CN101584907B - Handle for pipes - Google Patents

Handle for pipes Download PDF

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Publication number
CN101584907B
CN101584907B CN2009102038568A CN200910203856A CN101584907B CN 101584907 B CN101584907 B CN 101584907B CN 2009102038568 A CN2009102038568 A CN 2009102038568A CN 200910203856 A CN200910203856 A CN 200910203856A CN 101584907 B CN101584907 B CN 101584907B
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CN
China
Prior art keywords
ratchet
handle body
handle
end shield
zhou fangxiang
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009102038568A
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Chinese (zh)
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CN101584907A (en
Inventor
大川靖洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Lifeline Co Ltd
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Japan Lifeline Co Ltd
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Publication date
Application filed by Japan Lifeline Co Ltd filed Critical Japan Lifeline Co Ltd
Publication of CN101584907A publication Critical patent/CN101584907A/en
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Publication of CN101584907B publication Critical patent/CN101584907B/en
Expired - Fee Related legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133Tip steering devices
    • A61M25/0136Handles therefor

Abstract

The invention provides a handle for pipes, wherein an operation part can be easily stopped at any radial position, the operation force of the operation part can be in fine adjustment, and the ageing of fastening force is little changed once the fastening force is set. The handle for pipes has: a handle body (24); an button for operation (22) having a medial axle part (28) moved along the axial direction and freely installed in the axle hole of the handle body (24); a front end cover (44) positioned at the periphery of the medial axle part (28), freely moved along the axial direction, and rotationally bolt-jointed with the far end of the handle body (24) surrounding the axle core; an annular elastic component (42) between the far end of the handle body (24) and the far end of the front end cover (44) and positioned at the inner periphery of the front end cover (44) and the outer periphery of the medial axle part (28), in which the fastening force at the outer periphery of the medial axle part (28) is changed according to the axial bolt-jointed position relative to the front end cover (44) of the handle body (24); and ratchet feel endowing mechanisms (50, 54) installed between the front end cover (44) and the handle body (24) and endowing the ratchet feel according to the rotational pitch angle (theta).

