CN113069155A - Controllable bent dilator - Google Patents
Controllable bent dilatorDownload PDFInfo
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- CN113069155A CN113069155ACN202110331156.8ACN202110331156ACN113069155ACN 113069155 ACN113069155 ACN 113069155ACN 202110331156 ACN202110331156 ACN 202110331156ACN 113069155 ACN113069155 ACN 113069155A
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- dilator
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
- A61B17/0218—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors for minimally invasive surgery
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
- A61B17/0218—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors for minimally invasive surgery
- A61B2017/0225—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors for minimally invasive surgery flexible, e.g. fabrics, meshes, or membranes
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Abstract
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a controllable bending dilator.
Background
Arrhythmia is a disease which seriously affects the health and life quality of patients, atrial fibrillation (atrial fibrillation) is the most common arrhythmia disease, the morbidity of people reaches about 1 to 2 percent, and the atrial fibrillation has high disability rate and mortality rate, and the interventional therapy is an important treatment means for arrhythmia such as atrial fibrillation. The atrial septal puncture operation is a widely applied medical technology combining various percutaneous catheter operations for left atrial-originated arrhythmia such as atrial fibrillation, atrioventricular reentry tachycardia caused by left atrioventricular bypass, left ventricular-originated arrhythmia and the like.
In prior art, because patient's individuation difference, in order to accurately reach the oval nest position this moment, need mould the distal end, individual differentiation's demand is hardly satisfied sometimes to single curved type, and when having individuation difference, the expander of single curved type can cause the inconvenience of operation, influences the effect of operation, increases operation time, further increases the operation risk of mistake through aorta and pericardial space.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical problem that the existing single bent dilator cannot adapt to individual differences and is inconvenient to operate, so that the controllable bent dilator is provided to meet diversified clinical requirements, can quickly reach the fossa ovalis and further reduce the risk of mistaken puncturing operation.
A controlled bend dilator comprising:
the dilator tube is provided with a tube wall small cavity, the tube wall small cavity is arranged along the length direction of the dilator, and two ends of the tube wall small cavity penetrate through the tube wall of the dilator tube;
the bending control handle is used for controlling the bending of the expander and is rotatably arranged in the expander;
the bending control wire is used for changing the bending shape of the distal end of the dilator tube;
one end of the bending control wire penetrates through the other end of the small cavity of the pipe wall, and the other end of the bending control wire is connected to the bending control handle.
Furthermore, the number of the small lumens of the tube wall of the bending control wire dilator is one or two, and the bending control wires and the small lumens of the tube wall are arranged in a one-to-one correspondence manner.
Furthermore, the expander also comprises a circular truncated cone-shaped ring, the circular truncated cone-shaped ring and the expander pipe are coaxially arranged, a circular wall cavity is formed in the circular truncated cone-shaped ring, the circular wall cavity is communicated with the pipe wall small cavity, and one end, back to the bending control handle, of the bending control wire is fixed in the circular wall cavity.
Further, the expander also comprises an upper cover and a lower cover, wherein the opposite surfaces of the upper cover and the lower cover are provided with a placing groove, the expander pipe is positioned between the upper cover and the lower cover, the outer wall of the expander pipe is provided with a bending wire control guide body, the bending wire control guide body is covered by the upper cover and the lower cover, the side wall of the bending wire control guide body is provided with a guide groove, the guide groove is communicated with the small pipe wall cavity, and the bending wire control enters the small pipe wall cavity through the guide groove.
Furthermore, accuse curved handle is including setting up the first pulley in the standing groove and rotating the push rod that sets up on first pulley, upper cover and lower cover are stretched out to push rod one end, the push rod stretches out upper cover and lower cover and serves and be provided with the push-button that is used for adjusting the bending type, accuse curved silk orientation accuse curved handle one end is connected with the push rod.
Furthermore, a second pulley used for assisting the bending control wire to move is further arranged in the placing groove, the second pulley is located between the bending control wire guiding body and the first pulley, and the bending control wire is tightly abutted to the side wall of the second pulley.
Furthermore, a fixing groove convenient for the push rod to move up and down is formed in the inner side wall of the placing groove, the fixing groove penetrates through the side walls of the upper cover and the lower cover, and the push rod is located in the fixing groove and moves in the fixing groove.
Furthermore, the upper cover and the lower cover are detachably connected through a clamp.
Further, the dilator tube is made of medical high polymer material added with a developer, the medical high polymer material comprises PP, PE, FEP and Pebax, and the developer comprises barium sulfate.
Furthermore, the bending control wire is made of a high-strength metal material, the metal material comprises stainless steel, tungsten wires and nickel titanium, the circular truncated cone-shaped ring is made of a noble metal material added with a developer, the noble metal material comprises platinum-iridium alloy and platinum-nickel alloy, and the developer comprises barium sulfate.
Furthermore, the bending control handle is defined as a proximal end, the circular truncated cone-shaped ring is defined as a distal end, and when bending is controlled, the hardness of the bending control length section required by the distal end of the dilator tube is lower than that of the proximal end main body, and the hardness is distributed in two steps.
The technical scheme of the invention has the following advantages:
1. the controllable bending dilator provided by the invention comprises a dilator tube, wherein a tube wall small cavity is formed in the dilator tube, the tube wall small cavity is arranged along the length direction of the dilator, and two ends of the tube wall small cavity penetrate through the tube wall of the dilator tube; the bending control handle is used for controlling the bending of the expander and is rotatably arranged in the expander; the bending control wire is used for changing the bending shape of the distal end of the dilator tube; one end of the bending control wire penetrates through the other end of the small cavity of the tube wall, the other end of the bending control wire is connected to the bending control handle, when the dilator is used, the distal end of the dilator can be subjected to bending control molding according to individual difference requirements of ventricles to quickly reach the fossa ovalis, so that the operation time is saved, and the operation is more convenient.
2. The controllable bending expander provided by the invention has the advantages that the bending control wires and the small pipe wall cavities are respectively arranged into one or two, the bending control wires and the small pipe wall cavities are arranged in a one-to-one correspondence mode, when the bending control wires are arranged into one, the expander can be bent towards one direction, and when the bending control wires are arranged into two, the bending control handles on the expander can be bent towards two opposite directions.
3. The bend-controllable dilator provided by the invention further comprises a circular truncated cone-shaped ring, the circular truncated cone-shaped ring and the dilator tube are coaxially arranged, a circular wall cavity is formed in the circular truncated cone-shaped ring, the circular wall cavity is communicated with the small tube wall cavity, one end, back to the bend-controlling handle, of the bend-controlling wire is fixed in the circular wall cavity, the bend-controlling wire is fixed on the circular truncated cone-shaped ring through the circular truncated cone-shaped ring, the motion of the bend-controlling wire is driven through the motion of a handle push knob, the motion of the bend-controlling wire further drives the motion of the circular truncated cone-shaped ring at the far end, and therefore the change of the bending degree is presented in the bending region according to the different motion distances of the bend-controlling.
4. The bend-controllable expander further comprises an upper cover and a lower cover, wherein the opposite surfaces of the upper cover and the lower cover are provided with a placing groove, the expander pipe is positioned between the upper cover and the lower cover, the outer wall of the expander pipe is provided with a bend-controllable wire guide body, the bend-controllable wire guide body is covered by the upper cover and the lower cover, the side wall of the bend-controllable wire guide body is provided with a guide groove, the guide groove is communicated with the small pipe wall cavity, the bend-controllable wire enters the small pipe wall cavity through the guide groove, the bend-controllable wire and the bend-controllable handle can be conveniently placed through the arrangement of the upper cover and the lower cover, and meanwhile, the bend-controllable wire is guided into the small pipe wall cavity from the guide groove of the bend-controllable wire guide body through the bend-controllable wire guide body.
5. The bend-controllable dilator provided by the invention is characterized in that the bend-controllable handle comprises a first pulley arranged in the placing groove and a push rod rotatably arranged on the first pulley, one end of the push rod extends out of the upper cover and the lower cover, a push button for adjusting the bend shape is arranged at one end of the push rod extending out of the upper cover and the lower cover, a bend-controllable wire is connected with the push rod towards one end of the bend-controllable handle, when bend control is needed, the push button is manually pushed to drive the push rod to move, the push rod rotates by taking the first pulley as the center of a circle, and the push rod drives the bend-controllable wire to move at the moment, so that the autonomy in the interatrial puncture surgery is improved, and the individualized differences in different surgeries are adapted.
6. According to the bend-controllable expander provided by the invention, the second pulley for assisting the movement of the bend-controllable wire is further arranged in the placing groove, the second pulley is positioned between the bend-controllable wire guide body and the first pulley, the bend-controllable wire is tightly propped against the side wall of the second pulley, and the movement of the bend-controllable wire can be assisted through the arrangement of the second pulley, so that the bend-controllable handle is more convenient in the process of driving the bend-controllable wire to move.
7. According to the controllable bent expander provided by the invention, the inner side wall of the placing groove is provided with the fixing groove which is convenient for the push rod to move up and down, the fixing groove penetrates through the side walls of the upper cover and the lower cover, the push rod is positioned in the fixing groove and moves in the fixing groove, and the push rod can move conveniently under the condition that the upper cover and the lower cover are closed through the arrangement of the fixing groove, so that the moving range of the push rod can be controlled.
8. According to the bend-controllable expander provided by the invention, the upper cover and the lower cover are detachably connected through the clamp, the upper cover and the lower cover can be fixed through the detachable arrangement, the expander pipe, the bend-controlling wire and the bend-controlling handle can be conveniently installed, and when a problem occurs in the expander, the internal structure of the expander can be conveniently maintained or replaced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the controlled bend dilator of the present invention;
FIG. 2 is a schematic view of the internal structure of the dilator of the present invention;
FIG. 3 is a cross-sectional view of a handle structure embodying the present invention for controlling bending;
fig. 4 is a cross-sectional view of the present invention showing the internal structure of the dilator tube and the frustoconical ring.
Description of reference numerals:
1. a dilator tube; 2. controlling the bending of the handle; 21. a first pulley; 22. a push rod; 23. pushing and twisting; 24. a second pulley; 3. controlling bending wires; 4. a circular truncated cone shaped ring; 5. an upper cover; 6. a lower cover; 7. a bend-controlling wire guide body; 8. a guide groove; 9. a tubular wall lumen; 10. an annular wall cavity; 11. fixing grooves; 12. and (6) placing the groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "distal", "proximal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Further, the term "distal" refers to the end distal from the bend-controlling handle, and the term "proximal" refers to the end proximal to the bend-controlling handle. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
Referring to fig. 1-4, the invention provides a bend-controllable dilator, which comprises a vertically arrangeddilator tube 1, a bend-controlling handle 2 and a bend-controllingwire 3. Thedilator tube 1 is provided with a tube wallsmall cavity 9, the tube wallsmall cavity 9 is arranged along the length direction of the dilator, two ends of the tube wallsmall cavity 9 penetrate through the tube wall of thedilator tube 1 and are used for accommodating thebending control wire 3, the bending control handle 2 is used for controlling bending of the dilator, the bending control handle 2 is rotatably arranged in the dilator, the bendingcontrol wire 3 is used for enabling the bending of the far end of the dilator tube to change, one end of the bendingcontrol wire 3 penetrates through the other end of the tube wallsmall cavity 9, and the other end of the bending control wire is connected to the bending control handle 2.
When using the expander, rotate through accuse curved handle 2, drive accusecurved silk 3 and remove when accuse curved handle 2 rotates, thereby control the difference of curved type, when accuse is curved, the required accuse curved length section hardness of expander pipe distal end is less than near-end main part hardness, thereby at first take place to deform at the lower curved type district atress of hardness, it is convenient when the operation, make the expander can directly adjust to the most ideal target position, can control curved type of moulding more fast arrival oval nest to the expander distal end according to the individual difference demand of ventricle, thereby practice thrift operating time, it is more convenient to make the operation, reduce the operation risk of mistake wearing aorta and pericardial cavity simultaneously.
