Fixing structure for thoracocentesis

By designing a thoracic puncture fixation structure comprising a bottom dressing, a top dressing and a fixation component, the problems of difficult fixation and secondary injury in traditional closed thoracic drainage are solved, and the drainage tube is firmly clamped and infection protection is achieved.

CN223366054UActive Publication Date: 2025-09-23YANGTZE UNIVERSITY
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Patent Information

Application Number
CN202422300597.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-09-23
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

During traditional closed chest drainage, the drainage tube is difficult to fix and causes secondary harm to the patient.

Method used

A thoracentesis fixing structure is adopted, including a bottom dressing, a top dressing and a fixing component. The box body, the abutment unit and the driving unit are used to clamp the drainage tube to avoid suturing the skin and flesh and ensure that the drainage tube is firmly positioned.

Benefits of technology

The fixing operation of the drainage tube is simplified, secondary damage to the patient is reduced, the stability and safety of the drainage tube are improved, and the risk of infection is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixing structure for thoracocentesis, and belongs to the technical field of medical equipment. The application comprises a first application body, a second application body and a fixing assembly, the fixing assembly comprises a box body, an abutting unit and a driving unit, the two ends of the box body are connected with the second application body and the first application body respectively, and a tube penetrating hole used for containing a drainage tube is formed in the box body; the abutting unit comprises a first abutting piece and a second abutting piece which are arranged in the box body, the opposite ends of the first abutting piece and the second abutting piece are arranged opposite to the pipe penetrating hole, and the opposite ends of the first abutting piece and the second abutting piece extend out of the box body through the box body; the first abutting piece and the second abutting piece are connected with the box body through a driving unit, and the driving unit can drive the first abutting piece and the second abutting piece to move in the opposite directions or in the opposite directions so as to clamp or loosen the drainage tube. The drainage tube does not need to be clamped by sewed skin and flesh, the operation is simple, and the injury to a patient is small.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a fixing structure for thoracocentesis. Background Art

[0002] Closed thoracic drainage involves placing one end of a drainage tube into the chest cavity and connecting the other end to a water-seal bottle located lower than the tube. This allows for the removal of air or collection of fluid within the chest cavity, allowing the lungs to reopen and restore function. This procedure is widely used as a treatment for hemothorax, pneumothorax, and empyema, as well as after thoracotomy, and plays a crucial role in the treatment of these conditions.

[0003] Traditional closed chest drainage requires first puncturing the patient with a needle, then inserting a guide wire along the needle into the patient's body, securing the wire, and removing the needle. Next, a skin expander is used to expand the skin along the guide wire, followed by insertion of a chest tube, which is then secured to the chest wall with a needle and sutures.

[0004] This operation requires suturing, which requires high professional skills of the operator. In addition, suturing is an invasive operation, which increases the pain of the patient. Utility Model Content

[0005] In view of this, it is necessary to provide a fixing structure for thoracentesis to solve the problem that the fixing operation of the drainage tube is difficult and causes secondary damage to the patient during the existing closed chest drainage process.

[0006] The utility model provides a fixing structure for thoracentesis, comprising:

[0007] A base patch, the base patch comprising a first patch body for adhering to the skin;

[0008] A top dressing, comprising a second dressing body, the second dressing body being adhered to the first dressing body, and the drainage tube being inserted into the human body through the first dressing body;

[0009] A fixing assembly, the fixing assembly includes a box body, an abutment unit and a driving unit, the two ends of the box body are respectively connected to the second applicator body and the first applicator body, the box body is provided with a through-tube hole for accommodating the drainage tube; the abutment unit includes a first abutment member and a second abutment member arranged in the box body, the facing ends of the first abutment member and the second abutment member are arranged relative to the through-tube hole, and the opposite ends of the first abutment member and the second abutment member extend through the box body to the outside of the box body; the first abutment member and the second abutment member are connected to the box body through the driving unit, and the driving unit can drive the first abutment member and the second abutment member to move toward or away from each other to clamp or loosen the drainage tube.

[0010] Furthermore, the first abutment member is provided with an inserting hole body which extends along the movement of the second abutment member, and the inserting hole body is provided with a first clamping hole body which cooperates with the through-tube hole; the second abutment member is movably inserted in the inserting hole body, and the second abutment member is provided with a second clamping hole body which cooperates with the through-tube hole; the second abutment member can move relative to the second abutment member, and the first clamping hole body is staggered relative to the second clamping hole body for clamping the drainage tube.

