A thoracic surgery drainage tube fixing device with anti-pulling function

Abstract

The present application belongs to the technical field of drainage tube fixing device, and particularly relates to a thoracic surgery drainage tube fixing device with anti-pulling function, which comprises a winding assembly and a one-way locking assembly, wherein the one-way locking assembly is arranged in the winding assembly; the winding assembly comprises a base disc, a winding cylinder and a drainage tube, the base disc is provided with a cylinder, the winding cylinder is rotatably arranged on the cylinder, and the drainage tube is wound on the winding cylinder; the present application can avoid the problem that the pulling force is transmitted to the wound and secondary injury is caused when the drainage tube is pulled by external force through winding and releasing; in addition, in order to avoid the continuous blockage of the flow passage caused by the spontaneous collapse and deflation of the drainage tube, the present application further provides a one-way locking assembly and a winding guide assembly, and the two sides of the drainage tube are limited by the spiral groove, so that the difficulty of collapse is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of drainage tube fixation devices, specifically referring to a cardiothoracic surgical drainage tube fixation device with anti-traction function. Background Technology

[0002] Post-cardiothoracic surgery, the chest drainage tube is a critical lifeline for patients. Traditional fixation methods have significant drawbacks: when the drainage tube is accidentally pulled (e.g., when the patient turns over, gets caught on clothing, or is inadvertently pulled during medical procedures), the resulting tension acts directly on the puncture site between the drainage tube and the body wall. This can lead to two serious consequences: Dislodgement of the tube can lead to emergency complications such as pneumothorax and hemothorax.

[0003] Tissue damage: The tension is directly transmitted to the sensitive intercostal tissues and pleura, causing severe pain, bleeding, or secondary injury.

[0004] Existing "anti-detachment" devices primarily focus on "how to clamp tighter," which is a rigid, reactive approach. The drawback is that when the pulling force exceeds a critical value, either the skin adhesive detaches or the clamped area of ​​the catheter collapses and deforms, neither of which fundamentally dissipates energy or protects the interface. Therefore, there is an urgent need in this field for a mechanical device that can actively respond to, absorb, and resolve unexpected pulling forces, achieving "hard connection, soft protection." Summary of the Invention

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a cardiothoracic surgical drainage tube fixation device with anti-traction function. This solution, through winding and releasing, prevents the transmission of tension to the wound and avoids secondary injury when the drainage tube is subjected to external force. Furthermore, to prevent the drainage tube from spontaneously collapsing and deflated, thus continuously blocking the flow channel, this invention also proposes a one-way locking component and a winding guide component. A spiral groove limits the drainage tube on both sides, increasing the difficulty of collapse. The longer length evenly distributes the rotation angle of the drainage tube, preventing twisting at the wound site and avoiding blockage of the flow channel.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a cardiothoracic surgical drainage tube fixation device with anti-traction function, including a winding assembly and a one-way locking assembly, wherein the one-way locking assembly is disposed in the winding assembly; The winding assembly includes a base plate, a winding cylinder, and a drain tube. The base plate is provided with a cylinder, the winding cylinder is rotatably mounted on the cylinder, and the drain tube is wound around the winding cylinder.

[0007] Preferably, the outer surface of the winding cylinder is provided with a spiral groove, the drainage tube is wound in the spiral groove, the winding cylinder is provided with an inner through hole, one end of the drainage tube passes through the inner through hole into the interior of the cylinder, and is led out through one end of the cylinder to connect with the human body surface.

[0008] By winding and releasing the drainage tube, the tube can be buffered and dissipated by its own elongation when it is pulled by external force, thus avoiding the problem of the pulling force being transmitted to the wound and causing secondary damage.

[0009] Although the drainage tube is a flexible tube, the spiral grooves on both sides of the drainage tube can prevent it from collapsing and becoming flat due to tension and entanglement, thus avoiding blockage of the flow channel.

[0010] When the winding drum rotates, the drainage tube inside the winding drum will have a length that allows it to twist. By distributing the twisting angle of the drainage tube evenly through the longer length, it can avoid twisting of the drainage tube at the wound site, and also prevent the drainage channel from being blocked due to excessive twisting of the drainage tube.

