CN109107022A - Stricture dilation catheter - Google Patents
Stricture dilation catheter Download PDFInfo
- Publication number
- CN109107022A CN109107022A CN201810869252.6A CN201810869252A CN109107022A CN 109107022 A CN109107022 A CN 109107022A CN 201810869252 A CN201810869252 A CN 201810869252A CN 109107022 A CN109107022 A CN 109107022A
- Authority
- CN
- China
- Prior art keywords
- expansion
- guide
- item
- conduit
- sliding sleeve
- 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.)
- Granted
Links
- 208000031481 Pathologic Constriction Diseases 0.000 title claims abstract description 24
- 230000010339 dilation Effects 0.000 title claims abstract description 23
- 210000002700 urine Anatomy 0.000 claims description 68
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000002627 tracheal intubation Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 210000003708 urethra Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 4
- 210000003932 urinary bladder Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 1
- 208000034656 Contusions Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009519 contusion Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 208000019206 urinary tract infection 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- 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
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- 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
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10181—Means for forcing inflation fluid into the balloon
- A61M25/10183—Compressible bulbs
-
- 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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- 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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
- A61M2029/025—Dilators made of swellable material characterised by the guiding element
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0496—Urine
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention provides a kind of stricture dilation catheter, including conduit and expansion guide, one end of the conduit is equipped with urethral catheterization hole, conduit is placed on outside expansion guide, the expansion guide includes guide main body, expansion body, guide seat and sliding sleeve, the guide main body successively includes guidance part, expansion body portion and guiding core bar, sliding sleeve sliding is placed on guiding core bar, guiding core bar is connected with guide seat, the expansion body is set to expansion body portion, the expansion body includes no less than 3 groups of expansion skeletons, the expansion skeleton includes the first expansion item and the second expansion item, one end of first expansion item and guidance part are hinged, one end of second expansion item and the middle part of the first expansion item are hinged, the other end of second expansion item and the end of sliding sleeve are hinged, the length of the guiding core bar is not less than the length of conduit.The beneficial effects of the invention are as follows due to the adoption of the above technical scheme, new mode is provided for the intubation of catheter, intubation resistance is small, and patient suffering is small.
Description
Technical field
The invention belongs to the field of medical instrument technology, especially a kind of urethral catheterization enlargement of pipe guide.
Background technique
As clinical common medical instrument, catheter is after being per urethram placed in human body by urine from bladder drainage to body
Outside, main function is accurate recording urine volume, convenient for drainage and flushing etc., is played a significant role in clinic.
Catheter material mainly has silica gel, rubber, EVA, PVC etc., and head end and conduit are partially soft.But some patients are because of urine
Situations such as road is narrow, hyperplasia of prostate, canceration, neck of urinary bladder hardening causes urethra internal resistance bigger than normal, greatly increases and sets pipe difficulty.It is existing
There is clinical catheterization usually after disinfection orificium urethrae externum and surrounding tissue on the other hand orificium urethrae externum is fixed, another hand is direct or uses
Tweezers etc. hold catheter, are inserted into from urethral orifice, when facing resistance bending and narrow situation, then need more firmly to be placed in, to trouble
Person brings huge pain, causes the damage of mucous membrane of urethra, causes the destruction of urologic structure, increases the risk of urinary tract infection.
It is had the following problems during the catheter merging of existing clinic: when catheter head top marches at ankylurethria
When need to increase external force propulsion, shear action can occur for apical head and stenosis urethra, even by narrow urethra, in urethra
Film also suffers from serious contusion and creates conditions for microorganism infection, urethral catheterization tube outer surface coating lubricating oil etc., narrow in reply urethra
It produces little effect when narrow.
A kind of expansion guide catheter of the disclosure of the invention of application number 2009200275009 comprising expansion guide
And catheter, interior be equipped with of catheter expand guide, and first expansion guide is inserted into catheter, has catheter centainly
Rigidity is extracted out from catheter after catheter is inserted into bladder, then by expansion guide.
However, above-mentioned catheter intubation problem encountered is only to limit to very much even if there is the presence of expansion guide
Degree on alleviated, there is no fundamentally reduce catheter be intubated resistance.
