CN104822411A - Medical instrument - Google Patents
Medical instrument Download PDFInfo
- Publication number
- CN104822411A CN104822411A CN201480003266.XA CN201480003266A CN104822411A CN 104822411 A CN104822411 A CN 104822411A CN 201480003266 A CN201480003266 A CN 201480003266A CN 104822411 A CN104822411 A CN 104822411A
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- China
- Prior art keywords
- retaining element
- swivel plate
- handle
- catheter
- main body
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0136—Handles therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
- A61B2017/00318—Steering mechanisms
- A61B2017/00323—Cables or rods
- A61B2017/00327—Cables or rods with actuating members moving in opposite directions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00839—Bioelectrical parameters, e.g. ECG, EEG
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
Abstract
Provided is a medical instrument which is capable of improving user convenience. The medical instrument (electrode catheter (1)) is equipped with a flexible tube-like member (catheter tube (2)), a handle (3) provided on the proximal end side of the tube-like member, and operating wires (41a, 41b) which have the proximal end side thereof extending toward the handle (3) side from within the tube-like member and which are for bending the vicinity of the distal end of the tube-like member. The handle (3) is provided with a main handle body (31), a rotating plate (32) which is attached to the main handle body (31) in a rotatable manner, adjusting fasteners (323a, 323b) which are provided upon the rotating plate (32) and secure the proximal end of the operating wires (41a, 41b) while enabling arbitrary adjustment of the retracted length of the vicinity of the proximal end of the wires when securing the wires, and opening sections (310a, 310b) which are formed in the main handle body (31) and are for communicating the adjusting fasteners (323a, 323b) with the exterior.
Description
Technical field
The present invention relates to the medical apparatus and instruments such as a kind of electrode catheter and catheter sheath device, such as, can be used for checking (diagnosis), treatment arrhythmia etc.
Background technology
Electrode catheter, by (such as endocardial) in blood vessel insertosome, for inspection, treats arrhythmia.This electrode catheter in general, shape near the front end (far-end) of the catheter tube in insertosome is according to the operation of operating portion, and on a direction or both direction, change (deflection, bending, flexure), this operating portion is arranged on the cardinal extremity being configured at this external catheter tube, and (near-end, rear end, on hand).In addition, except the type that the shape near this front end can change arbitrarily according to operation, also there is the type that the shape near front end is fixing.
In addition, possess the catheter sheath device of sheath (protecting pipe) for both to know, this sheath play by the conduit insertosome of this electrode catheter etc. time, the effect that blood vessel dilating, on one side auxiliary electrode insert.
As an example of the handle of the medical apparatus and instruments such as this electrode catheter and catheter sheath device, such as, be disclosed in patent documentation 1, can have enumerated to use being installed to be the swivel plate that can rotate freely relative to the handle main body handle as operating portion.On this swivel plate, for making the base end side of operation lead-in wire bending near the front end of the tubular part such as catheter tube and protecting pipe, be extended in these tubular parts.In addition, swivel plate is provided with the lead-in wire retaining element of the cardinal extremity for fixing this operation lead-in wire.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2013-17693 publication.
Summary of the invention
But, in this lead-in wire retaining element, if the length of extending when can regulate fixing arbitrarily near cardinal extremity, then can obtain following advantage.That is, can finely tune the tension force of operation lead-in wire, the degree of crook (curved shape etc.) near the front end of consequently tubular part can be finely tuned.
At this, utilize such lead-in wire retaining element (adjustment retaining element) fine setting to the degree of crook near front end, in the assembling process of handle, (before completing assembling) carries out.But, after the assembling of this handle completes, also likely need again to carry out such fine setting operation.Now, because the assembling of handle completes, before carrying out fine setting operation, need once decompose handle.For this reason, working performance will reduce, and undermine convenience.
The present invention makes in view of the above problems, and its object is to provides a kind of medical apparatus and instruments that can improve convenience.
Medical apparatus and instruments of the present invention possesses: having elastic tubular part, being located at the handle of the proximal lateral of this tubular part and proximal lateral from being extended in tubular part to handle side and operation lead-in wire for making the proximate distal ends of tubular part bending.Described handle has: handle main body, be installed to be can rotate freely relative to this handle main body swivel plate, be located on this swivel plate can fixing operation lead-in wire near-end and can this be regulated arbitrarily fixing time near proximal ends length of extending adjustment retaining element and be formed in handle main body for making the peristome of adjustment retaining element and ft connection.