[0011] Furthermore, the one-way locking assembly includes a ratchet ring and a dual-mode spring. The winding cylinder is provided with a stepped hole, and the end of the stepped hole is provided with an axial sliding groove. The ratchet ring is provided with guide bosses evenly distributed in a ring. The guide bosses are engaged and slidably disposed in the axial sliding grooves. One end of the dual-mode spring is fixed to the cylinder, and the other end of the dual-mode spring is fixed to the ratchet ring.

[0012] The essence of a dual-mode spring is a torsion spring, which mainly transmits torque, but still has the ability to make elastic micro-movements in the axial direction. Therefore, by connecting with a ratchet ring, the dual-mode spring can enable the winding drum to have a tendency to rotate and reset, and enable the ratchet ring to have a tendency to slide and reset.

[0013] Preferably, one end of the cylinder is provided with a stepped ring, and a ratchet disc is provided on the stepped ring. The ratchet ring is slidably disposed on the stepped ring and drives the ratchet disc in one direction.

[0014] When the ratchet ring and ratchet disc are engaged, the ratchet ring can only rotate in one direction, thus solving the problem of the drainage tube being continuously stretched when the traction of the drainage tube is stopped (but not fully reset). This achieves the technical effect that the tension on the drainage tube can disappear immediately when the traction of the drainage tube is stopped (without having to wait for the drainage tube to be rewound).

[0015] Preferably, the one-way locking assembly further includes a reset button, the reset button having an array of top rod portions, and the base plate having a ring of through top grooves evenly distributed thereon, the top rod portions being slidably disposed in the top grooves; When the reset button is pressed, it can press against and push the ratchet ring to slide axially.

[0016] The ratchet ring will only reset under the elastic force of the dual-mode spring when it separates from the ratchet disc.

[0017] Furthermore, it also includes a winding guide assembly and a synchronization assembly, wherein the winding guide assembly is disposed outside the base plate, and the synchronization assembly is disposed between the base plate and the winding guide assembly.

[0018] Furthermore, the winding guide assembly includes a housing and an arc-shaped guide plate. The housing is fixed to the base plate and has a window. The arc-shaped guide plate is slidably disposed at the window.

[0019] Preferably, the arc-shaped guide plate is further provided with a radial groove, the drainage tube is slidably disposed in the radial groove, the arc-shaped guide plate is further provided with a nut part inside, the synchronization component includes a screw, and the nut part and the screw are threadedly driven.

[0020] The sliding of the arc-shaped guide plate can guide the drainage tube when the outer shell is wrapped around it, thus avoiding the problem of the drainage tube entering the wrong spiral groove.

[0021] Preferably, the screw is rotatably disposed between the base plate and the outer casing, and the synchronization component further includes a driving gear and a driven gear. The driving gear is fixedly connected to the winding drum, and the driven gear is fixedly connected to the screw. The driving gear and the driven gear mesh and transmit power.

[0022] The synchronous connection between the winding drum and the arc-shaped guide plate can be achieved through the driving gear and the driven gear, thereby ensuring that the lateral movement position of the arc-shaped guide plate is automatically matched with the winding state of the drainage tube.

[0023] The beneficial effects achieved by the present invention using the above structure are as follows: (1) By winding and releasing the drainage tube, the drainage tube can be buffered and relieved by its own elongation when it is pulled by external force, thereby avoiding the problem of the pulling force being transmitted to the wound and causing secondary damage.

[0024] (2) Although the drainage tube is a flexible tube, the spiral groove limits the drainage tube on both sides, which can prevent the drainage tube from collapsing and becoming flat due to tension and entanglement, and block the flow channel.

[0025] (3) When the winding drum is rotating, the drainage tube inside the winding drum will have a length that allows it to twist. By dividing the twisting angle of the drainage tube evenly by the longer length, it can avoid the drainage tube at the wound site from twisting, and also prevent the drainage tube from being blocked due to excessive twisting.

[0026] (4) The essence of the dual-mode spring is a torsion spring, which mainly transmits torque, but still has the elastic micro-motion capability in the axial direction. Therefore, the dual-mode spring, through its connection with the ratchet ring, can enable the winding drum to have a tendency to rotate and reset, and can also enable the ratchet ring to have a tendency to slide and reset.

