CN114392411A - Postoperative drainage device for breast cancer - Google Patents

Postoperative drainage device for breast cancer Download PDF

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Publication number
CN114392411A
CN114392411A CN202210184321.6A CN202210184321A CN114392411A CN 114392411 A CN114392411 A CN 114392411A CN 202210184321 A CN202210184321 A CN 202210184321A CN 114392411 A CN114392411 A CN 114392411A
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CN
China
Prior art keywords
negative pressure
chamber
cavity
piston
gear
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Pending
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CN202210184321.6A
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Chinese (zh)
Inventor
蒋延凤
邓茜茜
黄吉燕
蒋美玲
魏玲
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First Peoples Hospital of Longquanyi District Chengdu
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First Peoples Hospital of Longquanyi District Chengdu
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Application filed by First Peoples Hospital of Longquanyi District Chengdu filed Critical First Peoples Hospital of Longquanyi District Chengdu
Priority to CN202210184321.6A priority Critical patent/CN114392411A/en
Publication of CN114392411A publication Critical patent/CN114392411A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/18General characteristics of the apparatus with alarm
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3379Masses, volumes, levels of fluids in reservoirs, flow rates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00Anatomical parts of the body
    • A61M2210/10Trunk
    • A61M2210/1007Breast; mammary

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  • External Artificial Organs (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention belongs to the technical field of medical drainage devices, and particularly relates to a postoperative drainage device for breast cancer, which comprises a negative pressure bin and a partition plate arranged in the negative pressure bin; the negative pressure bin is divided into an equipment chamber and a negative pressure chamber by the partition plate; a piston is arranged in the negative pressure chamber, and the negative pressure chamber is divided into a front chamber and a rear chamber by the piston; the front cavity is communicated with a liquid accumulation cavity through a pipeline, and the liquid accumulation cavity is communicated with a drainage tube; the piston is connected with a piston rod, the piston rod penetrates through the partition plate through the rear cavity and extends into the equipment cavity, and a driving device capable of driving the piston rod to move and further driving the piston to move back and forth in the negative pressure cavity is arranged in the equipment cavity. According to the invention, the driving device is arranged to drive the piston to move towards one end close to the equipment cavity, so that negative pressure formed by the effusion cavity acts on the surgical wound surface connected with the drainage tube, and negative pressure drainage force is realized; and the adjustment of the negative pressure can be realized by adjusting the output power of the driving device.

Description

Postoperative drainage device for breast cancer
Technical Field
The invention belongs to the technical field of medical drainage devices, and particularly relates to a postoperative drainage device for breast cancer.
Background
At present, the breast cancer operation modes adopted in China mainly include a classical radical operation, an improved radical operation, an enlarged radical operation, a simple mastectomy, a partial mastectomy and the like, generally, except the mastectomy, drainage needs to be carried out after other breast cancer operations, the reason is that the surface of an operation wound is large, meanwhile, lymph nodes at axilla parts need to be cleaned, lymph fluid can be accumulated under the skin after the lymph vessels are cut open, and extravasated blood during the operation can also be accumulated under the skin, so that a drainage tube needs to be prevented, the drainage tube is sucked by continuous negative pressure, the accumulated extravasated blood is continuously sucked, a skin flap is attached to the wound surface, the healing of the wound is facilitated, and the necrosis and the infection of the skin flap are prevented.
The negative pressure device that adopts when drainage mainly has at present: rubber tube + disposable negative pressure drainage plate, spherical drainage device with tube, high negative pressure drainage bottle and wall negative pressure suction device. But the fixed negative pressure of negative pressure is predetermine to present negative pressure drainage device and is carried out the drainage, can't adjust the negative pressure according to the condition of difference.
