CN212997751U

CN212997751U - Infusion device

Info

Publication number: CN212997751U
Application number: CN202020596232.9U
Authority: CN
Inventors: 胡国雄; 刘斌辉
Original assignee: Shenzhen Zhongke Optoelectronic Medical Electronics Co ltd
Current assignee: Shenzhen Zhongke Optoelectronic Medical Electronics Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-04-20
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses an infusion device, which comprises an infusion tube, wherein one end of the infusion tube is provided with a piston; the infusion tube is spirally arranged on the inner wall of the accommodating cavity along the axial direction of the accommodating cavity, and the other end of the infusion tube is exposed out of the shell; the driving assembly is used for driving the piston to feed forwards along the infusion pipe embedding path and comprises a rotating piece coaxially arranged in the containing cavity, a cutting piece which is arranged on the outer wall of the rotating piece in a sliding mode and matched with the piston, and a driving piece which is arranged in the containing cavity and used for driving the rotating piece to rotate; the cutting piece moves back and forth along the axial direction of the containing cavity. With this structural design, set up infusion pipe spiral in accomodating intracavity wall to this length that increases infusion pipe, later promote the piston through the cutting member again and feed, thereby effectively promoted infusion set's infusion precision, also reduced infusion set's manufacturing cost simultaneously.

Description

Infusion device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an infusion device.

Background

Infusion device under the prior art receives infusion pipe length restriction for infusion precision hardly obtains effective promotion, if the simple dependence promotes the piston drive assembly precision and satisfies infusion precision, must very big increase infusion device's manufacturing cost, in addition, because current infusion device's volume is great, consequently makes in-service use receive a great deal of restriction, then can't effectively promote infusion device's commonality, and portability is extremely poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an infusion device, this infusion device compact structure, infusion precision is high, can effectively reduce the manufacturing cost of infusion device.

To achieve the purpose, the utility model adopts the following technical proposal:

an infusion device comprising:

an infusion tube; one end of the infusion tube is provided with a piston;

the infusion tube is spirally arranged on the inner wall of the accommodating cavity along the axial direction of the accommodating cavity, and the other end of the infusion tube is exposed out of the shell;

the driving assembly is used for driving the piston to feed forwards along the infusion pipe embedding path and comprises a rotating piece coaxially arranged in the containing cavity, a cutting piece which is arranged on the outer wall of the rotating piece in a sliding mode and matched with the piston, and a driving piece which is arranged in the containing cavity and used for driving the rotating piece to rotate; the cutting piece moves back and forth along the axial direction of the containing cavity.

The rotating part is annularly arranged, gear teeth are uniformly distributed on the upper end face or the lower bottom face of the rotating part in the circumferential direction, and the gear teeth are meshed with a gear arranged at the driving end of the driving part.

The driving part comprises a fixed seat coaxially fastened with the containing cavity and a motor radially fastened on the side wall of the fixed seat, and a driving shaft of the motor penetrates through the side wall of the fixed seat and is fastened with the gear.

The rotating part is sleeved on the fixed seat, and a rolling sleeve is arranged between the rotating part and the fixed seat.

The outer side wall of the rotating piece is provided with a sliding groove along the axial direction of the containing cavity, and the cutting piece is connected with the sliding groove in a sliding mode.

The cutting piece is a blade, and the blade radially penetrates through the infusion tube and is abutted against one side of the piston, which is far away from the liquid medicine.

The infusion tube is characterized in that the shell comprises an upper shell and a lower shell which are matched with each other, the inner wall of the upper shell or the inner wall of the lower shell is spirally provided with a containing groove used for storing the infusion tube, and one end of the containing groove is communicated with a through hole formed in the upper shell or the lower shell.

The inner wall of the fixing seat is convexly provided with a mounting boss, and the mounting boss penetrates through the axial direction of the fixing seat to form a mounting hole.

The inner wall of the fixing seat is provided with a mounting plane, and the motor is fastened with the mounting plane.

The utility model has the advantages that: the utility model discloses an infusion device, which comprises an infusion tube, wherein one end of the infusion tube is provided with a piston; the infusion tube is spirally arranged on the inner wall of the accommodating cavity along the axial direction of the accommodating cavity, and the other end of the infusion tube is exposed out of the shell; the driving assembly is used for driving the piston to feed forwards along the infusion pipe embedding path and comprises a rotating piece coaxially arranged in the containing cavity, a cutting piece which is arranged on the outer wall of the rotating piece in a sliding mode and matched with the piston, and a driving piece which is arranged in the containing cavity and used for driving the rotating piece to rotate; the cutting piece moves back and forth along the axial direction of the containing cavity. With this structural design, set up infusion pipe spiral in accomodating intracavity wall to this length that increases infusion pipe, later promote the piston through the cutting member again and feed, thereby effectively promoted infusion set's infusion precision, also reduced infusion set's manufacturing cost simultaneously.

Drawings

Fig. 1 is an exploded view of an infusion device of the present invention

Fig. 2 is an assembly view of fig. 1.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 2, the present embodiment provides an infusion device, including infusion pipe 1, casing and drive assembly, specifically, the casing includes casing 21 and casing 22 down of mutually supporting, and casing 22's inner wall spiral is provided with and is used for depositing the groove of accomodating of infusion pipe 1 down, the one end of accomodating the groove with run through set up in go up the through-hole of casing 21 and link up mutually. Be provided with one in upper housing 21 and the lower casing 22 after the cooperation and accomodate the chamber, infusion pipe 1 is followed the axial spiral who accomodates the chamber sets up in accomodating the inslot, it is further, for the infusion of infusion pipe 1 infusion, this embodiment is served at infusion pipe 1 one that is located and accomodates the chamber and is provided with the piston, infusion pipe 1 passes the through-hole and exposes in the one end of upper housing 21 and parts such as syringe needle are connected with outside infusion piece, with this structural design, can be convenient accomodate infusion pipe 1, simultaneously because infusion pipe 1 is the spiral setting, consequently can also deposit longer infusion pipe 1, then effectively promote infusion device's unit infusion precision.

