Myocardial rotary cutting system

Abstract

A myocardial rotary cutting system (100, 200, 300, 400, 500), comprising a rotary cutting assembly (1). The rotary cutting assembly (1) comprises a rotary cutting knife (1-4), and the rotary cutting knife (1-4) comprises one of a laser cutting knife, a spiral cutting knife, and an arc-shaped cutting knife, which are suitable for precise hemostatic surgical scenarios, surgical scenarios in which tissue needs to be continuously pushed, and surgical scenarios in which tissue does not need to be continuously pushed. The myocardial rotary cutting system (100, 200, 300, 400, 500) can achieve continuous resection under minimally invasive incision conditions, accurately resect myocardial tissue, and reduce complications.

Description

Myocardial rotary cutting system

[0001] The present application claims priority to the invention patent applications with application number CN202411293063.0, invention name "Electric continuous spiral resection type myocardial rotary cutting system", application number CN202411293054.1, invention name "Electric continuous myocardial tissue resection system", application number CN202411293061.1, invention name "Electric continuous laser resection myocardial rotary cutting system", application number CN202411293057.5, invention name "Mechanical rotary cutting myocardial resection system with barbed puncture needle", application number CN202411293056.0, invention name "Myocardial rotary cutting system with barbed puncture needle" filed in the China Patent Office on September 14, 2024, the contents of which are hereby incorporated by reference in their entirety. TECHNICAL FIELD

[0002] The present application belongs to the technical field of medical devices, and in particular relates to a myocardial rotary cutting system. BACKGROUND

[0003] Hypertrophic cardiomyopathy (HCM) is reported to have symptoms such as exertional dyspnea, chest pain, palpitations, and syncope in patients, and even severe complications, leading to worsening of the disease or death. Although the incidence of sudden cardiac death is only 1%, it is still one of the main causes of death in HCM patients, especially in young patients, and is one of the main causes of sudden death in young people and athletes.

[0004] Hypertrophic obstructive cardiomyopathy is a genetic heart disease characterized by significant thickening of the interventricular septum. There are currently four main treatment methods: drug therapy, alcohol interventricular septal ablation, traditional open chest surgery, and radiofrequency ablation. However, these surgeries have obvious shortcomings. Drug therapy can only provide symptomatic relief to varying degrees, but it cannot fundamentally solve the obstruction; open chest surgery is high-risk and causes significant harm to the human body; alcohol interventricular septal ablation and radiofrequency ablation are associated with a series of complications.

[0005] Therefore, patients with hypertrophic obstructive cardiomyopathy are like a "time bomb" hidden in the body, but they are afraid of the risks of surgery and do not dare to have the surgery to eradicate it. They rely only on medication to relieve symptoms, and the psychological pressure of sudden death is constantly looming over them, constantly living in fear of the unknown, which seriously affects their quality of life.

[0006] The main disadvantages of the prior art are as follows:

[0007] Drug therapy: the commonly used drugs recommended by the guidelines at present include: beta blockers, non-dihydropyridine calcium channel blockers (CCBs) and antiarrhythmic drug propafenone, and the latest drug mavacamten. These drugs can bring different degrees of symptom relief, but cannot fundamentally solve the obstruction.

[0008] Alcohol septal ablation: using anhydrous alcohol (96%-99% ethanol) to chemically ablate and block septal branch arteries, causing myocardial necrosis in the hypertrophic area, thereby eliminating septal hypertrophy and reducing left ventricular outflow tract obstruction. However, the acute complications of this surgery include: atrioventricular block, unintended distal myocardial infarction, ventricular arrhythmia, coronary artery dissection, cardiac tamponade and pulmonary embolism; conduction system injury is the main complication of alcohol ablation, and the incidence of complete atrioventricular block during surgery is 20%. However, 5%-15% of patients will relapse atrioventricular block, resulting in the need for permanent pacemaker implantation. Inadequate balloon occlusion of septal branches can lead to alcohol leakage into the left main stem and right coronary artery, and alcohol leakage can cause ventricular fibrillation and distal myocardial infarction.

[0009] Surgery: traditional open chest surgery has the disadvantages of large trauma, limited surgical field, high risk, slow recovery, etc., including: classic septal myectomy (Morrow surgery), modified and expanded Morrow surgery, left ventricular cavity obstruction through the mitral valve (combined with mitral valve disease requiring mitral valve treatment), transapical myectomy (suitable for patients with apical hypertrophy or combined with apical hypertrophy leading to left ventricular cavity contraction and diastolic dysfunction), transright ventricular myectomy (combined with right ventricular wall hypertrophy); classic septal myectomy (Morrow surgery), modified and expanded Morrow surgery; these surgeries have many shortcomings, such as: 1. Cardiac arrest, extracorporeal circulation system assistance, preoperative complex requirements; 2. Open chest large incision, open heart for septal hypertrophy myectomy, large trauma to the patient's body, limited to the patient's body. Adaptation group; 3. The amount of myocardial resection is difficult to grasp, and there is a risk of resection amount not reaching the treatment goal or excessive resection causing complications, which affects the benefit group; 4. After the surgery, the heart has a risk of necrosis and cannot restart due to long-term cardiac arrest; 5. Due to the opening of the heart, the recovery time is long and the risk of complications is high; 6. Double-handed operation, inaccurate positioning, and related risks such as displacement difference.

[0010] Interventricular septum radiofrequency ablation: the operation is performed through a minimally invasive intervention, and the operation is precisely punctured to the hypertrophic part of the interventricular septum. The radiofrequency ablation electrode and the radiofrequency ablation system are adjusted to transmit radiofrequency energy to the hypertrophic myocardium, so as to cause the myocardial cells to dehydrate and necrosis, so as to achieve the effect of relieving left ventricular outflow tract obstruction, but also accompanied by a series of complications, chest pain: chest pain occurs when the balloon is blocked during the operation, and painkillers are given; conduction block: right bundle branch block is the most common complication, and most of them can be restored by temporary pacing; ventricular arrhythmia: occurs within 24 hours after the operation, and a small number of patients need to be electrically reset; heart failure, hypotension, etc. TECHNICAL PROBLEM

[0011] How to achieve continuous resection, precise resection of myocardial tissue and reduce complications under the condition of minimally invasive incision. TECHNICAL SOLUTION

[0012] In view of the problems existing in the prior art myocardial tissue resection instrument, the application provides a myocardial rotary cutting system, which can achieve continuous resection, precise resection of myocardial tissue and reduce complications under the condition of minimally invasive incision.

[0013] In order to achieve the above purpose, the application provides a myocardial rotary cutting system, which comprises a rotary cutting assembly, and the rotary cutting assembly comprises a rotary cutting knife, and the rotary cutting knife comprises one of a laser cutting knife, a spiral cutting knife and an arc-shaped cutting knife.

[0014] The myocardial rotary cutting system with the laser cutting knife is suitable for precise hemostasis operation scene;

[0015] The myocardial rotary cutting system with the spiral cutting knife is suitable for operation scene requiring continuous pushing of tissue; and

[0016] The myocardial rotary cutting system with the arc-shaped cutting knife is suitable for operation scene not requiring continuous pushing of tissue.

[0017] In some embodiments of the application, the rotary cutting assembly further comprises a first sleeve, and the first sleeve is formed with a resection window in communication with the internal cavity of the rotary cutting assembly;

[0018] The myocardial rotary cutting system further comprises a negative pressure assembly in communication with the internal cavity of the resection assembly;

[0019] Under the action of the negative pressure generated by the negative pressure assembly, the myocardial tissue to be resected is adsorbed at the resection window; under the action of external force, the rotary cutting knife is rotated based on the axial direction of the resection assembly to resect the myocardial tissue to be resected.

[0020] In some embodiments of the application, the rotary cutting assembly further comprises a second sleeve connected with the first sleeve;

[0021] When the first sleeve is rotated relative to the second sleeve under the action of an external force to the first position, the resection window is in an open state; when the first sleeve is rotated relative to the second sleeve under the action of an external force to the second position, the second sleeve blocks the resection window, and the resection window is in a closed state.

[0022] In some embodiments of the present application, the first sleeve is sleeved on the outer wall of the second sleeve or the second sleeve is sleeved on the outer wall of the first sleeve; and / or

[0023] One of the first sleeve and the second sleeve is rotated, and the other is stationary.

[0024] In some embodiments of the present application, the myocardial resection system further comprises:

[0025] The first driving assembly is connected with one of the first sleeve and the second sleeve to drive one of the first sleeve and the second sleeve to rotate relative to the other based on the axial rotation of the resection assembly; and

[0026] The second driving assembly is connected with the rotary cutting knife to drive the rotary cutting knife to rotate based on the axial rotation of the resection assembly.

[0027] In some embodiments of the present application, the myocardial resection system further comprises:

[0028] The electronic control assembly is connected with the first driving assembly, the second driving assembly and the negative pressure assembly respectively to control the first driving assembly, the second driving assembly and the negative pressure assembly to work in real time.

[0029] In some embodiments of the present application, the second sleeve is sleeved on the outside of the first sleeve, the rotary cutting knife is arranged at one end of the second sleeve, the first driving assembly and the second driving assembly are the same driving assembly, and under the driving of the first driving assembly or the second driving assembly, the rotary cutting knife switches between the open state and the closed state of the resection window during the rotary cutting.

[0030] In some embodiments of the present application, the first driving assembly or the second driving assembly comprises a first driving motor, a first gear and a second gear, the output shaft of the first driving motor is connected with the first gear, the first gear and the second gear are arranged in meshing, and one end of the second sleeve is connected with the second gear.

[0031] In some embodiments of the present application, the second sleeve is sleeved on the outside of the first sleeve, the first driving assembly comprises a first driving motor, a first gear and a second gear, the output shaft of the first driving motor is connected with the first gear, the first gear and the second gear are arranged in meshing, one end of the second sleeve is connected with the second gear, and the other end of the second sleeve is sleeved on the first sleeve; and / or

[0032] The second driving assembly comprises a second driving motor, a third gear, a fourth gear and a first connecting shaft. The output shaft of the second driving motor is connected with the third gear. The third gear and the fourth gear are arranged in gear engagement. One end of the first connecting shaft is connected with the fourth gear. The other end of the first connecting shaft is connected with the rotary cutting knife. The rotary cutting knife is a laser cutting knife and is used for exciting a laser energy column.

[0033] In some embodiments of the present application, the first sleeve is arranged outside the second sleeve. The rotary cutting knife is arranged at one end of the second sleeve.

[0034] The myocardial rotary cutting system further comprises a mechanical driving assembly connected with the second sleeve to drive the second sleeve to rotate. Under the driving of the mechanical driving assembly, the cutting window is switched between the open state and the closed state. The rotary cutting knife performs the rotary cutting operation.

[0035] In some embodiments of the present application, the myocardial rotary cutting system further comprises a housing. The mechanical driving assembly comprises a trigger, a first bevel gear, a hinge, a rack and a second bevel gear. The trigger is connected with the hinge. The hinge is slidingly connected with the rack and is rotationally connected with the housing. The rack is meshingly connected with the second bevel gear. The second bevel gear is meshingly connected with the first bevel gear. The first bevel gear is connected with the end of the second sleeve away from the rotary cutting knife. The hinge is fixedly connected with the housing.

[0036] The trigger drives the hinge to move. The hinge drives the rack to move. The rack drives the second bevel gear to move. The second bevel gear drives the first bevel gear to rotate the first sleeve.

[0037] In some embodiments of the present application, the myocardial rotary cutting system further comprises:

[0038] The tissue locking member is arranged in the inner cavity of the rotary cutting assembly and is used for reciprocating along the axial direction of the rotary cutting assembly under the action of an external force to fix the myocardial tissue to be cut arranged at the cutting window.

[0039] The mechanical driving assembly is connected with the tissue locking member and is used for driving the tissue locking member to reciprocate along the axial direction of the rotary cutting assembly.

[0040] In some embodiments of the present application, the tissue locking assembly further comprises a third sleeve. The tissue locking member is arranged in the third sleeve. The third sleeve has a first limiting groove. The tissue locking member is limitingly connected with the trigger through a limiting pin. When the trigger rotates, the limiting pin slides in the first limiting groove along the axial direction of the rotary cutting assembly to drive the tissue locking member to move along the axial direction of the rotary cutting assembly.

[0041] In some embodiments of the present application, the third sleeve has a second limiting groove. The tissue locking member is slidingly connected with the second limiting groove through a pin shaft. One end of the pin shaft protrudes from the third sleeve.

[0042] The mechanical driving assembly further comprises a trigger, a first elastic member and a second elastic member, the first elastic member is arranged in the third sleeve, one end of the first elastic member is connected with the third sleeve, and the other end is connected with one end of the tissue locking member away from the resection window, the second elastic member is located above the rack and connected with the trigger, and the trigger is slidingly connected with the third sleeve;

[0043] Under the action of an external force, the trigger can slide on the third sleeve away from the resection window, one end of the pin shaft protruding from the third sleeve abuts against the trigger, the pin shaft and the trigger cooperate to drive the tissue locking member to move away from the resection window, and the first elastic member and the second elastic member are compressed;

[0044] When the action of the external force disappears, the trigger slides on the third sleeve towards the resection window, the trigger is pulled, and under the elastic force of the first elastic member and the second elastic member, the tissue locking member moves towards the resection window and locks the myocardial tissue to be resected.

[0045] In some embodiments of the present application, the mechanical driving assembly further comprises a torsional spring, the torsional spring connects the trigger and the housing and is used to drive the trigger to reset.

[0046] In some embodiments of the present application, the myocardial rotary cutting system further comprises a vacuum pumping assembly, the negative pressure assembly communicates with the vacuum pumping assembly, and the vacuum pumping assembly is arranged on the third sleeve.

[0047] In some embodiments of the present application, the myocardial rotary cutting system further comprises:

[0048] a tissue locking member arranged in the internal cavity of the rotary cutting assembly and used to reciprocate along the axial direction of the rotary cutting assembly under the action of an external force to fix the myocardial tissue to be resected adsorbed at the resection window; and

[0049] a third driving assembly connected with the tissue locking member and used to drive the tissue locking member to reciprocate along the axial direction of the rotary cutting assembly.

[0050] In some embodiments of the present application, the tissue locking member is a puncture needle.

[0051] In some embodiments of the present application, the tissue locking member is a puncture needle with a barb structure.

[0052] In some embodiments of the present application, the internal cavity of the rotary cutting assembly is provided with a tissue storage bin;

[0053] The myocardial rotary cutting system further comprises a silica gel wick, the silica gel wick is arranged in the internal cavity of the rotary cutting assembly and located between the tissue storage bin and the resection window, and the puncture needle passes through the silica gel wick;

[0054] Wherein, after the rotation cutting action is completed, the puncture needle returns with the cut myocardial tissue and passes through the silicone hair piece, when the puncture needle is locked again for the myocardial tissue to be cut, the silicone hair piece intercepts the cut myocardial tissue into the tissue storage bin.

[0055] In some embodiments of the present application, the internal cavity of the rotation cutting assembly is provided with a tissue storage bin;

[0056] The myocardial rotation cutting system further comprises:

[0057] a tissue compression assembly arranged in the internal cavity of the rotation cutting assembly and used for compressing the cut myocardial tissue during movement and storing the cut myocardial tissue into the tissue storage bin; and

[0058] a fourth driving assembly connected with the tissue compression assembly and used for driving the compression member to reciprocate along the axial direction of the rotation cutting assembly.

[0059] In some embodiments of the present application, the tissue compression assembly comprises:

[0060] a compression member used for compressing the cut myocardial tissue during movement; and

[0061] a first connecting rod connecting the compression member and the fourth driving assembly.

[0062] In some embodiments of the present application, the tissue compression assembly further comprises:

[0063] a sliding block connected with the end of the connecting rod away from the compression member;

[0064] a second connecting rod connecting the sliding block and the fourth driving assembly;

[0065] Wherein, the sliding block is slidingly connected with the second connecting rod or the second connecting rod is a lead screw, and the fourth driving assembly is used for driving the sliding block to reciprocate on the second connecting rod, so as to drive the compression member to reciprocate along the axial direction of the rotation cutting assembly.