Description

Catheter handle
Technical field
The present invention relates to catheter handle, relate to the catheter handle of the operating physical force of fine-tuning whole operating portion in more detail.
Background technology
As catheter tube for medical treatment, the scheme of various conduits has been proposed.At the distolateral catheter handle that is typically provided with of the peri position of conduit.Catheter handle has proposed various schemes according to the kind of conduit.
The operating portion that for example has the operation catheter handle is when wanting to make the amphi position end of conduit and when crooked and tensile situation.
As the catheter handle that uses in this situation, shown in the for example following patent documentation 1, the scheme of the handle of the piston structure of the driver part that proposed in long tube, to pack into.In this existing handle, axially move relative to cylinder body through making piston, in the time of can making the amphi position end of conduit and when crooked and extend.
According to the method for using of conduit, exist amphi position end with conduit inserts in patient's the body, desire keeps conduit amphi position end former state crooked the situation of shape.Under these circumstances, catheter handle need be braked moving axially of operating portion relatively.Therefore; Annular resilient parts such as O shape ring have been proposed in piston periphery and cylinder body, to install between week; Utilize screw thread to be screwed into the screw thread amount of being screwed into of parts, the fastening force of adjustment annular resilient parts, the operating portion that makes catheter handle vertically can be in the schemes of the arresting structure in position arbitrarily.
, still, in existing handle, be to improve braking ability, if will strengthen the fastening force of ring-type elastomeric element, then exist the move operation of the operating portion of handle heavy from initial change, the problem of operating difficulties.In addition, if will improve operability, then exist the fastening force of annular resilient parts to descend, the problem that braking ability descends is difficult to the inching fastening strength.
In addition, existing handle exists because the risk that the elasticity of elastomeric element causes the fastening strength timeliness to change after the fastening strength of annular resilient parts being set for the appropriateness value.In order to prevent that timeliness from changing, considered that also the screw thread that is screwed into parts with the adhesive securement screw thread is screwed into the position, but in this case, after this, fastening strength that can not fine adjustment annular resilient parts.
[patent documentation 1] TOHKEMY 2003-319915 communique
Summary of the invention
The problem that invention will solve
The present invention proposes in view of such practical situation; Purpose is to provide a kind of catheter handle, and it can make operating portion stop easily in direction of principal axis position arbitrarily, and operating physical force that can the inching operating portion; In case behind the setting fastening force, the timeliness of fastening force changes few.
Solve the means of problem
In order to reach said purpose, catheter handle involved in the present invention comprises:
Handle body;
Operating portion with the axis part in the axis hole that is installed in to freedom of movement said handle body vertically;
Be positioned at the periphery of said axis part, vertically freedom of movement, around the axle core rotationally screw thread be combined in the preceding end shield of the amphi position end of said handle body;
The amphi position end of said handle body and said before between the amphi position end of end shield; Between the interior week and said axis periphery partly of this preceding end shield; According to the axial screw thread binding site of the said relatively handle body of end shield before said, change annular resilient parts to the fastening force of said axis outer peripheral face partly;
Be installed between said preceding end shield and the said handle body, give the ratchet sense imparting mechanism of ratchet sense according to the rotation pitch angle around the axle core of the said relatively handle body of end shield before said.
Be preferably, said ratchet sense imparting mechanism has: be fixed on the interior week of said preceding end shield, form the concavo-convex ratchet of the Zhou Fangxiang corresponding with said rotation pitch angle week with ring within it; In the periphery of said handle body, along the peripheral direction of this handle body, form, use protuberance with the ratchet of the concavo-convex engagement of Zhou Fangxiang of ring with said ratchet by the plural number interval doubly of said rotation pitch angle.
Be preferably, said ratchet forms three or more a plurality of in the periphery of said handle body along Zhou Fangxiang with protuberance.
Perhaps, said ratchet sense imparting mechanism also can have: in the periphery of said handle body, the formation concavo-convex Zhou Fangxiang jog corresponding with said rotation pitch angle; Be fixed on the interior week of said cover, week is along Zhou Fangxiang, form with the ratchet of said Zhou Fangxiang jog engagement with the ratchet of protuberance with encircling by the plural number of said rotation pitch angle interval doubly within it.
In this case, be preferably, said ratchet in the interior week of said ratchet with ring, forms three or more a plurality of along Zhou Fangxiang with protuberance.
Be preferably; The peri position end of conduit pipe fitting is fixed on the amphi position end of said operating portion; On the axis outer peripheral face partly of said operating portion, form the conical surface that diminishes to amphi position end direction external diameter, the inner peripheral surface of said annular resilient parts contacts with the outer peripheral face of the said conical surface and can constitute movably vertically.
The invention effect
