A liquid drainage device for minimally invasive surgery

Abstract

The application discloses a liquid drainage device for minimally invasive plastic surgery, and relates to the field of plastic medical instruments, which comprises a drainage tube, one end of the drainage tube is provided with a flow guide pipe, the surface of the flow guide pipe is provided with a squeezing mechanism for squeezing the outside of the flow guide pipe, the squeezing mechanism comprises a squeezing box sleeved on the surface of the flow guide pipe and pressing blocks arranged on both sides of the surface of the flow guide pipe, and the end of the pressing block close to the flow guide pipe is arc-shaped. The flow guide pipe can be squeezed through the opposite movement of the pressing blocks, the inflow speed and amount of the liquid in the drainage bottle can be directly observed, medical staff can timely adjust the squeezing degree of the flow guide pipe according to the actual situation, the drainage can be blocked when the surfaces of the two pressing blocks abut against each other, the drainage bottle can be replaced by the medical staff, and the flow guide pipe can be squeezed by the pressing blocks, so that suitable drainage speed can be selected for patients with different conditions and physical conditions.

Description

Technical Field

[0001] This application relates to the field of plastic surgery medical devices, and in particular to a minimally invasive surgical fluid drainage device for plastic surgery. Background Technology

[0002] Minimally invasive plastic surgery refers to a type of surgery that uses delicate instruments and advanced techniques to achieve cosmetic results with minimal trauma. During the surgery, tissue fluid and blood may seep out from the surgical area. These exudates can be drained from the body in a timely manner through a fluid drainage device, reducing the probability of infection and promoting wound healing.

[0003] Publication number CN218607532U discloses a liquid drainage device for minimally invasive cosmetic surgery, but it still has the following shortcomings in practical use:

[0004] During use, when the waste liquid collection bag is full, the device cannot close the drainage tube in time, thus keeping the device in a continuous drainage state. This can easily lead to leakage when the collection bag is replaced, causing contamination of the surgical area, the bed, and the surrounding environment. Utility Model Content

[0005] To address the issue of drainage failure during drainage bag replacement, this application provides a minimally invasive surgical fluid drainage device for orthopedic procedures.

[0006] This application provides a minimally invasive surgical fluid drainage device for plastic surgery, which adopts the following technical solution:

[0007] A minimally invasive surgical fluid drainage device for plastic surgery includes a drainage tube, one end of which is provided with a guide tube, and the other end of the guide tube away from the drainage tube is fixedly connected to a drainage bottle. The surface of the guide tube is provided with a squeezing mechanism for squeezing the outside of the guide tube and a positioning mechanism for positioning the squeezing mechanism on the surface of the guide tube.

[0008] The positioning mechanism includes a positioning ring sleeved on the surface of the guide tube and positioning blocks disposed on both sides of the surface of the guide tube. The positioning blocks are fixed with a plurality of protrusions for squeezing the outside of the guide tube on the side near the guide tube.

[0009] The extrusion mechanism includes an extrusion box sleeved on the surface of the guide tube and pressure blocks disposed on both sides of the surface of the guide tube, wherein the end of the pressure block near the guide tube is arc-shaped.

[0010] Preferably, the positioning mechanism further includes a positioning seat symmetrically fixed on one side of the positioning ring surface and a driving block disposed in the middle of the positioning seat surface. The end of the driving block near the positioning seat is fixed with a driving rod slidably disposed on the positioning seat surface, and the end of the driving rod away from the driving block is fixed on the side of the positioning block near the driving block.

[0011] The end of the positioning block away from the protrusion is fixed with an elastic element that is fixed inside the positioning seat.

[0012] Preferably, the extrusion mechanism further includes a drive box fixed on one side of the extrusion box surface and a rotating block disposed on one side of the drive box surface. The end of the rotating block near the drive box is fixed with a rotating shaft rotatably disposed on the drive box surface, and the end of the rotating shaft away from the rotating block is fixed with a worm gear rotatably disposed inside the drive box.