Disclosure of Invention
The invention discloses a postoperative drainage device for breast cancer, which aims to solve the problem that the conventional negative pressure drainage device in the background technology cannot adjust negative pressure according to different conditions.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a postoperative drainage device for breast cancer comprises a negative pressure bin and a clapboard arranged in the negative pressure bin; the negative pressure bin is divided into an equipment chamber and a negative pressure chamber by the partition plate; a piston is arranged in the negative pressure chamber, a sealing ring is sleeved on the contact surface of the piston and the inner side wall of the negative pressure chamber, and the negative pressure chamber is divided into a front chamber and a rear chamber by the piston; the front cavity is communicated with a liquid accumulation cavity through a pipeline, and the liquid accumulation cavity is communicated with a drainage tube; the piston is connected with a piston rod, the piston rod penetrates through the partition plate through the rear cavity and extends into the equipment cavity, and a driving device capable of driving the piston rod to move and further driving the piston to move back and forth in the negative pressure cavity is arranged in the equipment cavity.
According to the invention, the driving device is arranged to drive the piston to move towards one end close to the equipment cavity, and the front cavity is communicated with the effusion cavity, so that negative pressure formed by the effusion cavity acts on the surgical wound surface connected with the drainage tube; the negative pressure drainage force is realized, and the moving speed of the piston can be adjusted by adjusting the output power of the driving device; the adjustment of the negative pressure is realized.
Preferably, the driving device comprises a motor arranged in the cavity of the equipment, a first gear is arranged on an output shaft of the motor, the first gear is meshed with a second gear sleeved on the piston rod, and an inner ring of the second gear is sleeved on the piston rod in a threaded fit manner; and any one end face of the second gear is provided with a raised ring, the outer ring of the raised ring is fixedly sleeved with the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the side wall of the equipment cavity through a fixed rod.
According to the invention, the motor drives the first gear to rotate, the first gear drives the second gear to rotate, and as the inner ring of the second secondary wheel is matched with the piston rod through threads and the second gear is connected to the side wall of the equipment cavity through the bearing and the fixed rod, the piston rod can be driven to move back and forth by the rotation of the second gear, so that the piston is driven to move back and forth in the negative pressure cavity; the second gear and the piston rod are driven in a threaded matching mode, so that the control precision is more accurate, and the motor rotates slowly to drive the piston rod to retract slowly due to the threaded matching mode, so that a patient can gradually adapt to stable negative pressure.
Further, the diameter of the first gear is smaller than that of the second gear. The diameter of the first gear is smaller than that of the second gear, so that the large gear is driven by the small gear to rotate, and the retraction of the piston rod is further slowed down due to the fact that the large gear is driven by the small gear to rotate, and the comfort of a patient is further guaranteed. For example, after five revolutions of the pinion gear, the bull gear rotates one revolution, and at this time, the piston retracts by the distance of the adjacent threads on the piston rod. The time for the output shaft of the motor to rotate for one circle can be adjusted by adjusting the output power of the motor; for example, a direct current motor controls the output power of the motor by setting a resistor, thereby realizing the control of the time for the motor to rotate for one circle; moreover, how to control the rotating speed of the direct current motor is common technical knowledge of technicians in the field, so the invention is not described again; a touch display screen with a voice broadcasting function is arranged on the outer wall of the negative pressure chamber or the equipment chamber, an adjusting button is arranged on the touch display screen, and the rotating speed of the motor is adjusted through the adjusting button; the output power of the motor can be adjusted according to the current comfort level of the patient by the patient or medical staff, and then the rotating speed of the output shaft of the motor is adjusted, so that the comfort level of the patient is guaranteed.
Furthermore, at least two horizontal guide rods are installed at the end of the piston rod positioned in the equipment cavity, and one end of each guide rod close to the side wall of the equipment cavity is matched with a sliding groove formed in the side wall of the equipment cavity; the sliding chutes are distributed along the length direction of the equipment chamber. Through setting up the spout cooperates with the one end of guide arm, the effectual axial rotation who prevents the piston rod.
Further, one end of the guide rod matched with the sliding groove is provided with a roller; through setting up the gyro wheel, reduced the frictional force between spout and the guide arm.
Further, an exhaust hole is arranged in the equipment chamber. The back pressure in the back chamber and the device chamber is avoided by providing a vent in the device chamber.
Further, a liquid level sensor is arranged in the effusion chamber; detecting accumulated liquid in the accumulated liquid cavity by arranging a liquid level sensor, identifying whether liquid flows into the accumulated liquid cavity at the current moment, and if no liquid flows into the accumulated liquid cavity, alarming by a touch display screen to remind a patient, an attendant or a medical worker to turn off the device; avoid the phenomenon of empty inhalation to cause the discomfort of the patient.