In medical apparatus and instruments of the present invention, be located at adjustment retaining element on swivel plate by being formed at peristome in handle main body and ft connection.Therefore, after the assembling of handle completes, the length of extending of the near proximal ends of any adjustment operation lead-in wire of this adjustment retaining element can be utilized, can finely tune the tension force of operation lead-in wire.That is, even if not once decompose handle, also can finely tune the degree of crook of the proximate distal ends of tubular part.
In medical apparatus and instruments of the present invention, the forming position of peristome is preferably set to: rotated at described swivel plate, under state that the proximate distal ends of tubular part is bending, adjustment retaining element and ft connection.Formation like this, under the state that can bend at the proximate distal ends of tubular part, finely tunes this degree of crook.That is, because (disposable) the fine setting operation of degree of crook can be carried out when rotation process simultaneously, more can improve working performance, more improve convenience.
In addition, in the case, the knob for making this swivel plate rotate more preferably is set on the side of described swivel plate, and under the state abutted with handle main body at this knob, the position of adjustment retaining element is overlapped mutually with the forming position of peristome.Formation like this, the position (carrying out the anglec of rotation during fine setting operation of degree of crook) that they overlap mutually is just easily known, and operator need not confirm on hand also can mobile operating position.Therefore, it is possible to improve working performance further, improve convenience further.
In medical apparatus and instruments of the present invention, if use lock pin and screw to form described adjustment retaining element, length of extending described in also can regulating according to the swing of this lock pin, and after this length of extending is conditioned, be screwed the near-end of operation lead-in wire.Formation like this, the adjustment operation of length of extending, that is, the fine setting operation of degree of crook is easily carried out.Therefore, more can improve working performance, more improve convenience.
According to medical apparatus and instruments of the present invention, because by for making the peristome of adjustment retaining element and ft connection be formed at handle main body, so after the assembling of handle completes, also can finely tune the degree of crook of the proximate distal ends of tubular part.Therefore, can working performance be improved, improve convenience.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the schematic configuration example of the electrode catheter as medical apparatus and instruments represented involved by one embodiment of the present invention.
Fig. 2 be represent the electrode catheter shown in Fig. 1 swivel plate near the schematic diagram of detailed configuration example.
The schematic diagram of configuration example when Fig. 3 A is the rotation process representing the swivel plate shown in Fig. 2.
The schematic diagram of other configuration examples when Fig. 3 B is the rotation process representing the swivel plate shown in Fig. 2.
Fig. 4 is the schematic diagram of the schematic configuration of the electrode catheter represented involved by comparative example.
Fig. 5 is the schematic diagram be described the effect of the electrode catheter shown in Fig. 1.
Fig. 6 is other schematic diagrams be described the effect of the electrode catheter shown in Fig. 1.
Fig. 7 is the schematic diagram of the schematic configuration example of the catheter sheath device as medical apparatus and instruments represented involved by variation of the present invention.
Detailed description of the invention
Embodiments of the present invention are described in detail referring to accompanying drawing.Further, explanation is undertaken by following order.
1, embodiment (medical apparatus and instruments is the example of electrode catheter)
2, variation (medical apparatus and instruments is the example of catheter sheath device)
3, other variation
< embodiment >
[formation]
Fig. 1 is the schematic diagram of the schematic configuration example of the electrode catheter 1 as medical apparatus and instruments represented involved by one embodiment of the present invention.Electrode catheter 1, by (such as endocardial) in blood vessel insertosome, for inspection, treats arrhythmia.This electrode catheter 1 possesses: as catheter main body (long portion) catheter tube 2 (conduit tubular axis) and be arranged on the handle 3 of base end side of this catheter tube 2.
(catheter tube 2)
Catheter tube 2 is formed by having elastic tubular structure (tubular part of hollow), in the shape that the axis direction (Z-direction) along himself extends.Specifically, the axial length of catheter tube 2 grows several times to tens times than axis (Z-direction) length of handle 3.Have again, although this catheter tube 2 can be made up of towards axis direction the pipe that characteristic is identical, but preferably have: the resilient distal portions of relative rich and compare the proximal part that this distal portions is rich in rigidity relatively, and this proximal part is integrally formed in the axial direction relative to this distal portions.
In addition, the inside that catheter tube 2 has along the axis direction extension of himself is formed with the so-called single hole structure of 1 pore (lumen, through hole) or is formed with the so-called vesicular structure of multiple (such as, 4) pore.Further, also can both arrange by the region of single hole formation of structure in the inside of catheter tube 2, the region formed by vesicular structure was set again.In the pore of this catheter tube 2, various fine rule (operation lead-in wire 41a, 41b described below and not shown wire etc.) inserts with the state of mutually insulated respectively.
