CN104474625A - Bag-free indwelling catheter - Google Patents
Bag-free indwelling catheter Download PDFInfo
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- CN104474625A CN104474625A CN201410823696.8A CN201410823696A CN104474625A CN 104474625 A CN104474625 A CN 104474625A CN 201410823696 A CN201410823696 A CN 201410823696A CN 104474625 A CN104474625 A CN 104474625A
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- catheter
- utricule
- pipe shaft
- bag
- memory
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Abstract
The invention relates to a bag-free indwelling catheter. The catheter comprises a pipe body, a liquid discharging cavity connector which is connected to one end of the pipe body, a liquid discharging hole which is formed in an insertion end of the pipe body, a bag body section which is communicated with the inner cavity of the pipe body and a control device which can control the expansion or retraction of the bag body section, wherein the bag body section is close to the insertion end of the pipe body. The bag body section which is controllable in expansion and retraction is arranged on a patient end of the catheter, the bag body section comprises a high resilience metal layer and a flexible elastic layer covering the outer surface of the high resilience metal layer, the expansion and retraction of the bag body section are controlled by a controller on the liquid discharging cavity connector end of the catheter, and the bag body section can be enabled by the high resilience metal layer of it to be retracted to the shape and size before the expansion. By adopting the bag-free indwelling catheter, the indwelling catheterization function in clinic use can be satisfied, and the defects of the existing product that a ball bag is broken, an inflating cavity of the ball bag is blocked, the ball bag and an inflating path leak water and the ball bag cannot be completely restored after being deformed in indwelling can be completely avoided.
Description
Technical field
The present invention relates to artificial urethral catheterization drain and indwelling catheter, specifically a kind of without capsule indwelling catheter.
Background technology
At present, setting up artificial urine flow-guiding channel by urethral catheterization is the water conservancy diversion urine means often used in clinical operation each stage.Catheter is the critical operation apparatus setting up Artificial drainage's urine passageway in urethral catheterization, the necessary medical apparatus and instruments being operation and protecting in process.
Clinically to needing the operation rear urine incontinence in order to avoid patient anaesthetizes carrying out anesthesia procedure, cause the pollution of surgical environments.Intubate urethral catheterization is carried out to patient before surgery in capital, all can continue intubated and drained urine in operation process He in postoperative a period of time.Some other non-narcotic operation, urine sample collecting and treatment all can carry out urethral catheterization to patient if desired.Such as: the operation of pregnant art, pelvic organs, shock patient, cut paralyzed patient, urethra or a perineal position have wound person, urine retention patient treatment, the extraction of intravesical urine sample, cystometry etc.
Owing to not possessing without capsule catheter the function that intravesical fixes intubate, easy slippage during intubate indwelling, then repeat to be easy to cause urinary tract bacteriological infection toward urethra interpolation pipe.Present stage is use saccule urinary catheter to Catheter in Patients 99.9%, only has seldom part to use without capsule catheter.But saccule urinary catheter has four inevitable risks to exist, have that sacculus breaks, sacculus fills up chamber blocking, sacculus and fill up path leaks and be out of shape situation about cannot reply completely after sacculus indwelling exactly.Once sacculus breaks, indwelling catheter failure, the fragment simultaneously formed after sacculus explosion can stay intravesical, need use cystoscopy and take out fragment, great misery is brought to patient, if do not take out fragment, be retained in intravesical for a long time and can form calculus, bring impact to the life of patient, health.If sacculus fills up chamber blocking, just bring difficulty in decannulation, the method solving blocking is all finally stomach wall or rectum puncture, and puncture sacculus and extracted by conduit, these methods all can bring great misery to patient.Sacculus or fill up path leakage sacculus can be caused to leak, the failure of indwelling catheter art, brings the misery of repetition intubate and the risk etc. of infection to patient.Sacculus cannot be returned to original situation because long-time water filling produces permanent deformation, draws water, can remain a small amount of water in sacculus if do not apply external force, if apply external force to force to extract the water in ball out, sacculus can produce fold because of deformation, either way can cause difficulty in decannulation, damage urethra.
Based on the existence of above-mentioned analysis and application risk.The present invention improves traditional catheter structure, while meeting pleural drainage and indwelling catheter function, avoids above-mentioned application risk.
