CN103785094B - Medical apparatus and instruments - Google Patents
Medical apparatus and instruments Download PDFInfo
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- CN103785094B CN103785094B CN201310516506.3A CN201310516506A CN103785094B CN 103785094 B CN103785094 B CN 103785094B CN 201310516506 A CN201310516506 A CN 201310516506A CN 103785094 B CN103785094 B CN 103785094B
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- wire
- seal wire
- tube
- litzendraht wire
- operation seal
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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
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a kind of medical apparatus and instruments, when the manufacture of body, can not be subjected to displacement or distortion along with the flowing of molten resin separately with 2 inner chamber forming units of 180 ° of interval configurations, during the deflecting operation of front end, the operation seal wire of pull operation can not make the tube wall of body break and reach outside it.Described medical apparatus and instruments possesses: the braided tube (10) with the flexible part in front end; The joystick be connected with the base end side of braided tube (10); Insert the operation of the inside of braided tube (10) with seal wire (41,42).Braided tube (10) has: the internal layer (11) being formed with main inner chamber (11A); At the skin (12) of the upper stratification of internal layer (11); Be embedded in the litzendraht wire (13) in skin (12); Secondary lumen tube (the inserting road of operation seal wire) (141,142) in this litzendraht wire (13) are configured at the state being incorporated into the metal wire material being formed litzendraht wire (13).
Description
Technical field
The present invention relates to and a kind of there is the medical apparatus and instruments that can carry out the body of front end deflecting operation.
Background technology
As existing conduit or sheath etc., introducing a kind of front end has flexible part, can carry out the medical catheter (with reference to patent documentation 1 and patent documentation 2) of front end deflecting operation.
Figure 12 is the drawing in side sectional elevation of the medical catheter described in patent documentation 1.
This medical catheter 80 possesses: the internal layer 81 being formed with main inner chamber 81A; The skin 82 of stratification on internal layer 81; Be embedded in the litzendraht wire 83 of the inside of outer 82; Be embedded in the secondary lumen tube 841,842 of the inside (inner side of litzendraht wire 83) of outer 82; Insert the operation seal wire 851,852 of secondary lumen tube 841,842.
Internal layer 81 and outer 82 is made up of thermoplastic resin, and litzendraht wire 83 is consisted of the metal wire material of braiding rustless steel etc.
Secondary lumen tube 841,842 is the pipe inserting the path on road for the formation of operation seal wire 851,852, is made up of thermoplastic resin.
Operation seal wire 851,852 bends for making the flexible portion of pipe front end divide, for carrying out the seal wire of the front end deflecting operation of medical catheter 80.
The medical catheter 80 with the section formation shown in Figure 12 can manufacture in the following manner.
First, make the main lumen tube of internal layer 81() be coated on tube core, by secondary lumen tube 841,842 with 180 ° of intervals in the axial direction subtend be configured at the periphery of internal layer 81.In addition, in this stage, operation seal wire 851,852 can be inserted the inside of secondary lumen tube 841,842.
Next, after the outside of secondary lumen tube 841,842 forms litzendraht wire 83, the resin material of the coated tubulose for the formation of skin 82.
Heat-shrinkable tube is coated on the duplexer (being configured with the duplexer of resin material of the internal layer 81 of secondary lumen tube 841,842, litzendraht wire 83, tubulose) of the cylindrical shape that aforesaid way obtains, to the heating of this duplexer, pressurization.Thus, resin material melting, also immerses the inner side of litzendraht wire 83 while impregnated in litzendraht wire 83.Afterwards, by being cooled by duplexer, resin material being solidified, can obtain litzendraht wire 83 and secondary lumen tube 841,842 hot sticky in the medical catheter 80 of internal layer 81.
Figure 13 is the drawing in side sectional elevation of the medical catheter described in patent documentation 2.
This medical catheter 90 possesses: the internal layer 91 being formed with main lumen tube 91A; The skin 92 of stratification on internal layer 91; Be embedded in the litzendraht wire 93 of the inside of outer 92; Be embedded in the secondary lumen tube 941,942 of the inside (outside of litzendraht wire 93) of outer 92; Insert the operation seal wire 951,952 of secondary lumen tube 941,942.
