CN104010691A

CN104010691A - Catheter Handle

Info

Publication number: CN104010691A
Application number: CN201380004454.XA
Authority: CN
Inventors: 桝田拓也
Original assignee: Japan Lifeline Co Ltd
Current assignee: Japan Lifeline Co Ltd
Priority date: 2012-03-19
Filing date: 2013-02-08
Publication date: 2014-08-27
Anticipated expiration: 2033-02-08
Also published as: TW201406417A; JP2013192670A; CN104010691B; JP5535260B2; WO2013140889A1; TWI522136B

Abstract

A catheter handle provided with a main handle body (10), a rotation-operating section having a rotating plate (20) and a middle member (25), an adjustment pin (30), an adjustment knob (40), and an O-ring (50), wherein: the middle member (25) is disposed between a first rotating member (21) and a second rotating member (22) that configure the rotating plate (20) and is fixed with respect to the main handle body (10) so as not to be rotatable; guide grooves (251, 252) for extending a tube (70), which is inserted into the main handle body (10), along the central axis (Z) of the main handle body (10) and an outer circumferential wall (253) of the rotation-operating section are integrally formed in the middle member (25); and a through hole (35) through which the tube (70), which extends along the central axis (Z), can be inserted is formed in the adjustment pin (30). Using said catheter handle, long components such as lead wires, various kinds of tubes, etc. that are inserted into the interior from the leading end can be extended along the central axis in the longitudinal direction.

Description

Catheter handle

Technical field

The present invention relates to catheter handle, more specifically, relate to the base end side that is installed in catheter shaft and the catheter handle that forms the conduit that can carry out front end deflection operation.

Background technology

Catheter tube for medical treatment is provided with handle in cardinal extremity (peri position end) side of catheter shaft conventionally.

As catheter handle, according to the kind of conduit, propose to have various handles.For example, sometimes want to make the fore-end (amphi position end) of conduit by catheter handle being operated come crooked or extending.As like this for holding that side operates the fore-end of conduit and the mechanism that makes its deflection, introduction have by behaviour position cardinal extremity be linked to the swivel plate of installing in the mode that can rotate with respect to handle body, this swivel plate is rotated to operation, thus the mechanism's (referring to Patent Document 1) that makes the direction of the front end of conduit change (deflection).

And as the catheter handle that can adjust the operating physical force of swivel plate, the applicant proposes catheter handle (referring to Patent Document 2) as shown in Figure 6.

This catheter handle possesses: handle body; Swivel plate 83, it is disposed between the grip member 81 and grip member 82 that forms this handle body; Adjusting pin 84, it is configured to base portion 841 and is fixed on grip member 81, and connects this swivel plate 83 along the rotating shaft of swivel plate 83, and the leading section of this adjusting pin 84 becomes external thread part 842; Adjustment knob 85, it has the internal thread part 852 that the external thread part 842 with this adjusting pin 84 screws togather, and installs in the mode that can rotate with respect to grip member 82; O type ring 86, it is disposed between grip member 81 and swivel plate 83, the operating physical force of swivel plate 83 is changed according to the external thread part 842 of adjusting pin 84 and the degree of depth (screw-in depth) that screws togather of the internal thread part 852 of adjustment knob 85; And packing ring 87, it is disposed between grip member 82 and swivel plate 83.

By making the adjustment knob 85 of this handle with respect to grip member 82 rotations, make the change in depth that screws togather of external thread part 842 and internal thread part 852, thus, the fastening force to swivel plate 83 based on O type ring 86 changes.At this, large if the fastening force based on O type ring 86 becomes, the operation of swivel plate 83 becomes heavy, if fastening force diminishes, the operation of swivel plate 83 lightens.

The inside of the swivel plate 83 of the catheter handle shown in pie graph 6 becomes example state as shown in Figure 7.