Summary of the invention
The object of the present invention is to provide it is a kind of the object of the present invention is to provide it is a kind of with expansion guide catheter, especially
Which solve the big problems of resistance at the top of catheter when catheter intubation.
The technical scheme is that
A kind of stricture dilation catheter, including conduit and expansion guide, one end of the conduit are equipped with urethral catheterization hole, conduit
It is placed on outside expansion guide, the expansion guide includes guide main body, expansion body, guide seat and sliding sleeve, institute
Stating guide main body successively includes guidance part, expansion body portion and guiding core bar, and sliding sleeve sliding is placed on guiding core bar, guides core
Bar is connected with guide seat, and the expansion body is set to expansion body portion, and the expansion body includes no less than 3 groups of expansion skeletons, institute
Stating expansion skeleton includes the first expansion item and the second expansion item, and one end of the first expansion item and guidance part are hinged, the second expansion item
One end with first expansion item middle part it is hinged, second expansion item the other end and sliding sleeve end it is hinged, the guiding
The length of core bar is not less than the length of conduit.
Expansion guide is inserted into conduit when use, makes the guidance part for expanding guide and expansion body portion from catheter proximal end
Urethral catheterization hole stretch out, the front of guide main body is provided with the extension fixture of umbrella, extension fixture is by being placed on guiding core bar
External sliding sleeve starting, in use, operator is by the opposite guiding core bar forward slip of sliding sleeve, sliding sleeve is along axis
Direction squeezes the expansion body for being located at expansion body portion, and the second expansion item of expansion body is subjected to displacement under the driving of sliding sleeve, the
Two expansion item driving the first expansion items, make multiple groups first expand item and strut around guide main body, support urethral wall, lead for expansion
Path has been dredged in the advance of catheter outside lead device.
The expansion body portion be equipped with no less than 1 be parallel to expansion guide axis track groove, the sliding sleeve with
The connected tip inside of second expansion item is equipped with the protrusion matched with track groove.
Optionally, the tip inside that the sliding sleeve is connected with the second expansion item is equipped with no less than 1 and is parallel to expansion
The track groove of guide axis, the expansion body portion are equipped with the protrusion matched with track groove.
Sliding sleeve and guide main body are slim-lined construction, and when sliding relatively, i.e., sliding sleeve is squeezing expansion body
When, sliding sleeve, which is likely to occur, to rotate in a circumferential direction, it is possible to drive expansion body to rotate in a circumferential direction, to cause expansion body can not
Expand into ideal form.Therefore, the present invention is equipped with relative orbit, anti-sliding stop between expansion body portion and the end of sliding sleeve
Casing relative distension guide rotates.Relative orbit includes track groove and protrusion, and track groove can be set in expansion body portion
Also it can be set on sliding sleeve, corresponding, protrusion is set on sliding sleeve or expansion body portion.
Urine drainage lumen is equipped in the conduit, urine drainage lumen one end is connected with urethral catheterization hole, urine drainage lumen it is another
One end is connected with conduit far from the port of urethral catheterization hole one end, and the urine drainage lumen is equipped with resistance far from one end inner wall of urethral catheterization hole
Every the diaphragm of urine.The conduit is equipped with urine observation window at diaphragm on the side wall of urethral catheterization hole side.
Optionally, the size of the diaphragm is matched with the size of urine drainage lumen, and the diaphragm middle part is equipped with and main body
The circular hole that portion's outer diameter matches.
Optionally, the diaphragm is the valve of no less than 2 valves.
Because of functional requirements, it is typically provided in conduit and is respectively used to urethral catheterization, air inlet, into the plurality of passages of the functions such as medicine, originally
In application, it is intracavitary that expansion guide is set to the urine drainage for urethral catheterization in conduit.Observation window is set at urine drainage lumen
The success or not of catheter intubation can be easily observed, when being intubated successfully, urine is flowed down from bladder along urine drainage lumen, stream
Urine can be observed to urine observation window, meanwhile, cooperation diaphragm can be effective in the case where expanding the unpumped situation of guide
Avoid urine flow out conduit, prevent urine from polluting.
