CN110215593A - A kind of anchorage shoe of adjustable bending sheath tube - Google Patents
A kind of anchorage shoe of adjustable bending sheath tube Download PDFInfo
- Publication number
- CN110215593A CN110215593A CN201910658149.1A CN201910658149A CN110215593A CN 110215593 A CN110215593 A CN 110215593A CN 201910658149 A CN201910658149 A CN 201910658149A CN 110215593 A CN110215593 A CN 110215593A
- Authority
- CN
- China
- Prior art keywords
- bracing wire
- pull ring
- sheath tube
- adjustable bending
- wall
- Prior art date
- 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.)
- Pending
Links
- 238000005452 bending Methods 0.000 title claims abstract description 33
- 238000000338 in vitro Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims description 21
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 16
- 235000012771 pancakes Nutrition 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 9
- 229910000679 solder Inorganic materials 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001080 W alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- A61M2025/015—Details of the distal fixation of the movable mechanical means
Abstract
This application involves a kind of anchorage shoes of adjustable bending sheath tube, including pull ring and bracing wire, the pull ring is arranged on the distal end of adjustable bending sheath tube, and it is fixedly connected with the adjustable bending sheath tube, bracing wire holding tank is provided on the tube wall of the pull ring, the distal end of the bracing wire is placed and is fixed in the bracing wire holding tank, and the proximal end of the bracing wire is extended in vitro.The problems such as anchorage shoe avoids the concentration of stress existing for direct welding manner, and solder joint is easy to fall off, easy fracture, improves Product Safety.
Description
Technical field
The application belongs to medical instruments field, and in particular to a kind of anchorage shoe of adjustable bending sheath tube.
Background technique
In interventional therapy, conduit is most common treatment consumptive material, and due to organization of human body complexity, conduit is after entering human body
Disease could preferably be treated by needing to meet certain bending angle.Current technology means are to realize that conduit is remote by bracing wire
The bending of end part, cardinal principle are: the distal end of bracing wire is directly anchored on pull ring by welding, the proximal end of bracing wire and control
System connection pulls bracing wire by control system, transfers force in bracing wire, bracing wire passes through in the upward relative motion of catheter shaft
Solder joint, which transmits the force to, to be arranged in supravasal pull ring, so that the stretch section of distal catheter portion be driven to be bent, realizes conduit
Bending.
When the distal portions of conduit are designed using adjustable bending, the reliability that pull ring is fixedly connected with bracing wire determines product
Success or failure.Since catheter proximal end needs alternating bending, that is to say, that the place of bracing wire and pull ring fixation is repeatedly curved with conduit
Song constantly changes the force-bearing situation of stress point, this just needs the bearing of bracing wire and conduit to need resistance to certain fatigue strength.Mesh
Last stage, bracing wire and the most common fixed form of pull ring are welding, and in addition there are use the fixed forms such as splicing, hot melt cladding.
By the way of welding, solder joint is small, and welding process requirement is higher, and easily forms stress at solder joint and concentrate, when tractive force is larger or
When conduit is through alternating bending, solder joint position is easy fatigue fracture, so as to cause it is vulnerable at solder joint the problems such as；There are stress for splicing
The problems such as concentration, glue are easily detached from, and bonding strength is inadequate；That there are bonding strengths is inadequate for hot melt cladding, and bracing wire is easily detached from, when serious
The problems such as destroying guide-tube structure.
103706017 B of Chinese patent CN discloses a kind of adjustable bending sheath tube, including tube body, traction mechanism and fixed company
Connection mechanism；Traction mechanism includes anchor ring and traction fiber；Anchor ring is coaxially embedded in distal spring section of tube body；Traction fiber
In the side wall of tube body, and along the axially extending of tube body, traction fiber includes first segment and second segment interconnected, first segment
It is connect in the near proximal ends of tube body with mechanism is fixedly connected with, second segment catches on anchor ring.Because traction fiber catches on anchor ring, anchor ring
Stress point between traction fiber is to catch on part, this, which is in when adjusting curved, is broken traction fiber vulnerable to shearing force.Together
When, since traction fiber is outside anchor ring, additionally increases and adjust the diameter of curved sheath here.
