CN211751378U

CN211751378U - Double-terylene-sleeve central vein indwelling catheter

Info

Publication number: CN211751378U
Application number: CN201921928580.5U
Authority: CN
Inventors: 肖厚勤; 刘越存; 张文娟; 张孟贤; 华洁
Original assignee: Dongguan Fifth People's Hospital
Current assignee: Dongguan Fifth People's Hospital
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-10-27
Anticipated expiration: 2029-11-08

Abstract

The utility model provides a two dacron cover central vein indwelling catheters, including main duct, connecting piece, first branch pipe, first dacron cover and second dacron cover, the connecting piece be equipped with the main entrance and with the first branch passageway of main entrance intercommunication, main duct's one end is pegged graft in the main entrance and with the main entrance intercommunication, the one end of first branch pipe is pegged graft in first branch passageway and with first branch passageway intercommunication, first dacron cover sets up on main duct with second dacron cover is the interval. When taking place not hard up between first dacron cover and second dacron cover one of them and the subcutaneous tissue, another in first dacron cover and second dacron cover both can also guarantee to keep somewhere the pipe with two dacron cover central vein and fix at the subcutaneous tissue to can avoid taking place the obscission and provide dual protection for preventing the bacterium invasion, consequently, two dacron cover central vein keep somewhere the pipe and have fixed firm advantage of being difficult for the infection.

Description

Double-terylene-sleeve central vein indwelling catheter

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a two dacron cover central vein indwelling catheters.

Background

Currently, central venous indwelling catheters have become an important method for establishing vascular access in clinic, and are the vital line for maintaining hemodialysis in patients who need long-term hemodialysis treatment for various reasons or cannot establish internal fistula. The existing semi-permanent central venous indwelling catheter is generally provided with only one terylene sleeve, and because a subcutaneous tunnel is established under the skin, the terylene sleeve can be adhered with subcutaneous tissues to seal a gap from a skin inlet to a central vein and fix the catheter on the subcutaneous tissues. During clinical use, the following are found: the central vein indwelling catheter which is only provided with the dacron sleeve is often not fixed firmly, the dacron sleeve and subcutaneous tissues are easy to loosen and fall off, meanwhile, the dacron sleeve is only provided with one bacteria protection barrier, and a tunnel cavity is also easy to infect to cause the central vein indwelling catheter to have to be indwelling again, so that the service time of the central vein indwelling catheter is greatly reduced and the infection prevention capability is weakened.

Therefore, a central venous indwelling catheter with double dacron sleeves, which has high fixation firmness and strong infection prevention capability, is extremely needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two dacron cover central vein indwelling catheters that fixed fastness is high and prevent that infection ability is strong.

In order to achieve the above object, the utility model provides a two dacron cover central vein indwelling catheters, including main duct, connecting piece, first branch pipe, first dacron cover and second dacron cover, the connecting piece be equipped with the main entrance and with the first branch passageway of main entrance intercommunication, the one end of main duct peg graft in the main entrance and with the main entrance intercommunication, the one end of first branch pipe peg graft in first branch passageway and with first branch passageway intercommunication, first dacron cover with second dacron cover be interval set up in on the main duct.

Preferably, the liquid stopping device further comprises a first liquid stopping clamp, and the first liquid stopping clamp is arranged on the first branch conduit.

Preferably, the connector further comprises a second branch conduit, the connector is provided with a second branch channel, the second branch channel is communicated with the main channel, and the second branch conduit is inserted into the second branch channel and is communicated with the second branch channel.

Preferably, the liquid stopping clamp is arranged on the second branch conduit.

Preferably, the first terylene cover is in an annular structure, and the first terylene cover is wound on the main catheter.

Preferably, the second polyester sleeve is of an annular structure, and the second polyester sleeve is wound on the main catheter.

Preferably, the other end of the main catheter is provided with a catheter sharp hole, a first cavity and a second cavity which are spaced apart from each other are arranged inside the main catheter, a first side hole and a second side hole which are spaced apart from each other are arranged on the side wall of the main catheter, the first cavity is communicated with the catheter sharp hole and the first side hole, and the second cavity is communicated with the second side hole.

Preferably, the main channel includes a first main channel and a second main channel, the first main channel is communicated between the first branch channel and the main duct, and the second main channel is communicated between the second branch channel and the main duct.

