CN108295354A - A kind of suction type orthopedic drainage tube - Google Patents

Abstract

The invention discloses a kind of suction type orthopedic drainage tubes, including et al. Ke drainage tube and Ligation in vitro pipe；Et al. Ke drainage tube is integral structure, it is fixedly installed in-vivo metal silk ingress pipe outside et al. Ke drainage tube, main drainage tube and two flush pipes are provided in et al. Ke drainage tube, conduction hole is offered on et al. Ke drainage tube, conduction hole is connected to main drainage tube, connecting tube includes external drainage pipe, two external flush pipes and external wire ingress pipe, one end of external drainage pipe is connected to main drainage tube, the other end of external drainage pipe is connected to by connecting conduit with catch box, and catch box is connect by depressurizing appendix with vacuum pump.Compared with prior art, the beneficial effects of the invention are as follows can be deep into affected part deeply to be drained；It is external can to ensure that the waste liquid in affected part smoothly flows out；Blockage problem of the tissue in affected part to conduction hole can effectively be avoided；It can effectively avoid the problem that secondary pollution simultaneously.

Description

A negative pressure orthopedic drainage tube

technical field

The invention belongs to the technical field of medical devices, in particular to a negative pressure orthopedic drainage tube.

Background technique

In clinical medicine, various types of infected open fractures, osteomyelitis, septic arthritis, acute synovitis of the knee joint, and other surgical deep abscesses, empyema, and peritonitis must be treated with medicinal liquid lavage. Especially after the operation, it is necessary to drain and flush the soft tissue cavity or the joint cavity, and suck out the waste fluid.

At present, doctors usually place two tubes in the patient's affected area, one of which is used as a drug inlet tube for injecting liquid medicine for flushing, and the other is used as a drainage tube for drainage and flushing of thick blood. The end of the tube is connected to an air bag through a bypass tube, and by pressing the air bag, a negative pressure is formed in the drainage tube to suck out the waste liquid. However, often after repeated pressing, the waste liquid will remain in the air bag, and squeezing again may cause the backflow of the waste liquid, thereby contaminating the wound.

Most of the medicine feeding tubes and drainage tubes used clinically are soft tubes, which are easy to be blocked by foreign objects in the tubes during use, especially the drainage tubes, which are also difficult to penetrate deep into the affected area for drainage. Moreover, the negative pressure in the tube is only obtained by pressing the air bag. On the one hand, it is difficult to control the pressure. When the negative pressure in the tube is too large, it is easy to cause the inner wall of the tube to stick, so it is very troublesome to use. On the other hand, the pressure generated is discontinuous and cannot meet the requirements. actual clinical needs.

Contents of the invention

The object of the present invention is to provide a negative-pressure orthopedic drainage tube for the above-mentioned problems existing in the existing drainage tube. This drainage tube can avoid the problem of inner wall bonding caused by pressure, and can effectively avoid The blockage of foreign matter can penetrate deep into the wound for drainage, and at the same time, it can effectively avoid the problem of secondary pollution.

In order to achieve the above purpose, the technical solution adopted in this application is: a negative pressure orthopedic drainage tube, including a drainage tube implanted in the body and a connecting tube outside the body;

The implanted drainage tube in the body is an integral structure, and a metal wire introduction tube in the body is fixed outside the drainage tube and along the axial direction of the implanted drainage tube in the body. A main drainage tube and two irrigation tubes are arranged parallel to the axial direction of the implantation drainage tube. The main drainage tube is arranged at the central axis of the implantation drainage tube in the body. The inlet and drainage tube is provided with a plurality of drainage holes, and the plurality of drainage holes are all connected with the main drainage tube;

The extracorporeal connecting tube includes mutually independent extracorporeal drainage tubes, two extracorporeal flushing tubes and extracorporeal wire introduction tubes, one end of the extracorporeal drainage tube communicates with the main drainage tube at the tail end of the implanted drainage tube in the body, and the extracorporeal drainage tube The other end of the connecting pipe is connected with the liquid collection tank, and the liquid collection tank is connected with the vacuum pump through the decompression gas delivery pipe. A third valve is provided, the connecting conduit is detachably connected to the extracorporeal drainage tube through a connecting sleeve, and the connecting conduit is provided with a first valve, the decompression air delivery tube is provided with a second valve, and the extracorporeal flushing The tube is in communication with the flushing tube at the end of the drainage tube implanted in the body, and the metal wire introduction tube in the body is connected with the wire introduction tube in the body at the end of the drainage tube implanted in the body. Metal wires that can move freely are arranged in the body.

Further, the section of the drainage tube implanted in the body is oval.

Further, the inner diameter R of the main drainage tube is greater than or equal to 2r, where r is the inner diameter of the flushing tube.

