CN104474625B - One kind is without capsule self retaining catheter - Google Patents
One kind is without capsule self retaining catheter Download PDFInfo
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- CN104474625B CN104474625B CN201410823696.8A CN201410823696A CN104474625B CN 104474625 B CN104474625 B CN 104474625B CN 201410823696 A CN201410823696 A CN 201410823696A CN 104474625 B CN104474625 B CN 104474625B
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Abstract
The present invention relates to without capsule self retaining catheter, the catheter includes：Pipe shaft；It is connected to the exhaust chamber joint of the pipe shaft one end；Positioned at the outage of the pipe shaft insertion end；The utricule section connected with the inner cavity of tube body, insertion end of the utricule section near the pipe shaft；And, the control device of the utricule section expansion or shrinkage can be controlled.The utricule section that catheter of the present invention sets a controllable expansion and shrink in catheter patient end, utricule section includes recovery metal level high and is covered in the flexible resilient layer of the recovery metal level outer surface high, the expansion and contraction of utricule section, the recovery metal level high set in utricule section is controlled to be retracted to the shapes and sizes before expansion again after can guarantee that utricule section expansion by the controller of catheter exhaust chamber tip side.It disclosure satisfy that the indwelling catheter function in Clinical practice, and the sacculus that can completely avoid existing product again ruptures, sacculus fills up chamber and blocks, sacculus and fills up the defect that deformation after path leak and sacculus indwelling cannot be replied completely.
Description
Technical field
The present invention relates to artificial urethral catheterization drainage and self retaining catheter, specifically one kind is without capsule self retaining catheter.
Background technology
At present, it is the water conservancy diversion urine that clinical operation each stage is commonly used to set up artificial urine flow-guiding channel by catheterization
Means.Catheter is the critical operation apparatus that Artificial drainage's urine passageway is set up in catheterization, be during performing the operation and protecting must
Must medicine equipment.
Clinically to need to carry out anesthesia procedure operation in order to avoid urine incontinence after patient's anesthesia, cause surgical environments
Pollution.Intubation urethral catheterization will be carried out to patient before surgery, can all continued in surgical procedure and in postoperative a period of time
Intubated and drained urine.Some other non-narcotic operation, urine sample collecting and treatment all can carry out catheterization to patient if necessary.
For example：Pregnant art, pelvic organs operation, shock patient, cut paralyzed patient, urethra or a perineum person that has wound, retention of urine patient and control
Urine sample extraction, cystometry etc. in treatment, bladder.
The function of intubation is fixed in bladder due to not possessing without capsule catheter, is easily slipped during intubation indwelling, repeated
Urinary tract bacterium infection is easily lead to toward urethra interpolation pipe.At this stage to Catheter in Patients 99.9% be use sacculus urethral catheterization
Pipe, only seldom part is using without capsule catheter.But exactly there is ball with the presence of four inevitable risks in saccule urinary catheter
Capsule rupture, sacculus fill up chamber blocking, sacculus and deform situation about cannot reply completely after filling up path leak and sacculus indwelling.One
Denier sacculus ruptures, indwelling catheter failure, while the fragment formed after sacculus explosion can be stayed in bladder, it is necessary to use cystoscopy
Fragment is looked into and taken out, great pain is brought to patient, if not taking out fragment, being retained in for a long time in bladder can form knot
Stone, life, health care belt to patient influence.If sacculus fills up chamber blocking, difficulty in decannulation is just brought, the method for solving to block
Final is all that stomach wall or rectum are punctured, and punctures sacculus and extracts conduit, and these methods all can bring great pain to patient.
Sacculus fills up path leakage and can cause sacculus leak, the failure of indwelling catheter art, to patient bring repetition intubation pain and
Risk of infection etc..Sacculus cannot be returned to original situation because long-time water filling produces permanent deformation, if not applying external force
Draw water, a small amount of water can be remained in sacculus, if apply external force to force to extract the water in ball out, sacculus can produce fold, two because of deformation
The situation of kind can all cause difficulty in decannulation, damage urethra.
Presence based on above-mentioned analysis and application risk.The present invention is improved to traditional catheter structure, is led in satisfaction
While catheter conduction and indwelling catheter function, it is to avoid above-mentioned application risk.
The content of the invention
The risk that the present invention occurs for existing catheter product on Clinical practice, there is provided one kind is without capsule indwelling catheter
Pipe, it disclosure satisfy that the indwelling catheter function in Clinical practice, and the sacculus that can completely avoid existing product again is ruptured, sacculus is filled up
Chamber blocks, sacculus and fill up the defect that deformation cannot be replied completely after path leak and sacculus indwelling.
