CN216936789U

CN216936789U - Dispensing device for manufacturing blood pump

Info

Publication number: CN216936789U
Application number: CN202122794066.0U
Authority: CN
Inventors: 万传杨; 解启莲; 刘欢; 冯启涛; 巩郑
Original assignee: Anhui Tongling Bionic Technology Co Ltd
Current assignee: Anhui Tongling Bionic Technology Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-07-12
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the technical field of medical equipment, in particular to a dispensing device for manufacturing a blood pump; the blood pump motor automatic glue dispensing device comprises a base, wherein a moving mechanism for fixing and/or adjusting the posture of a blood pump motor and a glue dispenser for applying glue to the blood pump motor are arranged on the base; the utility model has the beneficial effects that: the utility model provides a dispensing device, for being connected between sensor optic fibre and the blood pump casing provides equipment support, through control dispensing device's gesture and cooperation relation, the operation is glued to completion point that can be better, has the advantage of control accurate, easy and simple to handle.

Description

Dispensing device for manufacturing blood pump

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a dispensing device for manufacturing a blood pump.

Background

Blood pumps, also known as mechanical blood circulation support devices or ventricular assist devices, may be introduced into the heart and may be configured to assist or replace natural heart pump function by circulatory pumping or continuous pumping of blood, providing hemodynamic support for cardiogenic shock and acute heart failure. For example, a blood pump supporting the left side of the heart may be introduced into the ascending aorta via the femoral artery by a catheterization procedure, passed through the aortic valve into the left ventricle, and pumps blood in the left ventricle into the aorta; a blood pump supporting the right side of the heart is deployed in the venous system to drain blood from the inferior or right atrium or superior vena cava into the pulmonary arteries.

Blood pumps are used to save lives of critically ill patients and their functioning depends on correct positioning in the heart. During insertion through a blood vessel, the tortuous path of the blood vessel and/or calcified structures of the organ may impede or damage the blood pump structure, rendering the blood pump inaccurate to introduce or operate. When a sensor (such as a pressure sensor) is introduced to the blood pump, the occurrence of the adverse condition can be improved, the sensor can receive important signals under the movement or working state of the blood pump and feed the important signals back to a doctor, the doctor can conveniently and accurately operate and convey the blood pump, and the efficient operation of the operation is guaranteed.

In general, sensors in blood pumps comprise optical fibers that extend from the blood pump catheter and over a pre-defined recess in the blood pump motor housing to and connect with a sensor head (including a sensor membrane) that is connected to the optical fibers. The quality of the connection between the optical fiber and the blood pump is related to the quality of the blood pump, and insufficient adhesion between the optical fiber and the blood pump shell can cause the sensor to break in the patient body and lose the signal indication. At present, the optical fiber and the blood pump shell are manually bonded, the coating amount, the coating position and the coating time of an adhesive are difficult to accurately grasp, and the non-uniformity of the coating standards makes the working result difficult to evaluate the overall reliability and the quality stability of a product.

Disclosure of Invention

The utility model aims to provide a dispensing device for manufacturing a blood pump, which comprises a base, wherein a moving mechanism for fixing and/or adjusting the posture of a motor of the blood pump and a dispensing device for applying glue solution to the motor of the blood pump are arranged on the base, a power mechanism drives the moving mechanism to move, and the posture adjusting mechanism adjusts the position and the posture of the dispensing device until the dispensing device is adjacent to or far away from the moving mechanism.

According to the preferable technical scheme, the moving mechanism comprises a screw rod and a sliding block which are coaxially arranged, the screw rod penetrates through a threaded hole in the middle of the sliding block and forms screw rod nut fit with the sliding block, the sliding block is clamped with a groove-shaped guide rail fixed on the base and forms sliding fit, and a power mechanism drives the screw rod to rotate to realize the linear reciprocating motion of the sliding block.

