CN103622729B - The power set except device are got for thrombosis - Google Patents

Abstract

The invention discloses and a kind ofly get power set except device for thrombosis, it comprises pedestal and is arranged on fluid infusion pump on pedestal, takes out bolt pump, motor and control panel; Fluid infusion pump front end is connected with and is connected except device for getting with thrombosis and is got by thrombosis except device is to the fluid infusion syringe of human vein liquid make-up, take out bolt pump front end be connected with for thrombosis get to be connected except device and got by thrombosis except device, the thrombosis in human vein is extracted out take out bolt syringe, motor driving shaft front end is provided with for getting with thrombosis the square hole that the transmission square shaft except device is connected, and motor driving shaft outer race has for getting with thrombosis the union joint that the quick change union joint except device is connected.The present invention is applicable to as deep venous thrombosis is got except device provides power, and three power are the guarantee of work safety and stability of operation process independently.

Description

Power Units for Thrombectomy Devices

technical field

The invention relates to a medical device, in particular to a power device for a thrombus remover.

Background technique

Due to changes in dietary structure and other reasons, the incidence of thrombosis in people is on the rise, especially the number of cases of deep vein thrombosis in the lower extremities is increasing. Thrombus deposition in veins can cause blood flow disturbance and stasis, resulting in thrombophlebitis within the veins. For patients with chronic iliofemoral vein thrombosis, venous thrombosis can lead to long-term swelling of the lower limbs, varicose veins, and ulceration. In addition, after the venous thrombus falls off, it may also transfer to other parts and organs of the body, resulting in serious complications. For example, a thrombus in a vein travels through the vein and deposits in the lung, causing a pulmonary embolism that can lead to death. Therapeutic methods for thrombosis include: 1. Internal medicine treatment, mainly adopting anticoagulant, thrombolytic and other drug treatments. Occasionally, bleeding or hemorrhage is associated with medical treatment; in addition, in some urgent cases, the introduction of medical treatment is too slow. 2. Surgical treatment, an incision is made in the blood vessel where the thrombus is deposited, and the thrombus is taken out through the incision. Surgical treatment is difficult and traumatic for patients with deep vein thrombosis; moreover, the thrombus removal process itself may cause residual thrombus to enter the lungs, causing fatal pulmonary embolism. 3. Interventional treatment, percutaneous puncture can be used to introduce special minimally invasive interventional surgical instruments into the vein through a tiny incision on the patient's body surface, and directly contact thrombolysis and thrombus removal under X-ray fluoroscopy. Compared with conventional surgical treatment, interventional treatment is less invasive and less affected by the depth of venous thrombosis.

It is found through document retrieval of the prior art that the Chinese utility model patent "Venous Thrombectomy Tube" (authorized announcement number CN2659350Y) with the patent number ZL200320121061.0 discloses a vein thrombus retrieval tube. This patent consists of 3 parts: a stylet, a thrombus removal tube, and a balloon. The advantage is that deep vein thrombosis can be removed from the extremities without damaging the venous valve. The Chinese utility model patent "vascular thrombus retrieval catheter" (authorized announcement number CN2268496Y) with the patent number ZL96245233.5 discloses a blood vessel thrombus retrieval catheter. The patent is actually a dual-lumen catheter, one of which is connected to a balloon for supplying liquid or gas to inflate the balloon; the other lumen is used for blood jet flow. The advantage of this patent is that it can automatically judge whether the tip of the catheter has reached the position of the thrombus. These two patents all adopt a balloon to perform the function of scraping thrombus. For some old thrombus, it may be difficult to achieve one-time scraping, so that the catheter needs to be reinserted, and the residual thrombus is scraped off again after the balloon is inflated, which can easily lead to some broken thrombus remaining in the blood vessel and cannot be completely removed take out.

The Chinese utility model patent "Sliding Combined Catheter for Treating Thrombosis" (authorized announcement number CN201192520Y) with patent number ZL200820098250.3 discloses a sliding combined catheter for treating thrombus. This patent consists of a core tube and a sleeve tube, and the head ends of the core tube and the sleeve tube are connected with a balloon respectively. This patent intends to scrape off the thrombus by dragging the balloon at the head end of the cannula back and forth. The advantage of this patent is that two balloons are used to respectively realize the functions of temporary occlusion of blood vessels and scraping of thrombus, thereby reducing the probability of remaining broken small thrombus.

The patent No. ZL200620164685.4 of Zhongwei utility model patent "thrombosis remover" (authorized announcement number is CN201042451Y) discloses a kind of thrombus retriever. The patent adopts an umbrella structure made of memory alloy wire to scrape thrombus, and uses a sleeve to discharge the scraped thrombus out of the body. The patent uses a metal wire instead of a balloon for thrombus scraping, which can improve the curettage effect. However, the wire also has the potential to scratch the lining of the blood vessel.