Catheter tube 2 is made up of synthetic resin such as such as polyolefin, polyamide, polyether-polyamide (polyetherpolyamide), polyurethane.In addition, the axial length of catheter tube 2 is about 500 ~ 1200mm (such as 1170mm), and the external diameter (external diameter of X-Y section) of catheter tube 2 is about 0.6 ~ 3mm (such as 2.0mm).
Near the front end of catheter tube 2, be configured with multiple electrode (being 3 ring electrodes 21 and 1 front termination electrode 22) herein with predetermined distance.Specifically, ring electrode 21 be fixed be configured at catheter tube 2 outer peripheral face on, on the other hand, front termination electrode 22 is fixed and is configured at catheter tube 2 foremost.These electrodes, by being inserted in the multiple conducting wires (not shown) in the pore of above-mentioned catheter tube 2, are connected with the internal electrical of handle 3.Further, this wire is such as made up of metal materials such as copper and is coated with insulative resin, its diameter is about 50 ~ 200 μm (such as 100 μm) left and right.
These ring electrodes 21 and front termination electrode 22 are made up of the metal material that such as aluminum (Al), copper (Cu), rustless steel (SUS), electric conductivity such as gold (Au), platinum (Pt) etc. are good respectively.Further, good to the developability of X-ray in order to make when using electrode catheter 1, above-mentioned electrode is preferably made up of platinum or its alloy.In addition, the external diameter of these ring electrodes 21 and front termination electrode 22 is not particularly limited, but preferably about equal with the external diameter of above-mentioned catheter tube 2.
(handle 3)
Handle 3 is the parts being caught (holding) when using electrode catheter 1 by operator (doctor).As shown in Figure 1, handle 3 has: be arranged on the handle main body 31 (handle portion) of the base end side of catheter tube 2 and be installed to be the swivel plate (operating portion) 32 that can rotate freely relative to this handle main body 31.
Handle main body 31 is in the segmenting structure be made up of 2 cutting plates (not shown) extended along Z-direction, and swivel plate 32 is folded by these 2 cutting plates.The degree that the axial length preferred operator of this handle main body 31 entirety can hold with one, but be not particularly limited.This handle main body 31 is such as made up of synthetic resin such as Merlon, acrylonitrile-butadiene-styrene copolymers (ABS).
Herein in the present embodiment, as shown in Figure 1, this handle main body 31 forms pair of openings portion 310a, 310b, this peristome is for making hereinafter described adjustment retaining element 323a, 323b on swivel plate 32 and ft connection.These peristomes 310a, 310b distinguish the opening of rounded shape in this example, are formed mutually in this example relative to the axis of handle main body 31 with the position of line symmetry.Further, describe in detail with in the position relationship of retaining element 323a, 323b later (Fig. 3 A, Fig. 3 B etc.) for these peristomes 310a, 310b and adjustment.
Swivel plate 32 be use when making deflection near the front end of catheter tube 2, for carrying out being partial to the parts of mobile operation (swing operation), in slightly disc-shape.Specifically, in this example as shown in arrow d1a, the d1b in Fig. 1, (the hereinafter described rotation process being center of rotation with rotating shaft 320) swivel plate 32 can be rotated relative to handle main body 31 in the both direction of X-Y plane.Further, this swivel plate 32 is made up of such as identical with above-mentioned handle main body 31 material (synthetic resin etc.).
Fig. 2 is the schematic plan view of the detailed configuration example representing swivel plate 32.As shown in Figure 2, on this swivel plate 32, be provided with rotating shaft 320, a pair knob 321a, 321b, guide rail 322 and a pair adjustment retaining element 323a, 323b.In addition, 2 operation lead-in wires 41a, 41b extend to this swivel plate 32 in catheter tube 2.Further, adjustment retaining element 323a, the 323b in this Fig. 2 and later figure is the schematic diagram as the generalized concept comprising hereinafter described lock pin and screw.
Operation lead-in wire 41a, 41b are drawn out from the inside by the operation pipe 40 extended in catheter tube 2 respectively, are used when the deflection action of the fore-end of catheter tube 2.In other words, be deflect near the front end of catheter tube 2 for making.Each front ends of these operation lead-in wires 41a, 41b are fastened by anchor and welding etc. is fixed on the front inner peripheral surface of front termination electrode 22 (such as, on) of catheter tube 2.In addition, each base end side extends to swivel plate 32 as mentioned above in catheter tube 2.These operation lead-in wires 41a, 41b are made up of superelastic metallic material such as such as SUS, NiTi (NiTi) respectively, and its diameter is about 100 ~ 500 μm (such as 200 μm) left and right.But, might not need to form with metal material, such as, also can be made up of the no conductive etc. of high strength.