As an optimized technical scheme, one end of the screw rod is fixedly connected with the output end of the power mechanism, the other end of the screw rod is connected with a connecting frame fixed on the base, and the screw rod penetrates through a through hole in the connecting frame and forms radial limiting and circumferential rotation matching with the connecting frame.

As a preferred technical scheme, the sliding block is provided with a fixed clamping seat for fixing the blood pump motor, and at least 1 clamping seat is arranged at intervals or continuously along the length direction of the blood pump motor.

As preferred technical scheme, the point is glued the ware and is included the tubulose barrel, and the one end of barrel is uncovered form and constitutes threaded connection with the tube cap, is equipped with the connection mouth on the tube cap and links to each other with pressure controller through the pipeline, and the other end of barrel is equipped with the needle tubing, and needle tubing and connection mouth all have hollow structure, constitute the feed liquor/gas passageway of intercommunication barrel internal and external environment.

As a preferred technical scheme, the pressure controller is connected with an air compressor, and comprises a power supply module and a pressure control module for controlling the output flow, flow rate and time of the gas.

As a preferred technical scheme, the power mechanism is a motor fixed on the base, and the screw rod is connected with a power output shaft of the motor and realizes synchronous rotation.

As a preferred technical scheme, the motor is a stepping motor, the motor is electrically connected with a control system, and the control system comprises a power supply module, a speed regulating module and a control module which are integrated into a whole.

According to a preferable technical scheme, the posture adjusting mechanism comprises a support and a clamp, the support comprises a first handle rod hinged to a support through a hinged shaft, the first handle rod is connected with the clamp through a universal ball head, the support comprises a second handle rod hinged to the hinged shaft and a fixing seat fixedly connected with a base, and the second handle rod is connected with the fixing seat through the universal ball head.

Preferably, the first and second handles are in threaded connection with the hinge shaft, and locking structures are arranged between the first handle and the clamp and between the second handle and the fixed seat.

As a preferred technical scheme, the clamp is a crab clamp.

The utility model has the beneficial effects that: the utility model provides a dispensing device provides equipment support for being connected between sensor optic fibre and the blood pump casing, through control dispensing device's gesture and cooperation relation, the operation is glued to completion point that can be better, has the advantage of control accurate, easy and simple to handle.

Drawings

FIG. 1 is a schematic view of a prior art blood pump;

FIG. 2 is a schematic structural diagram of the motor of FIG. 1;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

fig. 4 is a system connection diagram according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the attached drawings, which are provided for illustrative purposes only and are not intended to limit the scope of the present invention.

Reference example

This reference example shows the structure of a blood pump as a reference for understanding the following embodiments.

Referring to fig. 1-2, a blood pump includes a catheter 101, a motor 102, a blood outflow cage 103, a cannula 104, a blood inflow cage 105, and a pigtail 106 coaxially arranged in series and forming a rod, the motor 102 housing having an elongated recess 1021 for passage of an optical fiber. In use, the cannula 104 may extend through the aortic valve such that blood flow into the cage 105 and the pigtail 106 is positioned in the left ventricle beyond the aortic valve, and under drive from the motor 102, blood in the left ventricle is pumped from the blood flow into the cage 105 to the blood pump and out of the blood flow out of the cage 103 through the cannula 104 into the aorta.

Examples

A dispensing device for manufacturing a blood pump comprises a base 10, a moving mechanism 20, a dispensing device 30, a power mechanism, a control system 50, a posture adjusting mechanism, a pressure controller 80 and an air compressor 90.

The base 10 comprises a connecting frame 11 fixedly connected with the base 10, and the base 10 is provided with a moving mechanism 20, a power mechanism and a posture adjusting mechanism.