[0066] In some embodiments of the present application, the rotation cutting cutter is a laser cutting cutter, and the laser cutting cutter is used for exciting a laser energy column, and the laser energy column can cut the myocardial tissue to be cut based on the axial rotation of the cutting assembly.

[0067] In some embodiments of the present application, the diameter of the laser energy column is 0.1mm-0.2mm.

[0068] In some embodiments of the present application, the rotation cutting cutter rotates 180° along the axial direction of the rotation cutting assembly each time.

[0069] In some embodiments of the present application, the first sleeve is sleeved on the outer wall of the second sleeve, the end of the second sleeve is connected with a goose nose, and the outer wall of the goose nose is smooth.

[0070] In some embodiments of the present application, the negative pressure assembly comprises a vent tube and a vacuum extraction assembly connected to the vent tube, the vacuum extraction assembly being in communication with the inner cavity of the first cannula through an air nozzle, and the air nozzle is sealed to the inner cavity of the first cannula by a sealing ring.

[0071] In some embodiments of the present application, the rotary cutting cutter comprises a rotary cutting shaft and a blade, the blade is arc-shaped, and the non-helical blade is connected to one end of the rotary cutting shaft, and the other end of the rotary cutting shaft is connected to the second driving assembly.

[0072] In some embodiments of the present application, the myocardial rotary cutting system further comprises:

[0073] The energy supply assembly is connected to the first driving assembly and the second driving assembly respectively to provide energy for the first driving assembly and the second driving assembly.

[0074] In some embodiments of the present application, the myocardial rotary cutting system further comprises:

[0075] The shell, the rotary cutting assembly is arranged outwardly from the shell, and the internal cavity of the rotary cutting assembly is in communication with the internal cavity of the shell;

[0076] The energy supply assembly, the first driving assembly, the second driving assembly and the negative pressure assembly are arranged in the shell.

[0077] In some embodiments of the present application, the surgical procedure of the myocardial rotary cutting system during surgery is in sequence: the resection window is opened, the negative pressure is adsorbed, the tissue is locked, the continuous resection is performed, the tissue is stored, and the assembly is reset.

[0078] In some embodiments of the present application, a high molecular material with barium sulfate is added to the cavity wall of the internal cavity of the rotary cutting assembly.

[0079] In some embodiments of the present application, the tissue compression assembly comprises a compression member and a connecting rod, the compression member is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is connected to the mechanical driving assembly; the compression member is located between the tissue storage bin and the resection window, and the puncture needle is located on one side of the connecting rod.

[0080] In some embodiments of the present application, the compression member has an avoiding slot, the avoiding slot is located on the movement path of the tissue locking member, and is used for avoiding the tissue locking member.

[0081] In some embodiments of the present application, the myocardial tissue to be resected is the myocardial tissue of the interventricular septum below the aortic valve and the myocardial tissue in the apical direction.

[0082] The present application also provides a myocardial rotary cutting system, which comprises a rotary cutting assembly and a rotary cutting driving assembly, the rotary cutting driving assembly is connected to the rotary cutting assembly and is used for driving the rotary cutting assembly to perform a rotary cutting operation.

[0083] The rotation-cut driving assembly includes an electric driving mode or a mechanical driving mode. The electric driving mode is suitable for a surgical scene requiring a first positioning accuracy. The mechanical driving mode is suitable for a surgical scene requiring a second positioning accuracy. The first positioning accuracy is greater than the second positioning accuracy.

[0084] In some embodiments of the present application, the electric driving mode is required for a surgical scene requiring a first response speed. The mechanical driving mode is suitable for a surgical scene requiring a second response speed. The first response speed is greater than the second response speed.

[0085] In some embodiments of the present application, the myocardial rotation-cut system further includes an electronic control assembly. The electronic control assembly one-key controls the start and stop of the rotation-cut driving assembly.

[0086] In some embodiments of the present application, the rotation-cut assembly includes a first sleeve. The first sleeve is formed with a resection window in communication with an internal cavity of the rotation-cut assembly. The rotation-cut assembly further includes a second sleeve connected with the first sleeve in a sleeved manner. The first sleeve is sleeved on the outer wall of the second sleeve or the second sleeve is sleeved on the outer wall of the first sleeve.

[0087] The rotation-cut driving assembly includes a first driving assembly. The first driving assembly drives one of the first sleeve and the second sleeve to rotate relative to the other based on the axial rotation of the resection assembly, so as to switch the resection window between the open state and the closed state.

[0088] The electronic control assembly is signal connected with the first driving assembly and one-key controls the start and stop of the first driving assembly.

[0089] In some embodiments of the present application, the rotation-cut assembly includes a rotation-cut cutter. The rotation-cut driving assembly includes a second driving assembly. The second driving assembly is connected with the rotation-cut cutter to drive the rotation-cut cutter to rotate based on the axial rotation of the resection assembly.

[0090] The electronic control assembly is signal connected with the second driving assembly and one-key controls the start and stop of the second driving assembly.

[0091] In some embodiments of the present application, the myocardial rotation-cut system further includes a negative pressure assembly and a vacuum pumping assembly. The negative pressure assembly is in communication with the internal cavity of the resection assembly and the vacuum pumping assembly, respectively.

[0092] The electronic control assembly is signal connected with the vacuum pumping assembly and one-key controls the start and stop of the vacuum pumping assembly.

[0093] In some embodiments of the present application, the myocardial rotation-cut system further includes a tissue locking member and a third driving assembly. The tissue locking member is arranged in the internal cavity of the rotation-cut assembly and is used to reciprocate along the axial direction of the rotation-cut assembly under the action of an external force, so as to fix the myocardial tissue to be resected which is adsorbed at the resection window. The third driving assembly is connected with the tissue locking assembly and is used to drive the tissue locking member to reciprocate along the axial direction of the rotation-cut assembly.

[0094] The electronic control assembly is signal connected with the third driving assembly and controls the start and stop of the third driving assembly.

[0095] In some embodiments of the present application, the myocardial rotary cutting system further comprises a tissue compression assembly arranged in the internal cavity of the rotary cutting assembly and used for compressing the cut myocardial tissue during movement and storing the cut myocardial tissue into the tissue storage bin, and a fourth driving assembly connected with the tissue compression assembly and used for driving the compression member to reciprocate along the axial direction of the rotary cutting assembly.

[0096] The electronic control assembly is signal connected with the fourth driving assembly and controls the start and stop of the fourth driving assembly.

[0097] In some embodiments of the present application, the tissue locking member is a puncture needle.

[0098] In some embodiments of the present application, the tissue locking member is a puncture needle with a barb structure.

[0099] In some embodiments of the present application, the internal cavity of the rotary cutting assembly is provided with a tissue storage bin.

[0100] The myocardial rotary cutting system further comprises a silica gel wick arranged in the internal cavity of the rotary cutting assembly and located between the tissue storage bin and the cutting window, and the puncture needle passes through the silica gel wick.

[0101] After the rotary cutting action is completed, the puncture needle returns with the cut myocardial tissue and passes through the silica gel wick, and when the puncture needle locks the myocardial tissue to be cut again, the silica gel wick traps the cut myocardial tissue into the tissue storage bin.

[0102] In some embodiments of the present application, the tissue compression assembly comprises:

[0103] a compression member used for compressing the cut myocardial tissue during movement; and

[0104] a first connecting rod connecting the compression member and the fourth driving assembly.

[0105] In some embodiments of the present application, the tissue compression assembly further comprises:

[0106] a sliding block connected with the end of the connecting rod away from the compression member;

[0107] a second connecting rod connecting the sliding block and the fourth driving assembly;

[0108] The sliding block is slidingly connected with the second connecting rod or the second connecting rod is a lead screw, and the fourth driving assembly is used for driving the sliding block to reciprocate on the second connecting rod so as to drive the compression member to reciprocate along the axial direction of the rotary cutting assembly.

[0109] In some embodiments of the present application, the first sleeve is sleeved outside the second sleeve, and the rotary cutting cutter is arranged at one end of the second sleeve;

[0110] The myocardial rotary cutting system further comprises a housing, and the mechanical driving assembly comprises a trigger, a first bevel gear, a hinge, a rack, and a second bevel gear. The trigger is connected with the hinge, the hinge is slidingly connected with the rack and rotatably connected with the housing, the rack is meshingly connected with the second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the first bevel gear is connected to the end of the second sleeve away from the rotary cutting cutter, and the hinge is fixedly connected with the housing.

[0111] The trigger drives the hinge to move, the hinge drives the rack to move, the rack drives the second bevel gear to move, and the second bevel gear drives the first bevel gear to rotate the first sleeve through linkage.

[0112] In some embodiments of the present application, the myocardial rotary cutting system further comprises:

[0113] The tissue locking member is arranged in the inner cavity of the rotary cutting assembly and is used to reciprocate along the axial direction of the rotary cutting assembly under the action of an external force to fix the myocardial tissue to be removed which is adsorbed at the resection window.

[0114] The mechanical driving assembly is connected with the tissue locking member and is used to drive the tissue locking member to reciprocate along the axial direction of the rotary cutting assembly.

[0115] In some embodiments of the present application, the tissue locking assembly further comprises a third sleeve, and the tissue locking member is arranged in the third sleeve. The third sleeve has a first limiting groove, the tissue locking member is limitedly connected with the trigger through a limiting pin, and when the trigger rotates, the limiting pin slides in the first limiting groove along the axial direction of the rotary cutting assembly to drive the tissue locking member to move along the axial direction of the rotary cutting assembly.

[0116] In some embodiments of the present application, the third sleeve has a second limiting groove, the tissue locking member is slidingly connected with the second limiting groove through a pin shaft, and one end of the pin shaft protrudes from the third sleeve.

[0117] The mechanical driving assembly further comprises a trigger, a first elastic member, and a second elastic member. The first elastic member is arranged in the third sleeve, one end of the first elastic member is connected with the third sleeve, and the other end is connected with one end of the tissue locking member away from the resection window. The second elastic member is located above the rack and is connected with the trigger, and the trigger is slidingly connected with the third sleeve.

[0118] Under the action of an external force, the trigger can slide on the third sleeve in a direction away from the resection window, one end of the pin shaft protruding from the third sleeve abuts against the trigger, the pin shaft and the trigger cooperate to drive the tissue locking member to move in a direction away from the resection window, and the first elastic member and the second elastic member are compressed.

[0119] When the external force disappears, the trigger slides on the third sleeve towards the direction close to the resection window, the trigger is pulled, and the first elastic member and the second elastic member move towards the direction close to the resection window under the elastic force and lock the myocardial tissue to be resected.

[0120] In some embodiments of the present application, the mechanical driving assembly further comprises a torsional spring connected between the trigger and the housing and configured to drive the trigger to reset. Advantages

[0121] Compared with the prior art, the embodiment of the present application provides a myocardial resection system with a mechanical rotary cutting barbed puncture needle, which has the following advantages:

[0122] (1) The continuous laser resection myocardial tissue resection electric system provided by the present application adopts vacuum negative pressure to adsorb the tissue into the rotary cutting cavity, which can prevent the resected tissue from forming artificial thrombus and its complications, ensure the integrity of the target resected tissue and the smoothness of the incision, and avoid the wrinkles of the incision causing complications.

[0123] (2) In the continuous laser resection myocardial tissue resection electric system provided by the present application, each functional component is electrically connected to each other, and all have automatic reset function, thereby introducing automatic compression and storage of the tissue, realizing simultaneous in-vivo continuous compression and storage of the resected target tissue, realizing continuous myocardial resection until the treatment effect is achieved, further increasing the operation efficiency, reducing the risk of bleeding, and increasing the success rate of operation.

[0124] (3) In the continuous myocardial tissue resection system provided by the present application, each functional component is electrically connected to each other, and all have automatic reset function, thereby introducing automatic compression and storage of the tissue, realizing simultaneous in-vivo continuous compression and storage of the resected target tissue, realizing continuous myocardial resection until the treatment effect is achieved, further increasing the operation efficiency, reducing the risk of bleeding, and increasing the success rate of operation.

[0125] (4) In the mechanical myocardial resection system provided by the present application, each functional component is mechanically connected to each other, and all have reset function, thereby introducing rotary cutting and storage of the tissue, realizing simultaneous in-vivo continuous resection of the target tissue, realizing continuous myocardial resection until the treatment effect is achieved, further increasing the operation efficiency, reducing the risk of bleeding, and increasing the success rate of operation.

[0126] (5) In the myocardial resection system provided by the present application, the rotary cutting window is oriented to facilitate the resection of myocardial tissue below the interventricular septum hypertrophy and myocardial tissue in the apex direction, and is suitable for doctors who are used to using left hand.

[0127] (6), the myocardial resection system provided by the application can realize a minimally invasive incision (about 4 cm) in actual application, reduces the damage to the heart and the amount of bleeding during the operation. The heart does not stop beating, the amount of myocardial resection is accurately grasped, the resection scheme is flexible, and the treatment effect is achieved at one time.

[0128] (7), the mechanical myocardial resection system provided by the application can realize single-hand operation in actual application, and the single-hand operation has high stability and will not shift position, accurate positioning can be realized, the trigger and the trigger can be matched to complete the actions of opening the window, adsorbing, rotary cutting, storing the tissue, and closing the window in a semi-automatic manner, and the displacement difference caused by double-hand operation is avoided to cause its complications.

[0129] (8), the electric continuous myocardial tissue resection system provided by the application can realize single-hand operation in actual application, and the single-hand operation has high stability and will not shift position, accurate positioning can be realized, one-key full-automatic completion from opening the window, adsorbing, rotary cutting, storing the tissue, and closing the window can be realized, and the displacement difference caused by double-hand operation is avoided to cause its complications. BRIEF DESCRIPTION OF DRAWINGS

[0130] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0131] Fig. 1 is a structural schematic diagram of an electric continuous spiral resection type myocardial rotary cutting system provided by the first embodiment of the application.

[0132] Fig. 2 is a schematic diagram of the front end structure of a rotary cutting assembly in an electric continuous spiral resection type myocardial rotary cutting system provided by the first embodiment of the application.

[0133] Fig. 3 is a schematic diagram of the resection window structure in an electric continuous spiral resection type myocardial rotary cutting system provided by the first embodiment of the application.

[0134] Fig. 4 is a schematic diagram of the resection window closing and opening structure in an electric continuous spiral resection type myocardial rotary cutting system provided by the first embodiment of the application.

[0135] Fig. 5 is a schematic diagram of the rotary cutting assembly structure in an electric continuous spiral resection type myocardial rotary cutting system provided by the first embodiment of the application.

[0136] Fig. 6 is a schematic diagram of the rotary cutting knife structure in an electric continuous spiral resection type myocardial rotary cutting system provided by the first embodiment of the application.

[0137] Fig. 7 is a schematic diagram of a sealing structure in an electrically-powered continuous helical resection myocardial rotary cutting system according to the first embodiment of the present application.

[0138] Fig. 8 is a schematic diagram of a structure for communicating the inner cavities of a negative pressure assembly and a rotary cutting assembly in an electrically-powered continuous helical resection myocardial rotary cutting system according to the first embodiment of the present application.

[0139] Fig. 9 is a schematic diagram of an electronic control assembly structure in an electrically-powered continuous helical resection myocardial rotary cutting system according to the first embodiment of the present application.

[0140] Fig. 10 is a sectional view of a front end structure of a rotary cutting assembly in an electrically-powered continuous helical resection myocardial rotary cutting system according to the first embodiment of the present application.

[0141] Fig. 11 is a schematic diagram of an overall appearance structure of an electrically-powered continuous helical resection myocardial rotary cutting system according to the first embodiment of the present application.

[0142] Fig. 12 is a schematic diagram of a structure of an electrically-powered continuous laser resection myocardial rotary cutting system according to the second embodiment of the present application.

[0143] Fig. 13 is a schematic diagram of a negative pressure assembly storage warehouse sleeve and a goose nose head structure according to the second embodiment of the present application.

[0144] Fig. 14 is a schematic diagram of a rotary cutting window closing of an axial laser resection assembly according to the second embodiment of the present application.

[0145] Fig. 15 is a schematic diagram of a rotary cutting window opening of an axial laser resection assembly according to the second embodiment of the present application.

[0146] Fig. 16 is a schematic diagram of a partial structure of an electrically-powered continuous laser resection myocardial rotary cutting system according to the second embodiment of the present application.

[0147] Fig. 17 is a functional component diagram of a rotary cutting cavity communication and negative pressure vacuum assembly according to the second embodiment of the present application.

[0148] Fig. 18 is a schematic diagram of a negative pressure assembly storage warehouse sleeve structure according to the second embodiment of the present application.

[0149] Fig. 19 is a schematic diagram of a compressed tissue device assembly structure according to the second embodiment of the present application.

[0150] Fig. 20 is a schematic diagram of an axial laser resection assembly structure according to the second embodiment of the present application.

[0151] Fig. 21 is a schematic diagram of a puncture needle, a protective sleeve, and a negative pressure assembly storage warehouse sleeve according to the second embodiment of the present application.

[0152] Figure 22 is an example diagram of a laser resection window structure of an electrically powered continuous laser myocardial resection system according to a second embodiment of the present application.

[0153] Figure 23 is a schematic diagram of an appearance of an electrically powered continuous myocardial resection system according to the second embodiment of the present application.

[0154] Figure 24 is a schematic diagram of a partial structure of an electrically powered continuous myocardial resection system according to a third embodiment of the present application.

[0155] Figure 25 is a schematic diagram of an internal cavity structure of a resection assembly according to the third embodiment of the present application.

[0156] Figure 26 is a schematic diagram of a resection window closed on a resection assembly according to the third embodiment of the present application.

[0157] Figure 27 is a schematic diagram of a resection window opened on a resection assembly according to the third embodiment of the present application.

[0158] Figure 28 is a functional component diagram of a resection cavity communication, a puncture needle, and a negative pressure assembly according to the third embodiment of the present application.

[0159] Figure 29 is a functional component diagram of an internal cavity and a negative pressure assembly of a resection assembly according to the third embodiment of the present application.

[0160] Figure 30 is a schematic diagram of a resection assembly structure according to the third embodiment of the present application.

[0161] Figure 31 is a schematic diagram of a compressed tissue device assembly structure according to the third embodiment of the present application.

[0162] Figure 32 is a schematic diagram of a puncture needle device assembly structure according to the third embodiment of the present application.

[0163] Figure 33 is a schematic diagram of a resection window opening direction structure according to the third embodiment of the present application.

[0164] Figure 34 is a schematic diagram of an appearance of an electrically powered continuous myocardial resection system according to the third embodiment of the present application.

[0165] Figures 35 and 36 are schematic diagrams of a myocardial resection system with barbed puncture needles according to a fourth embodiment of the present application.

[0166] Figure 37 is a schematic diagram of a resection window structure of a myocardial resection system with barbed puncture needles according to the fourth embodiment of the present application.

[0167] Figure 38 is a schematic diagram of a resection blade structure of a myocardial resection system with barbed puncture needles according to the fourth embodiment of the present application.

[0168] Fig. 39 is a schematic diagram of a puncture needle structure of a heart resection system with barbed puncture needles according to a fourth embodiment of the present application.

[0169] Fig. 40 is a schematic diagram of a resection window, puncture needle and tissue storage chamber structure of a heart resection system with barbed puncture needles according to the fourth embodiment of the present application.

[0170] Fig. 41 is a schematic diagram of a mechanical driving assembly structure of a heart resection system with barbed puncture needles according to the fourth embodiment of the present application.

[0171] Fig. 42 is a functional schematic diagram of a resection cavity communication and negative pressure vacuuming assembly of a heart resection system with barbed puncture needles according to the fourth embodiment of the present application.

[0172] Fig. 43 is a schematic diagram of an appearance of a heart resection system with barbed puncture needles according to the fourth embodiment of the present application.

[0173] Fig. 44 is a schematic diagram of a compression rod of a heart resection system with barbed puncture needles according to a fifth embodiment of the present application.

[0174] Fig. 45 and Fig. 46 are schematic diagrams of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0175] Fig. 47 is a schematic diagram of a resection window structure of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0176] Fig. 48 is a schematic diagram of a resection blade structure of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0177] Fig. 49 is a schematic diagram of a puncture needle structure of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0178] Fig. 50 is a schematic diagram of a negative pressure assembly structure of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0179] Fig. 51 is a schematic diagram of a resection window, puncture needle and tissue storage chamber structure of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0180] Fig. 52 is a functional schematic diagram of a resection cavity communication and negative pressure vacuuming assembly of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0181] Fig. 53 is a schematic diagram of an appearance of a mechanical resection heart resection system with barbed puncture needles according to the fifth embodiment of the present application.

[0182] 100, Myocardial resection system; 1, Resection assembly; 2, Shell; 3, Electronic control assembly; 4, Negative pressure assembly; 5, Second driving assembly, 6, First driving assembly; 7, Energy supply assembly; 1-1, Sealing cover; 1-2, First sleeve; 1-3, Second sleeve; 1-4, Resection cutter; 1-41, Resection shaft; 1-42, Spiral blade; 1-5, Resection window; 1-6, Tissue storage bin; 3-1, First motor controller; 3-2, Second motor controller; 4-2, Sealing ring; 4-3, Vacuumizing assembly; 5-1, Second driving motor; 6-0, First driving motor; 6-1, First gear; 6-2, Second gear; 200, Myocardial resection system; 60, Tissue compression assembly; 70, Tissue locking assembly; 3-3, Start button; 3-4, Integrated circuit board; 2-5, Laser energy column; 7-1, Tissue locking piece; 9, Energy supply assembly; 2-1, Third gear; 2-2, Fourth gear; 2-3, First connecting shaft; 61, Third driving assembly; 6-3, Connecting rod; 6-4, Compression piece; 6-5, Third driving motor; 6-6 Slider; 6-7, Second connecting rod; 71, Fourth driving assembly; 7-2, Fourth driving motor; 6-8, Avoidance slot; 300, Myocardial resection system; 5-0, Goose nose; 5-4, Ventilation pipe; 5-5, Air nozzle; 400, Myocardial resection system; 1-7, First bevel gear; 1-11, Barbed structure; 1-8, First elastic piece; 1-9, Third sleeve; 2-8, Limiting pin; 2-10, First limiting slot; 2-9, Second limiting slot; 2-11, Pin shaft; 20, Mechanical driving assembly; 20-1, Trigger; 20-2, Hinge; 20-3, Second elastic piece; 20-4, Rack; 20-5, Buckling machine; 20-6, Torsional spring; 20-7, Second bevel gear; 2-4 / 2-5, Screw; 2-6, Compression rod; 500, Myocardial resection system; 2-51, Step shaft; 2-41, Third limiting slot; 20-21, Fourth limiting slot; 1-111, Silicone film.

[0183] Embodiments of the present application

[0184] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the scope of protection of the present application.

[0185] As shown in FIG. 1 to FIG. 11, the first embodiment of the present application provides a myocardial rotary cutting system 100, which is an electric continuous helical resection myocardial rotary cutting system. The myocardial rotary cutting system 100 comprises a shell 2, a rotary cutting assembly 1, an electronic control assembly 3, a negative pressure assembly 4, a second driving assembly 5, a first driving assembly 6 and a power supply assembly 7 arranged in the shell 2. The power supply assembly 7 supplies power to the components requiring electric power in the system. The shell 2 is used to construct the main structure of the system scheme to carry other constituent components to form a compact, stable and reliable whole.

[0186] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 8 and FIG. 10, the rotary cutting assembly 1 extends outward from the shell 2, and the internal cavity thereof is in communication with the inner cavity of the shell 2. The first sleeve 1-2 of the rotary cutting assembly 1 is provided with a resection window 1-5 in communication with the internal cavity thereof. The rotary cutting assembly 1 is provided with a rotary cutting knife 1-4, which forms a continuous axial helical resection action relative to the resection window 1-5. The internal cavity of the rotary cutting assembly 1 is provided with a tissue storage bin 1-6, and the negative pressure assembly 4 is connected with a vacuumizing assembly 4-3.

[0187] The internal cavity of the rotary cutting assembly 1 is in communication with the negative pressure assembly 4. When the resection window 1-5 of the rotary cutting assembly 1 is closed and enters the target position in the ventricle, it is started by one key of the switch button of the electronic control assembly 3. The first sleeve 1-2 is rotated by 180° under the program control of the electronic control assembly 3, the resection window 1-5 is opened, and then the negative pressure assembly 4 is automatically started under the program control of the electronic control assembly 3. Under the suction force of the vacuumizing assembly 4-3, the target tissue is adsorbed at the resection window 1-5, and then the rotary cutting knife 1-4 is quickly rotated clockwise under the program control of the electronic control assembly 3, and the second driving assembly 5 drives the rotary cutting knife 1-4 to rotate to rotary cut the target tissue. The rotary cut tissue is pushed into the tissue storage bin 1-6 under the fast helical rotation of the rotary cutting knife 1-4, and the resection window 1-5 can be rotary cut again. When the system is withdrawn after the operation is completed, the first sleeve 1-2 is rotated by 180° under the program control of the electronic control assembly 3, and the resection window 1-5 is closed to avoid damage to other tissues of the human body.

[0188] As shown in FIG. 4 and FIG. 5, the first sleeve 1-2 is sleeved outside the second sleeve 1-3, the end of the second sleeve 1-3 is connected with a sealing cover 1-1, and the first sleeve 1-2 is gap-fitted with the inner wall of the second sleeve 1-3. When the second sleeve 1-3 shields the resection window 1-5, the resection window 1-5 is in a closed state.

[0189] As shown in FIG. 7, the internal cavity of the rotary cutting assembly 1 is sealed with the negative pressure assembly 4 through the sealing ring 4-2. The negative pressure assembly 4 in the embodiment is arranged in cooperation with the rotary cutting assembly 1. The negative pressure assembly 4 is connected with a vacuumizing assembly 4-3, the air outlet of the vacuumizing assembly 4-3 is connected with the internal cavity of the rotary cutting assembly 1, and a negative pressure state can be formed in the internal cavity of the second sleeve 1-3, and a negative pressure adsorption force is formed in the resection window 1-5.

[0190] As shown in FIG. 9 and FIG. 10, the second driving assembly 5 includes a second driving motor 5-1, the output shaft of the second driving motor is connected with the rotating shaft of the rotary cutting knife 1-4, and the blade of the rotary cutting knife 1-4 is arranged on the rotating shaft. The rotary cutting knife 1-4 in the embodiment is connected with the first driving motor, the blade of the rotary cutting knife 1-4 is matched with the gap of the inner wall of the second sleeve 1-3, the myocardial tissue is sucked into the resection window 1-5, and under the control of the energy supply assembly 7 and the electronic control assembly 3, the myocardial tissue is rotated clockwise in the axial direction, the myocardial tissue cut by the rotary cutting knife 1-4 is automatically sent into the tissue storage bin 1-6 under the action of the spiral rotating force, and at this time, the resection window 1-5 can be repeatedly used for continuous operation. The internal cavity of the second sleeve 1-3 is added with a barium sulfate high polymer material to enhance the ultrasonic imaging feature.

[0191] As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the continuous spiral resection type myocardial rotary cutting system further includes a first driving assembly 6, the first driving assembly 6 includes a first driving motor 6-0, the output shaft of the second driving motor 6-0 is connected with a first gear 6-1, the first gear 6-1 is engaged with a second gear 6-2, and the second gear 6-2 is sleeved on the shell of the rotary cutting assembly 1 to realize the rotation of the first sleeve 1-2 driven by the first driving assembly 6. The first sleeve 1-2 in the embodiment is connected with the gear in an integrated manner, and is engaged with the second motor gear, under the control of the energy supply assembly 7 and the electronic control assembly 3, the resection window 1-5 is repeatedly rotated 180 degrees in the axial direction to be opened and closed, so as to avoid scratching other tissues in the process of entering and exiting the heart chamber. The first sleeve 1-2 of the rotary cutting assembly 1 protects the tissues from being scratched by the resection window 1-5 in the process of the whole assembly entering the myocardial chamber, and after reaching the target position, the resection window 1-5 is opened after the first sleeve 1-2 is rotated 180 degrees in the axial direction through the electronic control assembly 3.

[0192] As shown in FIG. 9, the electronic control assembly 3 is connected with a first motor controller 3-1 and a second motor controller 3-2, the first motor controller 3-1 is used for controlling the second driving assembly 5, and the second motor controller 3-2 is used for controlling the first driving assembly 6.

[0193] Compared with the prior art, the embodiment of the application provides an electric continuous spiral resection type myocardial rotary cutting system, which has the following beneficial effects:

[0194] (1), the continuity helical resection type myocardial rotary cutting system scheme provided by the application adopts vacuum negative pressure adsorption to make the tissue enter the rotary cutting cavity, which can prevent the removed tissue from forming artificial thrombus and its complications, ensure the integrity of the target removed tissue and the smoothness of the incision, and avoid the wrinkles of the incision causing complications.

[0195] (2), in the continuity helical resection type myocardial rotary cutting system provided by the application, each functional component is organically linked, and all has an automatic reset function, so that the automatic compression and storage of the tissue are introduced, the simultaneous in-vivo continuous compression and storage of the removed target tissue are realized, the continuous myocardial resection is realized until the treatment effect is achieved, the operation efficiency is further increased, the risk of bleeding is reduced, and the success rate of operation is increased.

[0196] (3), in the continuity helical resection type myocardial rotary cutting system scheme provided by the application, the resection window is oriented towards the interventricular septum hypertrophy myocardium below the aortic valve and the myocardium in the apex direction, and is suitable for the doctor who is used to using the left hand.

[0197] (4), in the actual application of the continuity helical resection type myocardial rotary cutting system provided by the application, a minimally invasive incision (about 4 cm) can be realized, the damage to the heart and the amount of bleeding during the operation are reduced, the heart does not stop beating, the amount of myocardial resection is accurately grasped, the resection scheme is flexible, and the treatment effect is achieved at one time.

[0198] (5), in the actual application of the continuity helical resection type myocardial rotary cutting system provided by the application, single-hand operation can be realized, the single-hand operation has high stability, will not shift, can be accurately positioned, and can realize one-key full-automatic completion of the actions of opening the window, adsorbing, rotary cutting, storing the tissue, and closing the window, so as to avoid the displacement difference caused by double-hand operation and the complications caused thereby.

[0199] Please refer to FIGS. 12 to 23, the application provides a myocardial rotary cutting system 200, which is a kind of electric continuous laser resection myocardial rotary cutting system, the myocardial rotary cutting system 200 includes a shell 2, the shell 2 is used to construct the main architecture of the system scheme, to carry other constituent components, to form a compact, stable and reliable whole. The shell 2 is provided with rotary cutting assembly 1, electronic control assembly 3, tissue compression assembly 60, tissue locking assembly 70, negative pressure device assembly 4 and energy supply assembly 9, and the rotary cutting assembly 1 is an axial laser resection assembly. These functional components cooperate with each other, can realize double locking of tissue under the condition of minimally invasive incision, continuous laser rotary cutting, accurate resection of myocardial tissue, immediate hemostasis and coagulation of tissue incision, reduce the risk of excessive loss, and make the system. The electronic control assembly 3 includes a start button 3-3 and an integrated circuit board 3-4, and each action is controlled in turn through an electronic program.

[0200] As shown in FIG. 12, FIG. 16, FIG. 17 and FIG. 18, the second sleeve 1-3 is arranged to extend outwardly from the housing 2, and the internal cavity thereof is communicated with the internal cavity of the housing 2. The first sleeve 1-2, also called negative pressure assembly storage sleeve, is connected to the exposed end of the second sleeve 1-3, and the two are sealed by a sealing ring. The end of the first sleeve 1-2 is connected to the goose nose 5-0, which is a high-temperature-resistant goose nose. The outer tube is smooth, characterized by smooth entry into the target position and reduced obstruction. The first sleeve 1-2 is provided with a resection window 1-5 and a tissue storage bin 1-6; the spin cutting assembly 1 is formed with an internal cavity communicated with the resection window 1-5 on the side away from the housing 2. The spin cutting assembly 1 forms a continuous axial resection laser energy column 2-5 relative to the resection window 1-5.