In this medical catheter 90, the secondary lumen tube 941,942 of respectively inserting road of formation operation seal wire 951,952 is configured at the outside of litzendraht wire 93.
As manufacturing the method with the medical catheter 90 that the section shown in Figure 13 is formed, list after the periphery of the internal layer 91 being coated on tube core forms litzendraht wire 93, secondary lumen tube 941,942 is configured with the subtend at 180 ° of intervals in the axial direction, and then, the resin material of the coated tubulose for the formation of skin 92, make cylindric duplexer, and, the duplexer obtained heated identically with the manufacture method of medical catheter 80, pressurize and the method cooled.
Patent documentation 1: Japanese Unexamined Patent Publication 2006-192269 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2010-167101 publication
Summary of the invention
The problem solved
(1) in the medical catheter as described in patent documentation 1 and patent documentation 2, (duplexer of cylindrical shape is heated during fabrication, pressurize and make the operation of resin material melting), be configured at the inner side of litzendraht wire or the secondary lumen tube in outside, because of the resin material of melt-flow, from the circumferential direction displacement (position slip) of allocation position inner layer, result, the angle intervals of two secondary lumen tube of subtend configuration cannot maintain 180 °, or secondary lumen tube is fixed with the state of distortion, the secondary inner chamber inserting road as operation seal wire is made (parallel with the central shaft of pipe) to be formed in the axial direction thus.
(2) in the medical catheter described in patent documentation 2, the secondary lumen tube inserted for operation seal wire becomes very thin at the wall thickness of allocation position skin (tube wall), in addition, with in the medical catheter described in document, owing to secondary lumen tube to be configured at the outside of litzendraht wire, when the front end deflecting operation of this medical catheter, there is the operation seal wire being pulled operation and make thin tube wall break and reach the situation in the outside of pipe.
For preventing the problems referred to above, consider the thickness increasing tube wall (skin), but cannot expanded outer diameter from the requirement in the thin footpath as medical catheter, from guarantee main inner chamber internal diameter viewpoint viewed from cannot reduce this internal diameter.Therefore, the thickness of tube wall cannot be increased.
The present invention completes based on above situation.
The object of this invention is to provide a kind of medical apparatus and instruments, when manufacturing the body of above-mentioned formation, the forming unit of inserting road (inner chamber) of operation seal wire, (dislocation) or distortion can not be subjected to displacement along with the flowing of molten resin, the central shaft of the inner chamber and body of inserting road as operation seal wire can be made to be formed abreast.
The object of this invention is to provide a kind of medical apparatus and instruments, when manufacturing the body of above-mentioned formation, separately can not along with the flowing displacement of molten resin or distortion with 2 inner chamber forming units of the interval of 180 ° configuration, in the mode of the central shaft across body, 2 inner chambers inserting road as operation seal wire can be formed abreast with this central shaft.
Further other object of the present invention is to provide a kind of medical apparatus and instruments, and when front end deflecting operation, the operation seal wire that pull operation can not occur makes the tube wall of body break to reach the phenomenon in outside.
The mode of dealing with problems
(1) medical apparatus and instruments of the present invention has: the body possessing the litzendraht wire with the flexible part in front end; Be connected to the joystick of the base end side of described body; And at least 1 operation seal wire, divide to make described front end flexible portion and the inside that flexure is inserted into described body occurs, and pull operation can be carried out to the rear end of this operation seal wire, in described body, the inner chamber inserting road as described operation seal wire is formed in described litzendraht wire.
According to the medical apparatus and instruments that aforesaid way is formed, when manufacturing the body forming this medical apparatus and instruments, owing to being held in litzendraht wire with suitable state (position/shape) using the forming unit of inserting the inner chamber on road as operation seal wire, the resin material that therefore inner chamber forming unit also can not flow due to melting is subjected to displacement or distortion.Thereby, it is possible to the formation parallel with the central shaft of body is as the inner chamber inserting road of operation seal wire.At this, inserting in the forming unit of the inner chamber on road as operation seal wire, except the secondary lumen tube forming body, also comprising the bar (wire rod) etc. forming inner chamber.
