CN210078476U - Anti-bending infusion needle - Google Patents

Abstract

The utility model provides an anti-bending transfusion needle, which comprises a puncture needle, a needle handle tube and a transfusion tube which are connected in sequence; the infusion tube comprises a sleeving section and a hose section, and the sleeving section is sleeved on the outer circumferential surface of the needle handle tube; the section overcoat of cup jointing is equipped with the buffer member, and the buffer member extends the direction that deviates from the section of cup jointing. The utility model provides a prevent transfer line that bends can effectually prevent that the junction of the needle handle pipe of soft transfer line and stereoplasm from taking place to bend, effectively avoids liquid to block up, guarantees that the infusion normally goes on.

Description

Anti-bending infusion needle

Technical Field

The utility model relates to the field of medical equipment, in particular to an anti-bending infusion needle.

Background

Infusion needle is the indispensable equipment clinically, and current infusion needle is the hose including pjncture needle, needle handle pipe and the transfer line that connects gradually, needle handle pipe, and the needle handle pipe is the rigid pipe, and during the use, the junction of the needle handle pipe of soft transfer line and stereoplasm takes place to bend easily, causes the liquid to block up, and then influences the infusion and normally go on.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-bending transfer line can effectually prevent that the junction of the needle handle pipe of soft transfer line and stereoplasm from taking place to bend, effectively avoids liquid to block up, guarantees that the infusion normally goes on.

The embodiment of the utility model is realized like this: an anti-bending infusion needle comprises a puncture needle, a needle handle tube and an infusion tube which are connected in sequence; the infusion tube comprises a sleeving section and a hose section, and the sleeving section is sleeved on the outer circumferential surface of the needle handle tube; the section overcoat of cup jointing is equipped with the buffer member, and the buffer member extends the direction that deviates from the section of cup jointing.

Furthermore, the buffer component is a buffer sleeve made of PVC material; the wall thickness of the buffer sleeve is gradually reduced along the direction from the sleeve joint section to the hose section.

Furthermore, the outer diameter of the end part of the buffer sleeve close to one end of the sleeving section is 1.5 to 3 times of the outer diameter of the infusion tube; the outer diameter of the end part of the buffer sleeve close to one end of the hose section is 1.1 to 1.4 times of the outer diameter of the infusion tube; the inner diameter of the buffer sleeve is 1.01 to 1.3 times of the outer diameter of the infusion tube.

Furthermore, a plurality of concave rings are concavely arranged on the outer surface of the buffer sleeve in the direction close to the central axis of the buffer sleeve, and the concave rings are uniformly distributed in the direction of the central axis of the buffer sleeve.

Further, the inner surface of the buffer sleeve, which is far away from one end of the needle handle pipe, is provided with a first fillet.

Furthermore, the buffer part is a telescopic pipe made of PVC material.

Furthermore, the extension tube comprises a corrugated tube section and a pair of connecting tubes arranged at two ends of the corrugated tube section, and the outer diameter of each connecting tube is 1.1-1.4 times of the outer diameter of the infusion tube; the inner diameter of the extension tube is 1.01 to 1.3 times of the outer diameter of the infusion tube.

Furthermore, the buffer component is a PVC expansion spring.

Furthermore, the outer diameter of the expansion spring is 1.1 to 1.4 times of the outer diameter of the infusion tube; the outer diameter of the extension spring is 1.01-1.3 times of the outer diameter of the infusion tube.

Further, the axial length of the buffer member is 1.5-2 cm.

The utility model has the advantages that:

(1) the utility model discloses an anti-bending infusion needle, the cover is equipped with the buffer part outside the cup joint section, and the buffer part extends away from the direction of the cup joint section, when the infusion tube has the tendency of bending, the buffer part can act on an acting force opposite to the bending direction, prevent the occurrence of bending, thereby effectively avoiding the occurrence of bending phenomenon, making the infusion needle use smoothly, avoiding the occurrence of liquid blockage to influence the normal operation of infusion;

(2) the utility model discloses a prevent that infusion needle's buffering part detachable cover is located outside the infusion pipe, but through reuse behind the disinfection treatment, can effectual reduction disposable consumptive material quantity, reduce use cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a conventional infusion needle;

FIG. 2 is a schematic structural diagram of an anti-bending infusion needle in embodiment 1;

FIG. 3 is a partial schematic structural view of an anti-bending infusion needle in embodiment 1;

FIG. 4 is a schematic structural diagram of an anti-bending infusion needle of embodiment 2;

FIG. 5 is a partial schematic structural view of an anti-bending infusion needle of embodiment 2;

FIG. 6 is a schematic structural diagram of an anti-bending infusion needle of embodiment 3;

FIG. 7 is a partial structural schematic view of an anti-bending infusion needle of embodiment 3;

FIG. 8 is a schematic structural diagram of an anti-bending infusion needle of embodiment 4.

