CN210932977U

CN210932977U - Subcutaneous continuous negative pressure drainage device

Info

Publication number: CN210932977U
Application number: CN201921230672.6U
Authority: CN
Inventors: 黄仕芸; 杨小燕; 佘莉君
Original assignee: No 2 Affiliated Hospital of Guiyang College of Traditional Chinese Medicine
Current assignee: No 2 Affiliated Hospital of Guiyang College of Traditional Chinese Medicine
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-07-07
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a subcutaneous continuous negative pressure drainage device, belonging to the technical field of medical appliances, which comprises a drainage tube; a negative pressure cavity is arranged at the outlet end of the drainage tube; an internal thread is arranged on one side of the interior of the cavity of the negative pressure cavity far away from the drainage tube; the negative pressure piston shaft is arranged in the cavity of the negative pressure cavity; the negative pressure piston shaft comprises a rubber end, and one side of the rubber end is fixed on the threaded telescopic rod; the threaded telescopic rod is matched with the internal thread of the negative pressure cavity, so that the negative pressure piston shaft is movably arranged in the negative pressure cavity, and the other end of the threaded telescopic rod is detachably connected with the servo motor through a coupler; the servo motor is connected with the controller through a lead; one outer end face of the negative pressure cavity is arc-shaped, and a fixed cushion is further mounted on the outer end face of the arc-shaped cavity; the fixing soft cushion is also provided with a binding band; the utility model effectively reduces the working intensity of the interval operation of the medical staff and is convenient for the patient to get off the bed for rehabilitation; the anti-backflow device is convenient to disassemble and assemble, reliable in structure and capable of effectively preventing backflow.

Description

Subcutaneous continuous negative pressure drainage device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to subcutaneous continuous negative pressure drainage device.

Background

In surgery, to the patient that subcutaneous layer hydrops appears easily, fat liquefaction and incision infection, often need use negative pressure drainage device to carry out the drainage to hydrops etc. the drainage device in the hospital at present is implemented with the help of empty needle mostly, but because the produced negative pressure of using empty needle can not be continuous, this often needs medical personnel to just need manual piston to empty needle to draw outward at a period of time in order to guarantee to produce sufficient negative pressure and guarantee that the drainage is effective, and is another convenient, this kind of drainage structure can only be fixed on one's body the patient through gauze or adhesive tape etc., so also do not benefit to carrying when the patient gets off the bed and move about, this is the problem that faces now.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a subcutaneous continuous negative pressure drainage device to solve current subcutaneous negative pressure drainage device and be high to medical personnel's working strength, be unfavorable for the problem of patient's recovered activity simultaneously.

In order to solve the above problem, the utility model provides a following technical scheme:

a subcutaneous continuous negative pressure drainage device comprises a drainage tube; a negative pressure cavity is arranged at the outlet end of the drainage tube; an internal thread is arranged on one side of the interior of the cavity of the negative pressure cavity far away from the drainage tube; the negative pressure piston shaft is arranged in the cavity of the negative pressure cavity; the negative pressure piston shaft comprises a rubber end, and one side of the rubber end is fixed on the threaded telescopic rod; the threaded telescopic rod is matched with the internal thread of the negative pressure cavity to ensure that the negative pressure piston shaft is movably arranged in the negative pressure cavity, and the other end of the threaded telescopic rod is detachably connected with an output shaft of the servo motor through a coupling; the servo motor is connected with the controller through a lead; one outer end face of the negative pressure cavity is arc-shaped, and a fixed cushion is further mounted on the outer end face of the arc-shaped cavity; the fixing soft cushion is also provided with a bandage.

Preferably, the both ends of bandage are provided with the public female face that the magic was pasted respectively, and still install the square ring of adjustable bandage length on the bandage.

Preferably, the inlet end of the drainage tube is of a round table structure with the small end facing outwards, more than one strip-shaped hole is formed in the inlet end of the drainage tube, and the length direction of the strip-shaped hole is consistent with the axial direction of the drainage tube.

Furthermore, the size of the external surface area of the truncated cone-shaped inlet end of the drainage tube occupied by all the strip-shaped holes is not more than 20%.

Preferably, a one-way valve is arranged at the joint of the drainage tube and the negative pressure cavity.

Preferably, the fixed cushion comprises a sponge layer, a sterilized cotton cushion layer and a non-woven fabric layer in sequence from the outer end face of the negative pressure cavity to the outside.

Preferably, the negative pressure cavity is made of PVC transparent material, and the negative pressure cavity is further provided with scale marks.

