Thoracocentesis air extractor for treating pneumothorax

Abstract

The invention provides a thoracocentesis air extracting device for treating pneumothorax, which comprises a handle, a mounting shell arranged on the handle, an air extracting barrel detachably arranged on the mounting shell, a puncture needle arranged at one end of the air extracting barrel, a gas collecting balloon arranged at the other end of the air extracting barrel, and a piston air extracting mechanism arranged in the air extracting barrel, the piston air exhaust mechanism comprises a piston rod which is arranged in the air exhaust cylinder in a lifting mode. A grip is arranged on the mounting shell in a sliding mode, a lifting frame connected through a driving unit is arranged on the grip, sliding of the grip is converted into driving of the lifting frame to ascend and descend through the driving unit, and the lifting frame is detachably connected with the piston rod through a connecting assembly. When the device is used, the air suction cylinder can be detached, the air suction cylinder, the puncture needle and the air collecting balloon are discarded, the remaining parts can be repeatedly used, the whole device does not need to be discarded after each treatment, and therefore the treatment cost is effectively saved.

Description

Technical Field

[0001] The invention specifically relates to a thoracentesis and air extraction device for treating pneumothorax. Background Art

[0002] Pneumothorax refers to the phenomenon of gas accumulation in the chest cavity due to the failure to be discharged in time. It is called pneumothorax. The general cause of pneumothorax is bacterial infection of the lungs or rupture of certain tissues in the lungs. Generally, there are more male patients and the incidence rate is relatively high. If not treated in time, it may cause death.

[0003] Pneumothorax puncture and aspiration is an effective method for treating pneumothorax, which can quickly relieve the patient's chest tightness, shortness of breath and other symptoms and promote lung re-expansion. When performing pneumothorax puncture and aspiration, a dedicated chest puncture and aspiration device is required for assistance.

[0004] For example, the Chinese invention patent with publication number CN106730077B provides a device for treating pneumothorax, which can judge the pneumothorax exhaust status through a signal indicator. If the signal indicator is not raised, the pneumothorax is completely exhausted. Therefore, when people find that the signal indicator is not raised, they can go to the hospital to remove the device for treating pneumothorax. Therefore, the present invention does not require hospitalization for pneumothorax treatment and activities are not restricted.

[0005] However, most of the existing thoracentesis and extraction devices for treating pneumothorax are of an integrated type, and the entire device needs to be discarded after use, which increases the cost of treatment and reduces the practicality of the traditional thoracentesis and extraction devices for treating pneumothorax. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention proposes a thoracic puncture and extraction device for treating pneumothorax, so as to solve the technical problem raised in the above background technology that most of the existing thoracic puncture and extraction devices for treating pneumothorax are integrated and the entire device needs to be discarded after use, thereby increasing the treatment cost.

[0007] To achieve the above object, the present invention provides the following technical solution: a thoracentesis and air extraction device for treating pneumothorax, comprising:

[0008] A handle, wherein a mounting shell is disposed on the handle;

[0009] A vacuum pump is detachably arranged on the mounting shell, one end of the vacuum pump is provided with a puncture needle, and the other end of the vacuum pump is provided with a collecting balloon;

[0010] The piston pumping mechanism is arranged in the pumping cylinder, and includes a piston rod which is arranged in the pumping cylinder and can be raised and lowered. The piston pumping mechanism converts the raising and lowering of the piston rod into driving the gas in the puncture needle to flow unidirectionally into the collecting balloon;

[0011] A handle is disposed on the mounting shell in a lateral sliding manner, and a lifting frame connected to the handle via a driving unit is disposed on the handle, and the driving unit converts the sliding of the handle into driving the lifting frame to move upward and downward; and

[0012] A connecting assembly is arranged on the lifting frame to selectively fix or release the lifting frame from the piston rod.