The expansion external surface is equipped with the elastic covering film for household with expansion mates.The length of the elastic covering film for household and first
The length of expansion item matches, and the inner sidewall of the elastic covering film for household is fixedly connected with the first expansion item.Elastic covering film for household increase expansion
The contact area of body and urethra reduces pressure, reduces expansion body and expands the sense of discomfort caused by patient.
The guide seat includes guide seat lower part, guide seat top and the block set for being placed on guide seat top, institute
It states block set and is equipped with the circular hole matched with guiding core bar diameter close to guide body side, the diameter of the circular hole is less than sliding
The diameter of casing.Block set and guide seat top opposite can be slided, and guide main body passes through circular hole and fixes with guide seat top,
Block set with respect to guide seat top slide when, push casing move forward, guide seat and block set outer diameter are larger, convenient for pair
Expansion guide is operated.
Preferably, the guide seat outer surface of upper is equipped with the first screw thread, and set base inner surface is equipped with and the first screw thread phase
Second screw thread of cooperation.Make block set relative to guide seat ionized motion by screw thread, it can also be effectively to the cunning advanced
Dynamic casing is limited, and the sliding sleeve of advance has the tendency that reset under the reaction of expansion body, after limit, can make operator
Vacate the operation that both hands carry out catheter.
The ratio between the length of the first expansion item and the outer diameter of conduit are 3:2.After expansion body expansion, the diameter of expansion body is wanted
Greater than the outer diameter of conduit, so that the advance for catheter provides space.
The diameter of the urethral catheterization hole is greater than the outer diameter of guide main body.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention
Fig. 2 is the structural schematic diagram of the unexpanded expansion guide of expansion body
Fig. 3 is the structural schematic diagram of expansion guide after expansion body expansion
Fig. 4 is the schematic diagram in Fig. 3 at A
Fig. 5 is the schematic diagram in Fig. 3 at B
Fig. 6 is the cross-sectional view in Fig. 1 at C
In figure:
1, guide main body 2, expansion body 3, guide seat
4, sliding sleeve 11, guidance part 12, expansion body portion
13, guiding core bar 21, first expands item 22, second and expands item
23, elastic covering film for household 31, guide seat lower part 32, guide seat top
33, block set 5, conduit 51, urethral catheterization hole
52, diaphragm 53, urine observation window
Specific embodiment
Embodiment 1
A kind of stricture dilation catheter, including conduit 5 and expansion guide, one end of the conduit 5 are equipped with urethral catheterization hole 51,
Conduit 5 is placed on outside expansion guide, and the expansion guide includes guide main body 1, expansion body 2, guide seat 3 and sliding
Casing 4, the guide main body 1 successively include guidance part 11, expansion body portion 12 and guiding core bar 13,4 sliding sleeve of sliding sleeve
In guiding core bar 13, guiding core bar 13 is connected with guide seat 3, and the expansion body 2 is set to expansion body portion 12, the expansion body
2 include no less than 3 groups of expansion skeletons, and the expansion skeleton includes the first expansion item 21 and the second expansion item 22, the first expansion item
21 one end and guidance part 11 are hinged, and one end of the second expansion item 22 and the middle part of the first expansion item 21 are hinged, the second expansion item
The end of 22 other end and sliding sleeve 4 is hinged, and the length of the guiding core bar 13 is not less than the length of conduit 4.
The expansion body portion 12 is equipped with no less than 1 track groove for being parallel to expansion guide axis, the sliding sleeve 4
The tip inside being connected with the second expansion item 22 is equipped with the protrusion matched with track groove.
It is equipped with urine drainage lumen in the conduit 5, urine drainage lumen one end is connected with urethral catheterization hole 51, urine drainage lumen
The other end is connected with conduit 5 far from the port of 51 one end of urethral catheterization hole, one end inner wall of the urine drainage lumen far from urethral catheterization hole
Diaphragm 52 equipped with barrier urine.
The conduit 5 is equipped with urine observation window 53 at diaphragm 52 on the side wall of 51 side of urethral catheterization hole.
The size of the diaphragm 52 is matched with the size of urine drainage lumen, in the middle part of the diaphragm 52 be equipped with outside main part
The circular hole that diameter matches.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The length of the elastic covering film for household is matched with the length of the first expansion item 21, the inner sidewall of the elastic covering film for household and the
One expansion item 21 is fixedly connected.
