Closed thoracic drainage device facilitating autologous blood transfusion

Abstract

The invention relates to the field of medical devices, in particular to a closed thoracic drainage device convenient for autologous blood transfusion, which comprises a drainage tube, one side of the drainage tube is communicated with a hose, the bottom of the hose is connected with a negative pressure mechanism, the bottom of the negative pressure mechanism is communicated with a drainage mechanism, the drainage mechanism comprises a drainage bag, and the drainage bag is connected with the drainage tube. The drainage bag is sleeved with a protection box, the inner wall of the protection box is connected with a vertical plate, the surface of the vertical plate is connected with a heating block, the bottom of the drainage bag is communicated with a first connecting pipe, and the bottom of the first connecting pipe penetrates to the bottom of the protection box. The protection box protects the drainage bag, facilitates placement of the drainage bag, can prevent the drainage bag from being punctured by an external hard object, can heat blood in an inner cavity of the drainage bag, prevents the blood from being coagulated into blocks due to too low temperature, can keep the blood in a normal-temperature state, conveys the normal-temperature blood to a patient, and is beneficial to healthy treatment of the patient.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a closed chest drainage device for facilitating autologous blood transfusion. Background Art

[0002] Hemothorax refers to the accumulation of whole blood in the chest cavity. Most hemothorax cases are caused by penetrating or blunt chest trauma. Under battlefield conditions, hemothorax can be caused by knife wounds, bullet wounds, concussions, etc. If hemothorax is not treated in time, symptoms of hypovolemic shock such as shortness of breath and gradual drop in blood pressure may occur, which seriously threatens life safety.

[0003] For example, the Chinese utility model patent (application number: CN204501826U) discloses the "integrated and detachable closed chest drainage and autologous blood transfusion on the battlefield". Its specification discloses: the overall structure of the system is small, easy to carry, can be compressed for carrying and storage, and is easy to use; it integrates the autologous blood transfusion function, which can re-transfuse the drained blood into the patient's body to solve the problem of massive blood loss of the wounded under emergency conditions. Various accessories are integrated in the system, which can quickly complete the puncture and drainage process under emergency conditions, with low operation requirements and can be used for self-rescue of the wounded after a little training; however, there are still the following disadvantages.

[0004] For example, the blood cannot be heated. If the temperature in the external environment is too low, the blood will be pre-cooled and clotted, which is not conducive to blood transmission. At the same time, it will cause discomfort to the patient after entering the human body. In order to solve the above technical problems, we have designed a closed chest drainage device that is convenient for autologous blood transfusion to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to address the current problem that blood cannot be heated. If the temperature in the external environment is too low, the blood will be pre-cooled and clotted, which is not conducive to the transmission of blood and will cause discomfort to the patient after entering the human body.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a closed chest drainage device that is convenient for autologous blood transfusion to improve the above-mentioned problem.

[0007] The specific application is as follows: A closed chest drainage device for facilitating autologous blood transfusion comprises a drainage tube, one side of the drainage tube is connected to a hose, the bottom of the hose is connected to a negative pressure mechanism, the bottom of the negative pressure mechanism is connected to a drainage mechanism, the drainage mechanism comprises a drainage bag, the outer sleeve of the drainage bag is provided with a protective box, the inner wall of the protective box is connected to a vertical plate, the surface of the vertical plate is connected to a heating block, the bottom of the drainage bag is connected to a first connecting tube, the bottom of the first connecting tube passes through the bottom of the protective box, the bottom of the first connecting tube passes through an infusion tube, and the end of the infusion tube away from the first connecting tube is connected to an infusion needle.

[0008] As a preferred technical solution of the present application, a first threaded rod is connected through the rear side of the protective box, the front side of the first threaded rod passes through the inner cavity of the protective box and is fixedly connected to a push plate, and the rear side of the first threaded rod is fixedly connected to a turntable.

[0009] As a preferred technical solution of the present application, the top of the drainage bag is connected to a second connecting tube, the top of the second connecting tube passes through the top of the protection box, the front side of the protection box is connected to a first box door through a rotating shaft, a handle is fixedly connected to the surface of the first box door, the top and bottom of the protection box are both provided with a first groove, the first connecting tube and the second connecting tube both pass through the first groove, the negative pressure mechanism includes a liquid outlet pipe, the top of the protection box is connected to a limiting block through a rotating shaft, and one side of the limiting block is in contact with the first box door.