As shown in Figure 7, the behaviour's position 91a that extends to the inside of swivel plate 83 from operation with pipe 90 configures along circular guide rail (protuberance) 92 on the right side of swivel plate 83, and is fixed on swivel plate 83 by wire rod fixture 93a.On the other hand, the periphery along circular guide rail (protuberance) 92 configures in the left side of swivel plate 83 from operation, with pipe 90, to extend to behaviour's position 91b of inside of swivel plate 83, and is fixed on swivel plate 83 by wire rod fixture 93b.In Fig. 7,94a, 94b are the buttons of swivel plate 83, the 95th, be formed at the periphery wall (protuberance) of swivel plate 83.

If from the state shown in Fig. 7 by swivel plate 83 direction rotation towards arrow 96a, the behaviour's position 91a along the periphery configuration of guide rail 92 is pulled, thereby makes to be installed on the fore-end crooked (deflection) to the right of catheter shaft of the front of handle.On the other hand, if by swivel plate 83 direction rotation towards arrow 96b, the behaviour's position 91b along the periphery configuration of guide rail 92 is pulled, thereby makes to be installed on the fore-end crooked (deflection) to the left of catheter shaft of the front of handle body.

Patent documentation 1: TOHKEMY 2005-230471 communique

Patent documentation 2: TOHKEMY 2010-94353 communique

In the inside of catheter handle, from the cardinal extremity of catheter shaft, be inserted with the elongate members such as the wire of electrode, various pipes, these elongate members extend to the inside of handle.In addition, sometimes also make catheter shaft itself extend to handle inside.

Yet, on the inside of handle and the central shaft at its length direction, dispose swivel plate, in addition, in the handle of the operating physical force that can adjust swivel plate as shown in Figure 6, on the rotating shaft of swivel plate 83, dispose adjusting pin 84, the elongate members that therefore cannot make to insert the inside of handle is extended along the central shaft of the length direction of handle, must make these elongate members roundabout to avoid the mode of swivel plate, adjusting pin.For example, in the inside of the handle shown in Fig. 6, elongate members is passed between grip member 81 and swivel plate 83.

Roundabout in order to make elongate members avoid swivel plate, adjusting pin as described above, must make this elongate members crooked.

Yet, if make elongate members that is wire bending, there is the worry of kinking, broken string.

In addition, for example, if the supply pipe of normal saline of conduit that possesses filling mechanism is crooked greatly, there is the worry that produces leakage.

And, if the protecting pipe of sheath pipe (sheath catheter) (adjustable type catheter sheath (steerablesheath)) bending, in the logical difficulty that becomes of inserting of the sweep conduit of protecting pipe etc.

On the other hand, the roundabout elongate members in the situation that walk around swivel plate (through the elongate members between swivel plate and grip member) contacts with swivel plate, the swivel plate of rotation is the surface of the elongate members of nuzzling up, thereby while there is operation, produces the situation of abnormal sound or elongate members (particularly wire) damage.

Summary of the invention

The present invention is that the situation based on above produces.

The first object of the present invention is to provide a kind of catheter handle, and it can make to insert from front the elongate members such as inner wire, various pipes central shaft alongst and extend.

The second object of the present invention is to provide a kind of catheter handle, and it can make to insert inner elongate members from front and can not contact with swivel plate, and central shaft alongst extends.

(1) catheter handle, it is installed on the base end side of catheter shaft,

Described catheter handle is characterised in that,

Possess:

Handle body, it forms first in command's parts and second in command's unit construction;

Rotary manipulation portion, it is disposed between above-mentioned first in command's parts and above-mentioned second in command's parts, and the mode with respect to above-mentioned handle body with rotating shaft rotation that can be vertical around the length direction with this handle body is mounted, and there is swivel plate, at this swivel plate, link the cardinal extremity of the behaviour's position that is useful on the front end deflection that makes above-mentioned catheter shaft;

Adjusting pin, its mode being configured to cannot rotate with respect to above-mentioned first in command's parts is fixed, and connects this swivel plate along the rotating shaft of above-mentioned swivel plate, and has external thread part at the front end of this adjusting pin;