The guide seat 3 is including guide seat lower part 31, guide seat top 32 and is placed on guide seat top 32
Block set 33, the block set 33 are equipped with the circular hole matched with guiding 13 diameter of core bar, the circular hole close to 1 side of guide main body
Diameter be less than sliding sleeve 4 diameter.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The ratio between the length of the first expansion item 21 and the outer diameter of conduit 5 are 3:2.
The diameter of the urethral catheterization hole 51 is greater than the outer diameter of guide main body 1.
Embodiment 2
A kind of stricture dilation catheter, including conduit 5 and expansion guide, one end of the conduit 5 are equipped with urethral catheterization hole 51,
Conduit 5 is placed on outside expansion guide, and the expansion guide includes guide main body 1, expansion body 2, guide seat 3 and sliding
Casing 4, the guide main body 1 successively include guidance part 11, expansion body portion 12 and guiding core bar 13,4 sliding sleeve of sliding sleeve
In guiding core bar 13, guiding core bar 13 is connected with guide seat 3, and the expansion body 2 is set to expansion body portion 12, the expansion body
2 include no less than 3 groups of expansion skeletons, and the expansion skeleton includes the first expansion item 21 and the second expansion item 22, the first expansion item
21 one end and guidance part 11 are hinged, and one end of the second expansion item 22 and the middle part of the first expansion item 21 are hinged, the second expansion item
The end of 22 other end and sliding sleeve 4 is hinged, and the length of the guiding core bar 13 is not less than the length of conduit 4.
The tip inside that the sliding sleeve 4 is connected with the second expansion item 22 is equipped with no less than 1 and is parallel to expansion guiding
The track groove of device axis, the expansion body portion 12 are equipped with the protrusion matched with track groove.
It is equipped with urine drainage lumen in the conduit 5, urine drainage lumen one end is connected with urethral catheterization hole 51, urine drainage lumen
The other end is connected with conduit 5 far from the port of 51 one end of urethral catheterization hole, one end inner wall of the urine drainage lumen far from urethral catheterization hole
Diaphragm 52 equipped with barrier urine.
The conduit 5 is equipped with urine observation window 53 at diaphragm 52 on the side wall of 51 side of urethral catheterization hole.
The size of the diaphragm 52 is matched with the size of urine drainage lumen, in the middle part of the diaphragm 52 be equipped with outside main part
The circular hole that diameter matches.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The length of the elastic covering film for household is matched with the length of the first expansion item 21, the inner sidewall of the elastic covering film for household and the
One expansion item 21 is fixedly connected.
The guide seat 3 is including guide seat lower part 31, guide seat top 32 and is placed on guide seat top 32
Block set 33, the block set 33 are equipped with the circular hole matched with guiding 13 diameter of core bar, the circular hole close to 1 side of guide main body
Diameter be less than sliding sleeve 4 diameter.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The ratio between the length of the first expansion item 21 and the outer diameter of conduit 5 are 3:2.
The diameter of the urethral catheterization hole 51 is greater than the outer diameter of guide main body 1.
Embodiment 3
A kind of stricture dilation catheter, including conduit 5 and expansion guide, one end of the conduit 5 are equipped with urethral catheterization hole 51,
Conduit 5 is placed on outside expansion guide, and the expansion guide includes guide main body 1, expansion body 2, guide seat 3 and sliding
Casing 4, the guide main body 1 successively include guidance part 11, expansion body portion 12 and guiding core bar 13,4 sliding sleeve of sliding sleeve
In guiding core bar 13, guiding core bar 13 is connected with guide seat 3, and the expansion body 2 is set to expansion body portion 12, the expansion body
2 include no less than 3 groups of expansion skeletons, and the expansion skeleton includes the first expansion item 21 and the second expansion item 22, the first expansion item
21 one end and guidance part 11 are hinged, and one end of the second expansion item 22 and the middle part of the first expansion item 21 are hinged, the second expansion item
The end of 22 other end and sliding sleeve 4 is hinged, and the length of the guiding core bar 13 is not less than the length of conduit 4.
