Piston type device for clamping and closing chest drainage tube

Abstract

The piston type device comprises an upper drainage tube connected with a patient, a lower drainage tube connected with an external drainage apparatus and a piston type device, the upper drainage tube and the lower drainage tube are respectively communicated with the piston device, and the piston device controls the circulation state between the upper drainage tube and the lower drainage tube. The piston device comprises a sleeve and a piston assembly, the piston assembly is arranged in the sleeve and moves back and forth in the sleeve to control the circulation state of the upper drainage tube and the lower drainage tube, a vent hole is formed in the front end of the sleeve, and a detachable plug used for blocking the vent hole to prevent a patient from touching the piston assembly by mistake to change the circulation state of the drainage tubes is arranged at the vent hole. The plug is fixed on the sleeve; the thoracic cavity drainage tube clamping device has the advantages that on the premise that air tightness is guaranteed, the thoracic cavity drainage tube can be clamped and closed, the drainage tube cannot be damaged under multiple times of operation, the thoracic cavity drainage tube clamping device is detachable, the whole drainage tube does not need to be replaced when part of the drainage tube is damaged, and consumption of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a piston-type device for clamping a chest drainage tube. Background Art

[0002] Closed chest drainage is to place one end of the drainage tube into the patient's chest cavity and connect the other end to a drainage bottle that is lower than the patient's chest cavity, so as to discharge the gas in the chest cavity or collect the fluid in the chest cavity, and restore and maintain the negative pressure in the chest cavity. The chest drainage bottle can be used for the drainage of hemothorax, pneumothorax, empyema, and drainage after thoracoscopic lobectomy. Chest drainage plays a very important role in the treatment of diseases. It is also an important way for medical staff to observe changes in the patient's chest condition.

[0003] When the patient changes position, moves from bed to bed, or goes out for examination, the drainage fluid may flow back into the chest cavity, causing chest infection. Therefore, the drainage tube needs to be clamped.

[0004] The existing technology mostly uses an adjustable clamp or a traditional hemostatic forceps to clamp the chest drainage tube. The repeated use of the adjustable clamp and the traditional hemostatic forceps will cause pressure loss to the drainage tube, thereby affecting the air tightness and the flow of liquid in the tube, thereby affecting the drainage effect. In addition, the chest drainage tube is made of a relatively hard material, and the air tightness is insufficient due to the insufficient clamping force of the adjustable clamp, which may lead to reflux of the drainage fluid. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the multiple clamping of the chest drainage tube by the prior art using the adjusting clamp or the traditional hemostatic forceps causes pressure loss on the drainage tube, thereby affecting the drainage effect of the drainage tube.

[0006] The utility model can realize the clamping of the chest drainage tube under the premise of ensuring air tightness and will not damage the drainage tube during multiple operations. The utility model is detachable and does not need to be replaced as a whole when part of it is damaged, thus reducing the consumption of equipment.

[0007] The technical solutions adopted are:

[0008] A piston device for clamping a chest drainage tube comprises an upper drainage tube connected to a patient, a lower drainage tube connected to an external drain, and a piston device, wherein the upper drainage tube and the lower drainage tube are respectively connected to the piston device, and the piston device controls the flow state between the upper drainage tube and the lower drainage tube, and the piston device comprises a sleeve and a piston assembly, wherein the piston assembly is arranged in the sleeve, and moves back and forth in the sleeve to control the flow state of the upper and lower drainage tubes, wherein a vent hole is provided at the front end of the sleeve, and a detachable plug is provided at the vent hole for blocking the vent hole to prevent the patient from accidentally touching the piston assembly to change the flow state of the drainage tube, and the plug is fixed on the sleeve.

[0009] In a further embodiment of the technical solution of the utility model, the piston assembly includes a first piston and a second piston, the first piston and the second piston are connected by a connecting rod, and the second piston is provided with a push-pull handle for driving the first piston and the second piston to move, so that the first piston and the second piston can be driven to move together by driving the push-pull handle to move, and the second piston is used to ensure the sealing between the inner surface of the sleeve and the second piston.

[0010] As a further optimization of the technical solution of the utility model, the upper surface and the lower surface of the sleeve are respectively provided with cylindrical protrusions for facilitating the insertion of the upper drainage tube and the lower drainage tube, so as to facilitate the fixing of the upper and lower drainage tubes on the piston device.

[0011] In a further preferred embodiment of the technical solution of the utility model, the diameter of the protrusion is smaller than the length of the first piston, so that the first piston can block the protrusion, thereby changing the on-off state in the current drainage tube and avoiding the upper drainage tube and the lower drainage tube from being connected.

[0012] As a further optimization of the technical solution of the utility model, a spiral anti-slip strip is provided on the outer surface of the protrusion to increase the friction between the protrusion and the upper drainage tube and the lower drainage tube, thereby reducing the risk of falling off between the upper drainage tube, the lower drainage tube and the piston.

[0013] In a further preferred embodiment of the technical solution of the utility model, the width of the connecting rod is smaller than the diameter of the protrusion, so that the liquid in the upper drainage tube can flow into the lower drainage tube via the piston device.

[0014] As a further optimization of the technical solution of the utility model, the cross-section of the plug is stepped, and the plug is made of medical rubber, so that the plug can be better fixed at the vent hole to enhance the sealing performance of the overall piston device.

[0015] In a further optimization of the technical solution of the utility model, the plug is fixed to the sleeve by a flexible belt, so that the plug can be detachably fixed at the vent hole for easy use.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model can effectively prevent the patient from pulling the push-pull handle and pressing the push-pull handle inward by cooperating with the plug and the vent hole and utilizing the atmospheric pressure, thereby protecting the current flow condition in the drainage tube from being affected.

[0018] 2. The utility model uses a piston assembly and a push-pull handle in the piston assembly to drive the first piston and the second piston to move to change the flow condition between the upper drainage pipe and the lower drainage pipe.

[0019] 3. The upper drainage tube, the lower drainage tube and the piston device of the utility model can be disassembled from each other, so that when a single component is damaged, it can be replaced separately, thereby reducing the consumption of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0021] Figure 2 is a partial cross-sectional view of the overall structure of this embodiment;

[0022] Figure 3 Schematic diagram of the piston device of this embodiment;

[0023] Figure 4 is a half-section view of the piston device of this embodiment;

[0024] Figure 5 This is a half-section view of the plug in this embodiment;

[0025] Explanation of the reference numerals: 1 - upper drainage tube, 2 - lower drainage tube, 3 - piston device, 4 - sleeve, 5 - piston assembly, 6 - protrusion, 7 - plug, 8 - flexible belt, 41 - vent hole, 51 - first piston, 52 - second piston, 53 - connecting rod, 54 - push-pull handle. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is described in detail below, but the protection scope of the utility model is not limited to the embodiments.

[0027] In order to make the content of this utility model more obvious and easy to understand, the following Figure 1 -Attached Figure 5 The specific implementation manner is further described.

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0029] like Figure 1-5 As shown, a piston device for clamping a chest drainage tube in this embodiment includes an upper drainage tube 1 connected to a patient, a lower drainage tube 2 connected to an external drain, and a piston device 3. The upper drainage tube 1 and the lower drainage tube 2 are connected through the piston device 3, and the piston device 3 is used to change the current flow state between the upper drainage tube 1 and the lower drainage tube 2.

[0030] like Figure 1-Figure 4 As shown, the piston device 3 includes a sleeve 4 and a piston assembly 5. The upper and lower surfaces of the sleeve 4 are respectively provided with cylindrical protrusions 6, which are connected to the sleeve 4. The protrusions 6 facilitate the insertion of the upper drainage tube 1 and the lower drainage tube 2, so that the upper drainage tube 1 is connected to the lower drainage tube 2 through the piston device 3, and the current flow state between the upper drainage tube 1 and the lower drainage tube 2 is changed through the piston device 3.