Adjustment knob, it has the internal thread part that the external thread part with above-mentioned adjusting pin screws togather, and is mounted in the mode that can rotate with respect to above-mentioned second in command's parts; And

Elastomeric element, it is disposed between above-mentioned handle body (above-mentioned first in command's parts or above-mentioned second in command's parts) and above-mentioned swivel plate, with the degree of depth that screws togather according to the internal thread part of the external thread part of above-mentioned adjusting pin and above-mentioned adjustment knob, the operating physical force of above-mentioned swivel plate is changed

Above-mentioned rotary manipulation portion possesses:

Above-mentioned swivel plate, it combines the first discoideus rotary part and the second rotary part that mutually form same footpath; And

Intermediate member, it is disposed between above-mentioned the first rotary part and above-mentioned the second rotary part, and is fixed in the mode that cannot rotate with respect to above-mentioned handle body,

At above-mentioned intermediate member, formed,

For making, from front, insert the guiding road that the elongate members of the inside of above-mentioned handle body is extended along the central shaft of the length direction of this handle body; And

The periphery wall with the above-mentioned rotary manipulation portion of the shape consistent with the peripheral shape of above-mentioned swivel plate,

At above-mentioned adjusting pin, be formed with and can insert logical through hole for the elongate members of extending along above-mentioned central shaft.

According to the handle of such structure, by making swivel plate rotation, pull operation line can make the fore-end of catheter shaft crooked, thereby makes its front end deflection.

And, by configuring intermediate member between the first rotary part at formation swivel plate and the second rotary part, this intermediate member is played a role as spacer, thereby can between the first rotary part and the second rotary part, guarantee the logical space of inserting of elongate members (around the space of the central shaft of the length direction of handle body).

In addition, by being formed at the guiding road of intermediate member and the through hole that is formed at adjusting pin, the bearing of trend of the elongate members of the inside of restriction insertion handle body, thus, can make this elongate members along the central shaft extension of the length direction of handle body.

Therefore in addition, intermediate member and adjusting pin are all fixed in the mode that cannot rotate with respect to handle body, even if make swivel plate rotation, by intermediate member and adjusting pin and the bearing of trend of confined elongate members can not change yet.

In addition, by being formed at the periphery wall of the rotary manipulation portion of intermediate member, can prevent swivel plate to be rotated the stretching out of behaviour's position in when operation.

In addition, intermediate member is fixed in the mode that cannot rotate with respect to handle body, even if therefore make swivel plate rotation, also can not hinder because of the periphery wall of rotary manipulation portion the front end deflection of being undertaken by behaviour's position to operate.

In addition, limit the guiding road of bearing of trend of elongate members and the component part of the intermediate member that the periphery wall of rotary manipulation portion is fixed as the mode cannot rotate with respect to handle body and form, even if therefore make swivel plate rotation, the periphery wall of rotary manipulation portion can not interfered the elongate members that has been limited bearing of trend by guiding road yet.

(2) in catheter handle of the present invention, preferably so that the elongate members of extending along the central shaft of the length direction of above-mentioned handle body and above-mentioned the first rotary part and above-mentioned the second rotary part the two all discontiguous mode (making elongate members from the separated mode of the inner surface of rotary part) be formed with above-mentioned guiding road.

Guiding road by such formation guides elongate members, thereby do not make the first rotary part and/or the second rotary part contacts with this elongate members of extending along above-mentioned central shaft, so the generation of abnormal sound can prevent reliably the operation of swivel plate time is, the damage of elongate members (scratch).

(3) in catheter handle of the present invention, preferably so that the elongate members of extending along the central shaft of the length direction of above-mentioned handle body and above-mentioned the first rotary part and above-mentioned the second rotary part the two all discontiguous mode be formed with the through hole of above-mentioned adjusting pin.

By by elongate members through the through hole forming like this, can effectively prevent this elongate members deflection or lax and contact with rotary part.

(4), in catheter handle of the present invention, the guiding road of preferred above-mentioned intermediate member is to be formed at the front of this intermediate member and the guiding groove of base end side.