[0201] The negative pressure device assembly 4 is connected at one end to the vacuum extraction assembly 4-3, and the tissue locking member 7-1 of the tissue locking assembly 70 is connected to the vacuum extraction assembly 4-3. The air outlet of the vacuum extraction assembly 4-3 is arranged in position with the first sleeve 1-2. The energy supply assembly 9 is used to provide electrical energy to the system. In this embodiment, the vacuum extraction assembly 4-3 is arranged in cooperation with the tissue locking member 7-1, and the sealing ring 4-2 plays a role in sealing the tube, so that a negative pressure state can be formed in the internal cavity of the axial laser rotary cutting knife assembly, a negative pressure adsorption force is formed at the resection window, and the tissue locking member 7-1 penetrates and fixes the tissue, so that the safety of laser rotary cutting of the tissue is higher, and further prevention of artificial thrombosis and its complications of the cut tissue is achieved.

[0202] As shown in FIG. 12, FIG. 13, FIG. 14, FIG. 15, FIG. 16, FIG. 17 and FIG. 22, when the resection window 1-5 is closed and enters the target position in the ventricle, it is started by one key of the electronic control assembly 3 switch button, the second sleeve 1-3 is rotated 180° under the program control of the electronic control assembly 3, the resection window 1-5 is opened, then the first sleeve 1-2 is automatically started under the program control of the electronic control assembly 3, and the target tissue is adsorbed at the resection window 1-5 under the suction of the negative pressure, then the tissue locking member 7-1 is instantaneously pierced into the tissue under the control of the electronic control assembly 3, and the target entering the internal cavity of the axial laser rotary cutting assembly 2 is punctured and fixed, at this time the laser energy column 2-5 of the axial laser rotary cutting assembly 2 is turned on, the laser energy column 2-5 is axially rotated 180° along the tissue locking member 7-1 and axially fixed to the tissue to be cut, the tissue is cut, the laser energy column 2-5 is turned off and reset, finally the compression member 6-4 (the compression member can be a flange plate) of the tissue compression assembly 60 pushes the cut tissue along the tissue locking member 7-1 and compresses it into the tissue storage bin 1-6, the compression member 6-4 is reset, the tissue locking member 7-1 is reset and prepares for the next cutting work; when the operation is completed, the second sleeve 1-3 is rotated 180° under the program control of the electronic control assembly 3, and the resection window 1-5 is closed to avoid damage to other tissues of the human body.

[0203] The resection window 1-5 is opened and closed repeatedly by axial clockwise rotation 180 under the control of the energy supply assembly 9 and the electronic control assembly 3, so as to scratch other tissues in the process of entering and exiting the heart chamber. The second sleeve 1-3 is connected with the corresponding electric motor, the laser energy column is matched with the inner wall gap of the rotary cutting tube, and the myocardial tissue is sucked into the rotary cutting window. After the myocardial tissue is sucked into the rotary cutting window, the myocardial tissue is rotated clockwise under the control of the energy supply assembly 9 and the electronic control assembly 3, and the rotated myocardial tissue is automatically sent to the tissue storage bin 1-6 by the laser rotating force. At this time, the window can be repeatedly and continuously operated.

[0204] As shown in FIG. 21, the first driving assembly 6 includes a first driving motor 6-0, a first gear 6-1 and a second gear 6-2. The output shaft of the first driving motor is connected with the first gear 6-1. The first gear 6-1 and the second gear 6-2 are in gear engagement. One end of the second sleeve 1-3 is connected with the second gear 6-2. The other end of the second sleeve 1-3 is sleeved on the first sleeve 1-2.

[0205] As shown in FIG. 12, FIG. 20 and FIG. 22, the rotary cutting assembly 1 includes a rotary cutting cutter 1-4, which is a laser resection cutter. The second driving assembly 5 includes a second driving motor 5-1, a third gear 2-1, a fourth gear 2-2 and a first connecting shaft 2-3. The output shaft of the second driving motor 5-1 is connected with the third gear 2-1. The third gear 2-1 and the fourth gear 2-2 are in gear engagement. One end of the first connecting shaft 2-3 is connected with the fourth gear 2-2. The other end of the first connecting shaft 2-3 is connected with the rotary cutting cutter 1-4, which is used to excite the laser energy column 2-5. The diameter of the laser energy column 2-5 is 0.1mm-0.2mm. The laser energy column 2-5 can rotate 180° axially around the tissue locking member 7-1. The rotating track of the laser energy column 2-5 passes through the entire resection window 1-5, which can ensure the integrity of the target resection tissue and the smoothness of the incision, avoid the wrinkles of the incision to cause complications, and make the blood on the surface of the incision wound coagulate quickly to reduce the risk of excessive loss of blood as shown in FIG. 22.

[0206] As shown in FIG. 17 and FIG. 16, the tissue compression assembly 60 includes a compression member 6-4. The third driving assembly 61 includes a third driving motor 6-5, a second connecting rod 6-7, a sliding block 6-6 and a first connecting rod 6-3. In some embodiments, the second connecting rod 6-7 is a lead screw. One end of the second connecting rod 6-7 is connected with the output shaft of the third driving motor. The other end of the second connecting rod 6-7 is connected with the sliding block 6-6. One end of the first connecting rod 6-3 is connected with the sliding block 6-6. The other end of the first connecting rod 6-3 is connected with the compression member 6-4. The first connecting rod 6-3 is arranged through the inner cavities of the second sleeve 1-3 and the first sleeve 1-2.

[0207] As shown in FIG. 21 and FIG. 18, the fourth driving assembly 71 comprises a fourth driving motor 7-2, and the tissue locking member 7-1 is connected with the output shaft of the fourth driving motor 7-2.

[0208] As shown in FIG. 14 and FIG. 15, the second sleeve 1-3 protects the tissue from being scratched by the cutting window 1-5 during the whole process of the first sleeve 1-2 entering into the myocardial chamber, and after reaching the target position, the second sleeve 1-3 is rotated by 180° in the axial direction under the control of the electronic control assembly 3, and then the window is opened, and after the tissue is cut, the second sleeve 1-3 is rotated by 180° again, and the cutting window 1-5 is closed, so that the whole first sleeve 1-2 does not scratch the tissue during the process of withdrawing from the human body, thereby causing inflammation or infection. As shown in FIG. 14 and FIG. 15.

[0209] The tissue compression assembly 60 is configured to be matched with the rotary cutting assembly 1 and the tissue locking member 7-1, and when the tissue is cut off, the tissue is still on the tissue locking member 7-1, and under the control of the electronic control assembly 3, the compression member 6-4 pushes the cut tissue along the tissue locking member 7-1 to the tissue storage bin 1-6, and during the movement, the compression member 6-4 can synchronously compress the tissue cut by the axial laser cutting assembly. As shown in FIG. 16 and FIG. 18.

[0210] The surface of the cutting cavity body of the axial laser cutting assembly is formed with an ultrasonic imaging enhancement feature, or the cutting cavity body in the assembly uses a high-molecular material added with barium sulfate to enhance the ultrasonic imaging. The opening direction of the cutting window 1-5 of the first sleeve 1-2 is arranged on the left side of the instrument and perpendicular to the ground, and since when the instrument enters from the apex of the heart, the target is on the left side of the rotary cutting rod, thereby effectively solving the case that the main operator is used to the left hand.

[0211] Compared with the prior art, the embodiment of the present application provides a kind of electric continuous laser cutting myocardial rotary cutting system, with the following beneficial effects:

[0212] (1), the continuous laser cutting myocardial tissue resection electric system scheme provided by the present application adopts vacuum negative pressure to adsorb tissue into rotary cutting cavity, which can prevent the cut tissue from forming artificial thrombus and its complications, ensure the integrity of the target cut tissue and the smoothness of the incision, and avoid the wrinkles of the incision causing complications.

[0213] (2), in the continuous laser cutting myocardial tissue resection electric system provided by the present application, each functional component is electrically connected and moved simultaneously, and each functional component also has an automatic reset function, thereby introducing the automatic compression and storage of the tissue, realizing the simultaneous in-vivo compression and storage of the cut target tissue, realizing the continuous myocardial resection until the treatment effect is achieved, further increasing the operation efficiency, reducing the risk of bleeding and increasing the success rate of operation.

[0214] (3), the continuous laser resection myocardial tissue resection electric system scheme provided by the application is beneficial to the resection of the myocardium under the aortic valve and the myocardium in the apex direction, and is suitable for the doctor who is used to using the left hand.

[0215] (4), the continuous laser resection myocardial tissue resection electric system provided by the application can realize a minimally invasive incision (4 cm) in actual application, reduce the damage to the heart and the amount of bleeding during the operation. The heart does not stop beating, the amount of myocardial resection is accurately grasped, the resection scheme is flexible, and the treatment effect is achieved at one time.

[0216] (5), the continuous laser resection myocardial tissue resection electric system provided by the application can realize single-hand operation, and the single-hand operation has high stability and cannot be shifted, accurate positioning can be realized, one-key full-automatic completion from opening the window, adsorption, rotary cutting, storage tissue, closing the window action can be realized, and the displacement difference caused by double-hand operation can be avoided to cause its complications.

[0217] As shown in FIGS. 24-34, the third embodiment of the application provides a myocardial rotary cutting system 300, which is a kind of electric continuous myocardial tissue resection system. The myocardial rotary cutting system 300 comprises a shell 2, a second sleeve 1-3, an electronic control assembly 3, a tissue locking assembly 70, a negative pressure assembly 4, a tissue compression assembly 60 and an energy supply assembly 7 arranged in the shell 2. The energy supply assembly 7 is used to provide electric energy for the system.

[0218] The rotary cutting assembly 1 comprises the first sleeve 1-2 and the second sleeve 1-3 arranged in the first sleeve 1-2. The first sleeve 1-2 is arranged outwardly from the shell 2 and is connected with a goose nose 5-0 at the end. The outer wall of the goose nose 5-0 is smooth and can be smoothly inserted into the target position to reduce the obstruction. The side of the first sleeve 1-2 away from the shell 2 is formed with a resection window 1-5 and a tissue storage bin 1-6. The end of the second sleeve 1-3 is provided with a rotary cutting knife 1-4. The rotary cutting knife 1-4 can form a continuous axial rotary cutting action relative to the resection window 1-5 based on the axial rotation. When the second sleeve 1-3 blocks the resection window 1-5, the resection window 1-5 is in a closed state, as shown in FIGS. 26 and 27. The negative pressure assembly 4 is in communication with the inner cavity of the rotary cutting assembly 1.

[0219] The tissue compression assembly 60 comprises a compression member 6-4, and the third driving assembly 61 comprises a third driving motor 6-5, a second connecting rod 6-7, a sliding block 6-6 and a first connecting rod 6-3. In some embodiments, the second connecting rod 6-7 is a lead screw. One end of the second connecting rod 6-7 is connected with the output shaft of the third driving motor, and the other end is connected with the sliding block 6-6. One end of the first connecting rod 6-3 is connected with the sliding block 6-6, and the other end is connected with the compression member 6-4. The first connecting rod 6-3 is arranged through the inner cavities of the second sleeve 1-3 and the first sleeve 1-2, as shown in FIG. 31.

[0220] When the rotary cutting assembly 1 is inserted into the tissue requiring surgery, and then the electronic control assembly 3 is turned on, the second sleeve 1-3 rotates by a preset angle to open the resection window 1-5, and the negative pressure assembly 4 is turned on. The tissue will be sucked into the resection window 1-5. The tissue locking assembly 70 is controlled by the electronic control assembly 3. The tissue locking member 7-1 (for example: a puncture needle) of the tissue locking assembly 70 instantaneously pierces the tissue to puncture and fix the target entering the internal cavity from the resection window 1-5. The rotary cutting knife 1-4 rotates 180° around the axis of the first sleeve 1-2 to cut the tissue to be resected which is locked. The compression member 6-4 of the tissue compression assembly 60 pushes the cut tissue along the tissue locking member 7-1 to the tissue storage bin 1-6. The third drive motor 6-5 reverses to reset the compression member 6-4 and the tissue locking member 7-1, preparing for the next round of resection work. The continuous myocardial tissue resection system can realize double locking of the tissue, continuous rotary cutting, and accurate resection of myocardial tissue in a minimally invasive incision state, reducing the risk of excessive blood loss and accelerating postoperative recovery.

[0221] As shown in FIG. 30, the first drive assembly 6 includes a first drive motor 6-0, a first gear 6-1, and a second gear 6-2. The output shaft of the first drive motor 6-0 is connected with the first gear 6-1. The first gear 6-1 and the second gear 6-2 are in gear engagement. One end of the second sleeve 1-3 is connected with the second gear 6-2. The first gear 6-1 and the second gear 6-2 are preferably spur gears. The resection window can realize 180° rotation to switch between opening and closing. The second sleeve 1-3 is connected with the spur gears integrally and is engaged with the motor gears. Under the control of the power supply assembly 7 and the electronic control assembly 3, the second sleeve 1-3 is repeatedly rotated 180° clockwise in the axial direction to open and close the resection window, so as to avoid scratching other tissues during the process of entering and exiting the heart chamber.

[0222] As shown in FIG. 32, the fourth drive assembly 71 is a fourth drive motor 7-2. The tissue locking member 7-1 is connected with the output shaft of the fourth drive motor 7-2. As shown in FIG. 1, the electronic control assembly 3 is connected with a first motor controller 3-1 and a second motor controller 3-2. The first motor controller 3-1 is preferably used to control the first drive motor 6-0. The second motor controller 3-2 is preferably used to control the fourth drive motor 7-2 and the third drive motor 6-5.

[0223] As shown in FIGS. 24 and 28, the negative pressure assembly 4 includes a breather pipe 5-4 and a vacuum pumping assembly 4-3 connected with the breather pipe 5-4. The vacuum pumping assembly 4-3 is communicated with the inner cavity of the first sleeve 1-2 through an air nozzle 5-5. The air nozzle 5-5 and the inner cavity of the first sleeve 1-2 are sealed by a sealing ring 4-2.

[0224] The vacuumizing assembly 4-3 in the negative pressure assembly 4 is matched with the tissue locking assembly 70, the sealing ring 4-2 plays a role of in-tube sealing, a negative pressure state can be formed in the internal cavity of the rotary cutting assembly 1, a negative pressure adsorption force is formed at the resection window, the tissue locking member 7-1 penetrates into and fixes the tissue, the safety of the rotary resection tissue is higher, and the resected tissue can be further prevented from falling in the body, artificial thrombus and its complications are avoided.

[0225] The rotary cutting cutter 1-4 of the rotary cutting assembly 1 is attached to the inner wall of the first sleeve 1-2, the resection window 1-5 is opened after the rotary cutting cutter 1-4 rotates by a preset angle around the shaft, and the resection window 1-5 is closed after the rotary cutting cutter 1-4 rotates by 180 degrees, so that the rotary cutting cutter 1-4 can form a continuous axial rotary resection action relative to the resection window 1-5 based on the axial rotation, the integrity of the target resection tissue and the smoothness of the incision are ensured, and the wrinkles of the incision are avoided to cause complications and reduce the risk of excessive blood loss. The preset angle is 0-180 degrees.

[0226] As shown in FIGS. 26 and 27, the rotary cutting assembly 1 protects the tissue during the process of entering the myocardial chamber and avoids being scratched by the resection window 1-5, the window is opened after the rotary cutting assembly 1 rotates by 180 degrees when reaching the target position, the window is closed after the rotary cutting assembly 1 rotates by 180 degrees after completing the surgical resection, and the entire assembly is avoided to scratch the tissue during the process of withdrawing from the human tissue, so as to cause inflammation or infection.

[0227] As shown in FIG. 28, the tissue compression assembly 60 is interlocked with the rotary cutting assembly 1, the tissue locking assembly 70 and the negative pressure assembly 4, the cut tissue is pushed to the tissue storage bin 1-6 by the compression member 6-4 along the tissue locking member 7-1 after the tissue is resected on the tissue locking member 7-1, and the cut tissue is compressed synchronously during the movement.