In addition, by making the inner chamber inserting road as operation seal wire be formed in litzendraht wire, operation seal wire is made to insert in litzendraht wire, thereby, it is possible to positively prevent this operation seal wire from making the tube wall of body break and reach outside it.
(2) in medical apparatus and instruments of the present invention, preferably, in described body, the lumen tube of inserting road forming described operation seal wire is configured in described litzendraht wire with the state of enrolling the line material being formed described litzendraht wire.
According to the medical apparatus and instruments that aforesaid way is formed, when manufacturing the body forming described medical apparatus and instruments, by the lumen tube of inserting road of formation operation seal wire being enrolled the line material forming litzendraht wire, owing to being held in this litzendraht wire with suitable state (position/shape), the resin material that therefore this lumen tube also can not flow due to melting is subjected to displacement or distortion.Thereby, it is possible to the formation parallel with the central shaft of body is as the inner chamber inserting road of operation seal wire.
In addition, by being configured in litzendraht wire by the lumen tube of inserting road of formation operation seal wire, owing to being inserted in litzendraht wire by operation seal wire, can positively prevent this operation seal wire from making the tube wall of body break and reach outside it.
(3) in medical apparatus and instruments of the present invention, preferably there are 2 operation seal wires, described operation seal wire bends towards both direction to make the flexible part in described front end, the inside of this body is inserted in the mode of the central shaft across described body, and pull operation can be carried out to described operation seal wire rear end separately
In described body, the lumen tube of respectively inserting road forming described operation seal wire be incorporated into formed described litzendraht wire line material in state be configured in this litzendraht wire.
According to the medical apparatus and instruments that aforesaid way is formed, when manufacturing the body forming above-mentioned medical apparatus and instruments, 2 lumen tube of inserting road of 2 operation seal wires will be formed respectively, enroll in the line material forming litzendraht wire, thus, due to suitable state (position/shape/180 ° configuration space) can be kept in this litzendraht wire, 2 lumen tube separately can not due to melting and the resin material of flowing be subjected to displacement or distortion.Thereby, it is possible to form 2 inner chambers inserting road as operation seal wire abreast using the mode of the central shaft clamping body (180 ° of intervals) and this central shaft, the flatness of the change of shape of the flexible part in front end can be guaranteed fully.
(4) in medical apparatus and instruments of the present invention, preferably, described body has: the internal layer being formed with main inner chamber; The skin of stratification on described internal layer; Be embedded in the litzendraht wire in described skin; Be configured at the lumen tube of inserting road of the described operation seal wire of formation in described litzendraht wire.
According to the medical apparatus and instruments that aforesaid way is formed, manufacture form the body of this medical apparatus and instruments time, main inner chamber can be formed by internal layer, and the inner chamber (secondary inner chamber) inserting road as operation seal wire can be formed abreast with the central shaft of pipe.
In addition, can positively prevent operation seal wire from making the tube wall of body (skin) break and reach outside it.
According to medical apparatus and instruments of the present invention, manufacture form the body of described medical apparatus and instruments time, formation that can be parallel with the central shaft of body is as the inner chamber inserting road of operation seal wire.
In addition, during the deflecting operation of front end, can positively prevent operation seal wire from making the tube wall of body break and reach outside it.In addition, the thin-walled property of tube wall can be realized thus.
And then, make the flexible part in front end towards the medical apparatus and instruments of both direction flexural mode according to by 2 operation seal wires, when manufacturing the body forming described medical apparatus and instruments, can with the mode of the central shaft across body (180 ° of intervals), the formation parallel with this central shaft, as the 2 each inner chambers inserting road of operation seal wire, can guarantee the flatness of the change of shape of the flexible part in front end fully.
Accompanying drawing explanation
Fig. 1 is the top view of the medical apparatus and instruments (conduit gatherer) illustrated involved by an embodiment of the invention.