(5) in catheter handle of the present invention, supply pipe or protecting pipe that preferred above-mentioned elongate members is pipe, particularly normal saline.

In addition, above-mentioned pipe can be also catheter shaft.

According to catheter handle of the present invention, can make to insert from front the elongate members such as the wire of the inside of handle body, various pipes along the central shaft extension of the length direction of handle body.Thus, in the inside of handle body, do not need to make elongate members crooked, thereby can avoid being accompanied by bending and the above-mentioned problem that produces.

In addition, by for example, to being formed at the guiding road of intermediate member and the through hole of adjusting pin (is adjusted, to guiding road that is the degree of depth of guiding groove, the diameter of through hole is adjusted), can make the elongate members of inserting the inside of handle body from front contact with swivel plate (the first rotary part and the second rotary part), but along the central shaft extension of the length direction of handle body.The problem of the generation of the abnormal sound in the time of thus, can avoiding operating, the damage of elongate members (scratch).

Accompanying drawing explanation

Fig. 1 means the top view of the conduit of the handle that possesses an embodiment of the invention.

Fig. 2 means the sectional elevation (II-II cutaway view of Fig. 1) of the major part of the handle shown in Fig. 1.

Fig. 3 means the longitudinal section (III-III cutaway view of Fig. 1) of the major part of the handle shown in Fig. 1.

Fig. 4 means the cutaway view (IV-IV cutaway view of Fig. 2) of the major part of the handle shown in Fig. 1.

Fig. 5 means the axonometric chart of the component parts of the handle shown in Fig. 1.

Fig. 6 means the sectional elevation of the major part of existing catheter handle.

Fig. 7 means the cutaway view (VII-VII cutaway view of Fig. 6) of the major part of existing catheter handle.

The specific embodiment

The handle 100 of the present embodiment shown in Fig. 1～Fig. 5 is to be installed on the base end side of catheter shaft 200 and the handle that forms electrode catheter (can carry out the conduit of front end deflection operation), and possess: handle body 10, it combines first in command's parts 11 and second in command's parts 12, rotary manipulation portion, it is disposed between first in command's parts 11 and second in command's parts 12, and has the swivel plate 20 can install around the mode of rotating shaft (P) rotation with respect to handle body 10, adjusting pin 30, it is configured to base portion 31 and is fixed on first in command's parts 11, and connects swivel plate 20 along rotating shaft (P), and has external thread part 33 at the front end of this adjusting pin 30, adjustment knob 40, it has the internal thread part 43 that the external thread part 33 with this adjusting pin 30 screws togather, and installs in the mode that can rotate with respect to second in command's parts 12, O type ring 50 (elastomeric element), it is disposed between first in command's parts 11 and swivel plate 20, the operating physical force of swivel plate 20 is changed according to the external thread part 33 of adjusting pin 30 and the degree of depth that screws togather of the internal thread part 43 of adjustment knob 40, and packing ring 55, it is disposed between second in command's parts 12 and swivel plate 20, and above-mentioned rotary manipulation portion possesses: swivel plate 20, it combines the first rotary part 21 and the second rotary part 22, and intermediate member 25, it is disposed between the first rotary part 21 and the second rotary part 22 that forms swivel plate 20, and fix in the mode that cannot rotate with respect to handle body 10, at this intermediate member 25, formed, the guiding groove (guiding groove 251 of front and the guiding groove 252 of rear end side) extending along the central shaft (Z) of the length direction of handle body 10 for making to insert the pipe 70 (elongate members) of the inside of handle body 10, with the periphery wall 253 with the rotary manipulation portion of the shape consistent with the peripheral shape of swivel plate 20, at adjusting pin 30, be formed with and can insert logical through hole 35 for the pipe 70 extending along central shaft (Z).

Conduit shown in Fig. 1 is the electrode catheter for diagnosis or the treatment of arrhythmia, and this electrode catheter consists of catheter shaft 200 and the handle 100 that is installed on the present embodiment of its base end side.

Termination electrode 201 and a plurality of ring electrode 202 before the amphi position end of catheter shaft 200 is provided with.

Catheter shaft 200 consists of the tube part of hollow, and such as being formed by synthetic resin such as polyolefin, polyamide, polyether block amide or polyurethanes.

The external diameter of catheter shaft 200 is generally 0.6～3.0mm, and its internal diameter is generally 0.5～2.5mm.

In addition,, though illustrate the length of catheter shaft 200 in Fig. 1 shortlyer, in fact the length of the Length Ratio handle 100 of catheter shaft 200 is grown several times～tens times left and right.

At the tube chamber of catheter shaft 200, insert and be connected with the wire being connected with front termination electrode 201 and ring electrode 202.

Front termination electrode 201 shown in Fig. 1 and ring electrode 202, such as consisting of good metals of electric conductivity such as aluminum, copper, rustless steel, gold or platinum.The external diameter of front termination electrode 201 and ring electrode 202 does not limit especially, but the external diameter formed objects of preferred and catheter shaft 200.

As shown in Fig. 2, Fig. 3 and Fig. 5, form the handle body 10 of the handle 100 of present embodiment, first in command's parts 11 of cutting apart formation are formed with 12 combinations of second in command's parts.

The rotary manipulation portion of the handle 100 of present embodiment, has swivel plate 20 (movable member) and intermediate member 25 (fixed part).

The movable member of rotary manipulation portion that is swivel plate 20, combine the first discoideus rotary part 21 and the second rotary part 22 that mutually form same footpath and form.In addition, at this swivel plate 20, be provided with button 23.

This swivel plate 20 is configured to, across O type ring 50, be configured first in command's parts 11 and 12 clampings of second in command's parts of handle body 10 with packing ring 55, this swivel plate 20 with respect to handle body 10 (first in command's parts 11 and second in command's parts 12) centered by by the rotating shaft vertical with its length direction (P) and the mode that can rotate is mounted.

At swivel plate 20, be connected with the cardinal extremity separately (peri position end) of two not shown behaviour's positions.The front end separately (amphi position end) of behaviour's position is connected with leaf spring, and this leaf spring is accommodated in the inside of the fore-end of catheter shaft 200 as tilting member.

If make swivel plate 20 towards arrow A 1 direction rotation shown in Fig. 1, behaviour's position of a side is pulled, thereby the fore-end of catheter shaft of front of handle that makes to be installed on present embodiment 100 is towards arrow A direction crooked (deflection).

On the other hand, if make swivel plate 20 towards arrow B 1 direction rotation shown in Fig. 1, behaviour's position of opposite side is pulled, thereby the fore-end of catheter shaft of front of handle 100 that makes to be installed on present embodiment is towards arrow B direction crooked (deflection).

In addition, as long as the handle 100 that makes present embodiment, around central shaft (Z) rotation of the length direction of handle body 10, can insert under endoceliac state, freely set with respect to the A direction of handle or B direction towards.

At this, constituent material as handle body 10 (first in command's parts 11 and second in command's parts 12) and swivel plate 20 (the first rotary part 21 and the second rotary part 22), can list the synthetic resin such as Merlon, ABS resin, acrylic resin, polyolefin or polyformaldehyde.

As shown in Fig. 2, Fig. 3 and Fig. 5, the adjusting pin 30 that forms the handle 100 of present embodiment is configured to, and has formed base portion 31, trunk 32 and external thread part 33 (leading section).

Adjusting pin 30 is configured to so that the mode that its base portion 31 cannot rotate with respect to first in command's parts 11 is fixed, and connects swivel plate 20 along rotating shaft (P).

As shown in Fig. 2, Fig. 3 and Fig. 5, the adjustment knob 40 that forms the handle 100 of present embodiment is configured to, and has formed button portion 41, plectane portion 42 and internal thread part 43.

