Internal medicine nursing expectoration device and use method thereof

Abstract

The present invention belongs to the technical field of medical auxiliary devices, and discloses an internal medicine nursing sputum removal device and a method of using the same, comprising a handle and a sputum suction tube passing through the handle, one end of the sputum suction tube being connected to a negative pressure pump, and further comprising: a tube removal assembly, which is mounted on the handle; a blocking assembly, which is symmetrically arranged in the handle; a guide piece, which is movably installed in the handle; a reciprocating assembly, which is arranged in the handle and is transmission-connected to the tube removal assembly; the above scheme opens the negative pressure pump connected to the sputum suction tube, and then the medical staff presses the handle to release the blocking of the sputum suction tube by the blocking assembly, and the frame body also drives the elastic block to rotate through the elastic block, thereby causing the plastic roller to rotate and drive the sputum suction tube to move, so that one end of the sputum suction tube located in the patient's respiratory tract gradually separates from the patient's respiratory tract, thereby solving the problem that the length of the sputum suction tube may be inconsistent each time it is extracted due to insufficient experience of the medical staff, causing discomfort to the patient.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary devices, and in particular is an internal medicine nursing expectoration device and a use method thereof. Background Art

[0002] The sputum suction device usually consists of a negative pressure pump, a sputum collection bottle, a sputum suction tube and other parts. The operation of the negative pressure pump creates a negative pressure environment inside the sputum suction device. Under the action of negative pressure, the outside air enters the sputum suction device through the sputum suction tube, and the sputum is sucked into the sputum suction tube along with the air, and then enters the sputum collection bottle. During use, the medical staff inserts the sputum suction tube into the patient's respiratory tract through the patient's mouth or nasal cavity. The medical staff controls the opening and closing of the negative pressure pump intermittently. When the negative pressure pump is turned on, the medical staff slowly pulls out the sputum suction tube. When the sputum suction tube is pulled out a short distance, the negative pressure pump is turned off, and the operation is repeated. This ensures that each time the negative pressure is turned on, the sputum within a certain range around the sputum suction tube is sucked away with concentrated force. Avoid continuously turning on the negative pressure, which may cause the sputum suction tube to be blocked by sputum, affecting the subsequent sputum suction effect.

[0003] However, when the medical staff draws out too much from the suction tube each time, it may cause discomfort to the patient, such as throat pain and aggravated coughing. If the suction tube draws out too little, it will affect the suction effect, causing sputum to continue to accumulate, which may block the airway and affect respiratory function. Therefore, in order to solve the above problems, an internal medicine nursing sputum removal device and its use method are proposed. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an internal medicine nursing expectoration device and a method of using the same, which solves the problem that the length of the suction tube may be inconsistent each time due to the lack of experience of medical staff, causing discomfort to the patient.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal medicine nursing sputum removal device, comprising a handle and a sputum suction tube passing through the handle, one end of the sputum suction tube being connected to a negative pressure pump, and further comprising: a tube removal assembly, which is mounted on the handle; a blocking assembly, which is symmetrically arranged in the handle and used to make the sputum suction tube open before the tube removal assembly moves the sputum suction tube; a guide member, which is movably installed in the handle and used to guide the sputum suction tube; a reciprocating assembly, which is arranged in the handle and is transmission-connected to the tube removal assembly, and the reciprocating assembly is used to drive the guide member to drive the sputum suction tube to reciprocate along the circumferential direction during the process of the sputum suction tube being extracted;

[0006] The tube extraction assembly comprises a frame body 1 hinged on the handle, a plastic roller is movably connected to the middle part of the frame body 1, the outer periphery of the plastic roller contacts the outer wall of the sputum suction tube, the frame body 1 is hinged to the handle through the shaft part of the plastic roller, one end of the frame body 1 is elastically hinged to the handle, a tension spring is fixedly connected between the other end of the frame body 1 and the handle, a ratchet is also fixedly connected to the shaft part of the plastic roller, an elastic clamping block that is disengaged from the ratchet in the initial state is elastically connected to the frame body 1, an end of the elastic clamping block away from the ratchet is fixedly connected to an inclined block, and one end of the handle is fixedly connected to an extension block;

[0007] The rotation of the handle can drive the extension block to squeeze the inclined block, so that one end of the elastic clamping block is clamped into the ratchet wheel, and the handle can also abut against one end of the frame during the rotation process;

[0008] Rolling balls are also equidistantly arranged inside the handle and are located above the plastic roller and can abut against the outer wall of the sputum suction tube.

