TWM503228U - Needle-free connector assembly featuring easy-to-wash function - Google Patents

Description

Easy flush needleless connector assembly

A needle-free connector, especially an easy-to-flush needle-free connector assembly, which is convenient for the user to sterilize and avoids cross-contamination of the patient or improper disinfection of different liquid residues.

The conventional medical needle connector has a cover portion, a Y-shaped tube and a medicating cap, the cover portion has a chamber and an upper opening, and the Y-shaped tube is detachably coupled to the cover portion, and The Y-shaped tube has a first-class channel and a coupling groove, and the lower end of the medicated cap is coupled to the coupling groove of the Y-shaped tube, and the upper end of the medicated cap is disposed in the housing of the cover portion, and the medicated cap is worn on the medicated cap At least one perforation is provided, wherein the refilling cap is composed of an elastic material and can be reused through sterilization.

When the user inserts the syringe containing the medical liquid into the upper opening of the cover portion, one end of the syringe has a needle seat, and the needle holder presses the upper end portion of the medicating cap, causing the medicated cap to bend. At this time, the liquid medicine located in the syringe allows the liquid medicine flowing into the drug applicator to flow into the inner space of the drug adding cap through the perforation on the drug adding cap and is drained to the patient. However, when the liquid medicine in the syringe is drained to pull out the needle connector, the negative pressure in the syringe may form blood in the patient body or the liquid medicine may flow back into the needle connector. At this time, the inside of the filling cap of the needle connector may be disinfected by saline injection due to contamination of blood or liquid medicine, but may be caused by incomplete disinfection due to the narrow perforation space inside the filling cap. More saline must be used for injection disinfection.

The present inventors have created a kind of easy-to-flush needle-free connector assembly in view of the shortcomings of the prior art medical needle connector which is not easy to be disinfected and caused by safety concerns during repeated use.

For the purpose of the above creation, the technical means adopted by the present invention is to design an easy-washing needle-free connector assembly, comprising: a cover body having a chamber, a connection port and an insertion hole, the chamber being formed therein a connecting body is formed at one end of the cover body, the insertion hole is formed through the other end of the cover body; a drainage member is detachably coupled to the cover body, and has a joint portion, first-class And a joint portion formed at one end of the drainage member, and the joint portion is detachably connected to the connection port of the cover body, the flow passage is formed on the drainage member and the chamber Connected to the drainage member; and a resilient cap coupled to the sleeve of the drainage member, having a cap portion and a cap body, the cap body being formed on the cap portion The cap has a thickened inner wall and an extended wall formed on one side of the cap and having a flange extending downward from the thickened inner wall, and the cap Folding has two sheets and a hemming corner The two sheets are relatively bendable, and the flange turning portion is formed between the two sheets, the extending wall is formed on the other side of the cap body, and has an extending portion extending downward from the extending wall And the extension portion has two sheets and an extension turning portion, the two sheets can be folded relative to each other, and the extension turning portion is formed between the two sheets.

The advantage of the present invention is that after the elastic cap body is used, when the elastic cap is rebounded and the liquid is returned to the blood vessel of the patient, the inner part of the elastic cap body is not polluted and does not need to be used. Worried that the inside of the elastic cap body may be sterilized uncleanly, causing a conflict when the patient is cross-infected during re-use or when the medicinal solution remains uncleaned when injecting different liquid chemicals.

The cap body has a ring fixing portion formed on the bottom edge of the cap body, and the ring fixing portion is tightly coupled in the sleeve portion.

The thickness of the two sheets is tapered toward the folded portion, and the thickness of the folded portion is smaller than the average thickness of the two sheets, and the thickness of the extended turning portion is greater than the thickness of the folded portion.

The cap portion has a top surface and an outer flange formed on a periphery of the top surface and protruding radially outward, and the outer flange is airtightly abutted when set in a preset state The inner wall of the insertion hole.

10‧‧‧ cover

101‧‧ ‧ room

11‧‧‧Connecting port

12‧‧‧Insert hole

121‧‧‧External thread

20‧‧‧ Drainage members

21‧‧‧Combination Department

22‧‧‧ flow path

23‧‧‧ Combination slot

24‧‧‧ Included

30‧‧‧Flexible cap

31‧‧‧Cap

311‧‧‧ top surface

312‧‧‧Outer flange

32‧‧‧Cap

321‧‧‧ Thickened inner wall

3211‧‧‧Folding

3212‧‧‧Sheet

3213‧‧‧Folding and turning part

322‧‧‧Extended wall

3221‧‧‧Extension

3222‧‧‧Sheet

3223‧‧‧Extension turning section

323‧‧‧ Ring Fixed Department

90‧‧‧Syringe

Figure 1 is a side cross-sectional view of the creation.