In catheter handle involved in the present invention, end shield before the periphery screw thread of handle body combines is screwed into the degree of depth through regulating its screw thread, can adjust the fastening force of the outer peripheral face of annular resilient parts centering shaft portion.And at this moment, ratchet sense imparting mechanism is given the ratchet sense according to the rotation pitch angle around the axle core of the relative handle body of preceding end shield.
Therefore, can suitably guarantee the fastening force of annular resilient parts, in the stop operation portion easily of axial location arbitrarily.In addition, the screw thread that can adjust the preceding end shield of relative handle body again is screwed into the degree of depth, and the screw thread of end shield is screwed into and stops before making by the rotation pitch angle of stated number, operating physical force that can the inching operating portion.In addition, in case set after the fastening force of annular resilient parts,,, the timeliness of fastening force lacks so changing owing to rotation through the relative handle body of end shield before the restriction of ratchet sense imparting mechanism.
Description of drawings
Fig. 1 is the overall perspective view of the related conduit of an embodiment of the present invention.
Fig. 2 is the cutaway view of the major part of catheter handle shown in Figure 1.
Fig. 3 is the cutaway view of the major part of further presentation graphs 2.
Fig. 4 is the sectional elevation along IV-IV line shown in Figure 3.
Fig. 5 is the sectional elevation corresponding with Fig. 4 of the related catheter handle of another embodiment of the present invention.
Fig. 6 is the sectional elevation corresponding with Fig. 4 of the related catheter handle of another embodiment of the invention.
Symbol description
2... front end can be partial to operation conduit 4... conduit pipe fitting 20... catheter handle 22... operation with button 24... handle body 28... axis part 30... operation with silk thread 40... conical surface 42...O shape ring 50... ratchet with encircle 52, all directions of 52a... are concavo-convex 54, the 54a... ratchet is used protuberance
The specific embodiment
Below, according to embodiment explanation the present invention shown in the drawings.
As shown in Figure 1, the related front end of an embodiment of the present invention can be partial to operation conduit 2, for example is used for the diagnosis or the treatment of arrhythmia, dististyle 10 and a plurality of adapter rings 12 before the amphi position end of conduit pipe fitting (duct member) 4 is equipped with.Preceding dististyle 10 and adapter ring 12 are as electrode performance function, for example through connecting fixing with the relative conduit pipe fitting 4 of the bonding grade of bonding agent.
Peri position end at conduit pipe fitting 4 is equipped with handle body 20.Inside in conduit pipe fitting 4 and handle body 20 is drawn the admittance line respectively, and the front end of lead is electrically connected with the preceding dististyle 10 and the adapter ring 12 that constitute electrode.In addition, the cardinal extremity of these leads is connected with the adapter 21 of the rearward end that is fixed on handle body shown in Figure 2 20.The action button 22 of the deflection move operation (yaw operation) of the amphi position end be used to carry out conduit pipe fitting 4 is installed on handle body 20 in addition.
Conduit pipe fitting 4 is made up of the duct member of hollow; Also can be by constituting along the identical pipe fitting of axial characteristic; Be preferably, have the reasonable amphi position end of bendability part and amphi position end part relatively axially integrally formed, relatively have inflexible peri position end parts than the amphi position end part.In addition, in Fig. 1, though the length of conduit pipe fitting 4 diagram is shorter, in fact, than the axial length long number of handle body 20 doubly~about tens of times.
Conduit pipe fitting 4 for example is made up of synthetic resin such as polyolefin, polyamide, polyethers polyamide, polyurethane.The external diameter of conduit pipe fitting 4 is generally the degree of 0.6~3mm, and its internal diameter is the degree of 0.5~2.5mm.Insulate respectively through the axial lumen of conduit pipe fitting 4 with preceding dististyle 10 that constitutes electrode shown in Figure 1 and the lead that adapter ring 12 is connected.
Preceding dististyle 10 shown in Figure 1 and adapter ring 12, for example the metal by good conductivity such as aluminum, copper, rustless steel, gold, platinums constitutes.In addition, in order to have the radiography property good to X ray, it is preferred that these preceding dististyles 10 and adapter ring 12 are made up of platinum etc.Though before not special qualification of external diameter of dististyle 10 and adapter ring 12, with the external diameter equal extent of conduit pipe fitting 4 be preferred, be generally the degree of 0.5~3mm.
The yaw parts are being accommodated near the amphi position end of conduit pipe fitting 4 inside.Do not limit especially as the yaw parts, for example constitute by leaf spring etc.On leaf spring, connect the amphi position end of fixing operation like Fig. 2~shown in Figure 4 with silk thread 30 as these yaw parts.
Though operation does not limit with the external diameter of silk thread 30 is special, is preferably 0.01~0.3mm, more preferably 0.03~0.08mm.This operation is that superelastic alloy constitutes by Ni-Ti for example with silk thread 30, but needn't be made up of metal.Operation for example also can be made up of high-intensity non-conductive silk thread etc. with silk thread 30.
Operation is with the peri position end of silk thread 30, and is as shown in Figure 2 behind the tension force of adjustment operation with silk thread 30 in this embodiment, is fixed on the thread tension adjustor 32.Thread tension adjustor 32 is in the inside that moves axially the handle body 24 that is mounted freely on handle 20.Through this thread tension adjustor 32 is fixed on the axial location of handle body 24 internal rules, can adjust the tension force of operation with silk thread 30.
As shown in Figure 2, the peri position end of conduit pipe fitting 4 is fixed on operation with on button 22 and the axis part 28 through sleeve pipe 26.Operate corresponding with operating portion with button 22 and axis part 28.Axis part 28 is inserted the inside of the axis hole 25 that is formed at handle body 24 inside, and handle body moves axially free state for 24 one-tenth relatively.
