TWM453508U - Needle-free connector - Google Patents

Description

Needle-free connector

The present invention relates to a needle-free joint, and more particularly to a needle-free joint having an elastic structure.

Traditionally, if a drug solution is to be injected into a catheter or a drip bottle, the syringe solution is generally used to inject the drug solution in the syringe into the catheter or the drip bottle, so that the drug solution flows into the disease through an infusion tube. Suffering from the body. The traditional syringe must set a needle. Because of the design of the needle, the medical staff has the risk of being pinned. In order to avoid this risk, different types of needle-free joints have been developed one after another. Complex and expensive, and often have problems such as poor leakage prevention.

For this reason, in view of the lack of the prior art, the applicant has overcome the shortcomings of the traditional needle-free joints, continuously researched and improved it, and proved that it is feasible through trials, and then created the "needle-free joint" of the case. To improve the lack of the above-mentioned methods of use.

The main purpose of this creation is to provide a needle-free joint that controls the opening and closing of the liquid passage through a flexible and flexible frame. The structure is simple, the cost is low, the assembly and operation are extremely simple, and at the same time, the airtightness is good. Leakproof effect.

According to the above object, the present invention provides a needle-free connector for connecting a catheter, the needle-free connector comprising: a housing having a first hollow tube and a first engaging portion, the first hollow tube coupling An elastic frame body is disposed in the casing, and the elastic frame body has a first blocking portion, a second gear portion, a second engaging portion and a third engaging portion. The second engaging portion is configured to engage the first engaging portion; a rod body is received in the elastic frame body, the rod body has a second hollow tube, an engaging ring, a retaining ring and a a solid portion, wherein the second hollow tube is sleeved in the first hollow tube, and the snap ring is sleeved on the third engagement tube And abutting against the first stop, the retaining ring abuts against the second gear; and a cap coupled to the housing for receiving the solid portion, wherein when a needle is used When the syringe pushes against the solid portion, the rod body pushes the elastic frame body to form a slit between the rod body and the casing, and when the needle-free injection cylinder leaves the solid portion, the rod body and the shell The body is restored to the close state.

Based on the above concept, the housing further includes a first external thread for fixing the catheter.

Based on the above concept, the rod body further includes a lateral through hole communicating with the second hollow tube.

Based on the above concept, the one end of the solid portion has a cross indentation.

Based on the above concept, the cap further includes a second external thread for fixing the needle-free syringe.

Therefore, the needle-free joint provided by the present invention has a light structure, is low in manufacturing cost, has low technical difficulty, and can produce a good sealing and abutting effect, so that the liquid is not easily exposed, and thus has a great commercial value.

11‧‧‧Shell

12‧‧‧Cap

13‧‧‧Flexible frame

14‧‧‧ rod body

141‧‧ ‧cross dent

21‧‧‧ housing

211‧‧‧First external thread

22‧‧‧Cap

221‧‧‧Second external thread

23‧‧‧Flexible frame

231‧‧‧ first stop

232‧‧‧second stop

24‧‧‧ rod body

31‧‧‧Shell

311‧‧‧Second external thread

312‧‧ First First Joint Department

313‧‧‧First hollow tube

41‧‧‧Flexible frame

411‧‧‧ first stop

412‧‧‧second stop

413‧‧‧Second engagement department

414‧‧‧ Third Clamping Department

51‧‧‧ rod body

511‧‧‧Second hollow tube

512‧‧‧Card ring

513‧‧ ‧ retaining ring

514‧‧‧ Solid Department

515‧‧‧Horizontal through hole

516‧‧ ‧cross dent

1 is a perspective view of the creation; FIG. 2 is a side perspective view of the creation; FIG. 3 is a side perspective view of a casing of the creation; FIG. 4 is a perspective view of a flexible frame; Figure 5 is a perspective view of a creation of a rod.

The present invention will be fully understood from the following description of the embodiments, and the skilled person in the art can be practiced by the present invention. However, the implementation of the present invention is not limited by the following embodiments.

In order to facilitate the review committee to have a better understanding and understanding of the technical means and operation process of the present invention, the embodiments are combined with the drawings, and the details are as follows.

