CN109464738A - A kind of catheter and Male urethral catheter - Google Patents
A kind of catheter and Male urethral catheter Download PDFInfo
- Publication number
- CN109464738A CN109464738A CN201811571310.3A CN201811571310A CN109464738A CN 109464738 A CN109464738 A CN 109464738A CN 201811571310 A CN201811571310 A CN 201811571310A CN 109464738 A CN109464738 A CN 109464738A
- Authority
- CN
- China
- Prior art keywords
- tube body
- outer tube
- central tube
- catheter
- central
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000002262 irrigation Effects 0.000 claims description 6
- 238000003973 irrigation Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 2
- 210000003708 urethra Anatomy 0.000 abstract description 22
- 238000002513 implantation Methods 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 206010020718 hyperplasia Diseases 0.000 description 2
- 210000004877 mucosa Anatomy 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 1
- 206010020565 Hyperaemia Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 208000037062 Polyps Diseases 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 206010046555 Urinary retention Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000022182 gross hematuria Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002504 lithotomy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 230000036269 ulceration Effects 0.000 description 1
- 201000002327 urinary tract obstruction Diseases 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0053—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1078—Urinary tract
- A61M2210/1089—Urethra
- A61M2210/1096—Male
Abstract
The present invention 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 present invention 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 present invention relates to the field of medical instrument technology, and more particularly, the present invention relates to a kind of catheter and Male urethral catheterizations
Pipe.
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.
Summary of the invention
It is an object of the invention to design and develop a kind of catheter, central tube front end is gradually hardened, and is convenient for central tube
Enter in bladder along urethra, and facilitate and judge whether central tube front end enters bladder, central tube guiding outer tube body portion into
Enter bladder.
Another object of the present invention is to have designed and developed a kind of Male urethral catheter, convenient for central tube along male urethra
Bending part enters in bladder, and facilitates and judge whether central tube front end enters bladder, central tube guiding outer tube body portion into
Enter bladder.
Technical solution provided by the invention 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 of the present invention the utility model has the advantages that
(1) catheter that the present invention designs and develops, 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.
(2) Male urethral catheter that the present invention designs and develops, 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 bladder along the bending part of male urethra convenient for central tube
In, and determine the position of outer tube body, convenient for the implantation of catheter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of catheter described in the embodiment of the present invention 1.
Fig. 2 is the structural schematic diagram of catheter described in the embodiment of the present invention 1.
Fig. 3 is the schematic cross-sectional view of the front end of catheter described in the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of central tube described in the embodiment of the present invention 1.
Fig. 5 is the structural schematic diagram of catheter described in the embodiment of the present invention 2.
Fig. 6 is the structural schematic diagram of catheter described in the embodiment of the present invention 2.
Fig. 7 is the schematic cross-sectional view of the front end of catheter described in the embodiment of the present invention 2.
Fig. 8 is the structural schematic diagram of central tube described in the embodiment of the present invention 3.
Fig. 9 is the structural schematic diagram of catheter described in the embodiment of the present invention 3.
Figure 10 is the structural schematic diagram of catheter described in the embodiment of the present invention 3.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
The present invention provides a kind of catheter, comprising: outer tube body, axial direction are provided with water flushing channel；And central tube, axis
To cavity passage is provided with, which is arranged in the water flushing channel of outer tube body, and outer tube body is stretched out at both ends, and can be along outer
Tube body is axially moved；In central tube front end, at least one through-hole is set；Wherein, it is 8 that the length of outer tube body is stretched out in central tube front end
~10cm, and the central tube of outer tube body is stretched out, it is gradually hardened along the direction close to the outer tube body.Central tube is by changing wall
Thickness controls 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 be 7.5~
8.5mm.It is provided with limiting device on the central tube for the outer tube body that rear end is stretched out, and the axial length of limiting device is more than or equal to
The outer diameter of outer tube body 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 present invention is more applicable for Male urethral catheter, and for male urethra in long and complex stroke, formation three is narrow
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 part.It is logical
The preceding soft rear rigid structure for crossing central tube, can easily facilitate operation center's pipe along the bending part of male urethra and enter bladder
In, complete the implantation of catheter.
The catheter that the present invention designs and develops is provided with central tube, and central tube front end is provided with opening, and edge is leaned on
The direction of the nearly outer tube body is gradually hardened, and enters in bladder convenient for central tube along urethra, and determines the position of outer tube body, just
In the implantation of catheter.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571310.3A CN109464738A (en) | 2018-12-21 | 2018-12-21 | A kind of catheter and Male urethral catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571310.3A CN109464738A (en) | 2018-12-21 | 2018-12-21 | A kind of catheter and Male urethral catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109464738A true CN109464738A (en) | 2019-03-15 |
Family
ID=65676611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811571310.3A Pending CN109464738A (en) | 2018-12-21 | 2018-12-21 | A kind of catheter and Male urethral catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109464738A (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976690A (en) * | 1989-08-10 | 1990-12-11 | Scimed Life Systems, Inc. | Variable stiffness angioplasty catheter |
| US5437632A (en) * | 1993-06-02 | 1995-08-01 | Target Therapeutics, Inc. | Variable stiffness balloon catheter |
| US20030153899A1 (en) * | 1998-02-04 | 2003-08-14 | Uzi Eshel | Urethral catheter and guide |
| US20080045928A1 (en) * | 2006-06-30 | 2008-02-21 | Abbott Cardiovascular System Inc. | Balloon catheter tapered shaft having high strength and flexibility and method of making same |
| CN201030132Y (en) * | 2007-03-29 | 2008-03-05 | 上海市第八人民医院 | Modified gasbag urinary catheter |
| CN101933821A (en) * | 2009-06-30 | 2011-01-05 | 微创医疗器械(上海)有限公司 | Mciro-catheter |
| CN102500041A (en) * | 2011-11-10 | 2012-06-20 | 微创医疗器械(上海)有限公司 | Balloon dilatation catheter |
| CN202822421U (en) * | 2012-08-21 | 2013-03-27 | 中国人民解放军第三军医大学第二附属医院 | Lead-in type catheter |
| CN203507298U (en) * | 2013-09-27 | 2014-04-02 | 陕西省肿瘤医院 | Urine guiding device |
| KR20140117871A (en) * | 2013-03-27 | 2014-10-08 | 전북대학교산학협력단 | Catheter and method for inserting catheter |
| EP2921193A1 (en) * | 2014-03-20 | 2015-09-23 | Willy Rüsch GmbH | Multiflexible catheter tube |
| US20150297863A1 (en) * | 2012-11-14 | 2015-10-22 | Hollister Incorporated | Urinary Catheters Having Varying Flexibility |
| CN205084168U (en) * | 2015-11-03 | 2016-03-16 | 同济大学附属第十人民医院 | Urethral catheter |
| CN105828690A (en) * | 2014-04-08 | 2016-08-03 | 奥林巴斯株式会社 | Endoscopic device |
| CN205514708U (en) * | 2016-01-25 | 2016-08-31 | 中国人民解放军第四军医大学 | Little pipe of external diameter and hardness gradual change |
| CN206390887U (en) * | 2016-10-13 | 2017-08-11 | 中国人民解放军总医院第一附属医院 | Male urethral orifice check device |
| CN207041734U (en) * | 2017-01-20 | 2018-02-27 | 苏州宇度医疗器械有限责任公司 | Anti- infection Foley catheter |
| CN108478919A (en) * | 2018-06-08 | 2018-09-04 | 尚楠 | A kind of catheter |
| CN209286462U (en) * | 2018-12-21 | 2019-08-23 | 尚楠 | A kind of catheter and Male urethral catheter |
-
2018
- 2018-12-21 CN CN201811571310.3A patent/CN109464738A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976690A (en) * | 1989-08-10 | 1990-12-11 | Scimed Life Systems, Inc. | Variable stiffness angioplasty catheter |
| US5437632A (en) * | 1993-06-02 | 1995-08-01 | Target Therapeutics, Inc. | Variable stiffness balloon catheter |
| US20030153899A1 (en) * | 1998-02-04 | 2003-08-14 | Uzi Eshel | Urethral catheter and guide |
| US20080045928A1 (en) * | 2006-06-30 | 2008-02-21 | Abbott Cardiovascular System Inc. | Balloon catheter tapered shaft having high strength and flexibility and method of making same |
| CN201030132Y (en) * | 2007-03-29 | 2008-03-05 | 上海市第八人民医院 | Modified gasbag urinary catheter |
| CN101933821A (en) * | 2009-06-30 | 2011-01-05 | 微创医疗器械(上海)有限公司 | Mciro-catheter |
| CN102500041A (en) * | 2011-11-10 | 2012-06-20 | 微创医疗器械(上海)有限公司 | Balloon dilatation catheter |
| CN202822421U (en) * | 2012-08-21 | 2013-03-27 | 中国人民解放军第三军医大学第二附属医院 | Lead-in type catheter |
| US20150297863A1 (en) * | 2012-11-14 | 2015-10-22 | Hollister Incorporated | Urinary Catheters Having Varying Flexibility |
| KR20140117871A (en) * | 2013-03-27 | 2014-10-08 | 전북대학교산학협력단 | Catheter and method for inserting catheter |
| CN203507298U (en) * | 2013-09-27 | 2014-04-02 | 陕西省肿瘤医院 | Urine guiding device |
| EP2921193A1 (en) * | 2014-03-20 | 2015-09-23 | Willy Rüsch GmbH | Multiflexible catheter tube |
| CN105828690A (en) * | 2014-04-08 | 2016-08-03 | 奥林巴斯株式会社 | Endoscopic device |
| CN205084168U (en) * | 2015-11-03 | 2016-03-16 | 同济大学附属第十人民医院 | Urethral catheter |
| CN205514708U (en) * | 2016-01-25 | 2016-08-31 | 中国人民解放军第四军医大学 | Little pipe of external diameter and hardness gradual change |
| CN206390887U (en) * | 2016-10-13 | 2017-08-11 | 中国人民解放军总医院第一附属医院 | Male urethral orifice check device |
| CN207041734U (en) * | 2017-01-20 | 2018-02-27 | 苏州宇度医疗器械有限责任公司 | Anti- infection Foley catheter |
| CN108478919A (en) * | 2018-06-08 | 2018-09-04 | 尚楠 | A kind of catheter |
| CN209286462U (en) * | 2018-12-21 | 2019-08-23 | 尚楠 | A kind of catheter and Male urethral catheter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0441621B2 (en) | ||
| CN108478919A (en) | A kind of catheter | |
| CN211327691U (en) | Built-in catheter kit | |
| CN209286462U (en) | A kind of catheter and Male urethral catheter | |
| CN104758097B (en) | A kind of anti-reflux type ureter bracket | |
| CN112426616A (en) | Special ureteral stent for kidney transplantation | |
| CN108969868A (en) | Catheter with swelling bag | |
| CN108785825B (en) | Part quick dissolving type anti-reflux ureteral stent | |
| CN208974936U (en) | A kind of catheter | |
| WO2023217269A1 (en) | Stent and implantation device thereof | |
| CN209154828U (en) | A kind of dual firmness superslide J-type conduit | |
| CN109464738A (en) | A kind of catheter and Male urethral catheter | |
| CN209529882U (en) | A kind of bladder irrigation catheter | |
| CN201752531U (en) | Unidirectional drainage ureter stent | |
| CN104415449A (en) | Bladder irrigation anti-blocking catheter | |
| CN109602968A (en) | A kind of self-loopa bladder irrigator | |
| CN209286463U (en) | A kind of catheter | |
| CN111134919B (en) | Magnetic suction tube drawing type ureteral stent | |
| CN112245774A (en) | Ureteral stent tube kit and use method thereof | |
| CN204655755U (en) | A kind of visual catheter | |
| CN203971142U (en) | Bladder irrigation blockage resisting catheter | |
| CN209019721U (en) | Catheter with swelling bag | |
| CN111956938A (en) | Practical catheter | |
| CN209108220U (en) | A kind of end is dissolvable to arrange double J pipe with line certainly | |
| CN102772849B (en) | Balloon catheter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |