Visual drainage tube

Abstract

The utility model relates to the technical field of medical instruments, and discloses a visual drainage tube which comprises a tube body, a central cavity extending in the axial direction of the tube body is arranged in the tube body, the tube body is provided with a tail end used for being placed in the body and a head end located outside the body, an air bag is arranged on the end face of the tail end of the tube body, and the head end of the tube body is further connected with an inflation tube. The tube body is provided with an inflation channel connecting the inflation tube and the air bag, and the air bag has an expansion state that the air bag is located on the outer side of the tube body to expand the space between the tube body and the tissue after being inflated and expanded. An endoscope and other structures can be arranged in the central cavity of the pipe body in a matched mode, so that an operator can conveniently observe and find blockage and other conditions in real time, and dredging and adjusting are conducted; the air bag can be inflated through the inflation tube and the inflation channel, the air bag expands to push away tissue and visceral organs at the tail end of the drainage tube, a gap is formed between the tail end of the drainage tube and the tissue and visceral organs, and therefore an operation space used by an endoscope is formed, and medical staff can conveniently observe the condition of an operation area through the endoscope and intervene in treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a visual drainage tube. Background Art

[0002] During surgical treatment of diseases, in order to prevent postoperative infection and promote wound healing, it is necessary to drain body fluids and secretions between human tissues or in body cavities. In this process, drainage tubes are the most commonly used instruments. Drainage tubes are placed in locations where body fluids may leak or secretions may be abundant. As the body moves, the drainage tubes will shift. Excessive secretions may block the drainage tubes, causing them to lose their original function. The drainage tubes currently used in clinical practice have basically no visual function. Clinical adjustment of the tube position can only rely on clinical experience, which is uncertain. At the same time, because it is impossible to directly observe the situation in the surgical area, such as anastomotic leakage, local wrapping, or poor drainage in the surgical area, it is difficult to find the blockage site in time, delaying treatment.

[0003] The patent with authorization announcement number CN214807764U discloses a visually adjustable and precisely positioned chest drainage tube, including a drainage tube, a tube head and a control device, one end of the drainage tube is connected to a one-way valve, the other end of the one-way valve is respectively connected to an inflation tube and a drainage ball, and a flow sensor for monitoring the flow in the pipeline is provided on the pipeline between the one-way valve and the drainage ball, a control guide wire for positioning is provided inside the drainage tube, a micro-camera optical fiber line is provided inside the control guide wire, an air bag for fixing the position of the tube head is provided on the outer surface of the end of the drainage tube, the inflation tube is connected to the air bag, a pressure sensor is provided on the outer surface of the air bag, a temperature sensor is also provided on the outer surface of the end of the drainage tube, the temperature sensor and the pressure sensor are close to the end opening of the drainage tube, the control device includes a control processor and a display, the output end of the micro-camera optical fiber line is connected to the input end of the display, the output ends of the flow sensor, the temperature sensor and the pressure sensor are respectively connected to the input end of the control processor, and the output end of the control processor is connected to the input end of the display.

[0004] The chest drainage tube mentioned above can directly see the situation inside the drainage tube by adapting the camera fiber and the display, and detect the physical condition through different sensors to provide timely treatment. However, after the drainage tube is placed in the body, the end of the drainage tube is easily wrapped with the tissues and organs, and there is no gap. As a result, after the endoscope is inserted into the existing drainage tube, the endoscope will be blocked by the tissues and organs at the end of the drainage tube and lack of movement space, making it impossible to directly observe the situation in the drainage area. Utility Model Content

[0005] The utility model aims to provide a visualized drainage tube to solve the problem in the prior art that the end of the drainage tube is wrapped by tissues and organs and is difficult to be used with an endoscope.

[0006] To achieve the above object, the present utility model provides a visual drainage tube, which includes a tube body. The inside of the tube body has a central cavity extending along the axial direction of the tube body. The tube body has a distal end for insertion into the body and a proximal end located outside the body. An airbag is provided at the end face of the distal end of the tube body. The proximal end of the tube body is also connected with an inflation tube. The tube body is provided with an inflation channel connecting the inflation tube and the airbag. The airbag has an inflated state in which it is located outside the tube body after inflation to expand the space between the tube body and the tissue.

[0007] Preferably, the distal end of the tube body has an inner wall and an outer wall arranged at intervals. An annular accommodation cavity is formed between the inner wall and the outer wall. The airbag is arranged in the accommodation cavity when not inflated.

[0008] Preferably, the airbag includes a first membrane and a second membrane. The first membrane is located on the side close to the inner wall, and the second membrane is located on the side close to the outer wall. The elasticity of the first membrane is less than that of the second membrane so that the airbag forms a trumpet-shaped structure after inflation.

[0009] Preferably, the first membrane includes a plurality of membrane flaps. The membrane flaps are sequentially connected along the axial direction of the tube body. The elasticity of each membrane flap gradually decreases in the direction away from the proximal end.

[0010] Preferably, a one-way valve is further provided on the inflation tube. The one-way valve allows gas to flow unidirectionally towards the airbag.

[0011] Preferably, it further includes a flushing tube and a flushing joint. The flushing tube extends along the axial direction of the tube body. The flushing joint is fixedly arranged on the tube body. The flushing joint is communicated with the flushing tube.

[0012] Preferably, the flushing tube is arranged inside the central cavity and is fixedly connected to the cavity wall of the central cavity.

[0013] Compared with the prior art, the visual drainage tube of the embodiment of the present utility model has the beneficial effects that: a central cavity is arranged inside the tube body, and structures such as an endoscope can be adapted in the central cavity, which is convenient for operators to observe in real time and find blockages and other situations, and conduct dredging and adjustment; an airbag is arranged at the distal end of the tube body. After the drainage tube is inserted into the body, the airbag can be inflated through the inflation tube and the inflation channel. The airbag expands outside the distal end of the tube body, which can push away the tissues and organs at the distal end of the drainage tube, so that there is a gap between the distal end of the drainage tube and the tissues and organs, thereby forming an operation space for the use of the endoscope, which is convenient for medical staff to observe the condition of the surgical area and intervene in the treatment through the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the visual drainage tube of the present utility model;

[0015] Figure 2 is Figure 1 a cross-sectional view of the visual drainage tube;

[0016] Figure 3 is Figure 2 an enlarged schematic view of part A of the visual drainage tube;

[0017] Figure 4 is a schematic structural view of the airbag of the visual drainage tube of the present utility model when the airbag is in an inflated state;

[0018] Figure 5 is a schematic structural view of the first membrane of the airbag of the visual drainage tube of the present utility model.

[0019] In the figure, 1 is the tube body, 11 is the central cavity, 12 is the inflation channel, 13 is the inner wall, 14 is the outer wall, 15 is the accommodation cavity, 2 is the airbag, 21 is the first membrane, 22 is the second membrane, 23 is the membrane flap, 3 is the inflation tube, 4 is the one-way valve, 5 is the flushing tube, and 6 is the flushing joint. Specific embodiments

[0020] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0021] A preferred embodiment of a visual drainage tube of the present utility model, as Figures 1 to 5 shown, the visual drainage tube includes a tube body 1. The tube body 1 is a hollow structure, and the interior of the tube body 1 has a central cavity 11 extending along the axial direction of the tube body 1. The specification of the central cavity 11 is adapted to an endoscope, so that medical staff can put an endoscope into the drainage tube through the central cavity 11 to observe the drainage situation in real time.

[0022] The tube body 1 has a distal end and a proximal end. The distal end is for insertion into the patient's body, and the proximal end is located outside the patient's body. An airbag 2 is also provided at the distal end face of the tube body 1. The proximal end of the tube body 1 is also connected to an inflation tube 3. An inflation channel 12 is provided in the tube body 1. The inflation channel 12 connects the inflation tube 3 and the airbag 2. The inflation tube 3 is used to connect to an external inflation device, and the airbag 2 can be inflated through the inflation tube 3 and the inflation channel 12; in this embodiment, the inflation channel 12 is located within the tube wall of the tube body 1.

