CN102935260B - Contact-limited type double saccule double-cavity catheter - Google Patents
Contact-limited type double saccule double-cavity catheter Download PDFInfo
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- CN102935260B CN102935260B CN201210435876.XA CN201210435876A CN102935260B CN 102935260 B CN102935260 B CN 102935260B CN 201210435876 A CN201210435876 A CN 201210435876A CN 102935260 B CN102935260 B CN 102935260B
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Abstract
The invention relates to a contact-limited type double saccule double-cavity catheter and belongs to the technical field of auxiliary medical instruments. The contact-limited type double saccule double-cavity catheter is characterized in that a catheter body is made of polymer blend, the outer lateral walls of two saccules of the catheter get thinner gradually from the tip ends to the tail ends, and the two saccules are symmetrically arranged on two sides of the catheter body between the tip ends and the a cavity hole of a drain pipe. The using method of the catheter is that: users can fill water or air when urine exists. The catheter is arranged in the two saccules behind the bladder and inclines toward the tail end in water filling or air filling state, a framework space formed by the saccules and the bottom of a bladder wall is enough to contain a trigone of the bladder, the catheter can be continuously fixed in the bladder without pressing the trigone of the bladder and a ureteral orifice, a drainage hole of a drain pipe cavity is adjacent to the ureteral orifice, urine can be evacuated timely and thoroughly, and the tip ends of the catheter, the two saccules, water or air filling pipe cavities communicated with the saccules, the drainage hole of the drain pipe cavity, the drain pipe cavity, a back flow resisting valve and a conical connector of the drain cavity are integrated through a pipe body.
Description
Technical field
The present invention relates to the two sacculus two chamber catheters of a kind of Restricted Contact type, belong to medical auxiliary apparatus technical field.
Background technology
In medical domain internal disease, surgical diseases, obstetrical and gynecological disease, orthopaedic disease and urology department disease, need insert catheter, indwelling catheter.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, near catheter head end, has a sacculus, and with so that catheter is fixedly retained in intravesical and is difficult for deviating from, the drain of catheter partly connects urinal collection urine.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 two chamber catheter atria conduction holes 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 continue 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 two chamber catheters 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 continue 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 two chamber 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 dissolved the multiple complications that existing saccule urinary catheter produces.
For achieving the above object, the technical scheme adopting is: the two sacculus two chamber catheters of a kind of Restricted Contact type, comprise body, most advanced and sophisticated, 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 forms, 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 is caudad attenuation gradually from tip, and be placed in symmetrically the both sides of the body between most advanced and sophisticated and 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 that the air bag tilting and catheter and wall of urinary bladder bottom form, 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, 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 is linked to be a single piece by body.
Further, after described logical sacculus water filling or the gas injection tube chamber body by the either side of 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 balloon cavity 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, separate, the bottom A point of formed sacculus is ordered with B is wired to sacculus and is connected the end with both sides sacculus with body and puts vertical dimension that C the orders excretion tube chamber conduction hole distance described in being greater than simultaneously.
Further, 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 is pushed and moldable material is made by a kind of, 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, 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 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 that forms the body portion of 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 surpass 90 ℃, preferably surpass 110 ℃, and most preferably be the melt temperature that surpasses 130 ℃; For the preparation of demonstrating low elasticity with the material that forms the body portion of 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 are made by hard material.
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 two chamber 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 that the sacculus tilting and catheter and wall of urinary bladder bottom form, 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.Described catheter is placed in retrovesical two sacculus note water filling or gas injection state retrofilling in emptying bladder cavity, makes tunica muscularis vesicae urinariae in tension state, avoids bladder for a long time in hollow state, control contracture of bladder, and 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 two chamber catheters of Restricted Contact type of the present invention;
Fig. 2 is the head end side structure schematic diagram of the two sacculus two chamber 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 two chamber catheters of the E section of Fig. 5 Restricted Contact type of the present invention; Fig. 4 is the tail end structural representation of the two sacculus two chamber catheters of Restricted Contact type of the present invention;
Fig. 5 is two sacculus two catheter D place, the chamber cross section structure schematic diagrams (amplification) of Fig. 4 Restricted Contact type of the present invention;
Fig. 6 is the structural representation after the two sacculus two chamber catheter sacculus water fillings of Restricted Contact type of the present invention or gas injection;
In figure: 1-body; 2-is most advanced and sophisticated; 3-sacculus blister cavities; 4-atria conduction hole; 5-atria; The logical sacculus water filling of 6-or gas injection tube chamber; 7-from head end caudad gradually attenuation sacculus lateral wall; The sacculus lateral wall of the full thin layer of 8-; The logical sacculus water filling of 9-or the logical sacculus of gas injection tube chamber hole; The logical sacculus water filling of 10-or gas injection tube chamber head part prong; Tube chamber after the logical sacculus water filling of 11-or gas injection tube chamber head part fork; The water filling of 12-sacculus or gas injection anti back-flow valve; 13-atria cone-shaped interface; 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.