Fig. 2 is the axonometric chart (comprising the axonometric chart of the IV-IV section of Fig. 1) of a part for the braided tube that the conduit gatherer shown in pie graph 1 is shown.
Fig. 3 is the top view of a part for the braided tube that the conduit gatherer shown in pie graph 1 is shown.
Fig. 4 is the drawing in side sectional elevation (the IV-IV profile of Fig. 1) of the braided tube of the conduit gatherer shown in pie graph 1.
Fig. 5 is a part for the braided tube representing the conduit gatherer shown in pie graph 1, removes the axonometric chart of an outer field part.
Fig. 6 be the braided tube representing the conduit gatherer shown in pie graph 1 a part, remove the top view of an outer field part.
Fig. 7 is the profilograph of a part for the braided tube representing the conduit gatherer shown in pie graph 1.
Fig. 8 is the partial magnified sectional view (the VIII portion details drawing of Fig. 7) of Fig. 7.
Fig. 9 is for forming the drawing in side sectional elevation of the braided tube of the medical apparatus and instruments (conduit gatherer) involved by variation of the present invention.
Figure 10 is for forming the drawing in side sectional elevation of the braided tube of the medical apparatus and instruments (conduit gatherer) involved by variation of the present invention.
Figure 11 is for forming the drawing in side sectional elevation of the braided tube of the medical apparatus and instruments involved by variation of the present invention.
Figure 12 is the drawing in side sectional elevation of existing medical catheter.
Figure 13 is the drawing in side sectional elevation of existing medical catheter.
The explanation of Reference numeral
100 conduit gatherers (medical apparatus and instruments), 10 braided tube, the flexible part in 10A front end, the main inner chamber of 11A, 11 internal layers, 12 outer, 13 litzendraht wires, 141,142 secondary lumen tube, 20 joysticks, 21 handle main body (holding portion), 22 swivel plates (rotation process portion), 23 haemostatic valve, 24 distortion moderator, 25 arms (side arm), 26 threeway plug valves, 41,42 operation seal wires, 43,44 operation seal wires, 143,144 secondary lumen tube, 161 ~ 164 lumen tube, 17 skins
Detailed description of the invention
Below, accompanying drawing is utilized to be described embodiments of the present invention.
The conduit gatherer that the medical apparatus and instruments of present embodiment uses when being and being inserted in patient body by the rectangular medical apparatus such as conduit.
The conduit gatherer 100 of the present embodiment shown in Fig. 1 possesses: the braided tube 10(with the flexible part 10A in front end can handle sheath: steerablesheath); Be connected to the joystick 20 of the base end side of this braided tube 10; Be connected with joystick 20, there is the arm (side arm) 25 of the endoporus be communicated with the inner chamber of braided tube 10 (main inner chamber); Be installed on the threeway plug valve 26 of this arm 25.
The front end area of braided tube 10 is the flexible part 10A in front end.At this, so-called " the flexible part in front end " is by carrying out to rotation process portion the fore-end that operation can bend the pipe of (bending).
At this, the length of braided tube 10 is generally 500 ~ 800mm, and the length of the flexible part 10A in front end is such as 20 ~ 150mm.
In order to be bent towards both direction by flexible for the front end of braided tube 10 part 10A, in the inside of this braided tube 10, in the mode across its central shaft, be inserted with 2 operation seal wires that can carry out pull operation to respective rear end.
The joystick 20 forming conduit gatherer 100 possesses: handle main body 21(holds portion); Be positioned at the swivel plate 22(rotation process portion of the front of this handle main body 21); Be arranged at the haemostatic valve 23 of the base end side of handle main body 21; Be positioned at the distortion moderator 24 of the front of swivel plate 22.
This joystick of cardinal extremity partial insertion 20(handle main body 21 by braided tube 10) inside, the cardinal extremity of braided tube 10 is connected with haemostatic valve 23.
By operating the swivel plate 22 of joystick 20, the flexible part 10A flexure in front end of braided tube 10, result, can make the front end of braided tube 10 deflect.