[0228] The resection cavity main body surface in the rotary cutting assembly 1 is formed with an ultrasonic imaging enhancement feature, or the resection cavity main body in the assembly uses a high polymer material added with barium sulfate to enhance the ultrasonic imaging. The opening direction of the resection window 1-5 of the second sleeve 1-3 is on the left side of the instrument and is vertically arranged with the ground, because the instrument enters from the apex of the heart, the target is on the left side of the rotary cutting tube, and thus the situation that the main operator is used to the left hand is effectively solved.

[0229] The application can realize the locking of the tissue in the minimally invasive incision state, continuous rotary cutting until the completion of the operation, the window is closed after the rotary cutting tube rotates by 180 degrees, the entire assembly is avoided to scratch the tissue during the process of withdrawing from the human tissue, so as to cause inflammation or infection.

[0230] Compared with the prior art, the embodiment of the application provides an electric continuous myocardial tissue resection system, which has the following beneficial effects:

[0231] (1) The continuous myocardial tissue resection system provided by the application adopts vacuum negative pressure to adsorb the tissue into the rotary cutting cavity, which can prevent the resected tissue from forming artificial thrombus and its complications, ensure the integrity of the target resected tissue and the smoothness of the incision, and avoid the wrinkles of the incision causing complications.

[0232] (2) In the continuous myocardial tissue resection system provided by the application, the various functional components are electrically connected to each other and are provided with automatic reset functions, thereby introducing the automatic compression and storage of the tissue, realizing the simultaneous in-vivo continuous compression and storage of the resected target tissue, realizing the continuous myocardial resection until the treatment effect is achieved, further increasing the operation efficiency, reducing the risk of bleeding, and increasing the success rate of the operation.

[0233] (3) In the continuous myocardial tissue resection system provided by the application, the resection window is oriented towards the hypertrophic myocardium under the aortic valve and the myocardium in the apex direction, and is suitable for the doctor who is used to using the left hand.

[0234] (4) In the actual application of the continuous myocardial tissue resection system provided by the application, a minimally invasive incision (about 4 cm) can be realized, the damage to the heart and the amount of bleeding during the operation can be reduced, the heart can continue to beat, the amount of myocardial resection can be accurately grasped, the resection scheme is flexible, and the treatment effect can be achieved at one time.

[0235] (5) In the actual application of the continuous myocardial tissue resection system provided by the application, single-hand operation can be realized, the single-hand operation has high stability, will not shift, can be accurately positioned, and can realize one-key full-automatic completion of the actions of opening the window, adsorbing, rotary cutting, storing the tissue, and closing the window, so as to avoid the displacement difference caused by double-hand operation and the complications caused thereby.

[0236] As shown in FIGS. 35 to 44, the embodiment of the application provides a myocardial rotary cutting system 400, which is a myocardial rotary cutting system containing a barb puncture needle, and the myocardial rotary cutting system 400 comprises a shell 2, and a rotary cutting assembly 1 and a negative pressure assembly 4 are arranged in the shell 2.

[0237] The second sleeve 1-3 extends to the outside of the shell 2, and the internal cavity thereof is in communication with the internal cavity of the shell 2; the rotary cutting assembly 1 comprises a first sleeve 1-2, and a resection window 1-5 and a tissue storage bin 1-6 are arranged on the side face of the first sleeve 1-2 away from the shell 2; the resection window 1-5 is in communication with the internal cavity thereof, as shown in FIGS. 37 and 40; the rotary cutting assembly 1 further comprises a second sleeve 1-3, the first sleeve 1-2 is sleeved on the second sleeve 1-3, one end of the second sleeve 1-3 is connected with a first bevel gear 1-7, and the other end of the second sleeve 1-3 is formed with a rotary cutting cutter 1-4; the rotary cutting cutter 1-4 can form a continuous axial resection action relative to the resection window 1-5 based on the axial rotation; and when the second sleeve 1-3 shields the resection window 1-5, the resection window 1-5 is in a closed state.

[0238] As shown in FIG. 36, FIG. 39 and FIG. 40, the rotary cutting assembly 1 is provided with a tissue locking member 7-1, which can be a puncture needle. The tissue locking member 7-1 is sleeved with a boss-shaped barb structure 1-11, and a first elastic member 1-8 is wound on the end of the tissue locking member 7-1 away from the resection window 1-5. The outer side of the tissue locking member 7-1 is further provided with a third sleeve 1-9, which is provided with a second limiting groove 2-9. The tissue locking member 7-1 is in sliding connection with the second limiting groove 2-9 through a pin shaft 2-11, one end of which protrudes out of the third sleeve 1-9.

[0239] As shown in FIG. 36 and FIG. 42, the negative pressure assembly 4 is connected with a vacuumizing assembly 4-3, which is in communication with the internal cavity of the rotary cutting assembly 1, and the two are sealed by a sealing ring 4-2. The negative pressure assembly 4 in this embodiment is cooperatively arranged with the rotary cutting assembly 1, and can form a negative pressure state in the internal cavity of the rotary cutting assembly 1, and form a negative pressure adsorption force in the resection window 1-5, which can further prevent the formation of artificial thrombus and its complications in the resected tissue.

[0240] As shown in FIGS. 35, 36, 38, 39, 40, 41, 42 and 44, the myocardial rotary cutting system 400 further comprises a mechanical driving assembly 200, which comprises a trigger 20-1, a hinge 20-2, a second elastic member 20-3, a rack 20-4, a catch 20-5, a torsional spring 20-6, a limit pin 2-8 and a second bevel gear 20-7. The tissue locking member 7-1 is connected with the catch 20-5. The hinge 20-2 is fixed to the housing 2 by a screw 2-5 and is in sliding connection with the rack 20-4 by a screw 2-11. When the rotary cutting assembly 1 is inserted into the tissue to be operated, the negative pressure assembly 4 is turned on, and then the trigger 20-1 is manually cocked. The trigger 20-1 drives the hinge 20-2 to move, the hinge 20-2 drives the rack 20-4 to move, the rack 20-4 drives the second bevel gear 20-7 to move, and the second bevel gear 20-7 drives the first bevel gear 1-7 to rotate by a preset angle, so that the resection window 1-5 is opened. After the tissue is sucked into the resection window 1-5, the tissue locking member 7-1 instantaneously pierces the tissue under the release of the trigger 20-1 and the limit pin 2-8, so as to puncture and fix the target in the cavity from the resection window 1-5. Continue to cock the trigger 20-1 until the bottom. The second bevel gear 20-7 drives the first bevel gear 1-7 to rotate 180° to cut off the target tissue. Release the trigger 20-1. Under the action of the torsional spring 20-6, the trigger 20-1 is reset, the resection window 1-5 is closed, and the catch 20-5 drives the tissue locking member 7-1 and the tissue compression assembly 60 to make the rotary cut tissue return to the tissue storage bin 1-6. At the same time, the rack is reset, the puncture needle is reset, the catch is released under the action of the spring force, the catch is reset, and the next round of resection work is prepared. The myocardial rotary cutting system of the application can realize the locking, continuous mechanical rotary cutting and accurate resection of myocardial tissue under the condition of minimally invasive incision.

[0241] As shown in FIGS. 37, 40 and 44, the end of the rotary cutting assembly 1 is connected with a goose nose 5-0, the outer wall of which is smooth and can be smoothly inserted into the target position to reduce the resistance. The rotary cutting assembly 1 is provided with a tissue compression assembly 60. When the tissue locking member 7-1 and the barb structure 1-11 push the rotary cut tissue, the tissue compression assembly 60 moves it to the tissue storage bin 1-6, so as to avoid the risk of thrombosis caused by the tissue falling in the body.

[0242] Specifically, the tissue compression assembly 60 comprises a compression member 6-4 and a connecting rod 6-9. One end of the connecting rod 6-9 is connected with the compression member 6-4, and the other end of the connecting rod 6-9 is connected with the mechanical driving assembly 20. The compression member 6-4 is located between the tissue storage bin 1-6 and the resection window 1-5, and the tissue locking member 7-1 is located on one side of the connecting rod 6-9. The compression member 6-4 has an avoiding groove 6-8 to avoid the tissue locking member 7-1.

[0243] The tissue resection window 1-5 is protected from being scratched during the whole process of the assembly entering into the myocardial chamber, and is closed when reaching the target position. By manually pulling the trigger of the mechanical driving assembly 200, the last second bevel gear 20-7 rotates the first bevel gear 1-7 by a preset angle, so that the tissue resection window 1-5 is opened. After the tissue resection is completed, the trigger is released, and the window is closed to avoid scratching the tissue during the process of withdrawing the assembly from the human tissue, thereby causing inflammation or infection. The preset angle is 0° to 180°.

[0244] The opening direction of the tissue resection window 1-5 in the embodiment is arranged vertically to the ground on the left side of the instrument, and since the target is on the left side of the rotary cutting rod when the instrument enters from the apex of the heart, the situation that the left hand of the main doctor is used habitually can be effectively solved. The surface of the tissue resection inner cavity body of the rotary cutting assembly 1 is formed with an ultrasonic imaging enhancement feature, or the tissue resection cavity body in the assembly uses a high polymer material added with barium sulfate to enhance the ultrasonic imaging property.

[0245] Compared with the prior art, the myocardial rotary cutting system with barbed puncture needles provided by the embodiment has the following beneficial effects:

[0246] (1) The myocardial resection system provided by the embodiment has mechanical interconnection between each functional assembly, and each functional assembly has a reset function. Therefore, the target tissue is continuously resected in the body at the same time by introducing the rotary cutting tissue and storage, the myocardial resection is continuously performed until the treatment effect is achieved, the operation efficiency is further increased, the risk of bleeding is reduced, and the success rate of the operation is increased.

[0247] (2) The rotary cutting window of the myocardial resection system provided by the embodiment is oriented to facilitate the resection of the myocardium below the interventricular septum and the myocardium in the apex direction, and is suitable for the main doctor who is used to using the left hand.

[0248] (3) The myocardial resection system provided by the embodiment can realize a minimally invasive incision (4 cm) in actual application, reduce the damage to the heart and the amount of bleeding during the operation. The heart does not stop beating, the amount of myocardial resection is accurately grasped, the resection scheme is flexible, and the treatment effect is achieved at one time.

[0249] (4) The myocardial resection system provided by the embodiment can realize single-handed operation in actual application, and the single-handed operation has high stability, does not shift, is accurately positioned, and can realize one-key full-automatic completion of the actions of opening the window, adsorbing, rotary cutting, storing the tissue, and closing the window, thereby avoiding the displacement difference caused by double-handed operation and the complications caused thereby.

[0250] As shown in FIGS. 45-53, the fifth embodiment of the present application provides a myocardial resection system 500, which is a mechanical rotary cutting barb puncture needle myocardial resection system, and the myocardial resection system 500 comprises a housing 2, and a rotary cutting assembly 1, a mechanical drive assembly 20 and a negative pressure assembly 4 are arranged in the housing 2.

[0251] The rotary cutting assembly 1 comprises a second sleeve 1-3, one end of the second sleeve 1-3 is connected with a first bevel gear 1-7, and the other end of the second sleeve 1-3 is formed with a rotary cutting knife 1-4, as shown in FIG. 48. The second sleeve 1-3 extends out of the housing 2, and the internal cavity thereof is in communication with the internal cavity of the housing 2. The second sleeve 1-3 is sleeved with a first sleeve 1-2 on the side away from the housing 2, and the first sleeve 1-2 is provided with a resection window 1-5, which is in communication with the internal cavity of the second sleeve 1-3. The rotary cutting knife 1-4 can form a continuous axial resection action relative to the resection window based on axial rotation. When the second sleeve 1-3 blocks the resection window 1-5, the resection window 1-5 is in a closed state. The first sleeve 1-2 in this embodiment is connected with a goose nose 5-0 at the end, and the first sleeve 1-2 is arranged in gap cooperation with the inner wall of the second sleeve 1-3. The outer wall of the goose nose 5-0 is smooth, which can be smoothly inserted into the target position and reduce the obstruction.

[0252] As shown in FIGS. 45, 46, 49, 50 and 52, the rotary cutting assembly 1 is provided with a tissue locking member 7-1, and a plurality of barb structures 1-11 are arranged on the tissue locking member 7-1. At least two groups of barb structures 1-11 are oppositely arranged, and a plurality of groups of barb structures are arranged along the length direction of the tissue locking member 7-1. A first elastic member 1-8 is wound on the end of the tissue locking member 7-1 away from the second sleeve 1-3. The first elastic member 1-8 can be a spring, which is used to give the tissue locking member 7-1 an instantaneous forward launching force and facilitate the reset of the tissue locking member 7-1. A third sleeve 1-9 is sleeved on the tissue locking member 7-1, which is a puncture needle sleeve and is used to protect the tissue locking member 7-1. A pin shaft 2-11 is arranged on the third sleeve 1-9, the pin shaft 2-11 extends from the second limiting groove 2-9 and cooperates with the buckle 20-5, which can fix the tissue locking member 7-1 or assist the tissue locking member 7-1 to move along the extension direction of the second limiting groove 2-9. The negative pressure assembly 4 is connected with a vacuum pumping assembly 4-3, which is in communication with the internal cavity of the rotary cutting assembly 1. The vacuum pumping assembly 4-3 plays a role of in-pipe sealing through a sealing ring 4-2, so that a negative pressure state can be formed in the internal cavity of the entire rotary cutting assembly 1. A negative pressure adsorption force is formed in the resection window 1-5, and the tissue locking member 7-1 pierces and fixes the tissue at the same time, so that the safety of the rotary resection tissue is higher, and the artificial thrombus and its complications of the resected tissue can be further prevented.

[0253] As shown in FIG. 45, FIG. 46, FIG. 50 and FIG. 52, the mechanical driving assembly 20 comprises a trigger 20-1, a hinge 20-2, a second elastic member 20-3, a rack 20-4, a catch 20-5, a torsion spring 20-6, a limit pin 2-8 and a second bevel gear 20-7, and the tissue locking member 7-1 is connected with the catch 20-5. The hinge 20-2 is fixed on the shell 2 by a screw 2-11, and a stepped shaft 2-51 is connected on the hinge 20-2, which is used to limit the position of the hinge 20-2. Specifically, the rack 2-4 has a third limit slot 2-41, the extending direction of which is the same as the moving direction of the tissue locking member 7-1, the hinge 20-2 has a fourth limit slot 20-21, the extending direction of which intersects with the extending direction of the third limit slot 2-41, the stepped shaft 2-51 passes through the third limit slot 2-41 and the fourth limit slot 20-21 and can slide in the third limit slot 2-41 and the fourth limit slot 20-21, and the third limit slot 2-41 and the fourth limit slot 20-21 cooperate with the stepped shaft 2-51 to limit the position of the hinge 20-2.

[0254] When the rotary cutting assembly 1 is movable into the tissue needing operation, the negative pressure assembly 4 is opened, then the trigger 20-1 is manually cocked, the trigger 20-1 drives the hinge 20-2 to move, the hinge 20-2 drives the rack 20-4 to move, the rack 20-4 drives the second bevel gear 20-7 to move, the second bevel gear 20-7 drives the first bevel gear 1-7 to rotate the second sleeve 1-3, so that the resection window 1-5 is opened, after the tissue is sucked into the resection window 1-5, the tissue locking member 7-1 instantaneously pierces the tissue under the release of the trigger 20-1 and the limit pin 2-8, so as to puncture and fix the target entering the cavity from the resection window 1-5, the trigger 20-1 is continuously cocked until the bottom, the second bevel gear 20-7 drives the first bevel gear 1-7 to rotate the rotary cutting blade 180° to cut the target tissue, the trigger 20-1 is released, under the action of the torsion spring 20-6, the trigger 20-1 is reset, the resection window 1-5 is closed, the catch 20-5 drives the tissue locking member 7-1 to make the rotary cut tissue return to the tissue storage bin 1-6 of the rotary cutting assembly 1. At the same time, the rack 20-4 is reset, the tissue locking member 7-1 is reset, the catch 20-5 is released, under the action of the second elastic member 20-3, the catch 20-5 is reset, and the next round of resection work is prepared. The myocardial resection system of the present application can realize the locking of the tissue, the continuous mechanical rotary cutting and the accurate resection of the myocardial tissue in the minimally invasive incision state.

[0255] As shown in FIG. 47 and FIG. 51, the rotary cutting assembly 1 is provided with a silica gel sheet 1-111, when the tissue locking member 7-1 and the barb structure 1-11 effectively push the rotary cut tissue, the silica gel sheet 1-111 is used to leave the tissue in the tissue storage bin 1-6, so as to avoid the risk of thrombosis caused by the tissue falling in the body.

[0256] As shown in Figure 49, during the process of the entire assembly entering the myocardial chamber, the tissue resection window 1-5 is protected from being scratched, when reaching the target position, the resection window 1-5 is closed, by manually cocking the trigger of the mechanical drive assembly 20, the trigger drives the hinge 20-2, the hinge 20-2 drives the rack 20-4, the rack 20-4 drives the second bevel gear 20-7, the second bevel gear 20-7 drives the first bevel gear 1-7, rotates a certain angle to open the resection window 1-5, after completing the tissue resection, release the trigger 20-1, the resection window 1-5 is closed, to avoid the entire assembly from scratching the tissue during the process of withdrawing from the human tissue, thereby causing inflammation or infection.

[0257] The resection window 1-5 opening direction is set on the left side of the instrument and perpendicular to the ground, since when the instrument enters from the apex of the heart, the target is on the left side of the rotary cutting rod, thereby effectively solving the situation of the surgeon's habitual left hand.

[0258] Compared with the prior art, the embodiment of the application provides a myocardial resection system with a mechanical rotary cutting barbed puncture needle, which has the following beneficial effects:

[0259] (1) The myocardial resection system provided by the application has mechanical interconnection between each functional assembly, and all has a reset function, thereby innovatively introducing rotary cutting tissue and storage, achieving the target tissue resection in the body at the same time, achieving continuous myocardial resection until the treatment effect is achieved, further increasing the operation efficiency, reducing the risk of bleeding, and increasing the success rate of operation.

[0260] (2) The myocardial resection system provided by the application has a rotary cutting window direction that is beneficial to resecting the myocardium below the interventricular septum of the aortic valve and the myocardium in the apex direction, and is suitable for left-handed doctors.

[0261] (3) The myocardial resection system provided by the application can realize a minimally invasive incision (about 4 cm) in actual application, reduce the damage to the heart and the amount of bleeding during the operation. The heart does not stop beating, the amount of myocardial resection is accurately grasped, the resection scheme is flexible, and the treatment effect is achieved at one time.

[0262] (4) The myocardial resection system provided by the application can realize single-handed operation in actual application, and the single-handed operation has high stability, does not shift, is accurately positioned, can realize one-key full-automatic completion of the window opening, adsorption, rotary cutting, storage of tissue, and window closing actions, and avoids the displacement difference caused by double-handed operation and the complications caused thereby.

[0263] Referring to FIGS. 1-53, the present application provides a myocardial resection system, which comprises a resection assembly 1, the resection assembly 1 comprising a resection cutter 1-4, the resection cutter 1-4 comprising one of a laser cutter, a spiral cutter and an arc cutter; the myocardial resection system with the laser cutter is suitable for a precise hemostasis operation scene; the myocardial resection system with the spiral cutter is suitable for an operation scene requiring continuous pushing of tissue; and the myocardial resection system with the arc cutter is suitable for an operation scene not requiring continuous pushing of tissue.

[0264] In some embodiments of the present application, the resection assembly 1 further comprises a first sleeve 1-2, the first sleeve 1-2 being formed with a resection window 1-5 in communication with an internal cavity of the resection assembly 1; the myocardial resection system further comprises a negative pressure assembly 4 in communication with the internal cavity of the resection assembly; under the action of negative pressure generated by the negative pressure assembly 4, the myocardial tissue to be resected is adsorbed at the resection window 1-5; under the action of external force, the resection cutter 1-4 rotates based on the axial rotation of the resection assembly to resect the myocardial tissue to be resected.

[0265] In some embodiments of the present application, the resection assembly 1 further comprises a second sleeve 1-3 connected with the first sleeve 1-2; when the first sleeve 1-2 rotates relative to the second sleeve 1-3 to a first position under the action of external force, the resection window 1-5 is in an open state; when the first sleeve 1-2 rotates relative to the second sleeve 1-3 to a second position under the action of external force, the second sleeve 1-3 blocks the resection window 1-5, and the resection window 1-5 is in a closed state.

[0266] In some embodiments of the present application, the first sleeve 1-2 is sleeved on the outer wall of the second sleeve 1-3 or the second sleeve 1-3 is sleeved on the outer wall of the first sleeve 1-2; one of the first sleeve 1-2 and the second sleeve 1-3 rotates, and the other is stationary.

[0267] In some embodiments of the present application, the myocardial resection system further comprises: a first driving assembly 6 connected with one of the first sleeve 1-2 and the second sleeve 1-3 to drive one of the first sleeve 1-2 and the second sleeve 1-3 to rotate based on the axial rotation of the resection assembly relative to the other; and a second driving assembly 5 connected with the resection cutter 1-4 to drive the resection cutter 1-4 to rotate based on the axial rotation of the resection assembly.

[0268] In some embodiments of the present application, the myocardial resection system further comprises: an electronic control assembly 3 connected with the first driving assembly 6, the second driving assembly 5 and the negative pressure assembly 4 respectively to control the first driving assembly 6, the second driving assembly 5 and the negative pressure assembly 4 to work in real time.

[0269] In some embodiments of the present application, the second sleeve 1-3 is sleeved outside the first sleeve 1-2, the rotary cutting cutter 1-4 is arranged at one end of the second sleeve 1-3, the first driving assembly 6 and the second driving assembly 5 are the same driving assembly, and under the driving of the first driving assembly 6 or the second driving assembly 5, the rotary cutting cutter 1-4 switches between the open state and the closed state of the resection window 1-5 in the process of rotary cutting.

[0270] In some embodiments of the present application, the first driving assembly 6 or the second driving assembly 5 includes a first driving motor 6-0, a first gear 6-1 and a second gear 6-2, the output shaft of the first driving motor 6-0 is connected with the first gear 6-1, the first gear 6-1 and the second gear 6-2 are in gear engagement, and one end of the second sleeve 1-3 is connected with the second gear 6-2.

[0271] In some embodiments of the present application, the second sleeve 1-3 is sleeved outside the first sleeve 1-2, the first driving assembly 6 includes a first driving motor 6-0, a first gear 6-1 and a second gear 6-2, the output shaft of the first driving motor 6-0 is connected with the first gear 6-1, the first gear 6-1 and the second gear 6-2 are in gear engagement, one end of the second sleeve 1-3 is connected with the second gear 6-2, and the other end of the second sleeve 1-3 is sleeved on the first sleeve 1-2.

[0272] In some embodiments of the present application, the second driving assembly 5 includes a second driving motor 5-1, a third gear 2-1, a fourth gear 2-2 and a first connecting shaft 2-3, the output shaft of the second driving motor 5-1 is connected with the third gear 2-1, the third gear 2-1 and the fourth gear 2-2 are in gear engagement, one end of the first connecting shaft 2-3 is connected with the fourth gear 2-2, the other end of the first connecting shaft 2-3 is connected with the rotary cutting cutter 1-4, the rotary cutting cutter 1-4 is a laser resection cutter and is used for exciting a laser energy column 2-5.

[0273] In some embodiments of the present application, the first sleeve 1-2 is sleeved outside the second sleeve 1-3, and the rotary cutting cutter 1-4 is arranged at one end of the second sleeve 1-3; the myocardial rotary cutting system further includes a mechanical driving assembly 20 connected with the second sleeve 1-3 to drive the second sleeve 1-3 to rotate; under the driving of the mechanical driving assembly 20, the resection window 1-5 switches between the open state and the closed state, and the rotary cutting cutter 1-4 performs rotary cutting operation.

[0274] In some embodiments of the present application, the myocardial rotary cutting system further comprises a housing 2, the mechanical driving assembly 20 comprises a trigger 20-1, a first bevel gear 1-7, a hinge 20-2, a rack 20-4 and a second bevel gear 20-7, the trigger 20-1 is connected with the hinge 20-2, the hinge 20-2 is slidingly connected with the rack 20-4 and rotatably connected with the housing 2, the rack 20-4 is meshingly connected with the second bevel gear 20-7, the second bevel gear 20-7 is meshingly connected with the first bevel gear 1-7, the first bevel gear 1-7 is connected with the end of the second sleeve 1-3 away from the rotary cutting knife 1-4, and the hinge 20-2 is fixedly connected with the housing 2; wherein by manually cocking the trigger 20-1, the trigger 20-1 drives the hinge 20-2 to move, the hinge 20-2 drives the rack 20-4 to move, the rack 20-4 drives the second bevel gear 20-7 to move, and the second bevel gear 20-7 drives the first bevel gear 1-7 to rotate the first sleeve 1-2.

[0275] In some embodiments of the present application, the myocardial rotary cutting system further comprises a tissue locking member 7-1 arranged in the internal cavity of the rotary cutting assembly 1 and used for reciprocating along the axial direction of the rotary cutting assembly 1 under the action of an external force to fix the myocardial tissue to be removed which is adsorbed at the resection window 1-5; wherein the mechanical driving assembly 20 is connected with the tissue locking member 7-1 and used for driving the tissue locking member 7-1 to reciprocate along the axial direction of the rotary cutting assembly 1.

[0276] In some embodiments of the present application, the tissue locking assembly 70 further comprises a third sleeve 1-9, and the tissue locking member 7-1 is arranged in the third sleeve 1-9; the third sleeve 1-9 has a first limiting groove 2-10, the tissue locking member 7-1 is limitingly connected with the trigger 20-1 through a limiting pin 2-8, and when the trigger 20-1 rotates, the limiting pin 2-8 slides in the first limiting groove 2-10 along the axial direction of the rotary cutting assembly 1 to drive the tissue locking member 7-1 to move along the axial direction of the rotary cutting assembly 1.

[0277] In some embodiments of the present application, the third sleeve 1-9 has a second limiting groove 2-9, and the tissue locking member 7-1 is in sliding connection with the second limiting groove 2-9 through a pin shaft 2-11, one end of the pin shaft 2-11 protruding from the third sleeve 1-9; the mechanical driving assembly 20 further comprises a buckle 20-5, a first elastic member 1-8 and a second elastic member 20-3, the first elastic member 1-8 is arranged in the third sleeve 1-9, one end of the first elastic member 1-8 is connected with the third sleeve 1-9, and the other end is connected with one end of the tissue locking member 7-1 away from the resection window 1-5, the second elastic member 20-3 is located above the rack 20-4 and connected with the buckle 20-5, and the buckle 20-5 is in sliding connection with the third sleeve 1-9; under the action of an external force, the buckle 20-5 can slide on the third sleeve 1-9 away from the resection window 1-5, one end of the pin shaft 2-11 protruding from the third sleeve 1-9 abuts against the buckle 20-5, the pin shaft 2-11 and the buckle 20-5 cooperate to drive the tissue locking member 7-1 to move away from the resection window 1-5, and the first elastic member 1-8 and the second elastic member 20-3 are compressed; when the external force disappears, the buckle 20-5 slides on the third sleeve 1-9 towards the resection window 1-5, the trigger 20-1 is buckled, and under the elastic force of the first elastic member 1-8 and the second elastic member 20-3, the tissue locking member 7-1 moves towards the resection window 1-5 and locks the myocardial tissue to be resected.

[0278] In some embodiments of the present application, the mechanical driving assembly 20 further comprises a torsional spring 20-6 connected between the trigger 20-1 and the housing 2 and used to drive the trigger 20-1 to reset.

[0279] In some embodiments of the present application, the myocardial rotary resection system further comprises a vacuum extraction assembly 4-3, the negative pressure assembly 4 is in communication with the vacuum extraction assembly 4-3, and the vacuum extraction assembly 4-3 is arranged on the third sleeve 1-9.

[0280] In some embodiments of the present application, the myocardial rotary resection system further comprises: a tissue locking member 7-1 arranged in the internal cavity of the rotary resection assembly 1 and used to reciprocate along the axial direction of the rotary resection assembly 1 under the action of an external force to fix the myocardial tissue to be resected adsorbed at the resection window 1-5; and a third driving assembly 61 connected with the tissue locking member 7-1 and used to drive the tissue locking member 7-1 to reciprocate along the axial direction of the rotary resection assembly 1.

[0281] In some embodiments of the present application, the tissue locking member 7-1 is a puncture needle.

[0282] In some embodiments of the present application, the tissue locking member 7-1 is a puncture needle with a barb structure 1-11.

[0283] In some embodiments of the present application, the internal cavity of the rotary cutting assembly 1 is provided with a tissue storage bin 1-6; the myocardial rotary cutting system further comprises a silicone sheet 1-111, which is arranged in the internal cavity of the rotary cutting assembly 1 and located between the tissue storage bin 1-6 and the resection window 1-5, and the puncture needle passes through the silicone sheet 1-111; wherein, after the rotary cutting action is completed, the puncture needle returns with the resected myocardial tissue and passes through the silicone sheet 1-111, and when the puncture needle locks the myocardial tissue to be resected again, the silicone sheet 1-111 traps the resected myocardial tissue into the tissue storage bin 1-6.

[0284] In some embodiments of the present application, the internal cavity of the rotary cutting assembly 1 is provided with a tissue storage bin 1-6; the myocardial rotary cutting system further comprises: a tissue compression assembly 60, which is arranged in the internal cavity of the rotary cutting assembly 1 and used for compressing the resected myocardial tissue during movement and storing the resected myocardial tissue into the tissue storage bin 1-6; and a fourth driving assembly 71, which is connected with the tissue compression assembly 60 and used for driving the compression member 6-4 to reciprocate along the axial direction of the rotary cutting assembly 1.

[0285] In some embodiments of the present application, the tissue compression assembly 60 comprises: a compression member 6-4, which is used for compressing the resected myocardial tissue during movement; and a first connecting rod 6-3, which connects the compression member 6-4 and the fourth driving assembly 71.

[0286] In some embodiments of the present application, the tissue compression assembly 60 further comprises: a sliding block 6-6, which is connected with the end of the connecting rod away from the compression member 6-4; and a second connecting rod 6-7, which connects the sliding block 6-6 and the fourth driving assembly 71; wherein, the sliding block 6-6 is slidingly connected with the second connecting rod 6-7 or the second connecting rod 6-7 is a lead screw, and the fourth driving assembly 71 is used for driving the sliding block 6-6 to reciprocate on the second connecting rod 6-7, so as to drive the compression member 6-4 to reciprocate along the axial direction of the rotary cutting assembly 1.

[0287] In some embodiments of the present application, the rotary cutting cutter 1-4 is a laser resection cutter, and the laser resection cutter is used for exciting a laser energy column 2-5, which can resect the myocardial tissue to be resected based on the axial rotation of the resection assembly.

[0288] In some embodiments of the present application, the diameter of the laser energy column 2-5 is 0.1 mm to 0.2 mm.

[0289] In some embodiments of the present application, the rotary cutting cutter 1-4 rotates 180° along the axial direction of the rotary cutting assembly 1 each time.

[0290] In some embodiments of the present application, the first sleeve 1-2 is sleeved on the outer wall of the second sleeve 1-3, and the end of the second sleeve 1-3 is connected with a goose nose 5-0, and the outer wall of the goose nose 5-0 is smooth.

[0291] In some embodiments of the present application, the negative pressure assembly 4 comprises a vent tube and a vacuum extraction assembly 4-3 connected to the vent tube, the vacuum extraction assembly 4-3 is in communication with the inner cavity of the first cannula 1-2 through an air nozzle, and the air nozzle is sealed with the inner cavity of the first cannula 1-2 through a sealing ring.

[0292] In some embodiments of the present application, the rotary cutting cutter 1-4 comprises a rotary cutting shaft 1-41 and a blade, the blade is arc-shaped, a non-helical blade 1-42 is connected to one end of the rotary cutting shaft 1-41, and the other end of the rotary cutting shaft 1-41 is connected to the second driving assembly 5.

[0293] In some embodiments of the present application, the myocardial rotary cutting system further comprises an energy supply assembly 79 connected to the first driving assembly 6 and the second driving assembly 5 respectively to provide energy for the first driving assembly 6 and the second driving assembly 5.