Further, the front cavity is communicated with the top of the effusion cavity through a pipeline, and the drainage tube is connected to the lower end of the side wall of the effusion cavity. Preceding cavity passes through the pipeline intercommunication at the top of hydrops cavity, and the drainage tube is connected at the lateral wall lower extreme of hydrops cavity, has avoided the hydrops to flow into preceding cavity, and then avoids causing the pollution to preceding cavity, influences the used repeatedly in negative pressure storehouse.
Further, a pressure sensor is arranged in the front chamber; according to the invention, the negative pressure in the front chamber is detected by the pressure sensor and displayed by the display screen, so that medical personnel can adjust the negative pressure value according to the current negative pressure value. A
Further, the effusion chamber is hung on a hanging lug arranged on the shell of the negative pressure cabin through a hook; be convenient for with the hydrops cavity is dismantled, guarantees the reuse in negative pressure storehouse.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the driving device is arranged to drive the piston to move towards one end close to the equipment cavity, and the front cavity is communicated with the effusion cavity, so that negative pressure formed by the effusion cavity acts on the surgical wound surface connected with the drainage tube; the negative pressure drainage force is realized, and the moving speed of the piston can be adjusted by adjusting the output power of the driving device; the adjustment of the negative pressure is realized.
2. According to the invention, the motor drives the first gear to rotate, the first gear drives the second gear to rotate, and as the inner ring of the second secondary wheel is matched with the piston rod through threads and the second gear is connected to the side wall of the equipment cavity through the bearing and the fixed rod, the piston rod can be driven to move back and forth by the rotation of the second gear, so that the piston is driven to move back and forth in the negative pressure cavity; the second gear and the piston rod are driven in a threaded matching mode, so that the control precision is more accurate, and the motor rotates slowly to drive the piston rod to retract slowly due to the threaded matching mode, so that a patient can gradually adapt to stable negative pressure.
3. The diameter of the first gear is smaller than that of the second gear, so that the large gear is driven by the small gear to rotate, and the retraction of the piston rod is further slowed down due to the fact that the large gear is driven by the small gear to rotate, and the comfort of a patient is further guaranteed. For example, after five revolutions of the pinion gear, the bull gear rotates one revolution, and at this time, the piston retracts by the distance of the adjacent threads on the piston rod. The time for the output shaft of the motor to rotate for one circle can be adjusted by adjusting the output power of the motor; for example, a direct current motor controls the output power of the motor by setting a resistor, thereby realizing the control of the time for the motor to rotate for one circle; moreover, how to control the rotating speed of the direct current motor is common technical knowledge of technicians in the field, so the invention is not described again; a touch display screen with a voice broadcasting function is arranged on the outer wall of the negative pressure chamber or the equipment chamber, an adjusting button is arranged on the touch display screen, and the rotating speed of the motor is adjusted through the adjusting button; the output power of the motor can be adjusted according to the current comfort level of the patient by the patient or medical staff, and then the rotating speed of the output shaft of the motor is adjusted, so that the comfort level of the patient is guaranteed.
4. Through setting up the spout cooperates with the one end of guide arm, the effectual axial rotation who prevents the piston rod.
5. Detecting accumulated liquid in the accumulated liquid cavity by arranging a liquid level sensor, identifying whether liquid flows into the accumulated liquid cavity at the current moment, and if no liquid flows into the accumulated liquid cavity, alarming by a touch display screen to remind a patient, an attendant or a medical worker to turn off the device; avoid the phenomenon of empty inhalation to cause the discomfort of the patient.
6. According to the invention, the negative pressure in the front chamber is detected by the pressure sensor and displayed by the display screen, so that medical personnel can adjust the negative pressure value according to the current negative pressure value.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the external structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the negative pressure chamber of the present invention.
Fig. 3 is a schematic view of the large gear structure of the present invention.
