CN114849026A - Brain tissue path sheath tube system with balloon dilatation - Google Patents
Brain tissue path sheath tube system with balloon dilatation Download PDFInfo
- Publication number
- CN114849026A CN114849026A CN202210374095.8A CN202210374095A CN114849026A CN 114849026 A CN114849026 A CN 114849026A CN 202210374095 A CN202210374095 A CN 202210374095A CN 114849026 A CN114849026 A CN 114849026A
- Authority
- CN
- China
- Prior art keywords
- balloon
- sheath
- tube
- brain tissue
- tube seat
- 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
- 210000005013 brain tissue Anatomy 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002504 physiological saline solution Substances 0.000 claims description 9
- 229920002614 Polyether block amide Polymers 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 230000037361 pathway Effects 0.000 abstract description 15
- 230000006378 damage Effects 0.000 abstract description 6
- 238000011112 process operation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 210000004556 brain Anatomy 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002861 ventricular Effects 0.000 description 2
- 208000022316 Arachnoid cyst Diseases 0.000 description 1
- 208000003174 Brain Neoplasms Diseases 0.000 description 1
- 208000003159 Cerebral Ventricle Neoplasms Diseases 0.000 description 1
- 206010053942 Cerebral haematoma Diseases 0.000 description 1
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 1
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 230000002888 effect on disease Effects 0.000 description 1
- 208000003906 hydrocephalus Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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
- A61M25/1018—Balloon inflating or inflation-control devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
-
- 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
- A61M25/0026—Multi-lumen catheters with stationary elements
-
- 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
-
- 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
- A61M25/10182—Injector syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biophysics (AREA)
- Child & Adolescent Psychology (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present disclosure relates to a balloon-dilated brain tissue pathway sheath system comprising a balloon sheath; a tube seat connected with the proximal end of the balloon sheath tube; the near end of the tube seat is provided with a tube seat inlet, and the side surface of the tube seat is provided with a tube seat side port; the inlet of the tube seat is communicated with the inner cavity of the balloon sheath tube; the passage sheath tube is formed by coiling a rectangular material and is attached to the outer side of the balloon sheath tube, and the long side of the rectangular material is parallel to the central axis of the balloon sheath tube; the tearable heat-shrinkable sleeve is sleeved outside the passage sheath, and the passage sheath is pressed and attached outside the balloon sheath; the proximal end of the tearable heat-shrinkable sleeve is provided with a tearable strip; the balloon body is sleeved on the tube body of the balloon sheath tube and arranged at the far end of the tearable heat-shrinkable sleeve; the filling cavity of the balloon body is communicated with the side opening of the tube seat. The passage sheath canal system provided by the disclosure can quickly establish a brain tissue passage, simultaneously furthest reduces the damage to the brain tissue, and has the advantages of variable-diameter design and simple process operation.
Description
Technical Field
The disclosure relates to the field of medical equipment, in particular to a brain tissue pathway sheath system with balloon dilatation.
Background
Neuroendoscopy is a tool for observation and operation in endoscopic neurosurgery. As early as 1806, Philipp Bozzini invented endoscopes and gradually became available for clinical use in multiple specialties. In 1918, Dandy observed the ventricles using a cystoscope and named the endoscope "neuro-endoscope". The neural endoscope commonly used in clinic includes a hard endoscope and a soft endoscope, and the latter develops through two stages of an optical fiber endoscope and an electronic soft endoscope. Neuroendoscopy has become one of the main development directions of modern micro-invasive neurosurgery, and has good treatment effects on diseases such as hydrocephalus, intracranial arachnoid cyst, intracerebral hematoma and cerebral hemorrhage, brain tumor, ventricular tumor and the like. The principle of neuroendoscopy is that the neuroendoscopy directly enters a ventricle through a micro-channel and then carries out surgical operation under the observation of local visual field of an endoscope, so that a channel sheath tube system which can quickly establish a brain channel and has minimum trauma to brain tissues is developed and is a key factor for realizing successful operation.
