Post-mastectomy drain expression device

Abstract

This invention relates to the field of medical device technology and discloses a postoperative breast drainage tube squeezer, comprising an anti-slip sleeve, a driving roller pressing mechanism, and a pressure adjusting mechanism. Its structure includes a hollow cylinder fixedly installed in the fixed sleeve and having a hollow internal structure; a telescopic rod capable of driving a driven plate; a helical spring placed inside the hollow cylinder and capable of generating an elastic preload on the telescopic rod; and an externally threaded rod capable of changing the elastic force of the helical spring. This postoperative breast drainage tube squeezer utilizes the driving force of the rollers to achieve a roller-pressing effect on the drainage tube, thereby preventing fibrin coagulation and blockage of the tube, maintaining unobstructed drainage, promoting wound healing, and reducing the workload of nurses. Furthermore, the device can adjust the pressure of the rollers on the drainage tube during the roller pressing process according to actual conditions, thereby improving the applicability of the equipment.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a postoperative drainage tube squeezer for breast cancer. Background Technology

[0002] Radical mastectomy is a common surgical procedure for treating breast cancer. Post-operatively, to drain bleeding and fluid from the wound, two drainage tubes are routinely placed. The patency of these tubes directly affects the wound healing process and the patient's post-operative recovery. The first three days after surgery are the peak period for drainage. If fibrin and other deposits in the drainage tubes cannot be drained in time, they can easily coagulate and cause blockage. This not only leads to fluid accumulation causing wound infection and delayed healing, but also significantly increases the patient's post-operative pain and recovery period.

[0003] Currently, the main clinical approach to preventing drainage tube blockage relies on repeated manual squeezing of the drainage tube by medical staff to achieve patency. However, this method has significant drawbacks: Firstly, the high frequency and prolonged duration of postoperative drainage tube patency procedures, coupled with the repetitive squeezing motions, can easily cause occupational injuries such as skin abrasion and joint strain, significantly increasing the physical and mental burden of nursing work. Secondly, the pressure and frequency of manual squeezing depend entirely on the experience of medical staff, making it difficult to standardize the procedure. Insufficient squeezing may not achieve effective patency, while excessive squeezing may damage the drainage tube or cause secondary irritation to the patient's wound, resulting in poor stability and reliability of the procedure.

[0004] In summary, there is an urgent clinical need for a dedicated drainage tube squeezing device that can replace manual labor in performing standardized drainage tube squeezing operations. This would effectively prevent tube blockage, ensure drainage effectiveness, reduce the workload of medical staff, and improve the efficiency and standardization of postoperative care for breast cancer. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a postoperative drainage tube squeezer for breast cancer. Utilizing the driving force of rollers, it can perform a roller-pressing squeezing effect on the drainage tube, thereby preventing fibrin coagulation and blockage of the tube, maintaining unobstructed drainage, promoting wound healing, and reducing the workload of nurses. Furthermore, the device can adjust the pressure of the rollers on the drainage tube during the roller-pressing process according to actual conditions, thereby improving the applicability of the equipment and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a postoperative drainage tube squeezer for breast cancer, comprising an anti-slip sleeve and a drive roller pressing mechanism, the structure of which includes a drive roller and a driven roller capable of pressing the drainage tube, a drive motor capable of driving the drive roller to rotate in a specific direction, a fixed sleeve connecting the drive motor, and a driven plate connecting the driven roller; and a pressure adjusting mechanism, the structure of which includes a hollow column fixedly installed in the fixed sleeve and having a hollow internal structure, a telescopic rod capable of driving the driven plate to move, a helical spring placed inside the hollow column and capable of generating an elastic preload on the telescopic rod, and an external threaded rod capable of changing the elastic force of the helical spring.

[0007] Preferably, the driving roller pressing mechanism further includes a sleeve hole and a rod mounting groove respectively provided in the fixed sleeve and the driven plate. One end of the fixed sleeve is provided with a motor mounting housing integrally formed therewith. One side of the driven plate is provided with a driven shaft integrally formed therewith. A driving motor is fixedly installed in the motor mounting housing. The rotor end of the driving motor is fixedly connected to one end face of the driving roller. One end of the driven roller is connected to the shaft of the driven shaft through a bearing. Limiting protrusions are provided on the outer circumferential surfaces at both ends of the driving roller and the outer circumferential surfaces at both ends of the driven roller.