Description of reference numerals: 1. a negative pressure bin; 2. a liquid accumulation chamber; 3. a drainage tube; 4. hooking; 5. a front chamber; 6. a piston; 7. a rear chamber; 8. a partition plate; 9. a piston rod; 10. a motor; 11. a first gear; 12. a second gear; 13. fixing the rod; 14. a chute; 15. a guide bar; 16. an exhaust hole; 17. a raised ring; 18. and a bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of embodiments of the present application, generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
Example 1: referring to fig. 1 and 2, a postoperative drainage device for breast cancer comprises a negative pressure chamber 1 and a partition plate 8 arranged in the negative pressure chamber 1; the negative pressure cabin 1 is divided into an equipment chamber and a negative pressure chamber by the clapboard 8; a piston 6 is arranged in the negative pressure chamber, a sealing ring is sleeved on the contact surface of the piston 6 and the inner side wall of the negative pressure chamber, and the negative pressure chamber is divided into a front chamber 5 and a rear chamber 7 through the piston 6; the front chamber 5 is communicated with a liquid accumulation chamber 2 through a pipeline, and the liquid accumulation chamber 2 is communicated with a drainage tube 3; the piston 6 is connected with a piston rod 9, the piston rod 9 penetrates through the partition plate 8 through the rear cavity 7 and extends into the cavity of the equipment, and a driving device capable of driving the piston rod 9 to move and further driving the piston 6 to move back and forth in the negative pressure cavity is arranged in the cavity of the equipment.
According to the invention, the driving device is arranged to drive the piston 6 to move towards one end close to the equipment cavity, and the front cavity 5 is communicated with the effusion cavity 2, so that negative pressure formed by the effusion cavity 2 acts on the surgical wound surface connected with the drainage tube 3; the negative pressure drainage force is realized, and the moving speed of the piston 6 can be adjusted by adjusting the output power of the driving device; the adjustment of the negative pressure is realized.
Referring to fig. 1, the length of the drainage tube 3 is set according to practical application;
referring to fig. 2 and 3, the driving device includes a motor 10 installed in the chamber of the apparatus, a first gear 11 is installed on an output shaft of the motor 10, the first gear 11 is engaged with a second gear 12 sleeved on the piston rod 9, and an inner ring of the second gear 12 is sleeved on the piston rod 9 through a thread fit; any end face of the second gear 12 is provided with a convex ring 17, an inner ring of a bearing 18 is fixedly sleeved on an outer ring of the convex ring 17, and the outer ring of the bearing 18 is fixedly connected to the side wall of the equipment cavity through a fixing rod 13.
According to the invention, the motor 10 drives the first gear 11 to rotate, the first gear 11 drives the second gear 12 to rotate, and because the inner ring of the second secondary wheel is matched with the piston rod 9 through threads and the second gear 12 is connected to the side wall of the equipment cavity through the bearing 18 and the fixed rod 13, the piston rod 9 can be driven to move back and forth by the rotation of the second gear 12, and the piston 6 is further driven to move back and forth in the negative pressure cavity; the second gear 12 and the piston rod 9 are driven in a threaded fit mode, so that the control precision is more accurate, and the motor 10 rotates slowly to drive the piston rod 9 to retract in the threaded fit mode, so that the motor is extremely slow, and a patient can gradually adapt to stable negative pressure.
Referring to fig. 2, the diameter of the first gear 11 is smaller than the diameter of the second gear 12. The diameter of the first gear 11 is smaller than that of the second gear 12, so that the large gear is driven by the small gear to rotate, and the retraction of the piston rod 9 is further slowed down due to the fact that the large gear is driven by the small gear to rotate, and the comfort of a patient is further guaranteed. For example, after five revolutions of the pinion, the bull gear rotates one revolution, and the piston 6 retracts by the distance of the adjacent threads on the piston rod 9. The time for the output shaft of the motor 10 to rotate for one circle can be adjusted by adjusting the output power of the motor 10; for example, the direct current motor 10 controls the output power of the motor 10 by setting a resistor, thereby realizing the control of the time for the motor 10 to rotate for one circle; and how to control the rotation speed of the dc motor 10 is common technical knowledge of those skilled in the art, so the present invention is not described in detail; a touch display screen with a voice broadcasting function is arranged on the outer wall of the negative pressure chamber or the equipment chamber, an adjusting button is arranged on the touch display screen, and the rotating speed of the motor 10 is adjusted through the adjusting button; the output power of the motor 10 can be adjusted by patients or medical staff according to the current comfort level of the patients, and then the rotating speed of the output shaft of the motor 10 is adjusted, so that the comfort level of the patients is ensured.