[0294] In some embodiments of the present application, the myocardial rotary cutting system further comprises a housing 2, the rotary cutting assembly 1 is arranged outwardly from the housing 2, and the internal cavity of the rotary cutting assembly 1 is in communication with the internal cavity of the housing 2; wherein the energy supply assembly 79, the first driving assembly 6, the second driving assembly 5 and the negative pressure assembly 4 are arranged in the housing 2.

[0295] In some embodiments of the present application, the surgical procedure of the myocardial rotary cutting system during surgery is in sequence: opening of the resection window 1-5, negative pressure adsorption, tissue locking, continuous resection, tissue storage and assembly resetting.

[0296] In some embodiments of the present application, a high molecular material with barium sulfate is added to the cavity wall of the internal cavity of the rotary cutting assembly 1.

[0297] In some embodiments of the present application, the tissue compression assembly 60 comprises a compression member 6-4 and a connecting rod 6-9, the compression member 6-4 is fixedly connected to one end of the connecting rod 6-9, and the other end of the connecting rod 6-9 is connected to the mechanical driving assembly 20; the compression member 6-4 is located between the tissue storage bin 1-6 and the resection window 1-5, and the puncture needle is located on one side of the connecting rod 6-9.

[0298] In some embodiments of the present application, the compression member 6-4 has an avoiding groove 6-8, the avoiding groove 6-8 is located on the movement path of the tissue locking member 7-1, and is used for avoiding the tissue locking member 7-1.

[0299] In some embodiments of the present application, the myocardial tissue to be resected is the myocardial tissue of the interventricular septum below the aortic valve and the myocardial tissue in the apical direction.

[0300] Referring to FIGS. 1-53, the application also provides a myocardial resection system, which comprises a resection assembly 1 and a resection driving assembly connected with the resection assembly 1 and used for driving the resection assembly 1 to perform a resection operation; wherein the resection driving assembly comprises an electric driving mode or a mechanical driving mode, the electric driving mode is suitable for a first positioning accuracy surgical scene, and the mechanical driving mode is suitable for a second positioning accuracy surgical scene, the first positioning accuracy is greater than the second positioning accuracy.

[0301] In some embodiments of the application, the electric driving mode is required for a first response speed surgical scene, and the mechanical driving mode is suitable for a second response speed surgical scene, the first response speed is greater than the second response speed.

[0302] In some embodiments of the application, the myocardial resection system further comprises an electronic control assembly 3, which one-key controls the start and stop of the resection driving assembly.

[0303] In some embodiments of the application, the resection assembly 1 comprises a first sleeve 1-2, which is formed with a resection window 1-5 in communication with an internal cavity of the resection assembly 1; the resection assembly 1 further comprises a second sleeve 1-3 connected with the first sleeve 1-2; the first sleeve 1-2 is sleeved on the outer wall of the second sleeve 1-3 or the second sleeve 1-3 is sleeved on the outer wall of the first sleeve 1-2; the resection driving assembly comprises a first driving assembly 6, which drives one of the first sleeve 1-2 and the second sleeve 1-3 to rotate axially based on the resection assembly relative to the other, so as to switch the resection window 1-5 between an open state and a closed state; the electronic control assembly 3 is signal connected with the first driving assembly 6 and one-key controls the start and stop of the first driving assembly 6.

[0304] In some embodiments of the application, the resection assembly 1 comprises a resection cutter 1-4, and the resection driving assembly comprises a second driving assembly 5 connected with the resection cutter 1-4 to drive the resection cutter 1-4 to rotate axially based on the resection assembly; the electronic control assembly 3 is signal connected with the second driving assembly 5 and one-key controls the start and stop of the second driving assembly 5.

[0305] In some embodiments of the application, the myocardial resection system further comprises a negative pressure assembly 4 and a vacuum pumping assembly 4-3, the negative pressure assembly 4 is respectively in communication with the internal cavity of the resection assembly and the vacuum pumping assembly 4-3; the electronic control assembly 3 is signal connected with the vacuum pumping assembly 4-3 and one-key controls the start and stop of the vacuum pumping assembly 4-3.

[0306] In some embodiments of the present application, the myocardial rotary cutting system further comprises a tissue locking member 7-1 arranged in the internal cavity of the rotary cutting assembly 1 and configured to reciprocate along the axial direction of the rotary cutting assembly 1 under the action of an external force to fix the myocardial tissue to be removed at the resection window 1-5, and a third driving assembly 61 connected with the tissue locking assembly 70 and configured to drive the tissue locking member 7-1 to reciprocate along the axial direction of the rotary cutting assembly 1; the electronic control assembly 3 is signal connected with the third driving assembly 61 and controls the start and stop of the third driving assembly 61 by one key.

[0307] In some embodiments of the present application, the myocardial rotary cutting system further comprises a tissue compression assembly 60 arranged in the internal cavity of the rotary cutting assembly 1 and configured to compress the removed myocardial tissue during movement and store the removed myocardial tissue into the tissue storage bin 1-6, and a fourth driving assembly 71 connected with the tissue compression assembly 60 and configured to drive the compression member 6-4 to reciprocate along the axial direction of the rotary cutting assembly 1; the electronic control assembly 3 is signal connected with the fourth driving assembly 71 and controls the start and stop of the fourth driving assembly 71 by one key.

[0308] In some embodiments of the present application, the tissue locking member 7-1 is a puncture needle.

[0309] In some embodiments of the present application, the tissue locking member 7-1 is a puncture needle with a barb structure 1-11.

[0310] In some embodiments of the present application, the internal cavity of the rotary cutting assembly 1 is provided with a tissue storage bin 1-6; the myocardial rotary cutting system further comprises a silica gel sheet 1-111 arranged in the internal cavity of the rotary cutting assembly 1 and located between the tissue storage bin 1-6 and the resection window 1-5, and the puncture needle passes through the silica gel sheet 1-111; wherein, after the rotary cutting action is completed, the puncture needle returns with the removed myocardial tissue and passes through the silica gel sheet 1-111, and when the puncture needle locks the myocardial tissue to be removed again, the silica gel sheet 1-111 traps the removed myocardial tissue into the tissue storage bin 1-6.

[0311] In some embodiments of the present application, the tissue compression assembly 60 comprises a compression member 6-4 configured to compress the removed myocardial tissue during movement, and a first connecting rod 6-3 connected with the compression member 6-4 and the fourth driving assembly 71.

[0312] In some embodiments of the present application, the tissue compression assembly 60 further comprises a slider 6-6 connected to one end of the connecting rod away from the compression member 6-4, a second connecting rod 6-7 connected to the slider 6-6 and the fourth driving assembly 71, wherein the slider 6-6 is slidingly connected to the second connecting rod 6-7 or the second connecting rod 6-7 is a lead screw, and the fourth driving assembly 71 is used to drive the slider 6-6 to reciprocate on the second connecting rod 6-7, so as to drive the compression member 6-4 to reciprocate along the axial direction of the rotary cutting assembly 1.

[0313] In some embodiments of the present application, the first sleeve 1-2 is sleeved outside the second sleeve 1-3, and the rotary cutting knife 1-4 is arranged at one end of the second sleeve 1-3; the myocardial rotary cutting system further comprises a housing 2, and the mechanical driving assembly 20 comprises a trigger 20-1, a first bevel gear 1-7, a hinge 20-2, a rack 20-4, and a second bevel gear 20-7, the trigger 20-1 is connected to the hinge 20-2, the hinge 20-2 is slidingly connected to the rack 20-4 and rotatably connected to the housing 2, the rack 20-4 is meshingly connected to the second bevel gear 20-7, the second bevel gear 20-7 is meshingly connected to the first bevel gear 1-7, the first bevel gear 1-7 is connected to the end of the second sleeve 1-3 away from the rotary cutting knife 1-4, and the hinge 20-2 is fixedly connected to the housing 2; wherein by manually cocking the trigger 20-1, the trigger 20-1 drives the hinge 20-2 to move, the hinge 20-2 drives the rack 20-4 to move, the rack 20-4 drives the second bevel gear 20-7 to move, and the second bevel gear 20-7 drives the first bevel gear 1-7 to rotate the first sleeve 1-2.

[0314] In some embodiments of the present application, the myocardial rotary cutting system further comprises a tissue locking member 7-1 arranged in the internal cavity of the rotary cutting assembly 1 and used to reciprocate along the axial direction of the rotary cutting assembly 1 under the action of an external force, so as to fix the myocardial tissue to be removed which is adsorbed at the resection window 1-5; the mechanical driving assembly 20 is connected to the tissue locking member 7-1 and used to drive the tissue locking member 7-1 to reciprocate along the axial direction of the rotary cutting assembly 1.

[0315] In some embodiments of the present application, the tissue locking assembly 70 further comprises a third sleeve 1-9, and the tissue locking member 7-1 is arranged in the third sleeve 1-9; the third sleeve 1-9 has a first limiting groove 2-10, the tissue locking member 7-1 is limitingly connected to the trigger 20-1 through a limiting pin 2-8, and when the trigger 20-1 rotates, the limiting pin 2-8 slides in the first limiting groove 2-10 along the axial direction of the rotary cutting assembly 1, so as to drive the tissue locking member 7-1 to move along the axial direction of the rotary cutting assembly 1.

[0316] In some embodiments of the present application, the third sleeve 1-9 has a second limiting groove 2-9, and the tissue locking member 7-1 is in sliding connection with the second limiting groove 2-9 through a pin shaft 2-11, one end of the pin shaft 2-11 protruding from the third sleeve 1-9; the mechanical driving assembly 20 further comprises a buckle 20-5, a first elastic member 1-8 and a second elastic member 20-3, the first elastic member 1-8 is arranged in the third sleeve 1-9, one end of the first elastic member 1-8 is connected with the third sleeve 1-9, and the other end is connected with one end of the tissue locking member 7-1 away from the resection window 1-5, the second elastic member 20-3 is located above the rack 20-4 and connected with the buckle 20-5, and the buckle 20-5 is in sliding connection with the third sleeve 1-9; under the action of external force, the buckle 20-5 can slide on the third sleeve 1-9 away from the resection window 1-5, one end of the pin shaft 2-11 protruding from the third sleeve 1-9 abuts against the buckle 20-5, the pin shaft 2-11 and the buckle 20-5 cooperate to drive the tissue locking member 7-1 to move away from the resection window 1-5, and the first elastic member 1-8 and the second elastic member 20-3 are compressed; when the external force disappears, the buckle 20-5 slides on the third sleeve 1-9 towards the resection window 1-5, the trigger 20-1 is pulled, and under the elastic force of the first elastic member 1-8 and the second elastic member 20-3, the tissue locking member 7-1 moves towards the resection window 1-5 and locks the myocardial tissue to be resected.

[0317] In some embodiments of the present application, the mechanical driving assembly 20 further comprises a torsional spring 20-6, the torsional spring 20-6 connecting the trigger 20-1 and the housing 2 and being used to drive the trigger 20-1 to reset.

[0318] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and all these changes and improvements fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A myocardial transection system, characterized by, The rotating cutting assembly comprises a rotating cutting cutter, and the rotating cutting cutter comprises one of a laser cutting cutter, a spiral cutting cutter and an arc cutting cutter; The myocardial rotating cutting system with the laser cutting cutter is suitable for a precise hemostasis operation scene; The myocardial rotating cutting system with the spiral cutting cutter is suitable for an operation scene requiring continuous pushing of tissues; The myocardial rotating cutting system with the arc cutting cutter is suitable for an operation scene not requiring continuous pushing of tissues. The rotating cutting assembly further comprises a first sleeve, and the first sleeve is formed with a resection window in communication with an internal cavity of the rotating cutting assembly; 2. The myocardial resection system of claim 1, wherein, The myocardial rotating cutting system further comprises a negative pressure assembly in communication with the internal cavity of the resection assembly; Under the action of negative pressure generated by the negative pressure assembly, the myocardial tissue to be resected is adsorbed at the resection window; under the action of external force, the rotating cutting cutter resects the myocardial tissue to be resected based on the axial rotation of the resection assembly. The rotating cutting assembly further comprises a second sleeve connected with the first sleeve in a sleeved manner; 3. The myocardial resection system of claim 2, wherein the cutting head is configured to rotate about the longitudinal axis of the cutting head. When the first sleeve rotates to a first position relative to the second sleeve under the action of external force, the resection window is in an open state; when the first sleeve rotates to a second position relative to the second sleeve under the action of external force, the second sleeve blocks the resection window, and the resection window is in a closed state. The first sleeve is sleeved on the outer wall of the second sleeve, or the second sleeve is sleeved on the outer wall of the first sleeve; and / or 4. The myocardial resection system of claim 3, wherein the cutting head is configured to rotate about the longitudinal axis of the cutting head. One of the first sleeve and the second sleeve rotates, and the other is stationary. The myocardial rotating cutting system further comprises:

5. The myocardial resection system of any of claims 3-4, wherein, a first driving assembly connected with one of the first sleeve and the second sleeve to drive one of the first sleeve and the second sleeve to rotate relative to the other based on the axial rotation of the resection assembly; and a second driving assembly connected with the rotating cutting cutter to drive the rotating cutting cutter to rotate based on the axial rotation of the resection assembly. The myocardial rotating cutting system further comprises:

6. The myocardial resection system of claim 5, wherein the cutting head is configured to rotate about the longitudinal axis of the cutting head. an electronic control assembly connected with the first driving assembly, the second driving assembly and the negative pressure assembly, respectively, to control the first driving assembly, the second driving assembly and the negative pressure assembly to work in real time. The second sleeve is sleeved on the outside of the first sleeve, the rotating cutting cutter is arranged at one end of the second sleeve, the first driving assembly and the second driving assembly are the same driving assembly, under the driving of the first driving assembly or the second driving assembly, the resection window switches between the open state and the closed state in the process of rotating cutting of the rotating cutting cutter.

7. The myocardial resection system of claim 6, wherein the cutting head is configured to rotate about the longitudinal axis of the cutting head. The first driving assembly or the second driving assembly comprises a first driving motor, a first gear and a second gear, an output shaft of the first driving motor is connected with the first gear, the first gear and the second gear are arranged in meshing, and one end of the second sleeve is connected with the second gear.

8. The myocardial resection system of claim 7, wherein the cutting head is configured to rotate about the longitudinal axis of the cutting head. ​ 9. The system of claim 6, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The second sleeve is sleeved outside the first sleeve; the first driving assembly comprises a first driving motor, a first gear and a second gear, an output shaft of the first driving motor is connected with the first gear, the first gear and the second gear are arranged in meshing mode, one end of the second sleeve is connected with the second gear, and the other end of the second sleeve is sleeved on the first sleeve; and / or The second driving assembly comprises a second driving motor, a third gear, a fourth gear and a first connecting shaft, an output shaft of the second driving motor is connected with the third gear, the third gear and the fourth gear are arranged in meshing mode, one end of the first connecting shaft is connected with the fourth gear, and the other end of the first connecting shaft is connected with the rotary cutting knife; the rotary cutting knife is a laser cutting knife and is used for exciting the laser energy column; or The second driving assembly comprises a second driving motor, and the second driving motor is connected with the rotary cutting knife.

10. The myocardial resection system of any of claims 2-4, wherein, The first sleeve is sleeved outside the second sleeve, and the rotary cutting knife is arranged at one end of the second sleeve; The myocardial rotary cutting system further comprises a mechanical driving assembly connected with the second sleeve to drive the second sleeve to rotate; Under the driving of the mechanical driving assembly, the cutting window is switched between the open state and the closed state, and the rotary cutting knife performs the rotary cutting operation.

11. The myocardial resection system of claim 10, wherein the cutting head is configured to rotate at a speed of at least 100,000 rpm. The myocardial rotary cutting system further comprises a housing, the mechanical driving assembly comprises a trigger, a first bevel gear, a hinge, a rack and a second bevel gear, the trigger is connected with the hinge, the hinge is slidingly connected with the rack and rotationally connected with the housing, the rack is meshingly connected with the second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the first bevel gear is connected to an end of the second sleeve away from the rotary cutting knife, and the hinge is fixedly connected with the housing; Wherein, by manually cocking the trigger, the trigger drives the hinge to move, the hinge drives the rack to move, the rack drives the second bevel gear to move, and the second bevel gear drives the first bevel gear to rotate the first sleeve.