Summary of the invention
The purpose of the present invention is overcome existing technical restriction, tie point present in the product for prior art
Welding stress is concentrated, bonding strength is low, bracing wire easily cut off around fixed point, adjustable bending sheath tube distal diameter increase etc. is asked
Topic, devises a kind of anchorage shoe of adjustable bending sheath tube.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of anchorage shoe of adjustable bending sheath tube, including pull ring and bracing wire, the pull ring are arranged on adjustable bending sheath tube
Distally, and with the adjustable bending sheath tube it is fixedly connected, bracing wire holding tank is provided on the tube wall of the pull ring, the bracing wire
Distal end is placed and is fixed in the bracing wire holding tank, and the proximal end of the bracing wire is extended in vitro.
The purpose of the present invention can also further realize by the following technical programs:
In one embodiment, the bracing wire holding tank is divided into two parts, and first part is longitudinally to set along the pull ring inner wall
The straight groove set, is only capable of holding two bracing wires side by side, and second part is to be arranged along the pull ring inner wall circumferencial direction
Annular groove is only capable of holding a bracing wire.The distal end of the bracing wire enters from the straight groove, along the annular groove
The straight groove is terminated at after a circle, the proximal end of the bracing wire is extended in vitro, and the main part of the bracing wire is placed in
In bracing wire channel, the bracing wire channel is cylindrical in shape structure, and internal diameter is slightly larger than the outer diameter of bracing wire, i.e. bracing wire can be contained in the bracing wire
In channel.The bracing wire and the gap section of the annular groove and the straight groove are filled and led up with glue or scolding tin, the glue or
The outer surface of scolding tin is concordant with the inner wall of the pull ring.
In one embodiment, the bracing wire holding tank is divided into two parts, and first part is vertical along the pull ring outer wall
To the straight groove of setting, it is only capable of holding two bracing wires side by side, second part is to set along the pull ring outer wall circumferencial direction
The annular groove set is only capable of holding a bracing wire.The distal end of the bracing wire enters from the straight groove, along the annular
Groove terminates at the straight groove after a circle, and the proximal end of the bracing wire is extended in vitro, the main part of the bracing wire
It is placed in bracing wire channel, the bracing wire channel is cylindrical in shape structure, and internal diameter is slightly larger than the outer diameter of bracing wire, i.e. bracing wire can be contained in this
In bracing wire channel.The bracing wire and the gap section of the annular groove and the straight groove are filled and led up with glue or scolding tin, described
The outer surface of glue or scolding tin is concordant with the outer wall of the pull ring.
In one embodiment, the pull ring is made of pull ring seat and Pull ring cover, is provided with ring on the Pull ring cover
Shape protrusion and rectangle protrusion, be provided on the pull ring seat annular groove to match with the shape of the annular protrusion and
The straight groove to match with the shape of the rectangle protrusion, the Pull ring cover pass through annular protrusion and rectangle protrusion for institute
The distal end for stating bracing wire is fixed in the annular groove and straight groove being arranged on the pull ring seat.
In one embodiment, in the hole that is internally provided with of the pull ring wall, the aperture of the hole along longitudinal direction by
Cumulative big, when the bracing wire enters in the hole from the direction of small-bore, the bracing wire is poly- in the large aperture side in the hole
Cheng Yituan, the gap between the hole and the bracing wire is filled and led up with glue or soldering, to form a fixed connection.
In one embodiment, the bracing wire holding tank is stepped distribution along the outer wall of the pull ring, the drawing
Line is embedded in the pull ring, the gap section use of the bracing wire and the bracing wire holding tank along the step-like bracing wire holding tank
Glue or scolding tin are filled and led up, and the outer surface of the glue or the scolding tin is concordant with the outer wall of the pull ring.
In one embodiment, the diameter of the pull ring is 0.15~4.0mm, the wall thickness of the pull ring is 0.06~
0.3mm。
In one embodiment, the pull ring is by the heavy metals such as stainless steel, platinum, gold, tungsten, tantalum or its alloy system
At.
