CN112915361A - Multilayer air bag dilating catheter for hepatobiliary surgery - Google Patents
Multilayer air bag dilating catheter for hepatobiliary surgery Download PDFInfo
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- CN112915361A CN112915361A CN202110090692.3A CN202110090692A CN112915361A CN 112915361 A CN112915361 A CN 112915361A CN 202110090692 A CN202110090692 A CN 202110090692A CN 112915361 A CN112915361 A CN 112915361A
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- 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
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- 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
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Abstract
The invention relates to the technical field of multilayer balloon dilatation catheters, in particular to a multilayer balloon dilatation catheter for hepatobiliary surgery, which comprises a device main body, wherein the device main body comprises an outer catheter, notches are formed in the inner walls of the upper side and the lower side of the outer catheter, inner catheters penetrate through the upper side and the lower side of the outer catheter, a first notch is formed in the inner wall above the right side of the outer catheter, an air outlet pipe is inserted into the first notch, the left end of the air outlet pipe is formed in the inner wall above the right side of the inner catheter, a cap is sleeved at the right end of the air outlet pipe, a first balloon is fixedly connected to the bottom end of the inner catheter, a second balloon is sleeved on the outer surface of the first. The outer guide pipe can be kept stable in the pushing process through the limiting effect of the sleeve, and the problem that the guide pipe is deviated due to the fact that the guide pipe is not supported in the pushing process is effectively solved through the device.
Description
Technical Field
The invention relates to the technical field of multilayer balloon dilatation catheters, in particular to a multilayer balloon dilatation catheter for hepatobiliary surgery.
Background
Along with the transformation of health concepts of Chinese people caused by the progress of socioeconomic, medical principles and methods are continuously improved, supplemented and perfected, and disease treatment modes and specifications are remodeled, so that major disease treatment theories such as hepatobiliary tumors and the like are continuously innovated and broken through, major diseases which seriously threaten the health of Chinese people, such as hepatocellular carcinoma, hepatobiliary calculus, cirrhosis after hepatitis, acute liver failure caused by severe hepatitis and the like, are mainly researched in hepatobiliary surgery, particularly in hepatobiliary surgery, a multilayer balloon dilatation catheter is mostly applied, the multilayer balloon dilatation catheter is pushed into a bile duct and then is used for achieving the purpose of dilatation through a balloon, and therefore the existing multilayer balloon dilatation catheter for hepatobiliary surgery can meet the use requirements of people, and the following problems still exist.
The existing multilayer air bag expanding catheter for hepatobiliary surgery is soft and does not support the catheter in pushing, so that the catheter is likely to deviate in the pushing process, an error is caused in the expanding position, the treatment time of a patient is prolonged, the catheter is not fixed after being pushed into a biliary tract, the catheter is likely to shake in the treatment process, the catheter slides and moves, and certain potential safety hazards exist, so that a novel multilayer air bag expanding catheter for hepatobiliary surgery is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to provide a multilayer balloon dilatation catheter for hepatobiliary surgery, which aims to solve the problem that the existing multilayer balloon dilatation catheter for hepatobiliary surgery proposed in the background art is soft and does not support the catheter during pushing, so that the catheter is deviated.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-layer air bag dilating catheter for hepatobiliary surgery comprises a main body of the device, wherein the main body of the device comprises an outer catheter, notches are formed in the inner walls of the upper side and the lower side of the outer catheter, an inner catheter penetrates through the upper side and the lower side of the outer catheter, a first groove is formed in the inner wall above the right side of the outer catheter, an air outlet pipe is inserted into the first groove, the left end of the air outlet pipe is formed in the inner wall above the right side of the inner catheter, a cap is sleeved at the right end of the air outlet pipe, a first air bag is fixedly connected to the bottom end of the inner catheter, a second air bag is sleeved on the