The moving mechanism 20 is used for fixing and/or adjusting the posture of the blood pump motor 102, and comprises a screw rod 21, a slide block 22, a groove-shaped guide rail 23 and a fixed clamping seat 24; one end of the screw rod 21 is fixedly connected with the output end of the power mechanism, the other end of the screw rod 21 is connected with the connecting frame 11 fixed on the base 10, and the screw rod 21 penetrates through a through hole 111 in the connecting frame 11 and forms radial limiting and circumferential rotation fit with the connecting frame 11; the screw rod 21 and the slide block 22 are coaxially arranged, and the screw rod 21 penetrates through a threaded hole 221 in the middle of the slide block 22 and forms screw rod nut matching with the slide block 22; the sliding block 22 is clamped with a groove-shaped guide rail 23 fixed on the base 10 and forms sliding fit; the clamping seats 24 are used for fixing the posture of the blood pump motor 102 and driving the blood pump motor 102 to move synchronously, and the clamping seats 24 are arranged on the sliding block 22 and are at least 1 in interval or continuous arrangement along the length direction of the blood pump motor 102.

The glue dispenser 30 is used for applying glue solution to a blood pump motor 102 and comprises a tubular barrel 31, a tube cover 32, a connecting nozzle 33 and a needle tube 34, one end of the barrel 31 is in an open shape and is in threaded connection with the tube cover 32, the connecting nozzle 33 is arranged on the tube cover 32 and is connected with a pressure controller 80 through a pipeline, the needle tube 34 is arranged at the other end of the barrel 31, and the needle tube 34 and the connecting nozzle 33 both have hollow structures to form a liquid inlet/air passage communicated with the inside and outside environment of the barrel 31.

The power mechanism is used for driving the moving mechanism 20 to move, and specifically is a motor 40, such as a stepping motor, and a power output shaft of the motor is connected with the screw rod 21 and drives the screw rod 21 to rotate so as to realize the linear reciprocating motion of the slide block 22.

The control system 50 is used for controlling the turning on/off, the rotating speed and the steering of the motor, and comprises a first power module 51, a speed regulating module 52 and a control module 53 which are integrated into a whole, and provides a power source for the operation of the moving mechanism 20 through being electrically connected with the motor 40.

The posture adjusting mechanism is used for adjusting the position and the posture of the glue dispenser 30 until the glue dispenser 30 is close to or far away from the moving mechanism 20, and comprises a bracket 60 and a clamp 70, wherein the clamp 70 is, for example, a crab clamp, the bracket 60 comprises a first handle rod 62 hinged on a support through a hinge shaft 61, the first handle rod 62 is connected with the clamp 70 through a universal ball head, the support comprises a second handle rod 63 hinged with the hinge shaft 61 and a fixed seat 64 fixedly connected with the base 10, and the second handle rod 63 is connected with the fixed seat 64 through the universal ball head; the first and second handles 62, 63 are respectively in threaded connection with the hinge shaft 61, and locking structures are arranged between the first handle 62 and the clamp 70 and between the second handle 63 and the fixed seat 64.

The pressure controller 80 further controls the outflow quantity, outflow speed and outflow time of the glue solution of the glue dispenser 30 by controlling the pressure, the pressure duration and the pressure direction, and comprises a second power module 81 and a pressure control module 82 for controlling the output flow, flow speed and time of the gas, the pressure controller 80 is connected with an air compressor 90, and the air compressor 90 provides a power source for the pressure controller 80.

The working method and principle of the adhesive dispensing device are as follows:

when the blood pump motor 102 is used, the sensor optical fiber is placed in the groove 1021 on the shell of the blood pump motor 102 in advance, then the blood pump motor 102 is clamped in the clamping seat 24, the position of the posture adjusting mechanism is adjusted to one end, close to the optical fiber, of the needle head of the needle tube 34, the control system 50 and the pressure controller 80 are started, the motor 40 drives the screw rod 21 to rotate, and the needle tube 34 starts to discharge glue. In this way, the optical fiber and the blood pump motor 102 can travel along the direction opposite to the rotation of the screw thread on the screw rod 21 synchronously with the slide block 22 and the guide rail 23, and under the condition that the posture of the needle tube 34 is kept unchanged and the glue is uniformly discharged, the uniform coating at the connecting position of the optical fiber and the blood pump motor 102 can be realized.