The internal thread part 43 of adjustment knob 40 can screw togather with the external thread part 33 of adjusting pin 30, and according to the external thread part 33 of the internal thread part 43 of adjustment knob 40 and adjusting pin 30 screw togather the degree of depth (screw-in depth), make the change of distance of first in command's parts 11 and second in command's parts 12.

By the variation of this distance, make to change being disposed at the compression stress of the O type ring 50 between first in command's parts 11 and swivel plate 20 (the first rotary part 21), and then the fastening force (operating physical force of swivel plate) being produced by 50 pairs of swivel plates of O type ring 20 is changed.At this, if make first in command's parts 11 and the distance of second in command's parts 12 narrow down and make to become large by the fastening force of O type ring 50 generations, the operation of swivel plate 20 becomes heavy, if make this distance broaden and fastening force is diminished, the operation of swivel plate 20 lightens.

At this, O type ring 50 is by the superior material of elasticity, formations such as silicone rubber, acrylonitrile-butadiene rubber or fluorubber.

In addition, be disposed at the packing ring 55 between second in command's parts 12 and swivel plate 20 (the second rotary part 22), preferably by the superior material of sliding properties, formed, for example, by fluororesin, formed.

As shown in Fig. 2, Fig. 3 and Fig. 5, the fixed part of rotary manipulation portion that is intermediate member 25, be configured to be configured the first rotary part 21 and second rotary part 22 clampings of swivel plate 20.

By configure intermediate member 25 between the first rotary part 21 and the second rotary part 22, this intermediate member 25 is played a role as spacer, thereby can between the first rotary part 21 and the second rotary part 22, guarantee for inserting the space (inner space of swivel plate 20) of the elongate members such as siphunculus.

This intermediate member 25 is fixed in the mode that cannot rotate with respect to handle body 10, therefore, even if make swivel plate 20 (the first rotary part 21 and the second rotary part 22) with respect to handle body 10 rotations, also can not rotate linkedly therewith.

At this, as the constituent material of intermediate member 25, can list the synthetic resin such as fluororesin, polyolefin or polyformaldehyde.

As shown in Fig. 3～Fig. 5, forming the intermediate member 25 of rotary manipulation portion, be formed with the guiding groove 251 and the guiding groove 252 that for making to insert the pipe 70 of the inside of handle body 10, along the central shaft (Z) of this handle body 10, extend.

Be formed at guiding groove 251 and the guiding groove 252 of intermediate member 25, the U-shaped groove extending by the length direction along handle body 10 forms, the bottom surface 251S of the guiding groove 251 shown in Fig. 3 and the bottom surface 252S of guiding groove 252, be positioned at respect to central shaft (Z) and leave downwards on the same straight line of position of the distance suitable with 1/2 of the external diameter of pipe 70.

On the other hand, at the adjusting pin 30 that forms handle 100, be formed with the pipe 70 that can extend for the central shaft (Z) along handle body 10 and insert logical through hole 35.

That is, the through hole 35 of adjusting pin 30 forms along central shaft (Z).

As shown in Figure 3, to be supported in the state configuration pipe 70 of guiding groove 251 and guiding groove 252, and make this pipe 70 be inserted through the through hole 35 forming at adjusting pin 30, thus the bearing of trend of confinement tube 70, thus, can make this pipe 70 extend along central shaft (Z).

In addition, intermediate member 25 and adjusting pin 30 are all fixed in the mode that cannot rotate with respect to handle body 10, therefore, even swivel plate 20 is rotated to operation, guiding groove 251, guiding groove 252 and through hole 35 can not change with respect to the relative position of handle body 10 and by the bearing of trend (along the direction of central shaft (Z)) of the pipe 70 of their restrictions yet.

As shown in Figure 3, the inner surface 21S that the bottom surface 251S of guiding groove 251 and the bottom surface 252S of guiding groove 252 are positioned at respect to the first rotary part 21 leans on central shaft (Z) side.

And the through hole 35 that is formed at adjusting pin 30 is positioned at respect to the inner surface 21S of the first rotary part 21 and the inner surface 22S of the second rotary part 22 and leans on central shaft (Z) side.That is, the aperture of through hole 35 is set as less than the separating distance of inner surface 21S and inner surface 22S.