[0009] Preferably, one end of the handle is also fixedly connected to an extension frame, and one end of the sputum suction tube is in an inclined state after passing through the extension frame.

[0010] Preferably, a pawl is elastically connected inside the handle, and one end of the pawl can be inserted into the ratchet.

[0011] Preferably, the pawl is provided with a slope;

[0012] A convex column is fixedly connected to the frame body 1, and in an initial state, the convex column can squeeze the slope surface and make one end of the frame body 1 disengage from the ratchet wheel.

[0013] Preferably, the blocking assembly includes a slider 1 movably connected to the inside of the handle, and an elastic telescopic rod is also provided inside the handle, one end of the elastic telescopic rod is used to support the slider 1 and make it have a tendency to move toward the suction tube, an inclined groove is provided on the slider 1, and a vertical rod is movably connected to the bottom of the handle, the bottom end of the vertical rod is abutted against the handle, and a convex shaft that can slide in the inclined groove is fixed to the top of the vertical rod, and the convex shaft can move upward in the inclined groove to cause the slider 1 to move away from each other.

[0014] Preferably, the slider is provided with an edge, and the chute squeezes the outer wall of the sputum suction tube through the edge;

[0015] The slide block 1 is also provided with a vertical groove which is communicated with the top end of the inclined groove.

[0016] Preferably, the guide member comprises a cylinder movably connected to the inside of the handle, a rubber roller is arranged in a circular array inside the cylinder, the sputum suction tube passes through the cylinder and the outer wall of the sputum suction tube contacts the rubber roller, a guide groove is opened on the outer wall of the cylinder, the connecting line of the two ends of the guide groove is parallel to the axis of the cylinder, and rubber rings capable of contacting the inner wall of the handle are also arranged at both ends of the cylinder;

[0017] The reciprocating assembly includes a connecting rod hinged at one end of the frame, and the bottom of the handle is movably connected to a slider 2 that can move in the horizontal direction. One end of the slider 2 is hinged to the top of the connecting rod, and the other end of the slider 2 is elastically connected to a spring combination rod with an upward trend, and the top of the spring combination rod can slide along the guide groove.

[0018] Preferably, a guide plate is further provided inside the handle, the guide plate comprises a plate body fixedly connected to the inside of the handle, one end of the plate body is fixedly connected to an elastic inclined plate that can be bent inside the handle, and the plate body is provided with interconnected through holes and notches;

[0019] A sphere which is located above the through hole and has a smaller diameter than the through hole is fixedly connected to the spring combination rod, and the diameter of the sphere is greater than the width of the elastic inclined plate.

[0020] A method for using an internal medicine nursing expectoration device, using an internal medicine nursing expectoration device, and the method for using the device is as follows:

[0021] When the negative pressure pump is turned on, the medical staff presses the handle to make the blocking component release the blockage on the suction tube. At the same time, the extension block will rotate and squeeze the inclined block to make the elastic card block get into the ratchet. Then the handle is rotated to drive the frame one to rotate, and the frame one will also drive the elastic card block to rotate through the elastic card block, thereby making the plastic roller rotate to drive the suction tube to move, so that the end of the suction tube located in the patient's respiratory tract gradually separates from the patient's respiratory tract.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The above scheme opens the negative pressure pump connected to the sputum suction tube, and then the medical staff presses the handle to make the blocking component release the blocking of the sputum suction tube. At the same time, the extension block will also rotate and the elastic card block will be stuck in the ratchet by squeezing the inclined block. Then the handle is rotated to drive the frame body to rotate, and the frame body will also drive the elastic card block to rotate through the elastic card block, so that the plastic roller rotates to drive the sputum suction tube to move, so that the end of the sputum suction tube located in the patient's respiratory tract gradually leaves the patient's respiratory tract, thereby solving the problem that the length of the sputum suction tube may be inconsistent each time due to the lack of experience of medical staff, which may cause discomfort to the patient;

[0024] In the above scheme, during the rotation process of frame one, the connecting rod will push the slider two to move, so that the spring combination rod moves along the guide groove, so that the cylinder drives the suction tube to rotate reciprocatingly through the rubber roller, thereby preventing the suction tube from being directly pulled out and causing irritation to the patient's respiratory tract. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a front cross-sectional structural schematic diagram of the handle of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure inside the handle of the present invention;

[0028] Figure 4 It is a front cross-sectional structural schematic diagram of the plastic roller of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the tube removal assembly of the present invention;

[0030] Figure 6 It is a schematic diagram of the side cross-sectional structure of a slider 1 of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the plugging assembly of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the reciprocating assembly of the present invention;

[0033] Fig. 9 for Figure 8 Enlarged view of point A in the middle.

[0034] In the figure: 1. handle; 11. extension frame; 12. ratchet; 121. slope; 13. ball; 2. tube extraction assembly; 21. frame body 1; 211. boss; 22. handle; 23. tension spring; 24. plastic roller; 25. ratchet; 26. elastic block; 27. inclined block; 28. extension block; 3. blocking assembly; 31. slider 1; 32. elastic telescopic rod; 33. inclined groove; 331. vertical groove; 332. edge; 34. vertical rod; 35. convex shaft; 4. reciprocating assembly; 41. connecting rod; 42. slider 2; 43. spring combination rod; 431. ball; 5. guide; 51. cylinder; 511. guide groove; 512. rubber ring; 52. rubber roller; 6. guide plate; 61. plate body; 62. elastic inclined plate; 63. through hole; 64. notch; 7. suction tube. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0036] like Figures 1 to 9As shown, the present invention provides an internal medicine nursing sputum removal device, comprising a handle 1 and a sputum suction tube 7 passing through the handle 1, one end of the sputum suction tube 7 being connected to a negative pressure pump, and further comprising: a tube removal assembly 2, which is mounted on the handle 1; a blocking assembly 3, which is symmetrically arranged in the handle 1 and used to make the sputum suction tube 7 conductive before the tube removal assembly 2 moves the sputum suction tube 7; a guide member 5, which is movably installed in the handle 1 and used to guide the sputum suction tube 7; a reciprocating assembly 4, which is arranged in the handle 1 and is transmission-connected to the tube removal assembly 2, and the reciprocating assembly 4 is used to drive the guide member 5 to drive the sputum suction tube 7 to reciprocate along the circumferential direction during the extraction process of the sputum suction tube 7;

[0037] The tube removal assembly 2 includes a frame 21 hinged on the handle 1, a plastic roller 24 is movably connected to the middle of the frame 21, the outer periphery of the plastic roller 24 is in contact with the outer wall of the sputum suction tube 7, the frame 21 is hinged to the handle 1 through the shaft part of the plastic roller 24, one end of the frame 21 is elastically hinged with a handle 22, a tension spring 23 is fixedly connected between the other end of the frame 21 and the handle 1, a ratchet 25 is also fixedly connected to the shaft part of the plastic roller 24, an elastic block 26 that is disengaged from the ratchet 25 in the initial state is elastically connected to the frame 21, an end of the elastic block 26 away from the ratchet 25 is fixedly connected to an inclined block 27, and one end of the handle 22 is fixedly connected to an extension block 28;

[0038] The rotation of the handle 22 can drive the extension block 28 to squeeze the inclined block 27, so that one end of the elastic block 26 is clamped into the ratchet 25. The handle 22 can also abut against one end of the frame 21 during the rotation process;

[0039] The handle 1 is also provided with balls 13 equidistantly disposed above the plastic roller 24 and capable of abutting against the outer wall of the sputum suction tube 7;

[0040] An extension frame 11 is also fixedly connected to one end of the handle 1, and one end of the sputum suction tube 7 is in an inclined state after passing through the extension frame 11;

[0041] By adopting the above scheme, the negative pressure pump connected to the suction tube 7 is turned on, and then the medical staff presses the handle 22 to release the blocking component 3 from the suction tube 7. At the same time, the extension block 28 will also rotate and the elastic block 26 will be stuck in the ratchet 25 by squeezing the inclined block 27. Then, the handle 22 is rotated to drive the frame 21 to rotate, and the frame 21 will also drive the elastic block 26 to rotate through the elastic block 26, thereby causing the plastic roller 24 to rotate and drive the suction tube 7 to move, so that the end of the suction tube 7 located in the patient's respiratory tract gradually separates from the patient's respiratory tract, thereby solving the problem that the length of the suction tube 7 may be inconsistent each time it is drawn due to the lack of experience of the medical staff, causing discomfort to the patient.