[0011] Furthermore, the driving unit includes a first elastic member arranged in the plug hole body, the two ends of the first elastic member are respectively connected to the second abutment member and the first abutment member, and the first elastic member can drive the second abutment member to be inserted into the first abutment member.

[0012] Furthermore, the driving unit includes at least two second elastic members, the two ends of one second elastic member are respectively connected to the first abutment member and the inner wall of the box body to drive the first abutment member to move away from the second abutment member; the two ends of one second elastic member are respectively connected to the second abutment member and the inner wall of the box body to drive the second abutment member to move away from the first abutment member.

[0013] Furthermore, an annular fixing patch is provided between the box body and the first patch body, and two sides of the annular fixing patch are respectively bonded to the box body and the first patch body.

[0014] Furthermore, an annular memory foam is provided on a side of the annular fixing patch opposite to the box body, and the annular memory foam is adapted to the through-tube hole of the box body.

[0015] Furthermore, the second applicator body is provided with a circular adsorbent cotton that cooperates with the box body, and the projection of the box body relative to the circular adsorbent cotton is located in the circular adsorbent cotton.

[0016] Furthermore, the second dressing body and the first dressing body are both square in shape, and the area of ​​the second dressing body is larger than that of the first dressing body.

[0017] Furthermore, an annular observation layer is provided in the middle of the first dressing body, and the box body is arranged on the inner side of the annular observation layer.

[0018] Furthermore, the first dressing body is a moisture-proof and anti-allergic medical dressing.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The utility model provides a fixing structure for thoracocentesis, which is provided with a fixing assembly, which includes a box body, an abutment unit and a drive unit. The two ends of the box body are respectively connected to the first dressing body and the second dressing body to complete the fixing of the box body and prevent the box body from moving relative to the puncture hole of the human body. In addition, the first dressing body and the second dressing body can encapsulate the box body as a whole to ensure that the box body is isolated from the outside world and prevent bacterial infection. A tube hole is designed on the box body to accommodate and fix the drainage tube to ensure that the position of the drainage tube is stable.

[0021] (2) The utility model provides a fixing structure for thoracocentesis, which is provided with an abutment unit. The abutment unit includes a first abutment and a second abutment provided in a box body. The ends of the first abutment and the second abutment facing each other are provided relative to the tube hole, and the ends of the first abutment and the second abutment facing each other extend to the outside of the box body through the box body. The first abutment and the second abutment are connected to the box body through a driving unit. The driving unit cooperates with an external force outside the box body to drive the first abutment and the second abutment to move toward or away from each other, and can accurately control the fixing and loosening process of the drainage tube. The operation is simple and quick. In addition, the fixing component directly clamps the drainage tube through the abutment unit, and there is no need to suture the patient's skin and flesh, thereby avoiding secondary invasive damage to the patient during the drainage process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 The explosion of the fixed component in the utility model Figure 1 ;

[0025] Figure 3 The explosion of the fixed component in the utility model Figure 2 ;

[0026] Figure 4 The state of the first abutment member and the second abutment member in the present invention Figure 1 ;

[0027] Figure 5 The state of the first abutment member and the second abutment member in the present invention Figure 2 ;

[0028] Figure 6 This is a schematic structural diagram of the drive unit in the present utility model;

[0029] Figure 7It is a structural diagram of the box body in the utility model.

[0030] In the figure, 100, bottom layer dressing; 110, first dressing body; 111, annular observation layer; 120, annular fixing patch; 121, annular memory foam;

[0031] 200, top dressing; 210, second dressing body; 211, round absorbent cotton;

[0032] 300, fixing assembly; 310, box body; 311, pipe hole; 312, box cover; 313, half box; 320, abutment unit; 321, first abutment member; 321a, plug-in hole body; 321b, first clamping hole body; 322, second abutment member; 322a, second clamping hole body; 330, driving unit; 331, first elastic member; 332, second elastic member. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0034] A fixing structure for thoracic puncture in this embodiment relates to the field of medical equipment technology. By providing an adjustable clamping and fixing device in the dressing, the drainage tube is clamped directly with the help of the clamping and fixing device, without the need to use sutured skin and flesh to clamp the drainage tube. The operation is simple and the harm to the patient is small.