The present invention without capsule self retaining catheter, including：The pipe shaft of catheter；It is connected to the exhaust chamber joint of the pipe shaft one end；
Positioned at the outage of the pipe shaft insertion end；The utricule section of built-in recovery metal level high, utricule section is connected with the inner cavity of tube body,
Near the insertion end of the pipe shaft；And, the control device of the utricule section expansion or shrinkage can be made.
Wherein, the utricule section includes：The default utricule part as utricule inner portion on the pipe shaft；Cover
Cover the recovery metal level described high in the default utricule outer wall；And, it is covered in the recovery metal level appearance high
The flexible resilient outer layer in face.
The thickness of the recovery metal level high is 0.2-0.4 mm.The recovery metal level high is memory alloy film
Or memory-alloy mesh.
The control device can realize the utricule section expansion or shrinkage using various structures.Preferred embodiment 1 is controlled
Device includes：Flexible wire with rack segments, the flexible wire is placed through in the inner cavity of tube body, away from the tooth bar
One end of the close described pipe shaft insertion end of the pipe shaft insertion end or utricule section is fixed in one end of section；And, knob,
The exhaust chamber joint side is installed on by the axle with miniature gears, miniature gears with stretch into the institute in the exhaust chamber joint
The rack segments for stating flexible wire are ratcheting, to drive the flexible wire to the knob direction or away from the knob direction
The expansion or shrinkage of utricule section is realized in movement.
The control device of preferred embodiment 2 includes：Flexible wire, the flexible wire is placed through in the inner cavity of tube body, and one
The insertion end of the pipe shaft is fixed at end；And, the knob of tape spool is installed on the exhaust chamber joint side, the flexible gold
The other end of category silk is stretched into and is fixed on the axle of the knob in the exhaust chamber joint, is made by positive and negative turn knob described
B alloy wire winds or decontrols the expansion or shrinkage for realizing utricule section.
The preparation method of the utricule section is as follows：Using the default utricule part of pipe shaft as utricule internal layer, in default utricule
Part encasement tube shape memory alloys film or memory-alloy mesh, then cover the tubulose memory alloy film with elastic plastic material
Or memory-alloy mesh forms flexible resilient outer layer.The tubulose memory alloy film or memory-alloy mesh using titanium-nickel alloy,
Gold-cadmium alloy or copper-zinc alloy etc.；The elastic plastic material selection elastic polyurethane, silicon rubber and Heveatex
In one kind.
The pipe shaft surface of the usual catheter is smooth.In other designs, the outer wall of the pipe shaft of the catheter is indulged
To setting some guiding gutters, during indwelling is used the guiding gutter as urethral secretions flow pass.The guiding gutter
Groove face is arc surface, and the face of cylinder between adjacent guiding gutter by evagination is in smoothing junction；The depth of the guiding gutter is 0.2-0.6
mm。
Compare with conventional balloon self retaining catheter, this innovation without capsule self retaining catheter mainly has：In catheter patient end
One controllable expansion and the utricule section shunk are set.Utricule section includes recovery metal level high（As memory alloy film or memory are closed
Golden net）With the flexible resilient layer for being covered in the recovery metal level outer surface high.The expansion and contraction of utricule section are without the help of gas
Body or liquid, are controlled the expansion of utricule section by the controller of catheter atria interface end and are shunk.The height set in utricule section
Recovery metal level is retracted to shape, size before expansion again after can guarantee that utricule section expansion.
This disclosure satisfy that the indwelling catheter function in Clinical practice without capsule self retaining catheter, and existing product is completely avoid again
Sacculus rupture, sacculus fill up chamber block, sacculus and lacking of filling up that deformation after path leak and sacculus indwelling cannot reply completely
Fall into.
This does not use sterilized water to fill up sacculus and reclaims sterilized water in use without capsule self retaining catheter, operation every time
Two syringes can be saved and sterilized water is used.
Brief description of the drawings
Fig. 1 is the structure schematic elevation view of the embodiment of the present invention 1；
Fig. 2 is utricule section and afterbody enlarged drawing in Fig. 1；
Fig. 3 is the state diagram after the section expansion of the utricule of Fig. 1 embodiments 1；
Fig. 4 is enlarged drawing after utricule section expansion in Fig. 3；
Fig. 5 is top partial view diagrams of the Fig. 1 containing control device；
Fig. 6 is A partial enlarged drawings in Fig. 5；
Fig. 7 is the schematic elevation view containing control device part in the embodiment of the present invention 2；
Fig. 8 is B partial enlarged drawings in Fig. 7.
Specific embodiment
The present invention is described in detail with reference to embodiments.
