Background
With the continuous improvement of the economic level and the continuous progress of the technology, the minimally invasive surgery goes deep into various fields of the surgery, and the monitoring system is not only limited to an endoscope, but also adopts an interventional mode, such as spinal surgery and orthopedics. Still other approaches, such as microsurgery, are widely used in hand surgery and the like. The minimally invasive surgery has the advantages of small trauma, light pain and quick recovery, the coronary artery is an artery for supplying heart blood, the artery is started in the aortic sinus at the root of the aorta, the artery is divided into left and right branches and runs on the surface of the heart, and the drug infusion operation is carried out through the infusion catheter in the minimally invasive heart surgery.
At present, the traditional heart operation needs an open chest operation, and has large wound and long recovery time. With the development of minimally invasive surgery techniques, more and more cardiac surgery can be performed in a minimally invasive manner, i.e., by performing the surgery through a small incision, reducing the surgical trauma and recovery time. Among them, coronary intervention is a common minimally invasive heart operation. In coronary intervention operation, the catheter enters the heart through puncture, the heart is treated through the catheter, the minimally invasive heart operation has the advantages of small wound, light pain and quick recovery, the coronary artery is an artery for supplying heart blood, and is arranged in the aortic sinus at the root of the aorta, and the catheter is divided into left branch and right branch and runs on the surface of the heart, and the drug infusion operation is carried out through the infusion catheter in the minimally invasive heart operation.
The Chinese patent with publication number of CN217219839U discloses a length-scalable coronary artery direct perfusion head in minimally invasive heart surgery, which comprises a direct perfusion catheter and a perfusion head arranged at one end of the direct perfusion catheter, wherein a plurality of perfusion ports are arranged on the perfusion head, a perfusion mechanism is arranged at the other end of the direct perfusion catheter, a first threaded joint is arranged at one end of the perfusion mechanism, an auxiliary connecting mechanism is arranged at one side of the perfusion mechanism, a perfusion treatment mechanism is arranged inside the perfusion mechanism, an air bag is arranged at one end, close to the perfusion head, of the direct perfusion catheter, an air charging tube is arranged on the direct perfusion catheter at one side of the perfusion mechanism, one end of the air charging tube is connected with an air charging ball, and the other end of the air charging tube is connected with the air bag through an air charging channel on the direct perfusion catheter. The utility model is provided with a series of structures for minimally invasive heart surgery coronary artery perfusion operation, realizes minimally invasive heart surgery coronary artery multi-interface perfusion on the direct perfusion catheter, has flexible and convenient use, perfusion filtration and heating treatment, improves the safety of perfusion, and has stronger functionality and practicability.
Although this may be done with minimally invasive cardiac surgery coronary artery multi-interface perfusion: this kind of structure has many problems in actual minimally invasive heart surgery, in the actual operation process, because patient's self problem, the endovascular possible rubbish that produces causes vascular blockage, can't carry out timely mediation this moment, can't take out the pipe again and clear up, and very inconvenient, still there is certain danger, above-mentioned patent structure is too single, and is not nimble enough, can't control pipe and straight filling head, can't satisfy patient's different position minimally invasive operation, can't guarantee the quick location of operation and the stability of whole operation.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a coronary artery direct perfusion head in minimally invasive heart surgery to solve the problems in the background art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a coronary artery direct perfusion head in minimally invasive heart surgery, includes the handle, handle one end is connected with the adjustment section of thick bamboo, adjustment section of thick bamboo both sides are provided with symmetrical regulation hole, sliding fit has a liquid filling section of thick bamboo in the adjustment section of thick bamboo, liquid filling section of thick bamboo top is provided with the inlet, carries out the perfusion of liquid medicine through the inlet, liquid filling section of thick bamboo one end is provided with the adapter, sealed installs the pipe in the adapter, be provided with the branch liquid piece in the pipe, be provided with a plurality of runners in the pipe, every runner one end all is provided with the branch liquid and irritates the head, the branch liquid is the circumference and distributes, a plurality of branch liquid are irritated the head and are linked together branch liquid piece, the pipe center is provided with the operation wire, operation wire port is provided with the clearance chuck, dredges internal blood vessel rubbish through the clearance chuck, the handle is inside to be provided with stretching mechanism, shrink stretching to the operation wire through stretching mechanism.