[0035] See also Figures 1 to 7 In this embodiment, a fixing structure for thoracocentesis includes: a bottom dressing 100, a top dressing 200 and a fixing assembly 300. The bottom dressing 100 includes a first dressing body 110. The first dressing body 110 can be adhered to the patient's skin as the connection basis of the entire structure.

[0036] The top layer dressing 200 includes a second dressing body 210, which is attached to the first dressing body 110. The drainage tube can be inserted through the first dressing body 110 and inserted into the human body. The drainage tube is fixed to the first dressing body 110 by the second dressing body 210. The first and second dressing bodies 110 and 210 can initially fix the drainage tube, preventing it from moving relative to the human body.

[0037] The fixing assembly 300 includes a housing 310, an abutment unit 320, and a drive unit 330. The ends of the housing 310 are connected to the first and second applicator bodies 110, 210, respectively, securing the housing 310 and preventing it from moving relative to the puncture hole. Furthermore, the first and second applicator bodies 110, 210 together enclose the housing 310, isolating it from the outside world and preventing bacterial infection.

[0038] The box body 310 is designed with a tube hole 311 for accommodating and fixing the drainage tube to ensure that the position of the drainage tube is stable.

[0039] The abutment unit 320 includes a first abutment member 321 and a second abutment member 322 disposed in the box body 310. The facing ends of the first abutment member 321 and the second abutment member 322 are disposed relative to the tube hole 311, and the opposite ends of the first abutment member 321 and the second abutment member 322 extend through the box body 310 to the outside of the box body 310. The first abutment member 321 and the second abutment member 322 are connected to the box body 310 via a drive unit 330. The drive unit 330 cooperates with an external force outside the box body 310 to drive the first abutment member 321 and the second abutment member 322 to move toward or away from each other, thereby precisely controlling the fixing and loosening process of the drainage tube, and the operation is simple and quick. In addition, the fixing assembly 300 directly clamps the drainage tube through the abutment unit 320, eliminating the need to suture the patient's skin and flesh, thereby avoiding secondary invasive damage to the patient during the drainage process.

[0040] It should be noted that sliding holes are provided on both sides of the box body 310, and the first abutment 321 and the second abutment 322 are slidably inserted into different sliding holes respectively. The sliding holes can limit the first abutment 321 and the second abutment 322 respectively, thereby limiting the relative movement of the first abutment 321 and the second abutment 322.

[0041] In some embodiments, see Figure 2 and Figure 3 The first abutment member 321 is provided with an insertion hole body 321a that moves and extends along the second abutment member 322, and the insertion hole body 321a is provided with a first clamping hole body 321b that cooperates with the tube hole 311; the second abutment member 322 is movably inserted into the insertion hole body 321a, and the second abutment member 322 is provided with a second clamping hole body 322a that cooperates with the tube hole 311. The second abutment member 322 can move relative to the second abutment member 322, so that the first clamping hole body 321b is staggered relative to the second clamping hole body 322a, and the drainage tube passed through the first clamping hole body 321b, the second clamping hole body 322a and the tube hole 311 is clamped. The staggered clamping method provides multiple points of contact, which can ensure that the drainage tube is firmly fixed in the chest cavity and is not easy to move or fall out, thereby improving the stability and fixation effect of the drainage tube.

[0042] In some embodiments, see Figure 4 and Figure 5 The second clamping hole 322a has an insertion position and a clamping position relative to the first clamping hole 321b. In the clamping position, the second clamping hole 322a is offset relative to one side of the tube hole 311, and the first clamping hole 321b is first offset relative to the other side of the tube hole 311. The inner edges of the two clamping holes form a relatively closed clamping space, and the clamping space continuously shrinks as the degree of offset deepens, thereby achieving the purpose of clamping the drainage tube. In the insertion position, the second clamping hole 322a is coaxially arranged relative to the tube hole 311, and the first clamping hole 321b is coaxially arranged relative to the tube hole 311. The inner hole of the second clamping hole 322a, the inner hole of the first clamping hole 321b, and the tube hole 311 overlap with each other, reserving a movement channel for the drainage tube. The drainage tube can move freely along the movement channel and change its depth relative to the human chest cavity.