The above-mentioned prior art still has deficiencies in the following three aspects: 1. The effect of removing thrombus or old thrombus is not ideal, and the removal rate is low; 2. The intima of the blood vessel is damaged during thrombus removal, and secondary thrombus is easily formed ;3. Part of the thrombus fragments produced during the thrombus removal process remains in the blood and enters the bypass arteries and organs, which may lead to embolism or functional failure of related organs; anemia.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems, and to provide a power device for a thrombus remover, which is the same as the applicant's previous application "local circulation thrombus remover" and "used for deep A device used in conjunction with the quick-change connector connecting the venous thrombus remover to the power unit.

In order to achieve the above object, the present invention adopts the following technical solutions: a power device for a thrombus remover, including a base and a fluid replenishment pump installed on the base, a thrombus pump, a motor and a control panel; The front end of the pump is connected with a rehydration syringe for connecting with the thrombus remover and supplying liquid to the human vein through the thrombus remover. The thrombus withdrawing syringe has a square hole connected to the drive square shaft of the thrombus remover at the front end of the motor drive shaft, and a connector for connecting with the quick-change connector of the thrombus remover is sheathed on the periphery of the motor drive shaft.

The connecting head is installed on the base and sleeved on the periphery of the motor drive shaft, including a conical body, and a circle for axially positioning and connecting with the quick-change connecting head of the thrombus remover is provided at the rear of the conical body. The ring step is provided with a cross-shaped notch on the front part of the conical body for radial positioning connection with the quick-change connector of the thrombus remover.

The control panel is provided with displays for displaying the rotational speed of the motor, the pressure and flow of the infusion pump and the spigot pump, as well as a power switch button, a running button and a motor speed adjustment knob.

The power device for the thrombus remover of the present invention is used together with the thrombus remover to scrape thrombus thoroughly, prevent damage to the venous intima, completely expel thrombus from the body, and avoid residual small thrombus blocks in the human body. The invention is suitable for the scraping of the thrombus in the veins of the extremities of the human body, and is especially suitable for scraping the deep thrombus in the femoral vein of the human body by adopting percutaneous minimally invasive surgery technology.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a power device used in a thrombus remover according to the present invention;

Fig. 2 is a top structural schematic view of the power device used in the thrombus remover according to the present invention;

Fig. 3 is a schematic diagram of the front view of the connector in the present invention;

Fig. 4 is a schematic structural diagram of a top view of the head of the connector in the present invention.

detailed description

Referring to Fig. 1, refer to Fig. 2-Fig. 4 together, the power device for the thrombus remover of the present invention includes a base 1 and a rehydration pump 2 installed on the base, a thrombus pump 3, a motor 4 and a control panel 5. The front end of the infusion pump is connected with a rehydration syringe 6 for connecting with the thrombus remover and replenishing liquid to the human vein through the thrombus remover. The thrombus withdrawing syringe 7 is used to extract the thrombus in the vein of the human body. The front end of the motor drive shaft is provided with a square hole for connecting with the drive shaft of the thrombus remover. Connectors 8 to which the connectors are connected.

The connector 8 in the present invention is installed on the base 1 and is sleeved on the periphery of the motor drive shaft, and includes a conical body, and the rear part of the conical body is provided with a quick-change connector axially connected with the thrombus remover. The annular step 81 for positioning connection is provided with a cross-shaped notch 82 for radial positioning connection with the quick-change connector of the thrombus remover at the front part of the conical body.

The control panel 5 in the present invention is provided with a display 51 for displaying the rotational speed of the motor, the pressure and flow of the infusion pump and the spigot pump, as well as a power switch button 52 , a running button 53 and a motor speed adjustment knob 54 .

The present invention can well provide stable power for the thrombectomy system, and cooperate well with the local circulation thrombus remover and deep vein thrombus remover that the applicant applied for earlier with quick-change connectors to complete the operation. The invention is suitable for providing power for the deep vein thrombus remover, and the independent work of the three powers ensures the safety and stability of the operation process.

Claims (1)

1. A power unit for a thrombus remover, characterized in that it comprises a base and a liquid infusion pump installed on the base, a thrombus pump, a motor and a control panel; the front end of the liquid infusion pump is connected with a A rehydration syringe that is connected to the thrombus remover and replenishes liquid to the human vein through the thrombus remover. The front end of the thrombus pump is connected with a thrombus withdrawal syringe that is used to connect with the thrombus remover and draw out the thrombus in the human vein through the thrombus remover. The front end of the motor drive shaft is provided with a square hole for connecting with the transmission square shaft of the thrombus remover, and the periphery of the motor drive shaft is covered with a connector for connecting with the quick-change connector of the thrombus remover; The connecting head is installed on the base and sleeved on the periphery of the motor drive shaft, including a conical body, and a circle for axially positioning and connecting with the quick-change connecting head of the thrombus remover is provided at the rear of the conical body. The ring step is provided with a cross-shaped notch at the front of the conical body for radial positioning connection with the quick-change connector of the thrombus remover; The control panel is provided with displays for displaying the rotational speed of the motor, the pressure and flow of the infusion pump and the spigot pump, as well as a power switch button, a running button and a motor speed adjustment knob.