TWM456822U - Intravenous drip delivery pipe joint structure - Google Patents

Description

Drip conveyor joint structure

This creation relates to a medical article, especially a drip tube joint structure.

As shown in Fig. 8, a conventional drip delivery tube includes an indwelling needle 8 and a dropper 9, and the indwelling needle 8 is composed of an outer needle 81 and an inner needle 82, the inner needle 82 The needle portion 821 is inserted into the needle portion 811 of the outer needle 81, and the head portion 822 of the inner needle 82 is passed through the groove 813 of the head portion 812 of the outer needle 81, and the groove 813 and the head are Portion 822 has a corresponding taper and is forced.

In use, the needle portion 811 of the outer needle 81 is first inserted into the venous blood vessel of the human body with the needle portion 821 of the inner needle 82, and the inner needle 82 is detached only to the needle portion of the outer needle 81. The 811 is placed in the venous blood vessel. At this time, as shown in Fig. 9, one of the drop tubes 9 has a tapered end portion 91 as the head 822 of the inner needle 82 is inserted into the concave portion of the outer needle 81. The trough 813 flows into the venous blood vessel by the drug liquid in the drip bottle. However, such a drip tube has the following problems:

1. When the engaging end 91 is inserted into the recess 813, only the taper is used to press each other. If a slight inadvertent or accidental touch occurs, the engaging end 91 is easily loosened in the recess 81. When the detachment needle 8 is attached to the venous blood vessel, the needle is inserted into the body to cause pain, and when the needle 8 is pulled out, the joint end 91 is removed. At this time, the engaging end 91 still has to be reinserted into the groove 81 in the direction in which the needle is inserted, which easily causes discomfort of secondary pain.

2. As shown in Fig. 10, before the engaging end 91 of the drip tube 9 is engaged with the recess 81 of the indwelling needle 8, a sleeve 92 is sleeved to prevent a source of contamination, but the joint end 91 has a certain The length of the sleeve 92 must also have a certain length for the sleeve to be engaged. However, although the dial block 921 is provided on both sides of one end of the sleeve 92, it is easy to be separated from the joint end 91 due to the long length. When it is skewed and caught, it causes troubles in the engagement of the indwelling needle 8 with the drip tube 9.

Therefore, how to solve the problem of the above-mentioned conventional drip conveying pipe is the main focus of this creation.

The main purpose of the present invention is to solve the above problems and provide a drip tube joint structure. By engaging the joint end of the dropper with the outer needle of the indwelling needle, the drip tube and the indwelling needle can be achieved. It does engage without causing air infiltration, and avoids secondary pain caused by pushing when engaged.

The second object of the present invention is that the cover body of the threaded portion that is disposed outside the joint end can be easily disengaged to facilitate the screwing of the threaded portion and the indwelling needle outside the joint end.

For the purposes of the foregoing, this creative department includes:

An indwelling needle comprising an outer needle and an inner needle, the outer needle having

a first needle portion of a soft material and a first head portion, the first head portion having a groove, the groove being naked at one end of the first head portion to form an opening, the first head portion being The groove has an internal threaded portion at one end of the opening, the inner needle has a second needle portion extending through the first needle portion, and the inner needle has a plugging force on the first head portion a second head in the groove;

a dropper having one end inserted at the insertion end of the drop bottle, and the other end having an engaging end for engaging the indwelling needle, the end of the engaging end having an external thread portion;

a cover body is connected to one end of a connecting portion, and the other end of the connecting portion is connected to a set of ring sleeves, wherein the socket ring sleeve is fixed by the drop tube adjacent to the joint end, and the cover system is disposed on the cover An external threaded portion of the joint end of the dropper;

When the outer needle is detached from the inner needle to expose the groove, the joint end is disengaged to expose the outer thread segment, and the external thread portion is screwed to the inner thread portion of the outer needle The outer needle is fixed.

The above and other objects and advantages of the present invention will become more apparent from the detailed description and the accompanying drawings.

