CN209286462U - A kind of catheter and Male urethral catheter - Google Patents
A kind of catheter and Male urethral catheter Download PDFInfo
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- CN209286462U CN209286462U CN201822157788.3U CN201822157788U CN209286462U CN 209286462 U CN209286462 U CN 209286462U CN 201822157788 U CN201822157788 U CN 201822157788U CN 209286462 U CN209286462 U CN 209286462U
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- tube body
- outer tube
- central tube
- catheter
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Abstract
The utility model discloses a kind of catheter, comprising: outer tube body, it is axial that urethral catheterization passage is set;And central tube, axial direction are provided with through channel, the central tube is arranged in the channel of the outer tube body, and both ends each extend over out the outer tube body, and can be axially moved along the outer tube body;Wherein, the central tube for stretching out the outer tube body front end is gradually hardened along the direction of the outer tube body from front to back.The utility model also provides a kind of Male urethral catheter, it is provided with central tube, and central tube front end is provided with opening, and it is gradually hardened along the direction close to the outer tube body, enter in bladder convenient for central tube along the bending part of male urethra, and determine the position of outer tube body, convenient for the implantation of catheter.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly, the utility model relates to a kind of catheter and
Male urethral catheter.
Background technique
Urethral catheterization is clinically common one of medical care precess, suitable for having because lower urinary tract obstruction or neural source bladder etc. are many
The retention of urine caused by reason, urethral catheterization operation is also applied to rescue urgent patient, peri-operation period prepares, intravesical drug is perfused or wing
Situations such as Guang rinses.Catheter is equally applicable for the drainages such as bladder stoma, renal plevis fistulization use.
Since man's urethra path is very complicated, so that the insertion of man's catheter, increasingly complex and difficult, and to urethral catheterization
The structure of pipe has higher requirement.Male urethra forms three narrow, three expansions and two in long and complex stroke
Bending.Three narrow: orificium urethrae internum, orificium urethrae externum, film portion.Three expansions: prostatic part, urethra bulb and navicular fossa of urethra.
Two bendings: curvatura praepubica and curvatura infrapubica.
Wherein, curvatura infrapubica song angle is larger and can not change with outer urethra position;In addition, elderly men is different
Degree hyperplasia of prostate, i.e., traditional catheter enter prostatic urethra and are obstructed very big so that a large amount of patients can not be implanted into urethral catheterization
Pipe, therefore and punctio vesicae drawing liquid art, cystostomy, the operations behaviour such as lower indwelling catheter is assisted with ureteroscope or cystoscope
Make.The above two solutions are traumatic treatment, and this technology only compares the latter of atraumatic.Ureteroscope or cystoscope auxiliary
Lower indwelling catheter is summarized as follows: after taking lithotomy position, anesthesia to come into force in operating room, ureteroscope or cystoscope direct-view are lower into wing
Guang, diameter ureteroscope or cystoscope cavity indwelling seal wire, move back mirror, and the diameter seal wire is pushed into traditional catheter.I.e. operation behaviour purpose is
Indwelling seal wire enters in bladder, which can not pass through hand in out operating-room due to technology itself and male urethra anatomical structure
Method operation it is blind enter bladder.
2. since there are the length at least top 3cm drainage probes, while patients with catheterization for traditional catheter sacculus front end
Bladder is mostly hollow or virtual state, a large amount of clinical discoveries and experiment confirm the probe in a short time only in its institute of fundus of bladder in midair
And (about diameter 2cm irregular shape range) passes through extruding in range, scratch leads to bladder mucosa limitation inflammatory reaction, indwelling is big
Occurred different degrees of mucous membrane hyperemia, hyperplasia in 3 days;Occurred greater than 5 days limitation bladder mucosa polypoid change with surface ulceration,
Occult blood under mirror;Indwelling in greater than 1 month is then festered with limitations polyp hyperplasia accompanied surface, calcification, gross hematuria etc.;It is long
There are canceration risks for phase indwelling.
3. the probe and Catheter in Patients complication are such as: cystospasm, hypogastralgia are positively correlated.
Utility model content
One purpose of the utility model is to have designed and developed a kind of catheter, central tube front end is gradually hardened, and is convenient for
Heart pipe enters in bladder along urethra, and facilitates and judge whether central tube front end enters bladder, central tube guiding outer tube body portion
Enter bladder.
Another purpose of the utility model is to have designed and developed a kind of Male urethral catheter, convenient for central tube along male urine
The bending part in road enters in bladder, and facilitates and judge whether central tube front end enters bladder, central tube guiding outer tube body portion
Enter bladder.
Technical solution provided by the utility model are as follows:
A kind of catheter, comprising:
Outer tube body, it is axial that urethral catheterization passage is set;And
Central tube, axial direction are provided with through channel, and the central tube is arranged in the channel of the outer tube body, and both ends
The outer tube body is each extended over out, and can be axially moved along the outer tube body;
Wherein, the central tube for stretching out the outer tube body front end is gradually hardened along the direction of the outer tube body from front to back.
Preferably, the central tube gradually thickens along vertical direction, central tube wall thickness;Or described in stretching out
The central tube front end of outer tube body is circumferentially provided with through-hole, and along the vertical direction of the central tube, the central tube
The quantity for the through-hole being circumferentially arranged gradually decreases.
Preferably, the outer diameter of the central tube is less than or equal to the internal diameter of the outer tube body.
Preferably, the outer circumference of the central tube is 7.5~8.5mm.
Preferably, it is 10~15cm that the length of the outer tube body is stretched out in the central tube front end.
Preferably, further include sacculus, be arranged in the outer tube body front end;Further include waterflood path, is arranged in institute
It states in outer tube body or in outer tube body wall, and one end is connected to the sacculus, the other end is provided with check valve, is used for the ball
Intracapsular water filling.
Preferably, further include irrigation channel, be arranged in the outer tube body or in outer tube body wall, and one end has
Opening is arranged in the outer tube body front end face.
Preferably, further include limiting device, rear end is set and is stretched out on the central tube of the outer tube body, and the limit
The length of position device is more than or equal to the outer diameter of the outer tube body, transports axially forward for limiting the central tube along the outer tube body
It is dynamic.
Preferably, the central tube front end is arc surface;Or the outer tube body front end has circular arc excessive;Or institute
Stating limiting device is clip;Or the outer tube body rear end is hollow round table structure, in the central tube rear end with it is described hollow
Frustum cone structure is equipped with hollow round table structure.
A kind of Male urethral catheter, comprising:
Outer tube body, it is axial that urethral catheterization passage is set;And
Central tube, axial direction are provided with through channel, and the central tube is arranged in the channel of the outer tube body, and both ends
The outer tube body is each extended over out, and can be axially moved along the outer tube body;
Wherein, the central tube for stretching out the outer tube body front end is gradually hardened along the direction of the outer tube body from front to back.
It is described in the utility model the utility model has the advantages that
(1) catheter that the utility model is designed and developed is provided with central tube, and central tube front end is provided with opening,
And it is gradually hardened along the direction close to the outer tube body, enters in bladder convenient for central tube along urethra, and determine outer tube body
Position, convenient for the implantation of catheter.
(2) Male urethral catheter that the utility model is designed and developed is provided with central tube, and is provided with out in central tube front end
Mouthful, and be gradually hardened along the direction close to the outer tube body, enter wing along the bending part of male urethra convenient for central tube
In Guang, and the position of outer tube body is determined, convenient for the implantation of catheter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of catheter described in the utility model embodiment 1.
Fig. 2 is the structural schematic diagram of catheter described in the utility model embodiment 1.
Fig. 3 is the schematic cross-sectional view of the front end of catheter described in the utility model embodiment 1.
Fig. 4 is the structural schematic diagram of central tube described in the utility model embodiment 1.
Fig. 5 is the structural schematic diagram of catheter described in the utility model embodiment 2.
Fig. 6 is the structural schematic diagram of catheter described in the utility model embodiment 2.
Fig. 7 is the schematic cross-sectional view of the front end of catheter described in the utility model embodiment 2.
Fig. 8 is the structural schematic diagram of central tube described in the utility model embodiment 3.
Fig. 9 is the structural schematic diagram of catheter described in the utility model embodiment 3.
Figure 10 is the structural schematic diagram of catheter described in the utility model embodiment 3.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
The utility model provides a kind of catheter, comprising: outer tube body, axial direction are provided with water flushing channel;And central tube,
Its axial direction is provided with cavity passage, which is arranged in the water flushing channel of outer tube body, and outer tube body is stretched out at both ends, and can
It is axially moved along outer tube body;In central tube front end, at least one through-hole is set;Wherein, the length of outer tube body is stretched out in central tube front end
For 8~10cm, and the central tube of outer tube body is stretched out, is gradually hardened along the direction close to the outer tube body.Central tube is by changing
Become wall thickness to control its tube body hardness.The outer diameter of central tube is less than or equal to the internal diameter of outer tube body.The outer circumference of central tube is 7.5
~8.5mm.Limiting device is provided on the central tube for the outer tube body that rear end is stretched out, and the axial length of limiting device is greater than etc.