The expansion body portion 12 is equipped with no less than 1 track groove for being parallel to expansion guide axis, the sliding sleeve 4
The tip inside being connected with the second expansion item 22 is equipped with the protrusion matched with track groove.
It is equipped with urine drainage lumen in the conduit 5, urine drainage lumen one end is connected with urethral catheterization hole 51, urine drainage lumen
The other end is connected with conduit 5 far from the port of 51 one end of urethral catheterization hole, one end inner wall of the urine drainage lumen far from urethral catheterization hole
Diaphragm 52 equipped with barrier urine.
The conduit 5 is equipped with urine observation window 53 at diaphragm 52 on the side wall of 51 side of urethral catheterization hole.
The diaphragm 52 is the valve of no less than 2 valves.Two valves cooperate and are pressed against main part, by urine drainage
Chamber is divided into 2 disconnected cavitys.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The length of the elastic covering film for household is matched with the length of the first expansion item 21, the inner sidewall of the elastic covering film for household and the
One expansion item 21 is fixedly connected.
The guide seat 3 is including guide seat lower part 31, guide seat top 32 and is placed on guide seat top 32
Block set 33, the block set 33 are equipped with the circular hole matched with guiding 13 diameter of core bar, the circular hole close to 1 side of guide main body
Diameter be less than sliding sleeve 4 diameter.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The ratio between the length of the first expansion item 21 and the outer diameter of conduit 5 are 3:2.
The diameter of the urethral catheterization hole 51 is greater than the outer diameter of guide main body 1.
Embodiment 4
A kind of stricture dilation catheter, including conduit 5 and expansion guide, one end of the conduit 5 are equipped with urethral catheterization hole 51,
Conduit 5 is placed on outside expansion guide, and the expansion guide includes guide main body 1, expansion body 2, guide seat 3 and sliding
Casing 4, the guide main body 1 successively include guidance part 11, expansion body portion 12 and guiding core bar 13,4 sliding sleeve of sliding sleeve
In guiding core bar 13, guiding core bar 13 is connected with guide seat 3, and the expansion body 2 is set to expansion body portion 12, the expansion body
2 include no less than 3 groups of expansion skeletons, and the expansion skeleton includes the first expansion item 21 and the second expansion item 22, the first expansion item
21 one end and guidance part 11 are hinged, and one end of the second expansion item 22 and the middle part of the first expansion item 21 are hinged, the second expansion item
The end of 22 other end and sliding sleeve 4 is hinged, and the length of the guiding core bar 13 is not less than the length of conduit 4.
The expansion body portion 12 is equipped with no less than 1 track groove for being parallel to expansion guide axis, the sliding sleeve 4
The tip inside being connected with the second expansion item 22 is equipped with the protrusion matched with track groove.
It is equipped with urine drainage lumen in the conduit 5, urine drainage lumen one end is connected with urethral catheterization hole 51, urine drainage lumen
The other end is connected with conduit 5 far from the port of 51 one end of urethral catheterization hole, one end inner wall of the urine drainage lumen far from urethral catheterization hole
Diaphragm 52 equipped with barrier urine.
The conduit 5 is equipped with urine observation window 53 at diaphragm 52 on the side wall of 51 side of urethral catheterization hole.
The size of the diaphragm 52 is matched with the size of urine drainage lumen, in the middle part of the diaphragm 52 be equipped with outside main part
The circular hole that diameter matches.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The length of the elastic covering film for household is matched with the length of the first expansion item 21, the inner sidewall of the elastic covering film for household and the
One expansion item 21 is fixedly connected.
The guide seat 3 is including guide seat lower part 31, guide seat top 32 and is placed on guide seat top 32
Block set 33, the block set 33 are equipped with the circular hole matched with guiding 13 diameter of core bar, the circular hole close to 1 side of guide main body
Diameter be less than sliding sleeve 4 diameter.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The block set 33 is equipped with bellows, the height of the bellows and the length of sliding sleeve 4 close to the end face of conduit 5
The sum of degree is matched with the length of guiding core bar 13.
When block set 33 drives sliding sleeve 4 to move forward, positioned at conduit 5 and block set 33 between the end face of conduit 5
Bellows is compressed, the reset trend of the bellows of compression, and conduit 5 is pushed to move forward, and operator need not carry out 5 phase of conduit again
To the operation that guide main body 1 pushes, to keep intubation more convenient.