[0010] As a preferred technical solution of the present application, the bottom of the liquid outlet pipe passes through the inner cavity of the second connecting pipe, the top of the liquid outlet pipe is connected to a telescopic tube, the outside of the telescopic tube is provided with a support box, both sides of the support box are connected to support plates, the top of the support plate is connected to the protective box, and the surface of the telescopic tube is provided with a support ring.

[0011] As a preferred technical solution of the present application, the top of the telescopic tube is connected to a pressure plate, the top of the pressure plate is penetrated by a vertical pipe, the bottom of the vertical pipe penetrates the pressure plate and is connected to the telescopic tube, the top of the vertical pipe penetrates to the top of the support box, the top of the vertical pipe is connected to a short tube, the top of the short tube extends to the inner cavity of the hose, a second groove is opened on the surface of the support box, the liquid outlet pipe and the vertical pipe both penetrate the second groove, and the bottom of the inner cavity of the telescopic tube is connected to a filter plate.

[0012] As a preferred technical solution of the present application, a transverse plate is sleeved on the surface of the vertical tube, a spring is sleeved on the surface of the vertical tube, the bottom of the spring is connected to the inner wall of the support box, and the top of the spring is connected to the transverse plate.

[0013] As a preferred technical solution of the present application, a second threaded rod is connected to the bottom of the horizontal plate, a connecting plate is sleeved on the surface of the second threaded rod, one side of the connecting plate is connected to the support box, a threaded tube is sleeved on the surface of the second threaded rod, and the top of the threaded tube is in contact with the connecting plate.

[0014] As a preferred technical solution of the present application, a clamping mechanism is installed on the top of the horizontal plate, and the clamping mechanism includes a fixed block, the bottom of the fixed block is connected to the horizontal plate, a third threaded rod is connected through the surface of the fixed block, and a movable plate is threadedly sleeved on the front and rear sides of the surface of the third threaded rod, and a clamping ring is connected to one side of the movable plate.

[0015] As a preferred technical solution of the present application, the inner wall of the clamp ring is provided with anti-slip grooves, the front and rear sides of the third threaded rod are fixedly connected with knobs, and the threads on the front and rear sides of the surface of the third threaded rod have opposite rotation directions.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. In order to solve the problem that the blood cannot be heated in the prior art, if the temperature is too low in the external environment, the blood is pre-cooled and lumps, which is not conducive to the transmission of blood, and at the same time causes discomfort to the patient after entering the human body, the present application sets a drainage bag, a protective box, a vertical board, a heating block, an infusion tube and an infusion needle. The protective box protects the drainage bag, which is convenient for the placement of the drainage bag, can prevent the external hard objects from piercing the drainage bag, can heat the blood in the inner cavity of the drainage bag, prevent the blood from clotting due to too low temperature, can keep the blood at room temperature, and deliver room temperature blood to the patient, which is beneficial to the patient's health treatment; 2. By setting the pressing plate, vertical tube, short tube and horizontal plate, it is convenient to push the pressing plate downward to compress the telescopic tube, so that negative pressure is generated in the inner cavity of the telescopic tube, which is convenient for absorbing the blood accumulated in the chest cavity and recycling the blood. By setting the filter plate, the blood is filtered and impurities are blocked in the inner cavity of the telescopic tube to prevent the recycled impurities from circulating into the human body; 3. By setting the fixed block, the third threaded rod, the movable plate and the clamping ring, the two clamping rings can be brought close to each other, and the two clamping rings clamp and position the hose, so that the hose and the short tube are firmly connected to prevent the hose from being pulled off by external objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a closed chest drainage device for facilitating autologous blood transfusion provided in this application; Figure 2 A schematic diagram of the side structure of a closed chest drainage device for facilitating autologous blood transfusion provided in the present application; Figure 3A schematic rear view of the partial structure of a closed chest drainage device for facilitating autologous blood transfusion provided in the present application; Figure 4 A schematic cross-sectional view of the local structure of a closed chest drainage device for facilitating autologous blood transfusion provided in the present application; Figure 5 A schematic diagram of a first threaded rod and a push plate of a closed chest drainage device for facilitating autologous blood transfusion provided in the present application; Figure 6 Schematic diagram of the clamping mechanism of the closed chest drainage device for facilitating autologous blood transfusion provided in this application.

