CN212730599U

CN212730599U - Picc catheter with function of preventing thrombus blockage

Info

Publication number: CN212730599U
Application number: CN202020461920.4U
Authority: CN
Inventors: 柴慧; 马德亮; 黄青青; 蔡凌云; 李睿明; 冯志仙
Original assignee: Huzhou University
Current assignee: Huzhou University
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-03-19
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a picc placing pipe with the function of preventing thrombus blockage, in particular to the field of medical instruments, which comprises an upper liquid inlet pipe, a middle connecting pipe, a lower liquid outlet pipe and a thrombus dredging device; the thrombus dredging device comprises a telescopic hollow hose section and an elastic part, one end of the elastic part is fixed with the upper end of the middle connecting pipe, the other end of the elastic part is fixed with the lower end of the upper liquid inlet pipe, and the elastic part is arranged in the hollow inner part of the hose section; one end of the hose section is fixed with the upper end of the middle connecting pipe, and the other end of the hose section is fixed with the side end of the upper liquid inlet pipe; the middle connecting pipe and the lower liquid outlet pipe are detachably arranged. The utility model has the advantages of preventing thrombus accumulation inside the picc placing tube from influencing the liquid medicine introduction.

Description

Picc catheter with function of preventing thrombus blockage

Technical Field

The utility model relates to the field of medical equipment, specifically a picc puts pipe with prevent thrombus and block up function.

Background

The PICC tube is punctured from the vein of the peripheral arm by using a catheter, and the catheter directly enters the vein near the heart to avoid direct contact of chemotherapy drugs and the arm vein. With the rapid increase of venous blood flow, the chemotherapy drug can be diluted rapidly, and the stimulation of the drug to veins is prevented.

The current PICC puts the pipe and puts the in-process that the pipe was used for a long time, puts the inside wall of pipe and can adhere to the thick thrombus of one deck. In order to dissolve thrombus, medical personnel generally carry out angiography or Doppler ultrasound examination on a patient, after diagnosis is confirmed, the medical personnel is in contact with vascular surgery, and the PICC tube is used for directly acting thrombolytic medicines on an embolus position, and simultaneously dissolving thrombus and extracting the tube. However, the above-mentioned thrombolytic procedures not only cause physiological and psychological pains of patients, but also may cause various complications. Therefore, it is an urgent technical problem to be solved by medical staff to provide a picc catheter capable of assisting in clearly positioning thrombus.

SUMMERY OF THE UTILITY MODEL

The utility model provides a picc puts pipe with prevent thrombus blockage function, this picc puts the pipe and has the advantage that can prevent that picc from putting inside thrombus accumulation in order to influence the liquid medicine and let in.

In order to achieve the above object, the utility model provides a following technical scheme:

a picc placing tube with the function of preventing thrombus blockage comprises an upper liquid inlet tube, a middle connecting tube, a lower liquid outlet tube and a thrombus dredging device; the thrombus dredging device comprises a telescopic hollow hose section and an elastic part, one end of the elastic part is fixed with the upper end of the middle connecting pipe, the other end of the elastic part is fixed with the lower end of the upper liquid inlet pipe, and the elastic part is arranged in the hollow inner part of the hose section; one end of the hose section is fixed with the upper end of the middle connecting pipe, and the other end of the hose section is fixed with the side end of the upper liquid inlet pipe; the middle connecting pipe and the lower liquid outlet pipe are detachably arranged.

Preferably, the picc placing tube further comprises a landfill device for pre-burying the thrombolytic drug, the landfill device comprises a fixing tube and a plurality of fixing rings arranged on the outer side wall of the fixing tube, a plurality of through holes for the thrombolytic drug to contact with thrombus are formed between every two adjacent fixing rings, a gap for burying the thrombolytic drug is reserved between every two adjacent fixing rings, and the fixing tube is rotatably arranged at the lower end of the middle connecting tube.

Preferably, the outer side end of the middle connecting pipe is provided with a first thread section, correspondingly, the inner side of the lower liquid outlet pipe is provided with an inner thread section which is fixed with the first thread section in a threaded manner, and the first thread section is positioned above the fixing ring.

Preferably, the inner side wall of the lower liquid outlet pipe is provided with a limiting convex rib, correspondingly, the outer side of the fixing ring is provided with a limiting groove which is communicated with the fixing ring and is matched with the limiting convex rib, and the limiting convex rib is positioned below the internal thread section.

Preferably, a sealing ring for preventing blood from seeping is arranged below the first thread section, correspondingly, an embedded groove matched with the sealing ring is formed in the inner side wall of the lower liquid outlet pipe, and the embedded groove is located below the inner thread section.

Preferably, one end of the lower liquid outlet pipe, which faces away from the middle connecting pipe, is provided with a puncture needle.

The utility model has the advantages that:

the utility model discloses in, should in time wash the pipeline when medical personnel finish the infusion after, simultaneously, can stimulate last inlet tube and well connecting pipe in the opposite direction to make the flexible to the longest end of hose section. Repeating the above operation can remove the micro thrombi attached to the inner wall of the flexible pipe section and the rest of the tube section to prevent further accumulation and blockage in the tube.

Drawings

FIG. 1 is a schematic structural diagram of a picc placement tube with an anti-thrombus blockage function according to the embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic cross-sectional structure view of a picc placement tube with an anti-thrombus blockage function provided by the embodiment.

In the figure: 1. lower drain pipe, 11, internal thread section, 12, spacing fin, 2, well connecting pipe, 21, solid fixed ring, 22, through-hole, 23, first screw thread section, 24, sealing washer, 25, hose section, 26, elastic component, 3, last liquid feed pipe, 4, pjncture needle.

