CN110812614A

CN110812614A - Emergency micro-infusion device

Info

Publication number: CN110812614A
Application number: CN201911246291.1A
Authority: CN
Inventors: 田耀能
Original assignee: HUNAN PINGAN MEDICAL DEVICES TECHNOLOGY Co Ltd
Current assignee: HUNAN PINGAN MEDICAL DEVICES TECHNOLOGY Co Ltd
Priority date: 2019-12-08
Filing date: 2019-12-08
Publication date: 2020-02-21

Abstract

The invention provides an emergency micro infusion device, which comprises a shell, a drug delivery tube and a drug delivery tube, wherein the shell comprises the drug delivery tube which is communicated with the center of the top end of the shell; the inside of the shell is hollow; the push-pull assembly comprises a rod body which is movably arranged in the shell and is hollow inside, a piston which is arranged at the top end of the rod body and is arranged in the shell in a sliding manner, and handles which are vertically connected to the bottom end of the rod body and are symmetrically arranged; the handle penetrates through the shell; the base is in threaded connection with the bottom end of the shell; in the initial state, the base is only partially connected with the shell in a threaded mode and is not completely screwed in. The push-pull assembly further comprises springs, two ends of each spring are arranged on the top and the bottom of the inner cavity of the rod body. Compared with the prior art, the micro-infusion device for emergency use can perform micro-injection on a patient in an emergency condition of power failure or no power supply without human intervention; simple structure, ingenious design and simple operation.

Description

Emergency micro-infusion device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a device capable of performing micro infusion under the condition of emergency without being influenced by adverse conditions.

Background

The micro-infusion of the syringe is widely applied in clinic, the conventional syringe usually carries out micro-injection through a micro-infusion pump when needing micro-infusion, but the existing micro-pump cannot be normally used in the field or under the conditions of no electricity and wars in natural disasters such as earthquakes and floods, great inconvenience is brought to medical staff, and even the condition of influencing the life of a patient occurs.

Therefore, there is an urgent need for a device capable of performing microinjection in an emergency situation where power is cut off or power is not supplied.

Disclosure of Invention

It is an object of the present invention to overcome the disadvantages of the prior art and to provide a microinjection apparatus which does not require the use of external energy sources, such as electrical energy, in an emergency.

To achieve the above object, the present invention provides an emergency micro infusion device, comprising:

the shell comprises a medicine inlet pipe communicated with the center of the top end of the shell; the shell is hollow inside;

the push-pull assembly comprises a rod body which is movably arranged in the shell and is hollow inside, a piston which is arranged at the top end of the rod body and is arranged in the shell in a sliding manner, and handles which are vertically connected to the bottom end of the rod body and are symmetrically arranged; the handle penetrates through the shell;

the base is connected to the bottom end of the shell in a threaded manner; in the initial state, the base is only partially connected with the shell in a threaded mode and is not completely screwed in.

The push-pull assembly further comprises a spring, two ends of the spring are arranged on the top of the inner cavity of the rod body and on the bottom of the rod body. The liquid medicine is sucked through the push-pull assembly and is slowly injected into the body of the patient in a micro-scale manner.

Preferably, the shell is symmetrically provided with two strip-shaped through holes parallel to the axis; the handle and the root part connected with the rod body are movably penetrated in the strip-shaped through hole. The arrangement of the strip-shaped through hole provides a channel for the movement of the handle. The length of the strip-shaped through hole cannot be too long, otherwise, when the handle moves to the bottom end, the top end of the piston is lower than the top end of the strip-shaped through hole, and liquid medicine flows outwards; therefore, when the handle is moved to the bottom end, the top end of the piston is not lower than the top end of the strip-shaped through hole.

Preferably, in an initial state, the root is located at the top end of the strip-shaped through hole; the base further comprises a limiting pipe arranged in the center of the base, and the limiting pipe is sleeved on the periphery of the spring in a ring mode; in an initial state, the bottom end of the root is not lower than the limiting pipe, namely, the rod body is always sleeved on the periphery of the limiting pipe in a sleeved mode, and the rod body can always move up and down along the limiting pipe.

Preferably, the base comprises a base plate and an extension end vertically arranged on the edge of the base plate and in threaded connection with the shell; the extension end comprises an inner end arranged on the outer inner periphery and in threaded connection with the outer inner periphery, and an outer end arranged on the outer periphery of the shell and clamped with the handle.

Preferably, the length of the limiting pipe is not less than the distance from the bottom end of the root part to the upper surface of the base plate in the initial state, so that the rod body can be sleeved on the periphery of the limiting pipe all the time. The distance from the top end of the limiting pipe to the top end of the inner cavity of the rod body is not smaller than the distance from the bottom end of the root to the top end of the extending end in the initial state, so that when the handle moves to the bottom end, the top end of the inner cavity of the rod body cannot be extruded with the limiting top end, namely the distance for the handle to move downwards cannot be influenced by the limiting pipe.

Preferably, the center of the base plate is provided with a base spring seat connected with the spring, the center of the top of the rod inner cavity is provided with a rod spring seat connected with the spring, and the base spring seat and the rod spring seat are coaxially arranged. So that the spring always remains parallel to the axis of the housing or the rod.

Preferably, in the direction parallel to the axis of the rod body, the upper surface and the lower surface of the handle are both concave cambered surfaces; the lower surface with the junction of root form with the annular recess of outer end looks block, the thickness of outer end slightly is greater than the groove width of recess, just the handle with the base is the hard rubber material, makes the outer end can extrude the card and advance in the recess, and with the recess does not take place to become flexible and breaks away from. When the handle is moved to the lowest end, the outer end is clamped into a part of the groove.

Preferably, the medicine inlet pipe is sleeved with a connecting pipe in threaded connection with the medical needle.

Preferably, the material of the shell is transparent plastic or glass, and the shell is marked with scale marks.

The working principle is as follows: inserting a needle head connected with the medicine inlet pipe into the liquid medicine, pulling the push-pull assembly back and forth to enable the push-pull assembly to reach the expected medicine amount, screwing the base to be clamped with the groove on the handle, and enabling the base and the handle not to be loosened and separated; after the operation is finished, the human body venipuncture is carried out according to the normal procedure. When micro infusion is needed, the base is unscrewed, and automatic micro infusion can be carried out through the restoring force of the spring until the infusion is finished.

Due to the application of the technical scheme, compared with the prior art, the micro infusion device for emergency use provided by the invention can be used for carrying out micro injection on a patient without being limited by an external power supply under the emergency conditions of power failure or no power supply, such as field, natural disasters and the like, and does not need personnel intervention; the device has simple structure and ingenious design, and does not need personnel intervention in the operation process.

Drawings

FIG. 1 is a front perspective view of the internal structure of the present invention;

FIG. 2 is a front sectional view of the outer case of the present invention;

FIG. 3 is a perspective side view of the housing of the present invention;

FIG. 4 is a front view of the push-pull assembly of the present invention;

FIG. 5 is a front view of the base of the present invention;

fig. 6 is a side view of the outer structure of the present invention.

In the drawings: 1-shell, 11-medicine inlet pipe, 12-strip-shaped through hole, 13-connecting pipe, 21-rod body, 22-piston, 23-handle, 24-spring, 25-root, 26-rod body spring seat, 3-base, 31-limiting pipe, 32-base plate, 33-extending end and 34-base spring seat.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 6, the present invention provides an emergency micro infusion device, which includes a housing 1 including a needle connecting hole 11 formed at a top thereof; the inside of the shell is hollow; the push-pull assembly comprises a rod body 21 which is movably arranged in the shell and is hollow inside, a piston 22 which is arranged at the top end of the rod body 21 and is arranged in the shell 1 in a sliding manner, and handles 23 which are vertically connected to the bottom end of the rod body 21 and are symmetrically arranged; the handle 23 penetrates through the shell 1; the base 3 is connected to the bottom end of the shell 1 in a threaded manner; in the initial state, the base 3 is screwed only partially into the housing 1 and is not screwed completely in. In this embodiment, the base 3 is now screwed in half. The push-pull assembly further comprises a spring 24 with two ends arranged on the top of the inner cavity of the rod body 21 and the base 3. The liquid medicine is sucked by the push-pull assembly and is slowly injected into the body of the patient in a trace manner.

As shown in fig. 2 and 3, two strip-shaped through holes 12 parallel to the axis are symmetrically formed in the housing 1; as shown in FIG. 1, the root 25 of the handle 23 connected with the rod 21 is movably penetrated in the strip-shaped through hole 12. The arrangement of the strip-shaped through hole 12 provides a passage for the movement of the handle 23. The length of the strip-shaped through hole 12 cannot be too long, otherwise, when the handle 23 moves to the bottom end, the top end of the piston 22 is lower than the top end of the strip-shaped through hole 12, and liquid medicine outflow occurs; therefore, when the handle 23 is moved to the lowermost end, the top end of the piston 22 is not lower than the top end of the bar-shaped through hole 12. In the initial state, the root 25 is positioned at the top end of the strip-shaped through hole 12; the base 3 also comprises a limiting pipe 31 arranged at the center of the base, and the limiting pipe 31 is sleeved on the periphery of the spring 24 in a sleeving manner; in the initial state, the bottom end of the root part 25 is not lower than the limiting pipe, namely, the rod body 21 is always sleeved on the periphery of the limiting pipe 31, so that the rod body 21 can always move up and down along the limiting pipe 31. As shown in fig. 5, the base 3 includes a base plate 32, and an extension end 33 vertically provided at an edge of the base plate 32 and screwed with the housing 1; the extension end 33 includes an inner end disposed on the inner periphery of the housing 1 and screwed thereto, and an outer end disposed on the outer periphery of the housing 1 and engaged with the handle 23. The length of the limiting tube 31 is not less than the distance from the bottom end of the root 25 to the upper surface of the base plate 32 in the initial state, so that the rod body 21 can be sleeved on the periphery of the limiting tube 31 all the time. The distance on the top of the limiting tube 31 to the top of the inner cavity of the rod body 21 is not less than the distance from the bottom end of the root 25 to the top of the extension end 33 in the initial state, so that when the handle 23 moves to the bottom end, the top end of the inner cavity of the rod body 21 cannot be extruded with the top end of the limiting tube 31, and the distance for moving down the handle 23 cannot be influenced by the setting of the limiting tube 31.

As shown in fig. 4, the base plate 32 is centrally provided with a base spring seat 34 connected with the spring 24, the rod body spring seat 26 connected with the spring 24 is centrally provided at the top of the inner cavity of the rod body 21, and the base spring seat 34 and the rod body spring seat 26 are coaxially provided. This keeps the spring 26 always parallel to the axis of the housing 1 or the rod 21.

In the direction parallel to the axis of the rod body 21, the upper surface and the lower surface of the handle 23 are both concave cambered surfaces; the junction of lower surface and root 25 forms the annular recess 27 with outer end looks block, and the thickness of outer end slightly is greater than the groove width of recess 27, and handle 23 and base 3 are hard rubber material for the outer end can extrude the card go into in the recess 27, and does not take place to become flexible with recess 27 and break away from. When the handle 23 is moved to the lowermost end, the outer end is snapped into a portion of the recess 27. As shown in fig. 1 or 4, in the present embodiment, a curved portion as shown in fig. 1 is provided at one end of the upper surface of the handle 23 near the housing 1.

The outer ring of the medicine inlet pipe 11 is provided with a connecting pipe 13 which is connected with the medical needle by screw thread.

