Device for taking thrombus out of chest drainage tube

Abstract

The invention provides a device for taking out thrombus in an intrathoracic drainage tube, and relates to the field of thrombus obstruction in the intrathoracic drainage tube. The device for taking out the thrombus in the thoracic cavity drainage tube comprises an inner core shaft and an outer sleeve, and the outer sleeve is arranged outside the inner core shaft in a sleeving mode and connected with the inner core shaft in a sliding mode; the outer wall of the outer sleeve is provided with a bolt cleaning mechanism, the bolt cleaning mechanism comprises a driven lantern ring, a fixed lantern ring and a plurality of groups of bolt cleaning assemblies which are sequentially arranged in the circumferential direction of the outer sleeve, the bolt cleaning assemblies are located between the driven lantern ring and the fixed lantern ring, the outer sleeve is sleeved with the driven lantern ring and the fixed lantern ring, and the driven lantern ring is slidably connected with the outer sleeve. Thrombus in the thoracic cavity drainage tube can be rapidly and effectively removed, smoothness of the drainage tube is recovered, medical workers can accurately judge disease change of a patient, and life safety of the patient is protected; 2) no additional injury is caused to the patient in the operation process, and the safety of the patient is ensured; and (3) the operation is easy, the deployment and the use can be fast, and the workload of medical personnel is reduced.

Description

Technical Field

[0001] The invention relates to the field of thrombus obstruction in chest drainage tubes, in particular to a device for removing thrombus in chest drainage tubes. Background Art

[0002] In the clinical work of thoracic surgery, doctors generally place chest drainage tubes for patients who have undergone relevant operations in the chest cavity, which is used to drain exudate and air in the surgical area. The combination of chest drainage tubes and closed chest drainage devices can effectively re-expand the lungs after surgery and restore respiratory function, so it is crucial to keep the chest drainage tubes unobstructed. However, in clinical practice, a considerable number of patients' chest drainage tubes will be blocked due to thrombosis after surgery, making it impossible to completely drain the exudate in the surgical area, which seriously affects the patient's recovery and the medical staff's judgment of the condition.

[0003] There is no effective way or device to solve the above clinical problems. This project solves the above clinical problems by innovatively designing and inventing a thrombus removal device in a chest drainage tube. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a device for removing blood clots in a chest drainage tube, which can quickly and effectively remove blood clots in the chest drainage tube and restore the patency of the drainage tube.

[0005] The present invention provides a device for removing thrombus from a chest drainage tube, comprising an inner core shaft and an outer sleeve, wherein the outer sleeve is sleeved on the outside of the inner core shaft and is slidably connected to the inner core shaft; a thrombus clearing mechanism is provided on the outer wall of the outer sleeve, wherein the thrombus clearing mechanism comprises a driven sleeve ring, a fixed sleeve ring and a plurality of groups of thrombus clearing components, wherein each group of the thrombus clearing components is sequentially arranged along the circumference of the outer sleeve, wherein the thrombus clearing components are located between the driven sleeve ring and the fixed sleeve ring, wherein the driven sleeve ring and the fixed sleeve ring are both sleeved on the outside of the outer sleeve, and wherein the driven sleeve ring and the outer sleeve are slidably connected Connection; the bolt cleaning assembly includes a push rod and a bolt cleaning rod, one end of each of the push rods is connected to the driven collar, and the other end is rotatably connected to the bolt cleaning rods in the same group of bolt cleaning assemblies, one end of each bolt cleaning rod is rotatably connected to the fixed collar, and the other end is provided with a bolt cleaning piece; the bolt cleaning mechanism also includes a connecting assembly, the two ends of which are respectively connected to the driven collar and the inner core shaft; the outer sleeve is also provided with a first limiting groove matching the position of the driven collar, and the connecting assembly can be slidably disposed in the first limiting groove.

[0006] In a feasible embodiment of the present invention, a first fixing rib groove extending along the circumferential direction of the driven collar is provided on the outer wall of the driven collar, and a plurality of push rod grooves extending along the axial direction of the driven collar are also provided on the outer wall of the driven collar, and the push rod grooves are arranged in sequence along the circumferential direction of the driven collar, and the first fixing rib groove and the push rod groove are connected; a first fixing rib is provided in the first fixing rib groove, and each of the push rods passes through the corresponding push rod groove and is connected to the first fixing rib.

