Intermittent drug delivery analgesic pump with adjustable drug concentration

Abstract

The invention discloses an intermittent drug delivery analgesic pump with an adjustable drug concentration. The analgesic pump comprises a first lower shell, a drug storage assembly, a first upper shell, a second lower shell and a second upper shell, wherein the drug storage assembly is arranged above the first lower shell, the first upper shell is arranged above the drug storage assembly, the second lower shell is arranged at one side of the first lower shell, and the second upper shell is arranged above the second lower shell. The intermittent drug delivery analgesic pump with the adjustabledrug concentration has the advantages that the analgesic pump is scientific and reasonable, the use is safe and convenient, a first drug pumping bag is used for measuring the volume of anesthetic, asecond drug pumping bag is used for measuring the volume of physiological saline, a second squeezing assembly is used for squeezing the first drug pumping bag and the second drug pumping bag, and a pulse drug pumping bag is used for mixing the anesthetic and the physiological saline, thereby effectively achieving the adjustment and control over the anesthetic concentration, reducing the pain of apatient suffered during an operation, effectively controlling the drug delivery time during the operation, and reducing the work intensity of the medical staff.

Description

technical field

[0001] The invention relates to the technical field of medical devices, in particular to an intermittent drug analgesic pump with adjustable drug concentration. Background technique

[0002] At present, when performing painless childbirth or intraspinal surgery, it is often necessary to give an appropriate concentration of local anesthetics to the epidural. If the concentration of local anesthetics is too strong, the patient's motor function will be blocked, which will have a negative impact on the surgical effect, and the motor nerves will be damaged due to the operation. or affect the muscular contraction function of the parturient, leading to insufficient labor force, prolonged labor, and even failure of normal delivery to increase the chance of cesarean section. When the concentration of local anesthesia is too weak, it is likely that the sensory nerve block is incomplete, causing pain in the patient, or even severe pain leading to anesthesia failure. Du...

Examples

Embodiment 1

[0073] The concentration of the drug solution in the first drug solution bag 401 is 2% and the concentration of the drug solution in the second drug solution bag 402 is 1%, the volume of the first pump drug bag 403 is 1ml, and the volume of the second pump drug bag 404 is 1.5ml;

[0074] The preset time interval of the pulse administration is 90min, the volume of each administration is 9ml, and the administration concentration is 1.67%, then the first pump capsule 403 and the second pump capsule 404 are squeezed out of the medicine every 90min. The number of squeezes n of the liquid into the pulse pump medicine bag 405 1 and n 2 scale n 1 :n 2 =(e-b)c 2 : (a-e)c 1 = 3:1;

[0075] That is, the number of times n that the first pump drug capsule 403 is squeezed every 90 minutes 1 =(e-b)v / (a-b)c 1 = 6 times, the first pump medicine bag 403 enters the liquid medicine volume of the pulse pump medicine bag 405 as (e-b)v / (a-b)=6ml; the number of times n that the second pump me...

Embodiment 2

[0077] The drug solution concentration in the first drug solution bag 401 is 3% and the drug solution concentration in the second drug solution bag 402 is 1%, the volume of the first pump drug bag 403 is 1.5ml, and the volume of the second pump drug bag 404 The volume is 1.5ml;

[0078] The preset time interval of the pulse administration is 90min, the volume of each administration is 9ml, and the administration concentration is 1.56%, then the first pump capsule 403 and the second pump capsule 404 are squeezed out of the medicine every 90min. The number of squeezes n of the liquid into the pulse pump medicine bag 405 1 and n 2 scale n 1 :n 2 =(e-b)c 2 : (a-e)c 1 =2:1;

[0079] That is, the number of times n that the first pump drug capsule 403 is squeezed every 90 minutes 1 =(e-b)v / (a-b)c 1 = 4 times, the first pump medicine bag 403 enters the liquid medicine volume of the pulse pump medicine bag 405 as (e-b)v / (a-b)=6ml; the second pump medicine bag 404 is squeezed ti...