[0043] As one implementation, see Figure 3 and Figure 4 The drive unit 330 includes a first elastic member 331 disposed in the insertion hole 321a. The two ends of the first elastic member 331 are respectively connected to the second abutment member 322 and the first abutment member 321. The elastic member can naturally drive the second abutment member 322 to move within the first abutment member 321. The first elastic member 331 provides continuous and uniform elastic pressure, allowing the second abutment member 322 to always maintain a close fit with the first abutment member 321 and drive the second clamping hole 322a to reach the clamping position. With the help of continuous elastic force, the clamping hole can stably fix the drainage tube, preventing the drainage tube from loosening or falling off due to external disturbances or patient movement, thereby improving the fixation effect of the drainage tube and the safety of the operation.

[0044] The first elastic member 331 can also fine-tune the clamping force according to the diameter and position of the drainage tube to automatically adapt to drainage tubes of different sizes, provide appropriate clamping pressure, avoid deformation or blockage of the drainage tube caused by excessive clamping, and ensure smooth drainage.

[0045] During use, one only needs to manually press the extensions of the first and second abutting members 321, 322 located outside the box body 310. The first and second abutting members 321, 322 move closer to each other, the first elastic member 331 is compressed, and the external force can drive the second clamping hole to the insertion position, thereby adjusting the insertion depth of the drainage tube. When the pressure on the first and second abutting members 321, 322 is released, the first and second abutting members 321, 322 move away from each other under the action of the first elastic member 331, and the second clamping hole is driven to the clamping position, thereby clamping the drainage tube.

[0046] It should be noted that the first elastic member 331 is a compression spring that has the tendency to stretch outward and return to its original length after being compressed. Multiple first elastic members 331 can be used in parallel to provide a more stable and continuous rebound force.

[0047] In some embodiments, abutment heads are provided at opposite ends of the first abutment member 321 and the second abutment member 322 . The two abutment heads can move closer to or farther from each other to clamp or release the drainage tube.

[0048] As another implementation, see Figure 6 The driving unit 330 includes at least two second elastic members 332, the two ends of one second elastic member 332 are respectively connected to the first abutment member 321 and the inner wall of the box body 310, and the corresponding second elastic member 332 can drive the first abutment member 321 to move away from the second abutment member 322, and the two ends of the other second elastic member 332 are respectively connected to the second abutment member 322 and the inner wall of the box body 310, and the corresponding second elastic member 332 can drive the second abutment member 322 to move away from the first abutment member 321.

[0049] Inside the housing 310, a second elastic member 332 is positioned to drive the first and second abutment members 321 and 322 away from each other. This bidirectional drive provides a more balanced clamping force during the drainage tube's securement. Compared to a single-direction drive, bidirectional drive ensures even distribution of clamping force on both sides, preventing the instability of the drainage tube caused by a biased clamping force.

[0050] During use, one only needs to manually press the extensions of the first and second abutting members 321, 322 located outside the box body 310. The first and second abutting members 321, 322 move closer to each other, the first elastic member 331 is stretched, and the external force can drive the second clamping hole to the insertion position, thereby adjusting the insertion depth of the drainage tube. When the pressure on the first and second abutting members 321, 322 is released, the two first elastic members 331 act on the first and second abutting members 321, 322 respectively, moving them away from each other, and the second clamping hole is driven to the clamping position, thereby clamping the drainage tube.

[0051] The second elastic member 332 is specifically a tension spring. After being stretched, it tends to contract inward, returning to its original length. This in turn drives the first and second abutment members 321 and 322 to independently move, clamping the drainage tube. When the tension spring returns to its original length, the inner edges of the first and second clamping holes 321b and 322a coincide, achieving the minimum clamping space and securing the drainage tube in the exact center of the tube-through hole 311. This prevents the drainage tube from tilting or bending due to a misaligned clamping position, ensuring smooth and effective drainage.

[0052] In some embodiments, see Figure 2 An annular fixing patch 120 is provided between the box body 310 and the first applicator body 110. The two sides of the annular fixing patch 120 are respectively bonded to the box body 310 and the first applicator body 110 to form a double-sided connected and fixed structure, which improves the stability of the entire structure and can prevent the box body 310 from being displaced or falling off due to external force during operation, ensuring that the positioning and fixation of the drainage tube are more reliable.

[0053] The annular fixing patch 120 evenly distributes the contact area between the box body 310 and the first dressing body 110, which can disperse the pressure of the box body 310 on the skin surface and avoid skin discomfort or damage caused by pressure concentrated in one place.