[0008] Preferably, the driving roller and the driven roller are arranged in a parallel, vertical configuration.

[0009] Preferably, the thickness of the limiting protrusion ring is not greater than the wall thickness of the drainage tube.

[0010] Preferably, the pressure regulating mechanism further includes a longitudinal component movable cavity disposed inside the hollow cylinder. The bottom end of the hollow cylinder is provided with a rod through hole, and the top end of the hollow cylinder is provided with an internal threaded hole. A lower movable plate and an upper movable plate capable of moving along the axial direction of the longitudinal component movable cavity are disposed inside the longitudinal component movable cavity, and the lower movable plate is located directly below the upper movable plate. A helical spring is disposed between the lower movable plate and the upper movable plate. A telescopic rod passing through the rod through hole is fixedly installed at the bottom end of the lower movable plate. The bottom rod of the telescopic rod is fixedly installed inside the rod mounting groove. An external threaded rod is installed in the internal threaded hole through a threaded structure. The bottom rod of the external threaded rod is installed in the top plate of the upper movable plate through a bearing.

[0011] Preferably, the thread structure includes an internal thread structure disposed on the inner wall of the internal thread hole and an external thread structure disposed on the external thread rod body, and the internal thread structure matches the external thread structure.

[0012] Preferably, the structural shape of the perforated cross section of the rod is consistent with the structural shape of the cross section of the telescopic rod, both being polygonal structures, and the structural dimensions of the perforated cross section of the rod are adapted to the structural dimensions of the cross section of the telescopic rod.

[0013] Compared with the prior art, the present invention provides a postoperative drainage tube squeezer for breast surgery, which has the following beneficial effects: By utilizing the driving force of the rollers, the drainage tube can be subjected to a roller-pressing effect, thereby preventing fibrin from coagulating and clogging the tube, maintaining unobstructed drainage, promoting wound healing, and reducing the workload of nurses. In addition, the device can adjust the pressure of the rollers on the drainage tube during the roller pressing process according to the actual situation, thereby improving the applicability of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the driving roller pressing mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the driving roller pressing mechanism in this invention; Figure 5 This is a perspective view of the pressure regulating mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the pressure regulating mechanism in this invention.

[0015] The components include: 1. Anti-slip sleeve; 2. Drive roller pressing mechanism; 21. Fixed sleeve; 22. Sleeve hole; 23. Driven plate; 24. Rod mounting groove; 25. Motor mounting housing; 26. Drive motor; 27. Drive roller; 28. Driven shaft; 29. ​​Driven roller; 210. Limiting protrusion ring; 3. Pressure adjusting mechanism; 31. Hollow column; 32. Longitudinal component movable cavity; 33. Rod through hole; 34. Internal threaded hole; 35. Lower movable plate; 36. Upper movable plate; 37. Telescopic rod; 38. External threaded rod; 39. Helical spring. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1 and Figure 2A postoperative drainage tube squeezer for breast cancer includes an anti-slip sleeve 1, which can be held by medical staff to control the device.

[0018] To achieve the roller-pressing effect on the drainage tube, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 A drive roller pressing mechanism 2 needs to be set up. Its structure includes a drive roller 27 and a driven roller 29 that can press the drainage tube, a drive motor 26 that can drive the drive roller 27 to rotate in a specific direction, a fixed sleeve 21 that connects to the drive motor 26, and a driven plate 23 that connects to the driven roller 29. The drainage tube is clamped between the drive roller 27 and the driven roller 29. Then, the drive motor 26 is started and its rotor direction is controlled so that the drive roller 27 and the driven roller 29 move from one end of the drainage tube to the other end. During the movement, friction is generated between the rotating drive roller 27 and the drainage tube, which forces the drive roller 27 and the driven roller 29 to press the drainage tube. This pressing can prevent fibrin from coagulating and clogging the tube, and keep the drainage smooth.