[0023] When the endoscope is not needed, the airbag 2 shrinks and hides at the end of the drainage tube because it is not inflated; when the endoscope is needed, medical staff inflate the airbag 2 through the inflation tube 3. After the airbag 2 is inflated and expands, it protrudes away from the proximal end and is located outside the tube body 1. At this time, the airbag 2 is in an inflated state, separating the tissue organs, mesentery, omentum, etc. in the abdominal cavity, thus forming a space for the endoscope to observe and operate, and realizing 360° observation around the drainage tube in combination with the bendable function of the endoscope.

[0024] This visual drainage tube is provided with a central cavity 11 inside the tube body 1. Structures such as an endoscope can be adapted inside the central cavity 11, which is convenient for operators to observe and detect blockages and other situations in real time, and carry out dredging and adjustment; an airbag 2 is provided at the end of the tube body 1. After the drainage tube is inserted into the body, the airbag 2 can be inflated through the inflation tube 3 and the inflation channel 12. The airbag 2 expands outside the end of the tube body, and can push away the tissue organs at the end of the drainage tube, so that there is a gap between the end of the drainage tube and the tissue organs, thus forming an operation space for the endoscope to use, which is convenient for medical staff to observe the condition of the surgical area and intervene in the treatment through the endoscope.

[0025] Preferably, the end of the tube body 1 has an inner wall 13 and an outer wall 14 arranged at intervals, and an annular accommodation cavity 15 is formed between the inner wall 13 and the outer wall 14. The airbag 2 is arranged in the accommodation cavity 15 when not inflated.

[0026] The end of the tube body 1 forms an accommodation cavity 15 to arrange the airbag 2, so that the airbag 2 can be hidden in the accommodation cavity 15. When inserting the drainage tube into the body, the airbag 2 can be prevented from affecting the intubation. In this embodiment, the length of the accommodation cavity 15 in the axial direction of the tube body 1 is 2 cm.

[0027] Preferably, the airbag 2 includes a first membrane 21 and a second membrane 22. The first membrane 21 is located on the side close to the inner wall 13, and the second membrane 22 is located on the side close to the outer wall 14. The elasticity of the first membrane 21 is less than that of the second membrane 22 so that the airbag 2 forms a horn-shaped structure after inflation.

[0028] The airbag 2 is formed by the first membrane 21 and the second membrane 22. Since the elasticity of the first membrane 21 is less than that of the second membrane 22, after the airbag 2 is inflated by blowing air, the inner side expands and deforms less than the outer side, which has a shaping effect on the airbag 2, ensuring that the airbag 2 forms a stable operation space in a horn-shaped structure after inflation.

[0029] Preferably, the first membrane 21 includes a plurality of membrane flaps 23, and the membrane flaps 23 are sequentially connected along the axial direction of the tube body 1, and the elasticity of each membrane flap 23 gradually decreases in the direction away from the proximal end.

[0030] The first capsule membrane 21 is formed by respective membrane flaps 23. Each membrane flap 23 is an annular structure. The elasticity of the membrane flap 23 affects the deformation amount of the first capsule membrane 21 at this position. By arranging each membrane flap 23, it is ensured that the deformation of the membrane flap 23 is minimal near the tube body 1 and maximal far from the tube body 1. When the airbag 2 expands and deforms, the change is more gentle, avoiding affecting the tissue organs.

[0031] Preferably, a one-way valve 4 is further provided on the air inflation tube 3. The one-way valve 4 allows gas to flow unidirectionally towards the airbag 2.

[0032] The one-way valve 4 can ensure that it can only move towards the airbag 2 without human influence. After the airbag 2 expands, it can avoid deflation and remain in the inflated state.