The ratio between the length of the first expansion item 21 and the outer diameter of conduit 5 are 3:2.
The diameter of the urethral catheterization hole 51 is greater than the outer diameter of guide main body 1.
Embodiment 5
A kind of stricture dilation catheter, including conduit 5 and expansion guide, one end of the conduit 5 are equipped with urethral catheterization hole 51,
Conduit 5 is placed on outside expansion guide, and the expansion guide includes guide main body 1, expansion body 2, guide seat 3 and sliding
Casing 4, the guide main body 1 successively include guidance part 11, expansion body portion 12 and guiding core bar 13,4 sliding sleeve of sliding sleeve
In guiding core bar 13, guiding core bar 13 is connected with guide seat 3, and the expansion body 2 is set to expansion body portion 12, the expansion body
2 include no less than 3 groups of expansion skeletons, and the expansion skeleton includes the first expansion item 21 and the second expansion item 22, the first expansion item
21 one end and guidance part 11 are hinged, and one end of the second expansion item 22 and the middle part of the first expansion item 21 are hinged, the second expansion item
The end of 22 other end and sliding sleeve 4 is hinged, and the length of the guiding core bar 13 is not less than the length of conduit 4.
The expansion body portion 12 is equipped with no less than 1 track groove for being parallel to expansion guide axis, the sliding sleeve 4
The tip inside being connected with the second expansion item 22 is equipped with the protrusion matched with track groove.
It is equipped with urine drainage lumen in the conduit 5, urine drainage lumen one end is connected with urethral catheterization hole 51, urine drainage lumen
The other end is connected with conduit 5 far from the port of 51 one end of urethral catheterization hole, one end inner wall of the urine drainage lumen far from urethral catheterization hole
Diaphragm 52 equipped with barrier urine.
The conduit 5 is equipped with urine observation window 53 at diaphragm 52 on the side wall of 51 side of urethral catheterization hole.
The size of the diaphragm 52 is matched with the size of urine drainage lumen, in the middle part of the diaphragm 52 be equipped with outside main part
The circular hole that diameter matches.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The length of the elastic covering film for household is matched with the length of the first expansion item 21, the inner sidewall of the elastic covering film for household and the
One expansion item 21 is fixedly connected.
The guide seat 3 is including guide seat lower part 31, guide seat top 32 and is placed on guide seat top 32
Block set 33, the block set 33 are equipped with the circular hole matched with guiding 13 diameter of core bar, the circular hole close to 1 side of guide main body
Diameter be less than sliding sleeve 4 diameter.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The block set 33 is equipped with spring, the Extending Length of the spring and the length of sliding sleeve 4 close to the end face of conduit 5
The sum of degree is matched with the length of guiding core bar 13.
When block set 33 drives sliding sleeve 4 to move forward, positioned at conduit 5 and block set 33 between the end face of conduit 5
Spring is compressed, the reset trend of the spring of compression, and conduit 5 is pushed to move forward, and operator need not carry out conduit again and lead relatively
The operation that lead device main body pushes, to keep intubation more convenient.
The ratio between the length of the first expansion item 21 and the outer diameter of conduit 5 are 3:2.
The diameter of the urethral catheterization hole 51 is greater than the outer diameter of guide main body 1.
Embodiment 6
A kind of stricture dilation catheter, including conduit 5 and expansion guide, one end of the conduit 5 are equipped with urethral catheterization hole 51,
Conduit 5 is placed on outside expansion guide, and the expansion guide includes guide main body 1, expansion body 2, guide seat 3 and sliding
Casing 4, the guide main body 1 successively include guidance part 11, expansion body portion 12 and guiding core bar 13,4 sliding sleeve of sliding sleeve
In guiding core bar 13, guiding core bar 13 is connected with guide seat 3, and the expansion body 2 is set to expansion body portion 12, the expansion body
2 include no less than 3 groups of expansion skeletons, and the expansion skeleton includes the first expansion item 21 and the second expansion item 22, the first expansion item
21 one end and guidance part 11 are hinged, and one end of the second expansion item 22 and the middle part of the first expansion item 21 are hinged, the second expansion item
The end of 22 other end and sliding sleeve 4 is hinged, and the length of the guiding core bar 13 is not less than the length of conduit 4.