The expander also comprises a circular truncated cone-shapedring 4, the circular truncated cone-shapedring 4 is positioned at the far end of theexpander pipe 1, the section with the large section of the circular truncated cone-shapedring 4 is abutted against theexpander pipe 1, one side of the circular truncated cone-shapedring 4 is coaxially connected with theexpander pipe 1, anannular wall cavity 10 is formed in the circular truncated cone-shapedring 4, theannular wall cavity 10 of the circular truncated cone-shapedring 4 is a single-sided cavity or a through cavity, theannular wall cavity 10 is communicated with a pipe wallsmall cavity 9, and one end, back to the bending control handle 2. Thereby form thering 4 through the round platform and fix accusecurved filament 3 on roundplatform shape ring 4, can drive through accuse curved handle 2 and controlcurved filament 3 and remove, thereby accusecurved filament 3 removes and can drive roundplatform shape ring 4 and remove and control curved to the expander to adapt to diversified clinical actual demand.
The expander also comprises an upper cover 5 and alower cover 6, the upper cover 5 and thelower cover 6 are arranged in parallel, a placinggroove 12 is formed in the opposite surface of the upper cover 5 and thelower cover 6, theexpander pipe 1 is positioned between the upper cover 5 and thelower cover 6, a bending wire control guide body 7 is arranged on the outer wall of theexpander pipe 1, a bending wire control guide body 7 is arranged in the middle of the upper cover 5 and thelower cover 6, a guide groove 8 is formed in the side wall of the bending wire control guide body 7, the guide groove 8 is communicated with the smallpipe wall cavity 9, and thebending wire control 3 enters the smallpipe wall cavity 9 through the guide groove 8. The bending-controllingwire 3 is guided into thesmall lumen 9 of the tube wall from the guide groove 8 of the bending-controlling wire guide body 7 through the bending-controlling wire guide body 7.
The bending control handle 2 comprises afirst pulley 21 arranged in the placinggroove 12 and apush rod 22 rotatably arranged on thefirst pulley 21, one end of thepush rod 22 extends out of the upper cover 5 and thelower cover 6, one end of thepush rod 22 extending out of the upper cover 5 and thelower cover 6 is provided with apush button 23 used for adjusting bending, and one end of the bendingcontrol wire 3 facing the bending control handle 2 is connected with thepush rod 22. When bending is controlled, thepush button 23 is pushed, thepush rod 22 rotates by taking thefirst pulley 21 as a circle center, and thepush rod 22 drives the bendingcontrol wire 3 to move, so that the autonomy in the interatrial puncture operation is improved.
Still be provided with thesecond pulley 24 that is used for assisting accusecurved silk 3 to remove in the standinggroove 12,second pulley 24 is located accuse curved silk guide body 7 andfirst pulley 21, and accusecurved silk 3 supports tightly withsecond pulley 24 lateral wall, through the setting ofsecond pulley 24, can assist accusecurved silk 3 to remove, makes accuse curved hand (hold) 2 take the in-process that accusecurved silk 3 removed, and is more convenient.
Offer the fixedslot 11 that is convenient forpush rod 22 to reciprocate on the 12 inside walls of standing groove, fixedslot 11 sets up alongexpander pipe 1 length direction, and fixedslot 11 runs through the lateral wall of upper cover 5 andlower cover 6, pushrod 22 is located fixedslot 11 and removes in fixedslot 11, through the setting of fixedslot 11, can make things convenient forpush rod 22 to remove under the upper cover 5 and the 6 confined circumstances of lower cover to can also control the scope that pushrod 22 removed.
Can dismantle the connection through the clamping between upper cover 5 and thelower cover 6, through the detachable setting, can be to upper cover 5 andlower cover 6 fixed in, conveniently installexpander pipe 1,curved silk 3 of accuse and the curved hand (hold) 2 of accuse, when the inside problem that goes wrong of expander, conveniently maintain or change expander inner structure.
Optionally,dilator tube 1 is made of medical polymer material with added contrast including PP, PE, FEP and pebax, the contrast including barium sulfate.
The bending control handle 2 is defined as a near end, the circular truncated cone shapedring 4 is defined as a far end, when bending control is carried out, the hardness of the bending control length section required by the far end of thedilator tube 1 is lower than that of a near end main body, and the hardness is distributed in two steps.