Knob 321a, 321b are wholely set in the side of swivel plate 32 and this swivel plate 32 respectively, and in this example, centered by rotating shaft 320, knob 321a and 321b configures with point-symmetric position mutually.When operator rotates swivel plate 32, these knobs 321a, 321b correspond respectively to the part such as using the finger manipulation of a hands (pressing).
Guide rail 322 is the parts leading to each path of adjustment retaining element 323a, 323b for regulation (guiding) from operation lead-in wire 41a, 41b that the cardinal extremity of operation pipe 40 pulls out.On swivel plate 32 in this example, this guide rail 322, centered by rotating shaft 320, (is configured to the shape in catheter tube 2 side with circular arc) in arc-shaped.
Adjustment retaining element 323a, 323b are the parts (lead-in wire retaining element) of each cardinal extremity being respectively used to fixing operation lead-in wire 41a, 41b.Specifically, operation lead-in wire 41a is via the track of the knob 321a side of guide rail 32, and its cardinal extremity is conditioned to be fixed with retaining element 323a.On the other hand, operation lead-in wire 41b is via the track of the knob 321b side of guide rail 32, and its cardinal extremity is conditioned to be fixed with retaining element 323b.In addition, these adjustment retaining elements 323a, 323b respectively when each cardinal extremity of such as above-mentioned fixing operation lead-in wire 41a, 41b, can regulate arbitrarily the length of extending near its cardinal extremity.
Specifically, in this example, adjustment retaining element 323a, 323b uses lock pin and screw (tapping screw) to form respectively.In addition, these lock pins and screw are all the type of "-(negative sign) " in this example.41a, 41b are inner through this lock pin for operation lead-in wire, be wound around lock pin and fix near each cardinal extremity of these operation lead-in wires 41a, 41b, or by being fixedly welded on lock pin.Then, according to the degree of rotation of this lock pin, operation lead-in wire 41a, 41b each cardinal extremity near length of extending by adjusted, and this is extended length be conditioned after lock pin (degree of rotation of lock pin) be fixed by screw.
Herein in the present embodiment, as shown in Fig. 3 A, Fig. 3 B, the forming position of peristome 310a, 310b of setting handle main body 31, under the state bending to make to be rotated at swivel plate 32, near the front end of catheter tube 2, regulates use retaining element 323a, 323b and ft connection.In other words, set under the state of rotation process like this, the position of adjustment retaining element 323a, 323b is overlapped mutually with the forming position of peristome 310a, 310b.In addition, as shown in Fig. 3 A, Fig. 3 B, under the state that knob 321a or 321b abuts with handle main body 31, the position of adjustment retaining element 323a, 323b overlaps mutually with the forming position of peristome 310A, 310b.
Specifically, in exemplified by Fig. 3 A, the forming position of setting peristome 310a, to make at swivel plate 32 along the direction (right-hands rotation) of arrow d1a, by under the state that rotates, to regulate use retaining element 323a and ft connection.In addition, under the state that knob 321a abuts with handle main body 31, the position of adjustment retaining element 323a overlaps mutually with the forming position of peristome 310a.
On the other hand, in exemplified by Fig. 3 B, the forming position of setting peristome 310b, to make at swivel plate 32 along the direction (left-hands rotation) of arrow d1b, by under the state that rotates, to regulate use retaining element 323b and ft connection.In addition, under the state that knob 321b abuts with handle main body 31, the position of adjustment retaining element 323b overlaps mutually with the forming position of peristome 310b.
[effect]
(basic operation)
When inspection, treatment arrhythmia etc., the catheter tube 2 in this electrode catheter 1 is inserted in the body of patient by blood vessel.Now, according to the rotation process of operator to swivel plate 32, the shape near the front end being inserted in the catheter tube 2 in body changes in the two directions.
Specifically, if such as operator holds handle 3 with one, and with the finger manipulation knob 321a of this hands, swivel plate 32 is rotated along the direction (right-hand rotation) of the arrow d1a in Fig. 1, then result is as follows.That is, in catheter tube 2, operation lead-in wire 41a is pulled to base end side (adjustment retaining element 323a side) (with reference to Fig. 3 A).So, near the front end of this catheter tube 2, along the direction bending (flexure) of the arrow d2a in Fig. 1.