In the prior art, a commonly-used ventricular puncture needle can establish a channel for placing a ventricular drainage tube, and has the advantages of compactness and convenience, and the defect that the puncture needle can only probe and can not realize the retraction of cerebral tissues, other similar tissue retractors, such as single balloon catheter expansion, need to be expanded for multiple times in advance and then inserted with a subsequent sheath tube, and the size of the sheath tube is difficult to be accurately matched with or matched with an actual channel after the sheath tube is expanded. Although the chinese patent CN108992768A discloses a combined puncture needle and brain tissue dilator with a soft balloon, the brain pressure plate used for establishing the channel is of a constant diameter, after the distal balloon completes the dilation of the brain tissue, once the channel retracts or the balloon dilates improperly in size, the subsequent channel sheath tube cannot be well matched with the pre-dilated channel, and before the balloon is dilated in place, the brain pressure plate used for the channel is previously sleeved outside the balloon catheter, and the larger outer diameter inevitably causes unnecessary damage to the brain tissue in the process.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, the present disclosure aims to provide a brain tissue access sheath system with balloon dilatation to solve the existing technical problems.
To achieve the above object, the present disclosure provides a balloon-expandable brain tissue access sheath system, the system comprising:
the balloon sheath tube is a double-cavity balloon catheter;
the far end of the tube seat is connected with the near end of the balloon sheath tube; the near end of the tube seat is provided with a tube seat inlet, and the side surface of the tube seat is provided with a tube seat side port; the inlet of the tube seat is communicated with the inner cavity of the balloon sheath tube;
the passage sheath tube is formed by coiling a rectangular material, the passage sheath tube is attached to the outer side of the balloon sheath tube, and the long side of the rectangular material is parallel to the central axis of the balloon sheath tube;
the tearable heat-shrinkable sleeve is sleeved on the outer side of the passage sheath, and the passage sheath is pressed and attached to the outer side of the balloon sheath; the proximal end of the tearable heat-shrinkable sleeve is provided with a tearable strip;
the balloon body is sleeved on the tube body of the balloon sheath tube and is arranged at the far end of the tearable heat-shrinkable sleeve; the filling cavity of the balloon body is communicated with the side opening of the tube seat;
the side opening of the tube seat is connected with an external injector, the injector injects physiological saline into the filling cavity of the balloon body through the side opening of the tube seat so as to expand the balloon body, and the balloon body expands to expand brain tissues to form a passage.
In some aspects, the long side of the rectangular material is provided with a length scale.
In some aspects, a distal end of the access sheath is aligned with a distal end of the tearable heat shrink.
In some aspects, the length of the tearable heat shrink sleeve is 5-20 mm longer than the length of the access sheath.
In some aspects, the distal end of the balloon sheath is a rounded tip.
In some aspects, the balloon body has a length in a range of 3-8 cm; the balloon body is made of Pebax or PA.
In some aspects, the balloon sheath has a length in a range of 5-15 cm.
In some embodiments, the material of the stem is polycarbonate or polyimide.
In some embodiments, the access sheath is made of PET, PA, PI, or Pebax.
In some aspects, the inner diameter of the access sheath in a naturally crimped state is 4-20 mm; the outer diameter of the passage sheath tube in a compressed state is 3-10 mm.
The disclosed embodiment provides a brain tissue pathway sheath tube system with balloon dilatation, which comprises a balloon sheath tube, wherein the near end of the balloon sheath tube is connected with a tube seat, the near end of the tube seat is provided with a tube seat inlet, the side surface of the tube seat is provided with a tube seat side port, and the tube seat inlet is communicated with the inner cavity of the balloon sheath tube; a passage sheath tube formed by coiling a rectangular material is attached to the outer side of the balloon sheath tube; the outer side of the passage sheath tube is sleeved with a tearable heat-shrinkable sleeve for pressing the passage sheath tube on the outer side of the balloon sheath tube; the far end of the balloon sheath tube is sleeved with a balloon body, a filling cavity of the balloon body is communicated with a tube seat side opening of the tube seat, and the injector injects physiological saline into the filling cavity of the balloon body through the tube seat side opening to expand the balloon body so as to expand brain tissues to form a passage. The brain tissue pathway sheath tube system with the balloon dilatation, provided by the disclosure, can quickly establish a brain tissue pathway, and simultaneously furthest reduces the damage to the brain tissue, and the pathway is designed in a variable diameter mode, so that the process operation is simple.