[0018] Indicated in the figure: 1. Drainage tube; 2. Hose; 3. Negative pressure mechanism; 30. Liquid outlet tube; 31. Telescopic tube; 32. Support box; 33. Support ring; 34. Press plate; 35. Vertical tube; 36. Short tube; 37. Threaded tube; 38. Second groove; 39. Cross plate; 310. Spring; 311. Second threaded rod; 312. Connecting plate; 313. Filter plate; 4. Drainage mechanism; 40. Drainage bag; 41. Protective box; 42. Vertical plate; 43. Heating block; 44. Infusion tube; 45. Infusion needle; 46. First threaded rod; 47. Push plate; 48. Turntable; 49. Second connecting tube; 410. First box door; 411. First groove; 412. First connecting tube; 5. Clamping mechanism; 50. Fixed block; 51. Third threaded rod; 52. Moving plate; 53. Clamping ring; 54. Knob. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] As described in the background art, the blood cannot be heated. If the temperature in the external environment is too low, the blood will be pre-cooled and clotted, which is not conducive to the transmission of blood and will cause discomfort to the patient after entering the human body.

[0021] In order to solve this technical problem, the present invention provides a closed chest drainage device that is convenient for autologous blood transfusion, which is applied in the field of medical devices.

[0022] Specifically, please refer to Figure 1-Figure 4A closed chest drainage device for facilitating autologous blood transfusion comprises a drainage tube 1, one side of the drainage tube 1 is connected to a hose 2, the bottom of the hose 2 is connected to a negative pressure mechanism 3, the bottom of the negative pressure mechanism 3 is connected to a drainage mechanism 4, the drainage mechanism 4 comprises a drainage bag 40, the outer sleeve of the drainage bag 40 is provided with a protective box 41, the inner wall of the protective box 41 is connected to a vertical plate 42, the surface of the vertical plate 42 is connected to a heating block 43, the bottom of the drainage bag 40 is connected to a first connecting tube 412, the bottom of the first connecting tube 412 passes through the bottom of the protective box 41, the bottom of the first connecting tube 412 passes through an infusion tube 44, and the end of the infusion tube 44 away from the first connecting tube 412 is connected to an infusion needle 45.

[0023] By arranging a drainage bag 40, a protection box 41, a vertical plate 42, a heating block 43, an infusion tube 44 and an infusion needle 45, the protection box 41 protects the drainage bag 40, and is convenient for placing the drainage bag 40, and can prevent the drainage bag 40 from being pierced by external hard objects. The blood in the inner cavity of the drainage bag 40 can be heated to prevent the blood from clotting due to low temperature, and the blood can be kept at room temperature, and room temperature blood can be delivered to the patient, which is beneficial to the patient's health treatment. The drainage bag 40 is designed to be detachable.

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] Example 1, please refer to Figure 1-Figure 6 A closed chest drainage device for facilitating autologous blood transfusion comprises a drainage tube 1, one side of the drainage tube 1 is connected to a hose 2, the bottom of the hose 2 is connected to a negative pressure mechanism 3, the bottom of the negative pressure mechanism 3 is connected to a drainage mechanism 4, the drainage mechanism 4 comprises a drainage bag 40, the outer sleeve of the drainage bag 40 is provided with a protective box 41, the inner wall of the protective box 41 is connected to a vertical plate 42, the surface of the vertical plate 42 is connected to a heating block 43, the bottom of the drainage bag 40 is connected to a first connecting tube 412, the bottom of the first connecting tube 412 passes through the bottom of the protective box 41, the bottom of the first connecting tube 412 passes through an infusion tube 44, and the end of the infusion tube 44 away from the first connecting tube 412 is connected to an infusion needle 45.

[0028] By arranging the drainage bag 40, the protection box 41, the vertical board 42, the heating block 43, the infusion tube 44 and the infusion needle 45, the protection box 41 protects the drainage bag 40, and is convenient for placing the drainage bag 40, and can prevent the external hard objects from piercing the drainage bag 40, and can heat the blood in the inner cavity of the drainage bag 40 to prevent the blood from clotting due to low temperature, and can keep the blood at room temperature, so as to deliver room temperature blood to the patient, which is beneficial to the patient's health treatment.