As shown in Fig. 2 to Fig. 8, braided tube 10 has: the internal layer 11 being formed with main inner chamber 11A; The skin 12 of stratification on the periphery of internal layer 11; Be embedded in the litzendraht wire 13 of the inside of outer 12; In the inside of outer 12, to enroll the state of the metal wire material being formed litzendraht wire 13, be configured at the secondary lumen tube 141,142 in this litzendraht wire 13.
In addition, although not shown in Fig. 2, Fig. 3, Fig. 5 ~ Fig. 7, the front opening of braided tube 10.
The internal layer 11 forming braided tube 10 is the pitch tube forming main inner chamber 11A.As the resin forming internal layer 11, polytetrafluoroethylene (PTFE), Kynoar and polyether-ether-ketone (PEEK), PFA, perfluoroethylene-propylene (FEP), polyethylene (PE), polypropylene (PP), polyamide (PA), polyamide elastomer (PAE) etc. preferably can be enumerated.
The internal diameter of internal layer 11 is generally 1.6 ~ 4.3mm, preferably 2.0 ~ 3.0mm, if represent, a preferred example is 2.8mm.
The thickness of internal layer 11 is generally 0.01 ~ 0.2mm, preferably 0.03 ~ 0.1mm, if represent, a preferred example is 0.05mm.
Stratification on the periphery of internal layer 11 and form the skin 12 of braided tube 10, forms the shape of braided tube 10, and is embedded with the litzendraht wire 13 of the state of having enrolled secondary lumen tube 141,142, for for the hot sticky resin bed in internal layer 11.
As the resin forming outer 12, select from the thermoplastic resin lower than the melting point resin forming internal layer 11 and secondary lumen tube 141,142, such as polyolefin, polyamide, polyether-polyamide and polyurethane etc. can be enumerated, preferred, polyethers block amide copolymer in above-mentioned resin " Pebax(registered trade mark) ".
The thickness of outer 12 is generally 0.2 ~ 1.5mm, preferably 0.3 ~ 0.8mm, if represent, a preferred example is 0.5mm.
The external diameter (external diameter of braided tube 10) of outer 12 is generally 2.0 ~ 5.0mm, preferably 2.6 ~ 4.3mm, if represent, a preferred example is 3.8mm.
In the inside of outer 12, almost throughout the litzendraht wire 13 being embedded with the metal wire material formation by enrolling rustless steel etc. endlong of pipe, thus, form braided tube (plate pipe: bladetube).
At this, the external diameter (line material footpath) forming the metal wire material of litzendraht wire 13 is generally 0.02 ~ 0.1mm, if represent, a preferred example is 0.05mm.
In addition, the number of imbedding of litzendraht wire 13 is 4 ~ 64, if represent, a preferred example is 16.
In addition, the formation number of litzendraht wire 13 is 1 ~ 4, if represent, a preferred example is 2.
In addition, the spacing of line material 13 is 2 ~ 8mm, if represent, a preferred example is 3mm.
Be embedded in the litzendraht wire 13 of the inside of outer 12, to enroll the state of the metal wire material being formed litzendraht wire 13, secondary lumen tube 141 and secondary lumen tube 142 configured with the mode of the central shaft across braided tube 10 (180 ° of intervals) subtend.
Secondary lumen tube 141,142 be formation operation seal wire 41,42 respective pitch tubes inserting road (secondary inner chamber), as the resin forming secondary lumen tube 141,142, can enumerate preferably as the illustrative resin of formation internal layer 11.
Secondary lumen tube 141,142 is not configured at " inner side " and " outside " of litzendraht wire 13, to be incorporated into the state of the metal wire material being formed litzendraht wire 13, is configured at " middle part " of this litzendraht wire 13.
Thus, even if there is not outer 12(to form the stage before outer 12 in the manufacture process of litzendraht wire 10), secondary lumen tube 141,142 is firmly fixed relative to internal layer 11 respectively thus cannot moves, and is retained as the suitable state configuration space of 180 ° (circumferential position of relative internal layer 11, the shape) in litzendraht wire 13.
