CN104922783A - Catheterization device and assembling method thereof - Google Patents
Catheterization device and assembling method thereof Download PDFInfo
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- CN104922783A CN104922783A CN201510320866.5A CN201510320866A CN104922783A CN 104922783 A CN104922783 A CN 104922783A CN 201510320866 A CN201510320866 A CN 201510320866A CN 104922783 A CN104922783 A CN 104922783A
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Abstract
The invention provides a catheterization device and an assembling method thereof. The catheterization device comprises a urinal catheter and an expansion detection rod. The urinal catheter comprises a urinal catheter head-end portion, an air bag section, a pipe cavity section, a detecting rod insertion section and an air bag liquid filling section. The expansion detection rod comprises a detecting rod head-end portion, a detecting rod body section and a detecting rod tail-end portion. The inner diameter of the pipe cavity section is greater than the outer diameter of the detecting rod body section. The inner diameter of the detecting rod insertion section is smaller than the outer diameter of the detecting rod tail-end portion. The detecting rod head-end portion is of a conical structure. At least one hole is formed in the tail end of the urinal catheter head-end portion and is used for the detecting rod head-end portion to penetrate through the urinal catheter head-end portion and guide urine. The inner diameter of the air bag section is greater than the outer diameter of the pipe cavity section, and the air bag section is used for fixing the urinal catheter inside the urinary bladder. The detecting rod head-end portion is bent into an arc-shaped structure. By means of the catheterization device and the assembling method, the urinal catheter can be smoothly inserted into urethra of a patient, and patient injury is smaller.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments for urethral catheterization, particularly relate to a kind of o urethral catheterization device.
Background technology
Clinically, many times need to carry out urethral catheterization disposal to patient.Such as, when causing patient not leave the bed in various surgery and when postoperative, Patients with Prostatic Hyperplasia occurs seriously to urinate ill symptoms, because of the various state of an illness urinating, all urethral catheterization is needed and indwelling catheter.Application Foley catheter can solve patient can not the problem of voluntary micturition.
At present, clinical Foley catheter used is generally soft tube, and it can insert bladder by per urethra.Urinary catheter cephalic par sidewall is provided with two side openings, flows out for urine.Urinary catheter tail end connects urinal and collects urine.Catheter model divides 6F-30F totally 13 models according to external diameter girth.F number is exactly the millimeter of urinary catheter outer perimeter, and reduction formula is F=π D, and rough conversion is exactly F=3 times of overall diameter (millimeter).Now, length thin with the tube chamber of catheter is about 40cm, limits its flexible Application clinically.
When running into the situation such as urethral stricture, the structural change of prostate Posterior urethral, there will be the problem of urethral catheterization difficulty.If adopt the mode repeatedly inserting catheter to solve this problem, easily formed via, thus increase urethral catheterization difficulty, final urethral catheterization failure.Sometimes, need even to implement bladder on pubis and cut or puncture fistula-building indwelling stoma, this will cause patient suffering can't bear and bear certain fistulation wound risk.
CN104587586A discloses a kind of Multi-functional urethral catheter, comprise catheter body, the fixation balloon I for being fixed in body is arranged with at the indwelling end of catheter body, the fixation balloon II be connected with fixation balloon I by an autonomous channel I is provided with at the drain end of catheter body, independently irrigation channel is embedded with in the tube wall of catheter body, the flushing capsule pipe in sleeve-shaped is arranged with in the periphery that catheter body is positioned at endo-urethral a section, the two ends rinsing capsule pipe are connected with the outer wall of catheter body, the inner chamber rinsing capsule pipe is connected with described irrigation channel, the outer wall rinsing capsule pipe is provided with the flushing hole of flowing out to urethra for flushing liquor, the other end of irrigation channel connects one for the flushing air bag to flushing capsule pipe input flushing liquor.This catheter can reduce the generation of complication for patients, and can alleviate or cure the complication occurred, but cannot solve the problem that catheter inserts difficulty.