Referring to fig. 2, at least two horizontal guide rods 15 are installed at the end of the piston rod 9 located in the equipment chamber, and one end of each guide rod 15 close to the side wall of the equipment chamber is matched with a sliding groove 14 arranged on the side wall of the equipment chamber; the chute 14 runs along the length of the equipment chamber. By arranging the sliding groove 14 to be matched with one end of the guide rod 15, the axial rotation of the piston rod 9 is effectively prevented.
A roller is arranged at one end of the guide rod 15 matched with the sliding groove 14; by providing the roller, the friction between the slide groove 14 and the guide rod 15 is reduced.
A vent 16 is provided in the apparatus chamber. The back pressure in the back chamber 7 and the apparatus chamber is avoided by providing a vent 16 in the apparatus chamber.
A liquid level sensor is arranged in the effusion chamber 2; detecting the accumulated liquid in the accumulated liquid chamber 2 by arranging a liquid level sensor, identifying whether liquid flows into the accumulated liquid chamber 2 at the current moment, and if no liquid flows into the accumulated liquid chamber, alarming by a touch display screen to remind a patient, an attendant or a medical worker to turn off the device; avoid the phenomenon of empty inhalation to cause the discomfort of the patient.
The front cavity 5 is communicated with the top of the effusion cavity 2 through a pipeline, and the drainage tube 3 is connected with the lower end of the side wall of the effusion cavity 2. Preceding cavity 5 passes through the pipeline intercommunication at the top of hydrops cavity 2, and drainage tube 3 is connected at the lateral wall lower extreme of hydrops cavity 2, cavity 5 before having avoided the hydrops to flow in, and then avoids leading to the fact the pollution to preceding cavity 5, influences the used repeatedly in negative pressure storehouse 1.
A pressure sensor is arranged in the front chamber 5; according to the invention, the negative pressure in the front chamber 5 is detected by the pressure sensor and displayed by the display screen, so that medical personnel can adjust the negative pressure value according to the current negative pressure value. A
Referring to the attached drawing 1, the effusion chamber 2 is hung on a hanging lug arranged on the shell of the negative pressure chamber 1 through a hook 4; be convenient for with hydrops cavity 2 is dismantled, guarantees the reuse in negative pressure storehouse 1.
Example 2: the difference from the above embodiment 1 is that the driving device of the embodiment 2 uses an electric push rod, and the telescopic end of the electric push rod is connected with the piston rod 9; the piston rod 9 is driven by the electric push rod to move back and forth, and then the piston 6 is driven to move back and forth. However, in the case of embodiment 1 and embodiment 2, the present invention is preferentially applied to embodiment 1 because the control accuracy of embodiment 1 is higher than that of embodiment 2.
In the invention, the touch display screen with a control function is connected with the motor 10, and the display screen acquires the detection information of the pressure sensor and the liquid level sensor to control the rotating speed of the motor 10 or control the starting and stopping of the motor 10; or an alarm is given through a display screen to remind related personnel to turn off the motor 10. However, the touch display screen with the control function and the alarm function is available in the market at present, and is the prior art, and how to receive the detection information of the pressure sensor and the liquid level sensor through the control module in the touch display screen is a conventional technical means of those skilled in the art, so the invention is not described in detail; and the detection information of the pressure sensor and the liquid level sensor received by the touch display screen is used to control the motor 10 to make corresponding actions, which is also a conventional technical means of those skilled in the art, and therefore, the present invention is not described in detail herein.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims (10)

1. A postoperative drainage device for breast cancer is characterized by comprising a negative pressure bin (1) and a clapboard (8) arranged in the negative pressure bin (1); the negative pressure bin (1) is divided into an equipment chamber and a negative pressure chamber by the partition plate (8); a piston (6) is arranged in the negative pressure chamber, a sealing ring is sleeved on the contact surface of the piston (6) and the inner side wall of the negative pressure chamber, and the negative pressure chamber is divided into a front chamber (5) and a rear chamber (7) through the piston (6); the front chamber (5) is communicated with a liquid accumulation chamber (2) through a pipeline, and the liquid accumulation chamber (2) is communicated with a drainage tube (3); a piston rod (9) is connected to the piston (6), the piston rod (9) penetrates through the partition plate (8) through the rear cavity (7) and extends into the cavity of the equipment, and a driving device capable of driving the piston rod (9) to move and further driving the piston (6) to move back and forth in the negative pressure cavity is arranged in the cavity of the equipment.
