Pressure-adjustable wound drainage device used after breast surgery

Abstract

The invention relates to the technical field of wound drainage devices, in particular to a pressure-adjustable wound drainage device used after breast surgery, which comprises a drainage bottle used for providing negative pressure and a drainage tube with one end communicated with the inside of the drainage bottle, the drainage bottle is provided with an exhaust port, and the drainage bottle at least comprises a compressible part. A first hard plate and a second hard plate opposite to the first hard plate are arranged on the compressible part, the compression direction of the compressible part is the direction in which the first hard plate and the second hard plate are close to each other, and an expansion auxiliary part is further arranged between the first hard plate and the second hard plate. The expansion auxiliary part assists expansion of the compressible part by pushing the first hard plate and the second hard plate to be far away from each other, so that negative pressure power is provided, an existing drainage bottle is transformed, the negative pressure generated by the existing drainage bottle can be adjusted, and the better drainage effect on the existing postoperative breast cancer is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of wound drainage devices, and in particular to a wound drainage device with adjustable pressure for use after breast surgery. Background Art

[0002] The main purpose of using a drainage device after breast cancer surgery is to prevent fluid accumulation in the wound, promote wound healing, and observe the postoperative situation. Specifically: First, prevent fluid accumulation in the wound: breast cancer surgery is extensive and the wound surface is large, so bleeding and exudation are prone to occur after surgery. If these effusions are not discharged in time, they can easily cause hematoma or infection. The drainage device can drain the effusion out of the body, thereby preventing fluid accumulation in the wound. Second, promote wound healing: After the drainage device drains exudate and necrotic tissue from the surgical area, it can reduce the occurrence of infection and promote wound healing. At the same time, the negative pressure suction effect is used to effectively fit the surgical wound together, which is conducive to stopping bleeding from the wound as soon as possible. Third, observe the postoperative situation: By observing the color, nature and amount of the drainage fluid, postoperative complications such as bleeding and infection can be discovered in time, so that corresponding treatment measures can be taken.

[0003] The existing drainage device includes a drainage bottle and a drainage tube. One end of the drainage tube is connected to the drainage bottle, and the other end extends to the inside of the human body. The drainage bottle is made of an elastic and extrudable material, and has an exhaust pipe. Before drainage, the exhaust pipe must be temporarily opened and the drainage tube closed, and the drainage bottle must be squeezed to keep the drainage bottle in a compressed state. Then the exhaust pipe is closed and the drainage tube is in an open state. Since the drainage bottle has a tendency to restore its deformation, negative pressure is generated inside it, that is, negative pressure power occurs. A drainage bag is also connected below the existing drainage bottle, and the drainage fluid content can be read by discharging the drainage fluid in the drainage bottle into the drainage bag.

[0004] The defects of this device are: first, the negative pressure generated by the drainage bottle's own tendency to restore its deformation is not easy to adjust, and in the early stage of the operation, when the patient's wound exudates more or there is a large cavity in the wound, a higher negative pressure value is needed to ensure effective drainage. High negative pressure can more effectively discharge the exudate from the body and promote wound healing. After gradual healing in the later stage, when the patient's wound exudates less and the wound heals well, a lower negative pressure value can be used. Low negative pressure can reduce the stimulation to the patient's wound and promote wound healing. Secondly, in the early stage of the operation, the negative pressure required is relatively large. Traditional drainage bottles are mostly made of silicone, and it is difficult to have sufficient negative pressure by relying on their own tendency to restore deformation.

[0005] Secondly, the existing negative pressure drainage bottle must be in a deflated state to generate negative pressure, so it is impossible to directly measure the existing drainage fluid volume. The traditional method is to introduce the drainage fluid into the drainage bag for measurement, which is very troublesome.

[0006] Based on this need, a wound drainage device with adjustable pressure is designed for use after breast surgery to solve the above problems. Summary of the invention

[0007] The present invention provides a wound drainage device with adjustable pressure for use after breast surgery. The existing drainage bottle is modified so that the negative pressure generated by the existing drainage bottle can be adjusted, thereby achieving a better drainage effect after existing breast cancer surgery.

[0008] The technical problem solved by the present invention is achieved by adopting the following technical solutions: The present invention provides a wound drainage device with adjustable pressure for use after breast surgery, comprising a drainage bottle for providing negative pressure and a drainage tube whose one end is connected to the interior of the drainage bottle, wherein the drainage bottle is provided with an exhaust port, and the drainage bottle comprises at least a compressible part, wherein the compressible part is provided with a first hard plate and a second hard plate arranged opposite to the first hard plate, and the compression direction of the compressible part is the direction in which the first hard plate and the second hard plate approach each other, and an expansion auxiliary component is further provided between the first hard plate and the second hard plate, and the expansion auxiliary component assists the expansion of the compressible part by pushing the first hard plate and the second hard plate away from each other, thereby providing negative pressure power.

[0009] Preferably, the negative pressure power of the drainage bottle is adjusted by arranging expansion auxiliary parts of different numbers, material types or sizes between the first hard plate and the second hard plate.

[0010] Preferably, the expansion auxiliary component is an elastic strip detachably installed between the first hard plate and the second hard plate.

[0011] Preferably, the expansion auxiliary component includes a guide rod with a bottom fixed to the upper surface of the second hard plate and a top sliding through the first hard plate, and a spring sleeved on the outside of the guide rod and located between the first hard plate and the second hard plate.

[0012] Preferably, the expansion auxiliary component is a magnetic block detachably mounted on the first hard plate and the second hard plate respectively, and the polarities of opposite surfaces of the magnetic block on the first hard plate and the magnetic block on the second hard plate repel each other.

[0013] Preferably, the compressible portion is in the shape of a bellows.

[0014] Preferably, the lower part of the compressible part also has an incompressible part, the compressible part and the incompressible part are internally connected, the incompressible part is made of a transparent material, and the surface of the incompressible part has scales.

[0015] Preferably, a drain pipe with a valve is provided at the bottom of the incompressible portion.

[0016] The beneficial effects of the present invention are as follows: by modifying the existing drainage bottle and arranging expansion auxiliary parts of different numbers, material types or sizes on the drainage bottle, the negative pressure power of the drainage bottle can be adjusted to better adapt to drainage after breast cancer surgery.

[0017] By configuring the drainage bottle to be composed of a compressible part and an incompressible part, and providing a scale line on the incompressible part, the amount of drainage fluid can be directly read, that is, the compressible part is used to generate negative pressure, and the incompressible part is used to store and observe the drainage fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation scheme of the present invention or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the prior art of the present invention; Figure 2 It is a cross-sectional view of the prior art of the present invention; Figure 3 It is a structural schematic diagram of the first embodiment of the present invention; Figure 4 is a cross-sectional view of a first embodiment of the present invention; Figure 5 is a schematic structural diagram of a second embodiment of the present invention; Figure 6 is a cross-sectional view of a second embodiment of the present invention; Figure 7 FIG. 4 is a schematic structural diagram of a third embodiment of the present invention.

[0020] In the figure, 1. drainage bottle; 2. drainage tube; 3. drainage bag; 4. connecting tube; 5. exhaust port; 6. sealing cap; 7. drainage tube; 8. branch tube; 9. compressible part; 10. first hard plate; 11. second hard plate; 12. elastic strip; 13. mounting hole; 14. insertion part; 15. incompressible part; 16. scale; 17. valve; 18. guide rod; 19. convex; 20. spring; 21. bolt; 22. magnet. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0022] In order to enable those skilled in the art to understand the inventive point of the present invention, the prior art involved in the present invention is first introduced, and reference is made to Figure 1 and Figure 2 The present invention relates to an existing drainage device for postoperative breast surgery, comprising a drainage bottle 1 (commonly made of silicone or rubber) with an exhaust port 5 and a drainage tube 2, wherein one end of the drainage tube 2 is connected to the interior of the drainage bottle 1, and the other end is placed inside the human body to achieve drainage of the wound surface inside the human body. The end of the drainage tube 2 placed inside the human body may have two branch tubes 8, one extending to the chest cavity of the human body, and the other extending to the axillary part of the human body. Of course, there may be only one branch tube 8. A drainage bag 3 is also arranged at the lower part of the drainage bottle 1, and the two are connected by a connecting tube 4. A valve 17 is arranged on the connecting tube 4. A drainage tube 7 with a valve 17 is also arranged at the bottom of the drainage bag 3. When in use, the valve 17 on the connecting tube 4 is kept closed and the exhaust port 5 is opened (the exhaust port 5 is provided with a blocking cap 6 for controlling the exhaust port 5 to be opened or closed), and the drainage tube 2 is clamped (generally using a clamp tool), and then an external force is applied to squeeze the drainage bottle 1. After the gas inside the drainage bottle 1 is discharged, the blocking cap 6 is used to close the exhaust port 5, and the clamp is removed from the drainage tube 2, and the external force applied to the drainage bottle 1 is removed. At this time, the drainage bottle 1 has a tendency to restore its deformation, thereby generating negative pressure to achieve adsorption of wound exudate. Secondly, when it is necessary to read the exudate content inside the drainage bottle 1, the drainage tube 2 is closed with a clamp, and then the exhaust port 5 and the valve 17 are opened. At this time, the drainage fluid inside the drainage bottle 1 will enter the drainage bag 3 through the connecting tube 4, and the content of the drainage fluid can be obtained by reading the indication on the drainage bag 3.

[0023] The above-mentioned existing drainage device has the following shortcomings: in the early stage of the operation, when the patient's wound exudates more or there is a large cavity in the wound, a higher negative pressure value is needed to ensure effective drainage. High negative pressure can more effectively discharge the exudate from the body, and the traditional drainage bottle 1 is limited by the material (weak ability to recover deformation or weak elasticity) and volume, and it is difficult to generate a higher negative pressure. At the same time, after gradual healing in the later stage, when the patient's wound exudates less and the wound heals well, a lower negative pressure value can be used. Low negative pressure can reduce the stimulation to the patient's wound and promote wound healing. Therefore, the drainage device for breast cancer surgery needs to adaptively adjust the negative pressure according to the condition of the wound.

[0024] Secondly, the existing drainage bottle 1 is troublesome to read the content through the connected drainage bag 3. Based on this, it is necessary to design a wound drainage device with adjustable pressure for use after breast surgery to solve the above problems.

[0025] The present invention provides a wound drainage device with adjustable pressure for use after breast surgery. The same point as the prior art is that it also includes a drainage bottle 1 and a drainage tube 2 with an exhaust port 5 on the upper part. One end of the drainage tube 2 is connected to the interior of the drainage bottle 1, and the other end is placed inside the wound of the human body to drain the exudate of the wound. The drainage bottle 1 has a compressible part 9, and a first hard plate 10 and a second hard plate 11 are arranged on the compressible part 9. The compression direction of the compressible part 9 is the direction in which the first hard plate 10 approaches the second hard plate 11. By arranging an expansion auxiliary part between the first hard plate 10 and the second hard plate 11, the strength of the tendency of the first hard plate 10 and the second hard plate 11 to move away from each other is increased, thereby providing negative pressure power.

[0026] Specifically, refer to Figure 3 and Figure 4 , which is a first embodiment of a wound drainage device with adjustable pressure after breast surgery provided by the present invention. In the first embodiment, the above expansion auxiliary member can be an elastic strip 12 installed between the first hard plate 10 and the second hard plate 11. When the compressible part 9 is compressed, the first hard plate 10 approaches the second hard plate 11, and the elastic strip 12 is subjected to pressure and bends. When the external force applied to the compressible part 9 is removed, the elastic strip 12 applies a force on the first hard plate 10 and the second hard plate 11, so that a pressure difference occurs between the first hard plate 10 and the second hard plate 11. The tendency to move away from each other increases, thereby increasing the tendency of the compressible part 9 to recover its deformation, and the negative pressure effect is stronger. Specifically, a plurality of mounting holes 13 are provided on the first hard plate 10 and the second hard plate 11, and both ends of the elastic strip 12 have insertion portions 14. The installation can be achieved by installing the insertion portions 14 on the corresponding mounting holes 13. By installing elastic strips 12 of different numbers (four in the figure), different materials (such as plastic or metal) or different sizes (elastic strips 12 of the same material have different widths of elastic areas), the negative pressure intensity can be adjusted.

[0027] Specifically, refer to Figure 5 and Figure 6A second embodiment of a wound drainage device with adjustable pressure for breast surgery provided by the present invention, in the second embodiment, the above-mentioned expansion auxiliary component includes a guide rod 18 fixed on the upper surface of the second hard plate 11 and the top of which slides through the first hard plate 10, and a spring 20 which is sleeved on the outside of the guide rod 18 and is located between the first hard plate 10 and the second hard plate 11. The top of the guide rod 18 is provided with a circular protrusion 19 with a diameter larger than the guide rod 18 to prevent the first hard plate 10 from detaching from the guide rod 18. A sufficient number of guide rods 18 can be installed between the first hard plate 10 and the second hard plate 11. Later, the spring 20 can be screwed onto the outside of the guide rod 18 as needed. By increasing the number of springs 20, the degree of negative pressure can also be adjusted. Of course, the pressure can also be adjusted by replacing the spring 20 with different materials or springs 20 of different sizes (the diameter size of the wire constituting the spring 20).

[0028] Specifically, refer to Figure 7 , which is a third embodiment of a wound drainage device with adjustable pressure for breast surgery provided by the present invention. In the third embodiment, the above-mentioned expansion auxiliary component is a magnetic block 22 that is detachably mounted on the first hard plate 10 and the second hard plate 11, respectively. The polarities of the opposite surfaces of the magnetic block 22 on the first hard plate 10 and the magnetic block 22 on the second hard plate 11 repel each other. The corresponding two magnetic blocks 22 on the first hard plate 10 and the second hard plate 11 are a magnetic repulsion group. By installing different numbers of magnetic repulsion groups, the magnitude of the negative pressure can be adjusted. Of course, the magnitude of the negative pressure can also be adjusted by using magnetic repulsion groups of different materials or different sizes. Specifically, the magnetic block 22 can be locked on the first hard plate 10 and the second hard plate 11 by bolts 21 to achieve installation and disassembly.

[0029] Furthermore, in the above three embodiments, in order to ensure that the compressible portion 9 can undergo compressive deformation according to a preset trajectory when squeezed and to avoid irregular deformation causing an impact on the expansion auxiliary component during the deformation process, the compressible portion 9 is preferably configured to be a bellows shape.

[0030] Furthermore, in order to solve the problem of easy reading of the existing drainage fluid content, on the basis of the above three embodiments, the drainage bottle 1 has, in addition to the compressible part 9, an incompressible part 15 located below the compressible part 9, wherein the compressible part 9 and the incompressible part 15 are internally connected, that is, the drainage fluid directly falls into the incompressible part 15 after being adsorbed, and there is a scale 16 on the surface of the incompressible part 15, and the amount of drainage fluid can be read by reading the scale 16. Specifically, the incompressible part 15 and the compressible part 9 can both be set to a transparent material, wherein the incompressible part 15 is transparent at least in part with the scale 16 in order to facilitate observation of the color of the drainage fluid and reading of the content value, and preferably the incompressible part 15 is made of an overall transparent material.

[0031] Furthermore, in order to facilitate the drainage of the incompressible part 15, a drainage tube 7 with a valve 17 is also provided at the bottom of the incompressible part 15. When the valve 17 is opened, the drainage can be achieved. Compared with the prior art, the reading is performed by means of a drainage bag 3, which is not only troublesome, but also causes a large number of items to be hung on the overall drainage tube 2, which is also troublesome to carry while walking.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wound drainage device with adjustable pressure for use after breast surgery, comprising a drainage bottle (1) for providing negative pressure and a drainage tube (2) with one end connected to the interior of the drainage bottle (1), wherein the drainage bottle (1) is provided with an exhaust port (5), characterized in that: The drainage bottle (1) comprises at least a compressible portion (9), on which a first hard plate (10) and a second hard plate (11) arranged opposite to the first hard plate (10) are arranged, the compressible portion (9) is compressed in a direction in which the first hard plate (10) and the second hard plate (11) approach each other, and an expansion auxiliary component is further arranged between the first hard plate (10) and the second hard plate (11), the expansion auxiliary component assists the expansion of the compressible portion (9) by pushing the first hard plate (10) and the second hard plate (11) away from each other, thereby providing negative pressure power.

2. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: By arranging expansion auxiliary components of different numbers, material types or sizes between the first hard plate (10) and the second hard plate (11), the negative pressure power of the drainage bottle (1) can be adjusted.

3. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: The expansion auxiliary component is an elastic strip (12) detachably mounted between the first hard plate (10) and the second hard plate (11).

4. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: The expansion auxiliary component comprises a guide rod (18) whose bottom is fixed to the upper surface of the second hard plate (11) and whose top slides through the first hard plate (10); and a spring (20) which is sleeved outside the guide rod (18) and located between the first hard plate (10) and the second hard plate (11).

5. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: The expansion auxiliary component is a magnetic block (22) which is detachably mounted on the first hard plate (10) and the second hard plate (11), respectively, and the polarities of the opposite surfaces of the magnetic block (22) on the first hard plate (10) and the magnetic block (22) on the second hard plate (11) repel each other.

6. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: The compressible portion (9) is in the shape of a bellows.

7. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: The lower part of the compressible part (9) also has an incompressible part (15), the compressible part (9) and the incompressible part (15) are internally connected, the incompressible part (15) is made of a transparent material, and the surface of the incompressible part (15) has scales (16).

8. The wound drainage device with adjustable pressure for use after breast surgery according to claim 1, characterized in that: A liquid discharge pipe (7) having a valve (17) is provided at the bottom of the incompressible portion (15).

Images