CN213698320U - Anti-needle-drop device for infusion apparatus - Google Patents

Abstract

The utility model provides a needle drop preventing device for a transfusion device. The anti-drop needle device for the infusion set comprises a cannula needle, a catheter, an anti-drop structure and an anti-pulling structure, the anti-drop structure is connected to the one end lateral wall of the cannula needle, the anti-drop structure comprises a limiting sleeve plate, a limiting bag, an air duct, a pressing air bag, a check valve and an air inlet pipe, the cannula needle is located a groove formed by two symmetrical parts on the conical end lateral wall, an embedded surface fixed connection matched limiting bag is arranged in the groove, the limiting bag lateral wall is communicated with the air duct, the cannula needle is located a lateral wall fixed sleeve arranged at the central position to establish the limiting sleeve plate, the other end of the air duct is communicated with the pressing air bag, the cannula needle is far away from the conical. The utility model provides an anti-drop needle device for transfusion system has and can make spacing bag and bottleneck stopper department form the extrusion and touch, and the possibility of shifting out reduces, guarantees to insert the fastness, has improved the safety in utilization, and easy operation swift advantage.

Description

Anti-needle-drop device for infusion apparatus

Technical Field

The utility model relates to a transfusion system field especially relates to an anti-drop needle device for transfusion system.

Background

Infusion is also called as infusion or hanging water. Is a large dose (more than 100ml per administration) of injection which is infused into the body by intravenous drip. Are usually packaged in glass or plastic infusion bottles or bags and contain no preservatives or bacteriostatic agents. When in use, the dropping speed is adjusted by the infusion apparatus, and the infusion apparatus continuously and stably enters the vein to supplement body fluid, electrolyte or provide nutrient substances.

The prior infusion apparatus needs to insert the intubation needle into the infusion bottle or the infusion bag for use, and when the intubation needle with the smooth outer side surface is inserted into the infusion bottle or the infusion bag, the intubation needle is easy to fall off when the catheter is subjected to a pulling force process, so that the normal infusion process is influenced.

Therefore, there is a need to provide a new needle drop prevention device for an infusion set to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can make spacing bag and bottleneck stopper department form the extrusion and touch, and the possibility of shifting out reduces, guarantees to insert the fastness, has improved safety in utilization, and easy operation swift infusion set anticreep needle device.

The utility model provides an anti-drop needle device for transfusion system includes: the catheter comprises a catheter inserting needle, a catheter fixing part and a catheter fixing part, wherein one end of the catheter inserting needle is in a conical shape; the catheter, the said intubate needle is far away from the conical shape one end and catheter installation; the anti-falling structure is connected to the outer side wall of one end of the intubation needle and comprises a limiting sleeve plate, a limiting bag, an air guide tube, a pressing air bag, a one-way valve and an air inlet tube, two symmetrically arranged grooves are formed in the outer side wall of the conical end of the intubation needle, matched limiting bags are fixedly connected to the embedded surfaces of the grooves, the outer side wall of each limiting bag is communicated with the air guide tube, the limiting sleeve plate is fixedly sleeved on the outer side wall of the intubation needle in the central position, the other end of the air guide tube is communicated with the pressing air bag, the outer side wall of one end, away from the conical shape, of the intubation needle is connected with the outer side wall of the pressing air bag, the; the tube inserting needle is connected with one end of the liquid guide tube through the anti-pulling structure.

Preferably, the horizontal length of the pressing air bag from the limiting sleeve plate is 8-15 cm.

Preferably, the intubation needle lateral wall is equipped with the rectangular groove that two symmetries set up, and the one end and the recess intercommunication in rectangular groove, air duct and rectangular inslot prevent dragging the structure and include slip ring and extension spring, and intubation needle tail end inserts catheter one end inside and sliding connection, and catheter adjacent end inside wall is equipped with the ring channel, the inside sliding connection slip ring of ring channel, and the slip ring is established to catheter insertion end lateral wall fixed cover, and catheter insertion end lateral wall encircles and sets up the extension spring, the one end of extension spring and the lateral wall fixed connection of slip ring, and the extension spring other end is laminated fixed connection with the adjacent lateral wall fixed connection side of ring channel.

Preferably, the outer diameter of the tension spring is smaller than the inner diameter of the annular groove.