[0013] Preferably, the drive box has a worm gear rotatably mounted inside, meshing with a worm. A drive shaft is fixedly mounted on the end of the worm gear near the extrusion box, passing through the side of the extrusion box near the drive box. A bidirectional lead screw is fixedly mounted on the side wall of the extrusion box at the end of the drive shaft away from the drive box. A transmission block is slidably mounted inside the extrusion box and threadedly connected to the surface of the bidirectional lead screw. A transmission frame is fixedly mounted on one side of the surface of the transmission block and slidably mounted inside the extrusion box. A connecting rod is fixedly mounted on the end of the transmission frame away from the transmission block and slidably mounted inside the extrusion box. The end of the connecting rod away from the transmission frame is fixed to the surface of the pressing block.

[0014] Preferably, when the bidirectional lead screw rotates clockwise, the two pressure blocks move closer to each other, and when the bidirectional lead screw rotates counterclockwise, the two pressure blocks move further apart.

[0015] Preferably, the guide tube is made of silicone.

[0016] Preferably, the end of the protrusion furthest from the positioning block is hemispherical.

[0017] Preferably, when the surface of the positioning block is in contact with the surface of the guide tube, the protrusion on the outside of the guide tube causes a hemispherical protrusion to form inside the guide tube.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The opposing movement of the pressure blocks can squeeze the drainage tube, allowing direct observation of the inflow rate and volume of liquid in the drainage bottle. This enables medical staff to adjust the squeezing force of the drainage tube in a timely manner according to the actual situation. At the same time, when the surfaces of the two pressure blocks come into contact with each other, the drainage can be blocked, making it easier for medical staff to replace the drainage bottle. Furthermore, the squeezing of the drainage tube by the pressure blocks allows for the selection of an appropriate drainage rate for patients with different conditions and physical states.

[0020] 2. The squeezing mechanism is positioned by the positioning block, allowing it to detach from the surface of the guide tube. This enables the squeezing mechanism to be used on different guide bottles. During the positioning process, the protrusion squeezes the surface of the guide tube, forming a hemispherical protrusion on the inner wall of the guide tube. This increases the friction between the positioning block and the guide tube, while the protrusion on the inner wall of the guide tube changes the flow path of the liquid, thus improving the practicality of the positioning block. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present application;

[0022] Figure 2 This is a partial three-dimensional structural schematic diagram of this application;

[0023] Figure 3 For this application Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 For this application Figure 2 Enlarged view of point B in the middle;

[0025] Figure 5 This is a partial three-dimensional structural diagram of the extrusion mechanism of this application;

[0026] Figure 6 This is a partial three-dimensional structural diagram of the positioning mechanism of this application;

[0027] Figure 7 For this application Figure 6 Enlarged diagram of point C in the middle.

[0028] Attached reference numerals: 1. Drainage tube; 2. Drainage head; 21. Drainage hole; 3. Drainage bottle; 31. Scale line; 4. Guide tube;

[0029] 5. Positioning mechanism; 51. Positioning ring; 52. Positioning seat; 521. Drive groove; 522. Limiting groove; 523. Movement space;

[0030] 53. Drive block; 54. Drive rod; 541. Limit block; 55. Positioning block; 56. Elastic element; 57. Protrusion;

[0031] 6. Extrusion mechanism; 61. Drive box; 62. Rotating block; 621. Rotating shaft; 622. Worm gear;

[0032] 63. Worm gear; 631. Limiting shaft; 632. Drive shaft;

[0033] 64. Extrusion box; 641. Slide groove; 642. Guide groove; 643. Direction groove;

[0034] 65. Double-acting lead screw; 66. Transmission block; 661. Slide rod; 67. Transmission frame; 671. Guide rod; 68. Connecting rod; 681. Guide rod; 682. Pressure block. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0036] This application discloses a minimally invasive surgical fluid drainage device for plastic surgery.