[0013] In a preferred embodiment, two groups of snap-in frames are provided on the mounting shell, one end of the vacuum cylinder is detachably connected to the puncture needle through an air inlet chamber, and the other end is connected to the collecting balloon through an exhaust chamber, and the air inlet chamber and the exhaust chamber are respectively snap-connected in the two groups of snap-in frames.

[0014] In a preferred embodiment, the air inlet end of the collecting balloon is sleeved on the exhaust chamber and fixedly connected thereto via an elastic ring.

[0015] In a preferred embodiment, the piston pumping mechanism includes:

[0016] One-way valves, four groups of which are arranged on the air pump, wherein two groups of the one-way valves are connected to the air inlet chamber, and the other two groups of the one-way valves are connected to the air exhaust chamber, so as to form two groups of one-way passages for gas to flow from the puncture needle to the collecting balloon; and

[0017] The piston plate is arranged on the piston rod and can slide between the two groups of one-way valves on one side of the vacuum cylinder. The penetration position of the piston rod on the vacuum cylinder is sealed.

[0018] In a preferred embodiment, the driving unit comprises:

[0019] A ratchet wheel, rotatable in one direction, is disposed in the mounting shell;

[0020] A driving rod, one end of which is eccentrically hinged to the ratchet wheel and the other end of which is hinged to the lifting frame; and

[0021] The one-way driving mechanism is arranged on the handle and connected with the ratchet wheel so as to convert the reciprocating sliding motion of the handle into driving the ratchet wheel to rotate in one direction.

[0022] In a preferred embodiment, a first elastic member is provided between the handle and the grip.

[0023] In a preferred embodiment, the one-way driving mechanism comprises:

[0024] A lifting frame is liftably arranged on the handle, and a second elastic member is arranged between the lifting frame and the handle;

[0025] Two groups of ratchet bars are provided and arranged on the upper and lower sides of the inner wall of the lifting frame, the two groups of ratchet bars are in opposite directions, and one group of ratchet bars is engaged with the ratchet wheel; and

[0026] The guide assembly is arranged on the mounting shell and connected to the lifting frame, so as to drive the lifting frame to move up and down when the handle slides back and forth so that the two groups of ratchet bars are alternately meshed with the ratchet bars.

[0027] In a preferred embodiment, the guide assembly includes:

[0028] There are two groups of guide rails, and the two groups of guide rails are connected end to end in a ring shape, and the head end of the guide rail is stepped with the tail end of the other group of guide rails, and the head ends of the two groups of guide rails are provided with inclined surfaces;

[0029] A mounting frame is arranged on the lifting frame; and

[0030] The guide column is slidably arranged along its axis and penetrates one side of the mounting frame, and a third elastic member is arranged between the guide column and the other side of the mounting frame. The end of the guide column is slidably arranged in the guide track and abuts against the inner wall.

[0031] In a preferred embodiment, a hinged pawl is disposed in the mounting shell, the pawl is clamped on the ratchet, and a torsion spring is disposed at a hinge point between the pawl and the mounting shell.

[0032] In a preferred embodiment, the connection assembly includes:

[0033] A clamping block, wherein a clamping hole is provided on the lifting frame, and the clamping block is slidably clamped in the clamping hole, and a clamping groove is provided at the end of the piston rod, and the clamping block is clamped in the clamping groove, and the end of the piston rod is a wedge-shaped surface;

[0034] a fourth elastic member, disposed between the clamping block and the clamping hole; and

[0035] The pull ring is arranged on the clamping block and extends out of the mounting shell.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. When the device is in use, the puncture needle is inserted into the chest cavity and the handle is repeatedly gripped to slide on the mounting shell. During the movement of the handle, the driving unit converts the sliding of the handle into driving the lifting frame to rise and fall. During the lifting process, the lifting frame drives the piston rod to rise and fall in the vacuum cylinder, and then the gas in the chest cavity is extracted into the collecting balloon through the piston pumping mechanism to avoid gas leakage and affect the health of medical staff, and then the gas in the patient's chest cavity is quickly extracted to treat pneumothorax. After use, the lifting frame and the piston rod can be released through the connecting assembly, and then the vacuum cylinder can be disassembled. The vacuum cylinder, puncture needle and collecting balloon are disposable and can be discarded after use, and the remaining parts can be used repeatedly. There is no need to discard the entire device after each treatment, which effectively saves the cost of treatment.

[0038] 2. In the process of holding the handle, the lifting frame is driven to slide along. In the process of sliding, the lifting frame drives the guide column to move alternately in the two sets of guide rails. When the guide column contacts the inclined surface of the guide rail, the guide column enters the tail end of the other set of guide rails from the head end of one set of guide rails, and the second elastic member and the third elastic member are used to make the guide column only move unidirectionally in the ring surrounded by the two sets of guide rails through the stepped connection of the two sets of guide rails, thereby controlling the lifting frame to lift and lower back and forth while sliding back and forth, so that the two sets of ratchet bars are alternately engaged with the ratchet wheel, thereby controlling the ratchet wheel to continuously rotate unidirectionally to drive the lifting frame to slide back and forth through the driving rod. When the diameter of the ratchet wheel is small, a single holding of the handle can make the piston plate move multiple times in the piston, so that the gas in the chest cavity can be discharged quickly and evenly, effectively improving the efficiency of pneumothorax treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0040] Figure 1 A schematic diagram of the three-dimensional structure of a thoracentesis and air extraction device for treating pneumothorax provided by the present invention;

[0041] Figure 2 A cross-sectional view of a thoracentesis and aspiration device for treating pneumothorax according to the present invention;

[0042] Figure 3 This is a schematic diagram of the internal structure of a shell in a thoracentesis and suction device for treating pneumothorax according to the present invention;

[0043] Figure 4 It is a structural schematic diagram of a piston plate in a thoracentesis and suction device for treating pneumothorax of the present invention;

[0044] Figure 5It is a schematic structural diagram of a lifting frame in a thoracentesis and suction device for treating pneumothorax according to the present invention;

[0045] Figure 6 This is a schematic diagram of the structure of a guide rail in a thoracentesis and aspiration device for treating pneumothorax according to the present invention;

[0046] Figure 7 It is a structural schematic diagram of a one-way driving mechanism in a thoracentesis and air extraction device for treating pneumothorax according to the present invention;

[0047] Figure 8 for Figure 7 A magnified schematic diagram of area a.

[0048] Reference numerals:

[0049] 101, handle; 102, mounting shell; 103, snap-on frame; 104, grip; 105, first elastic member;

[0050] 201, vacuum pump; 202, air inlet chamber; 203, exhaust chamber; 204, one-way valve; 205, collecting balloon; 206, elastic ring; 207, puncture needle;

[0051] 301, piston plate; 302, piston rod; 303, slot;

[0052] 401, lifting frame; 402, clamping hole; 403, clamping block; 404, pull ring; 405, fourth elastic member;

[0053] 501, ratchet; 502, pawl; 503, driving rod;

[0054] 601, lifting frame; 602, ratchet bar; 603, second elastic member; 604, mounting frame; 605, guide column; 606, third elastic member;

[0055] 701. Guide track; 702. Inclined surface. DETAILED DESCRIPTION

[0056] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technicians in this field can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0057] Example:

[0058] like Figures 1 to 4As shown, the present invention provides a thoracentesis and suction device for treating pneumothorax, including a handle 101, a mounting shell 102 is provided on the handle 101, a suction cylinder 201 is detachably provided on the mounting shell 102, a puncture needle 207 is provided at one end of the suction cylinder 201, a collecting balloon 205 is provided at the other end, two groups of clamping frames 103 are provided on the mounting shell 102, one end of the suction cylinder 201 is detachably connected to the puncture needle 207 through the air inlet chamber 202, and the other end is connected to the collecting balloon 205 through the exhaust chamber 203, and the air inlet chamber 202 and the exhaust chamber 203 are respectively clamped in the two groups of clamping frames 103. The air inlet end of the collecting balloon 205 is sleeved on the exhaust chamber 203 and fixedly connected to it through an elastic ring 206.