[0042] like Figure 2 , Figure 3 and Figure 5As shown, a pawl 12 is elastically connected to the inside of the handle 1, and one end of the pawl 12 can be inserted into the ratchet 25;

[0043] The ratchet 12 is provided with a slope 121; the frame 1 21 is fixedly connected with a boss 211, and in the initial state, the boss 211 can squeeze the slope 121 and make one end of the frame 1 21 disengage from the ratchet 25;

[0044] With the above solution, when the handle 22 drives the frame 1 21 to rotate, the boss 211 will also release the squeezing of the slope 121, and the pawl 12 will be stuck in the ratchet 25 by its own elastic force, so as to avoid the situation that the elastic block 26 drives the ratchet 25 to rotate suddenly and the pawl 12 will block the ratchet 25 from rotating in the opposite direction, so as to prevent the sputum suction tube 7 from penetrating into the patient's respiratory tract again;

[0045] In the initial state, when the protrusion 211 squeezes the slope 121 to disengage the pawl 12 from the ratchet 25, the elastic block 26 also disengages from the ratchet 25. At this time, the ratchet 25 can move in both directions. Therefore, the medical staff can pass the suction tube 7 through the handle 1 and the extension frame 11 and quickly insert the suction tube 7 into the patient's respiratory tract to avoid the situation where the suction tube 7 slowly penetrates into the patient's respiratory tract and causes discomfort to the patient.

[0046] like Figure 1-Figure 3 , Figure 6 and Figure 7 As shown, the blocking assembly 3 includes a slider 31 movably connected to the inside of the handle 1, and an elastic telescopic rod 32 is also provided inside the handle 1. One end of the elastic telescopic rod 32 is used to support the slider 31 and make it have a tendency to move toward the suction tube 7. An inclined groove 33 is provided on the slider 31. A vertical rod 34 is movably connected to the bottom of the handle 1. The bottom end of the vertical rod 34 abuts against the handle 22. A convex shaft 35 that can slide in the inclined groove 33 is fixed to the top of the vertical rod 34. The convex shaft 35 moves upward in the inclined groove 33 to make the slider 31 move in reverse.

[0047] The slider 1 31 is provided with an edge 332, and the inclined groove 33 squeezes the outer wall of the suction tube 7 through the edge 332; the slider 1 31 is also provided with a vertical groove 331 connected to the top of the inclined groove 33, so that when the handle 22 drives the frame 1 21 to rotate, the convex shaft 35 can also slide in the vertical groove 331;

[0048] With the above solution, when the medical staff presses the handle 22, the handle 22 will squeeze the vertical rod 34 and make the convex shaft 35 move upward along the inclined groove 33, so that the two groups of inclined grooves 33 are separated from each other, and the edge 332 releases the squeezing of the middle part of the sputum suction tube 7, so that the sputum suction tube 7 is opened, so that the negative pressure pump can suck out the sputum in the patient's respiratory tract;

[0049] By providing the edge 332, the thrust of the elastic telescopic rod 32 on the slider 1 31 is concentrated on the edge 332, ensuring that the middle partition of the sputum suction tube 7 can be squeezed when the two edges 332 move toward each other.

[0050] like Figure 2-Figure 4 , Figure 8 and Fig. 9 As shown, the guide member 5 includes a cylinder 51 movably connected to the inside of the handle 1, and a rubber roller 52 is arranged in a circular array inside the cylinder 51. The sputum suction tube 7 passes through the cylinder 51 and the outer wall of the sputum suction tube 7 contacts the rubber roller 52. A guide groove 511 is opened on the outer wall of the cylinder 51, and the connecting line of the two ends of the guide groove 511 is parallel to the axis of the cylinder 51. Rubber rings 512 that can contact the inner wall of the handle 1 are also arranged at both ends of the cylinder 51.

[0051] The reciprocating assembly 4 includes a connecting rod 41 hinged to one end of the frame 1 21, and a slider 2 42 that can move in the horizontal direction is movably connected to the bottom of the handle 1. One end of the slider 2 42 is hinged to the top of the connecting rod 41, and the other end of the slider 2 42 is elastically connected to a spring combination rod 43 with an upward trend, and the top of the spring combination rod 43 can slide along the guide groove 511;

[0052] By adopting the above scheme, during the rotation process of the frame 1 21, the connecting rod 41 will push the slider 2 42 to move, so that the spring combination rod 43 moves along the guide groove 511, so that the cylinder 51 drives the suction tube 7 to rotate reciprocatingly through the rubber roller 52, thereby preventing the suction tube 7 from being directly pulled out and causing irritation to the patient's respiratory tract.

[0053] like Figure 2 , Figure 4 , Figure 8 and Fig. 9 As shown, a guide plate 6 is further provided inside the handle 1, and the guide plate 6 includes a plate body 61 fixed to the inside of the handle 1, one end of the plate body 61 is fixed to an elastic inclined plate 62 that can be bent inside the handle 1, and the plate body 61 is provided with a through hole 63 and a notch 64 that are interconnected;

[0054] A sphere 431 is fixedly connected to the spring combination rod 43 and is located above the through hole 63 and has a smaller diameter than the through hole 63 . The diameter of the sphere 431 is greater than the width of the elastic inclined plate 62 .