[0054] The annular fixing patch 120 forms a closed space between the box body 310 and the first dressing body 110, effectively preventing external liquids (such as blood and body fluids) from penetrating into the drainage device through the gap, keeping the surgical site clean and reducing the risk of infection.

[0055] As a further embodiment, an annular memory foam 121 is provided on one side of the annular fixing patch 120 opposite to the box body 310 , and the annular memory foam 121 is adapted to the through-tube hole 311 of the box body 310 .

[0056] The softness and compressibility of the shape memory foam enable it to fit tightly around the drainage tube and the perforation hole 311, forming a highly adaptable sealing effect, which can effectively prevent external air, body fluids, blood, etc. from entering the drainage device, further reducing the risk of infection and ensuring the cleanliness and safety of the surgical site.

[0057] Memory foam offers excellent softness and resilience, adapting to the curvature of the patient's skin surface, providing a more comfortable feel. Compared to rigid materials, memory foam reduces pressure points on the skin, reducing pain or discomfort during prolonged wear and enhancing the patient's postoperative experience.

[0058] The ring-shaped memory foam 121 can disperse the pressure of the box body 310 on the skin surface, preventing skin damage or pressure sores caused by excessive local pressure. This cushioning effect is particularly suitable for long-term use scenarios and helps reduce complications caused by prolonged fixation of the drainage device.

[0059] The deformable nature of memory foam allows it to automatically adapt to drainage tubes of varying diameters without the need to replace or adjust the fixture. This not only increases the versatility of the device but also reduces operational complexity, making it easier for medical personnel to use the same drainage device in different situations.

[0060] In some embodiments, see Figure 1The second dressing body 210 is provided with a circular adsorbent cotton 211 that cooperates with the box body 310. The circular adsorbent cotton 211 has good cushioning performance, which can absorb and disperse the impact force applied to the box body 310 by the outside world, reduce the shaking or vibration of the drainage tube when it is impacted by external force, and can effectively protect the drainage tube and its surrounding tissues, reduce the risk of displacement or damage of the device due to external force, and extend the service life of the device.

[0061] The projection of the box body 310 relative to the circular absorbent cotton 211 is located in the circular absorbent cotton 211, and the circular absorbent cotton 211 completely covers the box body 310. The circular absorbent cotton 211 forms a closed space between the box body 310 and the second dressing body 210. The adsorption properties of the circular absorbent cotton 211 can be used to absorb external liquids (such as blood and body fluids), reduce the risk of infection, and ensure the cleanliness and safety of the surgical site.

[0062] In some embodiments, see Figure 1 The second applicator body 210 and the first applicator body 110 are both square in shape. The second applicator body 210 has a larger surface area than the first applicator body 110. This larger surface area provides additional adhesion, thereby more firmly securing the entire drainage device. This reduces the risk of the device moving or falling off during use, ensuring that the drainage tube remains in the correct position during treatment.

[0063] The second dressing body 210 with a larger area can cover the first dressing body 110 and contact part of the skin to form a wider sealing area, which helps prevent external pollutants or bacteria from entering the drainage area, reducing the risk of infection, and also effectively prevents body fluid leakage.

[0064] In some embodiments, see Figure 2 An annular observation layer 111 is provided in the middle of the first dressing body 110. This layer 111 is relatively transparent, and the box body 310 is positioned inside the annular observation layer 111, preventing it from obstructing the view. Through the annular observation layer 111, fluid seepage between the first dressing body 110 and the skin can be observed, providing timely reminders to medical staff regarding the replacement of medical consumables. Furthermore, the annular observation layer 111 is relatively breathable, maintaining normal contact between the skin and the outside air, thus preventing any adverse effects on the skin.

[0065] The first dressing body 110 is a moisture-proof and anti-allergic medical dressing. During the drainage process, the applied area may come into contact with liquid, sweat, or other humid environments. A moisture-proof medical dressing can effectively block external moisture, keep the skin dry, and reduce the risk of infection.

[0066] Anti-allergic dressing materials can effectively reduce skin irritation or allergic reactions caused by dressing, such as redness, swelling, itching, etc., and are especially suitable for patients with sensitive skin.

[0067] It should be noted that in some specific situations, after the drainage tube has been used for a period of time, the fixed structure of the thoracentesis needs to be replaced as a whole.