Please refer to Figure 1, which is a perspective view of the creation. The needle-free connector of the present invention is used for connecting a catheter (not shown) through which the medicament can enter the patient, the needle-free joint comprising: a housing 11, a cap 12, and an elastic frame 13 and a rod body 14, wherein the rod body 14 is first combined with the elastic frame body 13 and then placed in the casing 11, and then the cap body 12 is fitted to the rod body 14, and The housing 11 is tightly closed and then integrated into a single ultrasonic wave. In use, a needle-free syringe (not shown) must be pushed against the cross indent 141 on the rod body 14, so that the needle-free syringe is in close contact with the cap body 12, and the rod body 14 will follow the trend. Pushing the elastic frame 13 to form a slit between the rod 14 and the casing 11. At this time, the medicine can be injected into the needle-free joint, and the medicine can pass along the cross indent 141 and the slit. The catheter flows into the patient.

Please refer to Figure 2, which is a side perspective view of the creation. As can be seen from the illustration, the housing 21 has a first external thread 211 for screwing and fixing to an external conduit. The cap body 22 has a second external thread 221 for screwing with an external needle-free syringe. The elastic frame 23 has a first blocking portion 231 and a second blocking portion 232 and is tightly fitted with the rod body 24.

Please refer to FIG. 3-5. The housing 31 of FIG. 3 has a second external thread 311 for screwing an outer tube, a first engaging portion 312 and a first hollow tube 313. The elastic frame 41 of FIG. 4 has a first blocking portion 411 , a second blocking portion 412 , a second engaging portion 413 and a third engaging portion 414 . The rod body 51 of FIG. 5 has a second hollow tube 511, an engaging ring 512, a retaining ring 513, a solid portion 514, a transverse through hole 515 and a cross indent 516. The first hollow tube 313 is coupled to the outer tube, and the second outer thread 311 is configured to screw the outer tube. The first engaging portion 312 is configured to engage the second engaging portion 413. The second hollow tube 511 is sleeved in the first hollow tube 313. The engaging ring 512 is sleeved on the third engaging portion 414 and abuts against the first blocking portion 411. The retaining ring 513 is abutted against the second gear portion 412.

Referring to FIG. 2 again, when a needle-free syringe (not shown) is used to push against the rod body 24, the rod body pushes the elastic frame body 23, causing the elastic frame body 23 to move backwards. A slit is formed between the rod body 24 and the casing 21, and at this time, pressure is applied to the needle-free injection cylinder so that the medicament follows the cross dimple 516 of FIG. 5, along which the transverse passage passes. a hole 515, the second hollow tube 511, and then flowing through the first hollow tube of FIG. 313. The outer catheter finally enters the patient. When the needle-free syringe leaves the solid portion 514, the rod and the housing return to a close state.

In summary, the design of the creation is easy, the cost is low, and the use is convenient, so that the medical practice personnel can provide considerable convenience and stable and reliable effects in the daily operation of adding the medicine, thereby eliminating the risk of the medical staff being pinned. Meet the needs of the industry. Moreover, the case can achieve the intended use and achieve better results. When it can meet the requirements of the new patent application, it will file a patent application according to law.

The detailed description above is a detailed description of one of the possible embodiments of the present invention, and the embodiment is not intended to limit the scope of the patents, and the equivalent implementations or modifications that are not included in the spirit of the present invention should be included in The patent scope of this case.

11‧‧‧Shell

12‧‧‧Cap

13‧‧‧Flexible frame

14‧‧‧ rod body

141‧‧ ‧cross dent

Claims (5)

A needle-free connector for connecting a catheter, the needle-free connector comprising: a housing having a first hollow tube and a first engaging portion, the first hollow tube coupled to the catheter; an elastic The frame body is received in the housing, the elastic frame body has a first blocking portion, a second gear portion, a second engaging portion and a third engaging portion, wherein the second engaging portion is used Engaging the first engaging portion; a rod body is received in the elastic frame body, the rod body has a second hollow tube, an engaging ring, a retaining ring and a solid portion, wherein the first portion The two hollow tubes are sleeved in the first hollow tube, and the engaging ring is sleeved on the third engaging portion and abuts against the first blocking portion, the blocking ring abuts against the second blocking portion And a cap coupled to the housing for receiving the solid portion, wherein when the needle-free syringe is used to push against the solid portion, the rod pushes the elastic frame to make the rod A slit is formed between the housing and the housing, and when the needle-free syringe is separated from the solid portion, the rod and the housing are brought into a close contact state. The needle-free joint of claim 1, wherein the housing further comprises a first external thread for fixing the catheter. The needle-free joint of claim 1, wherein the rod body further comprises a transverse through hole communicating with the second hollow tube. The needle-free joint of claim 1, wherein the solid portion has a cross-notch at one end of the mask. The needle-free joint of claim 1, wherein the cap further comprises a second external thread for fixing the needle-free syringe.