[0007] In a feasible embodiment of the present invention, a second fixing rib groove extending along the circumference of the fixing collar is provided on the outer wall of the fixing collar, and a plurality of bolt cleaning rod grooves extending along the axial direction of the fixing collar are also provided on the outer wall of the fixing collar, and the bolt cleaning rod grooves are arranged in sequence along the circumference of the fixing collar, and the second fixing rib groove and the bolt cleaning rod groove are connected; a second fixing rib is provided in the second fixing rib groove, and each of the bolt cleaning rods passes through the corresponding bolt cleaning rod groove and is rotatably connected to the second fixing rib.

[0008] In some feasible embodiments of the present invention, technical feature a), a plurality of bolt cleaning mechanisms are arranged in sequence along the axial direction of the outer sleeve on the outer wall of the outer sleeve; technical feature b), in the same group of bolt cleaning components, the angle α between the push rod and the bolt cleaning rod is 0 to 90°; technical feature c), the bolt cleaning rod includes a rotating part and a bolt cleaning part connected in sequence, one end of the push rod and the rotating part are rotatably connected, and the angle β between the rotating part and the bolt cleaning part is 120 to 150°; technical feature d), a storage groove is provided in the bolt cleaning rod in line with the extension direction of the bolt cleaning rod, and the notch direction of the storage groove is toward the push rod; technical feature f), the number of the bolt cleaning components is 10 to 20; technical feature g), the number of the bolt cleaning parts is 1 to 9.

[0009] In a feasible embodiment of the present invention, technical feature a1), in technical feature a), the number of the bolt cleaning mechanisms is 3 to 5; technical feature c1), in technical feature b), an extension portion consistent with the extension direction of the bolt cleaning portion is further provided on the outer edge of the bolt cleaning portion.

[0010] In a feasible embodiment of the present invention, the connecting assembly includes a bolt body and a bolt, the bolt body is arranged in the inner core shaft, the bolt body is provided with a groove matching the bolt, the bolt is threadedly connected to the bolt body; the bolt body is slidably connected to the first limiting groove.

[0011] In a feasible embodiment of the present invention, it also includes a propulsion sleeve and a locking sleeve, wherein the propulsion sleeve is sleeved on the outside of the outer sleeve and is slidably connected to the outer sleeve; an extension shaft is also provided at the end of the inner core shaft, wherein the extension shaft extends to the outside of the outer sleeve and part of the extension shaft is located in the inner cavity of the propulsion sleeve, and the extension shaft located in the inner cavity of the propulsion sleeve is detachably connected to the propulsion sleeve; the propulsion sleeve and the locking sleeve are both provided with mutually matching threads, and the locking sleeve and the propulsion sleeve are threadedly connected.

[0012] In a feasible embodiment of the present invention, a limiting block is further provided on the outer sleeve, and a second limiting groove is further provided on the propulsion sleeve, and the limiting block and the second limiting groove are slidably connected.

[0013] In a feasible embodiment of the present invention, the inner cavity of the propulsion sleeve includes a first diameter cavity and a second diameter cavity, the inner diameter of the first diameter cavity matches the outer diameter of the outer sleeve, and the inner diameter of the second diameter cavity matches the extension shaft; a spring is also provided in the first diameter cavity, one end of the spring abuts against the end of the outer sleeve, and the other end abuts against the front end of the inner wall of the propulsion sleeve corresponding to the second diameter cavity.

[0014] The present invention also provides a method for using a thrombus removal device in a chest drainage tube, comprising at least the following steps:

[0015] 1) The inner core shaft is pushed to move in the outer sleeve along the axial direction of the outer sleeve, the driven collar follows the inner core shaft to move along the axial direction of the outer sleeve, and the push rod follows the driven collar to move along the axial direction of the outer sleeve;

[0016] 2) The bolt cleaning rod rotates with the connection between the bolt cleaning rod and the fixed collar as the rotation point, and the angle between the bolt cleaning rod and the pushing rod changes with the movement of the pushing rod.

[0017] The present invention provides a device for removing thrombus in a chest drainage tube, which has the following beneficial effects: through the cooperation between the driven collar, the fixed collar, the pushing rod and the thrombus clearing rod: 1) the thrombus in the chest drainage tube can be quickly and effectively removed, and the patency of the drainage tube can be restored, which is beneficial for medical workers to accurately judge the changes in the patient's condition and protect the patient's life safety; 2) no additional harm is caused to the patient during the operation, ensuring the patient's safety; 3) it is easy to operate, can be quickly deployed and used, and reduces the workload of medical staff; 4) the cost is reasonable and easy to promote and apply; 5) it is suitable for chest drainage tubes of different types and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention in a folded state.

[0019] Figure 2 It is a schematic diagram of the structure of the present invention in an open state.

[0020] Figure 3 It is a structural schematic diagram of the bolt clearing mechanism in the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the angle α between the propulsion rod and the bolt clearing rod in the present invention.

[0023] Figure 6 It is a schematic structural diagram of the bolt-clearing rod in the present invention.

[0024] Figure 7 It is a structural schematic diagram of the bolt-clearing rod in the present invention.

[0025] Figure 8 It is a schematic structural diagram of the driven sleeve in the present invention.

[0026] Fig. 9 It is a schematic structural diagram of the outer sleeve, the fixed sleeve, the first limiting groove and the limiting block in the present invention.

[0027] Fig.10 It is a schematic diagram of the structure of the fixed sleeve in the present invention.

[0028] Fig.11 It is a cross-sectional schematic diagram of the advancing sleeve and the locking sleeve in the present invention.

[0029] Fig.12 It is a structural schematic diagram of the propulsion sleeve in the present invention.

[0030] Fig.13 It is a cross-sectional schematic diagram of the propulsion sleeve in the present invention.

[0031] Reference numerals

[0032] Inner shaft 1

[0033] Outer sleeve 2

[0034] The first limiting groove 21

[0035] Limit block 22

[0036] Driven collar 3

[0037] The first fixing rib is slotted 31

[0038] Push rod slot 32

[0039] The first fixing rib 33

[0040] Plug cleaning component 4

[0041] Propulsion rod 41

[0042] Bolt cleaning rod 42

[0043] Rotating part 42.1

[0044] Cleaning Department 42.2

[0045] Storage slot 42.3

[0046] Extension 42.4

[0047] Cleaning parts 42.5

[0048] Fixed ring 5

[0049] The second fixing rib is slotted 51

[0050] Cleaning rod slot 52

[0051] Second fixing rib 53

[0052] Connecting components 6

[0053] Bolt 61

[0054] Bolt 62

[0055] Extension shaft 7

[0056] Propulsion sleeve 8

[0057] First diameter cavity 81

[0058] Second diameter cavity 82

[0059] Spring 83

[0060] The second limiting groove 84

[0061] Locking sleeve 9 DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0065] The embodiment of the present invention provides a device for removing blood clots in a chest drainage tube, referring to Figure 1 and Figure 2 , including an inner core shaft 1 and an outer sleeve 2, the outer sleeve 2 is sleeved on the outside of the inner core shaft 1 and is slidably connected to the inner core shaft 1. Generally speaking, the inner diameter of the outer sleeve 2 matches the outer diameter of the inner core shaft 1, so that the inner wall of the outer sleeve 2 is tightly fitted with the outer wall of the inner core shaft 1 and the outer sleeve 2 slides along the axial direction of the inner core shaft 1. A bolt cleaning mechanism is provided on the outer wall of the outer sleeve 2, and the bolt cleaning mechanism includes a driven ring 3, a fixed ring 5 and a plurality of groups of bolt cleaning components 4, each group of the bolt cleaning components 4 is sequentially arranged along the circumference of the outer sleeve 2, and the bolt cleaning component 4 is located between the driven ring 3 and the fixed ring 5, the driven ring 3 and the fixed ring 5 are both sleeved on the outside of the outer sleeve 2, the driven ring 3 is slidably connected to the outer sleeve 2, and is generally used to Specifically, the inner diameter of the driven collar 3 and the inner diameter of the fixed collar 5 are matched with the outer diameter of the outer sleeve 2, so that the inner wall of the driven collar 3 fits tightly with the outer wall of the outer sleeve 2 and enables the driven collar 3 to slide axially along the outer sleeve 2. As an illustration, when the thrombus removal device in the chest drainage tube provided by the present invention is in use, the outer sleeve 2 needs to enter the chest drainage tube. Therefore, in order to distinguish the two ends of the outer sleeve 2 in the present invention, the two ends of the outer sleeve 2 are defined according to the distance from the chest cavity, and are respectively defined as: the proximal chest end of the outer sleeve 2 and the distal chest end of the outer