outer surface of the first air bag, a fixed block is fixedly connected to the top end of the second air bag, the bottom end of the outer catheter is fixedly connected to a hole formed in the inner wall at the top end of the, the inner walls of the bottoms of the two groups of the supporting rods are both provided with second grooves, the inner walls of the tops of the second grooves are both provided with first sliding chutes, the interiors of the two groups of the first sliding chutes are both connected with first sliding blocks in a sliding manner, the bottoms of the first sliding blocks are both fixedly connected with moving blocks, the interiors of the two groups of the moving blocks are both connected with threaded rods through threads, one ends of the threaded rods, far away from the sleeve, are both movably connected with the inner walls of the second grooves through bearings, one ends of the two groups of the threaded rods, near the sleeve, are both movably connected with first connecting blocks through bearings, the other sides of the first connecting blocks are both fixedly connected with the inner walls of the second grooves, the outer surfaces of the two groups of the threaded rods are both fixedly connected with first bevel gears, the outer surfaces of the front ends of the first bevel gears are both meshed with second bevel gears, two sets of the equal fixedly connected with belt pulley of bull stick front end surface, it is two sets of the winding has the conveyer belt between the belt pulley, and branch bottom outer wall all has the bracing piece through pivot swing joint, and is two sets of the bracing piece bottom all has the sucking disc through pivot swing joint, and one side outer wall that outer pipe was kept away from to the bracing piece all has the hinge bar through pivot swing joint, and is two sets of the hinge bar other end all is through pivot swing joint at movable block bottom outer wall, and the branch bottom all sets up the through-hole of mutually supporting with the hinge bar.
Further, fixture includes the third fluting, and outer pipe both sides top inner wall has all seted up the third fluting, and is two sets of all fixedly connected with rack of third fluting inner wall, and the inside meshing that all has the tooth piece of rack, two sets of all fixedly connected with carriage release lever in one side that the rack was kept away from to the tooth piece, and the carriage release lever all runs through the slot hole that sleeve both sides inner wall was seted up through slide mechanism in, two sets of both sides outside fixedly connected with second connecting block about the carriage release lever, and the first spring of all fixedly connected with in one side that the third fluting was kept away from to the second connecting block, four sets of all fixedly connected with driving lever in sleeve both sides inner wall, two sets of carriage release lever outside top all fixedly connected with driving lever.
Furthermore, the sliding mechanism comprises a second sliding groove and a second sliding block, the inner walls of the upper side and the lower side of the moving rod are provided with the second sliding groove, the second sliding grooves are connected with the second sliding block in a sliding mode, and the second sliding blocks are fixedly connected in the groove holes formed in the inner walls of the two sides of the sleeve.
Furthermore, a sealing mechanism is arranged in the hole formed in the inner wall of the top end of the fixing block and comprises a first sealing block, the inner walls of two sides of the hole formed in the inner wall of the top end of the fixing block are fixedly connected with the first sealing block, and a fourth notch is formed in the first sealing block.
Furthermore, the inner walls of the two groups of fourth grooves are fixedly connected with third springs at equal intervals.
Further, air cushions are glued between the inner portions of the two fourth grooves at equal intervals, and fifth grooves are formed in the air cushions.
Furthermore, second sealing blocks are glued to two sides of the top end of the outer catheter, and the inner sides of the second sealing blocks are attached to the outer walls of the two sides of the inner catheter.
Furthermore, the inner walls of the notches formed in the inner walls of the upper side and the lower side of the outer guide pipe are all glued with first sealing gaskets, the inner sides of the first sealing gaskets are all glued to the outer wall of the inner guide pipe, the inner walls of the first notches are all glued with second sealing gaskets, and the inner sides of the second sealing gaskets are all glued to the outer wall of the air outlet pipe.
Furthermore, the inner walls of the first grooves are glued with second sealing gaskets, and the inner sides of the second sealing gaskets are attached to the outer wall of the air outlet pipe.