Figure 2 is a cross-sectional view showing the state of implementation of the present invention.

The technical means adopted by the present invention for achieving the intended purpose are further explained below in conjunction with the drawings and the preferred embodiments of the present invention.

Referring to FIG. 1 and FIG. 2, the present invention relates to a flushable needleless connector assembly comprising a cover 10, a drainage member 20 and an elastic cap 30.

The cover body 10 has a cavity 101, a connection port 11 and an insertion hole 12 formed in the cover body 10. The connection port 11 is formed at one end of the cover body 10, and the insertion hole 12 is penetrated. The other end of the cover body 10 is formed, and the outer side surface of the insertion hole 12 has an external thread portion 121. The insertion hole 12 is for a syringe 90 to be inserted and introduced into the drug solution.

The drainage member 20 is detachably coupled to the cover 10. The drainage member 20 has a joint portion 21, a first-class passage 22, a coupling groove 23, and a set portion 24. The joint portion 21 is formed at one end of the drain member 20, and the joint portion 21 is detachably connected to the joint port 11 of the cover body 10. The flow path 22 is formed through the flow guiding member 20 and communicates with the chamber 101. The coupling groove 23 is formed at the other end of the flow guiding member 20. The coupling groove 23 can be connected to a needle connecting tube disposed on the patient, so that the patient does not need to repeatedly pull out or insert the needle when replacing or replenishing the liquid medicine. The fitting portion 24 is formed on the flow guiding member 20.

Referring to FIG. 2 , the elastic cap 30 is coupled to the sleeve portion 24 . The elastic cap body 30 is a hollow cap body and is made of an elastic material. The elastic cap 30 has a cap portion 31 and a cap 32.

The cap portion 31 has a top surface 311 and an outer flange 312 formed on a periphery of the top surface 311 and projecting radially outward, and the outer flange 312 is disposed in a preset state. Airtight against the inner wall of the insertion hole 12.

The cap 32 is formed on the cap portion 31 and the cap 32 is cylindrical and has a thickened inner wall 321, an extension wall 322, and a ring fixing portion 323.

The thickened inner wall 321 is formed on one side of the cap 32 and has a folded edge 3211. The thickened inner wall 321 allows the cap 32 to be pressed against the syringe 90 held by the user. It is easy to bend or twist. The flange 3211 extends downward from the thickened inner wall 321 and has two sheets 3212 and a flange turning portion 3213. The two sheets 3212 can be relatively bent and formed in an S shape. The folded edge portion 3213 is formed between the two sheets 3212. The thickness of the two sheets 3212 is tapered toward the folded portion 3213, and the thickness of the folded portion 3213 is smaller than two sheets. The average thickness of 3212. It allows the user to compress the hemming 3211 without difficulty.

The extension wall 322 is formed on the other side of the cap 32 and has a relatively thick inner wall 321 , and has an extension portion 3221 extending downward from the extension wall 322 and having two bodies 3222 And an extension turning portion 3223, the two bodies 3222 can be relatively bent. The extension turning portion 3223 is formed on the extending wall 322 and located between the two sheets 3222. The thickness of the extending turning portion 3223 is greater than the thickness of the flange turning portion 3213, and the extending wall 322 can be disposed on the cap 32. When the syringe is pressed by the user, the elastic cap 30 is tilted toward the side of the extension wall 322, so that the liquid chemical in the syringe can smoothly face the extension wall 322 in the chamber 101. The side flows, and the drug solution is drained to the flow path 22 of the drainage member 20, and then flows into the patient through the needle connection tube. When the thickened inner wall 321 is compressed, the ring fixing portion 323 is affected by the compression direction of the thickened inner wall 321 and is pulled out from the fitting portion 24, but the extension turning portion 3223 The thickness is thick and can be directly stretched after being subjected to a force without causing the ring fixing portion 323 to be pulled out.

