CN116899051A - Injection pump and drug delivery system - Google Patents

Injection pump and drug delivery system Download PDF

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Publication number
CN116899051A
CN116899051A CN202311059935.2A CN202311059935A CN116899051A CN 116899051 A CN116899051 A CN 116899051A CN 202311059935 A CN202311059935 A CN 202311059935A CN 116899051 A CN116899051 A CN 116899051A
Authority
CN
China
Prior art keywords
syringe pump
housing
bracket
screw
push rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311059935.2A
Other languages
Chinese (zh)
Inventor
王伊龙
王拥军
杨沫
刘向荣
谢晗
陈鹤
黄山云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Tiantan Hospital
Original Assignee
Beijing Tiantan Hospital
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Tiantan Hospital filed Critical Beijing Tiantan Hospital
Priority to CN202311059935.2A priority Critical patent/CN116899051A/en
Publication of CN116899051A publication Critical patent/CN116899051A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/2006—Having specific accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M2005/31588—Constructional features or modes of drive mechanisms for piston rods electrically driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/088—Supports for equipment on the body

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The application provides an injection pump, which comprises a shell, a power module, a driving mechanism and an injector, wherein the shell is provided with a first cavity; the injector comprises a push rod and a medicine bag, the medicine bag is provided with a medicine flow channel, a first end of the push rod is inserted into the medicine bag, and a second end of the push rod is connected with the driving mechanism; the power module and the driving mechanism are positioned on the same side in the shell, and the injector is positioned on the other side, opposite to the power module and the driving mechanism, in the shell; the power supply module and the medicine bag are positioned on the same side in the shell; the power supply module is used for supplying power to the driving mechanism; the driving mechanism is used for driving the push rod to move. The application is beneficial to miniaturization and light weight of the injection pump.

