CN109999317A - A kind of conduit and intervention device of adjustable hardness - Google Patents
A kind of conduit and intervention device of adjustable hardness Download PDFInfo
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- CN109999317A CN109999317A CN201910425110.5A CN201910425110A CN109999317A CN 109999317 A CN109999317 A CN 109999317A CN 201910425110 A CN201910425110 A CN 201910425110A CN 109999317 A CN109999317 A CN 109999317A
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- adjustment hole
- catheter body
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- 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
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- 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
- A61M25/0052—Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port
-
- 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
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
- A61M2025/0046—Coatings for improving slidability
- A61M2025/0047—Coatings for improving slidability the inner layer having a higher lubricity
-
- 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
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
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Abstract
The invention discloses the conduits and intervention device of a kind of adjustable hardness, belong to the field of medical instrument technology.Conduit provided by the present invention includes catheter body and hardness adjusts body, and the hardness adjustment hole for capableing of grafting hardness adjusting body is provided in catheter body.It is capable of increasing the hardness of conduit when hardness adjusting body grafting enters in hardness adjustment hole, the hardness of conduit can be reduced when hardness adjusting body pulls out out of hardness adjustment hole and.And body can partly or completely grafting enters in catheter body according to demand for hardness adjusting, and the different parts of conduit is made to have different hardness.Conduit provided by the invention can adjust hardness number according to use demand, the conduit with suitable stiffness is convenient for passing through pathological tissues over the course for the treatment of, moving direction is controllable, compliance is good, flexibility is high and versatility is high, it not only contributes to fast and efficiently complete to perform the operation, and surgical effect is preferable, restore convenient for patient's later period.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of conduits and intervention device of adjustable hardness.
Background technique
Interventional therapy is a kind of minimally-invasive treatment, is the emerging therapeutic method between surgery and medicine treatment.Intervention
The treatment method for the treatment of needs under the guidance of medical imaging device, special conduit is introduced human body, thus to internal morbid state
Carry out diagnosis and local treatment.Over the course for the treatment of, doctor by conduit extension doctor both hands.The notch of interventional therapy
(point of puncture) very little does not have to cut tissue, so that it may which a variety of diseases of operative treatment, such as embolism, tumour, hemangioma etc. has
It does not operate on, the features such as wound is small, recovery is fast and effect is good.
Now with the gradually promotion of fine interventional therapy, clinically conduit performance requirement used in interventional therapy is also got over
Come higher.Basic transmission tool of the conduit as interventional therapy, the weight that it is not only responsible for conveying, supports various intervention apparatus
Appoint, and has the function of carrying out real-time monitoring to salvage drug and haemodynamics in various associated treatments.Therefore conduit is
The key of interventional therapy success, and improve one of the vital determinant of Successful treatment with interventional rate.
But often there is the case where hardness of conduit is not suitable with special lesion in clinical application in existing conduit.When leading
When the hardness of pipe is really up to the mark, conduit tortuous can not pass through lesion during push, it is easy to damage to damaging property of pathological tissues
Wound is unfavorable for the subsequent operation treatment of doctor；And when the hardness of conduit is excessively soft, due to its in the blood vessel support performance not enough from
And the direction for easilying lead to conduit is uncontrollable, and then causes conduit that can not quickly be pushed to target position, extends operating time.
Also, the hardness of existing conduit everywhere generally maintains unanimously, can not carry out adaptability tune according to the specific requirements in therapeutic process
Whole, flexibility is poor, is unfavorable for intervention operation high quality, quickly completes.
Summary of the invention
It is an object of the present invention to provide a kind of conduits of adjustable hardness, and the conduit hardness is adjustable, and compliance is good,
Flexibility and versatility are higher.
It is another object of the present invention to provide a kind of intervention devices, and the intervention device therapeutic effect is good, can be quick
Complete intervention operation.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of conduit of adjustable hardness, comprising:
Catheter body is provided with hardness adjustment hole in the catheter body；
Hardness adjusts body, and the hardness is optionally provided in the hardness adjustment hole and adjusts body, the hardness tune
Section body is at least partly configured to be plugged to the hardness for increasing the conduit in the hardness adjustment hole, and described hard
Degree adjusting body is at least partly configured to detach out of described hardness adjustment hole to reduce the hardness of the conduit.
Preferably, the quantity of the hardness adjustment hole be it is multiple, each hardness adjustment hole is along the conduit sheet
The axial setting of body.