Reference picture 1, Fig. 2, Fig. 3, Fig. 4, embodiment 1 mainly includes without capsule self retaining catheter：The pipe shaft 4 of catheter, connection
In the exhaust chamber joint 1 of the one end of pipe shaft 4；Positioned at the outage 6 of the insertion end of pipe shaft 4；Built-in recovery metal level 51 high
Utricule section 5, utricule section is connected with the inner cavity of tube body, near the insertion end of the pipe shaft；And, the utricule section 5 can be controlled swollen
Control device that is swollen or shrinking.
The utricule section 5 includes the default utricule part 42 on the pipe shaft 4, and it is used as utricule internal layer；It is covered in described
The recovery metal level 51 high of the default outer wall of utricule part 42；And, it is covered in the flexibility of the outer surface of recovery metal level 51 high
Elastic outer layer 52.The thickness of recovery metal level 51 high is 0.2-0.4 mm.Recovery metal level 51 high is memory alloy film
Or memory-alloy mesh.
Control device in embodiment 1 includes：Titanium-nickel alloy wire 3, titanium-nickel alloy wire 3 is placed through in the pipe shaft 4
In chamber, it is fixed in the insertion end 41 of the pipe shaft 4 in one end 31 that is spherical or knotting；And, the knob 2 of tape spool 21 is installed
In the side of exhaust chamber joint 1, the other end of titanium-nickel alloy wire 3 is stretched into the exhaust chamber joint 1 and is fixed on the rotation
On the axle 21 of button, such as Fig. 5, Fig. 6, the other end of titanium-nickel alloy wire 3 passes through the hole on axle 21, by the orbicule 32 of end
Prevent abjection；Titanium-nickel alloy wire 3 is set to wind or decontrol the expansion or shrinkage for realizing utricule section 5 by positive and negative turn knob 2.
Titanium-nickel alloy wire 3 is wound in when on the axle 21, and the insertion end 41 of the pulling pipe shaft 4 of titanium-nickel alloy wire 3 expands utricule section 5,
Form the lying bag shown in Fig. 3, Fig. 4.When titanium-nickel alloy wire 3 is decontroled from the axle 21, by recovery gold high in utricule section 5
Category layer 51 reverts to state after reset condition shown in Fig. 1, Fig. 2, namely lying bag contraction.
One of reference picture 1, Fig. 2, the preparation method of the utricule section 5 are as follows：Using the default utricule part 42 of pipe shaft 4 as
Utricule internal layer, in the default encasement tube shape memory alloys film of utricule part 42 or memory-alloy mesh 51, then uses Elastic plastic-rubber material
Material covers the tubulose memory alloy film or memory-alloy mesh 51 forms flexible resilient outer layer 52.
The selection elastic plastic material of soft resilient layer 52 of the middle tube body 4 of embodiment 1, exhaust chamber joint 1 and utricule section 5.Example
Such as：Elastic polyurethane, silicon rubber, Heveatex etc..The recovery metal level 51 high of utricule section 5（That is tubulose memory alloy film
Or memory-alloy mesh 51）, using titanium-nickel alloy, gold-cadmium alloy or copper-zinc alloy etc..
Fig. 7, Fig. 8 are the schematic diagram containing control device part in embodiment 2.Embodiment 2 is mainly tied without capsule self retaining catheter
With above-described embodiment 1, difference is to employ another control device to control utricule 5 expansion or shrinkage of section to structure.This control dress
Put including：Titanium-nickel alloy wire 3, titanium-nickel alloy wire 3 has rack segments 32, and titanium-nickel alloy wire 3 is placed through the inner chamber of pipe shaft 4
In, the insertion end of the pipe shaft 4 is fixed in the one end away from the rack segments 32（Reference picture 1, Fig. 2）；And, a knob 2,
It is installed on the side of exhaust chamber joint 1 by the axle with miniature gears 21, miniature gears 21 with stretch into the exhaust chamber joint 1
The B alloy wire rack segments 32 it is ratcheting, turn knob 2 drives the B alloy wire 3 to the knob by gear ＆ rack structure
The expansion or shrinkage for realizing utricule section 5 is moved in direction away from the knob direction, and the expansion or shrinkage principle of utricule section 5 is with real
Apply example 1.
The outer wall of the pipe shaft of catheter of the present invention longitudinally can be set some guiding gutters, these guiding gutters during using indwelling
For the urethral secretions between catheter and urethral wall provides smoothly flow pass, secretion can be avoided to block, so that effectively
Reduce the risk that urethra infects.The groove face of the guiding gutter is arc surface, by the circle of evagination between adjacent guiding gutter
Cylinder is in smoothing junction；The depth of the guiding gutter is 0.2-0.6 mm.