sleeve 2. Then, the sequential relationship between the fixed collar 5, the thrombus clearing assembly 4 and the driven collar 3 is: from the proximal chest end of the outer sleeve 2 to the distal chest end of the outer sleeve 2. Continue reading Figure 3 and Figure 5The bolt-clearing assembly 4 includes a push rod 41 and a bolt-clearing rod 42. One end of each of the push rods 41 is connected to the driven collar 3, and the other end is rotatably connected to the bolt-clearing rod 42 in the same group of bolt-clearing assemblies 4. One end of each bolt-clearing rod 42 is rotatably connected to the fixed collar 5, and the other end is provided with a bolt-clearing member 42.5. For illustration, the function of the push rod 41 is to push the bolt-clearing rod 42 in the same group of bolt-clearing assemblies 4 to rotate, and the function of the bolt-clearing rod 42 is to increase the contact area with the thrombus. Generally speaking, the connection position between the push rod 41 and the bolt-clearing rod 42 is close to the connection between the bolt-clearing rod 42 and the fixed collar 5, which can effectively shorten the force arm and stabilize the thrust transmission of the push rod 41. In addition, the force transmission mode between the push rod 41 and the bolt-clearing rod 42 is similar to the bone axis of an umbrella or a parasol. Continue reading Figure 4 and Fig. 9 The bolt clearing mechanism also includes a connecting component 6, the two ends of which are respectively connected to the driven collar 3 and the inner core shaft 1. The outer sleeve 2 is also provided with a first limiting groove 21 that matches the position of the driven collar 3. The connecting component 6 can be slidably arranged in the first limiting groove 21. Generally speaking, the outer wall of the connecting component 6 fits with the inner wall of the first limiting groove 21, so that the outer wall of the connecting component 6 fits tightly with the inner wall of the first limiting groove 21 and the connecting component 6 slides along the axial direction of the inner core shaft 1. The axial extension length of the first limiting groove 21 along the outer sleeve 2 is equivalent to the moving distance of the connecting component 6. When the thrombus removal device in the chest drainage tube provided by the present invention is used, the device is first inserted into the chest drainage tube, and the thrombus clearing component 4 is located at the position where the thrombus is to be removed; then, the inner core shaft 1 is pushed toward the chest end of the outer sleeve 2, and the movement of the inner core shaft 1 will cause the driven ring 3 connected to the inner core shaft 1 to move synchronously, and the driven ring 3 will gradually move toward the chest end of the outer sleeve 2, and the movement of the driven ring 3 will cause all the pushing rods connected to the driven ring 3 to move toward the chest end of the outer sleeve 2, and the movement of the pushing rod will cause the thrombus clearing rod 42 to rotate with the connection between the thrombus clearing rod 42 and the fixed ring 5 as the rotation point. In the initial state, that is, when the outer sleeve 2 has not reached the position where the thrombus is to be removed, a small angle between the pushing rod and the thrombus clearing rod 42 is maintained. When the pushing rod reaches the position where the thrombus is to be removed, the inner core shaft 1 is pushed to cause the angle α between the pushing rod and the thrombus clearing rod 42 to gradually increase until the thrombus clearing rod 42 is in full contact with the thrombus. The present invention 1) can quickly and effectively remove blood clots in a chest drainage tube and restore the patency of the drainage tube, which is beneficial for medical workers to accurately judge changes in the patient's condition and protect the patient's life safety; 2) does not cause additional harm to the patient during the operation, ensuring the patient's safety; 3) is easy to operate, can be quickly deployed and used, and reduces the workload of medical staff; 4) has a reasonable cost and is easy to promote and apply; 5) is suitable for chest drainage tubes of different types and sizes.

