CN201132003Y - Silica-gel sphere urinary catheter - Google Patents

Silica-gel sphere urinary catheter Download PDF

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Publication number
CN201132003Y
CN201132003Y CNU2007200757958U CN200720075795U CN201132003Y CN 201132003 Y CN201132003 Y CN 201132003Y CN U2007200757958 U CNU2007200757958 U CN U2007200757958U CN 200720075795 U CN200720075795 U CN 200720075795U CN 201132003 Y CN201132003 Y CN 201132003Y
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CN
China
Prior art keywords
catheter
urinary
intubate
cavity
guide recess
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Expired - Lifetime
Application number
CNU2007200757958U
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Chinese (zh)
Inventor
徐月敏
刘伯福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Integral Medical Products Co Ltd
Shanghai Sixth Peoples Hospital
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Zhejiang Integral Medical Products Co Ltd
Shanghai Sixth Peoples Hospital
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Priority to CNU2007200757958U priority Critical patent/CN201132003Y/en
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Publication of CN201132003Y publication Critical patent/CN201132003Y/en
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Abstract

The utility model provides a silica-gel saccule urinary catheter, which comprises a urinary catheter cannula unit, a urinary catheter body and a urinary catheter interface unit, wherein, the urinary catheter cannula unit comprises a cannula contacted with the urinary meatus, a or a plurality of side hole(s) arranged on the cannula wall of the cannula and a saccule arranged at the tail end of the cannula; a urinary catheter cavity and a saccule catheter cavity are arranged in the urinary catheter body; the urinary catheter interface unit comprises a urinary catheter interface communicated with the urinary catheter cavity and a or a plurality of manifold(s) communicated with the saccule catheter cavity, and a non-return valve(s) is (are) arranged on the manifold body(bodies) of the manifold(s); a guiding groove is arranged on the outer surface of the urinary catheter body and used for guidng the secretion caused by urinary infection or injury. The urinary catheter has the advantages that the urinary catheter can avoid or reduce urinary infection, ensure the urine drainage to be smooth, ensure the secretion caused by urinary infection to be drained out in time and smoothly, decrease the incidence rate of the urinary infection, and reduce the injury caused by urinary infection.

Description

A kind of silica gel saccule urinary catheter
Technical field
This utility model relates to a kind of medical apparatus and instruments instrument, relates more specifically to a kind of silica gel saccule urinary catheter.
Background technology
The ordinary urethral catheter of prior art need make the uncomfortable sensation of patient with the immobilization with adhesive tape urinary catheter in perineal position when keeping somewhere.
In order to overcome above-mentioned shortcoming, use saccule urinary catheter more and more, this catheter has saved the working procedure of preserved skin, avoided adopting the fixed form of adhesive plaster, broken away from fixed adhesive plaster and easily polluted, come off, urinary catheter is slippage back and forth in urethra, trouble such as need in time change, fix.Therefore, the saccule urinary catheter indwelling catheter has replaced common indwelling catheter clinical.
The concrete structure of the saccule urinary catheter of prior art comprises: the one or more side openings on the tube wall that catheter intubate unit, described catheter intubate unit comprise the intubate that contacts with urethral orifice, be arranged on intubate, and the sacculus that is arranged on an end of intubate; The catheter pipe shaft is provided with urine duct cavity and foley's tube cavity in the described catheter pipe shaft; Catheter interface unit, described catheter interface unit comprise catheter interface that is communicated with described urine duct cavity and the arm that is communicated with described foley's tube cavity, on the body of described arm check (non-return) valve are set.
During use, the catheter of prior art is kept somewhere as follows:
The intubate that will contact with urethral orifice is inserted from urethral orifice, has urine behind the insertion bladder and flows out, and inserts about 3-5cm again, reaches suitable indwelling position until intubate; The sterilized water that injects ormal weight from check (non-return) valve makes sacculus fill up; Spur the conduit pipe shaft gently, make sacculus contact fully with bladder; Catheter interface 31 reliably is connected and fixing the beginning indwelling catheter with evacuating catheter.