The ring fixing portion 323 is formed on the bottom edge of the cap body 32, and the elastic cap body 30 can be tightly coupled into the sleeve portion 24, so that the elastic cap body 30 can be elasticized when the needle is used after use. The cap body 30 is rebounded and squeezed to return the liquid to the blood vessel of the patient, and the inside of the elastic cap 30 is not contaminated, and the user only needs to disinfect the elastic cap when sterilizing the elastic cap 30. The outer side of the 30 can be used, and there is no need to worry that the inside of the elastic cap body 30 may be unclean, resulting in cross-contamination between patients during re-use or a conflict of liquid medicine when injecting different liquid medicines.

With the above technical means, the advantages of this creation are:

1. After the elastic cap 30 is used, even if the patient's blood or body fluid flows back into the easy-to-rinsing needle-free connector assembly due to the negative pressure, the inside of the elastic cap 30 is not contaminated.

2. When the user injects and sterilizes the elastic cap 30, it is only necessary to sterilize the outer side of the elastic cap 30, and there is no need to worry that the inside of the elastic cap 30 may be sterilized, resulting in cross infection of the patient during re-use or It is a situation in which the residual flow of the drug solution is not clean and conflicts when different drug solutions are injected.

3. The flange 3211 allows the user to compress the thickened inner wall 321 without any effort. The extension 3221 allows the extension wall 322 to allow the cap 32 to be pressed by the needle held by the user. The elastic cap 30 is tilted toward the side of the thickened inner wall 321 . At this time, the extending portion 3221 receives the thickened inner wall 321 . The tendency of the compression is extended, whereby the tendency of the ring fixing portion 323 to be compressed by the thickened inner wall 321 is prevented from being pulled up, so that the liquid chemical in the syringe can smoothly face the extending wall in the chamber 101. The side of the 322 flows, and the liquid medicine is drained to the flow path 22 of the drainage member 20, and then flows into the patient through the needle connection tube.

10‧‧‧ cover

101‧‧ ‧ room

121‧‧‧External thread

20‧‧‧ Drainage members

21‧‧‧Combination Department

22‧‧‧ flow path

23‧‧‧ Combination slot

24‧‧‧ Included

30‧‧‧Flexible cap

31‧‧‧Cap

311‧‧‧ top surface

312‧‧‧Outer flange

32‧‧‧Cap

321‧‧‧ Thickened inner wall

3211‧‧‧Folding

3212‧‧‧Sheet

3213‧‧‧Folding and turning part

322‧‧‧Extended wall

3221‧‧‧Extension

3222‧‧‧Sheet

3223‧‧‧Extension turning section

323‧‧‧ Ring Fixed Department

Claims (4)

An easy-to-flush needle-free connector assembly comprising: a cover having a chamber, a connecting port and an insertion hole, the chamber being formed in the cover, the connecting mouth being formed at one end of the cover The insertion hole is formed through the other end of the cover body; a drainage member is detachably coupled to the cover body, and has a joint portion, a first-class track and a set portion, and the joint portion is formed on the drainage One of the end of the member, and the joint is detachably connected to the joint of the cover body, the flow passage is formed on the flow guiding member and communicates with the chamber, the sleeve portion is formed on the drainage member; And a resilient cap body coupled to the sleeve of the drainage member, having a cap portion and a cap body formed on the cap portion, the cap body having a thickened inner wall and an extension a wall, the thickened inner wall is formed on one side of the cap body, and has a folded edge extending downward from the thickened inner wall, and the folded edge has two sheets and a folded edge portion, two The sheet body can be folded relative to the folded edge forming portion to be formed in two thin The extension wall is formed on the other side of the cap body and has an extension portion extending downward from the extension wall, and the extension portion has two sheets and an extension turning portion, two sheets The foldable portion can be folded relative to each other, and the extended turning portion is formed between the two sheets. The easy-to-flush needle-free connector assembly of claim 1, wherein the cap body has a ring fixing portion formed on a bottom edge of the cap body, and the ring fixing portion is tightly coupled to the cap portion . The easy-to-rinsing needle-free connector assembly of claim 1 or 2, wherein the thickness of the two sheets is tapered toward the heel turning portion, and the thickness of the hemming turning portion is smaller than the average thickness of the two sheets The thickness of the extended turning portion is greater than the thickness of the folded portion. The rinsable needleless connector assembly of claim 3, wherein the cap portion has a top surface and an outer flange formed on a periphery of the top surface and projecting radially outwardly, And the outer flange is airtight against the inner wall of the insertion hole when the preset state is set.