Preferably, the hardness adjust body quantity be it is multiple, in each hardness adjustment hole can grafting at least
One hardness adjusts body.
Preferably, the cross sectional shape of multiple hardness adjustment holes is different, the hardness adjustment hole and position are in the inner
The shape that the hardness adjusts body is adapted.
Preferably, the catheter body includes the lubrication inner tube that successively nesting is arranged from inside to outside, support middle tube
And outer tube, the hardness adjustment hole are arranged in the outer tube.
Preferably, being provided with hydrophilic lubrication coating in the outer tube.
Preferably, the catheter body includes straightway and bending section, the bending section is arranged in two neighboring straight line
Between section, the bending section is configured to keep the two neighboring straightway in parallel or conllinear.
Preferably, the conduit of the adjustable hardness further include:
One end of the catheter body is arranged in attachment base, the attachment base, be provided on the attachment base with it is described hard
The insertion hole of adjustment hole connection is spent, the insertion hole adjusts body for being inserted into the hardness.
Preferably, the conduit of the adjustable hardness further include:
Protection pipe, the protection pipe are arranged between the catheter body and the attachment base, are arranged in the protection pipe
There is stress relief structure.
A kind of intervention device, the conduit including above-mentioned adjustable hardness.
Beneficial effects of the present invention:
The present invention provides a kind of conduit of adjustable hardness, which includes that catheter body and hardness adjust body, conduit
The hardness adjustment hole for capableing of grafting hardness adjusting body is provided on ontology.When hardness, which adjusts body grafting, to be entered in hardness adjustment hole
It is capable of increasing the hardness of conduit, the hardness of conduit can be reduced when hardness adjusting body pulls out out of hardness adjustment hole and.And
Body can partly or completely grafting enters in catheter body according to demand for hardness adjusting, and the different parts of conduit is made to have difference
Hardness.Conduit provided by the invention can adjust hardness number according to use demand, over the course for the treatment of with suitable stiffness
Conduit is convenient for through pathological tissues, and moving direction is controllable, and compliance is good, and flexibility is high and versatility is high, not only contribute to quickly,
It is efficiently completed operation, and surgical effect is preferable, restored convenient for patient's later period.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the conduit of adjustable hardness provided by the present invention；
Fig. 2 is structural schematic diagram when the non-grafting hardness of conduit of adjustable hardness provided by the present invention adjusts body；
Fig. 3 is the installation diagram that catheter body and hardness provided by the present invention adjust body；
Fig. 4 is the partial enlarged view of part A in Fig. 3；
Fig. 5 is the side view that catheter body and hardness provided by the present invention adjust body；
Fig. 6 is the structural schematic diagram of catheter body provided by the present invention；
Fig. 7 is the partial enlarged view of part B in Fig. 6；
Fig. 8 is the side view of catheter body provided by the present invention；
Fig. 9 is the partial enlarged view of C portion in Fig. 6；
Figure 10 is the structural schematic diagram of protection pipe provided by the present invention.
In figure: 1, catheter body；11, hardness adjustment hole；12, inner tube is lubricated；13, middle tube is supported；14, outer tube；
101, straightway；102, bending section；
2, hardness adjusts body；
3, attachment base；301, first connecting portion；302, second connecting portion；303, rotating part；304, it is inserted into hole；
4, protection pipe；401, stress relief structure；
5, hydrophilic lubrication coating.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", only
For descriptive purposes, it is not understood to indicate or imply relative importance.Wherein, term " first position " and " second position "
For two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be mechanical connection,
It is also possible to be electrically connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
Connection.For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
A kind of conduit of adjustable hardness is present embodiments provided, which can be used for minimally invasive hand as means of transportation
In art, to assist doctor to complete the interventional therapy to patient.As shown in Figures 1 to 5, which includes catheter body 1 and hardness
Body 2 is adjusted, catheter body 1 is the tubular structure for being internally provided with cavity, and it is rod-like structure that hardness, which adjusts body 2,.In catheter body 1
It is provided with hardness adjustment hole 11, hardness adjustment hole 11 can be blind hole, or through-hole, hardness adjustment hole 11 is preferably along conduit
The axis direction of ontology 1 is extended.Hardness adjusts body 2 and is optionally provided in hardness adjustment hole 11.Due to hardness tune
Saving body 2 has certain hardness, when hardness, which adjusts body 2, to be plugged in hardness adjustment hole 11, adjusts compared to not set hardness
The part of body 2, the hardness that the part that hardness adjusts body 2 is provided on conduit increase；When hardness adjusts body 2 from hardness adjustment hole 11
When inside detaching, compared to the part for being provided with hardness adjusting body 2, the hardness for the part that not set hardness adjusts body 2 on conduit subtracts
It is small.It should be noted that when, grafting or detach hardness adjust body 2 when, doctor can selected section grafting, part according to demand
It detaches, whole grafting or all detach, so that the different parts of conduit have different hardness.