Drawings
Fig. 1 is a schematic structural diagram of a balloon-expandable brain tissue access sheath system according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of two tearable strips at a proximal end of a tearable heat shrinkable sleeve provided in an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of a rectangular material for crimping into a passage sheath provided by an embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of a access sheath provided by an embodiment of the present disclosure in two different crimping modes;
fig. 5 is one of the schematic views of the operation of the access sheath system according to the embodiment of the disclosure;
fig. 6 is a second schematic diagram illustrating the operation of the access sheath system according to the embodiment of the disclosure;
fig. 7 is a third schematic diagram illustrating the operation of the access sheath system according to the embodiment of the present disclosure;
fig. 8 is a fourth schematic diagram illustrating the operation of the access sheath system according to the embodiment of the disclosure;
fig. 9 is a fifth schematic view of the operation of the access sheath system according to the embodiment of the disclosure.
Detailed Description
The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.
The disclosed embodiment provides a brain tissue pathway sheath tube system with balloon dilatation, which comprises a balloon sheath tube, wherein a tube seat is arranged at the near end of the balloon sheath tube, a tube seat inlet is arranged at the near end of the tube seat, and a tube seat side port is arranged on the side surface of the tube seat; the inlet of the tube seat is communicated with the inner cavity of the balloon sheath tube; a path sheath tube which is formed by curling a rectangular material is attached to the outer side of the balloon sheath tube, a tearable heat-shrinkable sleeve is sleeved on the outer side of the path sheath tube, and a tearable strip is arranged at the near end of the tearable heat-shrinkable sleeve; the far end of the balloon sheath tube is sleeved with a balloon body, the balloon body is arranged at the far end of the tearable heat-shrinkable sleeve, and a filling cavity of the balloon body is communicated with the tube seat side port of the tube seat; the injector injects physiological saline into the filling cavity of the balloon body through the side opening of the tube seat to expand the balloon body, so as to expand brain tissue to form a passage. The brain tissue pathway sheath tube system with the balloon dilatation, provided by the disclosure, can quickly establish a brain tissue pathway, and simultaneously furthest reduces the damage to the brain tissue, and the pathway is designed to be variable in diameter, so that the operation process is simple.
The present disclosure is described in detail below with reference to specific embodiments, but it should be understood that the following embodiments are not intended to limit the present disclosure, and those skilled in the art can conceive of other similar schemes based on the concept of the present disclosure by combining and arranging specific features in the embodiments.
As discussed in this disclosure, the terms "distal" or "proximal" are used hereinafter in relation to a description of a position or orientation relative to a hand-held end of a treating physician or medical interventionalist. "distal" or "distal side" is a location that is distal to the direction of the physician or interventionalist's hand-held end, and is not limited to a particular end point, but may also be a location that is proximal to an end point. "proximal" or "proximal side" is a location near the direction of the physician or interventionalist hand-held end.
Fig. 1 is a schematic structural view of a brain tissue access sheath system with a balloon expansion according to an embodiment of the present disclosure, and as shown in fig. 1, the brain tissue access sheath system with the balloon expansion includes: the balloon sheath tube comprises a balloon sheath tube 1, a tube seat 2, a channel sheath tube 3, a tearable heat-shrinkable sleeve 4 and a balloon body 5.
Sacculus sheath pipe 1 is two-chamber sacculus pipe, and the distal end of sacculus sheath pipe 1 sets up to slick and sly most advanced, can reduce the injury to the brain tissue, is provided with sacculus utricule 5 on the body of 1 distal end of sacculus sheath pipe.
The near end of the balloon sheath tube 1 is provided with a tube seat 2, and the far end of the tube seat 2 is connected with the near end of the balloon sheath tube 1. The near end of the tube seat 2 is provided with a tube seat inlet 21, the tube seat inlet 21 is communicated with the inner cavity of the balloon sheath tube 1 and is used for placing a puncture needle, in the actual use process, the puncture needle enters the inner cavity of the balloon sheath tube 1 through the tube seat inlet 21 to reach the target position of brain tissue, and the balloon body 5 can more smoothly complete the expansion of the brain tissue under the guidance of the puncture needle. The side surface of the tube seat 2 is provided with a tube seat side port 22, and the tube seat side port 22 is communicated with the balloon body 5 and used for injecting physiological saline into the balloon body 5 so as to fill the balloon body 5 and expand brain tissue.
