Thoracic cavity filling prosthesis system after total pulmonary resection

Abstract

The invention discloses a thoracic cavity filling prosthesis system after total pulmonary resection. The thoracic cavity filling prosthesis system comprises a supporting prosthesis, an air path tube and a drainage tube. The shape of the supporting prosthesis is similar to that of the left lung / right lung of a human body, the supporting prosthesis is made of an elastic material, and a hollow air cavity is formed in the supporting prosthesis; the head end of a pipe body of the air path pipe is connected with the hollow air cavity in a communicating mode, and the tail end of the pipe body of the air path pipe is connected with an air pump in a communicating mode. The head end of a tube body of the drainage tube is communicated and connected with the tail end of a tube body of a flow guide tube, the flow guide tube is wound and fixed on the outer surface of the supporting prosthesis, and a plurality of liquid inlet holes are distributed in the flow guide tube. The device disclosed by the invention can help to discharge exudate on a wound surface caused by a total lung resection operation and reduce or relieve pleural effusion.

Description

Technical Field

[0001] The present invention relates to the technical field of pneumonectomy-related equipment, and in particular to a chest cavity filling prosthesis system after pneumonectomy. Background Art

[0002] Pneumonectomy is a complex and invasive surgical procedure. Clinically, it is primarily performed for severe pulmonary infections, such as severe bronchiectasis in one lung involving an entire or multiple lobes, or specific lung infections, such as pulmonary fungal infections and tuberculosis, that destroy the entire lung tissue, causing cavitation and fibrosis, leading to severe lung function impairment. Medical treatment is ineffective, and severe complications such as hemoptysis and infection recur. Pneumonectomy syndrome is a rare but serious complication of pneumonectomy, typically occurring months to years after surgery. It arises from an imbalance in intrathoracic pressure following unilateral pneumonectomy. Due to reduced negative pressure in the ipsilateral thoracic cavity, the contralateral lung overexpands, shifting the mediastinum toward the ipsilateral side, and causing displacement and deformation of structures such as the trachea, bronchi, and heart. This results in bronchial distortion and stenosis, impairing airway patency and ultimately leading to ventilatory dysfunction. Simultaneously, the contralateral thoracic cavity pressure remains relatively high, further exacerbating mediastinal displacement and impairing cardiopulmonary function. Its symptoms usually manifest as progressive dyspnea and wheezing, recurrent lung infections, coughing, and hemoptysis, which are mostly caused by mediastinal shift and over-inflation of the remaining lung, leading to airway compression. At present, in order to reduce the occurrence of the above complications, doctors will consider implanting fillers in the chest cavity after pneumonectomy. However, in practice, we have found that the wound formed by pneumonectomy will exude tissue fluid for a period of time, which can easily cause pleural effusion. The implanted filler structure in the existing scheme cannot overcome the above-mentioned problem of exuding tissue fluid. Therefore, how to develop a new chest cavity filling prosthesis after pneumonectomy to overcome the above-mentioned problems in the prior art is a direction that technicians in this field need to further study. Summary of the Invention

[0003] The purpose of the present invention is to provide a post-pneumonectomy thoracic cavity filling prosthesis system, which can help drain the exudate on the wound surface caused by pneumonectomy and reduce or alleviate the situation of pleural effusion.

[0004] The present invention discloses a thoracic cavity filling prosthesis system after pneumonectomy, which comprises:

[0005] A support prosthesis, wherein the shape of the support prosthesis is similar to that of the left lung / right lung of the human body, the support prosthesis is made of elastic material and has a hollow cavity inside;

[0006] An air pipe, wherein the head end of the pipe body of the air pipe is conductively connected to the hollow cavity, and the tail end of the pipe body of the air pipe is conductively connected to the air pump;

[0007] A drainage tube, the head end of which is electrically connected to the tail end of the guide tube, is wound around and fixed to the outer surface of the support prosthesis. The tube has a plurality of liquid inlet holes. To accommodate the structure of the hollow cavity, the tube is also supported by an elastic material, and its outer surface is connected to the outer surface of the support prosthesis via a plurality of connection points.

[0008] By adopting this technical solution, a support prosthesis is implanted into the human chest cavity immediately after a complete lung resection, while the tail ends of the airway tube and the drainage tube remain outside the body. The overall volume of the support prosthesis is fine-tuned by operating the air pump to adapt it to the cavity formed by the complete lung resection. When exudate is generated on the new wound surface caused by the complete lung resection, at least a portion of the exudate can slowly flow through the liquid inlet hole, into the drainage tube, through the drainage tube, and finally out of the patient's body through the tail end of the drainage tube. This achieves at least partial drainage of the exudate from the wound surface caused by the complete lung resection, thereby reducing or at least partially alleviating the occurrence of pleural effusion in patients after surgery and preventing the bronchial stump from being immersed in the effusion for a long time, causing bronchopleural fistula.

[0009] Preferably, the above-mentioned post-pneumonectomy chest cavity filling prosthesis system further comprises:

[0010] A liquid pump is connected to the drainage tube. Specifically, the liquid pump is configured to be connected to the tail end of the drainage tube.

[0011] By adopting this technical solution: using a liquid pump to form negative pressure at the liquid inlet and adjust the drainage speed and drainage volume, the drainage efficiency of the exudate on the wound surface caused by complete lung resection surgery is increased.

[0012] Preferably, the above-mentioned post-pneumonectomy chest cavity filling prosthesis system further comprises:

[0013] A transition pipe, comprising a first branch pipe, a second branch pipe, and an outer cladding;

[0014] The outer covering is a tubular structure, the tail end of the tube body of the first branch tube is conductively connected to the head end of the tube body of the air circuit tube, the head end of the tube body of the first branch tube passes through the outer covering and is conductively connected to the hollow cavity; the tail end of the tube body of the second branch tube is conductively connected to the head end of the tube body of the drainage tube, the head end of the tube body of the second branch tube passes through the outer covering and is conductively connected to the tail end of the tube body of the drainage tube.

[0015] By adopting this technical solution: using a transition tube to wrap the first branch tube and the second branch tube, which serve as extensions of the airway tube and the drainage tube respectively, the two tubes are prevented from being entangled with each other in the patient's body, thereby ensuring the normal operation of the device.

[0016] Preferably, in the above-mentioned post-pneumectomy chest cavity filling prosthesis system, a positioning joint is provided at the tail end of the tube body of the outer layer, and the tail end of the tube body of the first branch tube is conductively connected to the head end of the tube body of the airway tube through the positioning joint, and the tail end of the tube body of the second branch tube is conductively connected to the head end of the tube body of the guide tube through the positioning joint.

[0017] By adopting this technical solution: setting a positioning joint realizes the rapid connection of the first branch pipe and the second branch pipe to the air pipe and the drainage pipe, simplifying the operation process.

[0018] Preferably, in the above-mentioned post-pneumonectomy chest cavity filling prosthesis system, the positioning joint is configured as a detachable element.

[0019] By adopting this technical solution: after the patient has passed the initial postoperative recovery period and the wound no longer leaks fluid, the positioning joint can be removed and the wound on the patient's body surface can be sutured, and the rest of the transition tube can be sealed into the patient's body, further improving the patient's recovery speed.

[0020] Preferably, the above-mentioned post-pneumonectomy chest cavity filling prosthesis system further comprises:

[0021] A pressure detector, comprising a thin film detection head, a signal line and a detector body; one end of the signal line is connected to the thin film detection head, and the other end passes through the outer layer and is connected to the positioning joint, the signal plug connector; the detector body and the other end of the signal line are connected as a whole; the thin film detection head is connected to the detector body signal through the signal line.

[0022] By adopting this technical solution: setting up a pressure sensor to monitor the changes in pressure values in the patient's body, the doctor can record and observe and adjust. After training the patient, the patient can also monitor and report by himself.

[0023] Preferably, in the above-mentioned post-pneumonectomy chest cavity filling prosthesis system, the thickness of the outer wall of the hollow cavity supporting the prosthesis is 1-3 mm.

[0024] Preferably, in the above-mentioned post-pneumonectomy chest cavity filling prosthesis system, the support prosthesis is made of medical silica gel. The support prosthesis can also be made of other medical-grade soft materials.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] Firstly, the present invention can timely extract the exudate on the wound surface caused by the pneumonectomy operation, thereby reducing the occurrence of pleural effusion.

[0027] Secondly, the present invention can prevent the bronchial stump from being immersed in effusion for a long time, thereby causing bronchopleural fistula.

[0028] Thirdly, the present invention can monitor the changes in pressure values in the patient's body, so that doctors can record, observe and adjust them. After training the patients, the patients can also monitor and report on their own.

[0029] Fourthly, the present invention can remove the positioning joint and suture the patient's body surface wound after the patient's wound no longer leaks fluid, and seal the remaining part of the transition tube into the patient's body, thereby further improving the patient's recovery speed.

[0030] Finally, the present invention has a simple structure and is easy to prepare and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of Example 1.

[0032] Figure 2 This is a structural diagram of Example 2.

[0033] Figure 3 This is a structural diagram of Example 3 when the positioning joint is a fixed element.

[0034] Figure 4 This is a structural diagram of Example 3 when the positioning joint is a detachable component.

[0035] Figure 5 This is a schematic diagram of the internal structure when the positioning joint is a detachable component in Example 3.

[0036] The corresponding reference numerals of the various components in the figure are as follows:

[0037] 100, support prosthesis; 200, airway tube; 300, drainage tube; 500, air pump; 600, liquid pump; 700, waste liquid tank; 410, first branch tube; 420, second branch tube; 430, outer covering; 440, positioning connector; 810, thin film detection head; 820, signal line; 830, detector body; 840, signal connection line; 310, drainage tube; 311, liquid inlet; 441, first extension tube; 442, second extension tube; 443, signal plug; 444, signal wire. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0039] Example 1, please refer to Figure 1 、 Figure 5:

[0040] A thoracic cavity filling prosthesis system after pneumonectomy, comprising: a supporting prosthesis 100, an airway tube 200, a drainage tube 300, and a transition tube.

[0041] The shape of the support prosthesis 100 is similar to that of the left lung / right lung of the human body, and is used to fill the chest cavity of the patient after a pneumonectomy. In this example, a hollow cavity is provided inside the support prosthesis 100, and the support prosthesis 100 is made of an elastic material; thus, the overall volume of the support prosthesis 100 can be fine-tuned by inflating the hollow cavity to accommodate clinical patients of different body shapes. Furthermore, in this example: the support prosthesis 100 is made of medical silicone or other medical-grade soft materials. The size of the hollow cavity is set so that the thickness of its outer wall is controlled at 1-3 mm.