The material of the shell 1 is transparent plastic or glass, and scale marks are marked on the shell 1.

The working principle is as follows: inserting a needle head connected with the medicine inlet pipe 13 into the liquid medicine, pulling the push-pull assembly back and forth to enable the push-pull assembly to reach the expected medicine amount, screwing the base to enable the base 3 to be clamped with the groove 27 on the handle 23, and enabling the base and the handle not to loosen and separate; after the operation is finished, the human body venipuncture is carried out according to the normal procedure. When micro infusion is needed, the base 3 is unscrewed, and automatic micro infusion can be carried out through the restoring force of the spring 24 until the infusion is finished.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An emergency micro infusion device comprising:

the shell (1) comprises a medicine inlet pipe (11) communicated with the center of the top end of the shell; the shell is hollow inside;

the push-pull assembly comprises a rod body (21) which is movably arranged in the shell and is hollow inside, a piston (22) which is arranged at the top end of the rod body (21) and is arranged in the shell (1) in a sliding manner, and handles (23) which are vertically connected to the bottom end of the rod body (21) and are symmetrically arranged; the handle (23) penetrates through the shell (1);

the base (3) is connected to the bottom end of the shell (1) in a threaded manner;

the push-pull assembly further comprises a spring (24) with two ends arranged at the top of the inner cavity of the rod body (21) and on the base (3).

2. An emergency micro infusion device according to claim 1, wherein: two strip-shaped through holes (12) parallel to the axis are symmetrically formed in the shell (1); the root part (25) of the handle (23) connected with the rod body (21) movably penetrates through the strip-shaped through hole (12); when the handle (23) moves to the bottommost end, the top end of the piston (22) is not lower than the top end of the strip-shaped through hole (12).

3. An emergency micro infusion device according to claim 2, wherein: in an initial state, the root part (25) is positioned at the top end of the strip-shaped through hole (12); the base (3) further comprises a limiting pipe (31) arranged in the center of the base, and the limiting pipe (31) is sleeved on the periphery of the spring (24); the rod body (21) is always sleeved on the periphery of the limiting pipe (31).

4. An emergency micro infusion device according to claim 3, wherein: the base (3) comprises a base plate (32) and an extension end (33) which is vertically arranged on the edge of the base plate (32) and is in threaded connection with the shell (1); the extension end (33) comprises an inner end which is arranged on the inner periphery of the shell (1) and is in threaded connection with the inner end, and an outer end which is arranged on the outer periphery of the shell (1) and is clamped with the handle (23).

5. An emergency micro infusion device according to claim 4, wherein: the length of the limiting pipe (31) is not less than the distance from the bottom end of the root part (25) to the upper surface of the base plate (32) in an initial state; the distance from the top end of the limiting pipe (31) to the top end of the inner cavity of the rod body (21) is not less than the distance from the bottom end of the root part (25) to the top of the extension end (33) in the initial state.

6. An emergency micro infusion device according to claim 4, wherein: the center of bed plate (32) be provided with base spring holder (34) that spring (24) are connected, body of rod (21) inner chamber top center be provided with body of rod spring holder (26) that spring (24) are connected, base spring holder (34) with the coaxial setting of body of rod spring holder (26).

7. An emergency micro infusion device according to claim 4, wherein: in the direction parallel to the axis of the rod body (21), the upper surface and the lower surface of the handle (23) are both concave cambered surfaces; and a groove (27) clamped with the outer end is formed at the joint of the lower surface and the root part (25).

8. An emergency micro infusion device according to claim 1, wherein: the outer ring of the medicine inlet pipe (11) is sleeved with a connecting pipe (13) which is in threaded connection with the medical needle.

9. An emergency micro infusion device according to claim 1, wherein: the shell (1) is made of transparent plastic or glass, and scale marks are marked on the shell (1).

10. An emergency micro infusion device according to claim 1, wherein: the handle (23) and the base (3) are both made of hard rubber materials.