[0068] During the specific process, small non-adhesive triangular areas are provided at the upper left corner and the lower left corner of the first dressing body 110 and the lower right corner of the second dressing body 210. The small non-adhesive triangular areas provide the operator with a gap that is easy to grasp. When it is necessary to separate the first dressing body 110 and the second dressing body 210, or to tear the first dressing body 110 off the human body, the operator can easily grasp this area to operate, avoiding operational difficulties caused by excessive adhesion of the dressing.

[0069] In addition, a slit is provided in the middle of the left side of the first dressing body 110 to facilitate tearing. The slit extends from the left side of the first dressing body 110 to the right side of the first dressing body 110. When tearing the first dressing body 110 from the skin, one can lift the small triangular areas at the upper left and lower left corners of the first dressing body 110 with one hand, respectively, so that the first dressing body 110 is torn apart along the slit, thus completing the removal of the first dressing body 110. The provision of the slit can shorten the area where the first dressing body 110 is instantly subjected to force acting on the skin, reducing the pressure on the skin and alleviating skin damage.

[0070] In some embodiments, see Figure 7 The box body 310 further includes two assembleable half-boxes 313 and a cover 312. A separation groove is provided between the two half-boxes 313. The separation groove passes through the central axis of the separation groove and is arranged perpendicular to the movement trajectory of the second abutment member 322. The two half-boxes 313 can be combined to form the complete box body 310. A thread is provided on the end of the half-box 313 away from the first applicator body 110. The cover 312 is sleeved on the box body 310 and screwed together with the thread of the half-box 313, locking the two half-boxes 313 and preventing them from separating.

[0071] In addition, a pin hole is provided at one end of the half box 313 opposite to the separation groove, and the two ends of the pin are respectively inserted into the pin holes of the two half boxes 313 to further lock the two half boxes 313 to prevent the two from separating.

[0072] At the same time, the first abutment 321 and the second abutment 322 also have a structure similar to that of the box body 310, and can be divided into two independent parts to realize the assembly of the first abutment 321 and the second abutment 322, ensuring that the entire device can be disassembled and assembled without destroying the drainage tube.

[0073] When necessary, medical personnel can disassemble the box body 310 into two parts to expose the drainage tube to the outside, thereby facilitating the replacement of the dressing or the fixing structure body.

[0074] A fixing structure for thoracentesis includes the following steps in sequence:

[0075] 1. Puncture operation

[0076] Inserting the drainage tube: First, perform routine disinfection on the patient's thoracentesis site. Use traditional thoracentesis techniques to puncture the chest cavity with a puncture needle and insert the drainage tube to ensure that the drainage tube enters the chest cavity correctly and is located in the ideal position.

[0077] 2. Fix the drainage tube

[0078] Install the bottom dressing 100 and stick the bottom dressing 100 (ie, the first dressing body 110) to the entire puncture area.

[0079] Install box 310:

[0080] Align the two halves 313 of the box body 310 with the drainage tube and assemble them along the direction of the drainage tube to form a complete box body 310. The separation groove of the box body 310 ensures that the two halves 313 are accurately aligned to avoid misalignment. Glue the bottom of the box body 310 to the first applicator body 110 to complete the box body 310 and the first applicator body 110.

[0081] Locking box 310:

[0082] Put the box cover 312 on the box body 310 and rotate the box cover 312 to tightly lock the two box halves 313 together through the thread to ensure the firmness of the box body 310 (the drainage tube is passed through the box cover 312 in advance). The tube hole 311 on the box body 310 should fit the drainage tube exactly to ensure that the drainage tube is located in the center.

[0083] 3. Clamping and fixing of drainage tube

[0084] Operation of the fixing assembly 300:

[0085] When the box body 310 is assembled, the elastic member drives the first abutment member 321 and the second abutment member 322 to move in opposite directions to clamp the drainage tube. By overlapping the clamping holes, the drainage tube is ensured to be clamped at the center of the tube hole 311, thereby preventing it from shifting during use.

[0086] 4. Application of top dressing 200

[0087] Stick Top Applicator 200:

[0088] The top layer dressing 200 (ie, the second dressing body 210 ) is pasted onto the already installed box body 310 and the bottom layer dressing 100 to further fix the drainage tube.

[0089] The top layer patch 200 is larger in area than the bottom layer patch 100 , providing a larger coverage area and a stronger fixing effect.

[0090] 5. Final inspection

[0091] Check the fixation effect: confirm that the box body 310, the drainage tube and the dressing are firmly fixed and not loose or shifted.