Then syringe is inserted check (non-return) valve and make the sacculus retraction, the water in the sacculus is discharged fully, extract conduit gently behind the sacculus retraction, thereby make the catheter intubate in patient's body, keep somewhere.
After the indwelling, the catheter side opening is collected urine, and urine enters the urine duct cavity, collects from the catheter interface then.Can also connect cases such as urinary bag on the above-mentioned catheter interface.
Saccule urinary catheter is mainly silica-gel coating latex balloon catheter and pure silicon glueballs capsule catheter at present.Silica-gel coating latex balloon catheter is to continue to flood ready-formed latex Foley conduit and make with curable silica gel elastomer dispersion liquid, and the latter is made by pure silicon glue, advanced sacculus forming technology.Catheter is inserted behind the urethra can not only unobstructed ground drainage of urine, can also be in the effect of urethra molding operation back performance support.
The weak point of above-mentioned two kinds of silica gel saccule urinary catheters is that this catheter still can be introduced slight tissue edema, and moderate inflammation, and particularly common urinary catheter is kept somewhere the damage and the infection that may cause urethra or bladder.If the secretions that urinary tract infection or damage cause not only can increase the weight of injury of urethra at urinary catheter and mucous membrane of urethra gap inadequate drainage, severe patient also can cause urethral stricture.
In sum, this area lacks a kind of silica gel saccule urinary catheter that can avoid or alleviate urinary tract infection.Therefore, this area presses for a kind of silica gel saccule urinary catheter that can avoid or alleviate urinary tract infection of exploitation, can adequate drainage urine, and can make the secretions of urinary tract infection timely, unobstructed ground drain comes out, and the incidence rate of reduction urinary tract infection, alleviates the damage that urinary tract infection causes.
The utility model content
Purpose of design of the present utility model is to obtain a kind of silica gel saccule urinary catheter that can avoid or alleviate urinary tract infection, energy adequate drainage urine, and the secretions that can make urinary tract infection is timely, the drain of unobstructed ground is come out, reduce urinary tract infection incidence rate, alleviate the damage that urinary tract infection causes.
This utility model provides a kind of silica gel saccule urinary catheter, comprising:
One or more side openings on the tube wall that catheter intubate unit, described catheter intubate unit comprise the intubate that contacts with urethral orifice, be arranged on intubate, and the sacculus that is arranged on intubate one end;
The catheter pipe shaft is provided with urine duct cavity and foley's tube cavity in the described catheter pipe shaft;
Catheter interface unit, described catheter interface unit comprise catheter interface that is communicated with described urine duct cavity and the arm that is communicated with described foley's tube cavity, on the body of described arm check (non-return) valve are set;
Its characteristics are,
On the outer surface of described catheter pipe shaft guide recess is set, is used to the secretions that guides urinary tract infection or damage to cause.
In a specific embodiment, described guide recess is made up of two or more groove structure.
In a specific embodiment, described guide recess is made up of two longitudinal fluting structures,
And the axis of the axis of the axis of described longitudinal fluting structure and described urine duct cavity, foley's tube cavity is parallel to each other.
In a specific embodiment,
Described longitudinal fluting structure or axis and the axis of described urine duct cavity have first spacing;
Described longitudinal fluting structure or axis and the axis of described foley's tube cavity have second spacing;
Described first spacing and second spacing are about equally.
In a specific embodiment, the cross section of described guide recess is arc or semicircle.
In a specific embodiment, the cross-sectional area of described guide recess accounts for 10~30% of urethral catheterization pipe shaft cross-sectional area.
In a specific embodiment, the length of described guide recess is consistent with the length of urethral catheterization pipe shaft.
In a specific embodiment, the length of described guide recess is 1/2~9/10 of catheter height degree.
In a specific embodiment, the distance of the initiating terminal of described guide recess and intubate and urethral orifice contact jaw is 5~10cm.
In a specific embodiment, described silica gel saccule urinary catheter is double hose or three-tube type catheter.