The above description of the embodiments of the present invention is not intended to limit the present invention, and those skilled in the art may make various changes and modifications without departing from the spirit of the present invention, which should fall within the scope of the appended claims.

Claims

1. The utility model provides a adhesive deposite device for making blood pump which characterized in that: the blood pump motor glue dispensing device comprises a base (10), wherein a moving mechanism (20) used for fixing and/or adjusting the posture of a blood pump motor (102) and a glue dispenser (30) used for applying glue to the blood pump motor (102) are arranged on the base (10), a power mechanism drives the moving mechanism (20) to move, and the posture adjusting mechanism adjusts the position and the posture of the glue dispenser (30) until the glue dispenser (30) is close to or far away from the moving mechanism (20);

the moving mechanism (20) comprises a screw rod (21) and a sliding block (22) which are coaxially arranged, the screw rod (21) penetrates through a threaded hole (221) in the middle of the sliding block (22) and forms screw rod nut fit with the sliding block (22), the sliding block (22) is clamped with a groove-shaped guide rail (23) fixed on the base (10) and forms sliding fit, and a power mechanism drives the screw rod (21) to rotate to realize the linear reciprocating motion of the sliding block (22).

2. The dispensing device for manufacturing a blood pump according to claim 1, characterized in that: one end of the screw rod (21) is fixedly connected with the output end of the power mechanism, the other end of the screw rod (21) is connected with a connecting frame (11) fixed on the base (10), and the screw rod (21) penetrates through a through hole (111) in the connecting frame (11) and forms radial limiting and circumferential rotation matching with the connecting frame (11).

3. The dispensing device for manufacturing a blood pump according to claim 1, characterized in that: the sliding block (22) is provided with a fixed clamping seat (24) for fixing the blood pump motor (102), and at least 1 clamping seat (24) is arranged at intervals or continuously along the length direction of the blood pump motor (102).

4. The dispensing device for manufacturing a blood pump according to claim 1, characterized in that: the glue dispenser (30) comprises a tubular barrel (31), one end of the barrel (31) is open and is in threaded connection with a pipe cover (32), a connecting nozzle (33) is arranged on the pipe cover (32) and is connected with a pressure controller (80) through a pipeline, a needle tube (34) is arranged at the other end of the barrel (31), the needle tube (34) and the connecting nozzle (33) are both of a hollow structure, and a liquid/gas inlet passage for communicating the inside and the outside of the barrel (31) is formed.

5. The dispensing device for manufacturing a blood pump according to claim 4, wherein: the pressure controller (80) is connected with the air compressor (90), and the pressure controller (80) comprises a second power supply module (81) and a pressure control module (82) for controlling the output flow rate, flow rate and time of the gas.

6. The dispensing device for manufacturing a blood pump according to claim 1, characterized in that: the power mechanism is a motor (40) fixed on the base (10), and the screw rod (21) is connected with a power output shaft of the motor (40) to realize synchronous rotation.

7. The dispensing device for manufacturing a blood pump according to claim 1, characterized in that: the posture adjusting mechanism comprises a support (60) and a clamp (70), the support (60) comprises a first handle rod (62) hinged to a support through a hinged shaft (61), the first handle rod (62) is connected with the clamp (70) through a universal ball head, the support comprises a second handle rod (63) hinged to the hinged shaft (61) and a fixing seat (64) fixedly connected with the base (10), and the second handle rod (63) is connected with the fixing seat (64) through the universal ball head.

8. The dispensing device for manufacturing a blood pump according to claim 1, characterized in that: the first handle rod (62) and the second handle rod (63) are in threaded connection with the hinge shaft (61), and locking structures are arranged between the first handle rod (62) and the clamp (70) and between the second handle rod (63) and the fixed seat (64).

9. The dispensing device for manufacturing a blood pump according to claim 7 or 8, wherein: the clamp (70) is a crab clamp.