Description

Injection pump and drug delivery system
Technical Field
The application relates to the technical field of medical equipment, in particular to an injection pump and an administration system.
Background
In medical clinical practice, bone marrow administration has been widely used. For example, bone marrow infusion access has proven to be a safe, efficient way of administering infusions and even blood transfusions during cardiopulmonary resuscitation for patients who cannot quickly establish peripheral intravenous infusion access. Recently, administration through bone marrow of the skull is also a comparatively large direction of neurosurgery, and the way of opening the skull is also verified, but the administration way occurring on bone marrow of the skull is not mature. For example, conventional bone marrow administration is not suitable for skull bone marrow, and traditional puncture methods are not properly controlled and are prone to brain tissue damage; the drug delivery device cannot be left in the patient, and the patient suffers repetitive pain during the course of a long period of administration; the skull is not sutured after opening, and the open administration is easy to cause wound bacterial infection. In addition, the existing drug delivery device is too large in size and is not beneficial to skull bone marrow drug delivery.
Disclosure of Invention
The application provides an injection pump and a drug delivery system, which are beneficial to realizing skull bone marrow drug delivery.
In a first aspect, the present application provides a syringe pump comprising a housing, a power module, a drive mechanism, and a syringe; the injector comprises a push rod and a medicine bag, the medicine bag is provided with a medicine flow channel, a first end of the push rod is inserted into the medicine bag, and a second end of the push rod is connected with the driving mechanism; the power module and the driving mechanism are positioned on the same side in the shell, and the injector is positioned on the other side, opposite to the power module and the driving mechanism, in the shell; the power supply module and the medicine bag are positioned on the same side in the shell; the power supply module is used for supplying power to the driving mechanism; the driving mechanism is used for driving the push rod to move. According to the injection pump provided by the application, the power supply module and the driving mechanism are positioned on the same side in the shell, the injector is positioned on the other side opposite to the power supply module and the driving mechanism in the shell, and the power supply module and the medicine bag of the injector are positioned on the same side in the shell, so that all parts in the injection pump shell are more compact, and the miniaturization and the light weight of the injection pump are facilitated.
In one possible implementation, the drive mechanism includes a motor and a ball screw; the motor is used for driving the screw rod of the ball screw rod to rotate; the ball of the ball screw is connected with the second end of the push rod.
In one possible implementation, the drive mechanism further includes a bracket mounted to the inner surface of the housing, and the motor and lead screw are mounted to the bracket.
In one possible implementation, the two ends of the screw are mounted on a bracket, and the screw is suspended on the inner surface of the shell; the output shaft of the motor is parallel to the screw rod.
In one possible implementation, the drive mechanism further comprises a guide bar parallel to the lead screw; two ends of the guide rod are arranged on the bracket, and the guide rod is suspended on the inner surface of the shell; the first end of ball is connected with the lead screw, and the second end of ball is connected with the second end of push rod, is equipped with the guiding hole between the first end of ball and the second end, and the guiding hole is worn to locate by the guiding rod.
In one possible implementation, the bracket is provided with a first mounting hole, the housing is provided with a first mounting post, and the first mounting hole on the bracket is matched with the first mounting post on the housing, so that the bracket is mounted on the inner surface of the housing.
In one possible implementation, the syringe pump further comprises a control module for controlling the syringe pump administration.
In one possible implementation, the control module is further configured to receive a human morbidity signal from the sensor and control administration of the syringe pump according to the human morbidity signal.
In one possible implementation, the control module includes a circuit board provided with a second mounting hole, and the housing is further provided with a second mounting post, and the second mounting hole on the circuit board is matched with the second mounting post on the housing, so that the circuit board is mounted above the power module and/or the driving mechanism.
In a second aspect, the present application provides a drug delivery system, comprising a base, an indwelling needle and a syringe pump according to any one of the first aspect, wherein the base is configured to be mounted on a human body, the base is detachably connected to the syringe pump, and a drug output from the syringe pump is delivered to a bone marrow cavity of the human body through the indwelling needle. According to the drug delivery system provided by the application, the drug output by the injection pump is delivered to the marrow cavity of a human body through the retaining needle, and the retaining needle can be retained in the marrow cavity, so that the need of re-puncture for each drug delivery is avoided; and the base is detachably connected with the injection pump, so that the injection pump is convenient to install and detach.
In a third aspect, the present application provides a drug delivery system comprising a base for mounting on a person and a syringe pump according to any one of the first aspects, the base being detachably connectable to the syringe pump, the base comprising an indwelling needle for insertion into a bone marrow cavity, the indwelling needle being adapted to be connected to a drug flow path of the syringe pump. The application provides a drug delivery system, which comprises a base arranged on a human body, wherein the base comprises an indwelling needle for being inserted into a bone marrow cavity; when in administration, the injection pump is connected with the base, and the medicine runner of the injection pump is connected with the indwelling needle on the base, and the medicine sequentially passes through the medicine runner and the indwelling needle to reach the marrow cavity, so that the administration of marrow is completed. Because the base is arranged on the human body, namely the indwelling needle of the base is reserved in the marrow cavity, the need of re-puncture for each administration is avoided. The base and the injection pump can be detachably connected, so that the installation and the detachment are convenient.