In the present embodiment, by catheter body 1 be arranged hardness adjustment hole 11, and according to the process of interventional therapy with
And demand in hardness adjustment hole 11 grafting or detach hardness adjust body 2, it will be able to reach and adjust the hardness of conduit to not
With value, make conduit that there is the purpose for the hardness for being most suitable for the treatment process.Compared to the immutable conduit of hardness, variable hardness
The compliance of conduit is good, and flexibility and versatility are high, not only contributes to fast and efficiently complete to perform the operation, additionally it is possible to improve operation
Effect is restored convenient for patient's later period.Also, letter is not only operated by the hardness that the method that plug hardness adjusts body 2 changes conduit
Single, controllability is high, and the adjustable range of hardness is wider.
Specifically, as shown in Figure 1 and Figure 4, it is using bar made of metal material or high molecular material that hardness, which adjusts body 2,
Shape structure.Metal material can be metal wire material, such as titanium-nickel wire (NiTi) or stainless steel wire etc..Using high molecular material or
Hardness made of person's metal material, which adjusts body 2 itself, has certain toughness and support hardness.Preferably, hardness adjusts oneself of body 2
Body hardness is greater than the hardness of former catheter body 1 (when not set hardness adjusts body 2).
As shown in Figures 3 to 8, catheter body 1 is cylindrical-shaped structure, sets the cylindric of no corner angle for catheter body 1
Structure can be improved the conduit smoothness mobile in patient's body, and conduit is avoided to scratch the normal tissue of patient's body.Conduit sheet
The external diametrical extent of body 1 is preferably in 0.5mm-4mm, such as can be 0.5mm, 1mm, 2mm, 2.5mm, 3mm, 3.6mm or 4mm.
One end that catheter body 1 protrudes into patient's body has arc structure, and the end that arc structure can be avoided conduit scratches patient's body
Interior normal tissue.And for the ease of being used cooperatively with external image equipment, enables the surgeon to enough conduits of clearly grasping and suffering from
Person intracorporal position is additionally provided with X-ray opaque material in catheter body 1, which can be heavy metal material, example
Such as platinumiridio or gold.
Further, catheter body 1 can be single layer structure, or multilayered structure.In order to improve catheter body 1
Performance preferably sets multilayer mechanism for catheter body 1, and as shown in figs. 4 and 7, in the present embodiment, catheter body 1 is three
Layer structure comprising lubrication inner tube 12, support middle tube 13 and the outer tube 14 that successively nesting is arranged from inside to outside.Certainly exist
In other embodiments, catheter body 1 also may include double-layer structure or more layers structure, be not particularly limited herein.
Specifically, lubrication inner tube 12 is using tubular structure made of the high molecular material with lubricating action.High score
Sub- material can have the material of low-friction coefficient using polytetrafluoroethylene (PTFE) (PTFE), fluorinated ethylene propylene copolymer (FEP) etc..
Lubrication lumen is formed using the inner wall for lubricating inner tube 12 made of above-mentioned low friction coefficient materials, which has profit
Sliding effect, convenient for injecting its internal liquid flowing.
Support middle tube 13 is mainly used for supporting entire catheter body 1, to improve the structural strength of catheter body 1.Support
Middle tube 13 is by using metal wire material, perhaps high molecular material is made and in the shape of a spiral or establishment type structure setting is in lubrication
Structure between layer pipe 12 and outer tube 14.Further, spiral shell of the support middle tube 13 along the length direction of lubrication inner tube 12
Rotation density or count may be the same or different.In the present embodiment, preferably different, so that catheter body 1 is different
Position has different hardness.Further, spiral density or count of the support middle tube 13 close to doctor operating side
Spiral density or count of the middle tube 13 far from doctor operating side are preferably greater than supported, increase tendency can be for equably
Increase, or unevenly increase, be not particularly limited herein.