Icon:

1-puncture needle, 2-needle handle tube, 21-needle handle, 3-infusion tube, 31-sleeving section, 32-hose section, 4-buffer sleeve, 41-sleeve, 42-lantern ring, 43-first round angle, 44-concave ring, 5-telescopic tube, 51-corrugated tube section, 52-connecting tube, 53-second round angle and 6-telescopic spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Example 1

As can be seen from the attached figure 1, the prior transfusion needle comprises a puncture needle 1, a needle handle tube 2 and a transfusion tube 3 which are connected in sequence; the needle handle 21 is arranged outside the needle handle tube 2, the sleeving section 31 of the infusion tube is sleeved on the needle handle tube 2, and when the infusion tube is applied, the sleeving section 31 and the hose section 32 are bent due to the arrangement of the hard needle handle tube 2 and the soft infusion tube 3, so that the infusion is influenced.

As shown in figures 2 and 3: the embodiment provides an anti-bending infusion needle, which comprises a puncture needle 1, a needle handle tube 2 and an infusion tube 3 which are connected in sequence; the infusion tube 3 comprises a sleeving connection section 31 and a hose section 32, and the sleeving connection section 31 is sleeved on the outer circumferential surface of the needle handle tube 2; the sleeving section 31 is externally sleeved with a buffer part, and the buffer part extends in the direction departing from the sleeving section 31. When the infusion tube 3 has a bending trend, the buffer component can act on an acting force opposite to the bending direction to prevent the bending, so that the bending phenomenon is effectively avoided, the infusion needle is smoothly used, and the influence on the infusion process caused by the liquid blockage is avoided.

In this embodiment, the buffer member is a buffer sleeve 4 made of PVC; the wall thickness of the damping sleeve 4 decreases in the direction from the sleeve portion 31 to the tube portion 32. The material of the buffer sleeve 4 and the material of the infusion tube 3 are completely the same in this embodiment. The wall thickness of one end of the sleeving section 31 is thick, so that when the infusion tube 3 at the position has a bending tendency, the thick wall thickness of the buffer sleeve 4 outside the infusion tube 3 is difficult to bend, and the bending condition of the infusion tube 3 is avoided; the buffer sleeve 4 at one end of the hose section 32 has a thin wall, so that if the infusion tube 3 tends to bend in a certain direction, the buffer sleeve 4 also tends to bend in the direction, and the buffer sleeve 4 and the infusion tube 3 are made of the same material, so that the buffer sleeve 4 and the infusion tube 3 are not bent to block liquid.

In this embodiment, the outer diameter of the end part of the buffer sleeve 4 close to one end of the sleeve joint section 31 is 1.6 times of the outer diameter of the infusion tube 3; the outer diameter of the end part of the buffer sleeve 4 close to one end of the hose section 32 is 1.1 times of the outer diameter of the infusion tube 3; the inner diameter of the buffer sleeve 4 is 1.01 times of the outer diameter of the transfusion tube 3. The inner diameter and the outer diameter of the buffer sleeve 4 are set to ensure that the buffer sleeve 4 can be stably sleeved outside the infusion tube 3, and the requirement that the bending can be prevented at the joint of the needle handle tube 22 and the infusion tube 33 and the bending between the end far away from the needle handle tube 22 and the infusion tube 33 can be prevented is met.

Alternatively, the buffer sleeve 4 of the present embodiment may be integrally formed with the infusion tube 3, that is, the buffer sleeve 4 of the present embodiment is a part of the infusion tube 3, and has one end sleeved outside the needle handle tube 2 and the other end integrally formed with the infusion tube 3.

In this embodiment, the inner surface of the buffer sleeve 4 remote from the needle shaft tube 2 is provided with a first fillet 43. The arrangement of the first round angle 43 enables the contact surface of the buffer sleeve 4 and the infusion tube 3 to be an arc-shaped surface when the infusion tube 3 is bent, thereby further preventing the infusion tube 3 from being bent.

In the embodiment, the axial length of the buffering component is 1.5-2cm, and practical tests show that the buffering component within the length range can play a good role in preventing bending and cannot influence the normal use of the infusion needle.

Example 2

As shown in fig. 4 and 5, the present embodiment is different from embodiment 1 in that: the outer surface of the buffer sleeve 4 is concavely provided with a plurality of concave rings 44 towards the direction of the central axis close to the buffer sleeve 4, and the plurality of concave rings 44 are uniformly distributed along the direction of the central axis of the buffer sleeve 4. The evenly distributed concave rings 44 enable the buffer sleeve 4 to form a sleeve 41 and a plurality of lantern rings 42 which are evenly distributed and fixed outside the sleeve 41, the evenly distributed lantern rings 42 enable the wall thickness of the buffer sleeve 4 to be gradually reduced, the lantern ring 42 with the larger outer diameter is arranged to play a role of bending prevention, and the sleeve 41 with the smaller outer diameter is arranged to enable the infusion tube 3 in the buffer sleeve 4 not to be changed into a straight tube and to be bent at a certain angle as required.