The operator catches handle body 24 with one hand, with button 22, makes axis part 28 relative handle body 24 movable operation vertically with this singlehanded finger manipulation operation.Because axis part 28 is fastened on the peri position end of conduit pipe fitting 4, so when making axis part 28 when handle body 24 moves vertically, the peri position end of conduit pipe fitting 4 is operated relatively with silk thread 30 and relatively moved in the axial direction.In addition, operation is fixed on the front end of silk thread 30 near the yaw parts the amphi position end of being located at conduit pipe fitting 4, and the peri position end of operating with silk thread 30 is fixed on the thread tension adjustor 32 that is fixed in handle 20.
When making axis part 28 to the amphi position end side shifting, then remain fixed under the state on the thread tension adjustor 32 with the peri position end of silk thread 30 in operation, the peri position end of conduit pipe fitting 4 relatively moves to amphi position is distolateral.In this case,, operation is applied tension force with silk thread 30, conduit pipe fitting 4 is axially being applied compression stress through the operation of this axis part 28.In addition, because operation is almost constant with the axial length of silk thread 30 and conduit pipe fitting 4, so conduit pipe fitting 4 and operation will bendings with silk thread 30.Its result, as shown in Figure 1, the action of yaw deflection is carried out in the amphi position end of conduit pipe fitting 4 shown in arrow A.
That is, the amphi position end of conduit 2 passes through the operation of the handle 20 shown in Figure 1 of X operation vertically with button 22, and the A direction is tortuous to be moved thereby can be partial to.In addition,, then inserting under the endoceliac state, can freely set the direction of the A direction of relative conduit 2 if handle body 20 is rotated around axle.
At this embodiment, as shown in Figure 2, on the outer peripheral face of axis part 28, form the conical surface 40.The conical surface 40 is conical surfaces that the distolateral external diameter of the amphi position of more past handle body 24 diminishes more.The axial length of the preferred conical surface 40 and operation with button 22 relative handle body 24 in the equal in length of axial relatively-movable scope or longer.Specifically, the length that the conical surface 40 is axial is preferably 5~20mm.The mutually countershaft core in awl angle of inclination of the conical surface 40 is preferably the angle of 0.1~2.0 degree.
The maximum outside diameter of the conical surface 40 is sizes little or more equal than the internal diameter of axis hole shown in Figure 2 25, with decision operation with cylindrical shell 28 vertically X move in the inside of axis hole 25.Operation is preferably grown 40~80mm with cylindrical shell 28 axial length than the axial length of the conical surface 40.
Peripheral shape at the amphi position end 24a of handle body 24 becomes outer screw section 51, pro-end shield 44 interior week form female thread portion 52.Outer screw section 51 and the 52 screw threads combination of female thread portion.The internal diameter of the amphi position end 44a of preceding end shield 44 is littler than the internal diameter in the interior week of the preceding end shield 44 that is formed with female thread portion 52.Between the amphi position end 44a of the amphi position end 24a of handle body 24 and preceding end shield 44, between the periphery of interior week of female thread portion 52 and axis part 28, form O shape annular groove 46.
The O shape that in O shape annular groove 46, is installed with as the annular resilient parts is encircled 42, in its axial both sides packing ring 41 and 43 is installed.The female thread portion 52 of end shield 44 before being screwed into through the outer screw section 51 with handle body 24 regulates the axial length of O shape annular groove 46, O shape ring 42 distortion vertically, the fastening force change of the conical surface 40 of O shape ring 42 relative axis parts 28.
O shape ring 42 for example is made up of rubber such as silicone rubber, acrylonitrile-butadiene rubber, fluorubber or synthetic resin etc.It is preferred that packing ring 41,43 for example is made up of fluororesin, metal etc.
Fig. 3 is the cutaway view of the major part of presentation graphs 2.Shown in Figure 3 like this, on interior week, utilize screw thread combination fixed ratchet wheel with ring 50 near the cylindrical portions may 44b of the peri position end of preceding end shield 44.That is, as shown in Figure 3, ratchet is the cyclic parts that have with the roughly the same external diameter of internal diameter of cylindrical portions may 44b with ring 50, its outer peripheral portion form can with the bonded pin thread of the female thread in the interior week that is located at cylindrical portions may 44b.In addition, ratchet also can use with ring 50 realize on the inner peripheral surface of the means pro-end shield 44 beyond the screw thread combination integrated.For example, on the inner peripheral surface of end shield 44, perhaps integrally formed before ratchet can be bonded in ring 50 through injection moulding.
As shown in Figure 4, on the inner peripheral surface of ratchet usefulness ring 50, form and rotate the corresponding Zhou Fangxiang concavo-convex 52 of pitch angle θ.The rotation pitch angle θ of Zhou Fangxiang concavo-convex 52 is between adjacent concavo-convex 52 protuberance and the protuberance or the angle around the axle core between recess and the recess, is preferably 5~10 degree.
In addition, on the outer peripheral face of the handle body 24 of all sides that are positioned at this ring 50, with the ratchet of concavo-convex 52 engagements of Zhou Fangxiang with protuberance 54 along Zhou Fangxiang by the plural number that rotates pitch angle θ interval formation doubly.In embodiment shown in Figure 4, along the outer peripheral face of handle body 24 at Zhou Fangxiang by the interval of 90 degree at integrally formed four ratchets of the outer peripheral face of handle body 24 with protuberance 54.Ratchet is equivalent to ratchet sense imparting mechanism with ring 50 and ratchet with protuberance 54.
Then, can be partial to the method for using of operating conduit 2 to the related front end of this embodiment describes.The operator catches handle body 24 with one hand, and is with button 22, as shown in Figure 2 with this singlehanded finger manipulation operation, and operation is operated to being pulled away from direction with the amphi position end of 22 the past of button end shield 44.In this case, because axis part 28 is fastened on the peri position end of conduit pipe fitting 4,, conduit pipe fitting 4 moves axially relatively with silk thread 30 so operating relatively.Its result, as shown in Figure 1, the amphi position end of conduit pipe fitting 4 becomes case of bending from linear state shown in arrow A.
And in this embodiment, move to the amphi position end direction relative to handle body 24 through axis part 28, O shape ring 42 relative these axis parts 28 move axially relatively from the big side of the little side direction of the external diameter of the conical surface 40.That is, in this case, answer, O shape ring 42 is increased to the power of the direction of circumferencial direction expansion with this mobile phase.In addition, because the internal diameter of cannelure 46 is constant, so move correspondingly with this, the interval of axis part 28 and O shape annular groove 46 narrows down, O shape ring 42 pushing axis parts 28 and before the power of end shield 44 strengthen, the frictional force of O shape ring 42 and axis part 28 increases.
In addition, make axis part 28 relative to handle body 24 when peri position extreme direction moves, O shape ring 42 relative axis parts 28 are located opposite from the position of the external diameter minimum of the conical surface 40.Therefore, in this case, because the interval of axis part 28 and O shape annular groove 46 is the wideest, so the power of O shape ring 42 pushing axis parts 28 and preceding end shield 44 is minimum, the frictional force of O shape ring 42 and axis part 28 reduces.Therefore, make operation with button 22 relatively handle body 24 operate with button 22 mobile vertically to leaving the mobile initial stage that axial direction moves by very light power.
In addition, even let the finger leave operation,, so, operate not moving axially with button 22 owing to its frictional force because O shape ring 42 contact with the big conical surface 40 of external diameter with button 22.Therefore, even let the finger leave operation with button 22, the amphi position end of conduit pipe fitting 4 as shown in Figure 1 also can keep crooked state.
For the amphi position end that makes conduit pipe fitting 4 shown in Figure 1 is a straight condition, against the frictional force of the conical surface 40, as long as it is just passable that operation is moved axially with button 22 with O shape ring 42.At this moment, the O shape ring 42 big outer radius portion from the conical surface 40 move to little outer radius portion, so the frictional force of the conical surface 40 and O shape ring 42 diminishes gradually.
In the related catheter handle 20 of this embodiment, preceding end shield 44 screw threads are combined on the periphery of handle body 24, be screwed into the degree of depth through regulating its screw thread, can adjust the fastening force that O shape is encircled the periphery conical surface 40 of 42 centering shaft portions 28.And, at this moment, through as the engagement of the ratchet of ratchet sense imparting mechanism, give ratchet sense (snapping sound and sensation) according to the rotation pitch angle θ around a core of preceding end shield 44 relative handle body 24 with protuberance 54 and Zhou Fangxiang concavo-convex 52.Therefore, the operator can rotate that the screw thread of end shield 44 is screwed into the degree of depth before the inching of pitch angle to each.That is, the operator can encircle 42 fastening force according to the number inching O shape of ratchet sense.
Therefore, can suitably guarantee the fastening force of O shape ring 42, can make operation with button 22 stop easily at any axial location.In addition; The screw thread that can adjust the preceding end shield 44 of relative handle body 24 again is screwed into the degree of depth; The screw thread of end shield 44 is screwed into before can stopping by the rotation pitch angle θ of stated number, can inching O shape encircle 42 fastening force, i.e. inching operation is with the operating physical force of button 22.In addition, in case after the fastening force of O shape ring 42 is set, owing to, limit the rotation of the preceding end shield 44 of relative handle body 24, lack so the timeliness of the fastening force of the conical surface 40 of O shape ring 42 changed through the engagement of ratchet with protuberance 54 and Zhou Fangxiang concavo-convex 52.
In addition, the invention is not restricted to above-mentioned embodiment, can carry out various changes.For example; In above-mentioned embodiment, as shown in Figure 4, uniformly-spaced form four ratchets with protuberance 54 in the periphery of handle body 24 along Zhou Fangxiang; But also can be as shown in Figure 5, along Zhou Fangxiang uniformly-spaced or unequal interval form three or other quantity ratchet with protuberance 54.But on the outer peripheral face of handle body 24, uniformly-spaced forming three or more ratchet along Zhou Fangxiang is preferred with protuberance 54.When forming three or more ratchet with protuberance 54, can alleviate relative handle body 24 the rocking of axis part 28 (operating portion) (to the rocking of axial vertical direction).
Or it is as shown in Figure 6; On the outer peripheral face of handle body 24; Form the concavo-convex 52a of Zhou Fangxiang accordingly with rotation pitch angle θ shown in Figure 4; On the inner peripheral surface of ratchet, also can form with the ratchet of the concavo-convex 52a engagement of Zhou Fangxiang by the plural number that rotates pitch angle interval doubly and use protuberance 54a along Zhou Fangxiang with ring 50.Ratchet is equivalent to ratchet sense imparting mechanism with ring 50 and ratchet with protuberance 54.
And then, catheter handle involved in the present invention, the front end that is not limited to illustrated embodiment can be partial to the operation conduit, also goes for other conduit.