Advantage of the present utility model is:
This catheter can not only the adequate drainage urine, and can make the secretions of urinary tract infection timely, the drain of unobstructed ground comes out, reduce urinary tract infection incidence rate, alleviate the damage that urinary tract infection causes.In a specific embodiment of the present utility model, also provide pure silicon glueballs capsule catheter with the vertical symmetric double groove of pipe shaft with pure silicon glue material, advanced sacculus forming technology, unique fluting fabrication techniques.
Description of drawings
Fig. 1 is the catheter structure and the schematic cross-sectional view thereof of an embodiment of the present utility model;
Fig. 2 is the transverse section enlarged diagram of the catheter of an embodiment of the present utility model.
The specific embodiment
This utility model designer is through extensive and deep research, by improving preparation technology, obtained a kind of catheter structure with groove, feasible energy adequate drainage urine, and the secretions that can make urinary tract infection is timely, the drain of unobstructed ground is come out, reduce urinary tract infection incidence rate, alleviate the damage that urinary tract infection causes.Finished this utility model on this basis.
Below each technical characterictic of the present utility model is described:
A kind of silica gel saccule urinary catheter comprises:
One or more side openings 12 on the tube wall that catheter intubate unit 1, described catheter intubate unit 1 comprise the intubate 11 that contacts with urethral orifice, be arranged on intubate 11, and the sacculus 13 that is arranged on an end of intubate 11;
Catheter pipe shaft 2 is provided with urine duct cavity 21 and foley's tube cavity 22 in the described catheter pipe shaft 2;
Catheter interface unit 3, described catheter interface unit 3 comprise catheter interface 31 that is communicated with described urine duct cavity 21 and the arm 32 that is communicated with described foley's tube cavity 22, and check (non-return) valve 33 is set on the body of described arm 32;
Wherein, guide recess 23 is set on the outer surface of described catheter pipe shaft 2, is used to the secretions that guides urinary tract infection or damage to cause.
During use, at first catheter intubate unit 1 is kept somewhere as follows: the intubate 11 that will contact with urethral orifice is inserted from urethral orifice, has urine behind the insertion bladder and flows out, and inserts about 3-5cm again, reaches suitable indwelling position until intubate; The sterilized water that injects ormal weight from check (non-return) valve 33 makes sacculus 13 fill up; Spur conduit pipe shaft 2 gently, make sacculus 13 contact fully with bladder; Catheter interface 31 reliably is connected and fixing the beginning indwelling catheter with evacuating catheter.
Then syringe is inserted check (non-return) valve 33 and make sacculus 13 retractions, the water in the sacculus 13 is discharged fully, extract conduit gently behind the sacculus retraction, thereby make catheter intubate unit 1 in patient's body, keep somewhere;
After the indwelling, catheter side opening 12 is collected urine, and urine enters described urine duct cavity 21, collects from catheter interface 31 then.Can also connect cases such as urinary bag on the above-mentioned catheter interface 31;
Characteristics of the present utility model are: urinary tract infection secretions flows out by guide recess 23.
In the specific embodiment of the present utility model, described guide recess 23 is made up of two or more groove structure.Though a groove structure is set also can the leader urinary tract infection or the secretions that causes of damage, two or many longitudinal fluting structures are set help the secretions that guides urinary tract infection or damage to cause better.
In a preference, described guide recess 23 is made up of two longitudinal fluting structure 23a, 23b, and the axis of the axis of the axis of described longitudinal fluting structure 23a, 23b and described urine duct cavity 21, foley's tube cavity 22 is parallel to each other.
During use,, make secretions that urinary tract infection or damage cause from described two or more longitudinal fluting structure, discharge swimmingly because sidepiece has the groove of being made up of two or more longitudinal fluting structure 23.
More preferably, the axis of the axis of described longitudinal fluting structure 23a or 23b and described urine duct cavity 21 has first spacing; The axis of described longitudinal fluting structure 23a or 23b and the axis of described foley's tube cavity 22 have second spacing; Described first spacing and second spacing are about equally.