[0055] By adopting the above scheme, the ball 431 is also driven to move and squeeze the elastic inclined plate 62 during the movement of the spring combination rod 43. When the ball 431 passes over the elastic inclined plate 62, the operator releases the pressure on the handle 22. At this time, the handle 22 is first reset by its own elastic force and the extension block 28 releases the squeeze on the inclined block 27, and the elastic block 26 is reset by its own tension and disengages from the ratchet 25. The frame 1 21 is reset by the tension of the tension spring 23, and the frame 1 21 also resets the spring combination rod 43 through the connecting rod 41 and the slider 2 42 and moves in the opposite direction. At this time, the ball 431 will move along the elastic inclined plate 62 and the bottom of the plate body 61. At this time, the top of the spring combination rod 43 will disengage from the guide groove 511. When the ball 431 moves to the bottom of the through hole 63, the spring combination rod 43 itself will drive the ball 431 to pass through the through hole 63 under the action of its own elastic force, and make the top of the spring combination rod 43 re-enter the guide groove 511 to complete the reset, thereby avoiding the top of the spring combination rod 43 moving along the guide groove 511 when resetting, which will cause the suction tube 7 to rotate, and then cause the suction tube 7 to continue to rotate when it is not extracted, causing respiratory discomfort to the patient.

[0056] The working principle and use process of the present invention:

[0057] The negative pressure pump connected to the sputum suction tube 7 is turned on, and the medical staff presses the handle 22 to release the blocking component 3 from blocking the sputum suction tube 7. At the same time, the extension block 28 will also rotate and squeeze the inclined block 27 to make the elastic block 26 get stuck in the ratchet 25. Then, the handle 22 is rotated to drive the frame 1 21 to rotate, and the frame 1 21 will also drive the elastic block 26 to rotate through the elastic block 26, thereby causing the plastic roller 24 to rotate and drive the sputum suction tube 7 to move, so that the end of the sputum suction tube 7 located in the patient's respiratory tract gradually leaves the patient's respiratory tract;

[0058] When the medical staff presses the handle 22, the handle 22 will squeeze the vertical rod 34 and make the convex shaft 35 move upward along the inclined groove 33, so that the two groups of inclined grooves 33 are separated from each other, and the edge 332 releases the squeezing of the middle part of the sputum suction tube 7, so that the sputum suction tube 7 is opened, so that the negative pressure pump can suck out the sputum in the patient's respiratory tract;

[0059] During the rotation of the frame 1 21 , the frame 1 21 will push the slider 2 42 to move through the connecting rod 41 , so that the spring combination rod 43 moves along the guide groove 511 , so that the cylinder 51 drives the sputum suction tube 7 to rotate reciprocatingly through the rubber roller 52 , thereby preventing the sputum suction tube 7 from being directly drawn out and causing irritation to the patient's respiratory tract;