Further, a plurality of drainage holes are opened along the length direction of the drainage tube implanted in the body, and the plurality of drainage holes are arranged in a spiral.

Further, there are multiple wire introduction tubes in the body, and the multiple wire introduction tubes in the body are evenly distributed outside the implanted drainage tube in the body.

Further, the number of the extracorporeal wire introduction tubes is equal to the number of the inner body wire introduction tubes.

Further, the connecting sleeve is a latex tube.

Compared with prior art, the beneficial effect of the present invention is:

(1) By rotating the second valve, the overlapping area between the vent hole of the second valve and the inner cavity of the decompression air pipe changes, which can change the speed of pressure change in the liquid collection tank and avoid the The sudden drop in pressure causes the blockage of the drainage holes and drainage ports by the tissue in the affected area. The vacuum detection meter detects the vacuum degree in the liquid collection tank in real time. The air inlet of the liquid collection tank is used to restore the pressure of the liquid collection tank. By adjusting the third valve, the pressure in the liquid collection tank can be changed to ensure the vacuum in the liquid collection tank. The pressure is stable, and the pressure in the liquid collection tank can not only lead the waste liquid from the patient's affected part out of the body smoothly, but also effectively avoid the problem of normal tissues or organs in the affected part blocking the drainage hole due to excessive negative pressure.

(2) When negative pressure drainage is not needed, the user first closes the first valve and opens the third valve. At this time, the pressure in the liquid collection tank returns to normal pressure, because the waste liquid in the liquid collection tank is connected to the The catheter does not touch, and because the first valve is closed, it further prevents the waste liquid from flowing back into the affected area along the external drainage tube and causing secondary pollution.

(3) Compared with the traditional drainage tube, the structure of the implanted drainage tube in the body and the metal wire introduction tube in the body is more rigid. Because the traditional drainage tube is relatively soft, it is easy to knot when it goes deep into the affected area. The negative pressure drainage tube of the present invention has an integral structure because the drainage tube itself is implanted in the body, and the cross section is oval. Implanting the drainage tube in the body and then fixing the metal wire introduction tube in the body can effectively increase the hardness of the drainage tube that penetrates into the body, and can ensure that the drainage tube does not knot when it goes deep into the affected area for drainage, and can be smoothly drained. Drain the waste fluid out of the body.

(4) Metal wires are arranged in the internal wire introduction tube and the external wire introduction tube. The existence of the metal wire has a positioning function, and the position of the drainage tube implanted in the body can be positioned through the placed metal wire.

Description of drawings

Fig. 1 is a structural representation of a negative pressure orthopedic drainage tube of the present invention;

Fig. 2 is a sectional view of a negative-pressure orthopedic drainage tube implanted in the body of the present invention;

In the figure: 1. Drainage tube implanted in the body; 2. Connecting tube in vitro; 3. Main drainage tube; 4. Irrigation tube; 5. Drainage hole; 6. Metal wire introduction tube in the body; 7. External drainage tube; Flushing pipe; 9. Extracorporeal metal wire introduction pipe; 10. Connecting catheter; 11. Connecting sleeve; 12. Liquid collection tank; 13. Decompression air pipe; 14. Vacuum pump; 15. First valve; 17. The second valve; 18. The third valve.

Detailed ways

In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

As shown in Fig. 1-Fig. 2, the specific embodiment of the present invention is realized by adopting the following technical scheme, a negative pressure orthopedic drainage tube, including a drainage tube 1 implanted in the body and a connecting tube 2 outside the body. The drainage tube 1 implanted in the body is directly inserted into the patient's affected part. And because the drainage tube 1 implanted in the body is an integral structure, it is harder than the traditional drainage tube that goes deep into the affected area, and can effectively avoid the problem of knotting of the drainage tube in the body when it goes deep into the affected area. The cross-section of the drainage tube 1 implanted in the body is elliptical. This cross-sectional shape fully considers the shape of the wound in the affected area, especially the shape of the incision after the operation. Too big, and stretching the wound too much. Outside the implanted drainage tube 1 in the body and along the axial direction of the implanted drainage tube 1, there is a metal wire introduction tube 6 in the body. Implant the drainage tube 1 outside. The internal wire introduction tube 6 can further increase the strength of the implanted drainage tube 1 in the body. At the same time, a plurality of internal wire introduction tubes 6 are arranged around the internal implanted drainage tube 1. When the internal implanted drainage tube 1 goes deep into the affected area When it is inside, the metal wire guide tube 6 in the body will prop up the implanted drainage tube 1 in the body, so that there is a certain distance between the implanted drainage tube 1 in the body and the affected tissue, so that the impact of the affected tissue on the drainage hole 5 can also be effectively slowed down. clogging problem. The drainage tube 1 is implanted in the body and the main drainage tube 3 and two irrigation tubes 4 are arranged in parallel along the axial direction. Tube 4 , the inner diameter R of the main drainage tube 3 is greater than or equal to 2r, where r is the inner diameter of the flushing tube 4 . The main drainage tube 3 is used to lead the waste liquid from the affected area out of the body, and the two flushing tubes 4 are used to apply the medicinal liquid outside the body to the affected area to flush the inside of the affected area. Since there are two flushing tubes 4 , the inner diameter R of the main drainage tube 3 is greater than or equal to 2r, where r is the inner diameter of the flushing tube 4 . This can ensure that the waste liquid is drawn out of the body as soon as possible. The drainage tube 1 implanted in the body is provided with a plurality of drainage holes 5, and the plurality of drainage holes 5 are all communicated with the main drainage tube 3, and the plurality of drainage holes 5 are opened along the length direction of the drainage tube 1 implanted in the body, and the plurality of drainage holes 5 helical arrangements.