The expansion body portion 12 is equipped with no less than 1 track groove for being parallel to expansion guide axis, the sliding sleeve 4
The tip inside being connected with the second expansion item 22 is equipped with the protrusion matched with track groove.
It is equipped with urine drainage lumen in the conduit 5, urine drainage lumen one end is connected with urethral catheterization hole 51, urine drainage lumen
The other end is connected with conduit 5 far from the port of 51 one end of urethral catheterization hole, one end inner wall of the urine drainage lumen far from urethral catheterization hole
Diaphragm 52 equipped with barrier urine.
The conduit 5 is equipped with urine observation window 53 at diaphragm 52 on the side wall of 51 side of urethral catheterization hole.
The size of the diaphragm 52 is matched with the size of urine drainage lumen, in the middle part of the diaphragm 52 be equipped with outside main part
The circular hole that diameter matches.
The diaphragm 52 is the valve of no less than 2 valves.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The length of the elastic covering film for household is matched with the length of the first expansion item 21, the inner sidewall of the elastic covering film for household and the
One expansion item 21 is fixedly connected.
The guide seat 3 is including guide seat lower part 31, guide seat top 32 and is placed on guide seat top 32
Block set 33, the block set 33 are equipped with the circular hole matched with guiding 13 diameter of core bar, the circular hole close to 1 side of guide main body
Diameter be less than sliding sleeve 4 diameter.
The block set 33 is slidably connected with guide seat top 32, and guide seat top 32 is equipped with limiting device.The limit
Position device includes the gag lever post for running through guide seat top 32 along 32 radial direction of guide seat top, the length of the gag lever post
Greater than the diameter on guide seat top 32, the middle part of the gag lever post is equipped with elastomer.
For guide main body 1 by 2 dilating urethra of expansion body, final effect is to make to be placed on the tube body outside expansion guide
5 advance.When expansion body 2 is supported out, by the extruding of urethral wall, the trend of the oriented contract of expansion body 2, sliding sleeve 4
Have the tendency that resetting backward, block set 33 is in contact with sliding sleeve 4, and block set 33 also has the tendency that resetting backward, at this time, it may be necessary to will
Sliding sleeve 4 and guide main body 1 are relatively fixed, that is, need block set 33 and 32 position of guide seat top is opposite solid
It is fixed, to keep the deformation of expansion body 2.It is equipped with elastomer in limiting device, under normal condition, elastomer is compressed, gag lever post
Length be equal to block set 33 internal diameter, gag lever post is located in block set 33, when 33 forward slip of block set, 33 end of block set and gag lever post
The length of separation, the expansion of gag lever post elastomer, gag lever post is greater than 33 internal diameter of block set, plays restriction effect to the reset of block set 33.
The ratio between the length of the first expansion item 21 and the outer diameter of conduit 5 are 3:2.
The diameter of the urethral catheterization hole 51 is greater than the outer diameter of guide main body 1.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (13)
1. a kind of stricture dilation catheter, including conduit and expansion guide, one end of the conduit are equipped with urethral catheterization hole, sheathed catheter
Outside expansion guide, it is characterised in that: the expansion guide includes guide main body, expansion body, guide seat and cunning
Dynamic casing, the guide main body successively include guidance part, expansion body portion and guiding core bar, and sliding sleeve sliding is placed on guiding core
Bar, guiding core bar are connected with guide seat, and the expansion body is set to expansion body portion, and the expansion body includes no less than 3 groups of expansions
Skeleton is opened, the expansion skeleton includes the first expansion item and the second expansion item, and one end of the first expansion item and guidance part are hinged, the
One end of two expansion items and the middle part of the first expansion item are hinged, and the other end of the second expansion item and the end of sliding sleeve are hinged,
The length of the guiding core bar is not less than the length of conduit.
2. stricture dilation catheter according to claim 1, it is characterised in that: the expansion body portion is equipped with no less than 1
It is parallel to the track groove of expansion guide axis, the tip inside that the sliding sleeve is connected with the second expansion item is equipped with and track
The protrusion that slot matches.