[0059] When in use, the vacuum pump 201 is installed through the clamping frame 103. The clamping frame 103 can be made of a material with a certain toughness to fix the air inlet chamber 202 and the exhaust chamber 203. The air inlet chamber 202 and the exhaust chamber 203 are removed from the clamping frame 103 by force to disassemble the puncture needle 207, the vacuum pump 201 and the collecting balloon 205. During the vacuuming process, the gas can enter the collecting balloon 205 after passing through the vacuum pump 201, and the exhausted gas is collected by the collecting balloon 205. The collecting balloon 205 is fixed by the elastic ring 206, so that the collecting balloon 205 can be easily replaced.

[0060] like Figures 2 to 4 As shown, in the present embodiment, a piston pumping mechanism is provided in the vacuum cylinder 201, and the piston pumping mechanism includes a piston rod 302 which is arranged in the vacuum cylinder 201 and can be raised and lowered. The lifting and lowering of the piston rod 302 is converted into driving the gas in the puncture needle 207 to flow unidirectionally to the collecting balloon 205 through the piston pumping mechanism. The piston pumping mechanism includes four groups of one-way valves 204 arranged on the vacuum cylinder 201, two groups of one-way valves 204 are connected to the air inlet chamber 202, and the other two groups of one-way valves 204 are connected to the exhaust chamber 203, so as to form two groups of one-way passages for gas to flow from the puncture needle 207 to the collecting balloon 205. A piston plate 301 is provided on the piston rod 302, and the piston plate 301 can slide between the two groups of one-way valves 204 on one side of the vacuum cylinder 201, and the piston rod 302 is sealed at the penetration point on the vacuum cylinder 201.

[0061] The piston rod 302 can be controlled to rise and fall on the vacuum cylinder 201. During the process of rising and falling, the piston rod 302 drives the piston plate 301 to slide in the vacuum cylinder 201. When the piston plate 301 moves in a single direction, the gas on one side is discharged into the collecting balloon 205, and the gas in the chest cavity enters the cavity formed by the other side and the vacuum cylinder 201. As a result, the piston plate 301 can continuously and evenly discharge the gas in the chest cavity into the collecting balloon 205 during the reciprocating sliding process. Compared with the traditional one-way piston, this exhaust structure can make the gas discharge faster and more uniform, thereby improving the patient's comfort and treatment effect.

[0062] like Figure 2 , 3 As shown in Figures 7 and 8, in the present embodiment, a handle 104 is provided on the mounting shell 102 so as to slide transversely, a first elastic member 105 is provided between the handle 101 and the handle 104, a lifting frame 401 connected via a driving unit is provided on the handle 104, and the sliding of the handle 104 is converted into driving the lifting frame 401 to move up and down via the driving unit, the driving unit comprises a ratchet 501 which is rotatable in one direction and is arranged in the mounting shell 102, one end of a driving rod 503 is eccentrically hinged to the ratchet 501, and the other end is hinged to the lifting frame 401, a unidirectional driving mechanism connected to the ratchet 501 is provided on the handle 104, and the reciprocating sliding motion of the handle 104 is converted into driving the ratchet 501 to rotate in one direction via the unidirectional driving mechanism.

[0063] The grip 104 and the handle 101 can be gripped to make the grip 104 slide on the mounting shell 102, and the first elastic member 105 can be squeezed. After the grip 104 is released, the grip 104 can be controlled to reset under the action of the first elastic member 105, so as to facilitate the reciprocating sliding of the grip 104. During the sliding process, the grip 104 drives the ratchet 501 to rotate in one direction through the one-way driving mechanism, and a hinged pawl 502 is provided in the mounting shell 102, the pawl 502 is clamped on the ratchet 501, and a torsion spring is provided at the hinge point between the pawl 502 and the mounting shell 102. The ratchet 501 is prevented from reversing by the setting of the pawl 502. During the rotation process of the ratchet 501, the lifting frame 401 can be controlled to lift and lower reciprocate in the mounting shell 102 through the driving rod 503.