[0031] In this embodiment, the sleeve 4 is made of transparent plastic, which makes it easy for medical personnel to observe the specific position of the current piston assembly 5 in the sleeve 4.

[0032] A spiral anti-slip strip is also provided on the outer surface of the protrusion 6 to increase the friction between the protrusion 6 and the upper drainage tube 1 and the lower drainage tube 2, thereby preventing the upper drainage tube 1, the lower drainage tube 2 and the piston device 3 from easily falling off.

[0033] In this embodiment, one end of the sleeve 4 is in a closed state and the other end is in an open state.

[0034] The piston assembly 5 is disposed in the sleeve 4 with an open end, and moves back and forth inside the sleeve 4 under the action of external force.

[0035] like Figure 4 As shown, the piston assembly 5 includes a first piston 51 and a second piston 52. The first piston 51 and the second piston 52 are fixedly connected via a connecting rod 53. The end of the second piston 52 that is not fixedly connected to the first piston 51 is provided with a push-pull handle 54 for facilitating medical personnel to change the current flow state between the upper drainage tube 1 and the lower drainage tube 2 according to the patient's own status requirements.

[0036] In this embodiment, the width of the connecting rod 53 is smaller than the diameter of the protrusion 6 , so that the liquid in the upper drainage pipe 1 can be smoothly discharged into the lower drainage pipe 2 through the piston device 3 .

[0037] In this embodiment, the first piston 51 and the second piston 52 are both made of medical rubber material. The first piston 51 and the second piston 52 are both cylindrical. The length of the first piston 51 is greater than the diameter of the protrusion 6 to prevent the liquid in the upper drainage tube 1 from flowing into the lower drainage tube 2 due to insufficient length of the first piston 51.

[0038] The first piston 51 can change the current flow state between the upper drainage tube 1 and the lower drainage tube 2 by moving. When the upper drainage tube 1 and the lower drainage tube 2 need to be in a flow state, the first piston 51 is pushed to the closed end of the sleeve 4. At this time, the cross section of the protrusion 6 is opposite to the connecting rod 53 between the first piston 51 and the second piston 52. The liquid in the upper drainage tube 1 flows into the sleeve 4 through the protrusion 6 on the upper surface of the sleeve 4, and then flows into the lower drainage tube 2 of the sleeve 4 through the protrusion 6 on the lower surface. Figure 4 As shown, Figure 4 The current position of the piston assembly 5 is the flow state between the upper drainage pipe 1 and the lower drainage pipe 2 .

[0039] If it is necessary to prevent the flow between the upper drainage tube 1 and the lower drainage tube 2, the first piston 51 is moved to the protrusion 6. The first piston 51 can block the upper and lower protrusions 6 of the sleeve 4, thereby preventing the liquid in the upper drainage tube 1 from flowing into the lower drainage tube 2 through the piston device 3.

[0040] The second piston 52 is used to ensure the sealing between the inner surface of the current sleeve 4 and the second piston 52 .

[0041] like Figure 3 As shown, in this embodiment, a circular vent hole 41 is formed on the closed end of the sleeve 4, and a plug 7 is provided at the vent hole 41. The plug 7 is made of medical rubber and is detachably installed at the vent hole 41. When the plug 7 is fixed on the vent hole 41, it is difficult for medical staff or patients to push or pull out the push-pull handle 54, thereby avoiding discomfort to the patient caused by the change of the flow state between the upper drainage tube 1 and the lower drainage tube 2 due to the movement of the push-pull handle 54, which causes the first piston 51 and the second piston 52 to move.

[0042] like Figure 2-5 As shown, the plug 7 is fixed to the surface of the sleeve 4 by a flexible belt 8, the cross-section of the plug 7 is stepped, the front end of the plug 7 is cylindrical, the diameter of the cylinder is consistent with the vent 41, and the surface of the plug 7 is provided with rounded corners, which is convenient for the plug 7 to be plugged in with the vent 41 to complete the sealing of the current overall device, and ensure that when the current plug 7 is fixed on the vent 41, the plug 7 will not be separated from the vent 41 due to the unbalanced pressure inside and outside the sleeve 4 caused by squeezing the push-pull handle 54.

