (10) through a fixing plate (.

2. The injection apparatus with a time-lapse functional subcutaneous anticoagulation needle according to claim 1, characterized in that: a gearwheel (30) and a pinion (31) are arranged in the transmission box (3), the gearwheel (30) and the pinion (31) are meshed with each other, the gearwheel (30) is coaxially and fixedly connected with the top end of the lead screw (21), and the pinion (31) is coaxially and fixedly connected with an output shaft of the motor (4).

3. The injection apparatus for subcutaneous anticoagulation needle with time-lapse function according to claim 2, characterized in that: the circumference outer wall of cylinder (1) is fixed with second fixed disk (7), the circumference outer wall cover of cylinder body (20) is equipped with first fixed disk (6), just first fixed disk (6) with second fixed disk (7) are fixed through bolt cooperation nut locking.

4. The injection apparatus for subcutaneous anticoagulation needle with time-lapse function according to claim 3, characterized in that: be equipped with motor control circuit on the circuit board of control box (5), motor control circuit passes through power cord access three phase power, be equipped with two switches SB2 and SB3 on control box (5) to and two contactors KM1 and KM2 of establishing ties with SB2 and SB3 respectively, it has time relay KA1 to establish ties between KM1 and the SB2, it has time relay KA2 to establish ties between KM2 and SB 3.