A kind of suture knot pusherTechnical field
The invention belongs to the knot appliance technologies that knots of performing the operation, and in particular to a kind of interventional cardiac procedures suture knotDevice.
Background technique
Interventional cardiac procedures are a kind of new diagnostic and treatment cardiovascular disease technology, refer to the thigh root or hand in patientThe instrument of various treatments is sent by the positions such as heart or blood vessel by core tube technology on wrist, passes through specific cardiac catheterThe diagnosis and treatment method that operating technology is made a definite diagnosis heart disease and treated, it is heart disease diagnosis and treatment method relatively advanced at present, intoExhibition is also very fast, it is a kind of invasive diagnosis and treatment method between medical treatment and surgical operation therapy；Including coronal dynamicArteries and veins radiography, PTCA+ stenting, percutaneous balloon mitral commissurotomy, radio-frequency ablation procedure, pacemaker implantation, congenital heart disease are situated betweenEnter treatment, the intracavitary thrombolysis art of coronary artery.During interventional cardiac procedures, valvular notch is sutured,In sewing process, suture needs to knot, in order to guarantee heart valve notch stabilization and securely, needed during knotting bySuture tightens.To generally knot in vitro accomplish fluently then with suture knot pusher push this knot pricked into.
Solid, reliable knot is one of key factor of successful surgery.Clinically knotting method used has gimmick to beatIt ties and two kinds of instrumental tie.The former is difficult to complete in the case where surgical finger cannot be got at, therefore is not suitable for heartIntervention operation knots；Instrumental tie is suitable for deep operation, common to have knot method and sleeve joint method two ways, is required to looking at straightIn the case of complete.Knot method is to pinch an arm of suture on the other hand by doctor, the other hand knot pusher is by helping after gimmick knottingAnother arm of the knot suture of hand grip pushes down, and is then log out knot pusher, then push away second knot with identical gimmick.This sideAlthough method can complete the generation of deep knot, conventional suture knot pusher structure is relatively simple, and often careless manipulation willIt causes that slip goes offline or knot is not in place, leads to the failure of entire knot, so as to cause serious consequence.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of suture knotDevice, simple structure and reasonable design connect hard silicone tube and soft silica gel plug on knot pusher bar, in intervention procedure, can keep awayExempt from heart injury, will not stimulate or impair cardiac, setting pushes away line inner core inside knot pusher bar, pushes away line inner core and plays the hard silicon of supportThe effect of sebific duct, while the side wall for pushing away line inner core and wire casing matches and can play the role of clamping suture, further avoids sutureSlip phenomenon in progradation.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of suture knot pusher, it is characterised in that:Including knot pusher handle and the knot pusher bar being fixedly connected with the knot pusher handle, the end of the knot pusher bar, which is provided with, to be pushed awayTieing, the knot head include the hard silicone tube that one end is connect with knot pusher bar and connect with the other end of the hard silicone tubeSoft silica gel plug, the hard silicone tube and knot pusher bar are in hollow structure, offer and are used on the side wall of the hard silicone tubeThe wire casing of suture is placed, the wire casing is dovetail groove, and the two sidewalls of the dovetail groove tilt to center, set in the knot pusher barIt is equipped with and pushes away line inner core, the internal diameter of the diameter for pushing away line inner core and knot pusher bar matches, and the length for pushing away line inner core is greater thanThe length of knot pusher bar is provided on the knot pusher handle and moves for pushing away line inner core along the knot pusher bar axial directionDynamic pushes away torsion, and described one end for pushing away line inner core towards hard silicone tube offers cross recess.
Above-mentioned a kind of suture knot pusher, it is characterised in that: the length of the hard silicone tube is 3~8cm.
Above-mentioned a kind of suture knot pusher, it is characterised in that: the wire casing is fillet wire casing.
Above-mentioned a kind of suture knot pusher, it is characterised in that: the soft silica gel plug is cup head plug.
Above-mentioned a kind of suture knot pusher, it is characterised in that: the length of the knot pusher bar is 50~70cm.
Compared with the prior art, the present invention has the following advantages:
1, simple structure and reasonable design of the invention is realized and easy to use and operate.
2, the present invention connects hard silicone tube and soft silica gel plug on knot pusher bar, hard silicone tube and soft silica gel plug byNontoxic silica gel material is made, and silica gel material is a kind of high activity adsorbent material, belongs to amorphous substance, and silica gel is mainIngredient is silica, and chemical property is stablized, do not burn, and in intervention procedure, can avoid heart injury, will not stimulate or damageHeart, using effect are good.
3, the present invention offers the wire casing for placing suture on the side wall of hard silicone tube, and wire casing is dovetail groove, describedThe two sidewalls of dovetail groove are tilted to center, so that the opening of wire casing is small, reduce slip phenomenon of the suture in progradation.
4, present invention setting inside knot pusher bar pushes away line inner core, pushes away the diameter of line inner core and the internal diameter phase of knot pusher barMatch, the length for pushing away line inner core is greater than the length of knot pusher bar, torsion is pushed away by pushing to be arranged on knot pusher handle, so that pushing away lineInner core is moved along knot pusher bar axial direction, is pushed away line inner core and is played the role of the hard silicone tube of support, so that hard silicone tube can be along pre-Determine direction intervention.