Claims (6)

1. catheter handle, it comprises:
Handle body;
Operating portion with axis part, this axis part is installed in to freedom of movement in the axis hole of said handle body vertically;
Preceding end shield, this preceding end shield are positioned at the periphery of said axis part, are combined in the amphi position end of said handle body with the mode screw thread that centers on to freedom of movement the rotation of axle core vertically;
The annular resilient parts; These annular resilient parts the amphi position end of said handle body and said before between the amphi position end of end shield; Between the interior week and said axis periphery partly of this preceding end shield; According to the axial screw thread binding site of the said relatively handle body of end shield before said, these annular resilient parts change the fastening force to the outer peripheral face of said axis part;
Ratchet sense imparting mechanism, this ratchet sense imparting mechanism are installed between said preceding end shield and the said handle body, according to the rotation pitch angle around the axle core of the said relatively handle body of end shield before said, give the ratchet sense.
2. catheter handle as claimed in claim 1; It is characterized in that; Said ratchet sense imparting mechanism comprises: ratchet is with ring, and this ratchet is with encircling the interior week that is fixed on said preceding end shield, and is concavo-convex with the interior week formation of the ring Zhou Fangxiang corresponding with said rotation pitch angle at this ratchet; Ratchet is used protuberance, and it along the peripheral direction of this handle body, by the plural number interval formation doubly of said rotation pitch angle, uses Zhou Fangxiang concavo-convex mesh encircled with said ratchet in the periphery of said handle body.
3. catheter handle as claimed in claim 2 is characterized in that, said ratchet forms three or more a plurality of in the periphery of said handle body along Zhou Fangxiang with protuberance.
4. catheter handle as claimed in claim 1 is characterized in that, said ratchet sense imparting mechanism comprises: in the periphery of said handle body, the formation concavo-convex Zhou Fangxiang jog corresponding with said rotation pitch angle; Ratchet is with ring, and this ratchet is fixed on interior week of said cover with ring, in the interior week of this ratchet with ring, forms with the ratchet of said Zhou Fangxiang jog engagement along Zhou Fangxiang, by the plural number interval doubly of said rotation pitch angle and to use protuberance.
5. catheter handle as claimed in claim 4 is characterized in that, said ratchet forms three or more a plurality of at said ratchet with the inner edge Zhou Fangxiang that encircles with protuberance.
6. like each described catheter handle in the claim 1~5; It is characterized in that; The peri position end of conduit pipe fitting is fixed on the amphi position end of said operating portion; On the axis outer peripheral face partly of said operating portion, form the conical surface that diminishes to amphi position end direction external diameter, the inner peripheral surface of said annular resilient parts contacts with the outer peripheral face of the said conical surface and can constitute movably vertically.
CN2009102038568A 2008-05-20 2009-05-20 Handle for pipes Expired - Fee Related CN101584907B (en)

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JP2008132515 2008-05-20
JP2008-132515 2008-05-20
JP2008132515A JP4173531B1 (en) 2008-05-20 2008-05-20 Catheter handle

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CN101584907B true CN101584907B (en) 2012-09-12

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JP5686386B2 (en) * 2013-01-20 2015-03-18 株式会社リバーセイコー Catheter bending operation device
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HK1137675A1 (en) 2010-08-06
KR100929497B1 (en) 2009-12-03
JP4173531B1 (en) 2008-10-29
CN101584907A (en) 2009-11-25

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