[0043] There are many ways to block the vent hole 41 and ensure the sealing performance of the current piston device 3, so they will not be described one by one.

[0044] The specific method of using the piston-type device for clamping a chest drainage tube in this embodiment is as follows:

[0045] Before use, the upper drainage tube 1 and the lower drainage tube 2 are respectively connected to the piston device 3 through the protrusions 6 on the upper and lower surfaces of the sleeve 4, and the plug 7 at the vent 41 is unplugged. According to the patient's condition, the flow state between the upper drainage tube 1 and the lower drainage tube 2 is confirmed at this time.

[0046] If the upper drainage tube 1 and the lower drainage tube 2 need to be in a flow state, the push-pull handle 54 is pushed to move the first piston 51 to the closed end of the sleeve 4. At this time, the connecting rod 53 between the first piston 51 and the second piston 52 is opposite to the cross-section of the protrusion 6, and the plug 7 is plugged into the vent hole 41. At this time, the push-pull handle 54 is difficult to move outward.

[0047] If the upper drainage tube 1 and the lower drainage tube 2 need to be cut off, pull the push-pull handle 54 to move the first piston 51 to the protrusion 6, and plug the plug 7 into the vent 41. At this time, the push-pull handle 54 is difficult to squeeze, thereby preventing the patient from accidentally touching it, and at the same time cutting off the current flow state between the upper drainage tube 1 and the lower drainage tube 2.

[0048] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

[0049] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A piston-type device for clamping a chest drainage tube, characterized in that: The invention comprises an upper drainage tube (1) connected to a patient, a lower drainage tube (2) connected to an external drainage device, and a piston device. The upper drainage tube (1) and the lower drainage tube (2) are respectively connected to a piston device (3). The piston device (3) controls the flow state between the upper drainage tube (1) and the lower drainage tube (2). The piston device (3) comprises a sleeve (4) and a piston assembly (5). The piston assembly (5) is arranged in the sleeve (4) and moves forward and backward in the sleeve (4) to control the flow state of the upper and lower drainage tubes (2). A vent hole (41) is provided at the front end of the sleeve (4). A detachable plug (7) is provided at the vent hole (41) for blocking the vent hole (41) so as to prevent the patient from accidentally touching the piston assembly (5) and changing the flow state of the drainage tube. The plug (7) is fixed to the sleeve (4).

2. A piston-type device for clamping a chest drainage tube according to claim 1, characterized in that: The piston assembly (5) comprises a first piston (51) and a second piston (52); the first piston (51) and the second piston (52) are connected via a connecting rod (53); and the second piston (52) is provided with a push-pull handle (54) for driving the first piston (51) and the second piston (52) to move.

3. A piston-type device for clamping a chest drainage tube according to claim 1, characterized in that: The upper surface and the lower surface of the sleeve (4) are respectively provided with cylindrical protrusions (6) for facilitating the insertion of the upper drainage tube (1) and the lower drainage tube (2), and the protrusions (6) are in communication with the sleeve (4).

4. A piston-type device for clamping a chest drainage tube according to claim 3, characterized in that: The diameter of the protrusion (6) is smaller than the length of the first piston (51).

5. A piston-type device for clamping a chest drainage tube according to claim 3, characterized in that: The outer surface of the protrusion (6) is provided with a spiral anti-slip strip.

6. A piston-type device for clamping a chest drainage tube according to claim 2 or 3, characterized in that: The width of the connecting rod (53) is smaller than the diameter of the protrusion (6).

7. A piston-type device for clamping a chest drainage tube according to claim 1, characterized in that: The cross section of the plug (7) is stepped, and the plug (7) is made of medical rubber.

8. The piston-type device for clamping a chest drainage tube according to claim 1, characterized in that: The plug (7) is fixed to the sleeve (4) by a flexible band (8).

Images