3. stricture dilation catheter according to claim 1, it is characterised in that: the sliding sleeve and the second expansion item phase
Tip inside even is equipped with no less than 1 track groove for being parallel to expansion guide axis, and the expansion body portion is equipped with and track
The protrusion that slot matches.
4. stricture dilation catheter according to claim 1, it is characterised in that: urine drainage lumen is equipped in the conduit,
Urine drainage lumen one end is connected with urethral catheterization hole, and the other end of urine drainage lumen is connected with conduit far from the port of urethral catheterization hole one end
Logical, the urine drainage lumen is equipped with the diaphragm of barrier urine far from one end inner wall of urethral catheterization hole.
5. stricture dilation catheter according to claim 4, it is characterised in that: the conduit is at diaphragm close to urethral catheterization hole
The side wall of side is equipped with urine observation window.
6. stricture dilation catheter according to claim 5, it is characterised in that: the size and urine drainage lumen of the diaphragm
Size match, the circular hole matched with main part outer diameter is equipped in the middle part of the diaphragm.
7. stricture dilation catheter according to claim 5, it is characterised in that: the diaphragm is the valve of no less than 2 valves.
8. stricture dilation catheter according to claim 1, it is characterised in that: the expansion external surface is equipped with and expansion
The elastic covering film for household of mates.
9. stricture dilation catheter according to claim 8, it is characterised in that: the length of the elastic covering film for household expands with first
The length for opening item matches, and the inner sidewall of the elastic covering film for household is fixedly connected with the first expansion item.
10. stricture dilation catheter according to claim 1, it is characterised in that: the guide seat includes guide seat
Lower part, guide seat top and the block set for being placed on guide seat top, the block set are equipped with and lead close to guide body side
Draw the circular hole that core bar diameter matches, the diameter of the circular hole is less than the diameter of sliding sleeve.
11. stricture dilation catheter according to claim 10, it is characterised in that: the guide seat outer surface of upper is set
There is the first screw thread, set base inner surface is equipped with the second screw thread matched with the first screw thread.
12. stricture dilation catheter according to claim 1, it is characterised in that: it is described first expansion item length with lead
The ratio between outer diameter of pipe is 3:2-3:1.
13. stricture dilation catheter according to claim 1, it is characterised in that: the diameter of the urethral catheterization hole is greater than guiding
The outer diameter of device main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869252.6A CN109107022B (en) | 2018-08-02 | 2018-08-02 | Stenosis dilating catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869252.6A CN109107022B (en) | 2018-08-02 | 2018-08-02 | Stenosis dilating catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109107022A true CN109107022A (en) | 2019-01-01 |
| CN109107022B CN109107022B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810869252.6A Active CN109107022B (en) | 2018-08-02 | 2018-08-02 | Stenosis dilating catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109107022B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862500A (en) * | 2010-04-27 | 2010-10-20 | 南京明基医院有限公司 | Locally expanding balloon catheter |
| US20130144272A1 (en) * | 2010-06-14 | 2013-06-06 | Christopher J. Cutie | Stricture treatment and drainage catheter |
| CN107050629A (en) * | 2017-01-23 | 2017-08-18 | 山东省立医院 | A kind of urethral dilatation drainage system and application method |
| CN209967375U (en) * | 2018-08-02 | 2020-01-21 | 山东威高集团医用高分子制品股份有限公司 | Narrow dilating catheter |
-
2018
- 2018-08-02 CN CN201810869252.6A patent/CN109107022B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862500A (en) * | 2010-04-27 | 2010-10-20 | 南京明基医院有限公司 | Locally expanding balloon catheter |
| US20130144272A1 (en) * | 2010-06-14 | 2013-06-06 | Christopher J. Cutie | Stricture treatment and drainage catheter |
| CN107050629A (en) * | 2017-01-23 | 2017-08-18 | 山东省立医院 | A kind of urethral dilatation drainage system and application method |
| CN209967375U (en) * | 2018-08-02 | 2020-01-21 | 山东威高集团医用高分子制品股份有限公司 | Narrow dilating catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109107022B (en) | 2024-04-16 |
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