Of course, the present invention is allowed to differ in some of the parts, or the arrangement of the parts, but the selected embodiments are described in detail in the present specification, and the construction thereof is shown in the drawings.

(customized part)

8‧‧‧Indwelling needle 81‧‧‧ outer needle

811‧‧‧Needle 812‧‧‧ head

813‧‧‧Needles 82‧‧‧ needles

821‧‧‧needle 822‧‧‧ head

9‧‧‧Dripper 91‧‧‧ joint end

92‧‧‧ casing 921‧‧ ‧ dial

(this part of the creation)

1‧‧‧Indwelling needle 2‧‧‧ dropper

21‧‧‧Interposing end 22‧‧‧ joint end

221‧‧‧ External threaded section

31‧‧‧Connecting section 32‧‧‧ socket

33‧‧‧ convex 4‧‧‧ outer needle

41‧‧‧ First head 42‧‧‧ first head

421‧‧‧ Groove 422‧‧‧ openings

423‧‧‧Needles 5‧‧‧Needles

51‧‧‧Second needle 52‧‧‧ second head

Figure 1 is a schematic plan view of the joint of the dropper and the indwelling needle of the present invention.

Figure 2 is a three-dimensional appearance of the indwelling needle of the present creation

Figure 3 is a schematic cross-sectional view of the indwelling needle of the present invention.

Figure 4 is a three-dimensional appearance of the dropper at the joint end of the creation.

Figure 5 is a schematic cross-sectional view of the dropper at the joint end of the present invention.

Figure 6 is a schematic diagram of the action of pulling the inner needle after the indwelling needle of the present invention is inserted into the venous blood vessel.

Fig. 7 is a schematic view showing the screwing of the joint end of the indwelling needle inserted into the venous blood vessel and the drip tube of the present invention.

Figure 8 is a three-dimensional appearance of a conventional indwelling needle

Figure 9 is a schematic view of the conventionally used tipping tube of the dropper and the indwelling needle for insertion and compression.

Figure 10 is a schematic cross-sectional view of a joint end of a conventional dropper tube with a sleeve

Please refer to FIG. 1 to FIG. 7 , which shows the structure of the embodiment selected for the creation of the present invention. This is for illustrative purposes only and is not limited by the structure in the patent application.

The embodiment provides a drip transfer tube joint structure, which is shown in FIG. 1 and includes an indwelling needle 1, a dropper 2 and a cover 3, and as shown in FIG. 2, the indwelling needle 1 is composed of An outer needle 4 and an inner needle 5 are formed, wherein:

As shown in the second to third figures, the outer needle 4 has a first needle portion 41 of a soft material and a first head portion 42. The first head portion 42 has a recess 421. One end of a head portion 42 is barely formed to form an opening 422. The first head portion 42 has an internal thread portion 423 at one end of the opening 422 in the recess 421. The inner needle portion 5 has a second needle portion 51. The second needle portion 51 extends through the first needle portion 41 of the outer needle 4, and the inner needle portion 5 has a second head portion 52, and is inserted into the second head portion 52 to be pressed against the first needle portion 52. In the recess 421 of a head 42. In the embodiment, the groove 421 is a tapered groove, and the second head 52 also has a taper and can be correspondingly inserted into the groove 421.

As shown in FIG. 1 and FIG. 4 to FIG. 5, the dropper 2 has an insertion end 21 at one end and an engagement end 22 at the other end. The dropper 2 is inserted into the drop bottle at the insertion end 21. (not shown), and the indwelling needle 1 is joined by the engaging end 22, and the end of the engaging end 22 has an external thread portion 221.

In addition, a cover 3 is connected to one end of the connecting portion 31, and the other end of the connecting portion 31 is connected to a set of connecting rings 32. The sleeve ring 32 is sleeved on the dropper 2 adjacent to the engaging end 22 The cover body 3 is fixed to the external thread portion 221 of the joint end 22 of the drip tube 2 . In this embodiment, one side of the cover body 3 has a convex portion 33, which facilitates the finger to disengage the cover body 3 and disengage from the joint end 22.

