CN102908715B - Contact limiting type double-saccule three-cavity catheter - Google Patents
Contact limiting type double-saccule three-cavity catheter Download PDFInfo
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- CN102908715B CN102908715B CN201210435878.9A CN201210435878A CN102908715B CN 102908715 B CN102908715 B CN 102908715B CN 201210435878 A CN201210435878 A CN 201210435878A CN 102908715 B CN102908715 B CN 102908715B
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Abstract
The invention relates to a contact limiting type double-saccule three-cavity catheter, and belongs to the technical field of medical assisting instruments. The three-cavity catheter is characterized in that a tube body is made of polymer blend; the outer walls of the two saccules of the catheter become thinner and thinner from the pointed end to the tail end of the three-cavity catheter; and the two saccules are symmetrically arranged on two sides of the tube body and between the pointed end and a drain tube cavity hole. The catheter is used according to the method that water injection or gas injection can be carried out as long as urine enters into the catheter; the two saccules of the catheter, which are arranged behind a bladder, tilt to the tail end in a water injection or gas injection state; the space formed between the saccule and the bottom of a bladder wall can sufficiently accommodate a vesical trigone; the catheter can be fixed in the bladder continuously without pressing the vesical trigone and ureter ports; a drain tube cavity drainage hole is adjacent to the ureter ports, so as to evacuate urine promptly and radically; and the pointed end of the catheter, a flushing pipe cavity outlet hole, a flushing pipe cavity, the two saccules, feed-through saccule water injection or gas injection tube cavities, the drain tube cavity drainage hole, a drain tube cavity, an anti-reflow valve and an excretion cavity tapered interface are connected to form an integral piece through the tube body.
Description
Technical field
The present invention relates to the two sacculus three-cavity catheters of a kind of Restricted Contact type, belong to medical auxiliary apparatus technical field.
Background technology
Need insert catheter, indwelling catheter in medical domain internal disease, surgical diseases, obstetrical and gynecological disease, orthopaedic disease and urology department disease.Catheter is a kind of conventional medical auxiliary apparatus, can insert bladder so that guiding urine flows out via sick urethra.Catheter inserts after bladder, has a sacculus near catheter head end, with so that catheter fixedly be retained in intravesical and be difficult for deviating from, the drain part connection urinal collection urine of catheter.Indwelling catheter FAQs has urinary tract infection, inadequate drainage, difficulty in decannulation, cystospasm or contracture etc., but modal complication is urinary system infection.A delta-shaped region of fundus of bladder inner face, between two ureteric orificies and internal urethral orifice.Trigone of bladder is the predilection site of tumor, tuberculosis and inflammation, is cystoscopic key area, has important clinical meaning.
Between existing sacculus three-cavity catheter atria conduction hole and fundus of bladder, there is 3-5cm distance, and be separated with a sacculus, have all the time part urine to continue to residue in bladder bottom; Intravesical urine is generally aseptic, but urine is also the applicable environment of antibacterial simultaneously, easily breed bacteria; When urine cannot be emptied completely, urine is stayed bladder bottom, and the antibacterial of leaving generates, also just easily inflammation; Catheter contacts with remaining urine in intravesical as foreign body prolonged stay, easily by calculus mineralization in urinary catheter end, form calculus; Rounded after sacculus water-filling or inflation, airbag wall continues to stimulate friction trigone of bladder, brings out inflammation, and patient occurs that frequent micturition, urgent micturition, hypogastric region suppress swollen discomfort; Urethra relaxes and causes leakage of urine, old women, and intracranial lesion, at the bottom of patient's basin of paraplegia, flesh and sphincter of urethra relax and cause leakage of urine; In addition, long term indwelling catheter, makes bladder for a long time in hollow state, and detrusor of bladder disuse atrophy, causes contracture of bladder; Traditional catheter using method, is shown in after urine and needs to insert 3cm left and right, could water filling or gas injection.
