CN213251760U

CN213251760U - Syringe type negative pressure drainage tube

Info

Publication number: CN213251760U
Application number: CN202021827481.0U
Authority: CN
Inventors: 任秀娟
Original assignee: Zigong Fourth Peoples Hospital Zigong Emergency Center
Current assignee: Zigong Fourth Peoples Hospital Zigong Emergency Center
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-05-25
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a syringe formula negative pressure drainage tube, including the cylinder, be connected with the cylinder drainage tube, locate the piston in the cylinder and connect the piston handle on the piston, there is a plurality of elastic arc lamella along its circumference evenly distributed on the piston handle, the arc length of arc lamella is greater than the radius of cylinder, the one end fixed connection of arc lamella is on the piston handle, the other end of arc lamella is the free end, the free end of arc lamella is towards the piston and with the inner wall laminating of cylinder, the stiff end of arc lamella is less than with the interval of piston the length of cylinder. The utility model has the advantages of the drainage demand that drainage volume, pipe diameter that can direct observation patient postoperative satisfy narrow and small wound cavity, reduce patient wound cavity and infect probability, reduce patient's treatment cost, improve medical staff's work efficiency and patient's satisfaction that the negative pressure effect is stable, simple structure convenient operation, ability.

Description

Syringe type negative pressure drainage tube

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a syringe formula negative pressure drainage tube.

Background

With the development of medical technology, more and more patients choose to perform local trauma surgery, which is less traumatic, less painful, and faster in recovery. It is often necessary to use a wound drainage tube to drain blood and gas from the surgical residual cavity after surgery to reduce localized fluid accumulation or reduce the chance of pseudocyst formation.

Drainage liquid generated after partial operation of a patient is relatively less, and the traditional wound drainage bottle has larger specification and is mostly spherical, so that medical personnel can not conveniently and directly observe the postoperative drainage volume of the patient; in addition, the traditional drainage tube has a thick tube diameter, cannot meet the drainage requirement of a narrow wound cavity, but is easy to enlarge a wound and causes secondary damage to a patient; present partial doctor replaces through the drainage tube of taking the piston from the system, but the negative pressure effect is unsatisfactory, medical staff work load and patient's wound cavity infection probability have been increased, and, when the piston removes the certain distance, because piston both sides pressure differential is enough big, pressure can pull the piston toward the direction of negative pressure, influence going on of liquid drainage, the current clinical doctor of medical science protects personnel and uses syringe cap cooperation adhesive tape or other instruments to fix the piston rod and prevent the piston bounce-back usually, waste time and energy, fixed effect is unsatisfactory, so far, a syringe formula negative pressure drainage tube that can effectively replace traditional drainage bottle awaits urgent need to study.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a syringe type negative pressure drainage tube has that the negative pressure effect is stable, simple structure convenient operation, can direct observation patient postoperative drainage volume, pipe diameter satisfy narrow and small wound cavity's drainage demand, reduce patient wound cavity and infect probability, reduce patient's treatment cost, improve medical staff's work efficiency and patient's satisfaction's advantage.

The technical scheme of the utility model is that:

the utility model provides a syringe formula negative pressure drainage tube, includes the cylinder, the drainage tube of being connected with the cylinder, locate the piston in the cylinder and connect the piston handle on the piston, there is a plurality of elastic arc lamella along its circumference evenly distributed on the piston handle, the arc length of arc lamella is greater than the radius of cylinder, the one end fixed connection of arc lamella is on the piston handle, the other end of arc lamella is the free end, the free end of arc lamella is towards the piston and with the inner wall laminating of cylinder, the stiff end of arc lamella is less than with the interval of piston the length of cylinder.

The working principle of the technical scheme is as follows:

after the drainage tube is successfully arranged, the piston is pumped to form negative pressure in the drainage tube so as to suck the liquid in the wound cavity, at the moment, the plurality of arc-shaped petals on the piston handle slide along the inner wall of the needle cylinder, when the piston is pumped to make the free ends of the plurality of arc-shaped petals separate from the needle cylinder, because the arc-shaped flap is made of elastic material, the arc-shaped flap can be opened and simultaneously is acted by the force generated by the pressure difference at the two sides of the piston, the whole piston and the piston handle are passively pulled to one end where the drainage tube of the needle cylinder is positioned together with the arc-shaped flap, thereby the arc valve which is opened is fixed at one end of the needle cylinder which is far away from the drainage tube, so that stable negative pressure is formed in the needle cylinder, the continuous suction is generated to the liquid in the wound cavity, the manual fixation is avoided, the operation process of liquid drainage is simplified, the time and the labor are saved, the infection probability of the wound cavity of the patient is reduced, the treatment cost of the patient is reduced, and the working efficiency of medical staff and the satisfaction of the patient are improved.