Example 3

As shown in fig. 6 and 7: the embodiment provides an anti-bending infusion needle, and the anti-bending infusion needle of the embodiment is different from the embodiment 1 in that:

the buffer member of this embodiment is a PVC telescopic tube 5. When the infusion tube 3 tends to bend, one side of the telescopic tube 5 is correspondingly compressed and stretched, and the stretching side exerts a certain reaction force on the compression of the compression side, so that the infusion tube 3 is not bent due to too large bending degree, and the liquid cannot be blocked.

The telescopic tube 5 of the present embodiment includes a bellows section 51 and a pair of connection tubes 52 provided at both ends of the bellows section 51, and the outer diameter of the connection tubes 52 is 1.1 times the outer diameter of the infusion tube 3; the inner diameter of the extension tube 5 is 1.01 times the outer diameter of the infusion tube 3. The principle of dimensioning the inner and outer diameters of the connecting pipe 52 is the same as that of dimensioning the inner and outer diameters of the cushion cover 4 in embodiment 1.

In this embodiment, the inner surface of the connecting tube 52 at the hose section 32 away from the socket section 31 has a second rounded corner 53. Due to the arrangement of the second round angle 53, when the infusion tube 3 is bent, the contact surface between the connecting tube 52 and the infusion tube 3 is an arc-shaped surface, so that the infusion tube 3 is further prevented from being bent.

Example 4

As shown in fig. 8: the embodiment provides an anti-bending infusion needle, and the anti-bending infusion needle of the embodiment is different from the embodiment 1 in that:

the buffer member of this embodiment is a PVC expansion spring 6. When the infusion tube 3 tends to bend, the extension spring 6 can act on an acting force opposite to the bending direction to prevent the bending from occurring.

In the embodiment, the outer diameter of the extension spring 6 is 1.1 times of the outer diameter of the infusion tube 3; the inner diameter of the extension spring 6 is 1.01 times of the outer diameter of the infusion tube 3.

To sum up, the utility model discloses a prevent transfusion needle that bends can effectually prevent that the junction of transfer line 3 and needle handle pipe 2 from taking place the condition of bending, avoids the infusion in-process liquid to block up and influence normal infusion.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An anti-bending infusion needle is characterized in that: comprises a puncture needle, a needle handle tube and a transfusion tube which are connected in sequence;

the infusion tube comprises a sleeving connection section and a hose section, and the sleeving connection section is sleeved on the outer circumferential surface of the needle handle tube; the section overcoat of cup jointing is equipped with the buffer member, the buffer member prolongs and deviates from the direction of the section of cup jointing extends.

2. The anti-bending infusion needle according to claim 1, characterized in that: the buffer component is a buffer sleeve made of PVC material; the wall thickness of the buffer sleeve is gradually reduced along the direction from the sleeve joint section to the hose section.

3. The anti-bending infusion needle according to claim 2, characterized in that: the outer diameter of the end part of the buffer sleeve close to one end of the sleeving connection section is 1.5-3 times of the outer diameter of the infusion tube; the outer diameter of the end part of the buffer sleeve close to one end of the hose section is 1.1 to 1.4 times of the outer diameter of the infusion tube; the inner diameter of the buffer sleeve is 1.01 to 1.3 times of the outer diameter of the infusion tube.

4. The anti-bending infusion needle according to claim 3, characterized in that: the outer surface of the buffer sleeve is concavely provided with a plurality of concave rings towards the direction close to the central axis of the buffer sleeve, and the concave rings are uniformly distributed along the direction of the central axis of the buffer sleeve.

5. The anti-bending infusion needle according to claim 2, characterized in that: the inner surface of one end, far away from the needle handle tube, of the buffer sleeve is provided with a first round angle.

6. The anti-bending infusion needle according to claim 2, characterized in that: the buffer component is a telescopic pipe made of PVC materials.

7. The anti-bending infusion needle according to claim 6, characterized in that: the extension tube comprises a corrugated tube section and a pair of connecting tubes arranged at two ends of the corrugated tube section, and the outer diameter of each connecting tube is 1.1-1.4 times of the outer diameter of the infusion tube; the inner diameter of the extension tube is 1.01-1.3 times of the outer diameter of the infusion tube.

8. The anti-bending infusion needle according to claim 2, characterized in that: the buffer component is a PVC expansion spring.

9. The anti-bending infusion needle according to claim 8, characterized in that: the outer diameter of the telescopic spring is 1.1-1.4 times of the outer diameter of the infusion tube; the inner diameter of the telescopic spring is 1.01-1.3 times of the outer diameter of the infusion tube.

10. The anti-bending infusion needle according to claim 1, characterized in that: the axial length of the buffer component is 1.5-2 cm.

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