[0066] In some specific embodiments, see Figure 1 and Figure 2 The outer wall of the outer sleeve 2 is provided with a plurality of plug-clearing mechanisms arranged in sequence along the axial direction of the outer sleeve 2. Generally, a certain spacing is maintained between these plug-clearing mechanisms, and the number may be 3 to 5, preferably 3. In some specific embodiments, refer to Figure 5 In the same group of the bolt cleaning assembly 4, the angle α between the push rod 41 and the bolt cleaning rod 42 is 0-90°. Figure 6 The bolt-clearing rod 42 includes a rotating portion 42.1 and a bolt-clearing portion 42.2 connected in sequence. Generally speaking, the rotating portion 42.1 and the bolt-clearing portion 42.2 are integrally formed. One end of the push rod 41 is rotatably connected to the rotating portion 42.1. The angle β between the rotating portion 42.1 and the bolt-clearing portion 42.2 is 120-150°, preferably 150°. This embodiment also includes an improved embodiment, see Figure 7 The outer edge of the thrombus clearing portion 42.2 is further provided with an extension portion 42.4 in the same direction as the thrombus clearing portion 42.2, and the extension portion 42.4 can further expand the contact area between the thrombus clearing portion 42.2 and the thrombus. Figure 7 The bolt cleaning rod 42 is provided with a receiving slot 42.3 in the same direction as the extending direction of the bolt cleaning rod 42, and the slot of the receiving slot 42.3 faces the push rod 41. Generally speaking, the inner wall of the receiving slot 42.3 matches the outer wall of the push rod 41 so that when the angle α between the push rod 41 and the bolt cleaning rod 42 is less than a certain angle, the push rod 41 can be located in the receiving slot 42.3 to prevent the rotation of the bolt cleaning rod 42 from being interfered. In some specific embodiments, refer to Figure 1 and Figure 2 The number of the bolt cleaning components 4 is 10 to 20, preferably 15. In some specific embodiments, the number of the bolt cleaning members 42.5 is 1 to 9, preferably 5.

[0067] In the thrombus removal device for chest drainage tube provided in the embodiment of the present invention, refer to Figure 3 and Figure 8The outer wall of the driven collar 3 is provided with a first fixing rib groove 31 extending along the circumference of the driven collar 3, and the outer wall of the driven collar 3 is also provided with a plurality of push rod grooves 32 extending along the axial direction of the driven collar 3, and each of the push rod grooves 32 is arranged in sequence along the circumference of the driven collar 3, and the first fixing rib groove 31 and the push rod groove 32 are connected; the first fixing rib groove 31 is provided with a first fixing rib 33, and each of the push rods 41 passes through the corresponding push rod groove 32 and is connected to the first fixing rib 33. As an explanation, the push rod groove 32 can prevent the push rod 41 from deviating during the movement process, and can ensure that the push rod 41 moves along the axial direction of the outer sleeve 2. In a specific embodiment, a through hole is provided at the end of each of the push rods 41, and the radius of the through hole matches the radius of the first fixing rib 33, and the first fixing rib 33 can be penetrated in these through holes. When the driven collar 3 moves, the first fixing rib 33 will also move synchronously with it. The movement of the first fixing rib 33 will drive all the pushing rods 41 to move toward the proximal thoracic end of the outer sleeve 2. The movement of the pushing rod will cause all the embolism clearing rods 42 to rotate with the connection between the embolism clearing rod 42 and the fixing collar 5 as the rotation point, thereby increasing the angle α between the embolism clearing rod 42 and the pushing rod 41, and the whole presents an umbrella shape, thereby increasing the contact area with the thrombus.

[0068] In the thrombus removal device for chest drainage tube provided in the embodiment of the present invention, refer to Figure 3 , Fig. 9 and Fig.10 The outer wall of the fixing collar 5 is provided with a second fixing rib groove 51 extending along the circumference of the fixing collar 5, and the outer wall of the fixing collar 5 is also provided with a plurality of bolt cleaning rod grooves 52 extending along the axial direction of the fixing collar 5, each of the bolt cleaning rod grooves 52 is arranged in sequence along the circumference of the fixing collar 5, and the second fixing rib groove 51 is connected with the bolt cleaning rod groove 52; the second fixing rib groove 51 is provided with a second fixing rib 53, and each of the bolt cleaning rods 42 passes through the corresponding bolt cleaning rod groove and is rotatably connected to the second fixing rib 53. In a specific embodiment, a through hole is provided at the end of each of the bolt cleaning rods 42, and the radius of the through hole matches the radius of the second fixing rib 53, and the second fixing rib 53 can be inserted into these through holes, and the through hole of each of the bolt cleaning rods 42 can be rotatably connected to the second fixing rib 53, that is, the bolt cleaning rod 42 can rotate around the radial direction of the second fixing rib 53.