The extracorporeal connecting tube 2 includes an independent extracorporeal drainage tube 7, two extracorporeal flushing tubes 8 and an extracorporeal wire introduction tube 9. One end of the extracorporeal drainage tube 7 communicates with the main drainage tube 3 implanted in the tail end of the drainage tube 1 in the body. The other end of the pipe 7 communicates with the liquid collection tank 12 through the connecting conduit 10, and the liquid collection tank 12 is connected with the vacuum pump 14 through the decompression gas delivery pipe 13. Three valves18. The liquid collecting tank 12 is used to collect waste liquid, the vacuum detection meter 16 is used to detect the pressure of the liquid collecting tank 12 in real time, and the air inlet is used for air intake. By adjusting the third valve 18, it can be controlled whether to enter the liquid collecting tank 12. The gas is used to ensure that the negative pressure in the liquid collection tank 12 can satisfy the drainage of waste liquid out of the body, and can prevent the tissue in the affected area from blocking the drainage hole 5 and the drainage port. When it is not necessary to carry out negative pressure drainage, the user at first closes the first valve 15 and opens the third valve 18. At this time, the pressure in the liquid collection tank 12 returns to normal pressure, because the waste liquid in the liquid collection tank 12 and The connecting conduit 10 is not in contact, and because the first valve 15 is closed, it further prevents the waste liquid from flowing back into the affected area along the external drainage tube 7 and causing secondary pollution. Connecting conduit 10 and external drainage tube 7 are detachably connected through connecting sleeve 11, because the drainage tube is a disposable product, but the liquid collection tank 12 and vacuum pump 14 can be used repeatedly. After using the drainage tube, connect the external drainage tube 7 and the connecting conduit 10 is disassembled, and the implanted drainage tube 1 and the external connection tube 2 are thrown away, and after the connecting conduit 10, the liquid collection tank 12 decompression air delivery tube 13 are sterilized, they can continue to be used. The connecting conduit 10 is provided with a first valve 15, and the connecting sleeve 11 is a latex tube. A second valve 17 is arranged on the decompression air delivery tube 13, the extracorporeal flushing tube 8 is connected to the flushing tube 4 at the tail end of the implanted drainage tube 1 in the body, and the extracorporeal wire introduction tube 9 is introduced into the body wire at the tail end of the implanted drainage tube 1 The tube 6 is connected, and the body of the extracorporeal wire introduction tube 9 and the inner body wire introduction tube 6 is provided with freely movable metal wires. Metal wires are arranged in the internal wire introduction tube 6 and the external wire introduction tube 9 , and the existence of the metal wires has a positioning function, and the position of the drainage tube implanted in the body can be positioned through the placed metal wires.

The specific use process is as follows:

Firstly, the user inserts a wire from the extracorporeal wire introduction tube 9 and extends the metal wire into the internal wire introduction tube 6 to ensure that the wire does not pass through the internal wire introduction tube 6, and implants the drainage tube 1 deep into the body. Into the affected part; then from the in vitro flushing pipe 8 to inject medicinal liquid in the flushing pipe 4, for cleaning the affected part, all open the first valve 15, open the second valve 17, here will partially open the second valve 17, the purpose is to To prevent the sudden drop in pressure in the liquid collection tank 12 from causing the tissue in the affected part to block the drainage hole 5 and the drainage port, start the vacuum pump 14, and the vacuum pump 14 starts to work, and slowly decompress the liquid collection tank 12, and the vacuum detection meter 16 detects the liquid collection tank in real time 12 pressure, when the waste liquid flows out stably in the external drainage tube 7, the user records the pressure value shown by the vacuum test gauge 16, and finally the user closes the second valve 17, turns off the vacuum pump 14, and keeps the pressure in the liquid collection tank 12. Negative pressure environment, then the waste liquid can continue to flow to the liquid collection tank 12.