[0037] Reference Figure 1 A minimally invasive surgical fluid drainage device for plastic surgery includes a drainage tube 1, one end of which is fixedly connected to a drainage head 2. The surface of the drainage head 2 is provided with a drainage hole 21. The diameter range of the drainage head 2 is selected according to different types of plastic surgery. A guide tube 4 is provided at the end of the drainage tube 1 away from the drainage head 2. The connection between the drainage tube 1 and the guide tube 4 is a spiral connection or a snap-fit ​​connection. These two methods are existing and mature connection methods, and the principle will not be detailed. The guide tube 4 is made of silicone. The end of the guide tube 4 away from the drainage tube 1 is fixedly connected to a drainage bottle 3. A scale line 31 is fixed on one side of the surface of the drainage bottle 3. The drainage bottle 3 is made of transparent material, which makes it easy for medical staff to observe the color and state of the liquid. By making the material of the guide tube 4 silicone, the guide tube 4 can adapt to different deformation states.

[0038] Reference Figures 1-7 The surface of the guide tube 4 is provided with a positioning mechanism 5 for positioning the extrusion mechanism 6 on the surface of the guide tube 4. The positioning mechanism 5 includes a positioning ring 51 sleeved on the surface of the guide tube 4. A positioning seat 52 is symmetrically fixed on one side of the surface of the positioning ring 51. A driving block 53 is provided in the middle of the positioning seat 52. A driving rod 54 is fixed on one end of the driving block 53 near the positioning seat 52. A driving groove 521 is opened on the side of the positioning seat 52 near the driving block 53. The driving rod 54 can slide inside the driving groove 521. Limiting blocks 541 are fixed on both sides of the surface of the driving rod 54. Limiting grooves are opened on both sides of the inner wall of the driving groove 521. 522, the limiting block 541 can slide inside the limiting groove 522, the end of the drive rod 54 away from the drive block 53 is fixed with a positioning block 55, the interior of the positioning seat 52 is provided with an active space 523, the side wall of the active space 523 is fixed with an elastic element 56, the end of the elastic element 56 near the drive rod 54 is fixed to one side of the surface of the positioning block 55, under the elastic force of the elastic element 56, the surface of the positioning block 55 is made to fit with the surface of the guide tube 4, and the extrusion mechanism 6 is positioned, and at the same time the positioning mechanism 5 and the extrusion mechanism 6 can be fixed on different pipes, expanding the application range of the positioning mechanism 5 and the extrusion mechanism 6.

[0039] It should be noted that: the elastic element 56 is a spring, and the calculation formula for the spring is: F = kx, where F is the external force on the spring, the unit is: k is the spring constant, the unit is: N / m, and x is the deformation of the spring, the unit is: m. The elastic force of the spring is then calculated so that it can be used in this application.

[0040] Reference Figures 5-7 On the side of the positioning block 55 away from the elastic element 56, a plurality of protrusions 57 for squeezing the outside of the guide tube 4 are fixedly provided. The end of the protrusion 57 away from the positioning block 55 is hemispherical. The protrusion 57 is made of aluminum alloy. When the surface of the positioning block 55 is in contact with the surface of the guide tube 4, the protrusion 57 squeezes the outside of the guide tube 4 to form a hemispherical protrusion inside the guide tube 4. Under the elastic force of the elastic element 56, the protrusion 57 can make the outside of the guide tube 4 concave, and at the same time, it can make the inner wall of the guide tube 4 form a hemispherical protrusion. By setting the protrusion 57, the friction between the positioning block 55 and the guide tube 4 can be increased, and the protrusion formed on the inner wall of the guide tube 4 can be used to disturb the liquid, thereby reducing the formation of liquid film or wall adhesion on the inner wall of the guide tube 4, which helps to improve the drainage efficiency.