[0069] In the thrombus removal device for chest drainage tube provided in the embodiment of the present invention, refer to Figure 4The connecting assembly 6 includes a bolt body 61 and a bolt 62. The bolt body 61 is arranged in the inner core shaft 1. A groove matching the bolt 62 is arranged in the bolt body 61. The bolt 62 is threadedly connected to the bolt body 61. The bolt body 61 is slidably connected to the first limiting groove 21. In a specific embodiment, two symmetrical first limiting grooves 21 are provided. The two first limiting grooves 21 are both arranged on the same diameter of the inner core shaft 1. At the same time, the bolt 62 penetrates the inner core shaft 1 along the diameter of the inner core shaft 1. Both ends of the bolt 62 pass through the inner core shaft 1 and correspond to the positions of the two first limiting grooves 21. This symmetrical design is more stable on the one hand, and the force distribution in all directions is uniform. On the other hand, it can reduce stress concentration points, thereby improving durability.

[0070] In the thrombus removal device for chest drainage tube provided in the embodiment of the present invention, refer to Figure 1 , Figure 2 and 11 , further comprising a propulsion sleeve 8 and a locking sleeve 9, wherein the propulsion sleeve 8 is sleeved on the outside of the outer sleeve 2 and is slidably connected to the outer sleeve 2. Generally speaking, the inner diameter of the propulsion sleeve 8 matches the outer diameter of the outer sleeve 2 so that the inner wall of the propulsion sleeve 8 can slide closely against the outer wall of the outer sleeve 2; an extension shaft 7 is also provided at the end of the inner core shaft 1, wherein the extension shaft 7 extends to the outside of the outer sleeve 2 and part of the extension shaft 7 is located in the inner cavity of the propulsion sleeve 8, and the extension shaft 7 located in the inner cavity of the propulsion sleeve 8 is detachably connected to the propulsion sleeve 8; the propulsion sleeve 8 and The locking sleeve 9 is provided with mutually matching threads, and the locking sleeve 9 is threadedly connected with the pushing sleeve 8. When the pushing sleeve 8 is pushed to move toward the near-thoracic end of the outer sleeve 2, the inner core shaft 1 will also move toward the near-thoracic end of the outer sleeve 2 under the push of the extension shaft 7, so that the pushing rod 41 can move toward the near-thoracic end of the outer sleeve 2 to push the clearing rod 42 to rotate. When the clearing rod 42 rotates to a suitable angle, the locking sleeve 9 is rotated to connect the locking sleeve 9 with the locking part, so that the clearing rod 42 can be maintained at this angle and is not easily changed after being contacted by the thrombus. In a specific embodiment, it also includes a pin, which passes through the outer sleeve 2 and the extension shaft 7 partially located in the outer sleeve 2, so that the outer sleeve 2 and the extension shaft 7 partially located in the outer sleeve 2 are connected.

[0071] In the thrombus removal device for chest drainage tube provided in the embodiment of the present invention, refer to Fig. 9 , Fig.12 and Fig.13 A limit block 22 is also provided on the outer sleeve 2, and a second limit groove 84 is also provided on the propulsion sleeve 8. The limit block 22 and the second limit groove 84 are slidably connected. Generally speaking, the outer wall of the limit block 22 and the inner wall of the second limit groove 84 match each other, so that the inner wall of the second limit groove 84 can slide tightly against the outer wall of the limit block 22.

[0072] In the thrombus removal device for chest drainage tube provided in the embodiment of the present invention, refer to Fig.11 , 12 and Fig.13 The inner cavity of the propulsion sleeve 8 includes a first diameter cavity 81 and a second diameter cavity 82, the inner diameter of the first diameter cavity 81 matches the outer diameter of the outer sleeve 2, and the inner diameter of the second diameter cavity 82 matches the extension shaft 7; a spring 83 is also provided in the first diameter cavity 81, one end of the spring 83 abuts against the end of the outer sleeve 2, and the other end abuts against the front end of the inner wall of the propulsion sleeve 8 corresponding to the second diameter cavity 82. As an illustration, when the pushing sleeve 8 is pushed toward the proximal thoracic end of the outer tube 2, the spring 83 will be squeezed by the front end of the inner wall of the pushing sleeve 8 corresponding to the second diameter cavity 82, and then the locking sleeve 9 will lock the pushing sleeve 8, so that the elastic force of the spring 83 will be temporarily accumulated. After the thrombus is removed, the connection between the locking sleeve 9 and the pushing sleeve 8 is released. Under the action of the accumulated elastic force of the spring 83, the pushing sleeve 8 will be pushed toward the distal thoracic end of the outer tube 2, so that the extension shaft 7 and the inner core shaft 1 will move synchronously toward the distal thoracic end of the outer tube 2, and the pushing rod will also move synchronously toward the distal thoracic end of the outer tube 2, so that the angle α between the thrombus clearing rod 42 and the pushing rod will gradually decrease.