[0033] Preferably, it further includes a flushing tube 5 and a flushing connector 6. The flushing tube 5 extends along the axial direction of the tube body 1. The flushing connector 6 is fixedly arranged on the tube body 1, and the flushing connector 6 is communicated with the flushing tube 5.

[0034] A flushing tube 5 is added inside the drainage tube. Through the flushing connector 6, liquids such as sterile normal saline and medicinal liquids can be injected into the body to form flushing drainage, increasing the flushing function. Liquid can enter from the flushing tube 5 and exit from the central cavity 11, enhancing the flushing effect.

[0035] Preferably, the flushing tube 5 is arranged inside the central cavity 11, and the flushing tube 5 is fixedly connected to the cavity wall of the central cavity 11.

[0036] The flushing tube 5 is arranged inside the central cavity 11 and is arranged in parallel with the tube body 1, which can avoid being arranged in the tube wall of the tube body 1 and reduce costs. In this embodiment, the flushing tube 5 is adhesively fixed to the inner wall 13 of the central cavity 11 and can also be integrally formed.

[0037] In summary, the embodiment of the present utility model provides a visual drainage tube. A central cavity is arranged inside the tube body, and structures such as an endoscope can be adapted inside the central cavity, facilitating the operator to observe in real time and discover blockages and other situations for dredging and adjustment; an airbag is arranged at the end of the tube body. After the drainage tube is inserted into the body, the airbag can be inflated through the air inflation tube and the air inflation channel. The airbag expands outside the end of the tube body, which can push away the tissue organs at the end of the drainage tube, so that there is a gap between the end of the drainage tube and the tissue organs, thereby forming an operating space for the endoscope to use, facilitating medical staff to observe the condition of the surgical area through the endoscope.

[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A visual drainage tube, characterized in that, It includes a tube body (1) which has a central cavity (11) extending along the axial direction of the tube body (1) inside. The tube body (1) has an end for being placed inside the body and a head end located outside the body. An airbag (2) is provided at the end face of the end of the tube body (1). A gas charging tube (3) is also connected to the head end of the tube body (1). The tube body (1) is provided with a gas charging channel (12) connecting the gas charging tube (3) and the airbag (2). The airbag (2) has an inflated state where it is located outside the tube body (1) after inflation to expand the space between the tube body (1) and the tissue.

2. The visual drainage tube according to claim 1, wherein The end of the tube body (1) has an inner wall (13) and an outer wall (14) arranged at intervals. An annular accommodation cavity (15) is formed between the inner wall (13) and the outer wall (14). The airbag (2) is arranged in the accommodation cavity (15) when not inflated.

3. The visual drainage tube according to claim 2, characterized in that, The airbag (2) includes a first membrane (21) and a second membrane (22). The first membrane (21) is located on the side close to the inner wall (13), and the second membrane (22) is located on the side close to the outer wall (14). The elasticity of the first membrane (21) is less than that of the second membrane (22) so that the airbag (2) forms a trumpet-shaped structure after inflation.

4. The visual drainage tube according to claim 3, wherein The first membrane (21) includes several membrane flaps (23). Each of the membrane flaps (23) is sequentially connected along the axial direction of the tube body (1). The elasticity of each of the membrane flaps (23) gradually decreases in the direction away from the head end.

5. The visual drainage tube according to any one of claims 1-4, characterized in that A one-way valve (4) is also provided on the gas charging tube (3). The one-way valve (4) allows gas to flow unidirectionally towards the airbag (2).

6. The visual drainage tube according to any one of claims 1-4, characterized in that It further includes a flushing tube (5) and a flushing connector (6). The flushing tube (5) extends along the axial direction of the tube body (1). The flushing connector (6) is fixedly arranged on the tube body (1). The flushing connector (6) is communicated with the flushing tube (5).

7. The visual drainage tube according to claim 6, wherein, The flushing tube (5) is arranged inside the central cavity (11). The flushing tube (5) is fixedly connected to the cavity wall of the central cavity (11).

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