[0041] Reference Figures 1-4 The surface of the guide tube 4 is provided with an extrusion mechanism 6 for extruding the outside of the guide tube 4. The extrusion mechanism 6 includes an extrusion box 64 fixed to the end of the positioning ring 51 away from the positioning seat 52. The middle part of the surface of the extrusion box 64 is sleeved on the surface of the guide tube 4. A drive box 61 is fixed to one side of the surface of the extrusion box 64. A rotating block 62 is provided to one side of the surface of the drive box 61. A rotating shaft 621 is fixed to one end of the rotating block 62 near the drive box 61. The rotating shaft 621 is rotatably connected to the side of the drive box 61 near the rotating block 62 via a bearing. The bearing includes an inner ring, an outer ring, rolling elements, and a cage. The bearing is an existing and mature technology, and the principle of the bearing is not described in detail. The outer ring of the bearing on the surface of the rotating shaft 621 is fixedly connected to the side of the drive box 61 near the rotating block 62. The interior of the drive box 61 is provided with... The worm gear 622 meshes with the worm wheel 63. A limiting shaft 631 is fixedly provided on one side of the surface of the worm wheel 63. The end of the limiting shaft 631 away from the worm wheel 63 is rotatably connected to the side wall of the drive box 61 through a bearing. The outer ring of the bearing on the surface of the limiting shaft 631 away from the worm wheel 63 is fixedly connected to the bottom wall of the drive box 61. A drive shaft 632 is fixedly provided on the end of the worm wheel 63 near the extrusion box 64. The drive shaft 632 is rotatably connected to the surface of the extrusion box 64 near the drive box 61 through a bearing. The outer ring of the bearing on the surface of the drive shaft 632 is fixedly connected to the surface of the extrusion box 64 near the drive box 61. Both the worm gear 622 and the worm wheel 63 are made of aluminum alloy. By using the worm gear 622 and the worm wheel 63 for transmission, it can self-lock during the extrusion of the guide tube 4 to prevent the surface of the guide tube 4 from rebounding after being extruded.

[0042] Reference Figures 1-5A double-acting lead screw 65 is fixedly mounted on the end of the drive shaft 632 away from the drive box 61. The end of the double-acting lead screw 65 away from the drive shaft 632 is rotatably connected to the side wall of the extrusion box 64 via a bearing. The outer ring of the bearing on the surface of the end of the double-acting lead screw 65 away from the drive shaft 632 is fixedly connected to the side wall of the extrusion box 64. A drive block 66 is threadedly connected to the surface of the double-acting lead screw 65. A slide rod 661 is fixedly mounted on one side of the surface of the drive block 66. A slide groove 641 is provided inside the extrusion box 64, allowing the slide rod 661 to slide within the slide groove 641. A drive frame 67 is fixedly mounted on one side of the surface of the drive block 66. A guide rod 671 is fixedly mounted on one side of the surface of the drive frame 67. A guide groove 642 is provided inside the extrusion box 64, allowing the guide rod 671 to slide within the guide groove 642. A connecting rod 68 is fixed at one end of the transmission block 66. A guide rod 681 is fixed on one side of the surface of the connecting rod 68. A guide groove 643 is opened inside the extrusion box 64. The guide rod 681 can slide inside the guide groove 643. A pressure block 682 is fixed at the end of the connecting rod 68 away from the transmission frame 67. When the bidirectional screw 65 rotates clockwise, the two pressure blocks 682 move closer to each other. When the bidirectional screw 65 rotates counterclockwise, the two pressure blocks 682 move further away from each other. The end of the pressure block 682 near the guide tube 4 is arc-shaped. The guide tube 4 can be squeezed by the opposing movement of the two pressure blocks 682. The squeezing force on the guide tube 4 and the flow rate of the liquid inside the guide tube 4 can be adjusted by the distance of the opposing movement of the two pressure blocks 682, thereby controlling the liquid diversion speed.

[0043] The implementation principle of the minimally invasive surgical fluid drainage device for plastic surgery in this application embodiment is as follows: Before use, by pulling the drive block 53 away from the middle of the positioning ring 51, the two drive blocks 53 are moved away from each other. The two drive blocks 53 drive the two drive rods 54 away from each other, the two drive rods 54 drive the two positioning blocks 55 away from each other, and the two positioning blocks 55 drive the two protrusions 57 away from each other. The distance between the two protrusions 57 is sufficient for the drainage tube 4 to pass between the two protrusions 57. Then, the positioning mechanism 5 and the squeezing mechanism 6 are sleeved on the surface of the drainage tube 4. When the two positioning blocks 55 move away from each other, they press the elastic element 56, causing the elastic element 56 to deform. When the end of the squeezing box 64 away from the positioning ring 51 contacts the end of the drainage bottle 3 near the drainage tube 4, the drive block is released. 53. The drive rod 54 loses its thrust, the drive rod 54 loses its thrust, the positioning block 55 loses its pressure, the positioning block 55 loses its pressure, the elastic element 56 begins to recover its deformation, so that the positioning block 55 can approach the guide tube 4 through the rebound force of the elastic element 56, the surface of the positioning block 55 away from the elastic element 56 abuts against the surface of the guide tube 4 through the elastic force of the elastic element 56, so that the protrusion 57 squeezes the outside of the guide tube 4, and the material of the guide tube 4 itself can make the protrusion 57 leave a recess on the outside of the guide tube 4, so that the inner wall of the guide tube 4 forms a hemispherical protrusion with the same shape as the end of the protrusion 57 away from the positioning block 55, thereby positioning the positioning mechanism 5 and the squeezing mechanism 6, so that the positioning mechanism 5 and the squeezing mechanism 6 can be fixed on different pipes, expanding the application range of the positioning mechanism 5 and the squeezing mechanism 6.