Drawings
Fig. 1 is a schematic illustration of a drug delivery system according to an embodiment of the present application.
Fig. 2 is a perspective view of a syringe pump 10 provided in an embodiment of the present application.
Fig. 3 to 6 are schematic views of the syringe pump 10 in a disassembled state.
Fig. 7 is a top view of syringe pump 10 shown disassembled.
Fig. 8 is a perspective view of the drive mechanism 60.
Fig. 9 is a schematic perspective view of the syringe pump 10 after disassembly.
Fig. 10 is a schematic illustration of administration provided by an embodiment of the present application.
Fig. 11 is a schematic illustration of another delivery system provided in accordance with an embodiment of the present application.
The reference numerals used in fig. 1 to 10 include: 10-a syringe pump; 11-a base, 111-an indwelling needle; 20-housing, 21-lower housing, 211-second mounting post, 212-first mounting post, 22-upper housing; 30-a circuit board, 31-a second mounting hole; 40-a power module; 50-driving module, 51-motor, 52-ball screw, 521-screw, 522-ball, 5221-guiding hole, 53-bracket, 531-first mounting hole, 54-guiding rod; 60-injector, 61-push rod, 62-medicine bag and 621-medicine flow channel.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "comprising" and "having" and any variations thereof in the description and claims of the application and in the foregoing drawings are intended to cover non-exclusive inclusions. Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described in this specification may be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic illustration of a drug delivery system according to an embodiment of the present application. The drug delivery system comprises a syringe pump 10 and a base 11, the base 11 is used for being mounted on a human body, the base 11 is detachably connected with the syringe pump 10, the base 11 comprises an indwelling needle 111 for being inserted into a bone marrow cavity, and the indwelling needle 111 is used for being connected with a drug flow channel (not shown in fig. 1) of the syringe pump 10.
In one possible implementation, the indwelling needle 111 is detachably connected to the body of the base 11. When the base 11 is connected to the syringe pump 10, the drug flow path of the syringe pump 10 is also connected to the indwelling needle 111.
Taking the skull as an example, describing the process of installing the base 11, firstly performing a skull drilling operation, and placing the indwelling needle 111 in the bone marrow cavity of the skull; then suturing the scalp; the indwelling needle 111 is then connected to the base 11, and the base 11 is attached to the head of the patient. The indwelling needle 111 of the application is placed in the bone marrow cavity of the skull, does not break through the bottom layer of the skull, and does not cause damage to the brain.
The present application provides a drug delivery system comprising a base 11 mounted on a human body, the base 11 comprising an indwelling needle 111 for insertion into a bone marrow cavity; when in administration, the injection pump 10 is connected with the base 11, and the medicine flow passage of the injection pump 10 is connected with the indwelling needle 111 on the base, and medicine sequentially passes through the medicine flow passage and the indwelling needle 111 to reach the marrow cavity, so that the marrow administration is completed. Because the base 11 is mounted on the human body, i.e., the indwelling needle 111 of the base 11 is indwelled in the bone marrow cavity, the need for re-puncturing for each administration is avoided. The base 11 and the syringe pump 10 may be configured for removable connection, thereby facilitating installation and removal.
Referring to fig. 2 to 10, the syringe pump 10 provided by the present application includes a housing 20, a power module 40, a driving mechanism 50 and a syringe 60; the injector 60 comprises a push rod 61 and a medicine bag 62, the medicine bag 62 is provided with a medicine flow passage 621, a first end of the push rod 61 is inserted into the medicine bag 62, and a second end of the push rod 61 is connected with the driving mechanism 50; the power module 40 and the drive mechanism 50 are located on the same side within the housing 20, and the injector 60 is located on the other side within the housing 20 opposite the power module 40 and the drive mechanism 50; the power module 40 and the drug bladder 62 are located on the same side within the housing 20; the power module 40 is used for supplying power to the driving mechanism 50; the driving mechanism 50 is used for driving the push rod 61 to move.
Referring to fig. 7, taking the orientation shown in fig. 7 as an example, the power module 40 and the driving mechanism 50 are located at the rear side in the housing 20, and the injector 60 is located at the front side in the housing 20; the power module 40 and the drug bladder 62 are located on the right side within the housing 20; the push rod 61 is located at the front side inside the housing 20 and moves in the left-right direction.
The drug flow path 621 is also a drug flow path of the syringe pump 10.
According to the injection pump 10 provided by the application, the power module 40 and the driving mechanism 50 are positioned on the same side in the shell 20, the injector 60 is positioned on the other side, opposite to the power module 40 and the driving mechanism 50, in the shell 20, and the medicine bag 62 of the power module 40 and the injector 60 is positioned on the same side in the shell 20, so that all parts in the shell 20 of the injection pump 10 are more compact, and the miniaturization and the light weight of the injection pump are facilitated.
Referring to fig. 3, the housing 20 of the syringe pump 10 includes a lower housing 21 and an upper housing 22. The lower case 21 and the upper case 22 enclose an inner cavity of the case 20.
It should be noted that the medicine bag 62 may be integrally formed with the lower housing 21, or may be detachably mounted on the inner surface of the lower housing 21.
In one possible implementation, the syringe pump further comprises a control module for controlling the syringe pump administration. For example, the control module performs administration control in a fixed amount according to the setting timing of the program.
In one possible implementation, the control module is further configured to receive a human morbidity signal from the sensor and control administration of the syringe pump according to the human morbidity signal. For example, when the control module receives a human morbidity signal from the sensor, the control module performs the administration control of the additional dose according to the human morbidity signal on the basis of the administration control of the control module quantitatively in accordance with the setting timing of the program.