In one embodiment, the bracing wire selects diameter for the round or pancake metal of 0.05~0.25mm
Silk.The materials such as the wire selection stainless steel wire, tungsten alloy steel wire, cochrome steel wire or Nitinol steel wire.
Compared with the existing technology, the present invention has the advantages that
1, main innovation of the invention point is that pull ring uses bracing wire and accommodates slot structure, by empty in bracing wire and bracing wire holding tank
Bracing wire and pull ring are fixed indirectly with the mode that glue or scolding tin are filled and led up at gap, avoid the concentration of stress existing for direct welding manner,
The problems such as solder joint is easy to fall off, easy fracture, improves Product Safety.
2, main innovation of the invention point is frictional force when taking full advantage of bracing wire and the contact of bracing wire holding tank, this power
Play the role of fixed bracing wire and pull ring to a certain extent, in addition, being fixed using welding or by the way of with glue filling and leading up gap, has
Dual fixed function, compared to common welding manner, pull ring and being fixedly connected for bracing wire are more reliable, improve Product Safety.
3, main innovation of the invention point is to take full advantage of the wall thickness space of pull ring, and bracing wire is embedded in the bracing wire of pull ring
In holding tank, pull ring and bracing wire are secured in the case where not increasing additional size, tube wall thickness are had no significant effect, no
It will increase the outer diameter of delivery conduit, reduce surgical wound, reduce operation risk.
Detailed description of the invention
Fig. 1 is the overall structure diagram of anchorage shoe of the invention.
Fig. 2 is the structural schematic diagram of the pull ring in the first embodiment of anchorage shoe of the invention.
Fig. 3 is the cross-sectional view of the pull ring in the first embodiment of anchorage shoe of the invention.
Fig. 4 is the structural schematic diagram of the pull ring in the second embodiment of anchorage shoe of the invention.
Fig. 5 is the cross-sectional view of the pull ring in the second embodiment of anchorage shoe of the invention.
Fig. 6 is the structural schematic diagram of the pull ring seat in the 3rd embodiment of anchorage shoe of the invention.
Fig. 7 is the structural schematic diagram of the Pull ring cover in the 3rd embodiment of anchorage shoe of the invention.
Fig. 8 is the structural schematic diagram of the pull ring in the fourth embodiment of anchorage shoe of the invention.
Fig. 9 is the structural schematic diagram of the pull ring in the 5th embodiment of anchorage shoe of the invention.
Figure 10 is that the bracing wire distal end and pull ring coupling part in the 5th embodiment of anchorage shoe of the invention show
It is intended to.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
The present invention is further described.
Embodiment one
Present invention is mainly applied to adjust curved sheath field, it is related to a kind of anchorage shoe of novel adjustable bending sheath tube.Such as Fig. 1 institute
Showing, the anchorage shoe includes pull ring 100 and bracing wire 120, and the pull ring 100 is arranged on the distal end of adjustable bending sheath tube,
And be fixedly connected with the adjustable bending sheath tube, bracing wire holding tank, the bracing wire 120 are provided on the tube wall of the pull ring 100
Distal end 121 be placed and be fixed in the bracing wire holding tank, the proximal end 123 of the bracing wire 120 is extended in vitro.The drawing
The main part 122 of line 120 is placed in bracing wire channel 110.
As shown in Figures 2 and 3, the bracing wire holding tank is divided into two parts, and first part is vertical along 100 inner wall of pull ring
To the straight groove 102 of setting, it is only capable of holding two bracing wires 120 side by side, second part is along 100 inner wall of pull ring circle
The annular groove 101 of circumferential direction setting, is only capable of holding a bracing wire.The distal end 121 of the bracing wire 120 is from the straight groove
102 enter, and terminate at the straight groove 102, the proximal end of the bracing wire 120 after a circle along the annular groove 101
123 extend in vitro, and the main part 122 of the bracing wire 120 is placed in bracing wire channel 110, and the bracing wire channel 110 is cylindrical in shape
Structure, preferably cylinder-like structure, internal diameter are slightly larger than the outer diameter of bracing wire.The bracing wire 120 and the annular groove 101 and
The gap section of the straight groove 102 is filled and led up with glue or scolding tin, the outer surface of the glue or scolding tin and 100 inner wall of pull ring
Concordantly.
In one embodiment, the diameter of the pull ring is 0.15~4.0mm, the wall thickness of the pull ring is 0.06~
0.3mm.The pull ring is made of the heavy metals such as stainless steel, platinum, gold, tungsten, tantalum or its alloy.
In one embodiment, the bracing wire selects diameter for the round or pancake metal of 0.05~0.25mm
Silk.The materials such as the wire selection stainless steel wire, tungsten alloy steel wire, cochrome steel wire or Nitinol steel wire.
Embodiment two
As shown in Figure 1, Figure 4 and Figure 5, the present embodiment is unlike embodiment one: the bracing wire holding tank is divided into two parts, the
A part is the straight groove 102 longitudinally disposed along 100 outer wall of pull ring, is only capable of holding two bracing wires 120 side by side, the
Two parts are the annular groove 101 being arranged along the 100 outer wall circumferencial direction of pull ring, are only capable of holding a bracing wire 120.It is described
The distal end 121 of bracing wire 120 enters from the straight groove 102, terminates at after a circle along the annular groove 101 described
Straight groove 102, the proximal end 123 of the bracing wire 120 are extended in vitro, and it is logical that the main part 122 of the bracing wire 120 is placed in bracing wire
In road 110, the cylindrical structure in the bracing wire channel 110, internal diameter is slightly larger than the outer diameter of bracing wire.The bracing wire 120 with it is described
The gap section of annular groove 101 and the straight groove 102 is filled and led up with glue or scolding tin, the outer surface and institute of the glue or scolding tin
It is concordant to state 100 outer wall of pull ring.
Embodiment three
As shown in Figure 6 and Figure 7, the present embodiment is unlike embodiment one: the pull ring 100 is by pull ring seat 104 and Pull ring cover
105 compositions, are provided with annular protrusion 106 and rectangle protrusion 107 on the Pull ring cover 105, set on the pull ring seat 104
It is equipped with the annular groove 101 to match with the shape of the annular protrusion 106 and the shape phase with the rectangle protrusion 107
The straight groove 102 matched, the Pull ring cover 105 pass through annular protrusion 106 and rectangle protrusion 107 for the remote of the bracing wire 120
End 121 is fixed in the annular groove 101 and straight groove 102 being arranged on the pull ring seat 104.That is, bracing wire 120 is remote
After end 121 enters along straight groove 102,102 inner wall of straight groove is placed on along 101 inner wall surrounding one of annular groove circle
Place, Pull ring cover 105 is covered, bracing wire 120 comes out from the bottom of the rectangle protrusion 107 of Pull ring cover 105.101 He of annular groove
Gap between straight groove 102 and bracing wire 120 is filled and led up with scolding tin or glue.
Example IV
As shown in figure 8, the present embodiment is unlike embodiment one: being internally provided with a hole in 100 wall of pull ring
103, the aperture of the hole 103 along longitudinal direction is gradually increased, and is formed like the structure of skirt, when the bracing wire 120 is from small-bore
Direction enter the hole 103 in when, the bracing wire 120 bunches up in the large aperture side in the hole 103, the hole 103
Gap between the bracing wire 120 is filled and led up with glue or soldering, to form a fixed connection.
Embodiment five
As shown in Figure 9 and Figure 10, the present embodiment is unlike embodiment one: the bracing wire holding tank is along the pull ring 100
Outer wall be stepped distribution, the bracing wire holding tank is divided into two parts, and first part is longitudinally to set along 100 outer wall of pull ring
The straight groove 102 set, the quantity of the straight groove are five, respectively 102a, 102b, 102c, 102d, 102e, only
A bracing wire 120 can be held, second part is the arc groove 101 being arranged along the 100 outer wall circumferencial direction of pull ring, is only capable of
Hold a bracing wire 120.The distal end 121 of the bracing wire 120 is embedded in the pull ring along the step-like bracing wire holding tank
100, the bracing wire 120 and the gap section of the bracing wire holding tank are filled and led up with glue or scolding tin, the glue or the scolding tin it is outer
Surface is concordant with the outer wall of the pull ring.
Figure 10 is connection schematic diagram of the bracing wire in the pull ring.The distal end 121 of the bracing wire 120 is from straight groove
After 102a insertion, by arc groove 101, it is embedded in straight groove 102b, is then embedded in straight groove 102c again, it is recessed by arc
Slot 101, is then embedded in straight groove 102d again, is then embedded in straight groove 102e again, finally, the bracing wire is embedded in and terminates at
In arc groove 101.
Finally it should be noted that the foregoing is merely preferred embodiments of the invention, not to limit this
Invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in this hair
Within bright protection scope.
Claims (10)
1. a kind of anchorage shoe of adjustable bending sheath tube, including pull ring and bracing wire, which is characterized in that the pull ring is arranged on
The distal end of adjustable bending sheath tube, and be fixedly connected with the adjustable bending sheath tube, bracing wire receiving is provided on the tube wall of the pull ring
The distal end of slot, the bracing wire is placed and is fixed in the bracing wire holding tank, and the proximal end of the bracing wire is extended in vitro.
2. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that the bracing wire holding tank point
For two parts, first part is the straight groove longitudinally disposed along the pull ring inner wall, is only capable of holding two bracing wires side by side,
Second part is the annular groove being arranged along the pull ring inner wall circumferencial direction, is only capable of holding a bracing wire.
3. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that the bracing wire holding tank point
For two parts, first part is the straight groove longitudinally disposed along the pull ring outer wall, is only capable of holding two bracing wires side by side,
Second part is the annular groove being arranged along the pull ring outer wall circumferencial direction, is only capable of holding a bracing wire.
4. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that bracing wire holding tank edge
The outer wall of the pull ring be stepped distribution, the bracing wire is embedded in the pull ring along the step-like bracing wire holding tank.
5. the anchorage shoe of adjustable bending sheath tube according to claim 4, which is characterized in that the step-like bracing wire
Holding tank is divided into two parts, and first part is the multiple straight grooves longitudinally disposed along the outer wall of the pull ring, each described straight
Connected in star is only capable of holding a bracing wire, and second part is the arc groove being arranged along the outer wall circumferencial direction of the pull ring, described
Arc groove is only capable of holding a bracing wire.
6. the anchorage shoe of the adjustable bending sheath tube according to any one of claim 2 to 5, which is characterized in that described
Bracing wire and the gap section of the bracing wire holding tank are filled and led up with glue or scolding tin, the outer surface of the glue or the scolding tin and the drawing
The outer wall of ring is concordant.
7. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that the pull ring is by pull ring seat
With Pull ring cover form, be provided on the Pull ring cover annular protrusion and rectangle protrusion, be provided on the pull ring seat with
Annular groove that the shape of the annular protrusion matches and the straight groove to match with the shape of the rectangle protrusion, institute
It states described in the distal end of the bracing wire is fixed on the pull ring seat by annular protrusion and rectangle protrusion and is arranged by Pull ring cover
In annular groove and straight groove.
8. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that in the pull ring wall
Portion is provided with a hole, and the aperture of the hole along longitudinal direction is gradually increased, when the bracing wire enters the hole from the direction of small-bore
When interior, the bracing wire bunches up in the large aperture side in the hole, gap glue between the hole and the bracing wire or
Soldering is filled and led up, to form a fixed connection.
9. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that the main part of the bracing wire
It is placed in bracing wire channel, the bracing wire channel is cylindrical in shape structure, and internal diameter is slightly larger than the outer diameter of bracing wire.
10. the anchorage shoe of adjustable bending sheath tube according to claim 1, which is characterized in that the diameter of the pull ring
For 0.15~4.0mm, the wall thickness of the pull ring is 0.06~0.3mm, and the bracing wire is round or pancake wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910658149.1A CN110215593A (en) | 2019-07-20 | 2019-07-20 | A kind of anchorage shoe of adjustable bending sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910658149.1A CN110215593A (en) | 2019-07-20 | 2019-07-20 | A kind of anchorage shoe of adjustable bending sheath tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110215593A true CN110215593A (en) | 2019-09-10 |
Family
ID=67813722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910658149.1A Pending CN110215593A (en) | 2019-07-20 | 2019-07-20 | A kind of anchorage shoe of adjustable bending sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110215593A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112245760A (en) * | 2020-09-10 | 2021-01-22 | 杭州德柯医疗科技有限公司 | Interventional catheter and production process thereof |
| CN112971870A (en) * | 2019-12-17 | 2021-06-18 | 先健科技(深圳)有限公司 | Adjustable bent sheath tube |
| WO2021120853A1 (en) * | 2019-12-17 | 2021-06-24 | 先健科技(深圳)有限公司 | Sheath |
| CN115300752A (en) * | 2022-10-09 | 2022-11-08 | 苏州汇禾医疗科技有限公司 | Conveying system of cardiovascular interventional therapy instrument, sheath tube and bending adjusting method thereof |
| WO2023109629A1 (en) * | 2021-12-13 | 2023-06-22 | 先健科技(深圳)有限公司 | Traction ring, sheath, and interventional instrument |
| WO2023123954A1 (en) * | 2021-12-31 | 2023-07-06 | 杭州德晋医疗科技有限公司 | Steerable sheath, medical instrument delivery system and method for preparing steerable sheath |
| CN117442846A (en) * | 2023-12-22 | 2024-01-26 | 苏州汇禾医疗科技有限公司 | Stay wire ring |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706017A (en) * | 2013-12-27 | 2014-04-09 | 先健科技(深圳)有限公司 | Sheathing tube capable of being adjusted to be bent |
| CN104083214A (en) * | 2014-06-13 | 2014-10-08 | 先健科技(深圳)有限公司 | Bend-adjustable medical catheter and assembling method thereof |
| CN205515918U (en) * | 2016-03-09 | 2016-08-31 | 宁波琳盛高分子材料有限公司 | Novel sheath pipe |
| CN205698832U (en) * | 2016-03-09 | 2016-11-23 | 宁波琳盛高分子材料有限公司 | A kind of sheath |
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| CN206762020U (en) * | 2016-12-08 | 2017-12-19 | 先健科技(深圳)有限公司 | Adjustable bending medical catheter |
| CN210963482U (en) * | 2019-07-20 | 2020-07-10 | 康沣生物科技(上海)有限公司 | Stay wire fixing device of adjustable bent sheath tube |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112971870A (en) * | 2019-12-17 | 2021-06-18 | 先健科技(深圳)有限公司 | Adjustable bent sheath tube |
| WO2021120853A1 (en) * | 2019-12-17 | 2021-06-24 | 先健科技(深圳)有限公司 | Sheath |
| CN112245760A (en) * | 2020-09-10 | 2021-01-22 | 杭州德柯医疗科技有限公司 | Interventional catheter and production process thereof |
| CN112245760B (en) * | 2020-09-10 | 2022-09-13 | 杭州德柯医疗科技有限公司 | Interventional catheter and production process thereof |
| WO2023109629A1 (en) * | 2021-12-13 | 2023-06-22 | 先健科技(深圳)有限公司 | Traction ring, sheath, and interventional instrument |
| WO2023123954A1 (en) * | 2021-12-31 | 2023-07-06 | 杭州德晋医疗科技有限公司 | Steerable sheath, medical instrument delivery system and method for preparing steerable sheath |
| CN115300752A (en) * | 2022-10-09 | 2022-11-08 | 苏州汇禾医疗科技有限公司 | Conveying system of cardiovascular interventional therapy instrument, sheath tube and bending adjusting method thereof |
| CN117442846A (en) * | 2023-12-22 | 2024-01-26 | 苏州汇禾医疗科技有限公司 | Stay wire ring |
| CN117442846B (en) * | 2023-12-22 | 2024-03-15 | 苏州汇禾医疗科技有限公司 | Stay wire ring |
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