[0073] The embodiment of the present invention further provides a method for using a device for removing thrombus in a chest drainage tube, comprising at least the following steps:

[0074] 1) pushing the inner core shaft 1 in the outer sleeve 2 to move along the axial direction of the outer sleeve 2, the driven collar 3 follows the inner core shaft 1 to move along the axial direction of the outer sleeve 2, and the push rod 41 follows the driven collar 3 to move along the axial direction of the outer sleeve 2; further, the inner core shaft 1 can be moved by pushing the push sleeve 8;

[0075] 2) The bolt cleaning rod 42 rotates with the connection between the bolt cleaning rod 42 and the fixed collar 5 as the rotation point, and the angle α between the bolt cleaning rod 42 and the pushing rod 41 changes with the movement of the pushing rod 41; further, when it is desired to lock the angle α between the bolt cleaning rod 42 and the pushing rod 41, the pushing sleeve 8 can be locked by the locking sleeve 9, so that the angle α between the bolt cleaning rod 42 and the pushing rod 41 is maintained at the current angle.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A device for removing thrombus from a chest drainage tube, characterized in that: It comprises an inner core shaft (1) and an outer sleeve (2), wherein the outer sleeve (2) is sleeved on the outside of the inner core shaft (1) and is slidably connected to the inner core shaft (1); A bolt-clearing mechanism is provided on the outer wall of the outer sleeve (2), and the bolt-clearing mechanism comprises a driven sleeve (3), a fixed sleeve (5) and a plurality of groups of bolt-clearing assemblies (4), each group of the bolt-clearing assemblies (4) is arranged in sequence along the circumference of the outer sleeve (2), the bolt-clearing assemblies (4) are located between the driven sleeve (3) and the fixed sleeve (5), the driven sleeve (3) and the fixed sleeve (5) are both sleeved on the outside of the outer sleeve (2), and the driven sleeve (3) is slidably connected to the outer sleeve (2); The bolt cleaning assembly (4) comprises a push rod (41) and a bolt cleaning rod (42), one end of each push rod (41) is connected to the driven collar (3), and the other end is rotatably connected to the bolt cleaning rod (42) in the same bolt cleaning assembly (4), one end of each bolt cleaning rod (42) is rotatably connected to the fixed collar (5), and the other end is provided with a bolt cleaning member (42.5); The bolt clearing mechanism further comprises a connecting assembly (6), the two ends of which are respectively connected to the driven collar (3) and the inner core shaft (1); the outer sleeve (2) is also provided with a first limiting groove (21) matching the position of the driven collar (3), and the connecting assembly (6) can be slidably arranged in the first limiting groove (21).

2. The device for removing thrombus in chest drainage tube according to claim 1, characterized in that: The outer wall of the driven collar (3) is provided with a first fixing rib groove (31) extending along the circumferential direction of the driven collar (3), and the outer wall of the driven collar (3) is also provided with a plurality of push rod grooves (32) extending along the axial direction of the driven collar (3), and the push rod grooves (32) are arranged in sequence along the circumferential direction of the driven collar (3), and the first fixing rib groove (31) and the push rod groove (32) are connected; A first fixing rib (33) is provided in the first fixing rib slot (31), and each of the propulsion rods (41) passes through the corresponding propulsion rod slot (32) and is connected to the first fixing rib (33).

3. The device for removing thrombus in chest drainage tube according to claim 1, characterized in that: The outer wall of the fixing collar (5) is provided with a second fixing rib groove (51) extending along the circumferential direction of the fixing collar (5), and the outer wall of the fixing collar (5) is also provided with a plurality of bolt cleaning rod grooves (52) extending along the axial direction of the fixing collar (5), and the bolt cleaning rod grooves (52) are arranged in sequence along the circumferential direction of the fixing collar (5), and the second fixing rib groove (51) and the bolt cleaning rod groove (52) are connected; A second fixing rib (53) is provided in the second fixing rib slot (51), and each of the bolt cleaning rods (42) passes through the corresponding bolt cleaning rod slot (52) and is rotatably connected to the second fixing rib (53).