In addition, if such as operator's operation knob 321b, swivel plate 32 is rotated along the direction (left-hand rotation) of the arrow d1b in Fig. 1, then result is as follows.That is, in catheter tube 2, operation lead-in wire 41b is pulled to base end side (adjustment retaining element 323b side) (with reference to Fig. 3 B).So near the front end of this catheter tube 2, the direction along the arrow d2b in Fig. 1 bends.
Operator like this is by rotating swivel plate 32, and that can carry out catheter tube 2 waves deflection operation.Further, by making handle main body 31 rotate around axle (in XY plane in FIG), the state in patient body can be inserted in catheter tube 2 under, the bending direction near the front end of free setting catheter tube 2.
Herein, such as, time for checking arrhythmia, the electrode (front termination electrode 22, annular electrode 21) of the catheter tube 2 be inserted in patient body can be used to measure heart potential.Then, according to the information of this heart potential, carry out about tested position ARR with or without and the inspection of degree.
Such as, on the other hand, when being used for the treatment of arrhythmia, being installed on being energized to high frequency (RF:RadioFrequency) between pole plate (not shown) and the electrode being inserted in the catheter tube 2 in patient body of body surface of patient.Be energized by high frequency like this, the position (blood vessel etc.) for the treatment of target is optionally melted (ablation), completes the transdermal therapeutic of arrhythmia etc.
(effect of handle 3)
Further, in this electrode catheter 1, adjustment retaining element 323a, 323b on swivel plate 32, when fixing operation goes between each cardinal extremity of 41a, 41b, can regulate arbitrarily the length of extending near its cardinal extremity.Therefore, the tension force of operation lead-in wire 41a, 41b can be finely tuned, and the degree of crook (curved shape etc.) near the front end of result catheter tube 2 can be finely tuned.
Herein, utilize such adjustment retaining element 323a, 323b to the fine setting of the degree of crook near the front end of catheter tube 2, in the assembling process of handle 3, (before completing assembling) carries out.But, after the assembling of this handle 3 completes, also likely need again to carry out such fine setting operation.
Therefore, such as, about in the electrode catheter 101 of comparative example as shown in Figure 4, following problem can be there is.That is, the handle 103 of this electrode catheter 101 is different from the handle main body 31 of the handle 3 of the electrode catheter 1 of present embodiment, and handle main body 102 does not form peristome 310a, 310b.That is, the handle 103 of this comparative example after himself has been assembled, adjustment retaining element 323a, 323b on swivel plate 32 cover by handle main body 102, because it externally visibly (can not can not carry out fine setting operation).Therefore, after the assembling of handle 103 completes, if adjustment retaining element 323a, 323b need be utilized to carry out fine setting operation, need before this once decompose handle 103.For this reason, in this comparative example, working performance will reduce, and convenience is impaired.
In contrast to this, in the electrode catheter 1 of present embodiment, as depicted in figs. 1 and 2, handle main body 31 is formed with peristome 310a, 310b of making adjustment retaining element 323a, 323b on swivel plate 32 and ft connection.Therefore, as shown in Figure 3 A and Figure 3 B, adjustment retaining element 323a, 323b can see (touching) from outside by peristome 310a, 310b respectively.
Therefore, present embodiment is different from above-mentioned comparative example, after the assembling of handle 3 completes, these adjustment retaining elements 323a, 323b also can be utilized to regulate arbitrarily the length of extending near the front end of operation lead-in wire 41a, 41b.The tension force of results operation lead-in wire 41a, 41b can be finely tuned, even without as above described in comparative example once decompose handle 3 (keeping the state after assembling), the degree of crook near the front end of catheter tube 2 also can be made to be finely tuned.
In addition, particularly in this electrode catheter 1, such as shown in Figures 5 and 6, the forming position of peristome 310a, 310b is set, under the state bending to make to be rotated at swivel plate 32, near the front end of catheter tube 2, regulate with retaining element 323a, 323b and ft connection.In other words, above-mentioned catheter tube 2 wave deflection operating state under, the position of adjustment retaining element 323a, 323b overlaps mutually with the forming position of peristome 310a, 310b.
Such as, specifically, as shown in Fig. 3 A and Fig. 5, if swivel plate 32 is rotated by the direction along d1a, bend along the direction of the arrow d2a in Fig. 1 near the front end of catheter tube 2, then result is as follows.That is, the position of adjustment retaining element 323a overlaps mutually with the forming position of peristome 310a, and result makes adjustment retaining element 323a and ft connection.Therefore, such as, as shown in arrow d21a, the d22a in Fig. 5, under state bending near the front end of catheter tube 2, utilize this adjustment retaining element 323a, the fine setting of this degree of crook can be carried out.