Compared with the prior art, the invention has the beneficial effects that: the multilayer air bag expanding catheter for hepatobiliary surgery is provided with a sleeve, a support rod, a second groove, a first sliding block, a moving block, a threaded rod, a first connecting block, a first conical gear, a second conical gear, a rotating rod, a belt pulley, a conveying belt, a support rod, a sucker and an articulated rod, when the outer catheter, the inner catheter, the first air bag and the second air bag are required to be pushed into a bile duct, the rotating rod is firstly rotated, two groups of rotating rods simultaneously rotate under the conveying action of the belt pulley and the conveying belt at the moment, the second conical gear rotates along with the rotating rod at the moment, so that the first conical gear rotates along with the second conical gear, the threaded rod starts to rotate under the rotation of the first conical gear, the moving block starts to drive the rotating rod to move under the sliding action of the support rod and the first sliding block, and the support rod and the sucker move along with the articulated rod at the moment, the whole device is supported, the outer catheter is inserted into the sleeve to be pushed into the biliary tract, the outer catheter can be kept stable in the pushing process through the limiting effect of the sleeve, and the problem that the catheter is not supported in the pushing process to cause deviation is effectively solved through the device;
and the multilayer air bag expanding catheter for hepatobiliary surgery is simultaneously provided with a third open slot, a rack, a tooth block, a movable rod, a second connecting block, a first spring and a deflector rod, when the outer catheter is inserted into the sleeve, the deflector rod is pulled outwards, the outer catheter can be smoothly pushed downwards in the sleeve, after pushing is completed, the deflector rod is slowly loosened, at the moment, under the elastic action of the first spring, the movable rod drives the tooth block to be inserted into the third open slot, so that the tooth block and the rack are mutually meshed, the outer catheter can not continue to move downwards, in conclusion, the devices are tightly connected together through the structural matching, the catheter can be supported in the pushing process and can not easily deviate, and the catheter is fixed through the meshing between the rack and the tooth block, so that the catheter is effectively prevented from shaking in the treatment process, and the catheter can slide and move, the potential safety hazard exists.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic sectional elevation view of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention in use;
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure at C in FIG. 3 according to the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 3 according to the present invention;
FIG. 7 is an enlarged view of the structure at E in FIG. 1 according to the present invention;
fig. 8 is an enlarged view of the structure at F in fig. 7 according to the present invention.
In the figure: 111. an outer catheter; 112. an inner conduit; 113. a first slot; 114. an air outlet pipe; 115. capping; 116. a first air bag; 117. a second air bag; 118. a fixed block; 211. a sleeve; 212. a strut; 213. a second slot; 214. a first chute; 215. a first slider; 216. a moving block; 217. a threaded rod; 218. a first connection block; 219. a first bevel gear; 221. a second bevel gear; 222. a rotating rod; 223. a belt pulley; 224. a conveyor belt; 225. a support bar; 226. a suction cup; 227. a hinged lever; 311. a third slot is formed; 312. a rack; 313. a tooth block; 314. a travel bar; 315. a second connecting block; 316. a first spring; 317. a deflector rod; 318. a second chute; 319. a second slider; 321. a first seal block; 322. a fourth slot is formed; 323. a third spring; 324. an air cushion; 325. fifthly, slotting; 326. a second seal block; 327. a first gasket; 328. a second gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, an embodiment of the present invention: a multi-layer air bag dilating catheter for hepatobiliary surgery comprises a main body of the device, the main body of the device comprises an outer catheter 111, the inner walls of the upper side and the lower side of the outer catheter 111 are both provided with notches, the upper side and the lower side of the outer catheter 111 are provided with inner catheters 112, the inner wall of the upper right side of the outer catheter 111 is provided with a first notch 113, an air outlet pipe 114 is inserted into the first notch 113, the left end of the air outlet pipe 114 is provided with the inner wall of the upper right side of the inner catheter 112, the right end of the air outlet pipe 114 is sleeved with a cap 115, the bottom end of the inner catheter 112 is fixedly connected with a first air bag 116, the outer surface of the first air bag 116 is sleeved with a second air bag 117, the top end of the second air bag 117 is fixedly connected with a fixed block 118, the bottom end of the outer catheter 111 is fixedly connected in, the outer walls of both sides of the sleeve 211 are fixedly connected with supporting rods 212, the inner walls of the bottom ends of the two groups of