During use, above-mentioned axis makes secretions that urinary tract infection or damage cause discharge swimmingly from described two or more longitudinal fluting structure.In addition, make that also processing is convenient.In addition, make the misery of user reduce.
In addition, described guide recess also can adopt the structure that is different from the longitudinal fluting structure, and the alcove of different shape for example is set on the outer surface of catheter pipe shaft, and the secretions that makes urinary tract infection or damage cause can come out from described alcove in drain.The stereochemical structure of described alcove is not specifically limited, and for example adopts helical form, twill-like, as long as the misery of its enough smooth and unlikely increase user in surface.
The cross section of guide recess 23 of the present utility model can adopt different shape, is preferably arc or semicircle.
The cross-sectional area of guide recess 23 of the present utility model is not specifically limited.The object lesson of described cross-sectional area includes but not limited to: the cross-sectional area of guide recess 23 accounts for 10~30% of urethral catheterization pipe shaft 2 cross-sectional areas.According to necessity, the cross-sectional area of guide recess 23 can be greater or lesser.
The cross-sectional area of described guide recess 23 is summations of the cross-sectional area of all groove structures.For example, when described guide recess 23 by two longitudinal fluting structure 23a, when 23b forms, its cross-sectional area is longitudinal fluting structure 23a, the 23b summation of cross-sectional area addition separately.
The longitudinal length of guide recess 23 of the present utility model is not specifically limited.The example of described length includes but not limited to: the length of described guide recess 23 is consistent with the length of urethral catheterization pipe shaft 2.Perhaps, the length of described guide recess 23 is 1/2~9/10 of urethral catheterization pipe shaft 2 length.
Preferably, the length of described guide recess 23 is 1/2~9/10 of urethral catheterization pipe shaft 2 length, and the distance of the initiating terminal of described guide recess 23 and intubate 11 and urethral orifice contact jaw is 5~10cm.The body interior (for example intravesical) that the secretions that can avoid described urinary tract infection or infringement to cause so better flows backwards and gets back to the patient.
Keep somewhere particularly and include but not limited to: described guide recess 23 is made up of two longitudinal fluting structure 23a, 23b, be starting point with the urethral orifice contact jaw on the intubate 11 this moment, and the initiating terminal of described longitudinal fluting structure 23a, 23b (also promptly close patient's a end) is 5~10cm with the distance of starting point.
The material of catheter of the present utility model is generally soft material, can adopt the silica-gel coating latex balloon or all is made up of silica gel, and preferably, material of the present utility model adopts pure silicon glue to make.
Catheter intubate of the present utility model unit is not specifically limited, only otherwise purpose of design of the present utility model is produced restriction to get final product.Its object lesson includes but not limited to: the one or more side openings 12 on the tube wall that comprise the intubate 11 that contacts with urethral orifice, is arranged on intubate 11, and the sacculus 13 that is arranged on the end of intubate 11.
Intubate 11 in the catheter intubate of the present utility model unit can be adhered to other elements, only otherwise purpose of design of the present utility model is produced restriction to get final product.Its object lesson includes but not limited to: catheter intubate 11 is equipped with temperature transducer or electrode etc.
The structure and the quantity of the side opening 12 in the catheter intubate of the present utility model unit are not specifically limited, only otherwise purpose of design of the present utility model is produced restriction to get final product.Urine enters the urine duct cavity 21 that is provided with in the catheter pipe shaft 2 by described side opening 12.
The structure of the sacculus 13 in the catheter intubate of the present utility model unit is not specifically limited, only otherwise purpose of design of the present utility model is produced restriction to get final product.Under inflation or topping up state, the balloon wall of described sacculus 13 expands and makes sacculus 13 present the state of projection, and the balloon wall of described sacculus 13 retraction makes sacculus 13 present calm state under the state of unaerated or topping up.
Catheter sacculus 13 quantity in the catheter intubate of the present utility model unit without limits, only otherwise purpose of design of the present utility model is produced restriction to get final product.Its object lesson includes but not limited to 2 capsules, 3 capsules.
Described sacculus 13 can adhere to other elements, only otherwise purpose of design of the present utility model is produced restriction to get final product.Its object lesson includes but not limited to: sacculus 13 is equipped with temperature transducer or electrode etc.
Be typically provided with urine duct cavity 21 and foley's tube cavity 22 in this utility model catheter pipe shaft 2.
Described pipe shaft 2 can adhere to other elements, only otherwise purpose of design of the present utility model is produced restriction to get final product.Its object lesson includes but not limited to: pipe shaft 2 is equipped with temperature transducer or electrode etc.
The structure and the cross-sectional area of described urine duct cavity 21 are not specifically limited, only otherwise purpose of design of the present utility model is produced restriction to get final product.Example includes but not limited to particularly: in the double hose catheter, described urine duct cavity 21 is an exhaust chamber.Perhaps, in the three-tube type catheter, described urine duct cavity 21 contains two cavitys, and a cavity is an exhaust chamber, and another cavity is an admission chamber, is provided with the separation tube wall between described exhaust chamber and the admission chamber.
The structure and the cross-sectional area of described foley's tube cavity 22 are not specifically limited, only otherwise purpose of design of the present utility model is produced restriction to get final product.
Catheter interface unit of the present utility model is not specifically limited, only otherwise purpose of design of the present utility model is produced restriction to get final product.Its object lesson includes but not limited to: catheter interface unit 3, described catheter interface unit 3 comprises catheter interface 31 that is communicated with described urine duct cavity 21 and the arm 32 that is communicated with described foley's tube cavity 22, and check (non-return) valve 33 is set on the body of described arm 32.
More specifically, in the double hose catheter, described catheter structure 31 is the single tube structure; Described urine enters catheter structure 31 by urine duct cavity 21 and collects during use.
Perhaps, in the three-tube type catheter, described catheter interface 31 is a double pipe structure; And described urine duct cavity 21 contains two cavitys, and a cavity is an exhaust chamber, and another cavity is admission chamber (for example being irrigating catheter cavity or lead installation tube chamber), and described exhaust chamber is communicated with the pipe in described catheter interface 31 double pipe structures; Described admission chamber is communicated with another pipe (also promptly with aforementioned irrigating catheter cavity or lead other structures such as corresponding flushing hole of tube chamber or lead installing hole being installed).During use, the use and the double hose of described exhaust chamber are similar; And admission chamber is used for liquid is injected in patient's body.
Below in conjunction with specific embodiment, further illustrate this utility model.Should be understood that these embodiment only to be used to this utility model is described and be not used in the restriction scope of the present utility model.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Ratio and percentage ratio are based on weight, unless stated otherwise.
Unless otherwise defined or explanation, same meanings of being familiar with of all specialties used herein and scientific words and those skilled in the art.Any in addition method similar or impartial to described content and material all can be applicable in this utility model method.
Other aspects of the present utility model are because the disclosure of this paper is conspicuous to those skilled in the art.
Embodiment
Fig. 1 is the structural representation of a specific embodiment of catheter of the present utility model, and the guide recess of the catheter among this embodiment is made up of two longitudinal fluting structure 23a, 23b.Also comprise the cross section 4 of catheter among Fig. 1, the sketch map of the concrete structure of cross section 4 sees also Fig. 2.
As shown in Figure 1, this silica gel saccule urinary catheter is provided with:
Catheter intubate unit 1, a side opening 12 on the tube wall that have the intubate 11 that contacts with urethral orifice in the described catheter intubate unit 1, is arranged on intubate 11, and the sacculus 13 that is arranged on the end of intubate 11.
With the catheter pipe shaft 2 that the intubate unit 1 of catheter is connected, the inside of described catheter pipe shaft 2 is provided with urine duct cavity 21 and foley's tube cavity 22.
