Aortic dissection postoperative paraplegia risk control device

Abstract

The invention discloses an aortic dissection postoperative paraplegia risk control device, and relates to the technical field of medical instruments, the aortic dissection postoperative paraplegia risk control device comprises an insertion tube section, one end of the insertion tube section is connected with a conversion unit, and the outer side wall of the insertion tube section is sleeved with a fixing unit; the conversion unit is respectively communicated with the monitoring unit and the collecting unit, and the conversion unit is electrically connected with the monitoring unit. The aortic dissection postoperative paraplegia risk control device is simple in structure and low in use cost, the economic burden of a patient can be greatly relieved, meanwhile, intervention can be conducted in time when spinal blood supply is abnormal after an aortic dissection operation, paraplegia of the patient is avoided, the survival rate and the survival time of the postoperative patient are guaranteed, and the risk of paraplegia of the patient is reduced. The prognosis life quality of the patient is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for controlling the risk of paraplegia after aortic dissection surgery. Background Art

[0002] The arterial wall of the human body is composed of an inner layer, a middle layer and an outer layer. When the inner layer of the aorta is accidentally torn, the blood in the cavity will enter the middle layer of the arterial wall through the tear in the inner layer, and then form a dissection hematoma. The hematoma will gradually expand along the long axis of the blood vessel, forming a serious aortic disease with pathological changes in the true and false lumens of the artery, namely aortic dissection.

[0003] Paraplegia after aortic dissection surgery can lead to decreased mobility and long-term bed rest, as well as serious complications such as lung infection, decreased gastrointestinal function, and lower extremity venous thromboembolism, which greatly prolongs the hospital stay after aortic dissection surgery and even significantly increases the postoperative mortality rate. The incidence of paraplegia after aortic dissection surgery reported by various centers ranges from 0.4% to 18%, and the main reasons are: severe compression of the true lumen before surgery; the opening of the intercostal arteries supplying the spinal cord into the false lumen; and early extensive thrombosis of the false lumen after surgery.

[0004] When paraplegia occurs as a complication after aortic dissection surgery in clinical practice, it is necessary to reverse spinal cord ischemia and improve spinal cord blood supply.

[0005] How to develop a risk control device for paraplegia after aortic dissection surgery, carry out preventive treatment after aortic dissection surgery, timely regulate the pressure inside the spine, and prevent complications of paraplegia caused by spinal cord ischemia after aortic dissection surgery has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0006] The purpose of the present invention is to provide a device for controlling the risk of paraplegia after aortic dissection surgery to solve the problems listed in the background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The device for controlling the risk of paraplegia after aortic dissection surgery of the present invention comprises an insertion tube segment, one end of which is connected to a conversion unit, and a fixing unit is sleeved on the outer side wall of the insertion tube segment;

[0009] The conversion unit is communicated with the monitoring unit and the collecting unit respectively, and the conversion unit is electrically connected with the monitoring unit.

[0010] Preferably, a one-way valve is installed on the insertion pipe section.

[0011] Preferably, the fixing unit includes a medical tape and a guide tube, a through hole is provided in the middle of the medical tape, one end of the guide tube is connected to the through hole via an elbow, and a side wall of the guide tube is fixedly connected to the non-adhesive surface of the medical tape.

[0012] Preferably, the conversion unit comprises a motor and a three-way valve, the working end of the motor is fixedly connected to the three-way valve, and the housing of the motor is fixedly connected to the three-way valve housing of the three-way valve.

[0013] Preferably, the three-way valve further comprises a valve core, the valve core is rotatably connected to the three-way valve housing, and the three-way valve housing is provided with ports A, B and C.

[0014] Preferably, the inserted pipe section is connected to port A of the three-way valve housing.

[0015] Preferably, the monitoring unit comprises a pressure sensor and a connecting pipe, one end of the connecting pipe is connected to the pressure sensor, and the other end of the connecting pipe is connected to the B port of the three-way valve housing.