[0060] During the movement of the spring combination rod 43, the ball 431 will also be driven to move and squeeze the elastic inclined plate 62. When the ball 431 passes over the elastic inclined plate 62, the operator releases the pressure on the handle 22. At this time, the handle 22 is first reset by its own elastic force and the extension block 28 releases the squeeze on the inclined block 27, and the elastic block 26 is reset by its own tension and disengages from the ratchet 25. The frame 1 21 is reset by the tension of the tension spring 23, and the frame 1 21 will also reset and move the spring combination rod 43 in the opposite direction through the connecting rod 41 and the slider 2 42. At this time, the ball 431 will move along the elastic inclined plate 62 and the bottom of the plate body 61. At this time, the top end of the spring combination rod 43 is separated from the guide groove 511. When the ball 431 moves to the bottom of the through hole 63, the spring combination rod 43 itself The elastic force will drive the ball 431 to pass through the through hole 63, and the top end of the spring combination rod 43 will be re-engaged in the guide groove 511 to complete the reset.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal medicine nursing expectoration device, comprising a handle (1) and a sputum suction tube (7) passing through the handle (1), wherein one end of the sputum suction tube (7) is connected to a negative pressure pump, and characterized in that: Also includes: A tube removal assembly (2) mounted on the handle (1); A blocking component (3) is symmetrically arranged in the handle (1) and is used to open the sputum suction tube (7) before the tube removal component (2) moves the sputum suction tube (7); A guide member (5) movably mounted in the handle (1) and used for guiding the sputum suction tube (7); A reciprocating assembly (4) is arranged in the handle (1) and is in driving connection with the tube extraction assembly (2), wherein the reciprocating assembly (4) is used to drive the guide member (5) to drive the sputum suction tube (7) to reciprocate in a circumferential direction during the extraction of the sputum suction tube (7); The tube removal assembly (2) comprises a frame body (21) hinged on the handle (1), a plastic roller (24) being movably connected to the middle of the frame body (21), the outer periphery of the plastic roller (24) being in contact with the outer wall of the sputum suction tube (7), the frame body (21) being hinged to the handle (1) via the shaft portion of the plastic roller (24), one end of the frame body (21) being elastically hinged to a handle (22), a tension spring (23) being fixedly connected between the other end of the frame body (21) and the handle (1), a ratchet (25) being fixedly connected to the shaft portion of the plastic roller (24), an elastic clamping block (26) being elastically connected to the frame body (21) and being disengaged from the ratchet (25) in an initial state, an inclined block (27) being fixedly connected to the end of the elastic clamping block (26) away from the ratchet (25), and an extension block (28) being fixedly connected to one end of the handle (22); The handle (22) is rotated to drive the extension block (28) to press the inclined block (27), so that one end of the elastic clamping block (26) is clamped into the ratchet (25); The guide member (5) comprises a cylinder (51) movably connected to the inside of the handle (1); a rubber roller (52) is arranged in an annular array inside the cylinder (51); the sputum suction tube (7) passes through the cylinder (51) and the outer wall of the sputum suction tube (7) contacts the rubber roller (52); and a guide groove (511) is provided on the outer wall of the cylinder (51); The reciprocating assembly (4) comprises a connecting rod (41) hinged to one end of the frame (21); the bottom of the handle (1) is movably connected to a slider (42) capable of moving in a horizontal direction; one end of the slider (42) is hinged to the top of the connecting rod (41); the other end of the slider (42) is elastically connected to a spring combination rod (43) for maintaining an upward trend; the top of the spring combination rod (43) can slide along the guide groove (511); A guide plate (6) is further provided inside the handle (1), the guide plate (6) comprising a plate body (61) fixedly connected to the inside of the handle (1), one end of the plate body (61) being fixedly connected to an elastic inclined plate (62) capable of being bent inside the handle (1), the plate body (61) being provided with a through hole (63) and a notch (64) which are interconnected; A sphere (431) located above the through hole (63) and having a smaller diameter than the through hole (63) is fixedly connected to the spring combination rod (43); the diameter of the sphere (431) is greater than the width of the elastic inclined plate (62).

2. The internal medicine nursing expectoration device according to claim 1, characterized in that: One end of the handle (1) is also fixedly connected to an extension frame (11), and one end of the sputum suction tube (7) is in an inclined state after passing through the extension frame (11).

3. The internal medicine nursing expectoration device according to claim 1, characterized in that: A ratchet pawl (12) is elastically connected inside the handle (1), and one end of the ratchet pawl (12) can be inserted into the ratchet wheel (25).

4. The internal medicine nursing expectoration device according to claim 3, characterized in that: The ratchet pawl (12) is provided with a slope surface (121); A convex column (211) is fixedly connected to the frame body 1 (21), and in an initial state, the convex column (211) can press the slope surface (121) and cause one end of the frame body 1 (21) to disengage from the ratchet wheel (25).

5. The internal medicine nursing expectoration device according to claim 1, characterized in that: The blocking component (3) comprises a slider (31) movably connected to the inside of the handle (1); an elastic telescopic rod (32) is further provided inside the handle (1); one end of the elastic telescopic rod (32) is used to support the slider (31) and make it have a tendency to move toward the sputum suction tube (7); an inclined groove (33) is provided on the slider (31); a vertical rod (34) is movably connected to the bottom of the handle (1); the bottom end of the vertical rod (34) is in contact with the handle (22); a convex shaft (35) that can slide in the inclined groove (33) is fixed to the top of the vertical rod (34); the convex shaft (35) moves upward in the inclined groove (33) to cause the slider (31) to move in opposite directions.

6. The internal medicine nursing expectoration device according to claim 5, characterized in that: The slider (31) is provided with an edge (332), and the inclined groove (33) squeezes the outer wall of the sputum suction tube (7) through the edge (332); The slide block (31) is also provided with a vertical groove (331) which is in communication with the top end of the inclined groove (33).

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