[0019] For details regarding the specific structure of the drive roller pressing mechanism 2, please refer to [link / reference]. Figure 3 and Figure 4 It also includes a sleeve hole 22 and a rod mounting groove 24 respectively provided in the fixed sleeve 21 and the driven plate 23. One end of the fixed sleeve 21 is provided with a motor mounting housing 25 integrally formed with it. One side of the driven plate 23 is provided with a driven shaft 28 integrally formed with it. A drive motor 26 is fixedly installed in the motor mounting housing 25. The rotor end of the drive motor 26 is fixedly connected to one end face of the drive roller 27. One end of the driven roller 29 is connected to the shaft of the driven shaft 28 through a bearing. Limiting protrusions 210 are provided on the outer circumferential surfaces at both ends of the drive roller 27 and the outer circumferential surfaces at both ends of the driven roller 29. The drive roller 27 and the driven roller 29 are arranged in parallel arrangement, and the thickness of the limiting protrusions 210 is not greater than the wall thickness of the drain tube.

[0020] To achieve effective adjustment of the roller pressure, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 5 and Figure 6A pressure regulating mechanism 3 needs to be set up. Its structure includes a hollow column 31 fixedly installed in the fixed sleeve 21 and having a hollow internal structure, a telescopic rod 37 that can drive the driven plate 23 to move, a helical spring 39 placed inside the hollow column 31 and capable of generating an elastic preload on the telescopic rod 37, and an external threaded rod 38 capable of changing the elastic force of the helical spring 39. When the drainage tube is clamped between the drive roller 27 and the driven roller 29, the external threaded rod 38 is rotated in a directional manner. Due to the threaded connection, the external threaded rod 38 will drive the upper movable plate 36 to move upward. At this time, the distance between the lower movable plate 35 and the upper movable plate 36 increases, and the stroke of the helical spring 39 increases. Therefore, the upward elastic preload of the helical spring 39 on the telescopic rod 37 increases. This elastic preload is the pressure when the drainage tube is rolled. It is sufficient to control this pressure within a reasonable range.

[0021] For details regarding the specific structure of the pressure regulating mechanism 3, please refer to [link / reference]. Figure 5 and Figure 6 It also includes a longitudinal component movable cavity 32 disposed inside the hollow column 31. The bottom end of the hollow column 31 is provided with a rod through hole 33, and the top end of the hollow column 31 is provided with an internal threaded hole 34. The interior of the longitudinal component movable cavity 32 houses a lower movable plate 35 and an upper movable plate 36 capable of moving along the axial direction of the longitudinal component movable cavity 32, with the lower movable plate 35 located directly below the upper movable plate 36. A helical spring 39 is disposed between the lower movable plate 35 and the upper movable plate 36. A telescopic rod 37 passing through the rod through hole 33 is fixedly installed at the bottom end of the lower movable plate 35, and the bottom rod of the telescopic rod 37 is fixedly installed... The rod is installed inside the rod mounting slot 24. An external threaded rod 38 is installed in the internal threaded hole 34 through a threaded structure. The bottom of the external threaded rod 38 is installed in the top plate of the upper movable plate 36 through a bearing. The threaded structure includes an internal thread structure set on the inner wall of the internal threaded hole 34 and an external thread structure set on the rod body of the external threaded rod 38. The internal thread structure matches the external thread structure. The cross-sectional shape of the rod through hole 33 is consistent with the cross-sectional shape of the telescopic rod 37. Both are polygonal structures, and the cross-sectional dimensions of the rod through hole 33 are adapted to the cross-sectional dimensions of the telescopic rod 37.