5, in the present invention, the side wall for pushing away line inner core and wire casing, which matches, can play the role of clamping suture, further avoidSlip phenomenon of the suture in progradation.When suture, which has, slips dangerous, clamping can be played by pushing away the cross recess on line inner coreThe effect of suture, meanwhile, the side wall of the wire casing of trapezoidal slot can also play the role of limiting suture slippage.
In conclusion the configuration of the present invention is simple, design are rationally, hard silicone tube is connected on knot pusher bar and soft silica gel is stifledHead can avoid heart injury, will not stimulate or impair cardiac in intervention procedure, and setting pushes away line inner core inside knot pusher bar,The side wall for pushing away line inner core and playing the role of the hard silicone tube of support, while pushing away line inner core and wire casing, which matches, can play clamping sutureEffect, further avoids slip phenomenon of the suture in progradation.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is enlarged drawing at the A of Fig. 1.
Fig. 3 is the structural schematic diagram of knot head of the present invention.
Description of symbols:
1-knot pusher handle；2-push away torsion；3-knot pusher bars；
4-hard silicone tubes；5-soft silica gel plugs；6-push away line inner core；
7-wire casings.
Specific embodiment
As shown in Figure 1, the present invention includes knot pusher handle 1 and the knot pusher bar that is fixedly connected with the knot pusher handle 13, the end of the knot pusher bar 3 is provided with knot head, and the knot head includes the hard silicone tube that one end is connect with knot pusher bar 34 and the soft silica gel plug 5 that connect with the other end of the hard silicone tube 4, the hard silicone tube 4 and knot pusher bar 3 are in hollowStructure, the wire casing 7 for placing suture is offered on the side wall of the hard silicone tube 4, and the wire casing 7 is dovetail groove, the ladderThe two sidewalls of shape slot are tilted to center, are provided in the knot pusher bar 3 and are pushed away line inner core 6, the diameter for pushing away line inner core 6 with push awayThe internal diameter of knot device bar 3 matches, and the length for pushing away line inner core 6 is greater than the length of knot pusher bar 3, on the knot pusher handle 1It is provided with and pushes away torsion 2 along what 3 axial direction of knot pusher bar moved for pushing away line inner core 6, the line inner core 6 that pushes away is towards hardOne end of silicone tube 4 offers cross recess.
In actual use, since the suture knot pusher is used in interventional cardiac procedures, the thigh root from patient is neededEither enter the positions such as heart or blood vessel in wrist, longer into length, traditional knot pusher bar is made of all-metal, is heldEasily stimulation or impair cardiac, therefore the application connects hard silicone tube 4 and soft silica gel plug 5, hard silicone tube 4 on knot pusher bar 4It is made with soft silica gel plug 5 by nontoxic silica gel material, silica gel material is a kind of high activity adsorbent material, is belonged to non-Amorphous material, silica gel main component are silica, and chemical property is stablized, do not burn, and in intervention procedure, can avoid heart damageWound, will not stimulate or impair cardiac, using effect are good.
In actual use, the wire casing 7 for placing suture is offered on the side wall of hard silicone tube 4, wire casing 7 is dovetail groove,The two sidewalls of the dovetail groove are tilted to center, so that the opening of wire casing 7 is small, it is existing to reduce slippage of the suture in progradationAs.
In actual use, setting pushes away line inner core 6 inside knot pusher bar 3, pushes away the diameter and knot pusher bar 3 of line inner core 6Internal diameter matches, and the length for pushing away line inner core 6 is greater than the length of knot pusher bar 3, and pushing away on knot pusher handle 1 is arranged in by pushing2 are turned round, is moved so that pushing away line inner core 6 along 3 axial direction of knot pusher bar, line inner core 6 is pushed away and plays the role of the hard silicone tube 4 of support, makeObtaining hard silicone tube 4 can intervene along predetermined direction.The side wall for pushing away line inner core 6 and wire casing 7 simultaneously, which matches, can play clamping sutureEffect, further avoids slip phenomenon of the suture in progradation.When suture, which has, slips dangerous, push away on line inner core 6Cross recess can play the role of clamping suture, meanwhile, the side wall of the wire casing 7 of trapezoidal slot can also play what limitation suture slippedEffect.
In the present embodiment, the length of the hard silicone tube 4 is 3~8cm.Therefore hard silicone tube 4 has 3~8cm radiusScope of activities operates convenient for performer.
In the present embodiment, the wire casing 7 is fillet wire casing.Fillet wire casing can avoid rubbing suture.
In the present embodiment, the soft silica gel plug 5 is cup head plug.
In the present embodiment, the length of the knot pusher bar 3 is 50~70cm.The length of 50~70cm can meet Cardiac interventionalThe length of operation needs.
The above is only the embodiment of the present invention, is not intended to limit the invention in any way, all technologies according to the present inventionEssence any simple modification to the above embodiments, change and equivalent structural changes, still fall within the technology of the present invention sideIn the protection scope of case.