[0027] (5) When the ratchet ring and the ratchet disc are engaged, the ratchet ring can only rotate in one direction, thereby solving the problem that the drainage tube is continuously pulled when the pulling of the drainage tube stops (but is not fully reset), thus achieving the technical effect that the tension on the drainage tube can disappear immediately when the pulling of the drainage tube stops (without having to wait for the drainage tube to be rewound).

[0028] (6) The ratchet ring will be reset under the elastic force of the double-mode spring when it separates from the ratchet disc.

[0029] (7) By sliding the arc-shaped guide plate, the drain tube can be guided when the outer shell is wrapped around it, thereby avoiding the problem of the drain tube entering the wrong spiral groove.

[0030] (8) The synchronous connection between the winding drum and the arc guide plate can be achieved through the driving gear and the driven gear, thereby ensuring that the lateral position of the arc guide plate is automatically matched with the winding state of the drainage tube. Attached Figure Description

[0031] Figure 1 This is a perspective view of a cardiothoracic surgical drainage tube fixation device with anti-traction function proposed in this invention. Figure 2 This is a front view of a cardiothoracic surgical drainage tube fixation device with anti-traction function proposed in this invention. Figure 3 for Figure 2 A cross-sectional view along section line AA; Figure 4 for Figure 3 A cross-sectional view along the cutting line BB; Figure 5 for Figure 3 A cross-sectional view along the section line CC; Figure 6 This is an exploded structural diagram of a cardiothoracic surgical drainage tube fixation device with anti-traction function proposed in this invention. Figure 7 for Figure 3 A magnified view of a section at point I; Figure 8 for Figure 3 Enlarged view of a section at point II; Figure 9 for Figure 6 A magnified view of a section at point III.

[0032] Among them, 1. Winding assembly, 2. One-way locking assembly, 3. Winding guide assembly, 4. Synchronization assembly, 11. Base plate, 12. Winding cylinder, 13. Drain tube, 21. Ratchet ring, 22. Dual-mode spring, 23. Reset button, 31. Housing, 32. Arc-shaped guide plate, 41. Screw, 42. Drive gear, 43. Driven gear, 111. Cylinder, 112. Stepped ring, 113. Ratchet disc, 114. Top groove, 121. Spiral groove, 122. Inner through hole, 123. Stepped hole, 124. Axial slide groove, 211. Guide boss, 231. Top rod part, 311. Window, 321. Radial slide groove, 322. Nut part.

[0033] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] like Figures 1-9 As shown, the present invention proposes a fixation device for a cardiothoracic surgical drainage tube 13 with anti-traction function, including a winding assembly 1 and a one-way locking assembly 2, wherein the one-way locking assembly 2 is disposed in the winding assembly 1. The winding assembly 1 includes a base plate 11, a winding cylinder 12 and a drain pipe 13. A cylinder 111 is provided on the base plate 11, the winding cylinder 12 is rotatably mounted on the cylinder 111, and the drain pipe 13 is wound around the winding cylinder 12.

[0037] The outer surface of the winding cylinder 12 is provided with a spiral groove 121, and the drainage tube 13 is wound in the spiral groove 121. The winding cylinder 12 is provided with an inner through hole 122. One end of the drainage tube 13 passes through the inner through hole 122 and enters the interior of the cylinder 111, and is led out through one end of the cylinder 111 to connect with the human body surface.

[0038] By winding and releasing the drainage tube 13 through the winding cylinder 12, when the drainage tube 13 is pulled by external force, it can buffer and dissipate the pulling force through its own elongation, thereby avoiding the problem of the pulling force being transmitted to the wound and causing secondary damage.

[0039] Although the drainage tube 13 is a flexible tube, the spiral groove 121 limits the drainage tube 13 on both sides, which can prevent the drainage tube 13 from collapsing and becoming flat due to tension and entanglement, thus avoiding the problem of blockage of the flow channel.

[0040] When the winding drum 12 rotates, the drainage tube 13 located inside the winding drum 12 will have a length that allows it to twist. By distributing the twisting angle of the drainage tube 13 evenly through the longer length, it can avoid the drainage tube 13 at the wound site from twisting, and also prevent the drainage channel from being blocked due to excessive twisting of the drainage tube 13.

[0041] The one-way locking assembly 2 includes a ratchet ring 21 and a dual-mode spring 22. The winding cylinder 12 is provided with a stepped hole 123, and the end of the stepped hole 123 is provided with an axial sliding groove 124. The ratchet ring 21 is provided with guide bosses 211 evenly distributed in a ring. The guide bosses 211 are engaged and slidably disposed in the axial sliding groove 124. One end of the dual-mode spring 22 is fixed to the cylinder 111, and the other end of the dual-mode spring 22 is fixed to the ratchet ring 21.

[0042] The dual-mode spring 22 is essentially a torsion spring, which mainly transmits torque, but still has the ability to make elastic micro-movements in the axial direction. Therefore, through the connection between the dual-mode spring 22 and the ratchet ring 21, the winding drum 12 can have a tendency to rotate and reset, and the ratchet ring 21 can have a tendency to slide and reset.

[0043] One end of the cylinder 111 is provided with a stepped ring 112, and a ratchet disc 113 is provided on the stepped ring 112. The ratchet ring 21 is slidably disposed on the stepped ring 112 and is driven in one direction with the ratchet disc 113.

[0044] When the ratchet ring 21 and the ratchet disc 113 are engaged, the ratchet ring 21 can only rotate in one direction, thereby solving the problem that the drainage tube 13 is continuously stretched when the traction of the drainage tube 13 is stopped (but not fully reset), thus achieving the technical effect that the tension on the drainage tube 13 can disappear immediately when the traction of the drainage tube 13 is stopped (without having to wait for the drainage tube 13 to be rewound).

[0045] The one-way locking assembly 2 also includes a reset button 23, on which a top rod portion 231 is arranged in an array, and a through top groove 114 is evenly distributed in a ring on the base plate 11, with the top rod portion 231 slidingly disposed in the top groove 114. When the reset button 23 is pressed, it can resist and push the ratchet ring 21 to slide axially.

[0046] When the ratchet ring 21 and the ratchet disc 113 separate, the ratchet ring 21 will be reset under the elastic force of the dual-mode spring 22.

[0047] It also includes a winding guide component 3 and a synchronization component 4. The winding guide component 3 is located outside the base plate 11, and the synchronization component 4 is located between the base plate 11 and the winding guide component 3.

[0048] The winding guide assembly 3 includes a housing 31 and an arc-shaped guide plate 32. The housing 31 is fixed to the base plate 11 and has a window 311. The arc-shaped guide plate 32 is slidably disposed at the window 311.

[0049] The arc-shaped guide plate 32 is also provided with a radial groove 321, and the drainage pipe 13 is slidably disposed in the radial groove 321. The arc-shaped guide plate 32 is also provided with a nut part 322 inside. The synchronization component 4 includes a screw 41, and the nut part 322 and the screw 41 are threadedly driven.

[0050] By sliding the arc-shaped guide plate 32, the drain tube 13 can be guided when the outer shell 31 is wound around it, thereby avoiding the problem of the drain tube 13 entering the wrong spiral groove 121.

[0051] The screw 41 is rotatably disposed between the base plate 11 and the outer casing 31. The synchronization component 4 also includes a drive gear 42 and a driven gear 43. The drive gear 42 is fixedly connected to the winding drum 12, and the driven gear 43 is fixedly connected to the screw 41. The drive gear 42 and the driven gear 43 mesh and transmit power.

[0052] The synchronous connection between the winding drum 12 and the arc-shaped guide plate 32 can be achieved through the driving gear 42 and the driven gear 43, thereby ensuring that the lateral position of the arc-shaped guide plate 32 is automatically matched with the winding state of the drainage tube 13.

[0053] In actual use, the user first needs to fix the device to the body by straps or other means, wherein the base plate 11 and the outer shell 31 are fixed relative to the human body.

[0054] When the drainage tube 13 is accidentally pulled, the drainage tube 13 will be released under the action of the pulling force, thereby preventing the pulling force from being transmitted to the wound. When the drainage tube 13 is released, it will drive the winding drum 12 to rotate, and the winding drum 12 will drive the ratchet ring 21 to rotate. If the pulling stops at this time, due to the action of the ratchet disc 113, it cannot be reset, and the tension of the drainage tube 13 will disappear immediately without waiting for the drainage tube 13 to reset, thereby shortening the time the drainage tube 13 is pulled as much as possible.