The passage sheath 3 is of a curled open design and is formed by curling a rectangular material. Fig. 3 is a schematic structural view of a rectangular material rolled into a passage sheath according to an embodiment of the present disclosure, and as shown in fig. 3, the passage sheath 3 is rectangular in a fully unfolded state, and a length scale 31 is provided on a long side of the rectangle for accurately and conveniently positioning the passage sheath 3. The passage sheath 3 is a curled open cylinder in a natural state, the inner diameter range is 4-20 mm, and the outer diameter of the passage sheath 3 is 3-10 mm in a compressed state. The material of the passage sheath 3 is a polymer material such as PET (Polyethylene Glycol Terephthalate), PA (Polyamide), PI (Polyimide), or Pebax (polyether block Polyamide). Fig. 4 is a schematic cross-sectional view of the passage sheath according to two different curling methods of the passage sheath provided in the embodiment of the present disclosure, and as shown in fig. 4, the natural curling method of the passage sheath 3 may be a counterclockwise curling method or a clockwise curling method.
The passage sheath tube 3 is attached to the outer side of the balloon sheath tube 1, is arranged at the near end of the balloon body 5, and is used for being curled into a long side of a rectangular material of the passage sheath tube 3 to be parallel to the central axis of the balloon sheath tube 1.
Since the passage sheath 3 is an open cylinder, in order to facilitate transportation, a tearable heat-shrinkable sleeve 4 is sleeved on the outer side of the passage sheath 3, and the tearable heat-shrinkable sleeve 4 is made of polyolefin or FEP (Fluorinated Ethylene Propylene copolymer). The far end that can tear heat-shrinkable sleeve 4 aligns with the far end of route sheath 3, can tear heat-shrinkable sleeve 4 and compress route sheath 3 in the outside of sacculus sheath 1, prevents that route sheath 3 from expanding when carrying. The length of the tearable heat-shrinkable sleeve 4 is 5-20 mm longer than that of the access sheath 3. The tearable heat shrink sleeve 4 is of tearable design, which is provided with a tearable strip 41 at its proximal end. Fig. 2 is a schematic structural diagram of two tearable strips at the proximal end of the tearable heat-shrinkable sleeve provided by the embodiment of the present disclosure, and as shown in fig. 2, the tearable strip 41 may be provided with 3 or 4 petals.
The balloon body 5 is arranged on the body of the balloon sheath tube 1 at the far end of the tearable heat-shrinkable sleeve 4.
Fig. 5-9 are schematic views illustrating the operation of the access sheath system according to the embodiment of the present disclosure, and as shown in fig. 5-9, an inflation cavity 51 is provided inside the balloon body 5, and the inflation cavity 51 is communicated with the hub side port 22 of the hub 2.
The specific working process of the brain tissue pathway sheath system with balloon dilatation provided by the embodiment of the disclosure is as follows:
as shown in fig. 5, the stem side port 22 of the stem 2 is connected to an external syringe, and the syringe injects physiological saline into the inflation lumen 51 of the balloon body 5 through the stem side port 22 to expand the balloon body 5 and expand the brain tissue 6.
As shown in fig. 6 and 7, the outermost tearable heat-shrinkable sleeve 4 is pulled out, the tearable strip 41 disposed along the proximal end of the tearable heat-shrinkable sleeve 4 is torn axially, the tearable heat-shrinkable sleeve 4 is peeled off, so that the access sheath 3 is self-expanded under the action of the self-curling potential energy, at this time, the physiological saline in the filling cavity 51 of the balloon body 5 is sucked by the syringe, so that the balloon body 5 is retracted until the outer diameter of the balloon body 5 is smaller than the inner diameter of the access sheath 3, then the access sheath 3 is pushed to the distal end of the balloon sheath 1, and the distal end of the access sheath 3 is aligned with the distal end of the balloon body 5 by observing the length scale 31 on the access sheath 3.
As shown in fig. 8, the physiological saline is injected again into the filling lumen 51 of the balloon body 5 by the syringe, and the balloon body 5 is expanded to completely open the access sheath 3, thereby establishing the brain tissue access.
As shown in fig. 9, the saline in the filling cavity 51 of the balloon body 5 is sucked out again by the syringe, so that the balloon body 5 retracts, and the balloon sheath 1 and the balloon body 5 are withdrawn together, the access sheath 3 finally maintains a stable inner cavity under the action of the strength of the material thereof, and the whole operation access is established.