[0064] like Figure 2 , Figure 3 , Figures 6 to 8As shown, in this embodiment, the one-way driving mechanism includes a lifting frame 601 which is liftable and arranged on the handle 104, a second elastic member 603 is arranged between the lifting frame 601 and the handle 101, ratchet bars 602 are arranged on the upper and lower sides of the inner wall of the lifting frame 601, and the two groups of ratchet bars 602 are opposite in direction, and one group of ratchet bars 602 is engaged with the ratchet wheel 501, and a guide assembly connected to the lifting frame 601 is arranged on the mounting shell 102, and the lifting frame 601 is driven to rise and fall by the guide assembly when the handle 104 slides back and forth so that the two groups of ratchet bars 602 are alternately engaged with the ratchet bars 602. The guide assembly includes two groups of guide rails 701, which are connected end to end in a ring shape, and the head ends of the guide rails 701 are stepped with the tail ends of the other group of guide rails 701. The head ends of the two groups of guide rails 701 are provided with inclined surfaces 702. A mounting frame 604 is provided on the lifting frame 601, and a guide column 605 is slidably provided on one side of the mounting frame 604. A third elastic member 606 is provided between the guide column 605 and the other side of the mounting frame 604, and the end of the guide column 605 is slidably clamped in the guide rail 701 and abuts against the inner wall.

[0065] The handle 104 drives the lifting frame 601 to slide along with it during the sliding process, thereby driving the guide column 605 to slide in the guide rail 701. Under the action of the third elastic member 606, the end of the guide column 605 is always in contact with the inner wall of the guide rail 701. When the guide column 605 moves on the upper set of guide rails 701 and moves to its end, the guide column 605 is guided by the inclined surface 702 to move to the lower set of guide rails 701 after passing through the stepped connection. This drives the lifting frame 601 to descend, so that the upper set of ratchet bars 602 engage with the ratchet 501, so that the handle 104 can make the two sets of ratchet bars 602 alternately engage with the ratchet 501 during the reciprocating sliding process, thereby controlling the unidirectional rotation of the ratchet 501, and by setting ratchet wheels 501 of different sizes, a single grip of the handle 104 can drive the ratchet 501 to rotate multiple times, so that the piston plate 301 can be reciprocated and lifted multiple times in the vacuum cylinder 201, thereby increasing the vacuum rate.

[0066] like Figure 4 , 5 As shown, in this embodiment, a connection assembly is provided on the lifting frame 401, and the lifting frame 401 can be selectively fixedly connected or released with the piston rod 302 through the connection assembly. The connection assembly includes a clamping block 403, a clamping hole 402 is provided on the lifting frame 401, and the clamping block 403 is slidably clamped in the clamping hole 402, a clamping groove 303 is provided at the end of the piston rod 302, and the clamping block 403 is clamped in the clamping groove 303, and the end of the piston rod 302 is a wedge-shaped surface, a fourth elastic member 405 is provided between the clamping block 403 and the clamping hole 402, and a pull ring 404 is provided on the clamping block 403, and the pull ring 404 extends out of the mounting shell 102.

[0067] When installing the vacuum pump 201, the piston rod 302 is inserted downward into the installation shell 102, and the wedge-shaped surface at the end of the piston rod 302 pushes the block 403 to slide and compress the fourth elastic member 405 until the piston rod 302 penetrates the clamping hole 402. Under the reset action of the fourth elastic member 405, the block 403 is controlled to be clamped into the clamping groove 303, so that the piston rod 302 is automatically connected to the lifting frame 401 during the installation of the vacuum pump 201. The piston rod 302 can be lifted and lowered by controlling the lifting of the lifting frame 401 to quickly pump air. After use, the block 403 can be disengaged from the clamping groove 303 by pulling the pull ring 404, and the piston rod 302 can be disassembled, which is convenient for discarding and replacing some disposable parts.