Thus, be supported in guiding groove 251 and guiding groove 252, and insert logical pipe 70 at the through hole 35 that is formed at adjusting pin 30, become from the inner surface 21S of the first rotary part 21 and the equal separated state of the inner surface 22S of the second rotary part 22.

Its result, when the rotary manipulation of swivel plate 20 (the first rotary part 21 and the second rotary part 22), can prevent from reliably being contacted and the generation of abnormal sound and the damage of pipe (scratch) that cause by the inner surface of movable rotary part and the outer peripheral face of pipe.

In the situation that more than being formed at the separating distance of the inner surface that the aperture of the through hole of adjusting pin is rotary part, because this pipe of rigidity of the pipe (elongate members) that is inserted through produces deflection or lax, may contact with the inner surface of movable rotary part thus, thereby when the rotary manipulation of swivel plate 20, produce abnormal sound or pipe is impaired.

Like this, the through hole 35 that is formed at adjusting pin 30 is not only guaranteed the slotting path of the pipe 70 (elongate members) that extends along central shaft (Z), also as so that the supporting mass that the mode that pipe 70 does not contact with the inner surface of rotary part supports pipe 70 and playing a role.

As elongate members that is pipe 70, do not limit especially, for example, can exemplify the supply pipe of the normal saline in the conduit that possesses filling mechanism, the protecting tube of wire etc.

In addition, elongate members that is pipe 70 can be also catheter shaft 200 (multi-lumen tube), protecting pipe etc.

As shown in Fig. 2～Fig. 5, at intermediate member 25, as the part beyond guiding groove 251,252, be formed with the periphery wall 253 of rotary manipulation portion, this periphery wall 253 has the shape consistent with the peripheral shape of swivel plate 20 (roughly circular).

That is, intermediate member 25 is configured to, and forms the periphery wall 253 of guiding groove 251, guiding groove 252 and rotary manipulation portion.

As shown in Figure 4, the periphery wall 253 of rotary manipulation portion has the shape consistent with the peripheral shape of swivel plate 20, that is roughly circular (part is circular), with the external diameter practically identical with swivel plate 20 (the first rotary part 21 and the second rotary part 22).

According to the periphery wall 253 that is formed at the rotary manipulation portion of intermediate member 25, can prevent swivel plate 20 to be rotated the stretching out of behaviour's position in when operation.

In addition, the periphery wall 253 of rotary manipulation portion (intermediate member 25) is fixing with respect to handle body 10, even if so make swivel plate 20 rotations, can not rotate linkedly with it, therefore can not operate because this periphery wall 253 hinders the front end deflection of being undertaken by behaviour's position yet.

In addition, the periphery wall 253 of the guiding groove that the bearing of trend of pipe 70 is limited (guiding groove 251 and guiding groove 252) and rotary manipulation portion, as the component part of intermediate member 25 and be formed integratedly, so the periphery wall 253 of rotary manipulation portion can not interfered the pipe 70 that has been limited bearing of trend by guiding groove.

In addition, as shown in Figure 7, in the situation that the component part using the periphery wall of rotating part operating portion as swivel plate and forming, by swivel plate is rotated, causes periphery wall to produce and interfere with the elongate members of extending along central shaft.

According to the handle 100 of present embodiment, can make to insert from front the pipe 70 (elongate members) of the inside of handle body 10, along the central shaft (Z) of the length direction of this handle body 10, extend.

And, make to be formed at the guiding groove 251 of intermediate member 25, 252 bottom surface 251S, 252S is positioned at than the inner surface 21S of the first rotary part 21 more by central shaft (Z) side, and the aperture that is formed at the through hole 35 of adjusting pin 30 along central shaft (Z) is set as less than the separating distance of the inner surface 22S of the inner surface 21S of the first rotary part 21 and the second rotary part 22, thereby can make pipe 70 not contact with inner surface 21S and inner surface 22S, and extend along the central shaft (Z) of handle body 10, thus, the generation of the abnormal sound in the time of can avoiding operating, the problem of the damage of elongate members (scratch).

Above, embodiments of the present invention are illustrated, but catheter handle of the present invention is not limited thereto, can also carries out various changes.

For example, " elongate members " of extending for the central shaft of the length direction along handle body, except pipe, also comprises the wires such as electrode etc.

In addition, in the above-described embodiment, recorded the example that catheter handle of the present invention is applied to electrode catheter, but catheter handle of the present invention also can be applied to guiding catheter (guide catheter), conduit, sheath pipe (sheath guide) or microtubular etc. for angiography.

Description of reference numerals:

100... handle; 10... handle body; 11... first in command's parts; 12... second in command's parts; 20... swivel plate; 21... the first rotary part; 22... the second rotary part; 23... button; 25... intermediate member; 251... guiding groove; 252... guiding groove; 253... the periphery wall of rotary manipulation portion; 30... adjusting pin; 31... base portion; 32... trunk; 33... external thread part; 43... internal thread part; 40... adjustment knob; 50...O type ring; 55... packing ring; 70... pipe; 200... catheter shaft; 201... front termination electrode; 202... ring electrode.

Claims

1. a catheter handle, it is installed on the base end side of catheter shaft,

Described catheter handle is characterised in that,

Possess:

Rotary manipulation portion, it is disposed between described first in command's parts and described second in command's parts, and the mode with respect to described handle body with rotating shaft rotation that can be vertical around the length direction with this handle body is mounted, and there is swivel plate, at this swivel plate, link the cardinal extremity of the behaviour's position that is useful on the front end deflection that makes described catheter shaft;

Adjusting pin, its mode being configured to cannot rotate with respect to described first in command's parts is fixed, and connects this swivel plate along the rotating shaft of described swivel plate, and has external thread part at the front end of this adjusting pin;

Adjustment knob, it has the internal thread part that the external thread part with described adjusting pin screws togather, and is mounted in the mode that can rotate with respect to described second in command's parts; And

Elastomeric element, it is disposed between described handle body and described swivel plate, with the degree of depth that screws togather according to the internal thread part of the external thread part of described adjusting pin and described adjustment knob, the operating physical force of described swivel plate is changed,

Described rotary manipulation portion possesses:

Described swivel plate, it combines the first discoideus rotary part and the second rotary part that mutually form same footpath; And

Intermediate member, it is disposed between described the first rotary part and described the second rotary part, and is fixed in the mode that cannot rotate with respect to described handle body,

At described intermediate member, formed:

For making, from front, insert the guiding road that the elongate members of the inside of described handle body is extended along the central shaft of the length direction of this handle body; And

The periphery wall with the described rotary manipulation portion of the shape consistent with the peripheral shape of described swivel plate,

At described adjusting pin, be formed with and can insert logical through hole for the elongate members of extending along described central shaft.

2. catheter handle according to claim 1, is characterized in that,

So that the elongate members of extending along the central shaft of the length direction of described handle body and described the first rotary part and described the second rotary part the two all discontiguous mode be formed with described guiding road.

3. catheter handle according to claim 1 and 2, is characterized in that,

So that the elongate members of extending along the central shaft of the length direction of described handle body and described the first rotary part and described the second rotary part the two all discontiguous mode be formed with the through hole of described adjusting pin.

4. according to the catheter handle described in any one in claim 1～3, it is characterized in that,

The guiding road of described intermediate member is to be formed at the front of this intermediate member and the guiding groove of base end side.

5. according to the catheter handle described in any one in claim 1～4, it is characterized in that,

Described elongate members is pipe.

6. catheter handle according to claim 5, is characterized in that,

Described pipe is the supply pipe of normal saline.

7. catheter handle according to claim 5, is characterized in that,

The protecting pipe of described pipe for carrying out front end deflection operation.

8. catheter handle according to claim 5, is characterized in that,

Described pipe is catheter shaft.