[0044] By utilizing the protrusion 57 to increase the friction between the surface of the positioning block 55 and the surface of the guide tube 4, the flow state of the liquid can be changed during the diversion process, thereby improving the practicality of the positioning block 55.

[0045] After positioning the positioning mechanism 5 and the squeezing mechanism 6, the drainage tube 4 is fixed to the end of the drainage tube 1 away from the drainage head 2 using a spiral connection. Medical staff need to disinfect the surface of the drainage head 2 and the drainage tube 1 by wiping with medical alcohol or rinsing in a disinfection pool. This disinfection technology is an existing and mature technology, and the principle will not be described in detail. After disinfection, the drainage head 2 is inserted into the area to be drained, and the drainage tube 1 is fixed with tape or a fixing device. Tape and fixing devices are existing and mature technologies, and the principle will not be described in detail.

[0046] The fluid in the drainage area flows into the drainage head 2 through the drainage hole 21. This drainage principle is an existing and mature technology, which will not be described in detail here. The fluid flows from the inside of the drainage head 2 into the drainage tube 1, from the inside of the drainage tube 1 into the guide tube 4, and from the inside of the guide tube 4 into the drainage bottle 3. By observing the position of the fluid relative to the scale line 31, medical staff can notice the amount of fluid stored in the drainage bottle 3 in advance, so that they can prepare a new drainage bottle 3 when it is about to be filled with fluid, and replace the drainage bottle 3 in a timely manner.

[0047] When medical staff need to control the drainage rate, they manually rotate the rotating block 62 counterclockwise. The rotating block 62 drives the rotating shaft 621 to rotate counterclockwise, which in turn drives the worm gear 622 to rotate counterclockwise. The worm gear 622 then drives the worm wheel 63 to rotate clockwise, which in turn drives the transmission shaft 632 to rotate clockwise. The transmission shaft 632 then drives the double-acting screw 65 to rotate clockwise. The double-acting screw 65 causes the two transmission blocks 66 to move closer together, which in turn causes the two transmission frames 67 to move closer together. The two transmission frames 67 then cause the two connecting rods 68 to move closer together. The connecting rod 68 drives the two pressure blocks 682 to move closer together, causing the two pressure blocks 682 to squeeze the surface of the drainage tube 4, thereby changing the diameter of the squeezed part of the drainage tube 4, and thus changing the flow rate of the liquid in the drainage tube 4, controlling the drainage speed of the drainage tube 4. By moving the distance between the two pressure blocks 682, the appropriate drainage speed can be selected for patients with different conditions and physical conditions, and the squeezing force on the drainage tube 4 can be controlled. The flow rate and volume of the liquid in the drainage bottle 3 can be directly seen through the drainage bottle 3, and the squeezing force can be adjusted in time according to the actual situation, improving the accuracy and efficiency of the operation.

[0048] When it is necessary to temporarily stop the drainage, the two pressure blocks 682 are continuously rotated counterclockwise to bring them closer together until they are pressed together. This creates a blockage at the point where the pressure blocks 682 squeeze the drainage tube 4, preventing the liquid that has flowed into the drainage bottle 3 from flowing back into the drainage tube 4 due to pressure changes, thus avoiding potential problems such as infection and blockage caused by backflowing liquid.