[0092] Ensure there are no bubbles or wrinkles: Check the dressing to ensure that no air has entered or wrinkles have formed, which could affect drainage.

[0093] 6. Subsequent maintenance

[0094] Observe drainage:

[0095] The annular observation layer 111 of the first dressing body 110 can be used to observe the puncture site and drainage status at any time to ensure that the drainage tube functions normally.

[0096] Replacement and cleaning: If the drainage tube needs to be replaced or the puncture site needs to be cleaned, the lock of the box body 310 can be released as needed, and the two halves of the box 313 can be easily disassembled to perform related operations.

[0097] 7. Remove fixed structures

[0098] Removal of the second patch body 210: First, peel off the second patch body 210 from the skin and the first patch body 110.

[0099] Disassembling the box body 310: Disassembling the box body 310 and releasing the fixation of the drainage tube.

[0100] Removing the patch: The non-adhesive design of the small triangular area allows the first patch body 110 to be easily separated from the skin, avoiding unnecessary pain to the patient.

[0101] The above description is only a preferred specific implementation of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the present invention.

Claims

1. A fixing structure for thoracentesis, characterized in that: include: A base patch, the base patch comprising a first patch body for adhering to the skin; A top dressing, comprising a second dressing body, the second dressing body being adhered to the first dressing body, and the drainage tube being inserted into the human body through the first dressing body; A fixing component, the fixing component includes a box body, an abutment unit and a driving unit, the two ends of the box body are respectively connected to the second applicator body and the first applicator body, the box body is provided with a through-tube hole for accommodating the drainage tube; the abutment unit includes a first abutment member and a second abutment member arranged in the box body, the facing ends of the first abutment member and the second abutment member are arranged relative to the through-tube hole, and the opposite ends of the first abutment member and the second abutment member extend through the box body to the outside of the box body; the first abutment member and the second abutment member are connected to the box body through the driving unit, and the driving unit can drive the first abutment member and the second abutment member to move toward or away from each other to clamp or loosen the drainage tube.

2. A thoracentesis fixing structure according to claim 1, characterized in that: The first abutment member is provided with an insertion hole body which extends along the movement of the second abutment member, and the insertion hole body is provided with a first clamping hole body which cooperates with the through-tube hole; the second abutment member is movably inserted in the insertion hole body, and the second abutment member is provided with a second clamping hole body which cooperates with the through-tube hole; the second abutment member can move relative to the second abutment member, and the first clamping hole body is staggered relative to the second clamping hole body for clamping the drainage tube.

3. A thoracentesis fixing structure according to claim 2, characterized in that: The driving unit includes a first elastic member arranged in the insertion hole body, two ends of the first elastic member are respectively connected to the second abutment member and the first abutment member, and the first elastic member can drive the second abutment member to be inserted into the first abutment member.

4. A thoracentesis fixing structure according to claim 2, characterized in that: The driving unit includes at least two second elastic members, the two ends of one second elastic member are respectively connected to the first abutment member and the inner wall of the box body to drive the first abutment member to move away from the second abutment member; the two ends of one second elastic member are respectively connected to the second abutment member and the inner wall of the box body to drive the second abutment member to move away from the first abutment member.

5. A thoracentesis fixing structure according to claim 1, characterized in that: An annular fixing patch is provided between the box body and the first patch body, and two sides of the annular fixing patch are respectively bonded to the box body and the first patch body.

6. A thoracentesis fixing structure according to claim 5, characterized in that: An annular memory foam is provided on one side of the annular fixing patch opposite to the box body, and the annular memory foam is adapted to the through-tube hole of the box body.

7. A thoracentesis fixing structure according to claim 1, characterized in that: The second dressing body is provided with a circular adsorption cotton that matches the box body, and the projection of the box body relative to the circular adsorption cotton is located in the circular adsorption cotton.

8. A thoracentesis fixing structure according to claim 7, characterized in that: The second dressing body and the first dressing body are both square in shape, and the area of ​​the second dressing body is larger than that of the first dressing body.

9. A thoracentesis fixing structure according to claim 1, characterized in that: An annular observation layer is provided in the middle of the first dressing body, and the box body is arranged on the inner side of the annular observation layer.

10. A thoracentesis fixing structure according to claim 9, characterized in that: The first dressing body is a moisture-proof and anti-allergic medical dressing.