[0068] Specific usage and beneficial effects of the present invention:

[0069] When the device is in use, the puncture needle 207 is inserted into the chest cavity and the grip 104 is repeatedly gripped to slide on the mounting shell 102. During the movement of the grip 104, the driving unit converts the sliding of the grip 104 into driving the lifting frame 401 to rise and fall. During the lifting process, the lifting frame 401 drives the piston rod 302 to rise and fall in the vacuum cylinder 201, and then the gas in the chest cavity is extracted into the collecting balloon 205 through the piston pumping mechanism, so as to avoid gas leakage and affect the health of medical staff, and then quickly extract the gas in the patient's chest cavity to treat pneumothorax. After use, the fixing of the lifting frame 401 and the piston rod 302 can be released through the connecting component, and then the vacuum cylinder 201 can be disassembled. The vacuum cylinder 201, the puncture needle 207 and the collecting balloon 205 are disposable and can be discarded after use, and the remaining parts can be used repeatedly. There is no need to discard the entire device after each treatment, thereby effectively saving the cost of treatment.

[0070] In the process of gripping the handle 104, the lifting frame 601 is driven to slide along, and the lifting frame 601 drives the guide column 605 to move alternately in the two sets of guide rails 701 during the sliding process. When the guide column 605 contacts the inclined surface 702 of the guide rail 701, it enters the tail end of the other set of guide rails 701 from the head end of one set of guide rails 701, and the two sets of guide rails 701 are connected in a stepped manner with the second elastic member 603 and the third elastic member 606, so that the guide column 605 can only move between the two sets of guide rails. The lifting frame 601 moves unidirectionally in the ring surrounded by the track 701, thereby controlling the lifting and lowering of the lifting frame 601 while sliding back and forth, so that the two sets of ratchet bars 602 are alternately engaged with the ratchet wheel 501, thereby controlling the ratchet wheel 501 to continuously rotate unidirectionally to drive the lifting frame 401 to slide back and forth through the driving rod 503. When the diameter of the ratchet wheel 501 is small, a single grip of the handle 104 can make the piston plate 301 move multiple times in the piston, so that the gas in the chest cavity can be quickly and evenly discharged, effectively improving the efficiency of pneumothorax treatment.

[0071] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. On the basis of the present invention, some modifications or improvements can be made thereto, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A thoracentesis and extraction device for treating pneumothorax, characterized in that: Included are: A handle (101), wherein a mounting shell (102) is provided on the handle (101); A vacuum cylinder (201) is detachably arranged on the mounting shell (102), wherein one end of the vacuum cylinder (201) is provided with a puncture needle (207) and the other end is provided with a collecting balloon (205); The piston pumping mechanism is arranged in the pumping cylinder (201), and comprises a piston rod (302) arranged in the pumping cylinder (201) and capable of being raised and lowered. The piston pumping mechanism converts the raising and lowering of the piston rod (302) into driving the gas in the puncture needle (207) to flow unidirectionally into the collecting balloon (205); A handle (104) is disposed on the mounting shell (102) in a lateral sliding manner, and a lifting frame (401) connected via a driving unit is disposed on the handle (104), and the driving unit converts the sliding movement of the handle (104) into driving the lifting frame (401) to move upward and downward; and A connection assembly is arranged on the lifting frame (401) to selectively fix or release the lifting frame (401) and the piston rod (302).

2. A thoracentesis and suction device for treating pneumothorax according to claim 1, characterized in that: Two groups of snap-on frames (103) are provided on the mounting shell (102); one end of the vacuum cylinder (201) is detachably connected to the puncture needle (207) via an air inlet chamber (202); the other end is connected to the collecting balloon (205) via an air exhaust chamber (203); the air inlet chamber (202) and the air exhaust chamber (203) are respectively snap-on in the two groups of snap-on frames (103).