Outer tube 14 is mainly used for fixed support middle tube 13, setting hardness adjustment hole 11 and the in-vivo tissue with patient
Contact.In the present embodiment, outer tube 14 is using tubular structure made of plastic type high molecular material.Plastic type macromolecule material
Material can be the plastic pipe such as nylon (PA or Pebax), polyvinyl chloride (PVC), silicon rubber, polypropylene (PP), polyethylene (PE)
Material.Further, in order to enable catheter body 1 smoothly to move in patient vessel, when mitigating the importing blood vessel of catheter body 1
Friction to vascular wall, to reduce damage of the conduit to vascular wall, as shown in Fig. 2, being arranged in the outside wall surface of outer tube 14
There is hydrophilic lubrication coating 5.Hydrophilic lubrication coating 5 be using have hydrophilic properties, it is wettable, lubrication, be suitble to particular organisms
Learn layer structure made of the material for interacting and being suitable for application in above medical instrument intervention class product.Hydrophilic lubrication coating
Chemical action can occur between 5 and water to form a kind of gel rubber material, this gel rubber material can show extremely low friction
Coefficient has super greasy property.Still further, hydrophilic lubrication coating 5 can be single layer structure, or multilayered structure,
Preferably multilayered structure, to improve greasy property.
In the present embodiment, hardness adjustment hole 11 is arranged in outer tube 14, by outer tube 14 close to doctor operating side
One end extends along the other end of the axis direction outer layers pipe 14 of outer tube 14.Certainly in other embodiments, if conduit sheet
Body 1 is more layers structure, and hardness adjustment hole 11 also can be set in outermost layer or middle layer.Optionally, hardness adjustment hole 11
Quantity can be one, or it is multiple, it is in the present embodiment, as shown in figs. 4 and 7, preferably several.Multiple hardness tune
Knothole 11 is provided at circumferentially spaced along outer tube 14, is perfectly even distributed.By selecting different 11 grafting of hardness adjustment hole hard
Degree, which adjusts body 2, can be changed catheter body 1 to the curved bending attribute of different directions, in order to which catheter body 1 is with good
Bending attribute can be taken into account when hardness property, so that catheter body 1 is easy to tortuous and passed through pathological tissues.
Optionally, the cross sectional shape of multiple hardness adjustment holes 11 can be identical, as shown in Figure 4 and Figure 5, hardness adjustment hole 11
Cross sectional shape be circle.Can certainly be different, as shown in 7 and Fig. 8, the cross sectional shape of some hardness adjustment holes 11 is circle
Shape, and the cross sectional shape of some hardness adjustment holes 11 is then trapezoidal.The hardness adjustment hole 11 of different cross section shape is preferably along conduit
Ontology 1 is provided at circumferentially spaced.Certainly in other embodiments, the shape of hardness adjustment hole 11 may be rectangle, parallel four
The regular shapes such as side shape or ellipse or other profiled shapes.The preferred phase of cross sectional shape of each hardness adjustment hole 11 everywhere
Together, it is inserted into order to which hardness adjusts body 2.Accordingly, the shape that hardness adjusts body 2 is adapted with the shape of hardness adjustment hole 11.
By the way that hardness adjustment hole 11 of different shapes is arranged, can grafting hardness of different shapes adjust body 2, hardness tune of different shapes
The bending force and hardness difference for saving body 2, can make catheter body 1 have different hardness property and bending attribute.Such as it is same
The hardness of sectional area adjusts body 2, and rectangular and circular bending force is just different.
The depth of multiple hardness adjustment holes 11 may be the same or different.In the present embodiment, multiple hardness adjustment holes
11 preferably differences, adjust body 2 with the hardness of grafting different length, so that reaching makes the hardness of 1 different parts of catheter body not
Same purpose.The length of specific each hardness adjustment hole 11 is not particularly limited herein, as the case may be specific setting.
Further, it in order to improve the bending property of conduit, enables the duct to be changed according to patient vessel or lesion situation
The drug for the treatment of, suppository, bracket, spring ring etc. are transported to target lesion position, catheter body 1 provided in this embodiment
On be provided with flexible joint structure.As shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 9, catheter body 1 includes two sections of straightways 101
With one section of bending section 102, bending section 102 is above-mentioned flexible joint structure, by being made of easily deformable material
Tubular structure.Bending section 102 is arranged between two sections of straightways 101, by be bent section 102 can make it is two neighboring straight
Line segment 101 is parallel, that is, will wherein one section of straightway 101 is towards another 180 ° of 101 place lateral bend of straightway, to reach
The parallel effect of two straightways 101.And bending section 102 can make two sections of straightways 101 conllinear when keeping straight.Certainly exist
In other embodiments, multiple flexible joint structures can also be set in catheter body 1.The master of flexible joint structure
Wanting function is so that conduit guarantees that the straightway 101 of catheter body 1 does not give a discount when tortuous, and eliminates extra support in bending
Stress mitigates the recovery elastic force of conduit to make conduit compliance more preferable, enables the duct to readily and easily import tortuous blood vessel
Or in access.
Further, catheter body 1 is operated for the ease of doctor, which further includes attachment base 3.Such as Fig. 1 and Fig. 2 institute
Show, attachment base 3 is female Luer attachment base, and one end of catheter body 1 is arranged in.Attachment base 3 includes sequentially connected first
Interconnecting piece 301, rotating part 303 and second connecting portion 302.It is provided in first connecting portion 301 and is connected to hardness adjustment hole 11
It is inserted into hole 304, insertion hole 304 adjusts body 2 for being inserted into hardness.Body 2 is adjusted compared to hardness is axially inserted into along catheter body 1
Insertion method, hardness adjust body 2 and bend into hardness adjustment hole 11 after the radial grafting of attachment base 3, not only more meet doctor
Operating habit, exert a force convenient for doctor, and advantageously reduce the difficulty of alignment, be advantageously implemented hardness and adjust the quick slotting of body 2
It connects and detaches.Rotating part 303 includes the blade that two panels is oppositely arranged, and doctor, which holds blade rotation, can be realized rotary guide pipe ontology
1 purpose.Luer threads structure is provided in second connecting portion 302, the setting of luer threads structure is convenient for by the conduit and outside
The equipment of portion's delivery conduit connects.
Further, in order to improve the bonding strength between attachment base 3 and catheter body 1, when avoiding conduit overbending
It is broken between catheter body 1 and attachment base 3, which further includes protection pipe 4.As depicted in figs. 1 and 2, protection pipe 4 is arranged
Between catheter body 1 and attachment base 3, protection pipe 4 is made of soft high molecular material, such as silicon rubber etc..Protection pipe 4
On be provided with stress relief structure 401, specifically, as shown in Figure 10, stress relief structure 401 be arranged in protection pipe 4
Groove structure, the setting of groove structure make the outer diameter of protection pipe 4 in grading structure, concentrate so as to eliminate in guiding-tube bend
Stress between catheter body 1 and attachment base 3, and then reaching prevents cracking between catheter body 1 and attachment base 3 from even fractureing
Purpose.
The application method of the conduit of the adjustable hardness are as follows:
It needs first to do homework before starting interventional therapy, injecting apparatus is assembled on attachment base 3 by doctor first, so
Afterwards in the intracavitary injection liquid of the lubrication management of catheter body 1.Then it is assessed, is chosen whether in catheter body according to preoperative case
Filling hardness adjusts body 2 in 1 hardness adjustment hole 11.Specifically, hardness tune can be filled not in hardness adjustment hole 11 in advance
Body 2 is saved, when catheter body 1 occurs adding hardness tune again when support force is inadequate during importing patient's body access or blood vessel
Save body 2；Or can also be inserted into hardness in all hardness adjustment holes 11 in advance and adjust body 2, when catheter body 1 is importing
During blood vessel or access when excessive high hardness, then detaches some or all of hardness and adjust body 2.
When starting interventional therapy, doctor is impregnated with medical use liquid first or is applied wet catheter surface, makes to be arranged in conduit sheet
Hydrophilic lubrication coating 5 on body 1 has lubricating action；Then doctor by puncture by this can hardness adjust and with flexible
The conduit of joint structure imports human vas or access.During pushing conduit, if there is importing difficulty and cause
Enter difficult reason be catheter body 1 support hardness not enough, conduit it is partially soft when, doctor can be to the insertion hole 304 of attachment base 3
Interior insertion hardness adjusts body 2, and hardness adjusts body 2 and is plugged in hardness adjustment hole 11 from insertion hole 304, and is plugged to certain depth
Until conduit becomes that push importing blood vessel can be continued firmly enough.