The catheter interface unit 3 that is connected with catheter pipe shaft 2, described catheter interface unit 3 is provided with catheter interface 31 that is communicated with described urine duct cavity 21 and an arm 32 that is communicated with described foley's tube cavity 22, and check (non-return) valve 33 is set on the body of described arm 32.Guide recess 23 is set on the outer surface of described catheter pipe shaft 2, is used to the secretions that guides urinary tract infection or damage to cause.The length of described guide recess 23 is consistent with the length of urethral catheterization pipe shaft 2.
The surface of intubate 11 is slightly curved, and its surface can also apply lubricating oil so that reduce painful when inserting urethral orifice.
Side opening 12 is arranged on the tube wall of intubate 11, and the tract (urine duct cavity 21) in this side opening 12 and the pipe shaft 2 is communicated with, so that keep unobstructed micturition in therapeutic process.
Another tract (foley's tube cavity 22) in sacculus 13 and the pipe shaft 2 is communicated with, after intubate 11 is inserted the user urethra, full sacculus 13 is located intubate 11 in urethra, can inject the sterilized water of ormal weight during clinical use to sacculus 13 in, makes sacculus 13 interior filling and reaches localized function.As shown in Figure 1, for clearer, sacculus 13 is in full state.
The urine that urine duct cavity 21 is used for collecting from side opening 12 is discharged to catheter interface 31.
Foley's tube cavity 22 forms a passage that is communicated with sacculus 13, so that sterilized water or the gas of injecting ormal weight from arm 32 in sacculus 13 position.
Catheter interface 31 connects with urethral catheterization container (as urinary bag, not shown in the figures), and urine enters the urethral catheterization container by this urine duct cavity 21 from described catheter interface 31 outflows again by the urine duct cavity 21 in described side opening 12 and the pipe shaft 2.
Arm 32 is communicated with foley's tube cavity 22 in the catheter interface unit; When clinical use, to sacculus 13 in, inject the sterilized water or the gas of ormal weight by arm 32 by the foley's tube cavity 22 of catheter pipe shaft 2, make sacculus 13 interior filling and reach localized function.
The effect of non-return valve 33 is to prevent that sterilized water flows backwards in the arm 32.
Fig. 2 is the enlarged diagram of cross section 4 among Fig. 1.As shown in Figure 2, described guide recess 23 is made up of two longitudinal fluting structure 23a, 23b, and the axis of the axis of the axis of described longitudinal fluting structure 23a, 23b and described urine duct cavity 21, foley's tube cavity 22 is parallel to each other.The distance of the axis of described longitudinal fluting structure 23a or 23b and the axis of described urine duct cavity 21 is first spacing; The axis of described longitudinal fluting structure 23a or 23b and the axis of described foley's tube cavity 22 have second spacing; Described first spacing and second spacing are about equally.Can also see that from Fig. 2 the cross section of described guide recess 23 is an arc.
Longitudinal fluting structure 23a, 23b form arcual cavity, and when clinical use, the secretions between described urinary catheter and mucous membrane of urethra is discharged by this arc-shaped cross-section structure.
Present embodiment is work like this:
At first catheter is kept somewhere: insert urethra with the intubate 11 of this catheter this moment, and the degree of depth of inserting is decided according to each patient's urethral length.Beat and fill sacculus 2; Spur conduit pipe shaft 2 gently, make sacculus 13 contact fully with bladder; Then syringe is inserted check (non-return) valve 33 and make sacculus 13 retractions, thereby make catheter intubate unit 1 in patient's body, keep somewhere;
After the indwelling, catheter side opening 12 is collected urine, and urine enters described urine duct cavity 21, collects from catheter interface 31 then.Can also connect case (not shown) such as urinary bag on the above-mentioned catheter interface 31.
When between urinary catheter and mucous membrane of urethra secretions being arranged (generally secretions is inevitable), secretions can be discharged along groove 23a, the 23b of catheter pipe shaft, also can make groove 23a, the 23b discharge of secretions by pipe shaft by the extruding urethra.
One was finished when described guide recess 23 tied up to the conduit molding, was applicable to solid gum, liquid glue and all vulcanizing systems.