Summary of the invention
The present invention is directed to the risk that existing catheter product occurs on Clinical practice, there is provided a kind of without capsule indwelling catheter, it can meet the indwelling catheter function in Clinical practice, can avoid again that the sacculus of existing product breaks completely, sacculus fills up chamber blocking, sacculus and fill up path leaking and being out of shape the defect that cannot reply completely after sacculus indwelling.
The present invention, without capsule indwelling catheter, comprising: the pipe shaft of catheter; Be connected to the exhaust chamber joint of this pipe shaft one end; Be positioned at the outage of this pipe shaft insertion end; Inside set high the utricule section of recovery metal level, this utricule section is communicated with this inner cavity of tube body, near the insertion end of this pipe shaft; And, the control device that described utricule section expands or shrinks can be made
.
Wherein, described utricule section comprises: be positioned at the default utricule part as utricule layer segment on described pipe shaft; Cover the described high recovery metal level of described default utricule outer wall; And the flexible resilient being covered in described high recovery metal level outer surface is outer.
The thickness of described high recovery metal level is 0.2-0.4 mm.Described high recovery metal level is memory alloy film or memory-alloy mesh.
Described control device can adopt various structures, realizes described utricule section and expands or shrink.Preferred embodiment 1 control device comprises: the using flexible wire with rack segments, and this using flexible wire is placed through in described inner cavity of tube body, and one end of the close described pipe shaft insertion end of described pipe shaft insertion end or described utricule section is fixed in the one end away from described rack segments; And, knob, described exhaust chamber joint side is installed on by being with the axle of miniature gears, miniature gears is meshing with the rack segments stretching into the described using flexible wire in described exhaust chamber joint, to drive described using flexible wire to described knob direction or to move the expansion or contraction that realize utricule section away from described knob direction.
Preferred embodiment 2 control device comprises: using flexible wire, and this using flexible wire is placed through in described inner cavity of tube body, and the insertion end of described pipe shaft is fixed in one end; And, the knob of tape spool, be installed on described exhaust chamber joint side, the other end of described using flexible wire stretches into described exhaust chamber joint internal fixtion on the axle of described knob, by positive and negative rotary knob, described B alloy wire is wound around or decontrols the expansion or the contraction that realize utricule section.
Described utricule section
'smanufacture method is as follows: using the default utricule part of pipe shaft as utricule internal layer, at default utricule part encasement tube shape memory alloys thin film or memory-alloy mesh, then cover this tubulose memory alloy film or memory-alloy mesh formation flexible resilient skin with elastic plastic material.Described tubulose memory alloy film or memory-alloy mesh adopt titanium-nickel alloy, gold-cadmium alloy or copper-zinc alloy etc.; Described elastic plastic material selects the one in elastic polyurethane, silicone rubber and Heveatex.
The pipe shaft surface of usual described catheter is smooth.In other design, the outer wall of the pipe shaft of described catheter longitudinally arranges some guiding gutters, and during using indwelling, this guiding gutter is as the flow pass of urethral secretions.The groove face of described guiding gutter is arc surface, in smoothing junction by the face of cylinder of evagination between adjacent guiding gutter; The degree of depth of described guiding gutter is 0.2-0.6 mm.
Compare with conventional balloon indwelling catheter, the innovation of this nothing capsule indwelling catheter mainly contains: the utricule section arranging a controllable expansion and contraction at catheter patient end.Utricule section comprises high recovery metal level (as memory alloy film or memory-alloy mesh) and is covered in the flexible resilient layer of this high recovery metal level outer surface.The expansion of utricule section and contraction, not by means of gas or liquid, control this utricule section by the controller of catheter atria interface end and expand and shrink.The utricule section that can ensure the high recovery metal level arranged in utricule section is retracted to shape, size before expansion again after expanding.
This nothing capsule indwelling catheter can meet the indwelling catheter function in Clinical practice, and the sacculus that completely avoid again existing product breaks, sacculus fills up chamber blocking, sacculus and fill up path leaks and is out of shape the defect that cannot reply completely after sacculus indwelling.
