CN204428599U - Without capsule indwelling catheter - Google Patents
Without capsule indwelling catheter Download PDFInfo
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- CN204428599U CN204428599U CN201420839534.9U CN201420839534U CN204428599U CN 204428599 U CN204428599 U CN 204428599U CN 201420839534 U CN201420839534 U CN 201420839534U CN 204428599 U CN204428599 U CN 204428599U
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Abstract
A kind of without capsule indwelling catheter, comprising: pipe shaft; Be connected to the exhaust chamber joint of this pipe shaft one end; Be positioned at the outage of this pipe shaft insertion end; The utricule section be communicated with this inner cavity of tube body, this utricule section is near the insertion end of this pipe shaft; And, the control device that described utricule section expands or shrinks can be controlled.This nothing capsule indwelling catheter arranges the utricule section of a controllable expansion and contraction at catheter patient end, utricule section comprises high recovery metal level and is covered in the flexible resilient skin of this metal level outer surface, controlled expansion and the contraction of this utricule section by the controller of exhaust chamber tip side, the high recovery metal level established in utricule section can ensure the shape before being retracted to expansion after utricule section expands again and size.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.
Description
Technical field
This utility model 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.This utility model improves traditional catheter structure, while meeting pleural drainage and indwelling catheter function, avoids above-mentioned application risk.
Summary of the invention
The risk that this utility model occurs on Clinical practice for existing catheter product, 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.
This utility model comprises without capsule indwelling catheter: 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; The utricule section be communicated with this inner cavity of tube body, this utricule section is 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: the default utricule part on described pipe shaft, as utricule internal layer; Cover the high recovery metal level of described default utricule outer wall; And the flexible resilient being covered in this high recovery metal level outer surface is outer.
Described flexible resilient skin is a kind of forming materials selected in elastic polyurethane, silicone rubber and Heveatex.
The thickness of described high recovery metal level is 0.2-0.4 mm.Described high recovery metal level is preferably memory alloy film or memory-alloy mesh.Described memory alloy film or memory-alloy mesh in a tubular form, adopt titanium-nickel alloy, gold-material such as cadmium alloy or copper-zinc alloy.
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.
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 shrinking not by means of gas or liquid, by catheter atria interface end
controllercontrol this utricule section 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 2 syringes and sterilized water uses.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment 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 this utility model embodiment 2;
Fig. 8 is B partial enlarged drawing in Fig. 7.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in detail.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, embodiment 1 mainly comprises the pipe shaft 4 of catheter without capsule indwelling catheter, is connected to the exhaust chamber joint 1 of this pipe shaft 4 one end, is positioned at the outage 6 of this pipe shaft 4 insertion end, with the utricule section 5 of this pipe shaft 4 inner space, utricule section 5 is near the insertion end of this pipe shaft 4; And, the control device that described utricule section 5 expands or shrinks can be made
.
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.High recovery metal outer 51 is memory alloy film or memory-alloy mesh.The thickness of described high recovery metal level is 0.2-0.4 mm.
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 this 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
'smanufacture 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 resilient flexible outer 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 this utility model catheter 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 be communicated with this inner cavity of tube body, this utricule section is 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: the default utricule part on described pipe shaft, as utricule internal layer; Cover the high recovery metal level of described default utricule outer wall; And the flexible resilient being covered in this 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 3, is characterized in that, described memory alloy film or memory-alloy mesh in a tubular form, adopt titanium-nickel alloy, gold-cadmium alloy or copper-zinc alloy.
6. catheter as claimed in claim 2, is characterized in that, described flexible resilient skin is a kind of forming materials in selection elastic polyurethane, silicone rubber and Heveatex.
7. 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.
8. 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.
9. 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.
10. catheter as claimed in claim 9, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839534.9U CN204428599U (en) | 2014-12-26 | 2014-12-26 | Without capsule indwelling catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839534.9U CN204428599U (en) | 2014-12-26 | 2014-12-26 | Without capsule indwelling catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204428599U true CN204428599U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420839534.9U Active CN204428599U (en) | 2014-12-26 | 2014-12-26 | Without capsule indwelling catheter |
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| Country | Link |
|---|---|
| CN (1) | CN204428599U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474625A (en) * | 2014-12-26 | 2015-04-01 | 湛江市事达实业有限公司 | Bag-free indwelling catheter |
| DE102022203586A1 (en) | 2021-11-04 | 2023-05-04 | B. Braun Melsungen Aktiengesellschaft | Medical product and method for manufacturing a product, in particular a medical product |
-
2014
- 2014-12-26 CN CN201420839534.9U patent/CN204428599U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474625A (en) * | 2014-12-26 | 2015-04-01 | 湛江市事达实业有限公司 | Bag-free indwelling catheter |
| DE102022203586A1 (en) | 2021-11-04 | 2023-05-04 | B. Braun Melsungen Aktiengesellschaft | Medical product and method for manufacturing a product, in particular a medical product |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |