A device for draining fluid in the body for breast surgery

Abstract

The present invention relates to the technical field of medical drainage equipment, specifically to a kind of internal fluid drainage equipment for breast surgery, including a storage rack, a pair of drainage tubes and a gown for patients to wear, two drainage bottles are placed in the storage rack, a box is provided on the top of the storage rack, a driving mechanism is provided in the middle of the box, two first gas distribution mechanisms and two second gas distribution mechanisms are provided in the box, and the two first gas distribution mechanisms and the two second gas distribution mechanisms are symmetrically arranged relative to the driving mechanism. In the present invention, the driving mechanism drives the first gas distribution mechanism to work to inflate and deflate the pressing airbag group, which can automatically press the breast part of the patient's surgical area, and can knead the accumulated fluid to avoid the accumulation of fluid in the breast tissue, reduce the formation of hematoma or blood clots, and make the accumulated fluid more effectively discharged. In addition, the blood circulation and metabolism of the surrounding tissues are promoted by pressing, the swelling of the surgical area is dissipated, the pain and discomfort of the patient after surgery are relieved, the swelling of the patient is relieved, and the healing process of the tissue is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical drainage equipment, in particular to a body fluid drainage device for breast surgery. Background Art

[0002] Breast surgery is a medical procedure performed for breast disease, including removal of benign breast tumors, removal of breast cancer (such as quadrantectomy, total mastectomy, or partial mastectomy, sometimes with lymph node dissection), reconstructive surgery (breast reconstruction using implants or autologous tissue), and prophylactic mastectomy (preventive surgery performed in cases of strong family history or genetic mutations).

[0003] After breast surgery, fluid will accumulate in the surgical area, which is usually hematoma, lymph fluid and pus. The accumulation of fluid in the surgical area will increase the risk of infection, delay wound healing, and cause tissue necrosis or formation of nodules, affecting postoperative recovery and aesthetic effects. Therefore, after surgery, the fluid in the surgical area needs to be drained out of the body in time to reduce complications, promote wound clean healing, and ensure optimal surgical results.

[0004] At present, breast surgery uses drainage equipment to complete the drainage of body fluids in the breast surgical area. The existing drainage method is to implant a drainage tube into the surgical area of ​​the patient, connect the end of the drainage tube to a negative pressure drainage bottle, and use negative pressure to drain the accumulated fluid in the patient's body into the drainage bottle. However, the existing drainage equipment for breast surgery cannot provide a pressing function for the patient's breast area, and hematoma and some blood clots in the surgical area accumulate in the body, resulting in blockage, and thus cannot be effectively drained, which is not conducive to the recovery of the patient's surgical area and wound.

[0005] In addition, manual pressing of the breast area can also be used to alleviate the above situation. However, manual pressing requires certain medical knowledge. Pressing by non-professionals such as family members and caregivers cannot achieve the desired effect. Manual pressing can only be performed by professional medical staff, which undoubtedly increases the workload of medical staff. Summary of the invention

[0006] The purpose of the present invention is to provide a breast surgery internal fluid drainage device with a kneading function to solve the technical problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions.

[0008] A device for draining fluid accumulation in the body for breast surgery comprises a storage rack, a pair of drainage tubes and a gown for patients to wear, wherein two drainage bottles are placed in the storage rack, a box body is provided on the top of the storage rack, a driving mechanism is provided in the middle of the box body, two first air distribution mechanisms and two second air distribution mechanisms are provided in the box body, the two first air distribution mechanisms and the two second air distribution mechanisms are symmetrically arranged relative to the driving mechanism, the driving mechanism is used to provide drive for the operation of the first air distribution mechanism and the second air distribution mechanism, a lead-in port extending along the width direction of the gown is provided, the two drainage tubes both pass through the lead-in port and extend to the inner and outer sides of the gown, pressing airbag groups are arranged on both sides of the inner surface of the gown, the first air distribution mechanism is connected to the pressing airbag group on the corresponding side, and is used to inflate or deflate the pressing airbag group, the input end of the second air distribution mechanism is connected to the drainage tube on the corresponding side, and the output end is connected to the drainage bottle on the corresponding side, and is used to negatively pressure drain the fluid accumulated in the patient's body into the drainage bottle.

[0009] Preferably, the pressing airbag group includes two airbags A and two airbags B, and the airbags A and airbags B are arranged on the inner surface of the gown along the width direction of the gown, and the airbags A and airbags B are arranged alternately at intervals, wherein when the airbag A is inflated, the airbag B is in a deflated state, and when the airbag A is deflated, the airbag B is in an inflated state.

[0010] Preferably, the first valve mechanism includes a first fixed seat, a first guide cylinder, a partition, a first guide rod, a first piston and four air guide pipes. The first guide cylinder is fixed to the bottom wall of the box body through the first fixed seat. One end of the first guide cylinder has a first sliding hole, and the other end is closed. Three partitions are fixed at intervals in the first guide cylinder to separate the first guide cylinder into four cavities. The four cavities are, in order, guide cavity A, guide cavity B, guide cavity C and guide cavity D in the direction from the first sliding hole to the closed end of the first guide cylinder. The first guide rod is inserted into the first sliding hole through sliding, and slides through the three partitions in turn. A first piston is fixedly mounted on a guide rod and matched in four cavities respectively. Four air guide tubes are connected with the corresponding airbags A and B through the guide openings. The air guide tube connected to one of the airbags A is connected to the side of the guide cavity D close to the first sliding hole, the air guide tube connected to the other airbag A is connected to the side of the guide cavity B close to the first sliding hole, the air guide tube connected to one of the airbags B is connected to the side of the guide cavity C away from the first sliding hole, and the air guide tube connected to the other airbag B is connected to the side of the guide cavity A away from the first sliding hole, wherein both first guide rods cooperate with the driving mechanism structure.

[0011] Preferably, the second gas distribution mechanism includes a second fixed seat, a second guide cylinder, a second guide rod, a second piston, an inlet pipe and an outlet pipe, the second guide cylinder is fixed to the bottom wall of the box body through the second fixed seat, one end of the second guide cylinder has a second sliding hole, and the other end is closed, the second guide rod penetrates and is slidably inserted in the second sliding hole, the second guide rod extends into the second guide cylinder and is equipped with a second piston, the inlet pipe and the outlet pipe are respectively connected to the second guide cylinder and are away from the second sliding hole. The end of the inlet pipe is connected to the drainage pipe on the corresponding side, and the end of the drainage pipe is connected to the drainage bottle on the corresponding side. A one-way valve A is installed in the inlet pipe, and the diversion direction of the one-way valve A is from the inlet pipe to the second guide cylinder. A one-way valve B is installed in the outlet pipe, and the diversion direction of the one-way valve B is from the second guide cylinder to the outlet pipe, and the two second guide rods are matched with the driving mechanism structure.

[0012] Preferably, the driving mechanism includes a base, a pair of U-shaped connecting arms, a rack, a driving motor, a gear and four annular sleeves. The base is fixed on the bottom wall of the box body, and the base is provided with a sliding cavity with two ends passing through. The U-shaped connecting arm is matched and slidably inserted in the sliding cavity. The two ends of the U-shaped connecting arm extend to the front side of the base and are jointly fixed with a rack. The driving motor is fixed on the top of the base, and the gear is fixed on the output shaft of the driving motor and meshes with the rack accordingly. The U-shaped connecting arm is respectively connected to the two second guide rods through two annular sleeves fixed thereunder, and the rack is respectively connected to the two first guide rods through two annular sleeves fixed thereunder.

[0013] Preferably, the four annular sleeves are slidably mounted on the corresponding first guide rod and the second guide rod respectively, and a locking mechanism is provided on the four annular sleeves. When the locking mechanism is locked, the first guide rod or the second guide rod can be locked with the annular sleeve respectively. When the locking mechanism is unlocked, the annular sleeve can slide along the outer wall of the first guide rod or the second guide rod.

[0014] Preferably, an annular cavity is provided around the axis of the annular sleeve, and the locking mechanism includes a micro electric push cylinder, a connecting rod and an arc plate. The micro electric push cylinders are respectively fixed on the corresponding annular sleeves, and the telescopic rod of the micro electric push cylinder extends through the annular cavity. An arc plate is fixed to one end of the connecting rod, and the other end is fixedly connected to the end of the telescopic rod of the micro electric push cylinder. The arc plate is respectively in contact with the corresponding first guide rod and the second guide rod, and anti-slip particles are evenly distributed on the contact surface of each arc plate.

[0015] Preferably, both drainage tubes are connected to a connecting tube, and slices are fixed in a circular array around the axis of the connecting tube, forming a structure with a cross-section of a cross-section in the connecting tube.

[0016] Preferably, the cross-section of the sliding cavity is rectangular, and the cross-section of the U-shaped connecting arm matches the sliding cavity.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0018] 1. The present invention provides a wearable gown and integrates a compression airbag group on the gown. The gown is used to cover the drainage site of the surgical area and hide the implanted end of the drainage tube, thereby improving the aesthetics and concealment of the drainage. In addition, the gown is used to restrain the drainage tube, which is suitable for different patient positions and ensures stability during drainage.

[0019] 2. The present invention drains the accumulated fluid in the patient's body by cooperating with the second air distribution mechanism through the driving mechanism, while the driving mechanism drives the first air distribution mechanism to inflate and deflate the pressing airbag group, which can automatically press the breast area of ​​the patient's operation area, and can disperse the accumulated fluid to avoid the accumulation of fluid in the breast tissue, reduce the formation of hematoma or blood clots, and make the accumulated fluid more effectively discharged. In addition, the pressing can promote the blood circulation and metabolism of the surrounding tissues, dissipate the swelling of the operation area, reduce the patient's postoperative pain and discomfort, reduce the patient's swelling, and improve the healing process of the tissue.

[0020] 3. The automatic pressing provided by the present invention replaces the traditional manual operation of medical staff, reduces labor input, and can continuously and stably perform pressing operations according to preset procedures without the need for continuous manual monitoring, thereby improving work efficiency. At the same time, automatic operation can ensure the consistency of the frequency, strength and duration of pressing, avoids the differences and errors that may be caused by manual operation, and ensures the consistency of treatment effects.

[0021] 4. The present invention arranges airbags A and airbags B alternately at intervals, and reversely designs the inflation and deflation processes of airbags A and airbags B. When the two airbags A are inflated and pressed, the airbag B between the two airbags A deflates and releases pressure; when the two airbags B are inflated and pressed, the airbag A between the two airbags B deflates and releases pressure, thereby forming a buffer zone between the two inflated and pressed areas, which helps the compressed part of the patient to adaptively deform, effectively simulating the action of human kneading, avoiding blood circulation disorders caused by excessive compression coverage, and allowing the patient's surgical area tissue to have a gap to relax and recover when being pressed, reducing the discomfort and pressure caused by continuous compression over a large area.

[0022] 5. The present invention works by driving the motor to rotate, and its output shaft drives the gear to rotate synchronously. The rotating gear meshes with the drive rack and drives the U-shaped connecting arm to slide synchronously along the sliding cavity, thereby realizing reciprocating adjustment of the rack and the U-shaped connecting arm. Under the connection action of the annular sleeve, the corresponding first guide rod and second guide rod can be driven to perform translational adjustment, providing drive for the operation of the first valve mechanism and the second valve mechanism, and the first valve mechanism and the second valve mechanism share the same driving source, thereby reducing the investment in equipment cost.

[0023] 6. The present invention can individually control the working states of the first valve mechanism and the second valve mechanism through the cooperation of the locking mechanism and the annular sleeve, thereby realizing the functions of bilateral breast drainage, bilateral breast compression, simultaneous bilateral breast drainage and compression, unilateral breast drainage, unilateral breast compression and simultaneous unilateral breast drainage and compression. It is suitable for different patients, has high versatility and strong clinical adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is one of the partial structural schematic diagrams of the storage rack in the present invention;

[0026] Figure 3 This is the second schematic diagram of the local structure of the storage rack in the present invention;

[0027] Figure 4 It is one of the schematic diagrams of the local structure of the surface of the gown in the present invention;

[0028] Figure 5 This is the second schematic diagram of the local structure of the surface of the gown in the present invention;

[0029] Figure 6 It is a schematic diagram of the local structure on the bottom wall of the box body in the present invention;

[0030] Figure 7 It is a schematic structural diagram of the first valve mechanism in the present invention;

[0031] Figure 8 is a schematic structural diagram of a second valve train in the present invention;

[0032] Fig. 9 It is a schematic diagram of the driving mechanism structure in the present invention;

[0033] Fig.10 It is a schematic diagram of the cooperation between the first guide rod and the locking mechanism structure in the present invention;

[0034] Fig.11 It is a schematic diagram of the cooperation between the second guide rod and the locking mechanism structure in the present invention;

[0035] Fig.12 This is one of the cross-sectional structural diagrams of the connecting tube in the present invention;

[0036] Fig.13 This is the second schematic diagram of the cross-sectional structure of the connecting tube in the present invention.

[0037] In the figure: 1, storage rack; 11, box; 12, drainage bottle; 2, driving mechanism; 21, base; 211, sliding cavity; 22, U-shaped connecting arm; 23, rack; 24, driving motor; 25, gear; 26, annular sleeve; 261, annular cavity; 27, locking mechanism; 271, micro electric push cylinder; 272, connecting rod; 273, arc plate; 2731, anti-skid particles; 3, first gas distribution mechanism; 31, first fixed seat; 32, first guide cylinder; 321, first sliding hole; 33, partition; 331, diversion cavity A; 332, diversion cavity B; 333, diversion cavity C; 334, flow guide cavity D; 34, first guide rod; 35, first piston; 36, air guide pipe; 4, second valve mechanism; 41, second fixed seat; 42, second guide cylinder; 421, second slide hole; 43, second guide rod; 44, second piston; 45, inlet pipe; 451, one-way valve A; 46, outlet pipe; 461, one-way valve B; 5, cover; 501, threading port; 51, neck strap; 52, restraint belt; 6, drainage tube; 61, connecting tube; 62, dividing section; 7, pressing airbag group; 71, airbag A; 72, airbag B; 73, mother Velcro; 731, child Velcro. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 13 The present invention provides a device for draining fluid in the body for breast surgery, comprising a storage rack 1, a pair of drainage tubes 6, and a gown 5 for a patient to wear. Figure 1 and Figure 4 As shown, the top of the gown 5 has a neck strap 51 for wearing on the patient's neck, and the two sides of the gown 5 have binding straps 52. After the two binding straps 52 are wrapped around the patient's back, they can be connected by Velcro or buttons to achieve the wearing of the gown 5.

[0040] Two drainage bottles 12 are placed in the storage rack 1, and a box body 11 is provided on the top of the storage rack 1. A driving mechanism 2 is provided in the middle of the box body 11, and two first gas distribution mechanisms 3 and two second gas distribution mechanisms 4 are provided in the box body 11. The two first gas distribution mechanisms 3 and the two second gas distribution mechanisms 4 are symmetrically arranged relative to the driving mechanism 2. The driving mechanism 2 is used to provide drive for the operation of the first gas distribution mechanism 3 and the second gas distribution mechanism 4, that is, the drive provided by the operation of the driving mechanism 2 serves as a driving source for the gas distribution work of the first gas distribution mechanism 3 and the second gas distribution mechanism 4.

[0041] The gown 5 is provided with a lead-in port 501 extending along its width direction. Both drainage tubes 6 pass through the lead-in port 501 and extend to the inner and outer sides of the gown 5. One end of the drainage tube 6 located on the inner side of the gown 5 is used for implantation in the surgical area of ​​the patient's body as an end for introducing accumulated fluid.

[0042] Compression airbag groups 7 are arranged on both sides of the inner surface of the gown 5. After the patient puts on the gown 5, the gown 5 covers the patient's chest, and the compression airbag groups 7 on both sides can cover the patient's bilateral breasts and surrounding mammary gland areas respectively. The first air distribution mechanism 3 is connected to the compression airbag group 7 on the corresponding side, and is used to inflate or deflate the compression airbag group 7. The input end of the second air distribution mechanism 4 is connected to the drainage tube 6 on the corresponding side, and the output end is connected to the drainage bottle 12 on the corresponding side, and is used to negatively drain the accumulated fluid in the patient's body into the drainage bottle 12. The drainage bottle 12 is transparent and has scale lines on the outer wall, which is convenient for medical staff to observe and count the drainage volume in the bottle.

[0043] When the device is used to drain the accumulated fluid in the body after the patient's breast surgery, the drainage tube 6 is first implanted in the surgical area of ​​the patient's body, and then the patient wears the gown 5 on the chest, and then the drainage tube 6 is led out from the lead-in port 501 to the outside, and connected to the second air distribution mechanism 4, and then the pressing airbag group 7 is connected to the first air distribution mechanism 3, and the first air distribution mechanism 3 and the second air distribution mechanism 4 are driven by the driving mechanism 2 to work respectively. When the first air distribution mechanism 3 is working, the pressing airbag group 7 can be inflated and deflated, expanding when inflated and shrinking and resetting when deflated, realizing periodic undulating changes, and then the breast part of the patient's surgical area can be automatically pressed. When the second air distribution mechanism 4 is working, the negative pressure of the accumulated fluid in the patient's surgical area can be sucked out and transported to the drainage bottle 12, so as to realize the drainage of the accumulated fluid in the body.

[0044] The present invention provides a wearable gown 5 and integrates a pressing airbag group 7 on the gown 5. The gown 5 is used to cover the drainage part of the surgical area and hide the implanted end of the drainage tube 6, thereby improving the aesthetics and concealment during drainage. In addition, the drainage tube 6 is restrained by the gown 5, which is suitable for different patient positions and ensures stability during drainage.

[0045] Secondly, while the driving mechanism 2 cooperates with the second air distribution mechanism 4 to drain the accumulated fluid in the patient's body, the driving mechanism 2 drives the first air distribution mechanism 3 to inflate and deflate the pressing airbag group 7, which can automatically press the breast area of ​​the patient's operation area, and can disperse the accumulated fluid to avoid the accumulation of fluid in the breast tissue, reduce the formation of hematoma or blood clots, and make the accumulated fluid more effectively discharged. In addition, the pressure can promote blood circulation and metabolism of the surrounding tissues, dissipate swelling in the operation area, reduce the patient's postoperative pain and discomfort, reduce the patient's swelling, and improve the healing process of the tissue.

[0046] The automatic pressing provided by the present invention replaces the traditional manual operation of medical staff, reduces labor input, and can continuously and stably perform the pressing operation according to the preset program without the need for continuous manual monitoring, thereby improving work efficiency. At the same time, the automatic operation can ensure the consistency of the frequency, strength and duration of the pressing, avoids the differences and errors that may be caused by manual operation, and ensures the consistency of the treatment effect.

[0047] Specifically, the pressing airbag group 7 includes two airbags A71 and two airbags B72. The airbags A71 and the airbags B72 are arranged on the inner surface of the coverall 5 along the width direction of the coverall 5, and the airbags A71 and the airbags B72 are arranged alternately at intervals. When the airbag A71 is inflated, the airbag B72 is in a deflated state, and when the airbag A71 is deflated, the airbag B72 is in an inflated state. When the airbag A71 is inflated to the limit state, the airbag B72 is deflated to the limit state, and when the airbag A71 is deflated to the limit state, the airbag B72 is inflated to the limit state.

[0048] The present invention arranges airbags A71 and airbags B72 alternately at intervals, and reversely designs the inflation and deflation processes of airbags A71 and airbags B72. When the two airbags A71 are inflated and pressed, the airbag B72 between the two airbags A71 is deflated and pressure is released; when the two airbags B72 are inflated and pressed, the airbag A71 between the two airbags B72 is deflated and pressure is released. Thus, a buffer zone can be formed between the two inflated and pressed areas, which helps the patient's pressed part to adaptively deform, effectively simulates the action of manual kneading, avoids blood circulation disorders caused by excessive pressing coverage, and allows the patient's surgical area tissue to have a gap to relax and recover when being pressed, reducing the discomfort and pressure caused by continuous pressing over a large area.

[0049] Specifically, the first valve mechanism 3 includes a first fixed seat 31, a first guide cylinder 32, a partition 33, a first guide rod 34, a first piston 35 and four air guide pipes 36. The first guide cylinder 32 is fixed to the inner bottom wall of the box body 11 through the first fixed seat 31. One end of the first guide cylinder 32 has a first sliding hole 321, and the other end is closed. Three partitions 33 are fixed in the first guide cylinder 32 to separate the first guide cylinder 32 into four cavities. The four cavities are connected along the first sliding hole 321. 21 to the direction of the closed end of the first guide cylinder 32, there are guide cavity A331, guide cavity B332, guide cavity C333 and guide cavity D334 in sequence. The first guide rod 34 is slidably inserted in the first sliding hole 321, and slides through the three partitions 33 in sequence. The first pistons 35 are matched and fixedly mounted on the first guide rod 34 and located in the four cavities respectively. The four air guide tubes 36 pass through the guide port 501 to communicate with the corresponding airbags A71 and airbags B72.

[0050] The air guide tube 36 connected to one of the air bags A71 is connected to the side of the guide cavity D334 close to the first slide hole 321, the air guide tube 36 connected to the other air bag A71 is connected to the side of the guide cavity B332 close to the first slide hole 321, the air guide tube 36 connected to one of the air bags B72 is connected to the side of the guide cavity C333 away from the first slide hole 321, and the air guide tube 36 connected to the other air bag B72 is connected to the side of the guide cavity A331 away from the first slide hole 321, wherein the two first guide rods 34 are both coordinated with the drive mechanism 2 structure.

[0051] The first guide rod 34 can be driven to perform reciprocating translational motion by the driving mechanism 2. When the driving mechanism 2 drives the first guide rod 34 and each first piston 35 to move from the first sliding hole 321 to the sealing end of the first guide cylinder 32, the first piston 35 in the guide cavity D334 and the guide cavity B332 can suck out the gas in the airbag A71 through the corresponding air guide pipe 36 to achieve the deflation and pressure relief of the airbag A71. The first piston 35 in the guide cavity C333 and the guide cavity A331 can press the gas in the cavity into the two airbags B72 through the corresponding air guide pipe 36. , to realize the inflation of the airbag B72. When the driving mechanism 2 drives the first guide rod 34 and each first piston 35 to move from the sealed end of the first guide cylinder 32 to the side of the first sliding hole 321, the first piston 35 in the guide cavity D334 and the guide cavity B332 can press the gas in the cavity into the airbag A71 through the air guide pipe 36 to realize the inflation expansion of the airbag A71. At the same time, the first piston 35 in the guide cavity C333 and the guide cavity A331 can draw the gas in the airbag B72 back into the cavity through the air guide pipe 36, thereby realizing the alternating inflation and deflation of the airbags A71 and B72.

[0052] As the instruction manual Figure 5 As shown, a mother Velcro 73 is fixed on the inner surface of the gown 5, and a child Velcro 731 adapted to the mother Velcro 73 is fixed on the back of each airbag A71 and airbag B72, so that the airbag A71 and the airbag B72 can be adhered to the back of the gown 5, and the position of each airbag can be adjusted accordingly according to the drainage position of the drainage tube 6 implanted in the body.

[0053] Specifically, the second valve mechanism 4 includes a second fixed seat 41, a second guide cylinder 42, a second guide rod 43, a second piston 44, an inlet pipe 45 and a discharge pipe 46. The second guide cylinder 42 is fixed to the inner bottom wall of the box body 11 through the second fixed seat 41. One end of the second guide cylinder 42 has a second sliding hole 421, and the other end is closed. The second guide rod 43 penetrates and is slidably inserted in the second sliding hole 421. The second piston 44 is installed on the end of the second guide rod 43 extending into the second guide cylinder 42. The inlet pipe 45 and the discharge pipe 46 are respectively connected to the second guide cylinder 42 and away from the side of the second sliding hole 421. The end of the inlet pipe 45 is connected to the drainage pipe 6 on the corresponding side, and the end of the discharge pipe 46 is connected to the drainage bottle 12 on the corresponding side.

[0054] A one-way valve A451 is installed in the inlet pipe 45, and the flow direction of the one-way valve A451 is from the inlet pipe 45 to the second guide cylinder 42. A one-way valve B461 is installed in the discharge pipe 46, and the flow direction of the one-way valve B461 is from the second guide cylinder 42 to the discharge pipe 46. Both second guide rods 43 cooperate with the drive mechanism 2 structure, as shown in the attached manual. Figure 8 As shown, the arrows in the figure point to the flow diversion directions corresponding to the one-way valve A451 and the one-way valve B461.

[0055] The driving mechanism 2 can drive the second guide rod 43 to perform reciprocating translational motion. When the driving mechanism 2 drives the second guide rod 43 and the second piston 44 to move from the sealed end of the second guide cylinder 42 to the second sliding hole 421, combined with the one-way guide effect of the one-way valve A451 and the one-way valve B461, the second piston 44 moves in a suction manner to generate a negative pressure effect, and then the accumulated fluid in the patient's body can be sucked into the second guide cylinder 42 through the drainage tube 6 and the inlet tube 45 in turn. When the driving mechanism 2 drives the second guide rod 43 and the second piston 44 to move from the second sliding hole 421 to the sealed end of the second guide cylinder 42, combined with the one-way guide effect of the one-way valve A451 and the one-way valve B461, the second piston 44 can press the accumulated fluid in the second guide cylinder 42 into the drainage bottle 12 through the discharge tube 46, thereby achieving a continuous negative pressure drainage effect.

[0056] Specifically, the driving mechanism 2 includes a base 21, a pair of U-shaped connecting arms 22, a rack 23, a driving motor 24, a gear 25 and four annular sleeves 26. The base 21 is fixed to the inner bottom wall of the box body 11. The base 21 is provided with a sliding cavity 211 with two ends passing through. The U-shaped connecting arm 22 is matched and slidably inserted in the sliding cavity 211. The two ends of the U-shaped connecting arm 22 extend to the front side of the base 21 and are jointly fixed with the rack 23. The driving motor 24 is fixed to the top of the base 21. The gear 25 is fixed to the output shaft of the driving motor 24 and meshes with the rack 23 accordingly. In addition, the sliding cavity 211 The cross-section of the U-shaped connecting arm 22 is rectangular, and the cross-sectional shape of the U-shaped connecting arm 22 matches the sliding cavity 211, so that the sliding cavity 211 provides a limiting guiding effect on the U-shaped connecting arm 22, ensuring that the U-shaped connecting arm 22 can only be adjusted horizontally but not flipped, thereby ensuring that the rack 23 and the gear 25 are always in a tight meshing state to avoid misalignment and separation that affect the drive. The U-shaped connecting arm 22 is connected to the two second guide rods 43 respectively through the two annular sleeves 26 fixed thereunder, and the rack 23 is connected to the two first guide rods 34 respectively through the two annular sleeves 26 fixed thereunder.

[0057] By driving the motor 24 to rotate forward and reverse periodically, its output shaft drives the gear 25 to rotate synchronously, and the rotating gear 25 engages the driving rack 23 and drives the U-shaped connecting arm 22 to slide synchronously along the sliding cavity 211, thereby realizing the reciprocating adjustment of the rack 23 and the U-shaped connecting arm 22. Under the connecting action of the annular sleeve 26, the corresponding first guide rod 34 and second guide rod 43 can be driven to perform translational adjustment, providing drive for the operation of the first valve mechanism 3 and the second valve mechanism 4, and the first valve mechanism 3 and the second valve mechanism 4 share the same driving source, thereby reducing the investment in equipment cost.

[0058] Specifically, the four annular sleeves 26 are slidably mounted on the corresponding first guide rod 34 and second guide rod 43 respectively. The four annular sleeves 26 are provided with locking mechanisms 27. When the locking mechanisms 27 are locked, the first guide rod 34 or the second guide rod 43 can be locked with the annular sleeves 26 respectively. When the locking mechanisms 27 are unlocked, the annular sleeves 26 can slide along the outer wall of the first guide rod 34 or the second guide rod 43.

[0059] An annular cavity 261 is provided around the axis of the annular sleeve 26. The locking mechanism 27 includes a micro electric push cylinder 271, a connecting rod 272 and an arc plate 273. The micro electric push cylinder 271 is respectively fixed on the corresponding annular sleeve 26, and the telescopic rod of the micro electric push cylinder 271 extends through the annular cavity 261. One end of the connecting rod 272 is fixed with an arc plate 273, and the other end is fixedly connected to the end of the telescopic rod of the micro electric push cylinder 271. The arc plate 273 is respectively in contact with the corresponding first guide rod 34 and the second guide rod 43. The curvature of the arc plate 273 corresponds to the outer edge curvature of the first guide rod 34 and the second guide rod 43, respectively, to ensure that the arc plate 273 can be matched and pressed on the outer peripheral wall of the first guide rod 34 and the second guide rod 43.

[0060] By extending the micro electric push cylinder 271, the arc plate 273 can be pushed to fit tightly against the first guide rod 34 or the second guide rod 43 under the connection action of the connecting rod 272, so that the annular sleeve 26 is frictionally locked with the first guide rod 34 and the second guide rod 43 respectively. When the driving motor 24 drives the U-shaped connecting arm 22 and the rack 23 to move, the friction force between the arc plate 273 and the first guide rod 34 and the second guide rod 43 is used to drive the first guide rod 34 and the second guide rod 43 to translate. The retraction of the micro electric push cylinder 271 can drive the arc plate 273 to retract and reset into the annular cavity 261, and separate from the first guide rod 34 or the second guide rod 43, thereby canceling the friction locking. When the drive motor 24 drives the U-shaped connecting arm 22 and the rack 23 to move, the annular sleeve 26 is driven to slide along the outer surface of the first guide rod 34 or the second guide rod 43 without friction drive. Therefore, according to actual needs, it is convenient to select and switch the operation of the first valve mechanism 3 and the second valve mechanism 4.

[0061] In addition, anti-skid particles 2731 are evenly distributed on the contact surface of each arc plate 273, which can increase the friction force when the arc plate 273 is pressed against the first guide rod 34 or the second guide rod 43, thereby ensuring stability during driving.

[0062] The present invention can individually control the working states of the first valve mechanism 3 and the second valve mechanism 4 by cooperating with the locking mechanism 27 and the annular sleeve 26, thereby realizing the functions of bilateral breast drainage, bilateral breast compression, simultaneous bilateral breast drainage and compression, unilateral breast drainage, unilateral breast compression and simultaneous unilateral breast drainage and compression. It is suitable for different patients, has high versatility and strong clinical adaptability.

[0063] As the instruction manual Fig.12 And the instruction manual Fig.13As shown, the two drainage tubes 6 are both connected with a connecting tube 61, and the connecting tube 61 has segment slices 62 fixed in a circular array around its axis, forming a structure with a cross-section of a cross-section in the connecting tube 61. After the accumulated fluid is negatively pressured into the drainage tube 6, the cross-section structure formed by the segment slices 62 can be used to break up the hematoma and blood clots in the accumulated fluid to avoid excessive accumulation and subsequent pipeline blockage.

[0064] In addition, it is worth mentioning that a control box (not numbered in the figure) and a control panel (not numbered in the figure) are also provided on the top of the box body 11. The control panel is electrically connected to the controller in the control box. By operating the control panel, the controller can control the corresponding components to work, thereby realizing the electrical control effect of the device. The specific control method and control circuit adopt the existing technology and will not be described in detail.

[0065] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A device for draining fluid in the body for breast surgery, characterized in that: It comprises a storage rack (1), a pair of drainage tubes (6) and a gown (5) for a patient to wear; Two drainage bottles (12) are placed in the storage rack (1); a box body (11) is provided on the top of the storage rack (1); and a driving mechanism (2) is provided in the middle of the box body (11); Two first valve distribution mechanisms (3) and two second valve distribution mechanisms (4) are arranged in the box body (11); the two first valve distribution mechanisms (3) and the two second valve distribution mechanisms (4) are arranged symmetrically relative to the driving mechanism (2); the driving mechanism (2) is used to provide drive for the operation of the first valve distribution mechanism (3) and the second valve distribution mechanism (4); The gown (5) is provided with a guide hole (501) extending along the width direction thereof, the two drainage tubes (6) both pass through the guide hole (501) and extend to the inner and outer sides of the gown (5), and the inner surfaces of the gown (5) are both provided with a pressing airbag group (7); The first air distribution mechanism (3) is in communication with the pressing airbag group (7) on the corresponding side, and is used to inflate or deflate the pressing airbag group (7); The input end of the second gas distribution mechanism (4) is connected to the drainage tube (6) on the corresponding side, and the output end is connected to the drainage bottle (12) on the corresponding side, and is used to negatively drain the accumulated fluid in the patient's body into the drainage bottle (12); The pressing airbag group (7) includes two airbags A (71) and two airbags B (72); The airbags A (71) and the airbags B (72) are arranged on the inner surface of the coverall (5) along the width direction of the coverall (5), and the airbags A (71) and the airbags B (72) are arranged alternately at intervals; When the airbag A (71) is inflated, the airbag B (72) is in a deflated state, and when the airbag A (71) is deflated, the airbag B (72) is in an inflated state; The first gas distribution mechanism (3) comprises a first fixed seat (31), a first guide cylinder (32), a partition (33), a first guide rod (34), a first piston (35) and four gas guide pipes (36); The first guide tube (32) is fixed to the inner bottom wall of the box body (11) through the first fixing seat (31); one end of the first guide tube (32) has a first sliding hole (321), and the other end is closed; Three partitions (33) are fixed at intervals in the first guide tube (32) to separate the first guide tube (32) into four cavities; The four cavities are, in order, a flow guiding cavity A (331), a flow guiding cavity B (332), a flow guiding cavity C (333) and a flow guiding cavity D (334) along a direction from the first sliding hole (321) to the closed end of the first guide cylinder (32); The first guide rod (34) is inserted and slidably mounted in the first sliding hole (321), and slides through the three partitions (33) in sequence; The first pistons (35) are respectively matched and fixedly mounted on the first guide rod (34) and located in the four cavities; The four air guide tubes (36) pass through the guide opening (501) and communicate with the corresponding airbags A (71) and airbags B (72); The air guide tube (36) connected to one of the air bags A (71) is connected to a side of the flow guide cavity D (334) close to the first sliding hole (321); The air guide tube (36) connected to the other air bag A (71) is connected to a side of the flow guide cavity B (332) close to the first sliding hole (321); The air guide tube (36) connected to one of the air bags B (72) is connected to a side of the flow guide cavity C (333) away from the first sliding hole (321); The air guide tube (36) connected to the other air bag B (72) is connected to a side of the flow guide cavity A (331) away from the first sliding hole (321); Wherein, the two first guide rods (34) are both structurally matched with the driving mechanism (2).