[0016] Preferably, the collecting unit comprises a collecting pipe section and a collecting bag, one end of the collecting pipe section is connected to the C port of the three-way valve housing, and the other end of the collecting pipe section is connected to the collecting bag.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are:

[0018] The device for controlling the risk of paraplegia after aortic dissection surgery of the present invention is inserted into the patient's spine through the insertion tube segment 1 and fixed to the patient's waist through a fixing unit. The cerebrospinal fluid flows to the monitoring unit through the conversion unit for monitoring. The monitoring unit converts the pressure signal into an electrical signal and sends it to the PLC controller. The PLC controller analyzes and processes the received signal. When it is monitored that the pressure of the patient's cerebrospinal fluid is higher than a preset range value, the PLC controller sends a working signal to the conversion unit. The conversion unit works to connect the collecting unit with the conversion unit to achieve diversion and pressure reduction operations, thereby avoiding complications after aortic dissection surgery. The device has a simple structure and low use cost, which can greatly reduce the economic burden of patients. At the same time, it can timely intervene in abnormal spinal blood supply after aortic dissection surgery, avoid paraplegia in patients, ensure the survival rate and survival time of patients after surgery, and improve the prognosis and quality of life of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional schematic diagram of the risk control device for paraplegia after aortic dissection surgery of the present invention;

[0021] Figure 21 is a cross-sectional view of the three-way valve of the present invention (working state 1);

[0022] Figure 3 This is a cross-sectional view of the three-way valve of the present invention (working state two).

[0023] Explanation of the accompanying drawings: 1. Insertion tube section; 2. Medical tape; 3. Guide tube; 4. One-way valve; 5. Pressure sensor; 6. Connecting tube; 7. Motor; 8. Three-way valve; 801. Valve core; 802. Three-way valve housing; 9. Collection tube section; 10. Collection bag. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figure 1-3 As shown, the device for controlling the risk of paraplegia after aortic dissection surgery comprises an insertion tube segment 1, one end of the insertion tube segment 1 is connected to a conversion unit, and a fixing unit is sleeved on the outer side wall of the insertion tube segment 1;

[0026] The conversion unit is communicated with the monitoring unit and the collection unit respectively, and the conversion unit is electrically connected with the monitoring unit;

[0027] When working, the insertion tube segment 1 is inserted into the patient's spine and fixed to the patient's waist through the fixing unit. The cerebrospinal fluid flows to the monitoring unit through the conversion unit for monitoring. The monitoring unit converts the pressure signal into an electrical signal and sends it to the PLC controller. The PLC controller analyzes and processes the received signal. When the pressure of the patient's cerebrospinal fluid is higher than the preset range value, the PLC controller sends a working signal to the conversion unit. The conversion unit works to connect the collection unit with the conversion unit, thereby realizing the diversion and decompression operation and avoiding complications after aortic dissection surgery.

[0028] The device has a simple structure and low cost of use, which can greatly reduce the economic burden on patients. At the same time, it can timely intervene in abnormal spinal blood supply after aortic dissection surgery, avoid paraplegia in patients, ensure the survival rate and survival time of patients after surgery, and improve the prognosis and quality of life of patients.

[0029] Specifically, a one-way valve 4 is installed on the insertion tube section 1, so that the cerebrospinal fluid can only flow out of the body, preventing the cerebrospinal fluid from flowing back and avoiding the induction of cerebrospinal fluid or intracranial infection.

[0030] Specifically, the fixing unit includes a medical tape 2 and a guide tube 3, a through hole is provided in the middle of the medical tape 2, one end of the guide tube 3 is connected to the through hole through an elbow, and the side wall of the guide tube 3 is fixedly connected to the non-adhesive surface of the medical tape 2;

[0031] Medical tape is pasted on the patient's wound, and the inserted tube section is fixed at the free end of the guide tube to prevent the inserted tube section from falling out. At the same time, the setting of the guide tube can reduce the bending of the inserted tube section, which can ensure the monitoring accuracy of the monitoring unit on the one hand, and ensure that the cerebrospinal fluid remains unobstructed when flowing inside the inserted tube section on the other hand.

[0032] Specifically, the conversion unit includes a motor 7 and a three-way valve 8. The working end of the motor 7 is fixedly connected to the three-way valve 8. The housing of the motor 7 is clamped with the three-way valve housing 802 of the three-way valve 8. In order to reduce the use cost, it is necessary to ensure the relative installation position of the motor and the three-way valve during installation to ensure the accuracy of the motor when rotating forward and reverse.

[0033] The three-way valve 8 further comprises a valve core 801, the valve core 801 is rotatably connected to the three-way valve housing 802, and the three-way valve housing 802 is provided with ports A, B and C;

[0034] The motor adopts a DC motor or a stepper motor, and the forward and reverse rotation requirements are achieved by changing the direction and size of the current or changing the frequency and direction of the pulse signal.

[0035] Specifically, the insertion pipe section 1 is connected to the A port of the three-way valve housing 802, and the monitoring unit includes a pressure sensor 5 and a connecting pipe 6, one end of the connecting pipe 6 is connected to the pressure sensor 5, and the other end of the connecting pipe 6 is connected to the B port of the three-way valve housing 802;

[0036] In the initial state, the valve core makes the A port of the three-way valve housing 802 communicate with the B port of the three-way valve housing 802, so that the pressure sensor can monitor the pressure of the cerebrospinal fluid, and the pressure sensor converts the pressure signal into an electrical signal and feeds it back to the PLC controller for analysis;

[0037] When the monitored cerebrospinal fluid pressure value remains within the preset safety range, the valve core remains fixed. After the doctor's evaluation, if it is determined that the patient's blood supply in the spine is normal after the operation and there is no risk of paraplegia, the inserted tube segment can be pulled out from the spine, which plays a role in preventing the patient from postoperative paraplegia.

[0038] When the patient's spine is ischemic after surgery, causing the cerebrospinal fluid pressure inside the spine to be higher than the preset safety value, the PLC controller sends a warning signal to the doctor's control terminal. After sending the warning signal for a period of time, the PLC controller automatically controls the valve core to rotate or the medical staff manually controls it at the patient's bedside, so that the A port of the three-way valve housing 802, the B port of the three-way valve housing 802 and the C port of the three-way valve housing 802 are interconnected, and the cerebrospinal fluid inside the spine is exported to the collection unit for collection, thereby reducing the pressure inside the spine, improving the blood supply inside the spine, preventing compression of the lower limb nerves and paraplegia, and being able to intervene in time when arterial bleeding occurs after surgery and the blood supply to important organs of the lower limbs or abdomen is blocked, thereby reducing the complications of aortic dissection and improving the patient's survival rate and prognosis quality of life.

[0039] Specifically, the collecting unit includes a collecting pipe segment 9 and a collecting bag 10 , one end of the collecting pipe segment 9 is connected to the C port of the three-way valve housing 802 , and the other end of the collecting pipe segment 9 is connected to the collecting bag 10 .

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for controlling the risk of paraplegia after aortic dissection surgery, characterized in that: It comprises an insertion pipe section (1), one end of the insertion pipe section (1) is connected to a conversion unit, and a fixing unit is sleeved on the outer side wall of the insertion pipe section (1); The conversion unit is communicated with the monitoring unit and the collecting unit respectively, and the conversion unit is electrically connected with the monitoring unit.

2. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 1, characterized in that: A one-way valve (4) is installed on the insertion pipe section (1).

3. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 1, characterized in that: The fixing unit comprises a medical tape (2) and a guide tube (3); a through hole is provided in the middle of the medical tape (2); one end of the guide tube (3) is connected to the through hole via an elbow; and the side wall of the guide tube (3) is fixedly connected to the non-adhesive surface of the medical tape (2).

4. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 1, characterized in that: The conversion unit comprises a motor (7) and a three-way valve (8), the working end of the motor (7) is fixedly connected to the three-way valve (8), and the housing of the motor (7) is fixedly connected to the three-way valve housing (802) of the three-way valve (8).

5. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 4, characterized in that: The three-way valve (8) further comprises a valve core (801), wherein the valve core (801) is rotatably connected to the three-way valve housing (802), and the three-way valve housing (802) is provided with ports A, B and C.

6. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 4, characterized in that: The inserted pipe section (1) is in communication with port A of the three-way valve housing (802).

7. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 6, characterized in that: The monitoring unit comprises a pressure sensor (5) and a connecting pipe (6), one end of the connecting pipe (6) is connected to the pressure sensor (5), and the other end of the connecting pipe (6) is connected to the B port of the three-way valve housing (802).

8. The device for controlling the risk of paraplegia after aortic dissection surgery according to claim 6, characterized in that: The collecting unit comprises a collecting pipe section (9) and a collecting bag (10); one end of the collecting pipe section (9) is connected to the C port of the three-way valve housing (802), and the other end of the collecting pipe section (9) is connected to the collecting bag (10).

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