CN204337377U discloses a kind of Urology Surgery nursing o urethral catheterization device, comprise catheter, urethral catheterization head, guiding core, sucker, mozzle, air bag, water conservancy diversion bottle, evacuating catheter, described catheter leading portion is provided with urethral catheterization head, catheter inside is provided with guide wire, guiding core is provided with in guide wire, guiding core end is provided with finger ring, catheter is provided with fixing band on the upside of end, fixing band one end is provided with sucker, catheter is provided with mozzle on the downside of end, mozzle lower end is provided with water conservancy diversion bottle, water conservancy diversion bottle lower end is provided with evacuating catheter, water conservancy diversion bottle is provided with guide valve on the left of upper end, guide valve is provided with airway, airway one end connects air bag, air bag lower end is provided with exhaustor.This o urethral catheterization device can only increase the guiding urine flow general character, but cannot solve the problem that catheter inserts difficulty.
CN2071960U discloses a kind of hollow urethra probe with elastic force probe, comprises spy core and the inserting tube of band elastic force probe, connects to form visit core between probe and feeler lever by the spring that elasticity is strong.In use, first the hollow urethra probe per urethra of band elastic force probe is inserted bladder, then extract spy core, insert a catheter by inserting tube, in indwelling bladder, constant drainage urine.Although catheter can insert by said apparatus smoothly, the spy cored structure of its band elastic force probe is complicated, and inserting tube is made up of hard material, and directly contacts with patient, very large to patient's damage.
In sum, catheter can be inserted patient's urethra smoothly and the o urethral catheterization device less to patient's damage in the urgent need to a kind of.
Summary of the invention
An object of the present invention is to provide a kind of o urethral catheterization device, it can ensure that catheter inserts patient's urethra smoothly and damages less to patient.
Another object of the present invention is to provide a kind of assemble method of o urethral catheterization device, and it is simple to operate, and can ensure that catheter inserts patient's urethra smoothly and damages less to patient.
Present inventor, through studying for many years, surprisingly finds that following technical scheme can realize above-mentioned purpose.
The invention provides a kind of o urethral catheterization device, described o urethral catheterization device comprises catheter and expansion feeler lever;
Described catheter comprises catheter cephalic par, balloon segment, tube chamber section, feeler lever inserting paragraph and air bag fluid injection section; One end of described balloon segment is connected with catheter cephalic par, and the other end of described balloon segment is connected with one end of tube chamber section; The other end of described tube chamber section comprises the first branch end and the second branch end, and the first branch end is connected with described feeler lever inserting paragraph, and the second branch end is connected with air bag fluid injection section;
Described expansion feeler lever comprises feeler lever cephalic par, feeler lever body section, feeler lever tail end; One end of described feeler lever body section is connected with feeler lever cephalic par, and the other end is connected with feeler lever tail end;
Wherein, the total length of described catheter is less than the total length of described expansion feeler lever; The internal diameter of described tube chamber section is greater than the external diameter of described feeler lever body section; The internal diameter of described feeler lever inserting paragraph is less than the external diameter in feeler lever rear portion;
Wherein, described catheter cephalic par is pyramidal structure; The end of described catheter cephalic par is provided with at least one perforate, passes described catheter cephalic par and derive urine for feeler lever cephalic par; The internal diameter of described balloon segment is greater than the external diameter of described tube chamber section, for described catheter is fixed on bladder inside;
Wherein, described feeler lever cephalic par is bent into arcuate structure.
According to o urethral catheterization device of the present invention, preferably, described catheter is set to described feeler lever cephalic par when passing described catheter cephalic par 0.3-1.5cm, and described catheter cephalic par no longer slides to feeler lever tail end direction.
According to o urethral catheterization device of the present invention, preferably, the sidewall of described catheter cephalic par is not provided with perforate, and described catheter cephalic par does not have elasticity, and described balloon segment and tube chamber Duan Jun have elasticity.
According to o urethral catheterization device of the present invention, preferably, described expansion feeler lever is made up of hard material; The end section of described feeler lever cephalic par is tapered, and the end section of described feeler lever cephalic par is passivity structure.
According to o urethral catheterization device of the present invention, preferably, described expansion feeler lever is provided with lubricant layer.
According to o urethral catheterization device of the present invention, preferably, the radian of the arcuate structure of described feeler lever cephalic par is 10-50 degree.
According to o urethral catheterization device of the present invention, preferably, described feeler lever cephalic par is bent into the arcuate structure consistent with curvatura infrapubica urethral shape.
According to o urethral catheterization device of the present invention, preferably, described expansion feeler lever total length is greater than described catheter total length, and the difference of the two is 2-6cm.
According to o urethral catheterization device of the present invention, preferably, the total length of described catheter is 24-32cm, and the total length of described expansion feeler lever is 27-35cm.
The present invention also provides the assemble method of above-mentioned o urethral catheterization device, and described method comprises the steps:
Described expansion feeler lever is inserted described catheter by feeler lever inserting paragraph, described expansion feeler lever is successively through tube chamber section, balloon segment and catheter cephalic par, and pass from the perforate of the end of catheter cephalic par, blocked by described catheter cephalic par when described feeler lever cephalic par passes described catheter cephalic par 0.3-1.5cm, to ensure that described catheter cephalic par no longer slides to feeler lever tail end direction.
Adopt o urethral catheterization device of the present invention, under the guiding of expansion feeler lever, catheter can insert patient's urethra and bladder smoothly; Because the expansion feeler lever of hard is placed in the inside with elastic catheter, imported in the process of bladder by urethra, expansion feeler lever does not directly contact with patient, thus less to patient's damage, alleviate patient's misery, reduce medical worker's work difficulty, clinical meaning is great.In addition, o urethral catheterization device assemble method of the present invention is simple, time saving and energy saving economical.O urethral catheterization device of the present invention is particularly useful for male patient, to solve the problem of its urethral catheterization difficulty.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of o urethral catheterization device of the present invention.
Fig. 2 is expansion feeler lever schematic diagram.
Fig. 3 is the schematic diagram after expansion feeler lever inserts catheter.
Fig. 4 is that o urethral catheterization device enters bladder and schematic diagram after balloon segment fluid injection.
Description of reference numerals is as follows:
1-catheter cephalic par; 2-balloon segment; 3-tube chamber section; 31-first branch end; 32-second branch end; 4-feeler lever inserting paragraph; 5-air bag fluid injection section; 6-feeler lever cephalic par; 7-feeler lever body section; 8-feeler lever tail end; 9-penis; 11-prostate; 12-bladder.
Detailed description of the invention
" pyramidal structure " of the present invention or " taper " are a kind of structures of approximate cone, i.e. large the and structure that top is little in bottom." end section " of the present invention represents the end of object and connects subterminal part." connection " of the present invention is combined together or indirectly the two is connected by connector both representing direct being connected.
< o urethral catheterization device >
O urethral catheterization device of the present invention comprises catheter and expansion feeler lever.O urethral catheterization device of the present invention can also comprise urine collecting bag.
In the present invention, described catheter comprises catheter cephalic par, balloon segment, tube chamber section, feeler lever inserting paragraph and air bag fluid injection section.Balloon segment of the present invention comprises two ends, and one end is wherein connected with catheter cephalic par, and the other end is connected with one end of tube chamber section.Tube chamber section of the present invention comprises two ends, and one end is wherein connected with balloon segment, and the other end then comprises the first branch end and the second branch end, and the first branch end is connected with described feeler lever inserting paragraph, and the second branch end is connected with air bag fluid injection section.As preferably, the other end of tube chamber section of the present invention is only divided into the first branch end and the second branch end, and the first branch end is connected with described feeler lever inserting paragraph, and the second branch end is connected with air bag fluid injection section.
In the present invention, described expansion feeler lever comprises feeler lever cephalic par, feeler lever body section, feeler lever tail end.Feeler lever body section of the present invention comprises two ends, and one end is wherein connected with feeler lever cephalic par, and the other end is connected with feeler lever tail end.
According to the preferred embodiment of the invention, described catheter can be set to described feeler lever cephalic par and pass described catheter cephalic par 0.3-1.5cm, be preferably 0.5-1.2cm, when being more preferably 0.8-1.0cm, described catheter cephalic par no longer slides to feeler lever tail end direction; That is described feeler lever cephalic par is blocked by described catheter cephalic par, described catheter cephalic par is prevented to slide to feeler lever tail end direction.
According to the preferred embodiment of the invention, the total length of described expansion feeler lever is greater than the total length of described catheter; Such as, the difference of the former with the latter is 2-6cm, is preferably 3-5cm.The internal diameter of described tube chamber section is greater than the external diameter of described feeler lever body section; Such as, the difference of the former with the latter is 0.01-1mm, is preferably 0.05-0.5mm, is more preferably 0.1-0.2mm.The internal diameter of described feeler lever inserting paragraph is less than the external diameter in feeler lever rear portion; Such as, the latter and the former difference are 0.1-20mm, are preferably 0.5-15mm, are more preferably 1-10mm.Feeler lever inserting paragraph can be made like this to block feeler lever rear portion, thus stop described catheter cephalic par to slide to feeler lever tail end direction further.
In the present invention, urine collecting bag is connected with the feeler lever inserting paragraph of catheter.After o urethral catheterization device inserts bladder, expansion feeler lever being extracted out from catheter, then urine collecting bag being connected with the feeler lever inserting paragraph of catheter, for collecting urine.Urine collecting bag of the present invention can use known in the art those, repeat no more here.
< catheter >
In the present invention, the total length of described catheter can be 24-32cm, is preferably 24-30cm, is more preferably 25-28cmcm.The building block of catheter of the present invention and annexation are as previously mentioned.Catheter cephalic par is pyramidal structure.As is known to those skilled in the art, pyramidal structure of the present invention refers to the shape of catheter catheter cephalic par in a state of use, and such pyramidal structure is the structure of approximate cone.The length of catheter cephalic par of the present invention can be 0.3-1.5cm; Be preferably 0.5-1.2cm; Be more preferably 0.8-1.0cm.
In catheter of the present invention, the end (also can be called top) of described catheter cephalic par is provided with at least one perforate, passes described catheter cephalic par and derive urine for feeler lever cephalic par.According to a specific embodiment of the present invention, the end of described catheter cephalic par of the present invention is provided with at least two or at least three perforates, and the perforate of one of them is used for feeler lever cephalic par and passes described catheter cephalic par, and whole perforate is for deriving urine.According to another detailed description of the invention of the present invention, the end of described catheter cephalic par of the present invention is provided with a perforate, passes described catheter cephalic par and for deriving urine for feeler lever cephalic par.
In catheter of the present invention, preferably, the sidewall of described catheter cephalic par is not provided with perforate.Such design can ensure not spill from sidewall at fluid injection stage liquid, and balloon segment expands smoothly and is stuck in intravesical.Such design also can ensure in the urethral catheterization stage, and the liquid of balloon segment does not overflow from sidewall and balloon segment is not shunk.As preferably, catheter cephalic par of the present invention does not have elasticity.Catheter cephalic par of the present invention can be made up of inelastic materials or be made up of inelastic materials and elastomeric material.As preferably, balloon segment of the present invention and tube chamber Duan Jun have elasticity.Balloon segment of the present invention and tube chamber section can be made by elastomeric material.Inelastic materials of the present invention comprises plastics or fibrous material, is preferably fibrous material, and such fibrous material is easy to be solidified does not have elastic catheter cephalic par to be formed in elastomeric material, simplifies catheter preparation technology.Elastomeric material of the present invention includes but not limited to natural rubber, polrvinyl chloride or silicone rubber; Be preferably silicone rubber.
In catheter of the present invention, under non-topping up state, balloon segment length is 1-4cm, is preferably 1.5-2.5cm; Be full of under liquid condition, balloon segment can be spherical or ellipsoid shape.The internal diameter of described balloon segment is greater than the external diameter of described tube chamber section, and described balloon segment is used for described catheter to be fixed on bladder inside.The air bag of balloon segment receiving fluids amount can be 0.1-20ml, is preferably 1-15ml, is more preferably 3-10ml.The internal diameter of balloon segment of the present invention refers to its internal diameter under underfill liquid condition.After catheter enters bladder by urethra, inject liquid to balloon segment, balloon segment expands and makes its internal diameter be greater than the external diameter of described tube chamber section, is also greater than the diameter of opening of bladder, thus is blocked by catheter, avoid it to deviate from from urethra; When catheter extracted by needs, by all or part of discharge of liquid comprised in the catheter of balloon segment, balloon segment is shunk, thus it is extracted from bladder and urethra.Liquid of the present invention can be distilled water, normal saline or urine etc.Airbag structure of the present invention be well known to those skilled in the art those, repeat no more here.
In catheter of the present invention, described tube chamber section can be round tube shape structure, and its internal diameter can select different model according to the urethra diameter of patient.The front end of described tube chamber section is connected with catheter cephalic par; The end of described tube chamber section is divided into two branch end, is connected respectively with feeler lever inserting paragraph and air bag fluid injection section.The length of tube chamber section of the present invention can be 18-24cm; Be preferably 20-23cm.
In catheter of the present invention, described feeler lever inserting paragraph can be cylindrical shape or taper, is preferably taper.As this area can be understood, such taper is approximate cone shape.Feeler lever inserting paragraph of the present invention is preferably coaxial setting with tube chamber section, so that expansion feeler lever inserts catheter smoothly.
In catheter of the present invention, described air bag fluid injection section is used for injecting liquid in catheter, so that balloon segment expands and is fixed on bladder inside.Under normal circumstances, air bag fluid injection section is closed; Only just open when fluid injection.Valve known in the art or stopper can be adopted to realize above-mentioned functions.
< expands feeler lever >
In the present invention, the total length of described expansion feeler lever can be 27-35cm, is preferably 28-32cm.The building block of expansion feeler lever of the present invention and annexation are as previously mentioned.Expansion feeler lever of the present invention is preferably integrated structure.
Expansion feeler lever of the present invention is preferably made up of hard material.Hard material of the present invention includes but not limited to hard synthetic plastic, woodwork or metal, is preferably metal, such as rustless steel.In the present invention, described expansion feeler lever is provided with lubricant layer, so that expansion feeler lever inserts or extracts catheter.Lubricant can be applied in described expansion feeler lever and be formed by lubricant layer.Lubricant of the present invention includes but not limited to paraffin oil, lignocaine, Ao Kayin gel or silver ion gel, is preferably paraffin oil.
In expansion feeler lever of the present invention, described feeler lever cephalic par preferably with the mating shapes of described catheter cephalic par.The end section of feeler lever cephalic par is preferably pyramidal structure.The end section of feeler lever cephalic par is preferably passivity structure, to avoid damage catheter and patient's urethra.
In expansion feeler lever of the present invention, described feeler lever cephalic par is bent into arcuate structure.Preferably, described feeler lever cephalic par is bent into the arcuate structure consistent with curvatura infrapubica urethral shape.The radian of above-mentioned arcuate structure can be 10-50 degree, is preferably 15-40 degree, is more preferably 20-30 degree.Arranging like this can ensure that expansion feeler lever more successfully guides catheter to enter bladder by urethra.Feeler lever cephalic par length of the present invention can be 3-6cm; Be preferably 4-5cm.
In expansion feeler lever of the present invention, described feeler lever body section can be cylindric.The length of described feeler lever body section can be 18-24cm; Be preferably 20-23cm.In expansion feeler lever of the present invention, described feeler lever tail end shape is not particularly limited, but the external diameter of its widest part is greater than the external diameter of feeler lever body section.Such as, the difference of the former with the latter is 0.1-3cm, is preferably 0.5-1cm.
The assemble method > of < o urethral catheterization device
The present invention also provides the assemble method of above-mentioned o urethral catheterization device, described method comprises the steps: described expansion feeler lever to insert described catheter by feeler lever inserting paragraph, described expansion feeler lever successively through tube chamber section, balloon segment and catheter cephalic par, and passes from the perforate of the end of catheter cephalic par.When described feeler lever cephalic par passes described catheter cephalic par 0.3-1.5cm, be preferably 0.5-1.2cm, when being more preferably 0.8-1.0cm, described catheter cephalic par no longer slides to feeler lever tail end direction, thus forms the o urethral catheterization device assembled; That is described feeler lever cephalic par is blocked by described catheter cephalic par, described catheter cephalic par is prevented to slide to feeler lever tail end direction.
According to one embodiment of the invention, smear lubricant to form lubricant layer at described expansion feeler lever, then the expansion feeler lever with lubricant layer is inserted described catheter.According to another embodiment of the invention, first lubricant is injected catheter, then described expansion feeler lever is inserted catheter.According to another embodiment of the invention, smear lubricant to form lubricant layer at described expansion feeler lever; Lubricant is injected catheter; Then the expansion feeler lever with lubricant layer is inserted described catheter.Above-mentioned lubricant as previously mentioned, repeats no more here.
The present invention also provides the using method of above-mentioned o urethral catheterization device, except comprising above-mentioned number of assembling steps, the o urethral catheterization device assembled can also be comprised the steps: to enter bladder by urethra; By air bag fluid injection section, liquid is injected the balloon segment of catheter, balloon segment is stuck in intravesical after expanding; After being extracted from catheter by expansion feeler lever, connect urine collecting bag in feeler lever inserting paragraph.For the o urethral catheterization device assembled of the present invention, under expansion feeler lever guides, catheter can be crossed urethral stricture portion smoothly and enter bladder.The amount of liquid injected is 6-10ml, is preferably 8-9ml.Liquid of the present invention comprises distilled water, normal saline, urine etc.As preferably, before being extracted from catheter by expansion feeler lever, in catheter, inject a small amount of lubricant by air bag fluid injection section, expansion feeler lever can be made so more successfully to extract.
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
embodiment 1
Fig. 1-3 gives a kind of o urethral catheterization device of the present invention.O urethral catheterization device of the present invention comprises catheter (see Fig. 1) and expansion feeler lever (see Fig. 2).Catheter of the present invention comprises catheter cephalic par 1, balloon segment 2, tube chamber section 3, feeler lever inserting paragraph 4 and air bag fluid injection section 5.Balloon segment 2 comprises two ends, and wherein one end is connected with catheter cephalic par 1, and the other end is connected with one end of tube chamber section 3.Described tube chamber section 3 comprises two ends, and wherein one end is connected with described balloon segment 2; The other end comprises the first branch end 31 and the second branch end 32, first branch end 31 is connected with described feeler lever inserting paragraph 4, and the second branch end 32 is connected with air bag fluid injection section 5.The total length of above-mentioned catheter is 25cm.Wherein, the length of catheter cephalic par 1 is 1cm; The length of balloon segment 2 is 2cm; The length of tube chamber section 3 is 20cm; The length of feeler lever inserting paragraph 4 is 2cm; The length of air bag fluid injection section 5 is 2cm.Catheter cephalic par 1 is pyramidal structure, and end is provided with a perforate, passes catheter cephalic par 1 for feeler lever cephalic par 6, also for deriving urine.The internal diameter of balloon segment 2 is greater than the internal diameter of tube chamber section 3, and balloon segment 2 is for being fixed on intravesical by catheter.The sidewall of catheter cephalic par 1 does not arrange perforate, and catheter cephalic par 1 does not have elasticity, is freezed solidly in silicone rubber formed by fibrous material, and balloon segment 2 and tube chamber section 3 all have elasticity, are made up of silicone rubber.Adopt above-mentioned design, when ensureing that the distance that feeler lever cephalic par 6 passes catheter cephalic par 1 is 1.0cm (namely feeler lever cephalic par 6 exposes 1.0cm), catheter cephalic par 1 no longer slides to feeler lever tail end 8 direction.Feeler lever inserting paragraph 4 is taper, and feeler lever inserting paragraph 4 and tube chamber section 3 are coaxially arranged, so that expansion feeler lever inserts catheter smoothly.Air bag fluid injection section 5 for injecting liquid in catheter, with stopper on it, with realize close or opening function.
Expansion feeler lever of the present invention is made up of hard material rustless steel, comprises feeler lever cephalic par 6, feeler lever body section 7, feeler lever tail end 8.Feeler lever body section 7 comprises two ends, and wherein one end is connected with feeler lever cephalic par 6, and the other end is connected with feeler lever tail end 8.The total length of above-mentioned expansion feeler lever is 30cm.Wherein, the length of feeler lever cephalic par 6 is 5cm; The length of feeler lever body section 7 is 20cm; The length of feeler lever tail end 8 is 5cm.Feeler lever cephalic par 6 is bent into arcuate structure, and bending radian is 30 degree.The end section of feeler lever cephalic par 6 is tapered, and is passivity structure.Expansion feeler lever can be avoided like this to damage catheter and injured patient's urethra.Feeler lever body section 7 is cylindric, and feeler lever tail end 8 is approximate ellipsoid shape, and the former external diameter is less than the latter.
The internal diameter of the tube chamber section 3 of catheter of the present invention, slightly larger than the external diameter of feeler lever body section 7, is conducive to expansion feeler lever like this and inserts catheter.The internal diameter of feeler lever inserting paragraph 4 is less than the external diameter in feeler lever rear portion 8, can control expansion feeler lever so further and expose size.
Fig. 4 shows catheter of the present invention and enters bladder and schematic diagram after balloon segment fluid injection.Expansion feeler lever smears lubricant to form lubricant layer, then the expansion feeler lever with lubricant layer is inserted catheter by feeler lever inserting paragraph 4, expansion feeler lever successively through tube chamber section 3, balloon segment 2 and catheter cephalic par 1, and passes from the perforate of the end of catheter cephalic par 1.When the distance that feeler lever cephalic par 6 passes catheter cephalic par 1 is 1.0cm, feeler lever cephalic par 6 is blocked by catheter cephalic par 1, and catheter cephalic par 1 no longer slides to the direction of feeler lever tail end 8, thus forms the o urethral catheterization device assembled.
The o urethral catheterization device assembled is entered in bladder 12 by the urethra (not shown) of penis 9 and prostate 11.Under expansion feeler lever guides, catheter can be crossed the narrow of urethra smoothly thus enter in bladder 12.By air bag fluid injection section 5,8ml normal saline is injected the balloon segment 2 of catheter, balloon segment 2 is stuck in bladder 12 after expanding.Then, expansion feeler lever is extracted from catheter.Feeler lever inserting paragraph 4 connects urine collecting bag, for collecting urine.
O urethral catheterization device of the present invention is to 11 routine patient's success urethral catheterization: 1 example anaesthetizes rear surgical doctor for gastrointestinal procedures cannot insert urinary catheter; 2 routine patients are critical, cannot insert urinary catheter after moving in ICU ward, and suprapubic cystotomy will increase the weight of the state of an illness; The common urinary catheter of 3 routine Patients with Prostatic Hyperplasia cannot insert; 2 examples were once passed through after urethra prostate gland electrotomy and again urine retention were occurred, and urethral anatomy structure changes, and cannot insert urinary catheter; 1 example is row post-prostatectomy generation urine retention once, and urethral anatomy structure changes and cannot insert urinary catheter; 2 examples repeatedly try urethral catheterization via former at basic hospital.Utilize device of the present invention urethral catheterization success also indwelling catheter all smoothly, patient is satisfaction very.
Claims (10)
1. an o urethral catheterization device, is characterized in that, described o urethral catheterization device comprises catheter and expansion feeler lever;
Described catheter comprises catheter cephalic par, balloon segment, tube chamber section, feeler lever inserting paragraph and air bag fluid injection section; One end of described balloon segment is connected with catheter cephalic par, and the other end of described balloon segment is connected with one end of tube chamber section; The other end of described tube chamber section comprises the first branch end and the second branch end, and the first branch end is connected with described feeler lever inserting paragraph, and the second branch end is connected with air bag fluid injection section;
Described expansion feeler lever comprises feeler lever cephalic par, feeler lever body section and feeler lever tail end; One end of described feeler lever body section is connected with feeler lever cephalic par, and the other end is connected with feeler lever tail end;
Wherein, the total length of described catheter is less than the total length of described expansion feeler lever; The internal diameter of described tube chamber section is greater than the external diameter of described feeler lever body section; The internal diameter of described feeler lever inserting paragraph is less than the external diameter in feeler lever rear portion;
Wherein, described catheter cephalic par is pyramidal structure; The end of described catheter cephalic par is provided with at least one perforate, passes described catheter cephalic par and derive urine for feeler lever cephalic par; The internal diameter of described balloon segment is greater than the external diameter of described tube chamber section, and described balloon segment is used for described catheter to be fixed on bladder inside;
Wherein, described feeler lever cephalic par is bent into arcuate structure.
2. o urethral catheterization device according to claim 1, is characterized in that, described catheter is set to described feeler lever cephalic par when passing described catheter cephalic par 0.3-1.5cm, and described catheter cephalic par no longer slides to feeler lever tail end direction.
3. o urethral catheterization device according to claim 1, is characterized in that, the sidewall of described catheter cephalic par is not provided with perforate, and described catheter cephalic par does not have elasticity, and described balloon segment and tube chamber Duan Jun have elasticity.
4. the o urethral catheterization device according to any one of claim 1-3, is characterized in that, described expansion feeler lever is made up of hard material; The end section of described feeler lever cephalic par is tapered, and the end section of described feeler lever cephalic par is passivity structure.
5. o urethral catheterization device according to claim 4, is characterized in that, described expansion feeler lever is coated with lubricant layer.
6. o urethral catheterization device according to claim 1, is characterized in that, the radian of the arcuate structure of described feeler lever cephalic par is 10-50 degree.
7. o urethral catheterization device according to claim 6, is characterized in that, described feeler lever cephalic par is bent into the arcuate structure consistent with curvatura infrapubica urethral shape.
8. o urethral catheterization device according to claim 1, is characterized in that, described expansion feeler lever total length is greater than described catheter total length, and the difference of the two is 2-6cm.
9. o urethral catheterization device according to claim 8, is characterized in that, the total length of described catheter is 24-32cm, and the total length of described expansion feeler lever is 27-35cm.
10. the assemble method of the o urethral catheterization device according to any one of claim 1-9, is characterized in that, described assemble method comprises the steps:
Described expansion feeler lever is inserted described catheter by feeler lever inserting paragraph, described expansion feeler lever is successively through tube chamber section, balloon segment and catheter cephalic par, and pass from the perforate of the end of catheter cephalic par, blocked by described catheter cephalic par when described feeler lever cephalic par passes described catheter cephalic par 0.3-1.5cm, to ensure that described catheter cephalic par no longer slides to feeler lever tail end direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510320866.5A CN104922783B (en) | 2015-06-12 | Urethral catheterization device and its assemble method |
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| CN201510320866.5A CN104922783B (en) | 2015-06-12 | Urethral catheterization device and its assemble method |
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| CN104922783A true CN104922783A (en) | 2015-09-23 |
| CN104922783B CN104922783B (en) | 2018-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109044257A (en) * | 2018-06-28 | 2018-12-21 | 袁丹 | Urethra visible instrument, visual urethral catheterization device and its application method |
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