This nothing capsule indwelling catheter does not in use use sterilized water fill up sacculus and reclaim sterilized water, and each operation can save two syringes and sterilized water uses.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structure front elevational schematic;
Fig. 2 is utricule section and afterbody enlarged drawing in Fig. 1;
Fig. 3 is the state diagram after Fig. 1 embodiment 1 utricule section expands;
Fig. 4 is the rear enlarged drawing of utricule section expansion in Fig. 3;
Fig. 5 is the top partial view diagram that Fig. 1 contains control device;
Fig. 6 is A partial enlarged drawing in Fig. 5;
Fig. 7 is the front elevational schematic containing control device part in the embodiment of the present invention 2;
Fig. 8 is B partial enlarged drawing in Fig. 7.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, embodiment 1 mainly comprises without capsule indwelling catheter: the pipe shaft 4 of catheter, is connected to the exhaust chamber joint 1 of this pipe shaft 4 one end; Be positioned at the outage 6 of this pipe shaft 4 insertion end; Inside set high the utricule section 5 of recovery metal level 51, this utricule section is communicated with this inner cavity of tube body, near the insertion end of this pipe shaft; And, the control device that described utricule section 5 expands or shrinks can be controlled
.
Described utricule section 5 comprises the default utricule part 42 on described pipe shaft 4, and it is as utricule internal layer; Cover the high recovery metal level 51 of described default utricule part 42 outer wall; And, be covered in the flexible resilient skin 52 of this high recovery metal level 51 outer surface.The thickness of high recovery metal level 51 is 0.2-0.4 mm.High recovery metal level 51 is memory alloy film or memory-alloy mesh.
Control device in embodiment 1 comprises: titanium-nickel alloy wire 3, and titanium-nickel alloy wire 3 is placed through in described pipe shaft 4 inner chamber, is fixed in the insertion end 41 of described pipe shaft 4 in one end 31 that is spherical or knotting; And, the knob 2 of tape spool 21, be installed on described exhaust chamber joint 1 side, the other end of titanium-nickel alloy wire 3 stretches into described exhaust chamber joint 1 internal fixtion on the axle 21 of described knob, as Fig. 5, Fig. 6, this other end of titanium-nickel alloy wire 3, through the hole on axle 21, relies on the spheroid 32 of end to prevent from; By expansion or contraction that positive and negative rotary knob 2 makes titanium-nickel alloy wire 3 be wound around or decontrol to realize utricule section 5.When titanium-nickel alloy wire 3 is wound on this axle 21, titanium-nickel alloy wire 3 pulls the insertion end 41 of pipe shaft 4 that utricule section 5 is expanded, and forms the lying bag shown in Fig. 3, Fig. 4.When titanium-nickel alloy wire 3 is decontroled from this axle 21, revert to initial condition shown in Fig. 1, Fig. 2 by recovery metal level 51 high in utricule section 5, also namely lying bag shrinks rear state.
With reference to Fig. 1, Fig. 2, described utricule section 5
'sone of manufacture method is as follows: using the default utricule part 42 of pipe shaft 4 as utricule internal layer, at default utricule part 42 encasement tube shape memory alloys thin film or memory-alloy mesh 51, then cover this tubulose memory alloy film with elastic plastic material or memory-alloy mesh 51 forms flexible resilient skin 52.
The soft resilient layer 52 of embodiment 1 middle tube body 4, exhaust chamber joint 1 and utricule section 5 selects elastic plastic material.Such as: elastic polyurethane, silicone rubber, Heveatex etc.The high recovery metal level 51(of utricule section 5 and tubulose memory alloy film or memory-alloy mesh 51), adopt 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 without capsule indwelling catheter primary structure with above-described embodiment 1, and difference have employed another kind of control device expand to control utricule section 5 or shrink.This control device comprises: titanium-nickel alloy wire 3, and titanium-nickel alloy wire 3 has rack segments 32, and titanium-nickel alloy wire 3 is placed through in pipe shaft 4 inner chamber, and the insertion end (with reference to Fig. 1, Fig. 2) of described pipe shaft 4 is fixed in the one end away from described rack segments 32; And, a knob 2, it is installed on exhaust chamber joint 1 side by being with the axle of miniature gears 21, miniature gears 21 is meshing with the rack segments 32 stretching into the described B alloy wire in described exhaust chamber joint 1, rotary knob 2 drives described B alloy wire 3 to described knob direction by gear & rack structure or moves the expansion or contraction that realize utricule section 5 away from described knob direction, and the expansion of utricule section 5 or contraction principle are with embodiment 1.