[0042] The transition tube includes a first branch tube 410, a second branch tube 420, and an outer cladding 430. The outer cladding 430 is an overall tubular structure. The tail end of the first branch tube 410 is electrically connected to the head end of the gas line tube 200, the head end of the first branch tube 410 passes through the outer cladding 430, and is electrically connected to the central air cavity. The tail end of the second branch tube 420 is electrically connected to the head end of the drainage tube 300, the head end of the second branch tube 420 passes through the outer cladding 430, and is electrically connected to the tail end of the drainage tube 310. The tail end of the gas line tube 200 is electrically connected to an air pump 500. The air pump 500 is used to adjust the total amount of gas entering the central control air cavity through the gas line tube 200. The leading end of the drainage tube 300 is electrically connected to the trailing end of the drainage tube 310. The drainage tube 310 is wrapped around and fixed to the outer surface of the support prosthesis 100. Several fluid inlet holes 311 are distributed on the drainage tube 310. The trailing end of the drainage tube 300 is located outside the patient's body. In practice, the trailing end of the drainage tube 300 can be fixed near a waste liquid container 700, which is used to collect exudate discharged from the body. In this example, a positioning joint 440 is provided at the trailing end of the outer sheath 430. The trailing end of the first branch tube 410 is electrically connected to the leading end of the airway tube 200 via this positioning joint 440, and the trailing end of the second branch tube 420 is electrically connected to the leading end of the drainage tube 310 via this positioning joint 440. In this example, the positioning joint 440 can be configured as a fixed component or a removable component. When the positioning joint 440 can be configured as a detachable component, in practice, a variety of existing methods can be used to achieve the aforementioned detachable configuration of the positioning joint 440. For example, an external thread can be provided on the positioning joint 440, a corresponding internal thread can be provided on one end of the outer shell 430, and a first extension tube 441 and a second extension tube 442 can be provided within the positioning joint 440, corresponding to the first branch pipe 410 and the second branch pipe 420, respectively. The positions of the first extension tube 441 and the second extension tube 442 are configured such that when the positioning joint 440 and the outer shell 430 are relatively rotated to a fixed connection position through the cooperation of the external thread and the internal thread, the first extension tube 441 rotates until one end thereof is in contact with the first branch pipe 410; and simultaneously, the second extension tube 442 rotates until one end thereof is in contact with the second branch pipe 420. The above-mentioned implementation method is a mature existing technology and is not the subject of this application, so it will not be elaborated herein.

[0043] In practice, the working process is as follows: immediately after a complete lung resection, the support prosthesis 100 is implanted into the human chest cavity, while the tail end of the airway tube 200 and the tail end of the drainage tube 300 remain outside the human body. By operating the air pump 500, the overall volume of the support prosthesis 100 is fine-tuned to adapt it to the cavity formed by the complete lung resection. When exudate is generated on the new wound surface caused by the complete lung resection, the exudate can gradually enter the drainage tube 310 through the liquid inlet hole 311 due to the peristalsis of the human body's internal muscles, then enter the drainage tube 300 through the drainage tube 310 and finally be discharged from the patient's body through the tail end of the drainage tube 300. This achieves the drainage of exudate from the wound surface caused by the complete lung resection, thereby reducing or at least partially alleviating the occurrence of pleural effusion in patients after surgery and preventing the bronchial stump from being immersed in the effusion for a long time, causing bronchopleural fistula. After the patient has passed the initial postoperative recovery period and the wound no longer leaks fluid, the positioning joint 440 is removed and the wound on the patient's body surface is sutured, and the rest of the transition tube is sealed into the patient's body to further improve the patient's recovery speed.

[0044] Example 2, please refer to Figure 2 :

[0045] Compared with Example 1, the technical solution of Example 2 further discloses a liquid pump 600 based on the structure of Example 1. The liquid pump 600 is installed on the tail end of the drainage tube 300.

[0046] In practice, during the process of exudate discharge, the staff can adjust the negative pressure formed at the liquid inlet 311 by controlling the liquid pump 600 to adjust the drainage speed and drainage volume, thereby increasing the discharge efficiency of the exudate on the wound surface caused by the complete lung resection surgery.

[0047] Example 3, please refer to Figure 3-5 :

[0048] Compared with Example 2, the technical solution of Example 3 further discloses a pressure detector based on the structure of Example 2. The pressure detector further includes a thin film detection head 810, a signal line 820 and a detector body 830.

[0049] When the positioning joint 440 can be configured as a fixing element, one end of the signal line 820 is connected to the thin film detection head 810 , and the other end of the signal line 820 passes through the outer layer 430 and is connected to the positioning joint 440 .