supporting rods 212 are both provided with second slots 213, the inner walls of the top ends of the second slots 213 are both provided with first sliding grooves 214, the inner parts of the two groups of first sliding grooves 214 are both connected with first sliding blocks 215 in a sliding manner, the bottom ends of the first sliding blocks 215 are both fixedly connected with moving blocks 216, the inner parts of the two groups of moving blocks 216 are both connected with threaded rods 217 through threads, one ends of the threaded rods 217 far away from the sleeve 211 are both movably connected with the inner walls of the second slots 213 through bearings, one ends of the two groups of threaded rods 217 close to the sleeve 211 are both movably connected with first connecting blocks 218 through bearings, the other sides of the first connecting blocks 218 are both fixedly connected with the inner walls of the second slots 213, the outer surfaces of the two groups of threaded rods 217 are both fixedly connected with first, the rear ends of the rotating rods 222 are movably connected to the inner wall of the rear end of the first connecting block 218 through bearings, the outer surfaces of the front ends of the two sets of rotating rods 222 are fixedly connected with belt pulleys 223, a transmission belt 224 is wound between the two sets of belt pulleys 223, the outer walls of the bottom ends of the supporting rods 212 are movably connected with supporting rods 225 through rotating shafts, the bottom ends of the two sets of supporting rods 225 are movably connected with suckers 226 through rotating shafts, the outer wall of one side of the supporting rod 225 away from the outer guide tube 111 is movably connected with a hinge rod 227 through a rotating shaft, the other ends of the two sets of hinge rods 227 are movably connected to the outer wall of the bottom end of the moving block 216 through rotating shafts, the bottom ends of the supporting rods 212 are provided with through holes matched with the hinge rod 227, the clamping mechanism comprises third slots 311, the inner walls above the two sides of the outer guide, two sets of tooth blocks 313 keep away from all fixedly connected with carriage release lever 314 in one side of rack 312, and carriage release lever 314 all runs through the slotted hole that sleeve 211 both sides inner wall was seted up through slide mechanism in, the outside all fixedly connected with second connecting block 315 in both sides about two sets of carriage release lever 314, and the second connecting block 315 keeps away from all fixedly connected with first spring 316 in one side of third fluting 311, the all fixed connection of four sets of first spring 316 other ends is at sleeve 211 both sides inner wall, the all fixedly connected with driving lever 317 in two sets of carriage release lever 314 outside top.
The sliding mechanism comprises a second sliding groove 318 and a second sliding block 319, the inner walls of the upper side and the lower side of the moving rod 314 are provided with the second sliding grooves 318, the two groups of second sliding grooves 318 are connected with the second sliding blocks 319 in a sliding mode, the second sliding blocks 319 are fixedly connected in the groove holes formed in the inner walls of the two sides of the sleeve 211, and the moving rod 314 is enabled to be convenient to move by the arrangement of the second sliding grooves 318 and the second sliding blocks 319.
Be provided with sealing mechanism in the hole that fixed block 118 top inner wall was seted up, and sealing mechanism includes first sealed piece 321, the first sealed piece 321 of the equal fixedly connected with of hole both sides inner wall that fixed block 118 top inner wall was seted up, and the inside fourth fluting 322 that has all been seted up of first sealed piece 321 for improve its leakproofness when outer pipe 111 and fixed block 118 are connected through being provided with first sealed piece 321.
The third springs 323 are fixedly connected between the inner walls of the two sets of fourth grooves 322 at equal intervals, and the first sealing block 321 is attached to the outer conduit 111 more tightly when sealing the outer conduit 111 by the third springs 323.
The second sealing blocks 326 are glued to both sides of the top end of the outer conduit 111, the inner sides of the second sealing blocks 326 are glued to the outer walls of both sides of the inner conduit 112, and the second sealing blocks 326 are glued to both sides of the top end of the outer conduit 111, so that the sealing performance is improved when the inner conduit 112 is inserted into the outer conduit 111.
The inner walls of the notches formed in the inner walls of the upper side and the lower side of the outer guide pipe 111 are all glued with first sealing gaskets 327, the inner sides of the first sealing gaskets 327 are all glued to the outer wall of the inner guide pipe 112, the inner walls of the first grooves 113 are all glued with second sealing gaskets 328, the inner sides of the second sealing gaskets 328 are all glued to the outer wall of the air outlet pipe 114, and the first sealing gaskets 327 and the second sealing gaskets 328 are arranged, so that the whole device is more stable in the using period and cannot easily leak air.
The working principle is as follows: when the outer catheter 111, the inner catheter 112, the first air bag 116 and the second air bag 117 need to be pushed into the bile duct, the rotating rods 222 are rotated, the two groups of rotating rods 222 are rotated simultaneously under the transmission action of the belt pulley 223 and the transmission belt 224, the second bevel gear 221 is rotated along with the rotating rods 222, so that the first bevel gear 219 is rotated along with the second bevel gear 221, the threaded rod 217 is rotated along with the rotation of the first bevel gear 219, so that the moving block 216 is rotated along with the rotation of the threaded rod 217 under the sliding action of the supporting rod 212 and the first sliding block 215 to drive the hinge rod 227 to move, the supporting rod 225 and the suction cup 226 are moved along with the hinge rod 227, and the whole device is supported;
when the outer guide tube 111 is inserted into the sleeve 211, the shift lever 317 is shifted outwards, the outer guide tube 111 can be smoothly pushed downwards in the sleeve 211, after the pushing is completed, the shift lever 317 is slowly released, and at this time, under the elastic action of the first spring 316, the moving rod 314 drives the tooth block 313 to be inserted into the third open slot 311, so that the tooth block 313 and the rack 312 are engaged with each other, and at this time, the outer guide tube 111 cannot continue to move downwards, and the operation is finished.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A multi-layer air bag dilating catheter for hepatobiliary surgery comprises a main body of the device, wherein the main body of the device comprises an outer catheter (111), notches are formed in the inner walls of the upper side and the lower side of the outer catheter (111), an inner catheter (112) penetrates through the upper side and the lower side of the outer catheter (111), a first groove (113) is formed in the inner wall above the right side of the outer catheter (111), an air outlet pipe (114) is inserted into the first groove (113), the left end of the air outlet pipe (114) is formed in the inner wall above the right side of the inner catheter (112), a cover cap (115) is sleeved at the right end of the air outlet pipe (114), a first air bag (116) is fixedly connected to the bottom end of the inner catheter (112), a second air bag (117) is sleeved on the outer surface of the first air bag (116), a fixing block (118) is fixedly connected to the top end of the second air bag (117, the method is characterized in that: the outer surface of the outer guide pipe (111) is provided with a supporting mechanism, the supporting mechanism comprises a sleeve (211), the outer surface of the outer guide pipe (111) is sleeved with the sleeve (211) through a clamping mechanism, the outer walls of two sides of the sleeve (211) are fixedly connected with supporting rods (212), the inner walls of the bottom ends of the two groups of supporting rods (212) are respectively provided with a second open slot (213), the inner walls of the top ends of the second open slots (213) are respectively provided with a first sliding chute (214), the inner parts of the two groups of first sliding chutes (214) are respectively and slidably connected with a first sliding block (215), the bottom ends of the first sliding blocks (215) are respectively and fixedly connected with moving blocks (216), the inner parts of the two groups of moving blocks (216) are respectively and threadably connected with a threaded rod (217), one end, far away from the sleeve (211), of the threaded rod (217) is respectively and movably connected with the inner wall of the second, the other side of the first connecting block (218) is fixedly connected to the inner wall of the second groove (213), the outer surfaces of the two groups of threaded rods (217) are fixedly connected with a first bevel gear (219), the outer surface of the front end of the first bevel gear (219) is engaged with a second bevel gear (221), the inner parts of the two groups of second bevel gears (221) are fixedly connected with rotating rods (222), the rear ends of the rotating rods (222) are movably connected to the inner wall of the rear end of the first connecting block (218) through bearings, the outer surfaces of the front ends of the two groups of rotating rods (222) are fixedly connected with belt pulleys (223), a conveyor belt (224) is wound between the two groups of belt pulleys (223), the outer walls of the bottom ends of the supporting rods (212) are movably connected with supporting rods (225) through rotating shafts, the bottom ends of the two groups of supporting rods (225) are movably connected with suckers (226) through rotating shafts, and the outer wall of one side of the, the other ends of the two groups of hinged rods (227) are movably connected to the outer wall of the bottom end of the moving block (216) through rotating shafts, and through holes matched with the hinged rods (227) are formed in the bottom ends of the supporting rods (212).
2. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 1, wherein: the clamping mechanism comprises third open slots (311), the inner walls of the upper parts of the two sides of the outer conduit (111) are both provided with the third open slots (311), the inner walls of the two groups of the third open slots (311) are both fixedly connected with racks (312), and the inside of the rack (312) is engaged with a gear block (313), one side of the two sets of gear blocks (313) far away from the rack (312) is fixedly connected with a movable rod (314), the moving rods (314) penetrate through the slotted holes formed in the inner walls of the two sides of the sleeve (211) through a sliding mechanism, the outer parts of the upper and lower sides of the two groups of moving rods (314) are fixedly connected with second connecting blocks (315), and one side of the second connecting block (315) far away from the third slot (311) is fixedly connected with a first spring (316), the other ends of the four groups of first springs (316) are fixedly connected with the inner walls of the two sides of the sleeve (211), and the upper parts of the outer sides of the two groups of moving rods (314) are fixedly connected with a shift lever (317).
3. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 2, wherein: the sliding mechanism comprises second sliding grooves (318) and second sliding blocks (319), the inner walls of the upper side and the lower side of the moving rod (314) are provided with the second sliding grooves (318), the two groups of the second sliding grooves (318) are connected with the second sliding blocks (319) in a sliding mode, and the second sliding blocks (319) are fixedly connected in groove holes formed in the inner walls of the two sides of the sleeve (211).
4. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 1, wherein: the hole that fixed block (118) top inner wall was seted up is provided with sealing mechanism in, and sealing mechanism includes first sealed piece (321), the hole both sides inner wall that fixed block (118) top inner wall was seted up all fixedly connected with first sealed piece (321), and first sealed piece (321) inside all seted up fourth fluting (322).
5. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 4, wherein: and third springs (323) are fixedly connected between the inner walls of the two groups of the fourth grooves (322) at equal intervals.
6. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 4, wherein: air cushions (324) are glued between the inner parts of the two fourth grooves (322) at equal intervals, and fifth grooves (325) are formed in the air cushions (324).
7. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 1, wherein: and second sealing blocks (326) are glued to two sides of the top end of the outer conduit (111), and the inner sides of the second sealing blocks (326) are attached to the outer walls of two sides of the inner conduit (112).
8. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 1, wherein: the inner walls of the notches formed in the inner walls of the upper side and the lower side of the outer conduit (111) are glued with first sealing gaskets (327), and the inner sides of the first sealing gaskets (327) are attached to the outer wall of the inner conduit (112).
9. The multilayer balloon dilatation catheter for hepatobiliary surgery of claim 1, wherein: and the inner walls of the first grooves (113) are glued with second sealing gaskets (328), and the inner sides of the second sealing gaskets (328) are attached to the outer wall of the air outlet pipe (114).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110090692.3A CN112915361A (en) | 2021-01-22 | 2021-01-22 | Multilayer air bag dilating catheter for hepatobiliary surgery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110090692.3A CN112915361A (en) | 2021-01-22 | 2021-01-22 | Multilayer air bag dilating catheter for hepatobiliary surgery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113925566A (en) * | 2021-10-29 | 2022-01-14 | 青岛市中医医院(青岛市海慈医院、青岛市康复医学研究所) | Calculus removing device |
| CN114955185A (en) * | 2022-05-16 | 2022-08-30 | 山东安和安全技术研究院有限公司 | A three-dimensional storage device for water resource detects |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113925566A (en) * | 2021-10-29 | 2022-01-14 | 青岛市中医医院(青岛市海慈医院、青岛市康复医学研究所) | Calculus removing device |
| CN113925566B (en) * | 2021-10-29 | 2024-05-17 | 青岛市中医医院(青岛市海慈医院、青岛市康复医学研究所) | Calculus removing device |
| CN114955185A (en) * | 2022-05-16 | 2022-08-30 | 山东安和安全技术研究院有限公司 | A three-dimensional storage device for water resource detects |
| CN114955185B (en) * | 2022-05-16 | 2024-05-14 | 山东安和安全技术研究院有限公司 | A three-dimensional storage device for water resource detects |
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Application publication date: 20210608 |