12. The myocardial resection system of claim 11, wherein the cutting head is configured to rotate at a speed of at least 100,000 rpm. The myocardial rotary cutting system further comprises: A tissue locking member arranged in an inner cavity of the rotary cutting assembly and used for reciprocating along an axial direction of the rotary cutting assembly under the action of an external force to fix the myocardial tissue to be cut arranged at the cutting window; Wherein, the mechanical driving assembly is connected with the tissue locking member and is used for driving the tissue locking member to reciprocate along the axial direction of the rotary cutting assembly.

13. The system of claim 11, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The tissue locking assembly further comprises a third sleeve, and the tissue locking member is arranged in the third sleeve; the third sleeve has a first limiting groove, the tissue locking member is limitedly connected with the trigger through a limiting pin, when the trigger rotates, the limiting pin slides in the first limiting groove along the axial direction of the rotary cutting assembly to drive the tissue locking member to move along the axial direction of the rotary cutting assembly.

14. The system of claim 13, wherein the distal end of the guide tube is configured to be positioned within the lumen of the heart. The third sleeve has a second limiting groove, the tissue locking member is slidingly connected with the second limiting groove through a pin shaft, and one end of the pin shaft protrudes from the third sleeve. The mechanical driving assembly further comprises a buckle, a first elastic member and a second elastic member, the first elastic member is arranged in the third sleeve, one end of the first elastic member is connected with the third sleeve, and the other end is connected with one end of the tissue locking member away from the resection window, the second elastic member is arranged above the rack and connected with the buckle, and the buckle is slidingly connected with the third sleeve; Under the action of an external force, the buckle can slide on the third sleeve in a direction away from the resection window, one end of the pin shaft protruding from the third sleeve abuts against the buckle, and the pin shaft and the buckle drive the tissue locking member to move in a direction away from the resection window, and the first elastic member and the second elastic member are compressed; When the external force disappears, the buckle slides on the third sleeve in a direction close to the resection window, the trigger is pulled, and the tissue locking member moves in a direction close to the resection window under the elastic force of the first elastic member and the second elastic member and locks the myocardial tissue to be resected.

15. The myocardial resection system of claim 13, wherein the cutting head is configured to rotate at a speed of at least 100,000 rpm. The mechanical driving assembly further comprises a torsional spring, the torsional spring connects the trigger and the shell and is used for driving the trigger to reset.

16. The system of claim 13, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The myocardial rotary cutting system further comprises a vacuum pumping assembly, the negative pressure assembly communicates with the vacuum pumping assembly, and the vacuum pumping assembly is arranged on the third sleeve.

17. The myocardial resection system of any of claims 2-4, wherein, The myocardial rotary cutting system further comprises: a tissue locking member arranged in the internal cavity of the rotary cutting assembly and used for reciprocating along the axial direction of the rotary cutting assembly under the action of an external force to fix the myocardial tissue to be resected adsorbed at the resection window; and a third driving assembly connected with the tissue locking member and used for driving the tissue locking member to reciprocate along the axial direction of the rotary cutting assembly.

18. The system of claim 17, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The tissue locking member is a puncture needle.

19. The system of claim 18, wherein the distal end of the cutting head is configured to rotate at a speed of at least 1000 rpm. The tissue locking member is a puncture needle with a barb structure.

20. The system of claim 18, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The internal cavity of the rotary cutting assembly is provided with a tissue storage bin; The myocardial rotary cutting system further comprises a silica gel sheet, the silica gel sheet is arranged in the internal cavity of the rotary cutting assembly and located between the tissue storage bin and the resection window, and the puncture needle penetrates through the silica gel sheet; After the rotary cutting action is completed, the puncture needle returns with the resected myocardial tissue and penetrates through the silica gel sheet, and when the puncture needle locks the myocardial tissue to be resected again, the silica gel sheet intercepts the resected myocardial tissue into the tissue storage bin.

21. The system of claim 17, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The internal cavity of the rotary cutting assembly is provided with a tissue storage bin; The myocardial rotary cutting system further comprises: a tissue compression assembly arranged in the internal cavity of the rotary cutting assembly and used for compressing the resected myocardial tissue during movement and storing the resected myocardial tissue into the tissue storage bin; and a fourth driving assembly connected with the tissue compression assembly and used for driving the compression member to reciprocate along the axial direction of the rotary cutting assembly.

22. The myocardial resection system of claim 21, wherein the cutting head is configured to rotate at a speed of at least 100,000 rpm. The tissue compression assembly comprises: a compression member used for compressing the resected myocardial tissue during movement; and a first connecting rod connecting the compression member and the fourth driving assembly.

23. The system of claim 22, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The tissue compression assembly further comprises: a sliding block connected with one end of the connecting rod away from the compression member; A second connecting rod is connected to the sliding block and the fourth driving assembly; The sliding block is slidingly connected to the second connecting rod or the second connecting rod is a screw rod, and the fourth driving assembly is configured to drive the sliding block to reciprocate on the second connecting rod, so as to drive the compression member to reciprocate along the axial direction of the rotary cutting assembly.

24. The system of any one of claims 1-6, wherein, The rotary cutting knife is a laser cutting knife, and the laser cutting knife is configured to generate a laser energy column, which can cut the myocardial tissue to be cut based on the axial rotation of the cutting assembly.

25. The system of claim 24, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart of the patient. The diameter of the laser energy column is 0.1mm-0.2mm.

26. The system of claim 5, wherein: The rotary cutting knife comprises a rotary cutting shaft and an arc-shaped blade, one end of the arc-shaped blade is connected to the rotary cutting shaft, and the other end of the rotary cutting shaft is connected to the second driving assembly. Or The rotary cutting knife comprises a rotary cutting shaft and a spiral-shaped blade, one end of the spiral-shaped blade is connected to the rotary cutting shaft, and the other end of the rotary cutting shaft is connected to the second driving assembly.

27. The system of claim 1, wherein, The rotary cutting knife rotates 180° along the axial direction of the rotary cutting assembly each time.

28. The system of claim 3, wherein, The first sleeve is sleeved on the outer wall of the second sleeve, the end of the second sleeve is connected with a goose nose, and the outer wall of the goose nose is smooth; and / or The negative pressure assembly comprises a breather pipe and a vacuumizing assembly connected with the breather pipe, the vacuumizing assembly is in communication with the inner cavity of the first sleeve through an air nozzle, and the air nozzle and the inner cavity of the first sleeve are sealed by a sealing ring.

29. The system of claim 5, wherein, The myocardial rotary cutting system further comprises: An energy supply assembly is connected with the first driving assembly and the second driving assembly respectively to provide energy for the first driving assembly and the second driving assembly.

30. The system of claim 29, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The myocardial rotary cutting system further comprises: A shell, the rotary cutting assembly is arranged outwardly from the shell, and the inner cavity of the rotary cutting assembly is in communication with the inner cavity of the shell; The energy supply assembly, the first driving assembly, the second driving assembly and the negative pressure assembly are arranged in the shell.

31. The system of claim 21, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The surgical procedure of the myocardial rotary cutting system during surgery is as follows: cutting window opening, negative pressure adsorption, tissue locking, continuous cutting, tissue storage and assembly resetting.

32. The system of claim 21, wherein: The tissue compression assembly comprises a compression member and a connecting rod, one end of the compression member is fixedly connected to the connecting rod, and the other end of the connecting rod is connected to a mechanical driving assembly; the compression member is located between the tissue storage bin and the cutting window, and the puncture needle is located on one side of the connecting rod.

33. The system of claim 22, wherein the distal end of the lumen is configured to receive a cutting head. The compression member is provided with an avoiding groove located on the movement path of the tissue locking member, which is used for avoiding the tissue locking member.

34. The system of claim 2, wherein, The myocardial tissue to be cut is the myocardial tissue of the interventricular septum below the aortic valve and the myocardial tissue in the apex direction; and / or A high polymer material containing barium sulfate is added to the cavity wall of the inner cavity of the rotary cutting assembly.

35. A myocardial transection system, comprising: The myocardial rotary cutting system comprises a rotary cutting assembly and a rotary cutting driving assembly, the rotary cutting driving assembly is connected with the rotary cutting assembly and is configured to drive the rotary cutting assembly to perform a rotary cutting operation. The rotation cutting driving assembly comprises an electric driving mode or a mechanical driving mode, the electric driving mode is suitable for a surgical scene requiring a first positioning precision, the mechanical driving mode is suitable for a surgical scene requiring a second positioning precision, and the first positioning precision is greater than the second positioning precision.

36. The system of claim 35, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The electric driving mode is suitable for a surgical scene requiring a first response speed, the mechanical driving mode is suitable for a surgical scene requiring a second response speed, and the first response speed is greater than the second response speed.

37. The system of claim 35, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The myocardial rotation cutting system further comprises an electronic control assembly, which one-key controls starting and stopping of the rotation cutting driving assembly.

38. The system of claim 37, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart of the patient. The rotation cutting assembly comprises a first sleeve, which is formed with a resection window in communication with an internal cavity of the rotation cutting assembly; the rotation cutting assembly further comprises a second sleeve connected with the first sleeve in a sleeving manner; the first sleeve is sleeved on an outer wall of the second sleeve or the second sleeve is sleeved on an outer wall of the first sleeve. The rotation cutting driving assembly comprises a first driving assembly, which drives one of the first sleeve and the second sleeve to rotate relative to the other one based on axial rotation of the resection assembly, so as to switch the resection window between an open state and a closed state. The electronic control assembly is signal connected with the first driving assembly and one-key controls starting and stopping of the first driving assembly.

39. The system of claim 37, wherein the distal end of the lumen is configured to receive a cutting head of a morcellator. The rotation cutting assembly comprises a rotation cutting knife, and the rotation cutting driving assembly comprises a second driving assembly, which is connected with the rotation cutting knife to drive the rotation cutting knife to rotate based on axial rotation of the resection assembly. The electronic control assembly is signal connected with the second driving assembly and one-key controls starting and stopping of the second driving assembly.

40. The system of claim 37, wherein the distal end of the guide tube is configured to be inserted into the left atrium of the heart. The myocardial rotation cutting system further comprises a negative pressure assembly and a vacuumizing assembly, the negative pressure assembly is respectively in communication with the internal cavity of the resection assembly and the vacuumizing assembly. The electronic control assembly is signal connected with the vacuumizing assembly and one-key controls starting and stopping of the vacuumizing assembly.

41. The system of claim 37, wherein the distal end of the lumen is configured to be inserted into the left atrium of the heart. The myocardial rotation cutting system further comprises a tissue locking member and a third driving assembly, the tissue locking member is arranged in the internal cavity of the rotation cutting assembly and is used to reciprocate along an axial direction of the rotation cutting assembly under external force to fix myocardial tissue to be resected which is adsorbed at the resection window, and the third driving assembly is connected with the tissue locking member and is used to drive the tissue locking member to reciprocate along the axial direction of the rotation cutting assembly. The electronic control assembly is signal connected with the third driving assembly and one-key controls starting and stopping of the third driving assembly.

42. The system of claim 41, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The myocardial rotation cutting system further comprises a tissue compression assembly and a fourth driving assembly, the tissue compression assembly is arranged in the internal cavity of the rotation cutting assembly and is used to compress resected myocardial tissue and store the resected myocardial tissue into the tissue storage bin during movement, and the fourth driving assembly is connected with the tissue compression assembly and is used to drive the compression member to reciprocate along the axial direction of the rotation cutting assembly. The electronic control assembly is signal connected with the fourth driving assembly and one-key controls starting and stopping of the fourth driving assembly.

43. The system of claim 41, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The tissue locking member is a puncture needle.

44. The system of claim 43, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The tissue locking member is a puncture needle with a barb structure.

45. The system of claim 43, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The internal cavity of the rotary cutting assembly is provided with a tissue storage bin. The myocardial rotary cutting system further comprises a silica gel sheet, which is arranged in the internal cavity of the rotary cutting assembly and between the tissue storage bin and the resection window, and the puncture needle passes through the silica gel sheet. After the rotary cutting action is completed, the puncture needle returns with the resected myocardial tissue and passes through the silica gel sheet, and when the puncture needle locks the myocardial tissue to be resected again, the silica gel sheet traps the resected myocardial tissue into the tissue storage bin.

46. The system of claim 42, wherein the distal end of the guide tube is configured to be inserted into the left atrium of the heart. The tissue compression assembly comprises: a compression member for compressing the resected myocardial tissue during movement; and a first connecting rod connecting the compression member and the fourth driving assembly.

47. The system of claim 46, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The tissue compression assembly further comprises: a sliding block connected to the end of the connecting rod away from the compression member; a second connecting rod connecting the sliding block and the fourth driving assembly; wherein the sliding block is slidingly connected to the second connecting rod or the second connecting rod is a lead screw, and the fourth driving assembly is used to drive the sliding block to reciprocate on the second connecting rod, so as to drive the compression member to reciprocate along the axial direction of the rotary cutting assembly.

48. The system of claim 46, wherein the distal end of the guide tube is configured to be inserted into the left atrium of the heart. The first sleeve is arranged outside the second sleeve, and the rotary cutting knife is arranged at one end of the second sleeve. The myocardial rotary cutting system further comprises a housing, and the mechanical driving assembly comprises a trigger, a first bevel gear, a hinge, a rack, and a second bevel gear, the trigger is connected to the hinge, the hinge is slidingly connected to the rack and rotationally connected to the housing, the rack is meshingly connected to the second bevel gear, the second bevel gear is meshingly connected to the first bevel gear, the first bevel gear is connected to the end of the second sleeve away from the rotary cutting knife, and the hinge is fixedly connected to the housing. By manually cocking the trigger, the trigger drives the hinge to move, the hinge drives the rack to move, the rack drives the second bevel gear to move, and the second bevel gear drives the first bevel gear to rotate the first sleeve.

49. The system of claim 48, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The myocardial rotary cutting system further comprises: a tissue locking member arranged in the internal cavity of the rotary cutting assembly and used to reciprocate along the axial direction of the rotary cutting assembly under the action of an external force, so as to fix the myocardial tissue to be resected adsorbed at the resection window; wherein the mechanical driving assembly is connected to the tissue locking member and used to drive the tissue locking member to reciprocate along the axial direction of the rotary cutting assembly.

50. The system of claim 49, wherein the distal end of the guide tube is configured to be inserted into the myocardium of the heart. The tissue locking assembly further comprises a third sleeve, and the tissue locking member is arranged in the third sleeve; the third sleeve has a first limiting groove, the tissue locking member is limitingly connected to the trigger through a limiting pin, and when the trigger rotates, the limiting pin slides in the first limiting groove along the axial direction of the rotary cutting assembly, so as to drive the tissue locking member to move along the axial direction of the rotary cutting assembly.

51. The system of claim 50, wherein, The third sleeve has a second limiting groove, the tissue locking member is slidingly connected to the second limiting groove through a pin shaft, and one end of the pin shaft protrudes from the third sleeve. The mechanical driving assembly further comprises a buckle, a first elastic member and a second elastic member, the first elastic member is arranged in the third sleeve, one end of the first elastic member is connected with the third sleeve, and the other end is connected with one end of the tissue locking member away from the resection window, the second elastic member is arranged above the rack and connected with the buckle, and the buckle is slidingly connected with the third sleeve; Under the action of an external force, the buckle can slide on the third sleeve away from the resection window, one end of the pin shaft protruding from the third sleeve abuts against the buckle, the pin shaft and the buckle drive the tissue locking member to move away from the resection window, and the first elastic member and the second elastic member are compressed; When the external force disappears, the buckle slides on the third sleeve towards the resection window, the trigger is pulled, and the first elastic member and the second elastic member move towards the resection window under the elastic force and lock the myocardial tissue to be resected.

52. The system of claim 50, wherein the distal end of the guide tube is configured to be inserted into the left atrium of the heart. The mechanical driving assembly further comprises a torsional spring, the torsional spring connects the trigger and the shell, and is used to drive the trigger to reset.

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