Claims (7)
1. one kind is without capsule self retaining catheter, including catheter pipe shaft, be connected to the pipe shaft one end exhaust chamber joint and position
In the outage of the pipe shaft insertion end, it is characterised in that also include：Built-in recovery metal level high utricule section, the utricule section with
The inner cavity of tube body is connected, near the insertion end of the pipe shaft；And, the control device of the utricule section expansion or shrinkage can be made；It is described
Recovery metal level high is tubulose memory alloy film or memory-alloy mesh；
The preparation method of utricule section is：Using the default utricule part of pipe shaft as utricule internal layer, in default utricule part set
Tubulature shape memory alloys film or memory-alloy mesh, then cover the tubulose memory alloy film or memory with elastic plastic material
Alloy network forms flexible resilient outer layer；
The control device is control device A, and control device A includes the flexible wire with rack segments, the flexible metal
Silk is placed through in the inner cavity of tube body, and the insertion end of the pipe shaft is fixed in the one end away from the rack segments；And, knob leads to
Cross the axle with miniature gears and be installed on the exhaust chamber joint side, miniature gears with stretch into the exhaust chamber joint described in
The rack segments of flexible wire are ratcheting, to drive the flexible wire to be moved to the knob direction or away from the knob direction
The dynamic expansion or shrinkage for realizing utricule section.
2. catheter as claimed in claim 1, it is characterized in that, the utricule section includes：On the pipe shaft as capsule
The default utricule part of internal layer segment；It is covered in the tubulose memory alloy film or note of the default utricule outer wall
Recall alloy network；And, it is covered in the flexible resilient outer layer of the tubulose memory alloy film or memory-alloy mesh outer surface.
3. catheter as claimed in claim 1, it is characterized in that, the thickness of the tubulose memory alloy film or memory-alloy mesh
It is 0.2-0.4 mm.
4. catheter as claimed in claim 1 or 2, it is characterized in that, the control device A is substituted with control device B, the control
Device B includes：
Flexible wire, the flexible wire is placed through in the inner cavity of tube body, and the insertion end of the pipe shaft is fixed in one end；And
The knob of tape spool, is installed on the exhaust chamber joint side, and the other end of the flexible wire stretches into the exhaust chamber
It is fixed in joint on the axle of the knob, the flexible wire is wound or is decontroled by positive and negative turn knob and realize capsule
The expansion or shrinkage of body section.
5. catheter as claimed in claim 1 or 2, it is characterized in that, the outer wall of the pipe shaft of the catheter is longitudinally disposed some to lead
Chute, during indwelling is used the guiding gutter as urethral secretions flow pass.
6. catheter as claimed in claim 5, it is characterized in that, the groove face of the guiding gutter is arc surface, adjacent guiding gutter it
Between it is in smoothing junction by the face of cylinder of evagination；The depth of the guiding gutter is 0.2-0.6 mm.
7. catheter as claimed in claim 1, it is characterized in that, the tubulose memory alloy film or memory-alloy mesh are used
Titanium-nickel alloy, gold-cadmium alloy or copper-zinc alloy；Elastic plastic material selection elastic polyurethane, silicon rubber and natural
One kind in latex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823696.8A CN104474625B (en) | 2014-12-26 | 2014-12-26 | One kind is without capsule self retaining catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823696.8A CN104474625B (en) | 2014-12-26 | 2014-12-26 | One kind is without capsule self retaining catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104474625A CN104474625A (en) | 2015-04-01 |
| CN104474625B true CN104474625B (en) | 2017-06-06 |
Family
ID=52749312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410823696.8A Active CN104474625B (en) | 2014-12-26 | 2014-12-26 | One kind is without capsule self retaining catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104474625B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113384796A (en) * | 2021-06-24 | 2021-09-14 | 温州医科大学附属第一医院 | Balloon-free indwelling catheter |
| CN114404780A (en) * | 2022-01-24 | 2022-04-29 | 成都维宁生物技术有限公司 | Non-sac leak-proof indwelling catheter and manufacturing method and application thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003260141A (en) * | 2002-03-08 | 2003-09-16 | Toru Shindo | Lumen dilator |
| JP2003325672A (en) * | 2002-05-13 | 2003-11-18 | Atsusato Kitamura | Device for expansion |
| JP4317475B2 (en) * | 2004-03-25 | 2009-08-19 | 株式会社パイオラックスメディカルデバイス | Tubular organ treatment device insertion device |
| CN2801192Y (en) * | 2005-05-26 | 2006-08-02 | 华中科技大学同济医学院附属同济医院 | Automatic expansion type esophagus dilation catheter |
| CN203017551U (en) * | 2012-11-23 | 2013-06-26 | 褚校涵 | Catheter |
| CN204428599U (en) * | 2014-12-26 | 2015-07-01 | 湛江市事达实业有限公司 | Without capsule indwelling catheter |
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2014
- 2014-12-26 CN CN201410823696.8A patent/CN104474625B/en active Active
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| Publication number | Publication date |
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| CN104474625A (en) | 2015-04-01 |
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