In the outer diameter of outer tube body, it is moved axially forwards for limiting central tube along outer tube body.
Embodiment 1
As shown in Figs 1-4, the present embodiment provides a kind of catheters, comprising: outer tube body 110, it is logical that axial direction is provided with bath
Road;And central tube 120, axial direction are provided with cavity passage, are arranged in outer tube body 110 and outer tube body 110 is stretched out at both ends,
And it can be axially moved along outer tube body 110;In 120 front end of central tube, at least one through-hole 121 is set, convenient for the circulation of urine,
The length that outer tube body 110 is stretched out in 120 front end of central tube is 10~15cm (being arranged as the case may be), and stretches out outer tube body 110
Central tube, be gradually hardened along close to the direction of outer tube body 110, enter in bladder convenient for operation center's pipe 120 along urethra, and
The position of outer tube body 110 is determined according to the length (8~10cm) that outer tube body 110 is stretched out in 120 front end of central tube, then pushes outer tube body
110 move in bladder along central tube 120, complete the implantation of catheter.
In the present embodiment, (or stretched out described outer by the hardness of the wall thickness control central tube 120 of control centre's pipe 120
The central tube front end of tube body is circumferentially provided with through-hole, and along the vertical direction of the central tube, the central tube week
It is gradually decreased to the quantity of the through-hole of setting, passes through the hardness of the circumferential quantity control centre pipe front end that through-hole is set).Central tube
120 outer diameter is less than or equal to the internal diameter of outer tube body 110, is axially moved convenient for central tube 120 along outer tube body 110.According to specific
Physiological structure, the outer circumference of central tube 120 are generally 7.5~8.5mm, preferably 8.0mm.The front end of central tube 120 is arc
Face, and 110 front end of outer tube body has arc-shaped transition, avoids outer tube body 110 and central tube 120 when being implanted into the thorn of bladder inner wall
Swash.
Limiting device 130, and the axis of limiting device 130 are provided on the central tube 120 that the rear end of outer tube body 110 is stretched out
It is more than or equal to the outer diameter of outer tube body 110 to length, is moved axially forwards for limiting central tube 120 along outer tube body 110.Limit dress
Set 130 for clip or other any can clamp central tube 120 and cooperate outer tube body 110 (size of the i.e. described clip is greater than
The size of outer tube body 110) limitation central tube 120 be moved axially forwards along outer tube body 110, clip type in the prior art
It is various, as long as meet the requirements, this will not be repeated here for structure.
In the present embodiment, the catheter further includes sacculus 140, is arranged in 110 front end of outer tube body, and sacculus
140 front ends are 3mm or so at a distance from 110 front end of outer tube body.Further include waterflood path 150, is arranged in the outer tube body 110
It is interior, and one end is connected to the sacculus 140, the other end is provided with check valve (not shown), for into the sacculus 140
Water filling.Further include irrigation channel 160, be arranged in the outer tube body 110, and one end has 161 setting of opening described outer
110 front end face of tube body, for injecting flushing water into bladder, the substances such as clot in washed bladder.
Embodiment 2
As illustrated in figs. 5-7, the present embodiment provides a kind of catheters, comprising: outer tube body 110, it is logical that axial direction is provided with bath
Road;And central tube 120, axial direction are provided with cavity passage, are arranged in outer tube body 110 and outer tube body 110 is stretched out at both ends,
And it can be axially moved along outer tube body 110;In 120 front end of central tube, at least one through-hole 121 is set, convenient for the circulation of urine,
The length that outer tube body 110 is stretched out in 120 front end of central tube is 10~15cm (being arranged as the case may be), and stretches out outer tube body 110
Central tube, be gradually hardened along close to the direction of outer tube body 110, enter in bladder convenient for operation center's pipe 120 along urethra, and
The position of outer tube body 110 is determined according to the length (10~15cm) that outer tube body 110 is stretched out in 120 front end of central tube, then pushes outer tube
Body 110 moves in bladder along central tube 120, completes the implantation of catheter.
In the present embodiment, (or stretched out described outer by the hardness of the wall thickness control central tube 120 of control centre's pipe 120
The central tube front end of tube body is circumferentially provided with through-hole, and along the vertical direction of the central tube, the central tube week
It is gradually decreased to the quantity of the through-hole of setting, passes through the hardness of the circumferential quantity control centre pipe front end that through-hole is set).Central tube
120 outer diameter is less than or equal to the internal diameter of outer tube body 110, is axially moved convenient for central tube 120 along outer tube body 110.According to specific
Physiological structure, the outer circumference of central tube 120 are generally 7.5~8.5mm, preferably 8.0mm.The front end of central tube 120 is arc
Face, and 110 front end of outer tube body has arc-shaped transition, avoids outer tube body 110 and central tube 120 when being implanted into the thorn of bladder inner wall
Swash.
Limiting device 130, and the axis of limiting device 130 are provided on the central tube 120 that the rear end of outer tube body 110 is stretched out
It is more than or equal to the outer diameter of outer tube body 110 to length, is moved axially forwards for limiting central tube 120 along outer tube body 110.Limit dress
Set 130 for clip or other any can clamp central tube 120 and cooperate outer tube body 110 (size of the i.e. described clip is greater than
The size of outer tube body 110) limitation central tube 120 be moved axially forwards along outer tube body 110, clip type in the prior art
It is various, as long as meet the requirements, this will not be repeated here for structure.
In the present embodiment, the catheter further includes sacculus 140, is arranged in 110 front end of outer tube body, and sacculus
140 front ends are 3mm or so at a distance from 110 front end of outer tube body.Further include waterflood path 150, is arranged in the outer tube body 110
In inner wall, and one end is connected to the sacculus 140, and the other end is provided with check valve (not shown), is used for the sacculus
Water filling in 140.Further include irrigation channel 160, be arranged in 110 inner wall of outer tube body, and one end has 161 setting of opening
In 110 front end face of outer tube body, for injecting flushing water into bladder, the substances such as clot in washed bladder.
Embodiment 3
As seen in figs. 8-10, the present embodiment provides a kind of catheters, comprising: outer tube body 110, it is logical that axial direction is provided with bath
Road;And central tube 120, axial direction are provided with cavity passage, are arranged in outer tube body 110 and outer tube body 110 is stretched out at both ends,
And it can be axially moved along outer tube body 110;In 120 front end of central tube, at least one through-hole 121 is set, convenient for the circulation of urine,
The length that outer tube body 110 is stretched out in 120 front end of central tube is 10~15cm (being arranged as the case may be), and stretches out outer tube body 110
Central tube, be gradually hardened along close to the direction of outer tube body 110, enter in bladder convenient for operation center's pipe 120 along urethra, and
The position of outer tube body 110 is determined according to the length (10~15cm) that outer tube body 110 is stretched out in 120 front end of central tube, then pushes outer tube
Body 110 moves in bladder along central tube 120, completes the implantation of catheter.
In the present embodiment, (or stretched out described outer by the hardness of the wall thickness control central tube 120 of control centre's pipe 120
The central tube front end of tube body is circumferentially provided with through-hole, and along the vertical direction of the central tube, the central tube week
It is gradually decreased to the quantity of the through-hole of setting, passes through the hardness of the circumferential quantity control centre pipe front end that through-hole is set).Central tube
120 outer diameter is less than or equal to the internal diameter of outer tube body 110, is axially moved convenient for central tube 120 along outer tube body 110.According to specific
Physiological structure, the outer circumference of central tube 120 are generally 7.5~8.5mm, preferably 8.0mm.The front end of central tube 120 is arc
Face, and 110 front end of outer tube body has arc-shaped transition, avoids outer tube body 110 and central tube 120 when being implanted into the thorn of bladder inner wall
Swash.
Limiting device is provided on the middle spool 120 that the rear end of outer tube body 110 is stretched out, in the present embodiment, outer tube body 110
Rear end is hollow round table structure 111, is equipped with hollow round table structure in 120 rear end of central tube and hollow round table structure 111
121, hollow round table structure 111 and hollow round table structure 121 are mutually clamped fixation, can be separated by external force, Jin Ershi
The relative position limit of existing central tube 120 and outer tube body 110.
In the present embodiment, the catheter further includes sacculus 140, is arranged in 110 front end of outer tube body, and sacculus
140 front ends are 3mm or so at a distance from 110 front end of outer tube body.Further include waterflood path 150, is arranged in the outer tube body 110
In inner wall, and one end is connected to the sacculus 140, and the other end is provided with check valve (not shown), is used for the sacculus
Water filling in 140.Further include irrigation channel 160, be arranged in 110 inner wall of outer tube body, and one end has 161 setting of opening
In 110 front end face of outer tube body, for injecting flushing water into bladder, the substances such as clot in washed bladder.
Operating process
The length that outer tube body is stretched out in control centre's pipe front end is 10cm, and is limited with limiting device, and operation outer tube body is in
Heart pipe is moved along urethra into bladder, and after central tube enters in bladder, intravesical urine passes through the logical of central tube front end
Hole is flowed out after flowing through central tube, that is, can determine that central tube comes into bladder, is at a distance from outer tube body by hub head end
10cm determines the position of outer tube body, then outer tube body is pushed to move in bladder along central tube, completes the implantation of catheter.Pass through
Waterflood path is filled the water into sacculus, is positioned to outer tube body, it is fixed in bladder to make it, then central tube is withdrawn from.It is logical
It crosses irrigation channel and injects flushing water into bladder, the substances such as clot in washed bladder.
Certainly, the utility model is more applicable for Male urethral catheter, and male urethra forms three in long and complex stroke
A narrow, three expansions and two bendings.Three narrow: orificium urethrae internum, orificium urethrae externum, film portion.Three expansions: prostatic part,
Urethra bulb and navicular fossa of urethra.Two bendings: curvatura praepubica and curvatura infrapubica.I.e. male urethra has a very curved portion
Point.By rear rigid structure soft before central tube, operation center's pipe can be easily facilitated and entered along the bending part of male urethra
In bladder, the implantation of catheter is completed.
The catheter that the utility model is designed and developed is provided with central tube, and central tube front end is provided with opening, and
It is gradually hardened along the direction close to the outer tube body, enters in bladder convenient for central tube along urethra, and determine the position of outer tube body
It sets, convenient for the implantation of catheter.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (10)
1. a kind of catheter characterized by comprising
Outer tube body, it is axial that urethral catheterization passage is set;And
Central tube, axial direction are provided with through channel, and the central tube is arranged in the channel of the outer tube body, and both ends are distinguished
Extend the outer tube body, and can be axially moved along the outer tube body;
Wherein, the central tube for stretching out the outer tube body front end is gradually hardened along the direction of the outer tube body from front to back.
2. catheter as described in claim 1, which is characterized in that the central tube is along vertical direction, central tube
Wall thickness gradually thickens;Or the central tube front end of the stretching outer tube body is circumferentially provided with through-hole, and along the central tube
The quantity in vertical direction, the through-hole that the central tube is circumferentially arranged gradually decreases.
3. catheter as claimed in claim 2, which is characterized in that the outer diameter of the central tube is less than or equal to the outer tube body
Internal diameter.
4. catheter as described in claim 1, which is characterized in that the outer circumference of the central tube is 7.5~8.5mm.
5. catheter as claimed in claim 1 or 2, which is characterized in that the length of the outer tube body is stretched out in the central tube front end
Degree is 10~15cm.
6. catheter as claimed in claim 5, which is characterized in that further include sacculus, be arranged in the outer tube body front end;Also
Including waterflood path, it is arranged in the outer tube body or in outer tube body wall, and one end is connected to the sacculus, the other end is set
It is equipped with check valve, for filling the water into the sacculus.
7. catheter as claimed in claim 6, which is characterized in that further include irrigation channel, be arranged in the outer tube body
Or in outer tube body wall, and there is opening to be arranged in the outer tube body front end face for one end.
8. catheter as claimed in claim 1 or 2, which is characterized in that further include limiting device, setting stretches out institute in rear end
It states on the central tube of outer tube body, and the length of the limiting device is more than or equal to the outer diameter of the outer tube body, it is described for limiting
Central tube is moved axially forwards along the outer tube body.
9. catheter as claimed in claim 8, which is characterized in that the central tube front end is arc surface;Or the outer tube
Body front end has circular arc excessive;Or the limiting device is clip;Or the outer tube body rear end is hollow round table structure, institute
It states rear end and the hollow round table structure in central tube and is equipped with hollow round table structure.
10. a kind of Male urethral catheter characterized by comprising
Outer tube body, it is axial that urethral catheterization passage is set;And
Central tube, axial direction are provided with through channel, and the central tube is arranged in the channel of the outer tube body, and both ends are distinguished
Extend the outer tube body, and can be axially moved along the outer tube body;
Wherein, the central tube for stretching out the outer tube body front end is gradually hardened along the direction of the outer tube body from front to back.
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CN201822157788.3U CN209286462U (en) | 2018-12-21 | 2018-12-21 | A kind of catheter and Male urethral catheter |
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CN201822157788.3U CN209286462U (en) | 2018-12-21 | 2018-12-21 | A kind of catheter and Male urethral catheter |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109464738A (en) * | 2018-12-21 | 2019-03-15 | 尚楠 | A kind of catheter and Male urethral catheter |
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2018
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109464738A (en) * | 2018-12-21 | 2019-03-15 | 尚楠 | A kind of catheter and Male urethral catheter |
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