3. A thoracentesis and suction device for treating pneumothorax according to claim 2, characterized in that: The air inlet end of the collecting balloon (205) is sleeved on the exhaust chamber (203) and is fixedly connected thereto via an elastic ring (206).

4. A thoracentesis and suction device for treating pneumothorax according to claim 2, characterized in that: The piston pumping mechanism comprises: One-way valves (204) are provided in four groups and are all provided on the air pump (201), wherein two groups of the one-way valves (204) are connected to the air inlet chamber (202), and the other two groups of the one-way valves (204) are connected to the air exhaust chamber (203), so as to form two groups of one-way passages for gas to flow from the puncture needle (207) to the collecting balloon (205); and The piston plate (301) is arranged on the piston rod (302) and can slide between the two sets of one-way valves (204) on one side of the vacuum cylinder (201). The penetration of the piston rod (302) on the vacuum cylinder (201) is sealed.

5. A thoracentesis and suction device for treating pneumothorax according to claim 1, characterized in that: The driving unit comprises: A ratchet wheel (501) is unidirectionally rotatable and arranged in the mounting shell (102); A driving rod (503), one end of which is eccentrically hinged to the ratchet (501), and the other end of which is hinged to the lifting frame (401); and A one-way driving mechanism is arranged on the handle (104) and connected to the ratchet (501) so as to convert the reciprocating sliding motion of the handle (104) into driving the ratchet (501) to rotate in one direction.

6. A thoracentesis and suction device for treating pneumothorax according to claim 5, characterized in that: A first elastic member (105) is provided between the handle (101) and the grip (104).

7. A thoracentesis and suction device for treating pneumothorax according to claim 5, characterized in that: The one-way driving mechanism comprises: A lifting frame (601) is liftably arranged on the handle (104), and a second elastic member (603) is arranged between the lifting frame (601) and the handle (104); Two groups of ratchet bars (602) are provided and arranged on the upper and lower sides of the inner wall of the lifting frame (601) relative to each other, the two groups of ratchet bars (602) are in opposite directions, and one group of the ratchet bars (602) is engaged with the ratchet wheel (501); and A guide assembly is arranged on the mounting shell (102) and connected to the lifting frame (601) to drive the lifting frame (601) to rise and fall when the handle (104) slides back and forth so that the two groups of ratchet bars (602) are alternately engaged with the ratchet bars (602).

8. A thoracentesis and suction device for treating pneumothorax according to claim 7, characterized in that: The guide assembly comprises: The guide rails (701) are provided in two groups, and the two groups of guide rails (701) are connected end to end to form a ring shape, and the head end of the guide rails (701) is stepped with the tail end of the other group of guide rails (701), and the head ends of the two groups of guide rails (701) are provided with inclined surfaces (702); A mounting frame (604) is arranged on the lifting frame (601); and The guide column (605) is slidably arranged along its axis on one side of the mounting frame (604), and a third elastic member (606) is arranged between the guide column and the other side of the mounting frame (604). The end of the guide column (605) is slidably arranged in the guide track (701) and abuts against the inner wall.

9. A thoracentesis and suction device for treating pneumothorax according to claim 5, characterized in that: A hinged pawl (502) is arranged inside the mounting shell (102), the pawl (502) is clamped on the ratchet wheel (501), and a torsion spring is arranged at a hinge point between the pawl (502) and the mounting shell (102).

10. A thoracentesis and suction device for treating pneumothorax according to claim 1, characterized in that: The connection component includes: A clamping block (403), wherein a clamping hole (402) is provided on the lifting frame (401), and the clamping block (403) is slidably clamped in the clamping hole (402), and a clamping groove (303) is provided at the end of the piston rod (302), and the clamping block (403) is clamped in the clamping groove (303), and the end of the piston rod (302) is a wedge-shaped surface; a fourth elastic member (405), arranged between the clamping block (403) and the clamping hole (402); and A pull ring (404) is arranged on the clamping block (403) and extends out of the mounting shell (102).

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