[0050] When the positioning joint 440 is configured as a detachable component, the other end of the signal line 820 is provided with a signal plug 443 extending from one side of the positioning joint 440. The detector body 830 is connected to the thin film detection head 810 via a signal line 840 having a signal connector at one end, and the signal connector and the signal plug 443 are plugged together. In this example, in addition to the first extension tube 441 and the second extension tube 442, the positioning joint 440 also includes a signal plug 443 and a signal wire 444 connected to the signal plug 443. The signal plug 443 extends from one side of the positioning joint 440, one end of the signal wire 444 is connected to the signal plug 443, and the other end of the signal wire 444 extends to the other side of the positioning joint 440. Moreover, the buried positions of the signal plug 443 and the signal wire 444 are configured so that when the positioning joint 440 and the outer covering 430 are relatively rotated to a fixed connection position through the cooperation of the external thread and the internal thread, the other end of the signal wire 444 contacts one end of the signal line 820 buried in the outer covering 430 to realize signal connection.

[0051] In this example, a monitoring signal of the pressure value in the patient's body is collected through a thin film monitoring head and the signal is transmitted to the detector body 830 through a signal line 820 and converted into readable data, thereby realizing the monitoring of the pressure value in the patient's body, which is convenient for the doctor to record, observe and adjust. The doctor can understand the recovery of the wound in the body based on the change of the pressure value, and reversely assist the doctor to adjust the operation of the liquid pump 600 in time and accurately grasp the time to remove the positioning joint 440.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the scope of protection of the present invention.

Claims

1. A thoracic cavity filling prosthesis system after pneumonectomy, characterized in that: include: A support prosthesis, wherein the shape of the support prosthesis is similar to that of the left lung / right lung of the human body, the support prosthesis is made of elastic material and has a hollow cavity inside; An air pipe, wherein the head end of the pipe body of the air pipe is conductively connected to the hollow cavity, and the tail end of the pipe body of the air pipe is conductively connected to the air pump; The drainage tube has a head end and a tail end connected to each other, and the drainage tube is wound around and fixed on the outer surface of the support prosthesis. A plurality of liquid inlet holes are distributed on the drainage tube.

2. The post-pneumonectomy chest cavity filling prosthesis system according to claim 1, characterized in that: Also includes: A liquid pump is connected to the drainage tube.

3. The post-pneumonectomy chest cavity filling prosthesis system according to claim 2, characterized in that: Also includes: A transition pipe, comprising a first branch pipe, a second branch pipe, and an outer cladding; The outer covering is a tubular structure, the tail end of the tube body of the first branch tube is conductively connected to the head end of the tube body of the air circuit tube, the head end of the tube body of the first branch tube passes through the outer covering and is conductively connected to the hollow cavity; the tail end of the tube body of the second branch tube is conductively connected to the head end of the tube body of the drainage tube, the head end of the tube body of the second branch tube passes through the outer covering and is conductively connected to the tail end of the tube body of the drainage tube.

4. The post-pneumonectomy chest cavity filling prosthesis system according to claim 3, characterized in that: The tail end of the tube body of the outer covering is provided with a positioning joint, the tail end of the tube body of the first branch pipe is conductively connected to the tube body head end of the gas pipe through the positioning joint, and the tail end of the tube body of the second branch pipe is conductively connected to the tube body head end of the guide pipe through the positioning joint.

5. The post-pneumonectomy chest cavity filling prosthesis system according to claim 4, characterized in that: The positioning joint is configured as a detachable element.

6. The post-pneumonectomy chest cavity filling prosthesis system according to claim 1, characterized in that: Also includes: A pressure detector, comprising a thin film detection head, a signal line and a detector body; one end of the signal line is connected to the thin film detection head, and the other end passes through the outer layer and is connected to the positioning joint, the signal plug connector; the detector body and the other end of the signal line are connected as a whole; the thin film detection head is connected to the detector body signal through the signal line.

7. The post-pneumonectomy chest cavity filling prosthesis system according to claim 6, characterized in that: The outer wall thickness of the hollow cavity of the support prosthesis is 1-3 mm.

8. The post-pneumonectomy chest cavity filling prosthesis system according to claim 7, characterized in that: The supporting prosthesis is made of medical silica gel.

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