Summary of the invention
The object of the invention is to overcome existing sacculus three-cavity catheter inserts in body, after seeing urine, need to insert again 3cm left and right, ability water filling or inflation, between saccule urinary catheter atria conduction hole and fundus of bladder, there is 3-5cm distance, and be separated with a sacculus, have all the time part urine to continue to residue in bladder bottom, breed bacteria, be inflamed, form calculus, cause leakage of urine, airbag wall continues to stimulate friction trigone of bladder, brings out inflammation, and patient occurs that frequent micturition, urgent micturition, hypogastric region suppress swollen discomfort, in addition, long term indwelling catheter, make bladder for a long time in hollow state, detrusor of bladder disuse atrophy, cause the defects such as contracture of bladder, provide a kind of Restricted Contact type two sacculus three-cavity catheters, this catheter is shown in that urine gets final product water filling or inflation after inserting bladder, not only fixation, do not deviate from, and trigone of bladder is not produced to stimulation, residual without urine, without irritative symptoms of bladder, without leakage of urine phenomenon, the bladder of two sacculus filling inanitions that expand after water filling or gas injection, make bladder in half tension state, thereby dissolve the multiple complications that existing saccule urinary catheter produces.
For achieving the above object, the technical scheme adopting is: the two sacculus three-cavity catheters of a kind of Restricted Contact type, comprise body, most advanced and sophisticated, rinse tube chamber liquid outlet, rinse tube chamber, two sacculus, logical sacculus water filling or gas injection tube chamber, excretion tube chamber conduction hole, excretion tube chamber, sacculus water filling or gas injection anti back-flow valve, atria cone-shaped interface, rinse chamber cone-shaped interface, rinse chamber switch composition, it is characterized in that: described body is to be manufactured by a kind of blend polymer, it is symmetrical that described flushing tube chamber liquid outlet is placed in described in the either side body inclined-plane at described tip and described excretion tube chamber conduction hole interval sacculus section body, by rinsing tube chamber and rinsing chamber cone-shaped interface connection, flushing chamber cone-shaped interface can play the adapter effect of catheter, it can be connected to other device, rinse chamber switch and be placed in flushing chamber cone-shaped interface, when use, can block described flushing tube chamber completely, described flushing chamber switch can separate with described body, the lateral wall of two sacculus of described catheter is from most advanced and sophisticated caudad the sacculus lateral wall of attenuation and full the sacculus lateral wall formation of thin layer gradually, sacculus medial wall is described body, and be placed in symmetrically the both sides of the described body between described tip and described excretory duct lumen pore, after the logical sacculus water filling of described catheter or the gas injection tube chamber either side body by the excretory duct lumen pore both sides of described catheter, two identical logical sacculus water filling or the gas injection tube chambers of isometric caliber of formation that are divided into two communicate with close described catheter sacculus respectively, described catheter using method, see that urine gets final product water filling or inflation, described catheter is placed under retrovesical two sacculus note water filling or gas injection state separate, caudad tilt.Trigone of bladder is large enough to hold in the framework space of the air bag tilting and catheter and wall of urinary bladder bottom composition, described atria conduction hole, and airbag wall does not contact with trigone of bladder or have a little contact, sustainable fixing described catheter is in intravesical, do not deviate from, described catheter is placed under retrovesical two sacculus note water filling or gas injection state and does not oppress trigone of bladder, do not oppress ureteric orifice, described catheter is placed under retrovesical two sacculus note water filling or gas injection state, excretion tube chamber conduction hole and ureteric orifice adjoin, the normal urine of intravesical and the abnormal urine of pathological changes, thoroughly emptying in time, intravesical is without remaining, described catheter is placed in retrovesical two sacculus note water filling or gas injection state retrofilling in emptying bladder cavity, make tunica muscularis vesicae urinariae in tension state, avoid bladder for a long time in hollow state, cause contracture of bladder, the tip of described catheter, rinse tube chamber liquid outlet, rinse tube chamber, two sacculus, logical sacculus water filling or gas injection tube chamber, excretion tube chamber conduction hole, excretion tube chamber, sacculus water filling or gas injection anti back-flow valve, atria cone-shaped interface, rinse chamber cone-shaped interface and be linked to be a single piece by body.
Further, after described logical sacculus water filling or the gas injection tube chamber either side body by the excretion tube chamber conduction hole both sides of described catheter, being divided into two forms two identical logical sacculus water filling or gas injection tube chambers of isometric caliber and communicates with close described catheter sacculus respectively, can wait simultaneously press to described two sacculus water fillings or gas injection when water filling or gas injection.