As an alternative scheme of the utility model, the whole adjusting hole is Z-shaped, and the corner is 90 degrees.
As an alternative scheme of the utility model, positioning blocks are arranged on two sides of the liquid filling cylinder, and the liquid filling cylinder rotates along the adjusting hole through the matching of the positioning blocks and the adjusting hole.
As an alternative scheme of the utility model, the catheter is provided with a locating ring in a sliding fit manner, and the surgical site can be quickly located by matching with a surgical patch through the locating ring.
As an alternative scheme of the utility model, the operation wire is made of nickel-titanium memory alloy material.
As an alternative scheme of the utility model, the stretching mechanism comprises a pressing hand, the pressing hand is arranged in the handle through a pin shaft, one end of the pressing hand is connected with a connecting rod through a pin shaft, the other end of the connecting rod is movably connected with an extrusion cylinder through a pin shaft, the extrusion cylinder is assembled and fixed with a telescopic cylinder, one end of the telescopic cylinder is provided with a winding component, and the winding component is connected with a surgical wire.
As an alternative scheme of the utility model, the compression spring is arranged on the outer side of the extrusion cylinder and is arranged in the handle to drive the extrusion cylinder to reciprocate, the other end of the extrusion cylinder is provided with the positioning cylinder, one end of the positioning cylinder is fixed on one side of the positioning wheel, and the positioning wheel is arranged in the mounting groove of the handle and used for limiting the extrusion cylinder.
As an alternative scheme of the utility model, the winding assembly comprises a driving box, the driving box is fixed on one side of the telescopic cylinder, a motor is arranged in the driving box, a winding disc is arranged at the driving end of the motor, the winding disc is used for winding and recovering surgical wires, and the motor drives the surgical wires to shorten or lengthen the distance.
The utility model provides a coronary artery direct perfusion head in minimally invasive heart surgery, which has the following beneficial effects:
through the quick location operation minimally invasive position of holding ring, utilize the operation to paste fixedly, slowly extend to internal through the pipe, if found vascular rubbish, appear blocking up etc. the situation, through the press handle that sets up, drive the recipient and remove, repeatedly shrink through compression spring, drive the telescoping tube and move, thereby stretch and shrink the operation wire, clear up repeatedly through the clearance chuck of operation wire one end, quick mediation, follow-up operation is gone on being convenient for, can drive operation wire through the motor that sets up and retrieve or lengthen, improve holistic application range, guarantee to dredge the mistake back, carry out the liquid medicine infusion through the inlet, the liquid medicine is evenly carried in the runner of pipe inside through the division liquid piece, flow into in the minute liquid filling head through the runner, realize multidirectional infusion, wholly adopt the combination installation, convenient for dismantle installation and carry.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 9, the present utility model provides a technical solution: the utility model provides a coronary artery direct perfusion head in minimally invasive heart surgery, including grip 1, grip 1 one end is connected with adjusting cylinder 4, adjusting cylinder 4 both sides are provided with symmetrical regulation hole 401, adjusting hole 401 is whole to be Z, the turning is 90 degrees, sliding fit has a liquid filling section of thick bamboo 5 in adjusting cylinder 4, liquid filling section of thick bamboo 5 can reciprocate, carry out rotational positioning again, thereby carry out the position adjustment, liquid filling section of thick bamboo 5 top is provided with inlet 501, carry out the perfusion of liquid medicine through inlet 501, liquid filling section of thick bamboo 5 both sides are provided with locating piece 502, through locating piece 502 and adjusting hole 401 cooperation, liquid filling section of thick bamboo 5 can carry out rotary movement along adjusting hole 401, liquid filling section of thick bamboo 5 one end is provided with adapter 6, sealed the installation pipe 7 in adapter 6, pipe 7 is coronary artery intervention pipe, special for cardiovascular disease's operation, according to different classification standard, coronary artery intervention pipe can be divided into following several categories:
1. sorting by catheter material
Coronary intervention catheters can be classified into two main categories, namely metallic catheters and nonmetallic catheters, according to the materials of the catheters. The metal conduit is generally made of stainless steel or tungsten alloy, has good strength and durability, and can be used for multiple times. The nonmetallic catheter is generally made of polymer materials, has better biocompatibility and flexibility, and is suitable for disposable use.