All quote in this application as a reference at all documents that this utility model is mentioned, just quoted as a reference separately as each piece document.Should be understood that in addition those skilled in the art can make various changes or modifications this utility model after having read above-mentioned teachings of the present utility model, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Claims (10)

1. silica gel saccule urinary catheter comprises:
One or more side openings (12) on the tube wall that catheter intubate unit (1), described catheter intubate unit comprise the intubate (11) that contacts with urethral orifice, be arranged on intubate (11), and the sacculus (13) that is arranged on intubate (11) one ends;
Catheter pipe shaft (2) is provided with urine duct cavity (21) and foley's tube cavity (22) in the described catheter pipe shaft (2);
Catheter interface unit (3), described catheter interface unit (3) comprises catheter interface (31) that is communicated with described urine duct cavity (21) and the arm (32) that is communicated with described foley's tube cavity (22), and check (non-return) valve (33) is set on the body of described arm (32);
It is characterized in that,
Guide recess (23) is set on the outer surface of described catheter pipe shaft (2), is used to the secretions that guides urinary tract infection or damage to cause.
2. catheter according to claim 1 is characterized in that:
Described guide recess (23) is made up of two or more groove structure.
3. catheter according to claim 2 is characterized in that:
Described guide recess (23) is made up of two longitudinal fluting structures (23a), (23b),
And the axis of the axis of the axis of described longitudinal fluting structure (23a), (23b) and described urine duct cavity (21), foley's tube cavity (22) is parallel to each other.
4. catheter according to claim 3 is characterized in that:
The axis of described longitudinal fluting structure (23a) or axis (23b) and described urine duct cavity (21) has first spacing;
The axis of described longitudinal fluting structure (23a) or axis (23b) and described foley's tube cavity (22) has second spacing;
Described first spacing and second spacing are about equally.
5. catheter according to claim 1 is characterized in that: the cross section of described guide recess (23) is arc or semicircle.
6. catheter according to claim 1 is characterized in that: the cross-sectional area of described guide recess (23) accounts for 10~30% of urethral catheterization pipe shaft (2) cross-sectional area.
7. catheter according to claim 1 is characterized in that: the length of described guide recess (23) is consistent with the length of urethral catheterization pipe shaft (2).
8. catheter according to claim 1 is characterized in that: the length of described guide recess (23) is 1/2~9/10 of urethral catheterization pipe shaft (2) length.
9. catheter according to claim 8 is characterized in that: the initiating terminal of described guide recess (23) and intubate (11) are 5~10cm with the distance of urethral orifice contact jaw.
10. catheter according to claim 1 is characterized in that: described silica gel saccule urinary catheter is double hose or three-tube type catheter.
CNU2007200757958U 2007-11-21 2007-11-21 Silica-gel sphere urinary catheter Expired - Lifetime CN201132003Y (en)

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Application Number Priority Date Filing Date Title
CNU2007200757958U CN201132003Y (en) 2007-11-21 2007-11-21 Silica-gel sphere urinary catheter

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Application Number Priority Date Filing Date Title
CNU2007200757958U CN201132003Y (en) 2007-11-21 2007-11-21 Silica-gel sphere urinary catheter

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CN201132003Y true CN201132003Y (en) 2008-10-15

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CNU2007200757958U Expired - Lifetime CN201132003Y (en) 2007-11-21 2007-11-21 Silica-gel sphere urinary catheter

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238977A (en) * 2008-10-31 2011-11-09 D·安德里克 Catheterisation device
CN107773835A (en) * 2017-11-28 2018-03-09 无锡市第二人民医院 Counterflow-preventing antimicrobial form catheter and its manufacture method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238977A (en) * 2008-10-31 2011-11-09 D·安德里克 Catheterisation device
CN107773835A (en) * 2017-11-28 2018-03-09 无锡市第二人民医院 Counterflow-preventing antimicrobial form catheter and its manufacture method

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Granted publication date: 20081015