Such as, on the other hand, as shown in Fig. 3 B and Fig. 6, if swivel plate 32 is rotated by the direction along d1b, bend along the direction of the arrow d2b in Fig. 1 near the front end of catheter tube 2, then result is as follows.That is, the position of adjustment retaining element 323b overlaps mutually with the forming position of peristome 310b, and result makes adjustment retaining element 323b and ft connection.Therefore, such as, as shown in arrow d21b, the d22b in Fig. 6, under state bending near the front end of catheter tube 2, utilize this adjustment retaining element 323b, the fine setting of this degree of crook can be carried out.
Electrode catheter 1 like this, because (disposable) can carry out the fine setting operation of the degree of crook of catheter tube 2 when rotating swivel plate 32 simultaneously, more can improve working performance, more improving convenience.
Have again, in this electrode catheter 1, as shown in Fig. 3 A and Fig. 3 B, under the state that knob 321a, 321b on swivel plate 32 side abut with handle main body 31, the position of adjustment retaining element 323a, 323b is set to mutual coincidence with the forming position of peristome 310a, 310b.Therefore, the position (carrying out the anglec of rotation of swivel plate 32 during the fine setting operation of degree of crook) that they overlap mutually is just easily learnt, operator need not confirm on hand also can mobile operating position.Therefore, it is possible to improve working performance further, improve convenience further.
As mentioned above in the present embodiment, in order to make adjustment retaining element 323a, 323b and ft connection, and in handle main body 31, define peristome 310a, 310b, so after the assembling of handle 3 completes, also can the degree of crook near the front end of catheter tube 2 be finely tuned.Therefore, can working performance be improved, improve convenience.
In addition, because use lock pin and screw to form adjustment retaining element 323a, 323b, so the length of extending of adjustment operation lead-in wire 41a, 41b can be carried out according to the swing of this lock pin.Therefore, the adjustment operation of this length of extending, that is, the fine setting operation of the degree of crook near the front end of catheter tube 2 is easily carried out, and its result can improve working performance more, more improves convenience.
< variation >
Then, variation of the present invention is described.Further, give identical symbol to the parts identical with the element in above-mentioned embodiment, and suitably the description thereof will be omitted.
[formation]
Fig. 7 is the schematic diagram of the schematic configuration example of the catheter sheath device 5 as medical apparatus and instruments represented involved by variation.Catheter sheath device 5 be by the conduit insertosome of electrode catheter 1 grade time, use in order to blood vessel dilating, on one side auxiliary electrode insert.
This catheter sheath device 5 possesses: as sheath body (long portion) protecting pipe 6 (sheath axle), be arranged on the handle 3 of the base end side of this protecting pipe 6.In addition, in the handle main body 31 of catheter sheath device 5, be inserted with the front of extension 70, be provided with the three-way stopcock 71 with 2 branch roads 721,722 at the base end side of this extension 70.
Protecting pipe 6 by same with catheter tube 2, there is elastic tubular structure (tubular part of hollow) formed, in the shape that the axis direction (Z-direction) along himself extends.In this protecting pipe 6, such as shown in Figure 7, can the catheter tube 2 etc. of electrode insertion conduit 1.In addition, in the front of protecting pipe 6, identical with the situation of catheter tube 2, be fixed with each front end of operation lead-in wire 41a, 41b.And each base end side of operation lead-in wire 41a, 41b is also identical with the situation of catheter tube 2, extend to swivel plate 32 in protecting pipe 6.Further, such protecting pipe 6 is made up of such as same with catheter tube 2 material (synthetic resin etc.).
Extension 70 is when aftermentioned medicinal liquid L1, L2 etc. being injected in protecting pipe 6 by handle main body 31 inside, as the tubular part of the stream of medicinal liquid L1, L2 etc.Further, this extension 70 is also made up of such as same with catheter tube 2 synthetic resin etc.
Three-way stopcock 71 is between branch road 721,722 and extension 70, optionally can change the connection status of stream and the parts (difference adapter) of dissengaged positions.Therefore, in this example, the medicinal liquid L1 injected can be injected into extension 70 side selectively, or the medicinal liquid L2 injected from branch road 722 side is injected into extension 70 side selectively from branch road 721 side, or the both sides of these branch road 721,722 sides are cut off.Further, as the example of such medicinal liquid L1, L2, can contrast agent etc. be enumerated.