The disclosed embodiment provides a brain tissue pathway sheath tube system with balloon dilatation, which comprises a balloon sheath tube, wherein the near end of the balloon sheath tube is connected with a tube seat, the near end of the tube seat is provided with a tube seat inlet, the side surface of the tube seat is provided with a tube seat side port, and the tube seat inlet is communicated with the inner cavity of the balloon sheath tube; a passage sheath tube formed by coiling a rectangular material is attached to the outer side of the balloon sheath tube; the outer side of the passage sheath tube is sleeved with a tearable heat-shrinkable sleeve for pressing the passage sheath tube on the outer side of the balloon sheath tube; the far end of the balloon sheath tube is sleeved with a balloon body, a filling cavity of the balloon body is communicated with a tube seat side opening of the tube seat, and the injector injects physiological saline into the filling cavity of the balloon body through the tube seat side opening to expand the balloon body so as to expand brain tissues to form a passage. The brain tissue pathway sheath tube system with the balloon dilatation, provided by the disclosure, can quickly establish a brain tissue pathway, and simultaneously furthest reduces the damage to the brain tissue, and the pathway is designed in a variable diameter mode, so that the process operation is simple.
The above-mentioned embodiments, objects, technical solutions and advantages of the present disclosure are described in further detail, it should be understood that the above-mentioned embodiments are merely illustrative of the present disclosure and are not intended to limit the scope of the present disclosure, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A balloon-expandable brain tissue access sheath system, the system comprising:
the balloon sheath is a double-cavity balloon catheter;
the far end of the tube seat is connected with the near end of the balloon sheath tube; the near end of the tube seat is provided with a tube seat inlet, and the side surface of the tube seat is provided with a tube seat side port; the inlet of the tube seat is communicated with the inner cavity of the balloon sheath tube;
the passage sheath tube is formed by coiling a rectangular material, the passage sheath tube is attached to the outer side of the balloon sheath tube, and the long side of the rectangular material is parallel to the central axis of the balloon sheath tube;
the tearable heat-shrinkable sleeve is sleeved on the outer side of the passage sheath, and the passage sheath is pressed and attached to the outer side of the balloon sheath; the proximal end of the tearable heat-shrinkable sleeve is provided with a tearable strip;
the balloon body is sleeved on the tube body of the balloon sheath tube and is arranged at the far end of the tearable heat-shrinkable sleeve; the filling cavity of the balloon body is communicated with the side opening of the tube seat;
the side opening of the tube seat is connected with an external injector, the injector injects physiological saline into the filling cavity of the balloon body through the side opening of the tube seat so as to expand the balloon body, and the balloon body expands to expand brain tissues to form a passage.
2. The balloon expandable brain tissue access sheath system of claim 1, wherein the long side of the rectangular material is provided with a length scale.
3. The balloon-expandable brain tissue access sheath system of claim 1, wherein the distal end of the access sheath is aligned with the distal end of the tearable heat shrink.
4. The balloon-expandable brain tissue access sheath system of claim 1, wherein the length of the tearable heat shrink sleeve is 5-20 mm longer than the length of the access sheath.
5. The balloon-expandable brain tissue access sheath system of claim 1, wherein the distal end of the balloon sheath is rounded-tipped.
6. The balloon-expandable brain tissue access sheath system according to claim 1, wherein the balloon body has a length in the range of 3-8 cm; the balloon body is made of Pebax or PA.
7. The balloon-expandable brain tissue access sheath according to claim 1, wherein the balloon sheath has a length in the range of 5-15 cm.
8. The balloon-expandable brain tissue access sheath system of claim 1, wherein the tube holder is made of polycarbonate or polyimide.
9. The balloon expandable brain tissue access sheath system of claim 1, wherein the access sheath is made of PET, PA, PI or Pebax.