2. The device for draining fluid in the breast surgery according to claim 1, characterized in that: The second gas distribution mechanism (4) comprises a second fixed seat (41), a second guide cylinder (42), a second guide rod (43), a second piston (44), an inlet pipe (45) and an outlet pipe (46); The second guide tube (42) is fixed to the inner bottom wall of the box body (11) through the second fixing seat (41); one end of the second guide tube (42) has a second sliding hole (421), and the other end is closed; The second guide rod (43) is inserted and slidably inserted into the second sliding hole (421), and the second piston (44) is installed on the end of the second guide rod (43) extending into the second guide cylinder (42); The inlet pipe (45) and the outlet pipe (46) are respectively connected to the second guide cylinder (42) at a side away from the second sliding hole (421); The end of the inlet pipe (45) is in communication with the drainage pipe (6) on the corresponding side, and the end of the outlet pipe (46) is in communication with the drainage bottle (12) on the corresponding side; A one-way valve A (451) is installed in the inlet pipe (45), and the flow guiding direction of the one-way valve A (451) is from the inlet pipe (45) to the second guide cylinder (42); A one-way valve B (461) is installed in the discharge pipe (46), and the flow guiding direction of the one-way valve B (461) is from the second guide tube (42) to the discharge pipe (46); The two second guide rods (43) are both structurally matched with the driving mechanism (2).

3. The device for draining fluid in the breast surgery according to claim 2, characterized in that: The driving mechanism (2) comprises a base (21), a pair of U-shaped connecting arms (22), a rack (23), a driving motor (24), a gear (25) and four annular sleeves (26); The base (21) is fixed on the inner bottom wall of the box body (11), and a sliding cavity (211) is provided on the base (21) with two ends passing through, and the U-shaped connecting arm (22) is matched and slidably inserted in the sliding cavity (211); Both ends of the U-shaped connecting arm (22) extend to the front side of the base (21) and are jointly fixed with the rack (23); The driving motor (24) is fixed on the top of the base (21), and the gear (25) is fixed on the output shaft of the driving motor (24) and meshes with the rack (23) accordingly; The U-shaped connecting arm (22) is respectively connected to the two second guide rods (43) via the two annular sleeves (26) fixed thereunder; The rack (23) is respectively connected to the two first guide rods (34) via the two annular sleeves (26) fixed thereunder.

4. The device for draining fluid in the breast surgery according to claim 3, characterized in that: The four annular sleeves (26) are respectively slidably mounted on the corresponding first guide rod (34) and the second guide rod (43); The four annular sleeves (26) are each provided with a locking mechanism (27). When the locking mechanism (27) is in locking operation, the first guide rod (34) or the second guide rod (43) can be locked with the annular sleeve (26) respectively. When the locking mechanism (27) is released from locking, the annular sleeve (26) can slide along the outer wall of the first guide rod (34) or the second guide rod (43).

5. The device for draining accumulated fluid in the body for breast surgery according to claim 4, characterized in that: The annular sleeve (26) is provided with an annular cavity (261) around its axis, and the locking mechanism (27) comprises a micro electric push cylinder (271), a connecting rod (272) and an arc plate (273); The micro electric push cylinders (271) are respectively fixed on the corresponding annular sleeves (26), and the telescopic rods of the micro electric push cylinders (271) extend through and into the annular cavity (261); The arc plate (273) is fixed to one end of the connecting rod (272), and the other end is fixedly connected to the end of the telescopic rod of the micro electric push cylinder (271), and the arc plate (273) is respectively in contact with the corresponding first guide rod (34) and the second guide rod (43); Anti-skid particles (2731) are evenly distributed on the contact surface of each of the arc-shaped plates (273).

6. The device for draining accumulated fluid in the body for breast surgery according to claim 1, characterized in that: The two drainage tubes (6) are both connected to a connecting tube (61), and the connecting tube (61) has slices (62) fixed in a circular array around its axis, forming a structure with a cross-section of a cross-section in the connecting tube (61).

7. The device for draining accumulated fluid in the body for breast surgery according to claim 3, characterized in that: The cross section of the sliding cavity (211) is rectangular, and the cross section of the U-shaped connecting arm (22) matches and coincides with the sliding cavity (211).

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