[0049] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A minimally invasive surgical fluid drainage device for plastic surgery, characterized in that: Includes a drainage tube (1), one end of which is provided with a guide tube (4), the other end of which is away from the drainage tube (1) is fixedly connected to a drainage bottle (3), and the surface of the guide tube (4) is provided with a squeezing mechanism (6) for squeezing the outside of the guide tube (4) and a positioning mechanism (5) for positioning the squeezing mechanism (6) on the surface of the guide tube (4); The positioning mechanism (5) includes a positioning ring (51) sleeved on the surface of the guide tube (4) and positioning blocks (55) set on both sides of the surface of the guide tube (4). The positioning blocks (55) have multiple protrusions (57) fixed on the side near the guide tube (4) for squeezing the outside of the guide tube (4). The extrusion mechanism (6) includes an extrusion box (64) sleeved on the surface of the guide tube (4) and pressure blocks (682) disposed on both sides of the surface of the guide tube (4). The end of the pressure block (682) near the guide tube (4) is arc-shaped.

2. The minimally invasive surgical fluid drainage device for plastic surgery according to claim 1, characterized in that: The positioning mechanism (5) further includes a positioning seat (52) symmetrically fixed on one side of the surface of the positioning ring (51) and a driving block (53) disposed in the middle of the surface of the positioning seat (52). The driving block (53) has a driving rod (54) slidably disposed on the surface of the positioning seat (52) at one end near the positioning seat (52). The driving rod (54) has a driving rod (54) slidably disposed on the surface of the positioning seat (52) at one end away from the driving block (53). The end of the positioning block (55) away from the protrusion (57) is fixed with an elastic element (56) that is fixed inside the positioning seat (52).

3. The minimally invasive surgical fluid drainage device for plastic surgery according to claim 1, characterized in that: The extrusion mechanism (6) further includes a drive box (61) fixed on one side of the surface of the extrusion box (64) and a rotating block (62) disposed on one side of the surface of the drive box (61). The rotating block (62) has a rotating shaft (621) fixed on the surface of the drive box (61) at one end near the drive box (61), and a worm gear (622) fixed on the inside of the drive box (61) at the other end of the rotating shaft (621) away from the rotating block (62).

4. The minimally invasive surgical fluid drainage device for plastic surgery according to claim 3, characterized in that: The drive box (61) is rotatably equipped with a worm gear (63) that meshes with a worm (622). The end of the worm gear (63) near the extrusion box (64) is fixed with a drive shaft (632) that passes through the side of the extrusion box (64) near the drive box (61). The end of the drive shaft (632) away from the drive box (61) is fixed with a double-acting screw (65) that is rotatably mounted on the side wall of the extrusion box (64). The surface of the double-acting screw (65) is threadedly connected with a transmission block (66) that is slidably mounted inside the extrusion box (64). The surface of the transmission block (66) is fixed with a transmission frame (67) that is slidably mounted inside the extrusion box (64). The end of the transmission frame (67) away from the transmission block (66) is fixed with a connecting rod (68) that is slidably mounted inside the extrusion box (64). The end of the connecting rod (68) away from the transmission frame (67) is fixed to the surface of the pressure block (682).

5. A minimally invasive surgical fluid drainage device for plastic surgery according to claim 4, characterized in that: When the bidirectional lead screw (65) rotates clockwise, the two pressure blocks (682) move closer to each other, and when the bidirectional lead screw (65) rotates counterclockwise, the two pressure blocks (682) move further apart.

6. The minimally invasive surgical fluid drainage device for plastic surgery according to claim 1, characterized in that: The guide tube (4) is made of silicone.

7. A minimally invasive surgical fluid drainage device for plastic surgery according to claim 1, characterized in that: The end of the protrusion (57) away from the positioning block (55) is hemispherical.

8. A minimally invasive surgical fluid drainage device for plastic surgery according to claim 1, characterized in that: When the surface of the positioning block (55) is in contact with the surface of the guide tube (4), the external pressure of the protrusion (57) on the guide tube (4) causes a hemispherical protrusion to form inside the guide tube (4).

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