More specifically, in order to drive the piston to feed forward along the embedding path of the infusion tube 1, the driving assembly in this embodiment includes a rotating member 3 coaxially disposed in the accommodating cavity, a cutting member 4 slidably disposed on an outer wall of the rotating member 3 and engaged with the piston, and a driving member disposed in the accommodating cavity and configured to drive the rotating member 3 to rotate; in order to be able to always drive the cutting member 4 forward, the cutting member 4 in this embodiment is moved back and forth axially along the receiving chamber, thereby adapting the distribution of the infusion tubes 1.

Furthermore, the rotating member 3 in this embodiment is annularly disposed, gear teeth 31 are uniformly distributed on the upper end surface of the rotating member 3 in the circumferential direction, and the gear teeth 31 are engaged with a gear 51 disposed at the driving end of the driving member. More specifically, the driving member includes a fixed seat 52 coaxially fastened with the receiving cavity, and a motor 53 radially fastened to a side wall of the fixed seat 52, and a driving shaft of the motor 53 is inserted through a side wall of the fixed seat 52 and fastened to the gear 31. By adopting the above structural design, the rotating part 3 is sleeved on the fixed seat 52, and the rolling sleeve 6 is arranged between the rotating part 3 and the fixed seat 52. Thereby enabling the rotation member 3 to be more smoothly rotated by the driving of the motor 53,

in order to facilitate the installation of the cutting element 4, in this embodiment, as shown in fig. 1, a sliding groove 32 is axially formed in an outer side wall of the rotating element 3 along the accommodating cavity, the cutting element 4 is slidably connected to the sliding groove 32, preferably, the cutting element 4 is a blade, and in an initial state, the blade radially penetrates through the infusion tube 1 and abuts against a side of the piston away from the liquid medicine. I.e. the blade cuts open the empty infusion tube 1 and at the same time drives the piston forward.

Furthermore, in order to facilitate the fixing of the fixing seat 52 with the lower shell 22 and the upper shell 21, in this embodiment, a mounting boss 54 is convexly disposed on the inner wall of the fixing seat 52, and a mounting hole 541 is formed through the mounting boss 54 along the axial direction of the fixing seat 52. During installation, the screws pass through the upper housing 21 and the mounting holes 541 and are screwed with the lower housing 22 to fix the screws, and in order to increase the stability of the fixing seat 52, the inner bottom surface of the upper housing 21 in this embodiment is pressed on the upper end surface of the fixing seat 52.

In addition, in order to facilitate the installation and fixation of the motor 53, an installation plane is disposed on the inner wall of the fixed seat 52, the end surface of the motor 53 is fastened to the installation plane, and the driving end of the motor 53 is exposed out of the fixed seat 52 and is engaged with the rotating part 3 through a gear.

Further, in the present embodiment, in order to make the connection of the upper housing and the lower housing more stable,

lateral lugs

211 and 221 for fastening by screws are further provided on the outer circumferential surfaces of the upper housing and the lower housing, respectively.

Adopt above-mentioned structural design's infusion device, connect compactly between each part, the volume is less relatively, conveniently carries, because infusion pipe 1 adopts the spiral setting, has consequently effectively prolonged the length of infusion pipe, very big promotion this infusion device's infusion precision.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. An infusion device, comprising:

one end of the infusion tube is provided with a piston;

2. The infusion device according to claim 1, wherein the rotating member is disposed annularly, and the upper end surface or the lower bottom surface of the rotating member is circumferentially and uniformly provided with gear teeth, and the gear teeth are engaged with a gear disposed at the driving end of the driving member.

3. The infusion device as claimed in claim 2, wherein the driving member comprises a fixing base coaxially fastened with the receiving cavity, and a motor radially fastened to a side wall of the fixing base, and a driving shaft of the motor penetrates through the side wall of the fixing base and is fastened to the gear.

4. The infusion device as claimed in claim 3, wherein the rotating member is sleeved on the fixing base, and a roller is disposed between the rotating member and the fixing base.

5. The infusion device as claimed in claim 1, wherein the outer side wall of the rotating member is provided with a sliding groove along the axial direction of the receiving cavity, and the cutting member is slidably connected with the sliding groove.

6. An infusion device according to claim 1, wherein the cutting member is provided as a blade extending radially through the infusion tube and abutting a side of the piston facing away from the medical fluid.

7. The infusion device according to claim 1, wherein the housing comprises an upper housing and a lower housing which are matched with each other, the inner wall of the upper housing or the lower housing is spirally provided with a receiving groove for storing the infusion tube, and one end of the receiving groove is communicated with a through hole which is arranged on the upper housing or the lower housing in a penetrating way.

8. The infusion device according to claim 3, wherein a mounting boss is convexly provided on an inner wall of the fixing seat, and a mounting hole is formed through the mounting boss along an axial direction of the fixing seat.

9. An infusion device as claimed in claim 3, wherein the inner wall of the holder is provided with a mounting surface to which the motor is fast.