Wherein the sensor may be provided on the base 11 or on the syringe pump 10. The sensor may also be a stand alone sensor outside the drug delivery system. The communication between the sensor and the control module may be wireless communication or wired communication, which is not limited in this aspect of the application.
Referring to fig. 4 and 5, the control module includes a circuit board 30, the circuit board 30 is provided with a second mounting hole 31, the housing 20 is further provided with a second mounting post 211, and the second mounting hole 31 on the circuit board 30 is matched with the second mounting post 211 on the housing 20, so that the circuit board 30 is mounted above the power module 40 and/or the driving mechanism 50.
Specifically, the power module 40, the driving mechanism 50 and the second mounting post 211 are all disposed on the inner surface of the lower case 21, and the height of the second mounting post 211 is greater than the height of the power module 40 and/or the driving mechanism 50, so that the second mounting post 211 mounts the circuit board 30 above the power module 40 and/or the driving mechanism 50 when the second mounting hole 31 on the circuit board 30 is inserted into the second mounting post 211. In addition, the height of the syringe 60 is greater than the height of the second mounting post 211, and the circuit board 30 has a notch corresponding to the syringe 60, so that the circuit board 30 can be mounted on the second mounting post 211.
The size (including height) of the syringe 60 is determined according to the medicine storage amount. When the stored-drug amount is small, the height of the syringe 60 may be smaller than the height of the second mounting column 211. In addition, the number and positions of the second mounting posts 211 and the second mounting holes 31, and the shape and size of the circuit board 30 can be flexibly adjusted according to the requirements.
The power module 40 is a battery, and a battery accommodating groove is formed on the inner surface of the lower case 21, and the battery is installed in the battery accommodating groove.
Referring to fig. 6 to 8, the driving mechanism 50 includes a motor 51 and a ball screw 52; the motor 51 is used for driving the screw 521 of the ball screw 52 to rotate; the ball 522 of the ball screw 52 is connected to the second end of the push rod 61.
With continued reference to fig. 6-8, the drive mechanism 50 further includes a bracket 53, the bracket 53 being mounted to an inner surface of the housing 20 (specifically, an inner surface of the lower housing 21), and the motor 51 and the screw 521 being mounted to the bracket 53.
With continued reference to fig. 6 to 8, the lead screw 521 is mounted on the bracket 53 at both ends thereof, and the lead screw 521 is suspended from the inner surface of the housing 20 (specifically, the inner surface of the lower housing 21); the output shaft of the motor 51 is parallel to the lead screw 521. The suspension of the screw 521 from the inner surface of the lower housing 21 means that the screw 521 is spaced apart from the inner surface of the lower housing 21.
Wherein, both ends of the screw 521 can be mounted with the bracket 53 through bearings; the output shaft of the motor 51 may be connected to the screw 521 through a gear or a belt, thereby driving the screw 521 to rotate.
With continued reference to fig. 6-8, the drive mechanism 50 further includes a guide bar 54 parallel to the lead screw 521; both ends of the guide rod 54 are mounted on the bracket 53, and the guide rod 54 is suspended from the inner surface of the housing 20 (specifically, the inner surface of the lower housing 21); the first end of the ball 522 is connected to the screw 521, the second end of the ball 522 is connected to the second end of the push rod 61, a guide hole 5221 is provided between the first end and the second end of the ball 522, and the guide rod 54 is inserted into the guide hole 5221. The guide bar 54 is suspended from the inner surface of the lower housing 21 means that the guide bar 54 is spaced apart from the inner surface of the lower housing 21.
Specifically, the push rod 61 is "L" -shaped, with a first end of the "L" being inserted into the capsule 62 and a second end of the "L" being connected to a second end of the ball 522.
With continued reference to fig. 6 to 8, the bracket 53 is provided with a first mounting hole 531, the housing 20 is provided with a first mounting post 212, and the first mounting hole 531 on the bracket 52 cooperates with the first mounting post 212 on the housing 20 to mount the bracket 53 on the inner surface of the housing 20 (specifically, the inner surface of the lower housing 21).
The number and positions of the first mounting posts 212 and the first mounting holes 531 may be flexibly adjusted according to the requirement.
Referring to fig. 9 and 10, a piston is disposed at a first end of the push rod 61, and when the driving mechanism 50 drives the push rod 61 to move forward, the piston on the push rod 61 flows out of the medicine flow passage 621 from the medicine in the medicine bag 62, and then enters into bone marrow through the indwelling needle 111 (not shown in fig. 10) on the base 11, so as to complete bone marrow administration.
Referring to fig. 11, fig. 11 is a schematic illustration of another drug delivery system according to an embodiment of the present application. The drug delivery system includes a base 11 (not shown in fig. 11), an indwelling needle 111, and a syringe pump 10, the base 11 is for mounting on a human body, the base 11 is detachably connected to the syringe pump 10, and a drug output from the syringe pump 10 is delivered to a bone marrow cavity of the human body through the indwelling needle 111.
Unlike the drug delivery system shown in fig. 1, in the drug delivery system shown in fig. 11, the indwelling needle 111 is not provided on the base 11, but is a separate component from the base 11. In this way, the mounting position of the base 11 on the human body may be different from the position of the drilling operation.
Taking the skull as an example, the assembling process of the drug delivery system shown in fig. 11 is described, wherein first, a skull drilling operation is performed, and the indwelling needle 111 is placed in the bone marrow cavity of the skull; then suturing the scalp; the base 11 is arranged on the head of the patient; finally, the indwelling needle 111 is connected to the medicine flow path 621 of the syringe pump 10.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions described in the embodiments of the present application.