[effect]
In this variation, substantially also can obtain the same effect produced by the effect identical with above-mentioned embodiment.Specifically, in the catheter sheath device 5 of this variation, also same with electrode catheter 1, in order to make adjustment retaining element 323a, 323b and ft connection, and in the handle main body 31 of handle 3, define peristome 310a, 310b, so following effect can be obtained.That is, after the assembling of handle 3 completes, also can finely tune the degree of crook near the front end of protecting pipe 6, result can improve working performance, improves convenience.
Other variation > of <
Although above by enumerating embodiment and variation describes the present invention, the present invention is not limited to these embodiments etc., can carry out various amendment.
Such as be not limited to the material, manufacture method etc. of described each layers such as above-mentioned embodiment and each parts, also can adopt other material, manufacture method etc.
In addition, in the above-described embodiment, although illustrate the formation of catheter tube 2 particularly, might not need to possess all parts, in addition, also can possess other parts further.Specifically, such as, in the inside of catheter tube 2, as teeter member, also can the leaf spring that can be out of shape be set on bending direction.In addition, the formation (configuration, shape, number etc. of annular electrode 21 and front termination electrode 22) of the electrode in catheter tube 2 is not limited to the examples such as above-mentioned embodiment.
Furtherly, in the above-described embodiment, although also illustrate the formation of handle 3 (handle main body 31 and swivel plate 32) particularly, might not need to possess all parts, in addition, also can possess other parts further.Specifically, such as, as the shape of the guide rail 322 on swivel plate 32, be not limited to the arc-shaped that above-mentioned embodiment etc. is lifted, such as, also can be circular.In addition, this guide rail 322 also can be integrally formed with swivel plate 32.Such as, further, as the formation lock pin of adjustment with retaining element 323a, 323b and the shape of screw, be not limited to "-" type that above-mentioned embodiment etc. is lifted, also can be "+(plus sige) " type.Further, the parts outside lock pin and screw also can be used to form this adjustment retaining element 323a, 323b.In addition, the forming position of handle main body 31 upper shed portion 310a, 310b be not limited to described in above-mentioned embodiment, rotated at swivel plate 32, under state bending near the front end of tubular part, regulate the position with retaining element 323a, 323b and ft connection, also can be other positions.That is, such as also can be at swivel plate 32 not by under the state that rotates, the position of these adjustment retaining elements 323a, 323b overlaps mutually with the forming position of peristome 310a, 310b.
Further, the pattern of shape near the front end of catheter tube 2 is not limited to the described examples such as above-mentioned embodiment.Specifically, in the above-described embodiment, although the medical apparatus and instruments type (two-way type) that the shape near the front end enumerating tubular part (catheter tube 2 or protecting pipe 6) can change in both directions according to the operation of swivel plate 32 is illustrated, be not limited thereto.That is, such as, the present invention also go for tubular part front end near the shape medical apparatus and instruments type (one-way type) that can change in one direction according to the operation of swivel plate 32.Now, one (one) operation lead-in wire, adjustment retaining element and peristome can be only set.
In addition, as the electrode catheter of an example of medical apparatus and instruments involved in the present invention, any one of the electrode catheter (so-called EP conduit) going for inspection arrhythmia etc. and the electrode catheter (so-called ablation catheter) for the treatment of arrhythmia etc.
Furtherly, in the above-described embodiment, as an example of medical apparatus and instruments involved in the present invention, although enumerate electrode catheter and catheter sheath device is illustrated, be not limited thereto.That is, such as, the present invention (handle of the present invention) also goes for other medical apparatus and instruments such as guiding catheter (guide catheter), angiographic catheter, sheath catheter (sheath conductor) and microguide.
Claims (4)
1. a medical apparatus and instruments, wherein, possesses:
Tubular part, it has elasticity;
Handle, is located at the proximal lateral of described tubular part; And
Operation lead-in wire, its proximal lateral is extended to described handle side from described tubular part, and for making the proximate distal ends of described tubular part bend,
Described handle has:
Handle main body;
Swivel plate, is installed to be and can rotates freely relative to described handle main body;
Adjustment retaining element, is located on described swivel plate, the length of extending of near proximal ends when can fix the near-end of described operation lead-in wire and can this be regulated arbitrarily fixing; And
Peristome, is formed in described handle main body, for making described adjustment retaining element and ft connection.
2. medical apparatus and instruments according to claim 1, wherein,
The forming position of described peristome is set to: rotated at described swivel plate, under state that the proximate distal ends of described tubular part is bending, described adjustment retaining element and ft connection.