Compared with the prior art, because the utility model discloses a two dacron cover central vein indwelling catheters are provided with first dacron cover and second dacron cover on main duct with the interval, through first dacron cover and second dacron cover respectively with two dacron cover central vein indwelling catheters fix in subcutaneous tissue, when taking place to become flexible between subcutaneous tissue and one of first dacron cover and second dacron cover, the other one of first dacron cover and second dacron cover also can guarantee to fix two dacron cover central vein indwelling catheters in subcutaneous tissue, thereby can avoid taking place the obscission and provide dual protection for preventing the invasion of bacteria, consequently, two dacron cover central vein indwelling catheters fixed fastness is high; in addition, two dacron covers are equivalent to have two bacterium protective barriers, have strengthened the infection-preventing ability, avoid the central vein to keep somewhere the condition that the pipe often keeps somewhere again.

Drawings

Fig. 1 is a schematic structural view of the double-dacron sleeve central venous indwelling catheter of the present invention.

Figure 2 is a cross-sectional view of the connector of the first embodiment of the double dacron sleeve central venous indwelling catheter of the present invention.

Fig. 3 is a sectional view of the main catheter of the double dacron sleeve central venous indwelling catheter of the present invention.

Figure 4 is a cross-sectional view of a connector of a second embodiment of a double dacron cuff central venous indwelling catheter of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 and 2, the double-dacron-sheath central venous indwelling catheter 100 of the present invention includes a main catheter 1, a connector 2, a first branch catheter 3, a first dacron sheath 4 and a second dacron sheath 5. A main channel 21 and a first branch channel 22 communicated with the main channel 21 are arranged in the connecting piece 2, specifically, one end of the main channel 21 forms a main socket 211 on the side wall of the connecting piece 2, one end of the first branch channel 22 forms a first branch socket 221 on the side wall of the connecting piece 2, and the other end of the main channel 21 is communicated with the other end of the first branch channel 22 in the connecting piece 2; one end of the main conduit 1 is inserted into the main channel 21 and communicated with the main channel 21, and specifically, one end of the main conduit 1 is inserted into the main socket 211; the first branch conduit 3 is inserted into the first branch channel 22 and communicated with the first branch channel 22, specifically, the first branch conduit 3 is inserted into the first branch socket 221; the first polyester sleeve 4 and the second polyester sleeve 5 are arranged on the main catheter 1 at intervals. Keep somewhere pipe 100 through first dacron cover 4 and second dacron cover 5 with two dacron cover central vein respectively and fix in subcutaneous tissue to improve two dacron cover central vein and keep somewhere fixed fastness of pipe 100, avoid taking place to keep somewhere the phenomenon that the pipe drops. Further, the utility model discloses a two dacron cover central vein indwelling catheters 100 still includes that first end liquid presss from both sides 6, and first end liquid presss from both sides 6 and sets up in first branch pipe 3, can end liquid control to first branch pipe 3 through this first end liquid presss from both sides 6.

With reference to fig. 1 and fig. 2, the double-dacron sheath central venous indwelling catheter 100 of the present invention further includes a second branch catheter 7, the connecting member 2 is provided with a second branch channel 23, the second branch channel 23 is communicated with the main channel 21, the second branch channel 23 is spaced from the first branch channel 22, specifically, one end of the second branch channel 23 forms a second branch socket 231 on the side wall of the connecting member 2, and the other end of the second branch channel 23 is communicated with the main channel 21 inside the connecting member 2; the second branch conduit 7 is plugged into the second branch channel 23 and communicates with the second branch channel 23, and specifically, the second branch conduit 7 is plugged into the second branch socket 231. Further, the utility model discloses a two dacron cover central vein keep somewhere pipe 100 still includes that the second ends liquid and presss from both sides 8, and the second ends liquid and presss from both sides 8 and set up in second branch pipe 7, ends liquid through this second and presss from both sides 8 and ends liquid control to second branch pipe 7.

Referring to fig. 1, in the present embodiment, the first polyester sleeve 4 is in a ring structure, and the first polyester sleeve 4 is wound around the main catheter 1. The second terylene cover 5 is in an annular structure, and the second terylene cover 5 is wound on the main catheter 1. However, the structures of the first polyester sleeve 4 and the second polyester sleeve 5 are not limited thereto, for example, the first polyester sleeve 4 and the second polyester sleeve 5 may have a semi-arc structure.