[0055] After the external conditions stabilize, the operator can choose to manually reset. At this time, simply press the reset button 23. The push rod 231 will press against the ratchet ring 21 and push the ratchet ring 21 to slide axially. When the ratchet ring 21 leaves the ratchet disc 113, the ratchet ring 21 and the winding drum 12 will rotate and reset under the elastic force of the double-mode spring 22. The dual-mode spring 22 is essentially a torsion spring, which mainly transmits torque, but still has the ability to make elastic micro-movements in the axial direction. During the rotation and reset process of the winding drum 12, it will rewind the drainage tube 13.

[0056] While the winding drum 12 is rotating, the driven gear 43 can be driven to rotate by the driving gear 42, thereby driving the screw 41 to rotate, and thus controlling the axial sliding of the arc-shaped guide plate 32. The axial sliding of the arc-shaped guide plate 32 can guide the release and winding of the drainage tube 13, avoiding the problem of the drainage tube 13 entering the wrong spiral groove 121.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cardiothoracic surgical drainage tube fixation device with anti-traction function, characterized in that: It includes a winding assembly (1) and a one-way locking assembly (2), wherein the one-way locking assembly (2) is disposed in the winding assembly (1); The winding assembly (1) includes a base plate (11), a winding cylinder (12) and a drain pipe (13). A cylinder (111) is provided on the base plate (11), the winding cylinder (12) is rotatably mounted on the cylinder (111), and the drain pipe (13) is wound around the winding cylinder (12).

2. The cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 1, characterized in that: The outer surface of the winding cylinder (12) is provided with a spiral groove (121), and the drainage tube (13) is wound in the spiral groove (121). The winding cylinder (12) is provided with an inner through hole (122). One end of the drainage tube (13) passes through the inner through hole (122) and enters the interior of the cylinder (111), and is led out through one end of the cylinder (111) to connect with the human body surface.

3. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 2, characterized in that: The one-way locking assembly (2) includes a ratchet ring (21) and a dual-mode spring (22). The winding cylinder (12) is provided with a stepped hole (123). The end of the stepped hole (123) is provided with an axial groove (124). The ratchet ring (21) is provided with guide bosses (211) evenly distributed in a ring. The guide bosses (211) are engaged and slidably disposed in the axial groove (124). One end of the dual-mode spring (22) is fixed to the cylinder (111), and the other end of the dual-mode spring (22) is fixed to the ratchet ring (21).

4. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 3, characterized in that: One end of the cylinder (111) is provided with a stepped ring (112), and a ratchet disc (113) is provided on the stepped ring (112). The ratchet ring (21) is slidably disposed on the stepped ring (112) and is unidirectionally driven with the ratchet disc (113).

5. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 4, characterized in that: The one-way locking assembly (2) also includes a reset button (23), on which a top rod portion (231) is arranged in an array, and a through top groove (114) is evenly distributed in a ring on the base plate (11), and the top rod portion (231) is slidably disposed in the top groove (114); When the reset button (23) is pressed, it can press against and push the ratchet ring (21) to slide axially.

6. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 5, characterized in that: It also includes a winding guide assembly (3) and a synchronization assembly (4), wherein the winding guide assembly (3) is located outside the base plate (11) and the synchronization assembly (4) is located between the base plate (11) and the winding guide assembly (3).

7. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 6, characterized in that: The winding guide assembly (3) includes a housing (31) and an arc-shaped guide plate (32). The housing (31) is fixed to the base plate (11). The housing (31) has a window (311). The arc-shaped guide plate (32) is slidably disposed at the window (311).

8. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 7, characterized in that: The arc-shaped guide plate (32) is also provided with a radial groove (321), the drainage pipe (13) is slidably disposed in the radial groove (321), the arc-shaped guide plate (32) is also provided with a nut part (322) inside, the synchronization component (4) includes a screw (41), and the nut part (322) and the screw (41) are threadedly driven.

9. A cardiothoracic surgical drainage tube fixation device with anti-traction function according to claim 8, characterized in that: The screw (41) is rotatably disposed between the base plate (11) and the outer shell (31). The synchronization component (4) also includes a driving gear (42) and a driven gear (43). The driving gear (42) is fixedly connected to the winding drum (12), and the driven gear (43) is fixedly connected to the screw (41). The driving gear (42) and the driven gear (43) mesh and transmit power.

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