10. The balloon-expandable brain tissue access sheath system of claim 1, wherein the access sheath has an inner diameter of 4-20 mm in a naturally crimped state; the outer diameter of the passage sheath tube in a compressed state is 3-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210374095.8A CN114849026A (en) | 2022-04-11 | 2022-04-11 | Brain tissue path sheath tube system with balloon dilatation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210374095.8A CN114849026A (en) | 2022-04-11 | 2022-04-11 | Brain tissue path sheath tube system with balloon dilatation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114849026A true CN114849026A (en) | 2022-08-05 |
Family
ID=82628848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210374095.8A Pending CN114849026A (en) | 2022-04-11 | 2022-04-11 | Brain tissue path sheath tube system with balloon dilatation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114849026A (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5639274A (en) * | 1995-06-02 | 1997-06-17 | Fischell; Robert E. | Integrated catheter system for balloon angioplasty and stent delivery |
| US5868707A (en) * | 1996-08-15 | 1999-02-09 | Advanced Cardiovascular Systems, Inc. | Protective sheath for catheter balloons |
| US6254628B1 (en) * | 1996-12-09 | 2001-07-03 | Micro Therapeutics, Inc. | Intracranial stent |
| AU2004281122A1 (en) * | 2003-10-15 | 2005-04-28 | Kabushikikaisha Igaki Iryo Sekkei | Vessel stent feeder |
| US20050124937A1 (en) * | 2003-12-05 | 2005-06-09 | Kick George F. | Expandable percutaneous sheath |
| CA2599370A1 (en) * | 2005-03-02 | 2006-09-08 | C.R. Bard, Inc. | Expandable access sheath |
| JP2013132432A (en) * | 2011-12-27 | 2013-07-08 | Sumitomo Bakelite Co Ltd | Medical device and method of manufacturing the same |
| CN203458500U (en) * | 2013-09-10 | 2014-03-05 | 北京泰杰伟业科技有限公司 | Self-expanding endovascular stent system with balloon dilatation function |
| CN105343995A (en) * | 2015-11-16 | 2016-02-24 | 深圳市擎源医疗器械有限公司 | Brain retracting apparatus |
| US20160158489A1 (en) * | 2013-07-18 | 2016-06-09 | Zhongjun Wu | Self-expanding cannula |
| WO2016196362A1 (en) * | 2015-05-29 | 2016-12-08 | Branger Annette | Sheath catheter with tearable sidewall strips for releasing self-expanding stents |
| US20170135725A1 (en) * | 2012-08-24 | 2017-05-18 | St. Jude Medical Puerto Rico Llc | Collapsible sheath and tapered dilator for tissue puncture access |
| CN108926377A (en) * | 2018-09-29 | 2018-12-04 | 高月海 | A kind of tearable sheath and its working method for minimally invasive removing cerebral hemorrhage |
| CN108992768A (en) * | 2018-08-29 | 2018-12-14 | 郑州大学第附属医院 | A kind of brain surgery expander and the brain Path Setup method using the expander |
| CN109045444A (en) * | 2018-09-07 | 2018-12-21 | 湖南埃普特医疗器械有限公司 | It is a kind of from swollen sheath group |
| CN209316785U (en) * | 2018-08-20 | 2019-08-30 | 卢平方 | A kind of integral type single saccule dilating catheter |
| WO2020123690A1 (en) * | 2018-12-11 | 2020-06-18 | The Regents Of The University Of California | Systems and methods for accessing a site within the body |
| CN112790836A (en) * | 2019-11-14 | 2021-05-14 | 深圳市擎源医疗器械有限公司 | A balloon channel device and method for constructing a surgical channel |
| WO2022016059A1 (en) * | 2020-07-17 | 2022-01-20 | Edwards Lifesciences Corporation | Expandable introducer for dilating the distal tip of an introducer sheath |
-
2022
- 2022-04-11 CN CN202210374095.8A patent/CN114849026A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5639274A (en) * | 1995-06-02 | 1997-06-17 | Fischell; Robert E. | Integrated catheter system for balloon angioplasty and stent delivery |
| US5868707A (en) * | 1996-08-15 | 1999-02-09 | Advanced Cardiovascular Systems, Inc. | Protective sheath for catheter balloons |
| US6254628B1 (en) * | 1996-12-09 | 2001-07-03 | Micro Therapeutics, Inc. | Intracranial stent |
| US20020004676A1 (en) * | 1996-12-09 | 2002-01-10 | George Wallace | Intracranial stent and method of use |
| AU2004281122A1 (en) * | 2003-10-15 | 2005-04-28 | Kabushikikaisha Igaki Iryo Sekkei | Vessel stent feeder |
| US20050124937A1 (en) * | 2003-12-05 | 2005-06-09 | Kick George F. | Expandable percutaneous sheath |
| CA2599370A1 (en) * | 2005-03-02 | 2006-09-08 | C.R. Bard, Inc. | Expandable access sheath |