Embodiment 3

[0081] The drug solution concentration in the first drug solution bag 401 is 2% and the drug solution concentration in the second drug solution bag 402 is 0%, the volume of the first pump drug bag 403 is 1.5ml, and the volume of the second pump drug bag 404 The volume is 1ml;

[0082] The preset time interval of the pulse administration is 90min, the volume of each administration is 9ml, and the administration concentration is 0.59%, then the first pump capsule 403 and the second pump capsule 404 are squeezed out of the medicine every 90min. The number of squeezes n of the liquid into the pulse pump medicine bag 405 1 and n 2 scale n 1 :n 2 =(e-b)c 2 : (a-e)c 1 =4:3;

[0083] That is, the number of times n that the first pump drug capsule 403 is squeezed every 90 minutes 1 =(e-b)v / (a-b)c 1 = 4 times, the first pump medicine bag 403 enters the liquid medicine volume of the pulse pump medicine bag 405 as (e-b)v / (a-b)=6ml; the number of times n that the second pump medici...

technical field

[0001] The invention relates to the technical field of medical devices, in particular to an intermittent drug analgesic pump with adjustable drug concentration. Background technique

[0002] At present, when performing painless childbirth or intraspinal surgery, it is often necessary to give an appropriate concentration of local anesthetics to the epidural. If the concentration of local anesthetics is too strong, the patient's motor function will be blocked, which will have a negative impact on the surgical effect, and the motor nerves will be damaged due to the operation. or affect the muscular contraction function of the parturient, leading to insufficient labor force, prolonged labor, and even failure of normal delivery to increase the chance of cesarean section. When the concentration of local anesthesia is too weak, it is likely that the sensory nerve block is incomplete, causing pain in the patient, or even severe pain leading to anesthesia failure. Du...

Examples

Embodiment 1

[0073] The concentration of the drug solution in the first drug solution bag 401 is 2% and the concentration of the drug solution in the second drug solution bag 402 is 1%, the volume of the first pump drug bag 403 is 1ml, and the volume of the second pump drug bag 404 is 1.5ml;

[0074] The preset time interval of the pulse administration is 90min, the volume of each administration is 9ml, and the administration concentration is 1.67%, then the first pump capsule 403 and the second pump capsule 404 are squeezed out of the medicine every 90min. The number of squeezes n of the liquid into the pulse pump medicine bag 405 1 and n 2 scale n 1 :n 2 =(e-b)c 2 : (a-e)c 1 = 3:1;

[0075] That is, the number of times n that the first pump drug capsule 403 is squeezed every 90 minutes 1 =(e-b)v / (a-b)c 1 = 6 times, the first pump medicine bag 403 enters the liquid medicine volume of the pulse pump medicine bag 405 as (e-b)v / (a-b)=6ml; the number of times n that the second pump me...

Embodiment 2

[0077] The drug solution concentration in the first drug solution bag 401 is 3% and the drug solution concentration in the second drug solution bag 402 is 1%, the volume of the first pump drug bag 403 is 1.5ml, and the volume of the second pump drug bag 404 The volume is 1.5ml;

[0078] The preset time interval of the pulse administration is 90min, the volume of each administration is 9ml, and the administration concentration is 1.56%, then the first pump capsule 403 and the second pump capsule 404 are squeezed out of the medicine every 90min. The number of squeezes n of the liquid into the pulse pump medicine bag 405 1 and n 2 scale n 1 :n 2 =(e-b)c 2 : (a-e)c 1 =2:1;

[0079] That is, the number of times n that the first pump drug capsule 403 is squeezed every 90 minutes 1 =(e-b)v / (a-b)c 1 = 4 times, the first pump medicine bag 403 enters the liquid medicine volume of the pulse pump medicine bag 405 as (e-b)v / (a-b)=6ml; the second pump medicine bag 404 is squeezed ti...

Embodiment 3

[0081] The drug solution concentration in the first drug solution bag 401 is 2% and the drug solution concentration in the second drug solution bag 402 is 0%, the volume of the first pump drug bag 403 is 1.5ml, and the volume of the second pump drug bag 404 The volume is 1ml;

[0082] The preset time interval of the pulse administration is 90min, the volume of each administration is 9ml, and the administration concentration is 0.59%, then the first pump capsule 403 and the second pump capsule 404 are squeezed out of the medicine every 90min. The number of squeezes n of the liquid into the pulse pump medicine bag 405 1 and n 2 scale n 1 :n 2 =(e-b)c 2 : (a-e)c 1 =4:3;

[0083] That is, the number of times n that the first pump drug capsule 403 is squeezed every 90 minutes 1 =(e-b)v / (a-b)c 1 = 4 times, the first pump medicine bag 403 enters the liquid medicine volume of the pulse pump medicine bag 405 as (e-b)v / (a-b)=6ml; the number of times n that the second pump medici...

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