Referring to fig. 1 and 3, in the present embodiment, a catheter tip hole 13 is disposed at the other end of the main catheter 1, a first cavity 11 and a second cavity 12 spaced apart from each other are disposed inside the main catheter 1, a first side hole 14 and a second side hole 15 spaced apart from each other are disposed on a side wall of the main catheter 1, the first cavity 11 is communicated with the catheter tip hole 13 and the first side hole 14, and the second cavity 12 is communicated with the second side hole 15. However, the structure of the main catheter 1 is not limited thereto, and for example, a single lumen catheter may be used as the main catheter 1.

Referring to fig. 1 and 4, in the second embodiment of the double-dacron sheath central venous indwelling catheter 100 of the present invention, the main channel 21 includes a first main channel 212 and a second main channel 213, the first main channel 212 is communicated between the first branch channel 22 and the main catheter 1, the second main channel 213 is communicated between the second branch channel 23 and the main catheter 1, and the structures of the rest components are kept unchanged. Specifically, the first cavity 11 of the main duct 1 communicates with the first main channel 212, and the second cavity 12 of the main duct 1 communicates with the second main channel 213. However, it is not limited thereto, for example, the main duct 1 may be provided with only one cavity communicating with the first main channel 212 and the second main channel 213, respectively.

In summary, because the utility model discloses a two dacron cover central vein indwelling catheter 100 is provided with first dacron cover 4 and second dacron cover 5 on main catheter 1 at the interval, fix two dacron cover central vein indwelling catheter 100 in subcutaneous tissue respectively through first dacron cover 4 and second dacron cover 5, when taking place to become flexible between the subcutaneous tissue and one of first dacron cover 4 and second dacron cover 5, the other of first dacron cover 4 and second dacron cover 5 also can guarantee to fix two dacron cover central vein indwelling catheter 100 in subcutaneous tissue to can avoid taking place the obscission and provide dual protection for preventing the bacterium invasion, consequently, two dacron cover central vein indwelling catheter 100 fixes the fastness height; in addition, two dacron covers are equivalent to have two bacterium protective barriers, have strengthened the infection-preventing ability, avoid the central vein to keep somewhere the condition that the pipe often keeps somewhere again.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. The utility model provides a two dacron cover central vein indwelling catheters, its characterized in that, includes main duct, connecting piece, first branch pipe, first dacron cover and second dacron cover, the connecting piece be equipped with the main entrance and with the first branch passageway of main entrance intercommunication, the one end of main duct peg graft in the main entrance and with the main entrance intercommunication, the one end of first branch pipe peg graft in first branch passageway and with first branch passageway intercommunication, first dacron cover with second dacron cover be interval set up in on the main duct.

2. The double polyester sleeve central vein indwelling catheter of claim 1, further comprising a first fluid stop clip, the first fluid stop clip being disposed on the first branch catheter.

3. The double polyester sleeve central vein indwelling catheter of claim 1, further comprising a second branch catheter, wherein the connector is provided with a second branch channel, the second branch channel is communicated with the main channel, and the second branch catheter is inserted into the second branch channel and is communicated with the second branch channel.

4. The double polyester sleeve central vein indwelling catheter of claim 3, further comprising a second fluid stop clip, the second fluid stop clip being disposed on the second branch catheter.

5. The double polyester sleeve central vein indwelling catheter of claim 1, wherein the first polyester sleeve is in a ring structure, and the first polyester sleeve is wound around the main catheter.

6. The double polyester sleeve central vein indwelling catheter of claim 1, wherein the second polyester sleeve is in a ring structure, and the second polyester sleeve is wound around the main catheter.

7. The double polyester sleeve central vein indwelling catheter of claim 3, wherein a catheter tip hole is formed at the other end of the main catheter, a first cavity and a second cavity which are spaced apart from each other are formed inside the main catheter, a first side hole and a second side hole which are spaced apart from each other are formed in the side wall of the main catheter, the first cavity is communicated with the catheter tip hole and the first side hole, and the second cavity is communicated with the second side hole.

8. The dual polyester sleeve central venous indwelling catheter of claim 3, wherein the main channel comprises a first main channel and a second main channel, the first main channel communicating between the first branch channel and the main catheter, the second main channel communicating between the second branch channel and the main catheter.