2. Sorting by catheter function
Coronary intervention catheters can be classified into guide catheters and therapeutic catheters according to their functions. Guide catheter refers to a catheter for guiding and positioning, mainly for coronary angiography and vascular imaging. The treatment catheter is a catheter for interventional therapy, and can be used for treatment operations such as vasodilation, stent implantation, thrombus aspiration and the like.
3. Sorting by catheter characteristics
Coronary intervention catheters can be classified into general catheters and special catheters according to their characteristics. The common catheter refers to a catheter which is used conventionally and is suitable for most coronary intervention operations. By special catheter is meant a catheter having a special function or shape, such as a rotary cutting catheter, occlusion catheter, etc., which may be used for therapeutic procedures in special situations.
The classification of coronary intervention catheters is not only helpful for doctors to select proper catheters for operation, but also can carry out personalized treatment according to the specific conditions of patients. With the continuous progress of medical technology, the variety and function of coronary intervention catheters are also continuously enriched and perfected, and more choices and possibilities are provided for treating cardiovascular diseases.
The locating ring 8 is slidably matched with the catheter 7, the surgical position can be quickly located through the locating ring 8 in cooperation with a surgical patch, the safety and stability of surgery are guaranteed, the liquid dividing block 702 is arranged in the catheter 7, a plurality of runners are arranged in the catheter 7, one end of each runner is provided with the liquid dividing and filling head 701, the liquid dividing and filling heads 701 are circumferentially distributed, the liquid dividing and filling heads 701 are communicated with the liquid dividing block 702, therefore, medicine infusion of a plurality of channels can be carried out, the liquid dividing block 702 divides medicine into each flow, the medicine is evenly conveyed, the surgical treatment effect is greatly improved, the surgical wire 10 is arranged in the center of the catheter 7, and the surgical wire 10 is made of nickel-titanium memory alloy materials, and the advantages are as follows:
1. good biocompatibility
The main components of the nickel-titanium memory alloy stent are nickel and titanium, and the two metals have good biocompatibility, so that the problems of allergy, rejection and the like can be avoided by using the surgical lead made of the nickel-titanium memory alloy.
2. Restoring the original shape
The nickel-titanium memory alloy bracket has a memory function, namely, can memorize the shape at a certain temperature, and can recover the original shape after being heated after being deformed by external force.
3. High elasticity
The nitinol stent is very elastic, meaning that it can withstand greater pressures and deformations.
The surgical wire 10 port is provided with clearance chuck 15, can dredge internal vascular rubbish through clearance chuck 15, avoid the jam, accelerate the operation progress, the inside stretching mechanism that is provided with of handle 1, shrink tensile to surgical wire 10 through stretching mechanism, thereby carry out local mediation, stretching mechanism includes press handle 2, press handle 2 installs in handle 1 through the round pin axle, press handle 2 one end has connecting rod 3 through the round pin hub connection, the connecting rod 3 other end is fixed with the telescopic cylinder 11 through the assembly of round pin hub swing joint extrusion section of thick bamboo 111, telescopic cylinder 11 one end is provided with the rolling subassembly, rolling subassembly connects surgical wire 10, the compression spring 12 is equipped with in the extrusion section of thick bamboo 111 outside, compression spring 12 installs in handle 1, thereby can guarantee the reciprocating motion of extrusion section of thick bamboo 111, be convenient for dredge repeatedly, can promote connecting rod 3 through extrusion handle 2, make extrusion section of thick bamboo 111 carry out horizontal migration, the cooperation compression spring 12 is rebounded, drive surgical wire 10 makes a round trip to shrink, the rubbish of the clearance of the inside of blood vessel of being convenient for, extrusion section of thick bamboo 111 other end is equipped with positioning cylinder 13, positioning cylinder 13 one end is fixed in positioning wheel 14 one side, positioning wheel 14 installs in the mounting groove of handle 1, the stable effect is played.