2. The postoperative drainage device for breast cancer according to claim 1, wherein the driving device comprises a motor (10) installed in the cavity of the apparatus, a first gear (11) is installed on the output shaft of the motor (10), the first gear (11) is meshed with a second gear (12) sleeved on the piston rod (9), and the inner ring of the second gear (12) is sleeved on the piston rod (9) through a threaded fit; any one end face of the second gear (12) is provided with a raised ring (17), the outer ring of the raised ring (17) is fixedly sleeved with the inner ring of a bearing (18), and the outer ring of the bearing (18) is fixedly connected to the side wall of the equipment cavity through a fixing rod (13).
3. The postoperative drainage device for breast cancer according to claim 2, characterized in that the diameter of the first gear (11) is smaller than the diameter of the second gear (12).
4. The postoperative drainage device for breast cancer according to claim 2, wherein the end of the piston rod (9) in the cavity of the device is provided with at least two horizontal guide rods (15), and one end of each guide rod (15) close to the side wall of the cavity of the device is matched with a sliding groove (14) arranged on the side wall of the cavity of the device; the chute (14) runs along the length of the equipment chamber.
5. The postoperative drainage device for breast cancer according to claim 4, wherein a roller is arranged at one end of the guide rod (15) matched with the chute (14).
6. The postoperative drainage device for breast cancer according to claim 1, characterized in that a vent hole (16) is provided in the chamber of the apparatus.
7. A postoperative drainage device for breast cancer according to claim 1, wherein a liquid level sensor is arranged in the effusion chamber (2).
8. The postoperative drainage device for breast cancer according to claim 1, wherein the front chamber (5) is connected to the top of the effusion chamber (2) through a pipeline, and the drainage tube (3) is connected to the lower end of the side wall of the effusion chamber (2).
9. The postoperative drainage device for breast cancer according to claim 1, characterized in that a pressure sensor is installed in the anterior chamber (5).
10. The postoperative drainage device for breast cancer according to claim 1, characterized in that the effusion chamber (2) is hung on a hanger arranged on the shell of the negative pressure chamber (1) by a hook (4).
CN202210184321.6A 2022-02-21 2022-02-21 Postoperative drainage device for breast cancer Pending CN114392411A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202210184321.6A CN114392411A (en) 2022-02-21 2022-02-21 Postoperative drainage device for breast cancer

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CN115111888A (en) * 2022-08-01 2022-09-27 江苏捷达粮食设备有限公司 Self-adaptive precise control grain drying production device

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CN111388771A (en) * 2020-03-23 2020-07-10 欧翠萍 Drainage nursing device for surgical nursing
CN213608633U (en) * 2020-07-14 2021-07-06 青岛大学附属医院 Thoracic surgery nursing drainage device
CN214318733U (en) * 2020-12-17 2021-10-01 张东 Novel thoracic surgery nursing drainage device
CN112972796A (en) * 2021-03-05 2021-06-18 青岛大学附属医院 Thoracic surgery is with preventing stifled drainage device
CN113616867A (en) * 2021-09-13 2021-11-09 常海斌 Debridement drainage instrument for necrotic focus of acute pancreatitis

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CN115111889A (en) * 2022-08-01 2022-09-27 江苏捷达粮食设备有限公司 High-efficient cereal drying device
CN115111888A (en) * 2022-08-01 2022-09-27 江苏捷达粮食设备有限公司 Self-adaptive precise control grain drying production device
CN115111888B (en) * 2022-08-01 2024-02-13 淮安保粮工程机械有限公司 Self-adaptive precision control grain drying production device
CN115111889B (en) * 2022-08-01 2024-02-13 淮安保粮工程机械有限公司 High-efficient cereal drying device

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