3. medical apparatus and instruments according to claim 2, wherein,
The side of described swivel plate is provided with the knob for making described swivel plate rotate,
Under the state that described knob abuts with described handle main body, the position of described adjustment retaining element overlaps mutually with the forming position of described peristome.
4. the medical apparatus and instruments described in any one in claims 1 to 3, wherein,
Described adjustment retaining element uses lock pin and screw to form,
To extend described in can regulating according to the swing of described lock pin length,
And after described length of extending is conditioned, described lock pin fix by described screw.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-071169 | 2013-03-29 | ||
| JP2013071169A JP5963702B2 (en) | 2013-03-29 | 2013-03-29 | Medical equipment |
| PCT/JP2014/051963 WO2014156284A1 (en) | 2013-03-29 | 2014-01-29 | Medical instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104822411A true CN104822411A (en) | 2015-08-05 |
| CN104822411B CN104822411B (en) | 2017-06-30 |
Family
ID=51623286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480003266.XA Active CN104822411B (en) | 2013-03-29 | 2014-01-29 | Medicine equipment |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5963702B2 (en) |
| KR (1) | KR101657923B1 (en) |
| CN (1) | CN104822411B (en) |
| TW (1) | TWI583410B (en) |
| WO (1) | WO2014156284A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109953816A (en) * | 2017-12-25 | 2019-07-02 | 四川锦江电子科技有限公司 | A kind of multipole Inferior turbinate hypertrophy device |
| CN112716596A (en) * | 2020-12-23 | 2021-04-30 | 赣州市人民医院 | Aspirator with electric coagulation function |
| CN114711950A (en) * | 2022-04-11 | 2022-07-08 | 中国人民解放军空军军医大学 | A clear away equipment for superficial epidermis skin swelling thing treatment |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11628009B2 (en) * | 2014-12-17 | 2023-04-18 | Biosense Webster (Israel) Ltd. | EP catheter with trained support member, and related methods |
| TWI670040B (en) * | 2015-09-11 | 2019-09-01 | 合新生物科技股份有限公司 | Steerable electrosurgical knife |
| US10357634B2 (en) | 2016-07-28 | 2019-07-23 | Cook Medical Technologies Llc | Steerable catheter with wire-tensioning mechanism |
| WO2019150664A1 (en) * | 2018-01-31 | 2019-08-08 | 株式会社カネカ | Catheter handle and catheter having same |
| KR102120943B1 (en) * | 2018-11-09 | 2020-06-09 | 아이메디컴(주) | Electrode suction drill system |
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- 2014-01-29 WO PCT/JP2014/051963 patent/WO2014156284A1/en active Application Filing
- 2014-01-29 CN CN201480003266.XA patent/CN104822411B/en active Active
- 2014-01-29 KR KR1020157026271A patent/KR101657923B1/en active IP Right Grant
- 2014-03-13 TW TW103108891A patent/TWI583410B/en not_active IP Right Cessation
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| US6485455B1 (en) * | 1990-02-02 | 2002-11-26 | Ep Technologies, Inc. | Catheter steering assembly providing asymmetric left and right curve configurations |
| JPH08286123A (en) * | 1995-04-13 | 1996-11-01 | Fuji Photo Optical Co Ltd | Angle operating device for endoscope |
| JP2005013320A (en) * | 2003-06-24 | 2005-01-20 | Olympus Corp | Endoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109953816A (en) * | 2017-12-25 | 2019-07-02 | 四川锦江电子科技有限公司 | A kind of multipole Inferior turbinate hypertrophy device |
| CN112716596A (en) * | 2020-12-23 | 2021-04-30 | 赣州市人民医院 | Aspirator with electric coagulation function |
| CN112716596B (en) * | 2020-12-23 | 2021-11-19 | 赣州市人民医院 | Aspirator with electric coagulation function |
| CN114711950A (en) * | 2022-04-11 | 2022-07-08 | 中国人民解放军空军军医大学 | A clear away equipment for superficial epidermis skin swelling thing treatment |
| CN114711950B (en) * | 2022-04-11 | 2022-11-25 | 中国人民解放军空军军医大学 | A clear away equipment for superficial epidermis skin swelling thing treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150121160A (en) | 2015-10-28 |
| WO2014156284A1 (en) | 2014-10-02 |
| CN104822411B (en) | 2017-06-30 |
| TWI583410B (en) | 2017-05-21 |
| JP5963702B2 (en) | 2016-08-03 |
| JP2014193240A (en) | 2014-10-09 |
| TW201438778A (en) | 2014-10-16 |
| KR101657923B1 (en) | 2016-09-19 |
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