| JP2013132432A (en) * | 2011-12-27 | 2013-07-08 | Sumitomo Bakelite Co Ltd | Medical device and method of manufacturing the same |
| US20170135725A1 (en) * | 2012-08-24 | 2017-05-18 | St. Jude Medical Puerto Rico Llc | Collapsible sheath and tapered dilator for tissue puncture access |
| US20160158489A1 (en) * | 2013-07-18 | 2016-06-09 | Zhongjun Wu | Self-expanding cannula |
| CN203458500U (en) * | 2013-09-10 | 2014-03-05 | 北京泰杰伟业科技有限公司 | Self-expanding endovascular stent system with balloon dilatation function |
| WO2016196362A1 (en) * | 2015-05-29 | 2016-12-08 | Branger Annette | Sheath catheter with tearable sidewall strips for releasing self-expanding stents |
| CN105343995A (en) * | 2015-11-16 | 2016-02-24 | 深圳市擎源医疗器械有限公司 | Brain retracting apparatus |
| CN209316785U (en) * | 2018-08-20 | 2019-08-30 | 卢平方 | A kind of integral type single saccule dilating catheter |
| CN108992768A (en) * | 2018-08-29 | 2018-12-14 | 郑州大学第附属医院 | A kind of brain surgery expander and the brain Path Setup method using the expander |
| CN109045444A (en) * | 2018-09-07 | 2018-12-21 | 湖南埃普特医疗器械有限公司 | It is a kind of from swollen sheath group |
| CN108926377A (en) * | 2018-09-29 | 2018-12-04 | 高月海 | A kind of tearable sheath and its working method for minimally invasive removing cerebral hemorrhage |
| WO2020123690A1 (en) * | 2018-12-11 | 2020-06-18 | The Regents Of The University Of California | Systems and methods for accessing a site within the body |
| US20220008707A1 (en) * | 2018-12-11 | 2022-01-13 | The Regents Of The University Of California | Systems and methods for accessing a site within the body |
| CN112790836A (en) * | 2019-11-14 | 2021-05-14 | 深圳市擎源医疗器械有限公司 | A balloon channel device and method for constructing a surgical channel |
| WO2022016059A1 (en) * | 2020-07-17 | 2022-01-20 | Edwards Lifesciences Corporation | Expandable introducer for dilating the distal tip of an introducer sheath |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10124153B2 (en) | Balloon catheter and methods of use thereof | |
| US7789893B2 (en) | Method and apparatus for promoting hemostasis of a blood vessel puncture | |
| EP0843569B1 (en) | Apparatus for catheterization access | |
| US20050197627A1 (en) | Method and system for deploying protective sleeve in intraluminal catherization and dilation | |
| JP2636081B2 (en) | Enlargement device for forming through holes | |
| US5626601A (en) | Vascular sealing apparatus and method | |
| US3742958A (en) | Suprapubic catheter inserter | |
| US20080077054A1 (en) | Cervical dilator and methods of use | |
| EP0249456A2 (en) | Variable diameter catheter | |
| US20150209509A1 (en) | Methods and devices for inserting a needle | |
| CN201595907U (en) | Puncture needle with sheath capable of being torn | |
| US20120149983A1 (en) | Endoscopic cannula and methods of using the same | |
| WO2023006074A1 (en) | Puncturing instrument | |
| WO2023006071A1 (en) | Interventional catheter instrument | |
| CN110755150A (en) | Isolation instrument and medical equipment | |
| US20130090654A1 (en) | Combination cystotome and access needle device and method | |
| CN109498968B (en) | Guide wire anchoring sacculus assembly | |
| GB2487527A (en) | Needle and curved catheter | |
| EP0127261A1 (en) | Method for providing percutaneous communication with the renal or ureteral cavities | |
| CN114302756B (en) | Apparatus for performing interventional endoscopic ultrasonic procedures | |
| CN217285898U (en) | Brain tissue access device with balloon dilatation | |
| US9089663B2 (en) | Percutaneous access device | |
| CN113208708A (en) | Percutaneous intervention kit and use method | |
| US20200330082A1 (en) | Endoscopic Cannula for Fallopian Tube Access | |
| CN114849026A (en) | Brain tissue path sheath tube system with balloon dilatation |
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 | ||
| CB02 | Change of applicant information |
Address after: 101204 building 4, yard 21, Panlong West Road, Mafang Town, Pinggu District, Beijing Applicant after: Beijing Taijieweiye Technology Co.,Ltd. Address before: 101204 building 4, yard 21, Panlong West Road, Mafang Town, Pinggu District, Beijing Applicant before: BEIJING TAIJIE WEIYE TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information |