After a period of decompression, only a small amount of liquid still flows out of the external drainage tube 7, indicating that the pressure in the liquid collection tank 12 is too high, causing the drainage hole 5 and the drainage port to be blocked by tissues in the affected area. To open the third valve 18, reduce the pressure difference inside and outside the liquid collection tank 12, and observe the outflow of waste liquid in the external drainage tube 7, when the waste liquid in the external drainage tube 7 flows out stably, the user closes the second valve 17 , and close the third valve 18 at the same time to stabilize the pressure in the liquid collecting tank 12 .

When drainage is not needed, the user opens the third valve 18 and closes the first valve 15 at the same time. At this time, the pressure in the liquid collection tank 12 returns to normal pressure, because the waste liquid in the liquid collection tank 12 does not contact the connecting conduit 10, And because the first valve 15 is closed, the waste liquid is further prevented from flowing back into the affected area along the external drainage tube 7 to cause secondary pollution.

In summary, the beneficial effect of the present invention is that it can go deep into the affected area for drainage; it can ensure that the waste liquid in the affected area flows out of the body smoothly; it can effectively avoid the problem of the tissue in the affected area blocking the drainage holes; The problem of secondary pollution.

The above disclosures are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present invention.

Claims (7)

1. A negative pressure type orthopedic drainage tube is characterized in that it comprises an implanted drainage tube (1) and an external connection tube (2) in the body; The implanted drainage tube (1) in the body is an integral structure, and an internal wire introduction tube (6) is fixed outside the implanted drainage tube (1) and along the axial direction of the implanted drainage tube (1) in the body. , the implanted drainage tube (1) in the body is provided with a main drainage tube (3) and two flushing tubes (4) parallel to the axial direction of the implanted drainage tube (1) in the body, the main drainage tube (3) ) is arranged at the central axis of the implanted drainage tube (1) in the body, the main drainage tube (3) is fixed with a flushing tube (4), and the implanted drainage tube (1) in the body is provided with a plurality of drainage tubes hole (5), a plurality of said drainage holes (5) are all communicated with the main drainage tube (3); The extracorporeal connecting tube (2) includes mutually independent extracorporeal drainage tubes (7), two extracorporeal flushing tubes (8) and extracorporeal metal wire introduction tubes (9). The main drainage tube (3) at the tail end of the inlet and drainage tube (1) communicates, and the other end of the external drainage tube (7) communicates with the liquid collection tank (12) through the connecting conduit (10), and the liquid collection tank (12) Connect with the vacuum pump (14) through the decompression air pipe (13), the liquid collection tank (12) is provided with a vacuum detection meter (16) and is provided with an air inlet, and the third valve is arranged on the air inlet (18), the connection conduit (10) is detachably connected to the external drainage tube (7) through a connection sleeve (11), and the connection conduit (10) is provided with a first valve (15), the decompression The air delivery tube (13) is provided with a second valve (17), the extracorporeal flushing tube (8) communicates with the flushing tube (4) at the tail end of the drainage tube (1) implanted in the body, and the extracorporeal metal wire introduction tube (9) ) communicates with the internal wire introduction tube (6) at the tail end of the implanted drainage tube (1) in the body, and the in vitro wire introduction tube (9) and the internal wire introduction tube (6) are provided with a freely movable metallic line. 2. A negative-pressure orthopedic drainage tube as claimed in claim 1, characterized in that the cross-section of the implanted drainage tube (1) in the body is oval. 3. A negative pressure orthopedic drainage tube according to claim 1, characterized in that the inner diameter of the main drainage tube (3) is R≥2r, wherein r is the inner diameter of the irrigation tube (4). 4. A kind of negative pressure orthopedic drainage tube as claimed in claim 1, characterized in that, a plurality of said drainage holes (5) are opened along the length direction of the implanted drainage tube (1) in the body, and the plurality of said drainage holes The drainage holes (5) are helically arranged. 5. a kind of negative pressure type orthopedics drainage tube as claimed in claim 1, is characterized in that, described internal wire lead-in tube (6) is a plurality of, and a plurality of described internal wire lead-in tubes (6) are uniform Distributed outside the implanted drainage tube (1) in the body. 6. A negative-pressure orthopedic drainage tube as claimed in claim 5, characterized in that the number of said extracorporeal wire introduction tubes (9) is equal to the number of in vivo wire introduction tubes (6). 7. A negative-pressure orthopedic drainage tube as claimed in claim 1, characterized in that the connecting sleeve (11) is a latex tube.