The winding component comprises a driving box 9, the driving box 9 is fixed on one side of a telescopic cylinder 11, a motor 901 is arranged in the driving box 9, and the motor 901 adopts a direct current brushless motor of RS-550VC type. The device has the characteristics of wide application range, high rotating speed, high torque and the like. The load characteristic is stable, the device can work under the voltage of 2V-24V, and the device is suitable for products such as electric tools, electric vehicles, aeromodelling and the like.
The standard model is as follows:
model: RS-550VC
Voltage range: 2V-24V
Idle rotation speed: 23000 RPM (RPM)
Load torque: 884 g.cm
Output power: 144 W (W)
The power consumption is indeed much smaller with brushless motors than with traditional brush motors. Because the controller of the brushless motor adopts advanced electronic technology, high-efficiency electric energy conversion can be realized, and the waste of energy sources is greatly reduced. In addition, the motor driving controller of the brushless motor can automatically adjust the working state of the motor, and high-efficiency work of the motor is realized according to the load, so that the power consumption is further reduced.
Other advantages of brushless motor
First, it is high-efficient
Brushless motors have higher efficiency, which also means less energy loss. This is because a brushless motor has no stator current passing through it, and a gerotor motor is relatively more advantageous. Brushless motors exhibit excellent performance in terms of torque, rotational speed, and efficiency.
(II) Low noise
Since the brushless motor controls the position of the rotor through the electronic device, there is no friction and mechanical collision sound between the brush and the brush in the conventional brush motor, and thus the noise of the brushless motor is small.
(III) high reliability
Brushless motors do not have the vulnerable components (e.g., brushes) of conventional brushed motors; meanwhile, the brushless motor has stronger capability of bearing high pressure, high rotating speed and high load, and is easy to waterproof, dustproof and shockproof.
(IV) long life
Because the main components of the brushless motor are a rotor and a stator, and the brushless motor driving controller can automatically adjust the working state of the motor, the service life of the motor can be longer, and the operation is more stable and reliable.
The motor 901 driving end is provided with a take-up reel 902, surgical wires 10 are wound in the take-up reel 902, the surgical wires 10 can be driven to shorten or lengthen the distance through the motor 901, and the surgical wire winding device is suitable for operations at different positions.
Specific use and action of the embodiment: before an operation starts, the minimally invasive position of the operation is determined firstly, the minimally invasive position is positioned through the positioning ring 8, the operation is fixed, after the completion, the catheter 7 is slowly extended to the inside of a body, the specific position is observed through the perspective instrument, if the conditions such as blockage and the like are found, the hand 2 is immediately pressed down, the extrusion cylinder 111 is repeatedly contracted through the compression spring 12 to drive the telescopic cylinder 11 to move, the operation wire 10 is stretched and contracted, thereby the cleaning chuck 15 at one end of the operation wire 10 is repeatedly cleaned, the operation is quickly dredged, the subsequent operation is convenient to carry out, the motor 901 is started to drive the operation wire 10 to recover or prolong, the whole application range is improved, the liquid medicine is immediately infused into the liquid inlet 501 after dredging is ensured to be free, the liquid medicine is evenly conveyed into the runner inside the catheter 7 through the liquid dividing block 702, the liquid medicine flows into the liquid dividing and fills the head 701 through the runner, the multidirectional infusion is realized, the operation success rate is improved, the integral combined installation is adopted, and the disassembly and the operation is convenient to be disassembled and carried.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.