[0029] A first threaded rod 46 is connected to the rear side of the protection box 41 , a push plate 47 is fixedly connected to the front side of the first threaded rod 46 through the inner cavity of the protection box 41 , and a turntable 48 is fixedly connected to the rear side of the first threaded rod 46 .

[0030] By setting up the turntable 48, the contact area with the hand is increased, which facilitates the rotation of the first threaded rod 46. By setting up the push plate 47, the first threaded rod 46 and the turntable 48, the push plate 47 can be moved to squeeze the drainage bag 40, increase the pressure in the inner cavity of the drainage bag 40, and facilitate blood transportation.

[0031] The top of the drainage bag 40 is connected to the second connecting tube 49, the top of the second connecting tube 49 passes through the top of the protection box 41, the front side of the protection box 41 is connected to the first box door 410 through a rotating shaft, and a handle is fixedly connected to the surface of the first box door 410. The top and bottom of the protection box 41 are both provided with a first groove 411, the first connecting tube 412 and the second connecting tube 49 both pass through the first groove 411, the negative pressure mechanism 3 includes a liquid outlet pipe 30, and the top of the protection box 41 is connected to a limiting block through a rotating shaft, and one side of the limiting block is in contact with the first box door 410.

[0032] By setting the first groove 411, the installation of the first connecting tube 412 and the second connecting tube 49 is facilitated. By setting the first box door 410, the front side of the protective box 41 is sealed and protected. By setting a limit block, the first box door 410 is limited, thereby improving the stability of the first box door 410.

[0033] Example 2 further optimizes the closed chest drainage device for autologous blood transfusion provided in Example 1. Specifically, Figure 1 , Figure 4 and Figure 6 The bottom of the liquid outlet pipe 30 shown in the figure passes through the inner cavity of the second connecting pipe 49, and the top of the liquid outlet pipe 30 is connected to the telescopic tube 31. The outer part of the telescopic tube 31 is provided with a support box 32. Both sides of the support box 32 are connected to support plates. The top of the support plate is connected to the protective box 41. The surface of the telescopic tube 31 is provided with a support ring 33. The telescopic tube 31 is of detachable design.

[0034] By providing a support ring 33, the telescopic tube 31 is supported to facilitate compression and elongation of the telescopic tube 31. The telescopic tube 31 is ensured to be in an expanded state, so that negative pressure is generated in the inner cavity of the telescopic tube 31. By providing a support box 32, the placement of the telescopic tube 31 is facilitated and the telescopic tube 31 is protected.

[0035] The top of the telescopic tube 31 is connected to a pressure plate 34, the top of the pressure plate 34 is penetrated by a vertical pipe 35, the bottom of the vertical pipe 35 penetrates the pressure plate 34 and is connected to the telescopic tube 31, the top of the vertical pipe 35 penetrates to the top of the support box 32, the top of the vertical pipe 35 is connected to a short tube 36, the top of the short tube 36 extends to the inner cavity of the hose 2, a second groove 38 is opened on the surface of the support box 32, the liquid outlet pipe 30 and the vertical pipe 35 both penetrate the second groove 38, and the bottom of the inner cavity of the telescopic tube 31 is connected to a filter plate 313.

[0036] The second groove 38 is provided to facilitate the installation of the liquid outlet pipe 30 and the vertical pipe 35. The pressure plate 34, the vertical pipe 35, the short pipe 36 and the horizontal plate 39 are provided to facilitate pushing the pressure plate 34 downward to compress the telescopic tube 31, so that a negative pressure is generated in the inner cavity of the telescopic tube 31, so as to facilitate absorbing the blood accumulated in the chest cavity and recycling the blood. The filter plate 313 is provided to filter the blood and block impurities in the inner cavity of the telescopic tube 31 to prevent the recycled impurities from circulating into the human body.

[0037] A transverse plate 39 is sleeved on the surface of the vertical tube 35 . A spring 310 is sleeved on the surface of the vertical tube 35 . The bottom of the spring 310 is connected to the inner wall of the support box 32 , and the top of the spring 310 is connected to the transverse plate 39 .

[0038] By providing the spring 310 , tension is generated on the transverse plate 39 , which facilitates the return of the transverse plate 39 and facilitates the transverse plate 39 to drive the vertical pipe 35 and the pressure plate 34 to return.