Compared with the prior art, the utility model provides an anti-drop needle device for transfusion system has following beneficial effect:

the utility model provides a transfusion system is with anticreep needle device, extrude the air bag of its two symmetry settings fast through thumb and forefinger, can make gas flow in the inside of spacing bag through the air duct, spacing bag is propped up, can clearly see spacing bag and prop up the form from transfusion bottle or punching bag outside, prop up the uniform size, stop the extrusion, receive external force when the intubate needle and pull in the twinkling of an eye, can make spacing bag and bottleneck stopper department form the extrusion and touch, shift out the possibility and reduce, guarantee to insert the fastness, the safety in utilization has been improved, and easy operation is swift.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of an anti-needle-release device for an infusion apparatus provided by the present invention;

FIG. 2 is a schematic diagram of a partial amplification structure shown at A in FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure shown at B in FIG. 1;

fig. 4 is a partially enlarged schematic view of a portion C shown in fig. 1.

Reference numbers in the figures: 1. a cannula needle; 2. a catheter; 3. an anti-drop structure; 4. an anti-pulling structure; 31. a limiting sleeve plate; 32. a limiting bag; 33. an air duct; 34. a groove; 35. pressing the air bag; 36. a one-way valve; 37. a pull ring; 38. an air inlet pipe; 39. a sealing plug; 41. a slip ring; 42. a tension spring; 43. an annular groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, wherein fig. 1 is a schematic structural view of a preferred embodiment of an anti-needle-drop device for an infusion apparatus according to the present invention; FIG. 2 is a schematic diagram of a partial amplification structure shown at A in FIG. 1; FIG. 3 is a schematic view of a portion of the enlarged structure shown at B in FIG. 1; fig. 4 is a partially enlarged schematic view of a portion C shown in fig. 1. The method comprises the following steps: the catheter comprises a cannula needle 1, a catheter 2, an anti-falling structure 3 and an anti-pulling structure 4.

In the specific implementation process, as shown in fig. 1, fig. 2 and fig. 3, anti-drop structure 3 is connected in the one end lateral wall of intubation needle 1, anti-drop structure 3 includes spacing lagging 31, spacing bag 32, air duct 33, press gasbag 35, check valve 36 and intake pipe 38, intubation needle 1 is located the toper end lateral wall and is equipped with the recess 34 that two symmetries set up, the spacing bag 32 of embedded face fixed connection assorted of recess 34, spacing bag 32 lateral wall intercommunication air duct 33, intubation needle 1 is located the fixed cover of lateral wall of central point position and establishes spacing lagging 31, gasbag 35 is pressed in the other end intercommunication of air duct 33, intubation needle 1 keeps away from conical one end lateral wall and presses gasbag 35 lateral wall to be connected, press gasbag 35 lateral surface intercommunication intake pipe 38, check valve 36 is installed respectively to intake pipe 38 and the adjacent end of air duct 33.

It should be noted that, doctor's operation process, the hand is held between the fingers and is located the 1 lateral wall of intubate needle of spacing lagging 31 position, insert the intubate needle 1 hard inside transfusion bottle or transfusion bag bottle plug, confirm to fill in the completion after, press gasbag 35 through thumb and forefinger quick extrusion its two symmetry settings, can make gas flow in the inside of spacing bag 32 through air duct 33, spacing bag 32 is propped up, can clearly see spacing bag 32 from transfusion bottle or transfusion bag outside and prop up the form, prop up certain size, stop the extrusion, in the twinkling of an eye when intubate needle 1 receives external force and pulls, can make spacing bag 32 and bottleneck stopper department form the extrusion and touch, it reduces to shift out the possibility, guarantee to insert the fastness, use safety has been improved, and easy operation is swift.

Referring to fig. 1, the horizontal length of the pressing airbag 35 from the limiting sleeve plate 31 is 10 cm, so that the outer side wall of the intubation needle 1 is pinched by a thumb and a forefinger and the pressing airbag 35 cannot touch, the pressing airbag 35 is prevented from touching and being extruded, gas is guided into the limiting bag 32 and is supported, and the normal insertion process is prevented from being influenced.

Referring to fig. 1, the lateral wall of the intubation needle 1 is provided with two symmetrical long grooves, one end of each long groove is communicated with the corresponding groove 34, and the air duct 33 is fixedly connected with the inner side surface of each long groove in a fitting manner.

Referring to fig. 1, the outer side surface of the pressing air bag 35 is in threaded connection with a sealing plug 39, the outer side surface of the sealing plug 39 rotates a pull ring 37, and it should be noted that when the intubation needle 1 needs to be replaced or the intubation needle 1 is separated and classified to be recycled, the sealing plug 39 is moved out through rotation, so that the pressing air bag 35 forms an opening, gas can flow out from the opening quickly, the limiting bag 32 is flat, and the normal process of pulling out the intubation needle 1 is guaranteed.

Referring to fig. 1 and 4, cannula needle 1 is connected with catheter 2 one end through preventing dragging structure 4, prevent dragging structure 4 and include slip ring 41 and extension spring 42, cannula needle 1 tail end inserts inside and sliding connection of catheter 2 one end, catheter 2 adjacent end inside wall is equipped with ring channel 43, the inside sliding connection slip ring 41 of ring channel 43, catheter 2 inserts the end lateral wall fixed cover of inserting and establishes slip ring 41, catheter 2 inserts the end lateral wall and encircles and set up extension spring 42, the one end of extension spring 42 and the lateral wall fixed connection of slip ring 41, the extension spring 42 other end and the adjacent lateral wall fixed connection of ring channel 43.

It should be noted that, doctor or walking patient touch catheter 2 carelessly, make catheter 2 and intubation needle 1 take place to drop the possibility easily, when dragging the in-process for slip ring 41 drags, and extension spring 42 is dragged long in the twinkling of an eye, receives extension spring 42 rebound force effect, can cushion and touch the power in the twinkling of an eye, thereby reduces catheter 2 and intubation needle 1 and takes place to separate the possibility, makes to drag the process and produces the possibility that drops and reduce, guarantees to use the fastness.

Referring to fig. 1 and 4, the outer diameter of the tension spring 42 is smaller than the inner diameter of the annular groove 43, so that the tension spring 42 can be normally pulled long in the annular groove 43.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (6)

1. An anti-needle-drop device for an infusion apparatus, characterized by comprising:

the intubation needle (1) is characterized in that one end of the intubation needle (1) is in a conical shape;

the catheter (2), one end of the intubation needle (1) far away from the conical shape is installed with the catheter (2);

anti-drop structure (3), anti-drop structure (3) is connected in the one end lateral wall of intubate needle (1), anti-drop structure (3) includes spacing lagging (31), spacing bag (32), air duct (33), press gasbag (35), check valve (36) and intake pipe (38), intubate needle (1) is located the toper end lateral wall and is equipped with two recess (34) that the symmetry set up, the spacing bag (32) of embedded face fixed connection assorted of recess (34), spacing bag (32) lateral wall intercommunication air duct (33), spacing lagging (31) is established to the lateral wall fixed cover that intubate needle (1) is located central point and put, gasbag (35) are pressed in the other end intercommunication of air duct (33), intubate needle (1) is kept away from toper one end lateral wall and is pressed gasbag (35) lateral wall and is connected, press gasbag (35) lateral surface intercommunication intake pipe (38), the adjacent ends of the air inlet pipe (38) and the air guide pipe (33) are respectively provided with a one-way valve (36);

the anti-pulling structure (4), the intubation needle (1) is connected with one end of the catheter (2) through the anti-pulling structure (4).

2. The needle drop prevention device for the infusion set according to claim 1, wherein the horizontal length of the pressing air bag (35) from the limiting sleeve plate (31) is 8-15 cm.

3. The needle drop prevention device for the infusion set according to claim 1, wherein the outer side wall of the intubation needle (1) is provided with two symmetrically arranged long grooves, one end of each long groove is communicated with the groove (34), and the air guide tube (33) is fixedly connected with the inner side surface of each long groove in an attached manner.

4. The needle drop prevention device for the infusion set according to claim 1, wherein the outer side surface of the pressing air bag (35) is in threaded connection with a sealing plug (39), and the outer side surface of the sealing plug (39) is provided with a rotary pull ring (37).

5. The needle drop prevention device for the infusion apparatus according to claim 1, wherein the anti-pulling structure (4) comprises a sliding ring (41) and a tension spring (42), the tail end of the cannula needle (1) is inserted into and slidably connected with one end of the catheter (2), an annular groove (43) is formed in the inner side wall of the adjacent end of the catheter (2), the sliding ring (41) is slidably connected with the inner portion of the annular groove (43), the sliding ring (41) is fixedly sleeved on the outer side wall of the insertion end of the catheter (2), the tension spring (42) is arranged on the outer side wall of the insertion end of the catheter (2) in a surrounding manner, one end of the tension spring (42) is fixedly connected with the side wall of the sliding ring (41), and the other end of the tension spring.

6. The needle drop prevention device for an infusion set according to claim 5, wherein the outer diameter of the tension spring (42) is smaller than the inner diameter of the annular groove (43).

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