Further, after described two sacculus water fillings or gas injection, can automatically caudad tilt simultaneously, separate, sacculus is connected with body with the both sides sacculus end puts described in vertical dimension that C orders is greater than excretion tube chamber conduction hole distance that what the bottom A point of the sacculus forming was ordered with B be wired to.
Described catheter is placed under retrovesical two sacculus note water filling or gas injection state, because excretion tube chamber conduction hole is adjacent with ureteric orifice, by effects such as absorption, negative pressure, siphons, can make intravesical normal urine and the abnormal urine drainage of pathological changes to external completely, noresidue.
Further, the body portion of described catheter can be pushed by one and moldable material is made, for example, by a kind of polyolefin, as polyethylene (PE) or polypropylene (PP), or a kind of poly copolymer, as ethylene vinyl acetate (EVA) or polrvinyl chloride (PVC) or Polyvinylidene or polyurethane (PU) or silicon are made.By injection-molded, the combination of extrusion molding and/or blow molding, can make a single piece by the tip of described catheter, flushing tube chamber liquid outlet, flushing tube chamber, two sacculus, logical sacculus water filling or gas injection tube chamber, excretion tube chamber conduction hole, excretion tube chamber, sacculus water filling or gas injection anti back-flow valve, atria cone-shaped interface, flushing chamber cone-shaped interfaces by same material.
Further, in order to obtain good mechanical performance, obtain enough hardness for desired use, can the thorough sterilizing by known sterilizing methods, for the preparation of with the Durometer A hardness scope of material of the body portion that forms described catheter be 75-85, preferable range is 78-82; And there is radioresistance can tolerate at least 50kGy and to there is no degraded; Also should have and exceed 90 ℃, preferably exceed 110 ℃, and most preferably be the melt temperature that exceedes 130 ℃; For the preparation of demonstrating low elasticity with the material of the body portion that forms described catheter, there is good kink performance, good dimensional stability.
Further, described blend polymer comprise the polyolefin of at least 80 % by weight and wherein may blending medical oil and/or paraffin.
Further, described sacculus water filling or gas injection anti back-flow valve afterbody pipeline and described flushing chamber switch are made by hard material, and described flushing chamber switch can separate with described body.
The invention has the beneficial effects as follows: catheter is most advanced and sophisticated level and smooth, after the human body that patient realizes the two sacculus three-cavity catheters of Restricted Contact type is inserted, see that urine gets final product water filling or inflation, after water filling or gas, two of described head end sacculus evenly swell simultaneously and automatically caudad tilt, trigone of bladder is large enough to hold in the framework space of the sacculus tilting and catheter and wall of urinary bladder bottom composition, described atria conduction hole, and airbag wall does not contact with trigone of bladder or have a little contact, sustainable fixing described catheter is in intravesical, do not deviate from, do not oppress trigone of bladder, and both sides ureteric orifice, excretion tube chamber conduction hole and two ureteric orificies adjoin, the normal urine of intravesical and the abnormal urine of pathological changes, by absorption, negative pressure, the effects such as siphon, can make intravesical normal urine and the abnormal urine drainage of pathological changes to external completely, intravesical noresidue.It is symmetrical that described flushing tube chamber liquid outlet is placed in described in the either side body inclined-plane at described tip and described excretion tube chamber conduction hole interval sacculus section body, by rinsing tube chamber and rinsing chamber cone-shaped interface connection, flushing chamber cone-shaped interface can play the adapter effect of catheter, it can be connected to other device, rinse chamber switch and be placed in flushing chamber cone-shaped interface, when use, can block described flushing tube chamber completely, can inject processing solution to intravesical by this passage, the water conservancy diversion urine of can meeting an urgent need if desired, described catheter is placed in retrovesical two sacculus note water filling or gas injection state retrofilling in emptying bladder cavity, make tunica muscularis vesicae urinariae in tension state, avoid bladder for a long time in hollow state, control contracture of bladder, patient's no pain, clinical practice achieves noticeable achievement.
Accompanying drawing explanation
Below in conjunction with accompanying drawing explanation and the specific embodiment, the invention will be further described:
Fig. 1 is the head end Facad structure schematic diagram of the two sacculus three-cavity catheters of Restricted Contact type of the present invention;
Fig. 2 is the head end side structure schematic diagram of the two sacculus three-cavity catheters of Restricted Contact type of the present invention;
Fig. 3 is the middle cross-sectional view in the head end front of the two sacculus three-cavity catheters of the E section of Fig. 6 Restricted Contact type of the present invention;
Fig. 4 is positive 1/4 cross-sectional view of the head end of the two sacculus three-cavity catheters of the F section of Fig. 6 Restricted Contact type of the present invention;
Fig. 5 is the tail end structural representation of the two sacculus three-cavity catheters of Restricted Contact type of the present invention;
Fig. 6 is the two sacculus three-cavity catheter D place's cross section structure schematic diagrams (amplification) of Fig. 5 Restricted Contact type of the present invention;
Fig. 7 is the structural representation after the two sacculus three-cavity catheter sacculus water fillings of Restricted Contact type of the present invention or gas injection;
In figure: 1-body; 2-tip; 3-sacculus blister cavities; 4-atria conduction hole; 5-atria; 6-logical sacculus water filling or gas injection tube chamber; 7-from head end caudad gradually attenuation sacculus lateral wall; The sacculus lateral wall of 8-full thin layer; 9-logical sacculus water filling or the logical sacculus of gas injection tube chamber hole; 10-logical sacculus water filling or gas injection tube chamber head part prong; Tube chamber after 11-logical sacculus water filling or gas injection tube chamber head part fork; 12-flushing tube chamber; 13-flushing tube chamber liquid outlet; The water filling of 14-sacculus or gas injection anti back-flow valve; 15-atria cone-shaped interface; 16-flushing chamber cone-shaped interface; 17-rinse chamber folder make and break to close; After the water filling of A-sacculus or gas injection at the bottom of sacculus; After the water filling of B-sacculus or gas injection at the bottom of sacculus; C-both sides sacculus is connected end point with body; The transversal profile of D-body; Section in the middle of E-body front; Positive 1/4 section of F-body.
The specific embodiment
At accompanying drawing 1 to accompanying drawing 7, the two sacculus two chamber catheters of a kind of Restricted Contact type, comprise body 1, most advanced and sophisticated 2, rinse tube chamber liquid outlet 13, rinse tube chamber 12, two sacculus, logical sacculus water filling or gas injection tube chamber 6, excretion tube chamber conduction hole 4, excretion tube chamber 5, sacculus water filling or gas injection anti back-flow valve 14, atria cone-shaped interface 15, rinse chamber cone-shaped interface 16, rinsing chamber switch 17 forms, the medial wall of two sacculus is made up of body 1, lateral wall is by caudad forming with the sacculus lateral wall 8 of full thin layer the sacculus lateral wall 7 of attenuation gradually from head end, the lateral wall of two sacculus of described catheter is from most advanced and sophisticated 2 caudad attenuation gradually, and be placed in symmetrically the both sides of the body 1 between tip 2 and excretion tube chamber conduction hole 4, logical sacculus water filling or gas injection tube chamber 6 are by after the either side body 1 of excretory duct lumen pore 4 both sides, be divided into two and form two isometric logical sacculus water fillings or gas injection tube chamber 11 communicates with close described catheter balloon cavity 3 respectively.
After the human body that patient realizes the two sacculus two chamber catheters of Restricted Contact type is inserted, see that urine is available syringe through sacculus water filling or gas injection anti back-flow valve 12 to 3 water filling simultaneously or the inflations of two sacculus blister cavities, sterilized water or gas enter the logical sacculus water filling of pipe or gas injection tube chamber 6 from valve 12, arrive logical sacculus water filling or gas injection tube chamber head part prong 10, be divided into two, tube chamber 11 after isometric logical sacculus water filling or gas injection tube chamber head part fork respectively, arrive two identical sacculus blister cavities 3 with identical pressure and speed, after water filling or gas two of described head end sacculus from head end caudad gradually attenuation sacculus lateral wall 7 and the sacculus lateral wall 8 of full thin layer, evenly swell simultaneously and automatically caudad tilt with identical speed, form two identical water droplet sample sacculus at intravesical, form obstacle, fixing catheter, guarantee that the two sacculus two chamber catheters of Restricted Contact type cannot deviate from from urethra, the framework space that the sacculus 8 tilting forms with wall of urinary bladder bottom under the body 1 of catheter supports, be large enough to hold trigone of bladder, atria conduction hole, and balloon wall does not contact with trigone of bladder or have a little contact, sustainable fixing described catheter is in intravesical, do not deviate from, do not oppress trigone of bladder, and both sides ureteric orifice, excretion tube chamber conduction hole 4 and two ureteric orificies adjoin, the normal urine of intravesical and the abnormal urine of pathological changes, by absorption, negative pressure, the effects such as siphon, can make intravesical normal urine and the abnormal urine of pathological changes by atria 5 completely, atria cone-shaped interface 13 drains into external, intravesical noresidue, atria cone-shaped interface 13 can play the adapter effect of catheter, it can be connected to other device, for example collecting bag, drainage tube, syringe etc.It is symmetrical that described flushing tube chamber liquid outlet 13 is placed in described in described most advanced and sophisticated 2 either side body 1 inclined-plane and described excretion tube chamber conduction hole 4 intervals sacculus section body 1, connect with flushing chamber cone-shaped interface 16 by rinsing tube chamber 12, flushing chamber cone-shaped interface 16 can play the adapter effect of catheter, it can be connected to other device, rinse chamber switch 17 and be placed in flushing chamber cone-shaped interface, when use, can block described flushing tube chamber 12 completely, can inject processing solution to intravesical by this passage, the water conservancy diversion urine of can meeting an urgent need if desired, after two sacculus 7 and 8 water fillings or gas injection, can automatically caudad tilt simultaneously, two sacculus independently that form respectively, what at the bottom of sacculus, A point was ordered with B be wired to sacculus and described both sides sacculus are connected the vertical dimension that the end point C order and are greater than described excretory duct lumen pore distance 4 with body, described catheter is placed in retrovesical two sacculus, 7 and 8 water fillings or gas injection state retrofilling in emptying bladder cavity, make tunica muscularis vesicae urinariae in tension state, avoid bladder for a long time in hollow state, control contracture of bladder, patient's no pain, clinical practice achieves noticeable achievement.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. the two sacculus three-cavity catheters of Restricted Contact type, comprise body, most advanced and sophisticated, rinse tube chamber liquid outlet, rinse tube chamber, two sacculus, logical sacculus water filling or gas injection tube chamber, excretion tube chamber conduction hole, excretion tube chamber, sacculus water filling or gas injection anti back-flow valve, atria cone-shaped interface, rinse chamber cone-shaped interface, rinse chamber switch composition, it is characterized in that: described body is to be manufactured by a kind of blend polymer, the lateral wall of two sacculus of described catheter by from most advanced and sophisticated caudad gradually the sacculus lateral wall of the sacculus lateral wall of attenuation and full thin layer form, medial wall is body, and be placed in symmetrically the both sides of the body between most advanced and sophisticated and excretion tube chamber conduction hole, after the logical sacculus water filling of described catheter or the gas injection tube chamber arbitrary body by the both sides of the excretion tube chamber conduction hole of described catheter, be divided into two and form two isometric logical sacculus water fillings or gas injection tube chamber and communicate with the chamber of close catheter sacculus respectively, it is symmetrical that described flushing tube chamber liquid outlet is placed in described in the either side body inclined-plane at described tip and described excretion tube chamber conduction hole interval sacculus section body, the tip of described catheter, rinse tube chamber liquid outlet, rinse tube chamber, two sacculus, logical sacculus water filling or gas injection tube chamber, excretion tube chamber conduction hole, excretion tube chamber, sacculus water filling or gas injection anti back-flow valve, atria cone-shaped interface, rinsing chamber cone-shaped interface is connected by described body.
2. two sacculus three-cavity catheters of a kind of Restricted Contact type according to claim 1, it is characterized in that: after described logical sacculus water filling or the gas injection tube chamber either side body by the both sides of the excretion tube chamber conduction hole of described catheter, being divided into two forms two identical logical sacculus water filling or gas injection tube chambers of isometric caliber and communicates with close described catheter balloon cavity respectively, can be simultaneously when water filling or gas injection isobaric with identical speed to described two balloon cavity water fillings or gas injection.
3. according to the two sacculus three-cavity catheters of a kind of Restricted Contact type described in claim 1 or 2, it is characterized in that: after described two sacculus water fillings or gas injection, can automatically caudad tilt simultaneously, two sacculus independently that form respectively, what at the bottom of sacculus, A point was ordered with B be wired to sacculus and two described sacculus are connected the end and put vertical dimension that C the orders excretory duct lumen pore distance described in being greater than with body.
4. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described sacculus water filling or gas injection anti back-flow valve afterbody pipeline and described flushing chamber switch are made by hard material, and described flushing chamber switch can separate with described body.
5. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described catheter is placed under retrovesical two sacculus water fillings or gas injection state, excretion tube chamber conduction hole is adjacent with ureteric orifice, can empty bladder interior urine, noresidue.
6. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: the Durometer A hardness scope of described body is 75-85.
7. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described body has radioresistance and there is no degraded can tolerate at least 50kGy.
8. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described body can be pushed by one and moldable material is made.
9. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described blend polymer comprises the polyolefin of at least 80 % by weight and wherein blending medicine oil and/or paraffin.
10. according to the two sacculus three-cavity catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described body has the melt temperature that exceedes 90 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435878.9A CN102908715B (en) | 2012-11-02 | 2012-11-02 | Contact limiting type double-saccule three-cavity catheter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210435878.9A CN102908715B (en) | 2012-11-02 | 2012-11-02 | Contact limiting type double-saccule three-cavity catheter |
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| CN102908715A CN102908715A (en) | 2013-02-06 |
| CN102908715B true CN102908715B (en) | 2014-05-21 |
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| CN201210435878.9A Expired - Fee Related CN102908715B (en) | 2012-11-02 | 2012-11-02 | Contact limiting type double-saccule three-cavity catheter |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357105A (en) * | 2013-07-24 | 2013-10-23 | 王亮 | Limited contact type side saccule double-hole catheter |
| EP3184140B1 (en) * | 2015-12-21 | 2021-10-06 | Dentsply IH AB | Catheters with bevelled drainage holes as well as method and device for forming such holes |
| GB2558930A (en) * | 2017-01-20 | 2018-07-25 | The Flume Catheter Company Ltd | Urinary catheter |
| CN107320802A (en) * | 2017-08-17 | 2017-11-07 | 山东省肿瘤防治研究院 | A kind of Y shape uterine cavity cleaning flow diverter and matched placer |
| CN107952159A (en) * | 2017-11-30 | 2018-04-24 | 四川省第四人民医院 | The auxiliary device of interval sexual openness urinary catheter |
| CN108969868B (en) * | 2018-04-17 | 2024-02-27 | 中国人民解放军陆军军医大学第一附属医院 | Catheter with expansion bag |
| CN109893742A (en) * | 2019-04-08 | 2019-06-18 | 山东大学 | A kind of catheter and method |
| CN111569180A (en) * | 2020-05-25 | 2020-08-25 | 四川大学华西第二医院 | Disposable bladder perfusion apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE433445B (en) * | 1981-04-16 | 1984-05-28 | Erik Gustav Percy Nordqvist | urinary catheter |
| US5417657A (en) * | 1993-10-06 | 1995-05-23 | Hauer; Carolyn | No-sepsis urinary drainage catheter |
| CN201161048Y (en) * | 2007-12-13 | 2008-12-10 | 姚鑫泉 | Novel multifunctional sacculus catheter |
| US8858535B2 (en) * | 2008-06-12 | 2014-10-14 | Ahmad Riaz | Catheter |
| CN201244281Y (en) * | 2008-08-27 | 2009-05-27 | 兖矿集团有限公司 | Three-chamber double-balloon catheter |
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Effective date of registration: 20191204 Address after: 310014, No. 158, Tong Tong Road, Xiacheng District, Hangzhou, Zhejiang Patentee after: ZHEJIANG PROVINCIAL PEOPLE'S Hospital Address before: 310014 hand surgery department, provincial people's Hospital, 158 Shang Tang Road, Zhejiang, Hangzhou 1-8F Patentee before: Wang Liang |
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