[0039] A second threaded rod 311 is connected to the bottom of the cross plate 39 , a connecting plate 312 is sleeved on the surface of the second threaded rod 311 , one side of the connecting plate 312 is connected to the support box 32 , a threaded tube 37 is threadedly sleeved on the surface of the second threaded rod 311 , and the top of the threaded tube 37 is in contact with the connecting plate 312 .

[0040] By providing the second threaded rod 311 and the threaded tube 37 , the second threaded rod 311 can be moved downward, and the second threaded rod 311 drives the cross plate 39 to compress the spring 310 , thereby adjusting the pressing depth of the spring 310 and further adjusting the inner cavity pressure of the telescopic tube 31 .

[0041] A clamping mechanism 5 is installed on the top of the horizontal plate 39, and the clamping mechanism 5 includes a fixed block 50. The bottom of the fixed block 50 is connected to the horizontal plate 39, and a third threaded rod 51 is connected to the surface of the fixed block 50. A movable plate 52 is threadedly sleeved on the front and rear sides of the surface of the third threaded rod 51, and a clamping ring 53 is connected to one side of the movable plate 52.

[0042] By setting the fixing block 50, the third threaded rod 51, the movable plate 52 and the clamping ring 53, the two clamping rings 53 can be brought close to each other, and the two clamping rings 53 clamp and position the hose 2, so that the hose 2 and the short tube 36 are firmly connected, and the hose 2 is prevented from being pulled off by external objects.

[0043] The inner wall of the clamp ring 53 is provided with anti-slip grooves, and knobs 54 are fixedly connected to the front and rear sides of the third threaded rod 51, and the threads on the front and rear sides of the surface of the third threaded rod 51 have opposite rotation directions.

[0044] By providing the knob 54 , the contact area with the hand is increased, making it easier to drive the third threaded rod 51 to rotate.

[0045] The use process of the closed chest drainage device for facilitating autologous blood transfusion provided by the present invention is as follows: S1. By pressing the horizontal plate 39, the vertical tube 35 and the pressing plate 34 move downward, and the pressing plate 34 compresses the telescopic tube 31, so that negative pressure is generated in the inner cavity of the telescopic tube 31. The drainage tube 1 is inserted into the chest cavity, and the blood accumulated in the chest cavity passes through the drainage tube 1, the hose 2, the short tube 36, and the vertical tube 35 in sequence into the inner cavity of the telescopic tube 31, and then is filtered by the filter plate 313 and passes through the liquid outlet tube 30 and the second connecting tube 49 into the inner cavity of the drainage bag 40; S2. The infusion needle 45 is inserted into the user's blood vessel, and the rotating turntable 48 drives the first threaded rod 46 to rotate. The first threaded rod 46 is threadedly connected to the protection box 41, so that the first threaded rod 46 drives the push plate 47, and the push plate 47 squeezes the drainage bag 40. Due to the pressure in the inner cavity of the telescopic tube 31, the blood will enter the patient's body through the first connecting tube 412, the infusion tube 44 and the infusion needle 45; S3. Rotate the threaded tube 37 to drive the first threaded rod 46 to move downward, and the first threaded rod 46 drives the horizontal plate 39, the vertical tube 35 and the pressure plate 34 to move downward, thereby changing the pressure in the inner cavity of the telescopic tube 31. The horizontal plate 39 can also be manually pressed to drive the vertical tube 35 and the pressure plate 34 to move downward, thereby manually compressing the telescopic tube 31, which is easy to operate.

[0046] S4. The rotating knob 54 drives the third threaded rod 51 to rotate. The thread of the third threaded rod 51 drives the moving plate 52 and the clamping ring 53 to move, so as to clamp and fix the hose 2.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A closed chest drainage device for facilitating autologous blood transfusion, characterized in that: The invention comprises a drainage tube (1), one side of the drainage tube (1) is connected to a hose (2), the bottom of the hose (2) is connected to a negative pressure mechanism (3), the bottom of the negative pressure mechanism (3) is connected to a drainage mechanism (4), the drainage mechanism (4) comprises a drainage bag (40), the outer part of the drainage bag (40) is provided with a protective box (41), the inner wall of the protective box (41) is connected to a vertical plate (42), the surface of the vertical plate (42) is connected to a heating block (43), the bottom of the drainage bag (40) is connected to a first connecting tube (412), the bottom of the first connecting tube (412) passes through the bottom of the protective box (41), the bottom of the first connecting tube (412) passes through and is connected to an infusion tube (44), and the end of the infusion tube (44) away from the first connecting tube (412) is connected to an infusion needle (45).