The external diameter of secondary lumen tube 141,142, is generally 0.15 ~ 1.2mm, preferably 0.25 ~ 0.7mm, if represent, a preferred example is 0.35mm.
In addition, its internal diameter is generally 0.1 ~ 1.0mm, preferably 0.2 ~ 0.6mm, if represent, a preferred example is 0.3mm.
Operation seal wire 41,42 is the seal wires carrying out front end deflecting operation for making the flexible part flexure in the front end of braided tube 10.
Operation seal wire 41, the secondary inner chamber that the secondary lumen tube 141 being inserted into the inside (in litzendraht wire 13) of the skin 12 being configured at braided tube 10 is formed.
On the other hand, operation seal wire 42, the secondary inner chamber that the secondary lumen tube 142 being inserted through the inside (in litzendraht wire 13) of the skin 12 being configured at braided tube 10 is formed.
The front end of operation seal wire 41,42 is connected and fixed on the leading section of braided tube 10 respectively, and the operation cardinal extremity of seal wire 12 is connected with the swivel plate 22 of joystick 20 respectively.
The braided tube 10 forming the conduit gatherer 100 of present embodiment can be manufactured by following operation (1) ~ (5).
(1) first, by main for internal layer 11(lumen tube) be coated on tube core.
(2) following, in the periphery of internal layer 11, by secondary lumen tube 141,142 in the axial direction with the interval subtend configuration of 180 °, and limit uses metal wire material to enroll each secondary lumen tube 141,142 limit formation litzendraht wire 13.In addition, in this stage, operation seal wire 41,42 can be inserted the inside of secondary lumen tube 141,142.
(3) following, the periphery of the litzendraht wire 13 formed under the state of enrolling secondary lumen tube 141,142 respectively, the resin material of the coated tubulose for the formation of skin 12.
(4) heat-shrinkable tube is coated on the duplexer (internal layer 12, by enrolling the duplexer of the resin material of litzendraht wire 13 that secondary lumen tube 141,142 formed and tubulose respectively) of the cylindrical shape that aforesaid way obtains, and to the heating of this duplexer, pressurization.Thus, the resin material melting of tubulose is also flowed, and the resin material impregnate after melting is in litzendraht wire 13.
Now, be configured at the secondary lumen tube 141,142 in litzendraht wire 13, be incorporated into form litzendraht wire 13 metal wire in, because relative internal layer 11 is firmly fixed, can not due to flowing resin material be subjected to displacement, distortion.
(5) cool duplexer and after resin material solidification, remove from tube core, the braided tube 10 being formed with main inner chamber 11A and secondary lumen tube 141,142 can be obtained thus.
According to the conduit gatherer 100 of the medical apparatus and instruments as present embodiment, in the braided tube 10 forming conduit gatherer 100, with respectively by secondary lumen tube 141, 142 states of enrolling metal wire material are configured in litzendraht wire 13, thus, in above-mentioned operation (4) when manufacturing braided tube 10, can by secondary lumen tube 141, 142 with suitable state (relative to the position of the circumferential direction of internal layer 11, shape, the configuration space of 180 °) remain in litzendraht wire 13, secondary lumen tube 141 can not be made, 142 are respectively freed from melting, the resin material of flowing is subjected to displacement or distortion.Thus, the inner chamber (the inserting road of operation seal wire) formed by secondary lumen tube 141,142 can be formed abreast with the mode of the central shaft across braided tube 10 (intervals of 180 °) and this central shaft, as a result, the flatness of the change of shape of the flexible part 10A in front end can fully be guaranteed.
In addition, by secondary lumen tube 141,142 is configured in litzendraht wire 13 respectively, operation seal wire 41,42 is inserted in litzendraht wire 13 respectively, therefore, it is possible to positively prevent operation seal wire 41 or operation seal wire 42 from damaging the tube wall of litzendraht wire 10 and reaching outside it.