Referring to FIG. 6, when the drip tube engaging structure of the present invention is in use, the operator holds the indwelling needle 1 by the second needle portion 51 of the inner needle 5 at the first needle portion of the outer needle 4. 41 The exposed tip is inserted into the venous blood vessel of the human body. At this time, the first needle portion 41 of the outer needle 4 is also inserted into the venous blood vessel, and the inner needle 5 can be detached to make the first needle portion 41 is left in the vein. At this time, since the inner needle 5 has been detached, the first head 42 of the outer needle 4 exposes the recess 421, and the operator can press the outer needle 4 with one hand to prevent blood from flowing out, and the other hand can follow the trend. At the engaging end 22 of the dropper 2, the convex portion 33 is moved to easily disengage the cover 3 so that the end of the engaging end 22 of the drip tube 2 exposes the externally threaded portion 221, and as in the seventh As shown in the figure, the male screw portion 221 is slightly screwed into the female screw portion 423 of the first head portion 42 of the outer needle 4, and is screwed to the female screw portion 423 to be coupled to the outer needle 4.

It is not difficult to find out from the above that the advantages of this creation are:

1. When the joint end 22 of the drip tube 2 is screwed into the internal thread portion 423 in the recess 421 of the outer needle 4, the mutual locking portion 421 can be surely locked to each other, if a slight carelessness or mistake Compared with the prior art, the engaging end 22 does not loosen in the recess 421, so that the gap can be prevented from infiltrating the air; in addition, when the indwelling needle is inserted into the vein, the When the engaging end 22 is screwed into the recess 421, the engaging end 22 can be prevented from being inserted into the recess 421 in the direction of the pin to prevent the second pain.

2. The engaging end 22 of the drip tube 2 and the recess 421 of the outer needle 4 are screwed and fixed. Since the engaging end 22 is only covered by the cover 3 by the threaded portion 221 outside the end, the operator only The cover body 3 can be easily disengaged with a single-handed finger, and the external thread portion 221 of the joint end 22 can be exposed to be screwed with the female screw portion 423 in the recess 421 of the outer needle 4. Compared with the prior art, it is quite convenient and fast in operation.

The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention.

From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

2‧‧‧ dropper

22‧‧‧ joint end

221‧‧‧External thread

3‧‧‧ cover

31‧‧‧Connecting Department

32‧‧‧ Socket ring

33‧‧‧ convex

4‧‧‧External needle

41‧‧‧First needle

42‧‧‧ first head

421‧‧‧ Groove

423‧‧‧Threaded Department

5‧‧‧Needle needle

Claims (3)

A drip tube joint structure comprising:
An indwelling needle comprising an outer needle and an inner needle, the outer needle having a first needle portion of a soft material and a first head, the first head having a groove, the groove being at the first head One end of the portion is barely open to form an opening, the first head having an internal thread portion at one end of the opening in the groove, the inner needle having a second needle extending through the first needle portion And the inner needle has a second head that is inserted into the groove of the first head;
a dropper having one end inserted at the insertion end of the drop bottle, and the other end having an engaging end for engaging the indwelling needle, the end of the engaging end having an external thread portion;
a cover body is connected to one end of a connecting portion, and the other end of the connecting portion is connected to a set of ring sleeves, wherein the socket ring sleeve is fixed by the drop tube adjacent to the joint end, and the cover system is disposed on the cover An external threaded portion of the joint end of the dropper;
When the outer needle is detached from the inner needle to expose the groove, the joint end is disengaged to expose the outer thread segment, and the external thread portion is screwed to the inner thread portion of the outer needle The outer needle is fixed. The drip tube joint structure according to claim 1, wherein one side of the cover body has a convex portion for facilitating the finger to be detached. The drip tube joint structure according to claim 1, wherein the groove is a tapered groove, and the second head also has a taper and can be correspondingly inserted into the groove. in.