[0022] In use, the drainage tube is clamped between the drive roller 27 and the driven roller 29. After the drainage tube is clamped between the drive roller 27 and the driven roller 29, the external threaded rod 38 is rotated in a directional manner. Due to the threaded connection, the external threaded rod 38 will drive the upper movable plate 36 to move upward. At this time, the distance between the lower movable plate 35 and the upper movable plate 36 increases, and the stroke of the helical spring 39 increases. Therefore, the upward elastic preload of the helical spring 39 on the telescopic rod 37 increases. This elastic preload is the pressure when the drainage tube is rolled. This pressure can be controlled within a reasonable range. The drive motor 26 is started, and its rotor direction is controlled so that the drive roller 27 and the driven roller 29 move from one end of the drainage tube to the other end. During the movement, friction is generated between the rotating drive roller 27 and the drainage tube, forcing the drive roller 27 and the driven roller 29 to roll the drainage tube. This rolling can prevent fibrin from coagulating and clogging the tube, keeping the drainage smooth.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A postoperative drainage tube squeezer for breast surgery, including an anti-slip sleeve (1), characterized in that: It also includes, The drive roller pressing mechanism (2) includes a drive roller (27) and a driven roller (29) capable of pressing the drainage tube, a drive motor (26) capable of driving the drive roller (27) to rotate in an orientation, a fixed sleeve (21) that connects to the drive motor (26), and a driven plate (23) that connects to the driven roller (29). And a pressure regulating mechanism (3), the structure of which includes a hollow column (31) fixedly installed in a fixed sleeve (21) and having a hollow internal structure, a telescopic rod (37) capable of moving the driven plate (23), a helical spring (39) placed inside the hollow column (31) and capable of generating an elastic preload on the telescopic rod (37), and an external threaded rod (38) capable of changing the elastic force of the helical spring (39).

2. The postoperative drainage tube squeezer according to claim 1, characterized in that: The driving roller pressing mechanism (2) further includes a sleeve hole (22) and a rod mounting groove (24) respectively provided in the fixed sleeve (21) and the driven plate (23). One end of the fixed sleeve (21) is provided with a motor mounting housing (25) integral with it. One side of the driven plate (23) is provided with a driven shaft (28) integral with it. A drive motor (26) is fixedly installed in the motor mounting housing (25). The rotor end of the drive motor (26) is fixedly connected to one end face of the drive roller (27). One end of the driven roller (29) is connected to the shaft of the driven shaft (28) through a bearing. Limiting protrusions (210) are provided on the outer circumferential surfaces at both ends of the drive roller (27) and the outer circumferential surfaces at both ends of the driven roller (29).

3. The postoperative drainage tube squeezer according to claim 2, characterized in that: The driving roller (27) and the driven roller (29) are arranged in an upper and lower parallel configuration.

4. The postoperative drainage tube squeezer according to claim 3, characterized in that: The thickness of the limiting protrusion (210) is not greater than the wall thickness of the drainage tube.

5. The postoperative drainage tube squeezer according to claim 4, characterized in that: The pressure regulating mechanism (3) further includes a longitudinal component movable cavity (32) disposed inside the hollow column (31). The bottom end of the hollow column (31) is provided with a rod through hole (33), and the top end of the hollow column (31) is provided with an internal thread hole (34). The interior of the longitudinal component movable cavity (32) houses a lower movable plate (35) and an upper movable plate (36) capable of moving along the axial direction of the longitudinal component movable cavity (32), and the lower movable plate (35) is located directly opposite the upper movable plate (36). Below, a helical spring (39) is placed between the lower movable plate (35) and the upper movable plate (36). A telescopic rod (37) with a through-hole (33) is fixedly installed at the bottom end of the lower movable plate (35). The bottom rod of the telescopic rod (37) is fixedly installed inside the rod mounting groove (24). An external thread rod (38) is installed in the internal thread hole (34) through a threaded structure. The bottom rod of the external thread rod (38) is installed in the top plate of the upper movable plate (36) through a bearing.

6. The postoperative drainage tube squeezer according to claim 5, characterized in that: The threaded structure includes an internal thread structure located on the inner wall of the internal threaded hole (34) and an external thread structure located on the body of the external threaded rod (38), and the internal thread structure matches the external thread structure.

7. The postoperative drainage tube squeezer according to claim 6, characterized in that: The cross-sectional shape of the rod through hole (33) is consistent with the cross-sectional shape of the telescopic rod (37), both being polygonal structures, and the structural dimensions of the cross-sectional shape of the rod through hole (33) are adapted to the structural dimensions of the cross-sectional shape of the telescopic rod (37).

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