The utility model discloses beneficial effect:

the utility model discloses a device which generates enough negative pressure by means of the movement of a servo motor driving a piston shaft in a negative pressure cavity to lead a drainage tube to drain from the subcutaneous part of a patient, reduces the working strength of the interval operation of medical personnel, and provides reliable fixing measures for the patient by arranging a fixed cushion with a binding band on the negative pressure cavity so as to facilitate the getting-off bed rehabilitation activity of the patient; on the other hand, the utility model discloses the dismouting is convenient, can reduce the probability that the drainage tube was blockked up by human tissue, and the structure is reliable, can effectively prevent to flow back.

Drawings

Fig. 1 is a schematic structural view of the present invention in an embodiment;

FIG. 2 is a view taken in the direction A of FIG. 1;

fig. 3 is a schematic three-dimensional structure diagram of a negative pressure chamber in an embodiment of the present invention;

FIG. 4 is a schematic view of a three-dimensional enlarged structure at the inlet end of the draft tube;

fig. 5 is a schematic structural view of the fixing cushion according to the embodiment of the present invention;

description of reference numerals: 1. drainage tube, 2, negative pressure chamber, 3, negative pressure piston axle, 4, shaft coupling, 5, servo motor, 6, fixed cushion, 7, bandage, 8, check valve, 9, square ring, 11, bar hole, 31, rubber end, 32, screw telescopic link, 61, sponge layer, 62, aseptic cotton bed course, 63, non-woven fabrics layer.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

example (b):

referring to fig. 1 and 3, the present embodiment provides a subcutaneous continuous negative pressure drainage device, which includes a drainage tube 1; a negative pressure cavity 2 is arranged at the outlet end of the drainage tube 1; an internal thread is arranged on one side of the interior of the cavity of the negative pressure cavity 2, which is far away from the drainage tube 1; the negative pressure piston shaft 3 is arranged in the cavity of the negative pressure cavity 2; the negative pressure piston shaft 3 comprises a rubber end head 31, and one side of the rubber end head 31 is fixed on a threaded telescopic rod 32; the threaded telescopic rod 32 is matched with the internal thread of the negative pressure cavity 2, so that the negative pressure piston shaft 3 is movably arranged in the negative pressure cavity, and the other end of the threaded telescopic rod 32 is detachably connected with the output end of the servo motor 5 through the coupler 4; the servo motor 5 is connected with the controller through a lead; one outer end face of the negative pressure cavity 2 is arc-shaped, and a fixed cushion 6 is further mounted on the outer end face of the arc-shaped; the fixed cushion 6 is also provided with a binding band 7. In the embodiment, the diameter of the outer tube of the drainage tube is 3.0mm, and the model is 10 Fr; the threaded telescopic rod 32 is of a multi-section rod-shaped structure, as shown in fig. 2, two adjacent sections of rods on the threaded telescopic rod 32 are installed through a fixed block at the tail of the previous section of rod and a guide sliding groove on the side end of the next section of rod, and the telescopic effect of the rods is met by means of the movement of the fixed block in the sliding groove; the controller is a single chip microcomputer which is internally provided with unit electric pulses capable of being released, and an external power supply is connected to the servo motor 5.

The both ends of bandage 7 are provided with the public female face that the magic was pasted respectively, and still install the square ring 9 of adjustable bandage 7 length on bandage 7. Can adjust the length of bandage 7 through square ring 9 and improve its suitability, and use the magic to paste the both ends of bandage 7 and fix the dismouting of being convenient for.

The inlet end of the drainage tube 1 is of a round table structure with an outward small end, more than one strip-shaped hole 11 is formed in the inlet end of the drainage tube 1, and the length direction of the strip-shaped hole 11 is consistent with the axial direction of the drainage tube 1. In the embodiment, the diameter of the end surface of the inlet end of the drainage tube 1 with the truncated cone structure is 2.2 mm; just the round platform is high for 8mm, and the figure of bar hole 11 is 4, and evenly distributed is on the round platform, and the size of a single bar hole 11 is 0.5mm 2mm, can effectively reduce the probability that 1 entry end of drainage tube is blockked up by the tissue through setting up bar hole 11.

