CN219375680U

CN219375680U - A back-off fixer and transfusion system for transfusion system

Info

Publication number: CN219375680U
Application number: CN202223465521.3U
Authority: CN
Inventors: 张山; 张珊; 张红赛; 张静; 李嘉悦
Original assignee: Capital Medical University
Current assignee: Capital Medical University
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-07-21
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a back-off fixer for an infusion apparatus and the infusion apparatus, comprising: the back-off is provided with a handle and a clamping claw part, the clamping claw part is unfolded freely relative to the handle, and the knob is connected with the back-off through threads. The utility model can control the opening and closing of the clamping claw part of the back-off fixer, thereby achieving the purposes of easily dropping the kettle and pulling out the needle of the infusion apparatus.

Description

A back-off fixer and transfusion system for transfusion system

Technical Field

The utility model relates to the field of medical appliances, in particular to a back-off fixer for an infusion apparatus and the infusion apparatus.

Background

The transfusion system used in the current nursing work has no anti-drop device. The needle of the disposable transfusion system and the transfusion bottle (bag) are separated due to improper movement of the patient, irregular operation of the nurse and the like, so that infection, blood return, air embolism, needle puncture and the like of the patient can be caused.

Disposable transfusion system is a common medical consumable, and through aseptic treatment, a channel between vein and liquid medicine is established for intravenous transfusion. The disposable transfusion system is composed of eight parts including intravenous needle or injection needle, needle head protecting cap, transfusion hose, medicine liquid filter, flow speed regulator, drip cup, bottle stopper puncture outfit, air filter, etc. and has injection part, medicine adding port, etc.

The prior utility model patent CN215426605U discloses an anti-drop infusion apparatus bottle stopper puncture outfit, wherein an anti-drop clip comprises a hook body, a connecting body, a handle and a spring, the structure is complex, the parts are numerous, the spring is easy to lose elasticity after being used for many times, and the anti-drop effect is influenced.

The sliding sleeve in the burette type infusion set disclosed in the other patent CN213491113U needs to move up and down to reversely buckle the wedge-shaped reverse buckle on the bottle cap, so that the operation is complex.

The utility model needs an anti-drop transfusion system which is simple in operation, low in cost and easy to operate.

Disclosure of Invention

The utility model provides an anti-drop transfusion device, which controls the opening and closing of a back-off claw through a back-off handle, has a simple structure and is convenient to operate.

A back-off holder for an infusion set, comprising: the back-off is provided with a handle and a clamping claw part, the clamping claw part is unfolded freely relative to the handle, and the knob is connected with the back-off through threads.

Further, a through hole is formed in the middle of the handle, and threads are formed on the outer surface of the handle.

Further, the handle is cylindrical.

Further, the diameter of the bottom end of the shank is smaller than the diameter of the top end of the shank.

Further, the jaw portion has a bottom end and a top end, wherein the bottom end of the jaw portion is fixedly connected with the top end of the handle portion, and the top end of the jaw portion is free to expand relative to the bottom end of the jaw portion.

Further, the number of the clamping jaw parts is three, and gaps are arranged among the three clamping jaw parts.

Further, the outer surface of the bottom end of the clamping jaw part is provided with threads.

An infusion set comprises a back-off fixer, which is provided with a back-off and a knob;

the back-off button is provided with a handle part which is sleeved and fixed on the infusion set needle;

a clamping claw part, wherein the clamping claw part is positioned on the drip cup;

the knob is connected with the back-off thread.

Further, the knob is threadably connected to the handle.

Further, the knob is in threaded connection with the jaw portion.

The beneficial effects of the utility model are as follows:

1. the inverted buckle fixer added at the joint of the infusion apparatus needle head and the drip cup utilizes the clamping jaw part of the inverted buckle fixer to be positioned at the drip cup, thereby improving the connection reliability of the infusion apparatus needle head and the drip cup, ensuring that the needle head cannot be easily separated from the drip cup, and solving the problem that the needle head is fastened only by the rubber clamping force of the infusion bottle head in the prior infusion process.

2. The knob structure in the back-off fixer can control the opening and closing of the clamping claw part of the back-off fixer by rotating the knob, thereby achieving the purposes of easily dropping a kettle and pulling out the needle head of the infusion apparatus.

Drawings

FIG. 1 is a schematic view of the structure of a knob of the present utility model;

FIG. 2 is a schematic view of the structure of the back-off of the present utility model;

FIG. 3 is a schematic view of the back-off fastener in the closed jaw portion of the present utility model;

FIG. 4 is a schematic view of the structure of the back-off fastener in the open jaw portion of the present utility model;

FIG. 5 is a schematic view of the infusion set of the present utility model;

reference numerals illustrate: 100. reversing; 110. a handle; 113. the outer surface of the shank; 111. a bottom end; 112. a top end; 114. a through hole; 120. a clamping claw part; 121. a bottom end; 122. a top end; 123. a gap; 124. an outer surface; 200. a knob; 300. and (5) dripping a kettle.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1, the present utility model provides a back-off 100 holder for an infusion set, comprising: back-off 100 and knob 200. Wherein the back-off 100 has a shank portion 110 and a jaw portion 120, the jaw portion 120 being free to spread relative to the shank portion 110. In the present embodiment, the jaw portion 120 and the shank portion 110 are integrally formed, and the jaw portion 120 is made of an elastic material and has elasticity. The knob 200 is screw-coupled with the back-off 100, and an operator rotates the knob 200 in cooperation with the internal screw thread on the inner surface of the knob 200 and the external screw thread on the outer surface of the back-off 100, so that the knob 200 can move up and down on the back-off 100, thereby controlling the opened state and the closed state of the jaw portion 120.

As shown in fig. 2, a through hole 114 is provided in the middle of the handle 110, the handle 110 is cylindrical, the outer surface thereof has an external thread, and the diameter of the handle 110 is gradually increased along the length direction of the back-off 100, that is, the diameter of the bottom end of the handle 110 is smaller than the diameter of the top end of the handle 110, so as to facilitate the cooperation of the knob 200 and the handle 110 and the rotation of an operator.

The clamping jaw 120 has a bottom end 121 and a top end 122, wherein the bottom end 121 is fixedly connected to the top end 112 of the handle 110, the top end 122 is a free end, and the top end 122 is adapted to be positioned with the drip cup 300. The number of the grip claw portions 120 is three. A gap 123 is provided between each jaw portion 120, and three jaw portions 120 are uniformly distributed on the top end of the handle 110, and the top end 122 of the jaw portion 120 is positioned by the bottom end 121 of the jaw portion 120.

The bottom end outer surface 124 of the clamping jaw 120 is threaded and the bottom end 111 is a portion of a cylinder. The tip 112 is C-shaped to fit the outlet shape of drip chamber 300.

As shown in fig. 3, the clockwise knob 200 is in threaded connection with the jaw portion 120, and the top end of the jaw portion 120 gradually contracts toward the drip cup 300 under the positioning of the bottom end of the jaw portion 120, so that the jaw portion 120 is clamped with the drip cup 300 and is limited by the drip cup, and therefore, even if the infusion needle is pulled downwards, the infusion needle cannot slide.

As shown in fig. 4, the counterclockwise rotating knob 200 is in threaded connection with the handle 110, and the clamping claw 120 is opened outwards under the self-weight, so that the top end is gradually separated from the drip cup 300, and an operator can conveniently pull out the infusion set needle.

As shown in fig. 5, an infusion set includes: a back-off holder having a back-off 100 and a knob; the back-off 100 is provided with a handle part 110, a through hole is arranged in the middle of the handle part 110, and the handle part 110 is sleeved and fixed on the infusion set needle; a clamping jaw portion 120, the clamping jaw portion 120 being positioned on the drip cup 300; knob 200 is threaded with back-off 100. The back-off 100 fixer is characterized in that the back-off 100 is sleeved and fixed on a needle of an infusion apparatus, and a clamping jaw is positioned on the drip cup 300. The inverted buckle 100 fixer added at the joint of the infusion set needle and the drip cup 300 improves the connection reliability of the infusion set needle and the drip cup 300, ensures that the needle cannot be easily separated from the drip cup, and solves the problem that the needle is fastened only by the rubber clamping force of the infusion bottle head in the existing infusion process.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A back-off fixer for an infusion apparatus, which is characterized in that: comprising the following steps:

the back-off device comprises a handle and a clamping claw part, wherein the clamping claw part is freely unfolded relative to the handle, the diameter of the bottom end of the handle is smaller than that of the top end of the handle, the clamping claw part is provided with the bottom end and the top end, the bottom end is fixedly connected with the top end of the handle, and the top end is C-shaped;

the knob is connected with the back-off thread.

2. The back-off fastener of claim 1, wherein the shank has a through hole in the middle and the shank has threads on an outer surface.

3. The back-off fastener of claim 2, wherein the shank is cylindrical.

4. The back-off fastener of claim 3, wherein the jaw portion has a bottom end and a top end, wherein the bottom end of the jaw portion is fixedly connected to the top end of the shank portion, and wherein the top end of the jaw portion is free to spread relative to the bottom end of the jaw portion.

5. The back-off fastener of claim 4, wherein the number of the jaw portions is three, and a gap is provided between the three jaw portions.

6. The back-off fastener of claim 5, wherein the outer surface of the bottom end of the clip portion is threaded.

7. An infusion set, comprising:

a back-off holder having a back-off and a knob;

the back-off button is provided with a handle part, the handle part is sleeved and fixed on the infusion set needle head, and the diameter of the bottom end of the handle part is smaller than that of the top end of the handle part;

the clamping claw part is provided with a bottom end and a top end, wherein the bottom end is fixedly connected with the top end of the handle part, and the top end is C-shaped;

the knob is connected with the back-off thread.

8. The infusion set according to claim 7, wherein the knob is threadably connected to the handle.

9. The infusion set according to claim 8, wherein the knob is threadably connected to the jaw portions.