Detailed Description

The embodiment provides a technical scheme:

as shown in figures 1-3, a picc placing tube with thrombus blockage prevention function comprises an upper liquid inlet tube 3, a middle connecting tube 2, a lower liquid outlet tube 1 and a thrombus dredging device; the thrombus dredging device comprises a telescopic and hollow hose section 25 and an elastic part 26, wherein one end of the elastic part 26 is fixed with the upper end of the middle connecting pipe 2, the other end of the elastic part 26 is fixed with the lower end of the upper liquid inlet pipe 3, and the elastic part 26 is arranged in the hollow part of the hose section 25; one end of the hose section 25 is fixed with the upper end of the middle connecting pipe 2, and the other end is fixed with the side end of the upper liquid inlet pipe 3; the middle connecting pipe 2 and the lower liquid outlet pipe 1 are detachably arranged.

As shown in fig. 2, the picc indwelling catheter comprises a landfill device for pre-burying thrombolytic agents, the landfill device comprises a fixed tube and a plurality of fixing rings 21 arranged on the outer side wall of the fixed tube, a plurality of through holes 22 for contacting the thrombolytic agents and thrombus are arranged between every two adjacent fixing rings 21, a gap for burying the thrombolytic agents is reserved between every two adjacent fixing rings 21, and the fixed tube is rotatably arranged at the lower end of the middle connecting tube 2. The medical staff can fill the thrombolytic drug between two adjacent fixing rings 21 in advance, and when the thrombus is attached to the inner wall of the indwelling tube, the thrombolytic drug can enter the indwelling tube through the through hole 22, so that the thrombus is dissolved.

As shown in fig. 3, the outer side end of the middle connecting pipe 2 is provided with a first thread section 23, correspondingly, the inner side of the lower liquid outlet pipe 1 is provided with an internal thread section 11 screwed and fixed with the first thread section 23, and the first thread section 23 is located above the fixing ring 21. Can dismantle well connecting pipe 2 and lower drain pipe 1 that sets up can make things convenient for medical personnel to accomodate and assemble more, also made things convenient for medical personnel before putting the pipe, landfill haemolysis medicine on well connecting pipe 2.

In order to realize the positioning of the fixed pipe and prevent the thrombolytic drug from falling off when the fixed pipe rotates, the inner side wall of the lower liquid outlet pipe 1 is provided with a limiting convex rib 12, correspondingly, the outer side of the fixed ring 21 is provided with a limiting groove which is through and is matched with the limiting convex rib 12, and the limiting convex rib 12 is positioned below the internal thread section 11.

In order to prevent blood seepage during long-term tube placement, a sealing ring 24 for preventing blood seepage is arranged below the first thread section 23, and correspondingly, an embedded groove matched with the embedded part of the sealing ring 24 is formed in the inner side wall of the lower liquid outlet tube 1 and is positioned below the inner thread section 11.

In the present embodiment, the end of the lower liquid outlet pipe 1 facing away from the middle connecting pipe 2 is provided with a puncture needle 4.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A picc placing tube with the function of preventing thrombus blockage is characterized by comprising an upper liquid inlet tube (3), a middle connecting tube (2), a lower liquid outlet tube (1) and a thrombus dredging device;

the thrombus dredging device comprises a telescopic and hollow hose section (25) and an elastic part (26), one end of the elastic part (26) is fixed with the upper end of the middle connecting pipe (2), the other end of the elastic part is fixed with the lower end of the upper liquid inlet pipe (3), and the elastic part (26) is arranged in the hollow part of the hose section (25);

one end of the hose section (25) is fixed with the upper end of the middle connecting pipe (2), and the other end of the hose section is fixed with the side end of the upper liquid inlet pipe (3);

the middle connecting pipe (2) and the lower liquid outlet pipe (1) are detachably arranged.

2. The picc catheter with the function of preventing thrombus blockage according to claim 1, further comprising a landfill device for pre-burying thrombolytic medicaments, wherein the landfill device comprises a fixed tube and a plurality of fixing rings (21) arranged on the outer side wall of the fixed tube, a plurality of through holes (22) for contacting the thrombolytic medicaments and thrombus are arranged between every two adjacent fixing rings (21), a gap for burying the thrombolytic medicaments is reserved between every two adjacent fixing rings (21), and the fixed tube is rotatably arranged at the lower end of the middle connecting tube (2).

3. The picc catheter with the function of preventing thrombus blockage according to claim 1, characterized in that the outer side end of the middle connecting pipe (2) is provided with a first threaded section (23), correspondingly, the inner side of the lower liquid outlet pipe (1) is provided with an inner threaded section (11) which is fixed with the first threaded section (23) in a threaded manner, and the first threaded section (23) is positioned above the fixing ring (21).

4. The picc tube with the function of preventing thrombus blockage according to claim 3, wherein the inner side wall of the lower liquid outlet pipe (1) is provided with a limiting rib (12), correspondingly, the outer side of the fixing ring (21) is provided with a through limiting groove matched with the limiting rib (12), and the limiting rib (12) is positioned below the internal thread section (11).

5. The picc catheter with the function of preventing thrombus blockage according to claim 3, characterized in that a sealing ring (24) for preventing blood seepage is arranged below the first thread section (23), and correspondingly, the inner side wall of the lower liquid outlet pipe (1) is provided with an embedded groove which is matched with the sealing ring (24) to be embedded in, and the embedded groove is positioned below the internal thread section (11).

6. The picc catheter with the function of preventing thrombus blockage according to claim 1, characterized in that one end of the lower liquid outlet pipe (1) opposite to the middle connecting pipe (2) is provided with a puncture needle (4).