The size of the external surface area of the truncated cone-shaped inlet end of the drainage tube 1 occupied by all the strip-shaped holes 11 is not more than 20%. In order to ensure that the structure of the truncated cone-shaped inlet end does not deform, the occupied size of the strip-shaped hole 11 needs to be limited, and in the embodiment, the outer surface area of the truncated cone is about 24mm²The total area of the strip-shaped holes 11 is 4mm²。

A one-way valve 8 is arranged at the joint of the drainage tube 1 and the negative pressure cavity 2. In this embodiment, the one-way valve 8 only allows the drainage tube 1 to enter the negative pressure cavity 2, and the one-way valve 8 can effectively prevent the body fluid in the negative pressure cavity 2 from flowing back into the body of the patient through the drainage tube 1, thereby enhancing the protection.

The fixed cushion 6 comprises a sponge layer 61, a sterilized cotton cushion layer 62 and a non-woven fabric layer 63 in sequence from the outer end face of the negative pressure cavity 2 to the outside. The sponge layer 61 has the function of providing elastic deformability, so that the sponge layer can be conveniently attached to different parts of the body of a patient; the cotton pad layer 62 is used for disinfecting, and the non-woven fabric layer 63 is mainly used for absorbing sweat.

The negative pressure cavity 2 is made of PVC transparent material, and the negative pressure cavity 2 is also provided with scale marks. In order to facilitate medical staff to judge the condition of a patient by observing body fluid collected in the negative pressure cavity 2, the negative pressure cavity is made of PVC materials and is provided with scale marks.

When the utility model is used, after the servo motor 5 is externally connected with a power supply, the drainage tube 1 is inserted into the position to be drained on the patient, the controller releases electric pulses at intervals to drive the servo motor 5 to rotate, the threaded telescopic rod 32 is driven to rotate by means of the coupler 4, so that the threaded end of the threaded telescopic rod 32 is matched and stretched with the internal thread of the negative pressure cavity 2, and negative pressure is produced in the negative pressure cavity 2 so that body fluid enters the negative pressure cavity 2 along the drainage tube 1; when the patient needs to get out of bed, the negative pressure cavity 2 can be pressed on the body of the patient through the fixed cushion 6 and is fastened by the binding belt 7.

Claims

1. A subcutaneous continuous negative pressure drainage device, which comprises a drainage tube (1); the method is characterized in that: a negative pressure cavity (2) is arranged at the outlet end of the drainage tube (1); an internal thread is arranged on one side of the inner part of the negative pressure cavity (2) far away from the drainage tube (1); the negative pressure piston shaft (3) is arranged in the cavity of the negative pressure cavity (2); the negative pressure piston shaft (3) comprises a rubber end head (31), and one side of the rubber end head (31) is fixed on the threaded telescopic rod (32); the threaded telescopic rod (32) is matched with the internal thread of the negative pressure cavity (2) to movably install the negative pressure piston shaft (3) in the negative pressure cavity, and the other end of the threaded telescopic rod (32) is detachably connected with an output shaft of the servo motor (5) through a coupler (4); the servo motor (5) is connected with the controller through a lead; one outer end face of the negative pressure cavity (2) is arc-shaped, and a fixed cushion (6) is further mounted on the outer end face of the arc-shaped; the fixed soft cushion (6) is also provided with a binding belt (7).

2. The subcutaneous continuous negative pressure drainage device according to claim 1, wherein: the two ends of the bandage (7) are respectively provided with a male surface and a female surface of a magic tape, and the bandage (7) is also provided with a square ring (9) capable of adjusting the length of the bandage (7).

3. The subcutaneous continuous negative pressure drainage device according to claim 1, wherein: the inlet end of the drainage tube (1) is of a round table structure with the small end outwards, more than one strip-shaped hole (11) is formed in the inlet end of the drainage tube (1), and the length direction of the strip-shaped hole (11) is consistent with the axial direction of the drainage tube (1).

4. The subcutaneous continuous negative pressure drainage device according to claim 3, wherein: the size of the external surface area of the truncated cone-shaped inlet end of the drainage tube (1) occupied by all the strip-shaped holes (11) is not more than 20%.

5. The subcutaneous continuous negative pressure drainage device according to claim 1, wherein: a one-way valve (8) is arranged at the joint of the drainage tube (1) and the negative pressure cavity (2).

6. The subcutaneous continuous negative pressure drainage device according to claim 1, wherein: the fixed cushion (6) comprises a sponge layer (61), a sterilized cotton cushion layer (62) and a non-woven fabric layer (63) in sequence from the outer end face of the negative pressure cavity (2) to the outside.

7. The subcutaneous continuous negative pressure drainage device according to claim 1, wherein: the negative pressure cavity (2) is made of PVC transparent material, and scale marks are further arranged on the negative pressure cavity (2).