The specific embodiment
At accompanying drawing 1 to accompanying drawing 6, the two sacculus two chamber catheters of a kind of Restricted Contact type, comprise body 1, most advanced and sophisticated 2, two sacculus 7 and 8, logical sacculus water filling or gas injection tube chamber 9, excretion tube chamber conduction hole 4, excretion tube chamber 5, sacculus water filling or gas injection anti back-flow valve 12, atria cone-shaped interface 13 forms, the medial wall of two sacculus consists 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, with identical pressure and speed, arrive two identical sacculus blister cavities 3, 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, with identical speed, evenly swell simultaneously and automatically caudad tilt, at intravesical, form two identical water droplet sample sacculus, 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, collecting bag for example, drainage tube, syringe etc.After two sacculus 7 and 8 water fillings or gas injection, can automatically caudad tilt simultaneously, form respectively two sacculus independently, at the bottom of sacculus, A point is ordered with B is wired to sacculus and described both sides sacculus and is connected the vertical dimension that the end point C order with body and is greater than described excretory duct lumen pore distance 4, 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. two sacculus two chamber catheters of a Restricted Contact type, comprise body, most advanced and sophisticated, 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 forms, 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 lateral wall of the sacculus of the lateral wall of the sacculus 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 either side body by the excretory duct lumen pore both sides of described catheter, be divided into two and form logical sacculus water filling that two isometric calibers are identical or gas injection tube chamber and communicate with the chamber of close catheter sacculus respectively, described catheter be placed in retrovesical two sacculus under water filling or gas injection state sustainable fixing described catheter in intravesical, do not deviate from, described catheter is placed in retrovesical two sacculus and does not oppress trigone of bladder under water filling or gas injection state, described catheter is placed in retrovesical two sacculus under water filling or gas injection state, excretion tube chamber conduction hole is adjacent with ureteric orifice, the tip of described catheter, 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 is connected by body.
2. two sacculus two chamber 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 excretory duct lumen pore 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 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 two chamber 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, form respectively two sacculus independently, at the bottom of sacculus, A point is ordered with B is wired to sacculus and described two sacculus and is connected the end with body and puts vertical dimension that C the orders excretory duct lumen pore distance described in being greater than.
4. according to the two sacculus two chamber catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: the afterbody pipeline of described sacculus water filling or gas injection anti back-flow valve is made by hard material.
5. according to the two sacculus two chamber 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 two chamber 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 two chamber 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 two chamber catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described body is pushed and moldable material is made by a kind of.
9. according to the two sacculus two chamber 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 two chamber catheters of Restricted Contact type described in claim 1 or 2, it is characterized in that: described body has the melt temperature that surpasses 90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435876.XA CN102935260B (en) | 2012-11-02 | 2012-11-02 | Contact-limited type double saccule double-cavity catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435876.XA CN102935260B (en) | 2012-11-02 | 2012-11-02 | Contact-limited type double saccule double-cavity catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102935260A CN102935260A (en) | 2013-02-20 |
| CN102935260B true CN102935260B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210435876.XA Expired - Fee Related CN102935260B (en) | 2012-11-02 | 2012-11-02 | Contact-limited type double saccule double-cavity catheter |
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| CN (1) | CN102935260B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064119A (en) * | 2019-05-23 | 2019-07-30 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Simple catheter |
| CN113181518A (en) * | 2021-04-28 | 2021-07-30 | 深圳市美的连医疗电子股份有限公司 | Novel drainage tube |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2417873Y (en) * | 2000-04-19 | 2001-02-07 | 金志宇 | Four-cavity two-ball-bag urethral catheter |
| US7220252B2 (en) * | 2003-07-18 | 2007-05-22 | Polyzen, Inc. | Inflatable dual balloon catheter |
| JP2005287809A (en) * | 2004-03-31 | 2005-10-20 | Terumo Corp | Medical tool |
| CN201244113Y (en) * | 2008-06-25 | 2009-05-27 | 王亮 | Finite contact type air bag urinary catheter |
| CN201701620U (en) * | 2010-05-10 | 2011-01-12 | 海盐康源医疗器械有限公司 | Catheter with elbow pipe |
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2012
- 2012-11-02 CN CN201210435876.XA patent/CN102935260B/en not_active Expired - Fee Related
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| CN102935260A (en) | 2013-02-20 |
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Effective date of registration: 20191219 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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