The outer wall of the pipe shaft of catheter of the present invention longitudinally can arrange some guiding gutters, during use indwelling, these guiding gutters provide flow pass smoothly for the urethral secretions between catheter and urethral wall, secretions can be avoided to block, thus effectively reduce the risk that infection occurs urethra.The groove face of described guiding gutter is arc surface, in smoothing junction by the face of cylinder of evagination between adjacent guiding gutter; The degree of depth of described guiding gutter is 0.2-0.6 mm.
Claims (10)
1. one kind without capsule indwelling catheter, comprise the pipe shaft of catheter, be connected to the exhaust chamber joint of this pipe shaft one end and be positioned at the outage of this pipe shaft insertion end, characterized by further comprising: the utricule section inside setting high recovery metal level, this utricule section is communicated with this inner cavity of tube body, near the insertion end of this pipe shaft; And, the control device that described utricule section expands or shrinks can be made
.
2. catheter as claimed in claim 1, it is characterized in that, described utricule section comprises: be positioned at the default utricule part as utricule layer segment on described pipe shaft; Cover the described high recovery metal level of described default utricule outer wall; And the flexible resilient being covered in described high recovery metal level outer surface is outer.
3. catheter as claimed in claim 2, it is characterized in that, described high recovery metal level is memory alloy film or memory-alloy mesh.
4. catheter as claimed in claim 2 or claim 3, it is characterized in that, the thickness of described high recovery metal level is 0.2-0.4 mm.
5. catheter as claimed in claim 1 or 2, it is characterized in that, described control device comprises:
Have the using flexible wire of rack segments, this using flexible wire is placed through in described inner cavity of tube body, and the insertion end of described pipe shaft is fixed in the one end away from described rack segments; And
Knob, described exhaust chamber joint side is installed on by being with the axle of miniature gears, miniature gears is meshing with the rack segments stretching into the described using flexible wire in described exhaust chamber joint, to drive described using flexible wire to described knob direction or to move the expansion or contraction that realize utricule section away from described knob direction.
6. catheter as claimed in claim 1 or 2, it is characterized in that, described control device comprises:
Using flexible wire, this using flexible wire is placed through in described inner cavity of tube body, and the insertion end of described pipe shaft is fixed in one end; And
The knob of tape spool, be installed on described exhaust chamber joint side, the other end of described using flexible wire stretches into described exhaust chamber joint internal fixtion on the axle of described knob, by positive and negative rotary knob, described using flexible wire is wound around or decontrols the expansion or the contraction that realize utricule section.
7. catheter as claimed in claim 1 or 2, is characterized in that, the outer wall of the pipe shaft of this catheter longitudinally arranges some guiding gutters, and during using indwelling, this guiding gutter is as the flow pass of urethral secretions.
8. catheter as claimed in claim 7, it is characterized in that, the groove face of described guiding gutter is arc surface, in smoothing junction by the face of cylinder of evagination between adjacent guiding gutter; The degree of depth of described guiding gutter is 0.2-0.6 mm.
9. catheter as claimed in claim 1, it is characterized in that, the manufacture method of described utricule section is: using the default utricule part of pipe shaft as utricule internal layer, at default utricule part encasement tube shape memory alloys thin film or memory-alloy mesh, then cover this tubulose memory alloy film or memory-alloy mesh formation flexible resilient skin with elastic plastic material.
10. catheter as claimed in claim 9, is characterized in that, described tubulose memory alloy film or memory-alloy mesh adopt titanium-nickel alloy, gold-cadmium alloy or copper-zinc alloy; Described elastic plastic material selects the one in elastic polyurethane, silicone rubber and Heveatex.
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 true CN104474625A (en) | 2015-04-01 |
| CN104474625B CN104474625B (en) | 2017-06-06 |
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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) |
Cited By (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 |
Citations (6)
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| 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 |
| JP2005270394A (en) * | 2004-03-25 | 2005-10-06 | Piolax Medical Device:Kk | Dilating assist of tubular organ treatment instrument |
| 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 dilating 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 |
-
2014
- 2014-12-26 CN CN201410823696.8A patent/CN104474625B/en active Active
Patent Citations (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 |
| JP2005270394A (en) * | 2004-03-25 | 2005-10-06 | Piolax Medical Device:Kk | Dilating assist of tubular organ treatment instrument |
| 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 dilating 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN104474625B (en) | 2017-06-06 |
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