It, at this time can outside extraction unit if finding the possibility of the too hard spinosity blood-breaking pipe of conduit or tissue in importing process
Divide or whole hardness adjust body 2, reduces conduit hardness to reach, catheter body 1 is made to become the soft purpose complied with.Extraction
Length can need to control according to actual clinical, and the quantity of extraction can also need selected section or entire quantity to take out according to hardness
Out.
It, can be by control catheter body 1 if encountering 180 ° of blood vessel bendings during importing conduit in the blood vessels
The position of flexible joint structure is realized, which is placed at the minimum dimension of vascular bending radius, in this way
Prevent conduit from giving a discount can adapt to curved blood vessel again simultaneously.
The present embodiment additionally provides a kind of intervention device, which includes the conduit of above-mentioned adjustable hardness.Pass through
Using above-mentioned conduit, which can fast and efficiently complete interventional therapy, be conducive to improve interventional therapy efficiency with
And the post-operative recovery effect of patient.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of conduit of adjustable hardness characterized by comprising
Catheter body (1) is provided with hardness adjustment hole (11) on the catheter body (1)；
Hardness adjusts body (2), and the hardness is optionally provided in the hardness adjustment hole (11) and adjusts body (2), described
Hardness adjusting body (2) is at least partly configured to be plugged in the hardness adjustment hole (11) to increase the conduit
Hardness, and the hardness adjusts body (2) and is at least partly configured to detach to subtract out of described hardness adjustment hole (11)
The hardness of the small conduit.
2. the conduit of adjustable hardness according to claim 1, which is characterized in that
The quantity of the hardness adjustment hole (11) be it is multiple, each hardness adjustment hole (11) is along the catheter body (1)
Axial setting.
3. the conduit of adjustable hardness according to claim 2, which is characterized in that
The hardness adjust body (2) quantity be it is multiple, being capable of at least one institute of grafting in each hardness adjustment hole (11)
It states hardness and adjusts body (2).
4. the conduit of adjustable hardness according to claim 2, which is characterized in that
The cross sectional shapes of multiple hardness adjustment holes (11) is different, the hardness adjustment hole (11) and position in the inner described hard
The shape that degree adjusts body (2) is adapted.
5. the conduit of adjustable hardness according to claim 1, which is characterized in that
The catheter body (1) include from inside to outside successively the lubrication inner tube (12) of nested setting, support middle tube (13) and
Outer tube (14), the hardness adjustment hole (11) are arranged on the outer tube (14).
6. the conduit of adjustable hardness according to claim 5, which is characterized in that
Hydrophilic lubrication coating (5) are provided on the outer tube (14).
7. the conduit of adjustable hardness according to claim 1, which is characterized in that
The catheter body (1) includes straightway (101) and bending section (102), and the bending section (102) is arranged two neighboring
Between straightway (101), the bending section (102) be configured to make the two neighboring straightway (101) parallel or
Collinearly.
8. the conduit of adjustable hardness according to claim 1, which is characterized in that further include:
Attachment base (3), attachment base (3) setting are provided on one end of the catheter body (1), the attachment base (3)
The insertion hole (304) being connected to the hardness adjustment hole (11), the insertion hole (304) adjust body for being inserted into the hardness
(2)。
9. the conduit of adjustable hardness according to claim 8, which is characterized in that further include:
Protection pipe (4), the protection pipe (4) are arranged between the catheter body (1) and the attachment base (3), the protection
Stress relief structure (401) are provided on pipe (4).
10. a kind of intervention device, which is characterized in that the conduit including the described in any item adjustable hardness of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425110.5A CN109999317A (en) | 2019-05-21 | 2019-05-21 | A kind of conduit and intervention device of adjustable hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425110.5A CN109999317A (en) | 2019-05-21 | 2019-05-21 | A kind of conduit and intervention device of adjustable hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109999317A true CN109999317A (en) | 2019-07-12 |
Family
ID=67177556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910425110.5A Pending CN109999317A (en) | 2019-05-21 | 2019-05-21 | A kind of conduit and intervention device of adjustable hardness |
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| Country | Link |
|---|---|
| CN (1) | CN109999317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516434A (en) * | 2020-11-30 | 2021-03-19 | 临沂市兴华医用器材有限公司 | Anesthesia catheter |
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