Claims (10)

1. A syringe pump (10) characterized by comprising a housing (20), a power module (40), a drive mechanism (50) and a syringe (60); the injector (60) comprises a push rod (61) and a medicine bag (62), a first end of the push rod (61) is inserted into the medicine bag (62), and a second end of the push rod (61) is connected with the driving mechanism (50);
the power module (40) and the drive mechanism (50) are located on the same side within the housing (20), and the injector (60) is located on the other side within the housing (20) opposite the power module (40) and the drive mechanism (50);
the power module (40) and the drug pouch (62) are located on the same side within the housing (20);
the power supply module (40) is used for supplying power to the driving mechanism (50);
the driving mechanism (50) is used for driving the push rod (61) to move.
2. The syringe pump (10) of claim 1, wherein the drive mechanism (50) includes a motor (51) and a ball screw (52);
the motor (51) is used for driving a screw (521) of the ball screw (52) to rotate;
a ball (522) of the ball screw (52) is connected to the second end of the push rod (61).
3. The syringe pump (10) of claim 2, wherein the drive mechanism (50) further comprises a bracket (53), the bracket (53) being mounted to an inner surface of the housing (20), the motor (51) and the lead screw (521) being mounted to the bracket (53).
4. A syringe pump (10) as claimed in claim 3, wherein the screw (521) is mounted on the bracket (53) at both ends, the screw (521) being suspended from the inner surface of the housing (20);
an output shaft of the motor (51) is parallel to the screw (521).
5. The syringe pump (10) of claim 3 or 4, wherein the drive mechanism (50) further comprises a guide bar (54) parallel to the lead screw (521);
both ends of the guide rod (54) are arranged on the bracket (53), and the guide rod (54) is suspended on the inner surface of the shell (20);
the first end of the ball (522) is connected with the screw rod (521), the second end of the ball (522) is connected with the second end of the push rod (61), a guide hole (5221) is formed between the first end and the second end of the ball (522), and the guide rod (54) penetrates through the guide hole (5221).
6. Syringe pump (10) according to claim 3 or 4, characterized in that the bracket (53) is provided with a first mounting hole (531), the housing (20) is provided with a first mounting post (212), the first mounting hole (531) on the bracket (53) cooperates with the first mounting post (212) on the housing (20) so that the bracket (53) is mounted on the inner surface of the housing (20).
7. The syringe pump (10) of claim 1, wherein the syringe pump (10) further comprises a control module for controlling the administration of the syringe pump (10).
8. The syringe pump (10) of claim 7, wherein the control module is further configured to receive a human morbidity signal from the sensor and to control administration of the syringe pump (10) based on the human morbidity signal.
9. Syringe pump (10) according to claim 7 or 8, characterized in that the control module comprises a circuit board (30), the circuit board (30) is provided with a second mounting hole (31), the housing (20) is further provided with a second mounting post (211), the second mounting hole (31) on the circuit board (30) is matched with the second mounting post (211) on the housing (20), so that the circuit board (30) is mounted above the power module (40) and/or the driving mechanism (50).
10. A drug delivery system comprising a base (11), an indwelling needle (111) and the syringe pump (10) according to any one of claims 1 to 9, said base (11) being for mounting on a human body, said base (11) being detachably connected to said syringe pump (10), said syringe pump (10) delivering drug output by said syringe pump (10) through said indwelling needle (111) to the bone marrow cavity of the human body.
CN202311059935.2A 2023-08-22 2023-08-22 Injection pump and drug delivery system Pending CN116899051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311059935.2A CN116899051A (en) 2023-08-22 2023-08-22 Injection pump and drug delivery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311059935.2A CN116899051A (en) 2023-08-22 2023-08-22 Injection pump and drug delivery system

Publications (1)

Publication Number Publication Date
CN116899051A true CN116899051A (en) 2023-10-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311059935.2A Pending CN116899051A (en) 2023-08-22 2023-08-22 Injection pump and drug delivery system

Country Status (1)

Country Link
CN (1) CN116899051A (en)

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