Above, be illustrated an embodiment of the invention, the present invention is not limited to this embodiment, and various distortion can occur.
Such as shown in Figure 9, the quantity of operation seal wire is 1, and become and make the flexible part in front end only can towards direction flexure (secondary lumen tube 141 of inserting road of formation operation seal wire 41, to enroll the state of the metal wire material being formed litzendraht wire 13, be configured in this litzendraht wire 13) structure be also fine.
In addition, as shown in Figure 10, the quantity of operation seal wire is 4, and become enable the flexible part in front end towards four direction (0 °, 90 °, 180 °, 270 °) flexure (the secondary lumen tube 141 ~ 144 of respectively inserting road of formation operation seal wire 41 ~ 44, to enroll the state of the metal wire material being formed litzendraht wire 13, be configured in this litzendraht wire 13) structure be also fine.
And then as shown in figure 11, the structure that multiple lumen tube (lumen tube 161 ~ 164) is formed at the inside (inner side of litzendraht wire 13) of outer 17 is also fine.
And then as the inner chamber (secondary inner chamber) inserting road and the main inner chamber of operation seal wire, can can't help lumen tube is formed, and by the extruded formation of resin or can also use the formation such as tube core or bar (wire rod).
And then in " possessing the body of litzendraht wire ", one of length direction also can exist the part not forming litzendraht wire.
Claims (3)
1. a medical apparatus and instruments, is characterized in that, has:
Body, this body possesses the litzendraht wire with the flexible part in front end;
Joystick, this joystick is connected to the base end side of described body; And
At least 1 operation seal wire, divides to make described front end flexible portion and the inside that flexure is inserted into described body occurs, and can carry out pull operation to the rear end of this operation seal wire,
In described body, the inner chamber inserting road as described operation seal wire is formed in described litzendraht wire,
In described body, the lumen tube of inserting road forming described operation seal wire be incorporated into formed described litzendraht wire line material in state be configured in this litzendraht wire.
2. medical apparatus and instruments according to claim 1, is characterized in that,
Have 2 operation seal wires, described operation seal wire bends towards both direction to make the flexible part in described front end, inserts the inside of this body in the mode of the central shaft across described body, and can carry out pull operation to described operation seal wire rear end separately,
In described body, formed the described operation seal wire lumen tube of inserting road separately be incorporated into formed described litzendraht wire line material in state be configured in this litzendraht wire.
3. medical apparatus and instruments according to claim 1 and 2, is characterized in that,
Described body has:
Be formed with the internal layer of main inner chamber;
The skin of stratification on described internal layer;
Be embedded in the litzendraht wire in described skin;
Be configured at the lumen tube of inserting road of the described operation seal wire of formation in described litzendraht wire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012237485A JP5885302B2 (en) | 2012-10-29 | 2012-10-29 | Medical equipment |
| JP2012-237485 | 2012-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103785094A CN103785094A (en) | 2014-05-14 |
| CN103785094B true CN103785094B (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310516506.3A Active CN103785094B (en) | 2012-10-29 | 2013-10-28 | Medical apparatus and instruments |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5885302B2 (en) |
| CN (1) | CN103785094B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10426920B2 (en) * | 2013-12-20 | 2019-10-01 | Boston Scientific Scimed, Inc. | Integrated catheter system |
| EP3650071B1 (en) * | 2014-09-21 | 2021-11-24 | Clph, Llc | Catheter devices and methods for making them |
| CR20170245A (en) * | 2014-12-05 | 2017-09-14 | Edwards Lifesciences Corp | DIRIGIBLE CATETER WITH TRACTION CABLE |
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| CN102264308A (en) * | 2008-12-22 | 2011-11-30 | 科迪斯公司 | Deflecting guide catheter for use in a minimally invasive medical procedure for the treatment of mitral valve regurgitation |
| CN102264428A (en) * | 2008-12-26 | 2011-11-30 | 住友电木株式会社 | Catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014087386A (en) | 2014-05-15 |
| JP5885302B2 (en) | 2016-03-15 |
| CN103785094A (en) | 2014-05-14 |
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