2. A closed chest drainage device for facilitating autologous blood transfusion according to claim 1, characterized in that: A first threaded rod (46) is connected to the rear side of the protection box (41), a front side of the first threaded rod (46) passes through the inner cavity of the protection box (41) and is fixedly connected to a push plate (47), and a rotating disk (48) is fixedly connected to the rear side of the first threaded rod (46).

3. A closed chest drainage device for facilitating autologous blood transfusion according to claim 2, characterized in that: The top of the drainage bag (40) is connected to a second connecting tube (49), the top of the second connecting tube (49) passes through the top of the protection box (41), the front side of the protection box (41) is connected to a first box door (410) via a rotating shaft, the surface of the first box door (410) is fixedly connected to a handle, the top and bottom of the protection box (41) are both provided with a first groove (411), the first connecting tube (412) and the second connecting tube (49) both pass through the first groove (411), the negative pressure mechanism (3) includes a liquid outlet tube (30), the top of the protection box (41) is connected to a limiting block via a rotating shaft, and one side of the limiting block is in contact with the first box door (410).

4. A closed chest drainage device for facilitating autologous blood transfusion according to claim 3, characterized in that: The bottom of the liquid outlet pipe (30) passes through the inner cavity of the second connecting pipe (49), and the top of the liquid outlet pipe (30) is connected to a telescopic pipe (31). The outside of the telescopic pipe (31) is provided with a support box (32). Both sides of the support box (32) are connected to support plates. The top of the support plate is connected to the protective box (41), and the surface of the telescopic pipe (31) is provided with a support ring (33).

5. A closed chest drainage device for facilitating autologous blood transfusion according to claim 4, characterized in that: The top of the telescopic tube (31) is connected to a pressing plate (34), the top of the pressing plate (34) is penetrated by a vertical tube (35), the bottom of the vertical tube (35) penetrates the pressing plate (34) and is in communication with the telescopic tube (31), the top of the vertical tube (35) penetrates to the top of the support box (32), the top of the vertical tube (35) is in communication with a short tube (36), the top of the short tube (36) extends to the inner cavity of the hose (2), a second groove (38) is provided on the surface of the support box (32), the liquid outlet pipe (30) and the vertical tube (35) both penetrate the second groove (38), and the bottom of the inner cavity of the telescopic tube (31) is connected to a filter plate (313).

6. A closed chest drainage device for facilitating autologous blood transfusion according to claim 5, characterized in that: A transverse plate (39) is sleeved on the surface of the vertical tube (35), and a spring (310) is sleeved on the surface of the vertical tube (35). The bottom of the spring (310) is connected to the inner wall of the support box (32), and the top of the spring (310) is connected to the transverse plate (39).

7. A closed chest drainage device for facilitating autologous blood transfusion according to claim 6, characterized in that: The bottom of the transverse plate (39) is connected to a second threaded rod (311); a connecting plate (312) is sleeved on the surface of the second threaded rod (311); one side of the connecting plate (312) is connected to the support box (32); a threaded tube (37) is threadedly sleeved on the surface of the second threaded rod (311); the top of the threaded tube (37) is in contact with the connecting plate (312).

8. A closed chest drainage device for facilitating autologous blood transfusion according to claim 7, characterized in that: A clamping mechanism (5) is installed on the top of the transverse plate (39), and the clamping mechanism (5) comprises a fixed block (50). The bottom of the fixed block (50) is connected to the transverse plate (39), and a third threaded rod (51) is connected through the surface of the fixed block (50). A movable plate (52) is threadedly sleeved on both the front and rear sides of the surface of the third threaded rod (51), and a clamping ring (53) is connected to one side of the movable plate (52).

9. A closed chest drainage device for facilitating autologous blood transfusion according to claim 8, characterized in that: The inner wall of the clamp ring (53) is provided with anti-slip grooves, and knobs (54) are fixedly connected to the front and rear sides of the third threaded rod (51), and the threads on the front and rear sides of the surface of the third threaded rod (51) have opposite rotation directions.

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