In a further technical scheme, a drainage tube is connected to the end face of one end of the needle cylinder, and a hollow cylinder wing is sleeved at the other end of the needle cylinder. The design of empty section of thick bamboo wing has enlarged the scope that can support after the arc lamella struts, compares and only relies on the tip of cylinder to fix, and fixed area is bigger, and is more reliable and more stable.

In a further technical scheme, the needle cylinder is made of transparent materials, and scale marks are arranged on the needle cylinder. For ordinary drainage bottle, the specification of syringe formula is less, to the less patient of drainage liquid relatively more can accurate observation drainage volume. The medical staff can select the specification of the syringe barrel according to the size of the wound cavity of the patient or the requirements of the patient.

In a further technical scheme, a connector is arranged on the end face, close to the drainage tube, of the needle cylinder, and the connector is detachably sleeved on the drainage tube. When the drainage liquid in the needle cylinder reaches a certain amount, a new sterile needle cylinder can be replaced, the repeated arrangement of the drainage tube for the patient is avoided, and the infection probability of the patient is reduced.

In a further technical solution, the arc-shaped flap is a plastic sheet or a metal sheet. When the device is actually used, a plastic sheet or a metal sheet with better rigidity is selected, so that the arc-shaped valve can be prevented from being pulled and turned over by the tensile force generated by negative pressure when being supported, and the function of the device can be smoothly realized.

In a further technical scheme, a plurality of holes are formed in the side surface of one end, far away from the needle cylinder, of the drainage tube. The holes on the side surface of the drainage tube can drain residual liquid in the wound cavity at the same time, so that the area of a drainage port is increased, and the drainage efficiency is improved.

In a further technical scheme, the sheetmetal surface is equipped with anti-corrosion coating, prevents that the sheetmetal from being corroded to lead to its function impaired, prolongs this utility model's life.

The preferred 7# drainage tube of drainage tube, the pipe diameter is thinner, more can satisfy the drainage demand in narrow and small wound cavity, reduces the injury to local tissue, can not increase the wound and cause secondary damage to the patient.

The utility model has the advantages that:

1. the piston handle is provided with the plurality of arc-shaped flaps with better rigidity, so that the negative pressure drainage device has the advantages of stable negative pressure effect, simplified operation process of liquid drainage, time and labor saving, reduction of infection probability of wound cavities of patients, reduction of treatment cost of patients, and improvement of working efficiency of medical staff and satisfaction of patients.

2. Adopt transparent material's cylinder and be equipped with the scale mark on the cylinder, for ordinary drainage bottle, the specification of cylinder is less, to the observation drainage volume that the patient that drainage liquid is less relatively can be accurate more.

3. Adopt 7# drainage tube, the pipe diameter is thinner, more can satisfy the drainage demand in narrow and small wound cavity, can not increase the wound and cause secondary damage to the patient.

4. The drainage tube is detachably connected with the needle cylinder, when the drainage liquid in the needle cylinder reaches a certain amount, a new sterile needle cylinder can be replaced, the situation that the patient repeatedly arranges the drainage tube is avoided, and the infection rate of the patient is reduced.

5. The side surface of the drainage tube, which is far away from one end of the needle cylinder, is provided with the hole, so that the area of the drainage port is increased, and the drainage efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a syringe type negative pressure drainage tube according to an embodiment of the present invention when the arc-shaped flap is not spread;

fig. 2 is a schematic structural view of the syringe type negative pressure drainage tube according to the embodiment of the present invention when the arc-shaped flap is spread.

Description of reference numerals:

10. a needle cylinder; 20. a drainage tube; 30. a piston; 40. a piston handle; 50. an arc-shaped flap; 60. a hollow cylinder wing; 70. a connecting head.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example (b):

as shown in fig. 1, a syringe type negative pressure drainage tube, including a syringe 10, a drainage tube 20 connected with the syringe 10, a piston 30 arranged in the syringe 10 and a piston handle 40 connected to the piston 30, a plurality of elastic arc petals 50 are uniformly distributed on the piston handle 40 along the circumference thereof, the arc length of the arc petals 50 is greater than the radius of the syringe 10, one end of the arc petals 50 is fixedly connected to the piston handle 40, the other end of the arc petals 50 is a free end, the free end of the arc petals 50 faces the piston 30 and is attached to the inner wall of the syringe 10, and the distance between the fixed end of the arc petals 50 and the piston 30 is less than the length of the syringe 10.

The working principle of the technical scheme is as follows:

as shown in fig. 1 and 2, after the drainage tube 20 is successfully placed, negative pressure is formed in the drainage tube 20 by drawing the piston 30, so as to suck the liquid in the wound cavity, at this time, the plurality of arc-shaped flaps 50 on the piston handle 40 slide along the inner wall of the syringe 10, at the moment when the piston 30 is drawn to separate the free ends of the plurality of arc-shaped flaps 50 from the syringe 10, because the arc-shaped flaps 50 are made of elastic material, the arc-shaped flaps 50 can be spread, and simultaneously, under the action of force generated by pressure difference at two sides of the piston 30, the whole piston 30 and the piston handle 40 passively pull the arc-shaped flaps 50 towards the end of the drainage tube 20 of the syringe 10, so that the spread arc-shaped flaps 50 are fixed at the end of the syringe 10 far away from the drainage tube 20, so that stable negative pressure is formed in the syringe 10, continuous suction is generated to the liquid in the wound cavity, manual fixation is, time and labor are saved, the infection probability of the wound cavity of the patient is reduced, the treatment cost of the patient is reduced, and the working efficiency of medical staff and the satisfaction of the patient are improved.

In another embodiment, as shown in fig. 1 and 2, a drainage tube 20 is connected to an end surface of one end of the needle cylinder 10, and a hollow cylinder wing 60 is sleeved on the other end of the needle cylinder 10. The design of the hollow cylinder wing 60 expands the supporting range of the arc-shaped petals 50 after being opened, and compared with the fixation only depending on the end part of the needle cylinder 10, the fixing area is larger, and the fixing is more stable and reliable.

In another embodiment, the syringe 10 is made of transparent material, and the syringe 10 is provided with scale marks. For ordinary drainage bottle, the specification of syringe formula is less, to the less patient of drainage liquid relatively more can accurate observation drainage volume. The gauge of the syringe 10 may be selected by the health care provider based on the size of the wound cavity or the medical needs of the patient.

In another embodiment, as shown in fig. 1 and 2, a connector 70 is disposed on an end surface of the needle cylinder 10 close to the drainage tube 20, and the connector 70 is detachably sleeved on the drainage tube 20. When the drainage liquid in the syringe 10 reaches a certain amount, the sterile syringe 10 can be replaced by a new one, so that the repeated arrangement of the drainage tube 20 by the patient is avoided, and the infection probability of the patient is reduced.

In another embodiment, the arcuate flaps 50 are plastic or metal sheets. In practical use, a plastic sheet or a metal sheet with good rigidity is selected, so that the arc-shaped flap 50 is prevented from being pulled and turned over by the tensile force generated by negative pressure during supporting, and the function of the flap is smoothly realized.

In another embodiment, the drainage tube 20 has a plurality of holes on the side surface away from the end of the syringe 10. The holes on the side surface of the drainage tube 20 can drain residual liquid in the wound cavity at the same time, so that the area of a drainage port is increased, and the drainage efficiency is improved.

In another embodiment, the surface of the metal sheet is provided with an anti-corrosion coating to prevent the metal sheet from being corroded to cause the function of the metal sheet to be damaged, and the service life of the utility model is prolonged.

A No. 7 drainage tube is preferably selected as the drainage tube 20, the tube diameter is thin, the drainage requirement of a narrow wound cavity can be met, the damage to local tissues is reduced, and the secondary damage to a patient caused by a wound cannot be increased.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a syringe formula negative pressure drainage tube, includes the cylinder, with the drainage tube that the cylinder is connected, locate the piston in the cylinder and connect the piston handle on the piston, its characterized in that, there is a plurality of elastic arc lamella along its circumference evenly distributed on the piston handle, the arc length of arc lamella is greater than the radius of cylinder, the one end fixed connection of arc lamella is on the piston handle, the other end of arc lamella is the free end, the free end of arc lamella is towards the piston and with the inner wall laminating of cylinder, the stiff end of arc lamella is less than with the interval of piston the length of cylinder.

2. The syringe type negative pressure drainage tube according to claim 1, wherein a drainage tube is connected to an end surface of one end of the syringe, and a hollow wing is provided at the other end of the syringe.

3. The syringe type negative pressure drainage tube according to claim 1, wherein the syringe is made of transparent material, and the syringe is provided with scale marks.

4. The syringe type negative pressure drainage tube according to claim 1, wherein a connector is provided on an end surface of the syringe close to the drainage tube, and the connector is detachably fitted on the drainage tube.

5. The syringe type negative pressure drainage tube according to claim 1, wherein the arc-shaped flap is a plastic sheet or a metal sheet.

6. The syringe type negative pressure drainage tube according to claim 1, wherein a plurality of holes are opened on a side surface of one end of the drainage tube away from the syringe.

7. The syringe type negative pressure drainage tube according to claim 5, wherein the surface of the metal sheet is provided with an anti-corrosion coating.