4. The device for removing thrombus in chest drainage tube according to claim 1, characterized in that: Include at least one of the following technical features: Technical feature a), a plurality of plug clearing mechanisms are arranged in sequence along the axial direction of the outer sleeve (2) on the outer wall of the outer sleeve (2); Technical feature b), in the same group of the bolt cleaning assembly (4), the angle α between the push rod (41) and the bolt cleaning rod (42) is 0 to 90°; Technical feature c), the bolt-clearing rod (42) comprises a rotating part (42.1) and a bolt-clearing part (42.2) connected in sequence, one end of the propulsion rod (41) is rotatably connected to the rotating part (42.1), and the angle β between the rotating part (42.1) and the bolt-clearing part (42.2) is 120-150°; Technical feature d), the bolt cleaning rod (42) is provided with a receiving slot (42.3) in the same direction as the extending direction of the bolt cleaning rod (42), and the slot direction of the receiving slot (42.3) is toward the pushing rod (41); Technical feature f), the number of the plug cleaning components (4) is 10 to 20; Technical feature g), the number of the bolt cleaning members (42.5) is 1 to 9.

5. The device for removing thrombus in chest drainage tube according to claim 4, characterized in that: Include at least one of the following technical features: Technical feature a1), in technical feature a), the number of the plug clearing mechanisms is 3 to 5; Technical feature c1), in technical feature b), an extension portion (42.4) which is consistent with the extension direction of the bolt cleaning portion (42.2) is further provided on the outer edge of the bolt cleaning portion (42.2).

6. The device for removing thrombus in chest drainage tube according to claim 1, characterized in that: The connecting assembly (6) comprises a bolt body (61) and a bolt (62); the bolt body (61) is arranged in the inner core shaft; a groove matching the bolt (62) is arranged in the bolt body (61); the bolt (62) is threadedly connected to the bolt body (61); and the bolt body (61) is slidably connected to the first limiting groove (21).

7. The device for removing thrombus in chest drainage tube according to claim 1, characterized in that: It also includes a propulsion sleeve (8) and a locking sleeve (9), wherein the propulsion sleeve (8) is sleeved on the outside of the outer sleeve (2) and is slidably connected to the outer sleeve (2); an extension shaft (7) is also provided at the end of the inner core shaft (1), wherein the extension shaft (7) extends to the outside of the outer sleeve (2) and a part of the extension shaft (7) is located in the inner cavity of the propulsion sleeve (8), and the extension shaft (7) located in the inner cavity of the propulsion sleeve (8) is detachably connected to the propulsion sleeve (8); the propulsion sleeve (8) and the locking sleeve (9) are both provided with mutually matching threads, and the locking sleeve (9) and the propulsion sleeve (8) are threadedly connected.

8. The device for removing thrombus in chest drainage tube according to claim 7, characterized in that: The outer sleeve (2) is also provided with a limit block (22), and the propulsion sleeve (8) is also provided with a second limit groove (84), and the limit block (22) and the second limit groove (84) are slidably connected.

9. The device for removing thrombus in chest drainage tube according to claim 7 or 8, characterized in that: The inner cavity of the propulsion sleeve (8) comprises a first diameter cavity (81) and a second diameter cavity (82), wherein the inner diameter of the first diameter cavity (81) matches the outer diameter of the outer sleeve (2), and the inner diameter of the second diameter cavity (82) matches the extension shaft (7); a spring (83) is also provided in the first diameter cavity (81), wherein one end of the spring (83) abuts against the end of the outer sleeve (2), and the other end abuts against the front end of the inner wall of the propulsion sleeve (8) corresponding to the second diameter cavity (82).

10. A method for using the device for removing thrombus in a chest drainage tube according to any one of claims 1 to 9, comprising at least the following steps: 1) pushing the inner core shaft (1) in the outer sleeve (2) to move along the axial direction of the outer sleeve (2), the driven collar (3) follows the inner core shaft (1) to move along the axial direction of the outer sleeve (2), and the push rod (41) follows the driven collar (3) to move along the axial direction of the outer sleeve (2); 2) The bolt cleaning rod (42) rotates with the connection between the bolt cleaning rod (42) and the fixing collar (5) as the rotation point, and the angle between the bolt cleaning rod (42) and the pushing rod (41) changes with the movement of the pushing rod (41).

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