Thebend controlling wire 3 is made of high-strength metal material including but not limited to stainless steel, tungsten wire, nickel titanium, the truncated cone shapedring 4 is made of noble metal material including but not limited to platinum iridium alloy and platinum nickel alloy, and the developer includes barium sulfate, etc.
The bendingcontrol wire 3 and the pipe wallsmall cavity 9 are in a deformed mode that the bendingcontrol wire 3 and the pipe wallsmall cavity 9 are arranged to be one or two, the bendingcontrol wire 3 and the pipe wallsmall cavity 9 are arranged in a one-to-one correspondence mode, when the bendingcontrol wire 3 is arranged to be one, bending control of the dilator can be conducted towards one direction, and when the bendingcontrol wire 3 is arranged to be two, bending control of the distal end of the dilator can be conducted towards two opposite directions.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110331156.8ACN113069155A (en) | 2021-03-25 | 2021-03-25 | Controllable bent dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110331156.8ACN113069155A (en) | 2021-03-25 | 2021-03-25 | Controllable bent dilator |
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| Publication Number | Publication Date |
|---|---|
| CN113069155Atrue CN113069155A (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110331156.8APendingCN113069155A (en) | 2021-03-25 | 2021-03-25 | Controllable bent dilator |
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Citations (9)
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|---|---|---|---|---|
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| CN203029381U (en)* | 2012-08-13 | 2013-07-03 | 宁波胜杰康生物科技有限公司 | Multi-freedom-degree surgical instrument |
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| CN103948428A (en)* | 2014-04-03 | 2014-07-30 | 上海慧达医疗器械有限公司 | Renal artery ablation radiography/guide catheter with controllable bend head end |
| CN104958824A (en)* | 2015-07-30 | 2015-10-07 | 湖南埃普特医疗器械有限公司 | Guiding catheter |
| US20170007288A1 (en)* | 2005-07-25 | 2017-01-12 | Indian Wells Medical, Inc. | Steerable endoluminal punch |
| CN107898497A (en)* | 2017-11-23 | 2018-04-13 | 上海慧达医疗器械有限公司 | The arteria renalis ablation guiding catheter of trans-radial |
| CN212308626U (en)* | 2020-02-18 | 2021-01-08 | 心睿珂学（北京）供应链管理发展有限公司 | Catheter sheath capable of being adjusted and controlled bidirectionally |
| CN112245766A (en)* | 2020-10-30 | 2021-01-22 | 广东脉搏医疗科技有限公司 | An adjustable sheath |
- 2021
- 2021-03-25CNCN202110331156.8Apatent/CN113069155A/enactivePending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020068868A1 (en)* | 1990-02-02 | 2002-06-06 | Thompson Russell B. | Assemblies for creating compound curves in distal catheter regions |
| US20170007288A1 (en)* | 2005-07-25 | 2017-01-12 | Indian Wells Medical, Inc. | Steerable endoluminal punch |
| CN203029381U (en)* | 2012-08-13 | 2013-07-03 | 宁波胜杰康生物科技有限公司 | Multi-freedom-degree surgical instrument |
| CN103877663A (en)* | 2012-12-20 | 2014-06-25 | 上海微创电生理医疗科技有限公司 | Bending control device for catheter and catheter comprising same |
| CN103948428A (en)* | 2014-04-03 | 2014-07-30 | 上海慧达医疗器械有限公司 | Renal artery ablation radiography/guide catheter with controllable bend head end |
| CN104958824A (en)* | 2015-07-30 | 2015-10-07 | 湖南埃普特医疗器械有限公司 | Guiding catheter |
| CN107898497A (en)* | 2017-11-23 | 2018-04-13 | 上海慧达医疗器械有限公司 | The arteria renalis ablation guiding catheter of trans-radial |
| CN212308626U (en)* | 2020-02-18 | 2021-01-08 | 心睿珂学（北京）供应链管理发展有限公司 | Catheter sheath capable of being adjusted and controlled bidirectionally |
| CN112245766A (en)* | 2020-10-30 | 2021-01-22 | 广东脉搏医疗科技有限公司 | An adjustable sheath |
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| RJ01 | Rejection of invention patent application after publication | Application publication date:20210706 |