CN116602738A - Adjustable thrombus taking device - Google Patents
Adjustable thrombus taking device Download PDFInfo
- Publication number
- CN116602738A CN116602738A CN202310049141.1A CN202310049141A CN116602738A CN 116602738 A CN116602738 A CN 116602738A CN 202310049141 A CN202310049141 A CN 202310049141A CN 116602738 A CN116602738 A CN 116602738A
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- CN
- China
- Prior art keywords
- adjustable
- sliding block
- inner tube
- handle
- thrombus
- 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
- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 52
- 238000010147 laser engraving Methods 0.000 claims description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 2
- 238000013151 thrombectomy Methods 0.000 claims 10
- 210000004204 blood vessel Anatomy 0.000 description 10
- 208000005189 Embolism Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000019553 vascular disease Diseases 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005259 peripheral blood Anatomy 0.000 description 1
- 239000011886 peripheral blood Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000002537 thrombolytic effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22001—Angioplasty, e.g. PCTA
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides an adjustable thrombus taking device capable of adjusting the size (the expansion diameter of a thrombus taking basket) according to the size of an affected part, which comprises a conical head, the thrombus taking basket and an inner tube, wherein the thrombus taking basket is of a flexible expandable reticular structure and surrounds the front end of the inner tube, one ends of the conical head and the thrombus taking basket are fixed at the front end of the inner tube, the tail end of the inner tube extends backwards and penetrates through the connecting tube, and the inner tube and the connecting tube can slide relatively; the other end of the thrombus taking basket is fixedly connected with the connecting pipe, and the front end of the inner pipe is driven to drive the conical head fixed with the inner pipe and the front end of the thrombus taking basket to move and drive the thrombus taking basket to be in an expanded or contracted state by pulling the inner pipe.
Description
Technical Field
The invention relates to the technical field of medical appliances, and is mainly used for thrombus diseases of peripheral blood vessels, in particular to an adjustable thrombus taking device.
Background
Vascular disease has become the first leading fatal disease in China, and vascular embolism has become a major factor in vascular disease. Especially ischemic cerebral apoplexy, pulmonary embolism and venous embolism of lower limb, the total annual new incidence rate of patients exceeds 500 ten thousand people.
Currently, medical interventional thrombolysis has become a mainstream recommended effective way of vascular embolism therapy. The interventional thrombus taking has the advantages of small wound, short postoperative recovery time, few complications after treatment, good operation effect and the like, and can be accepted by patients. At present, a doctor usually uses a thrombus removing device in the mechanical thrombus removing process, and the basket is conveyed to a patient through the sheath tube to release the interventional thrombus removing device, so that the mechanical thrombus removing device has the advantages of small trauma, short postoperative recovery time, few complications after treatment, good operation effect and the like, and can be accepted by patients. In the current catheter thrombus taking process, a doctor usually firstly uses a guide wire to pass through a blood vessel, then gradually enters the blood vessel along the guide wire by using an expansion system, a length operator of a push tube in the expansion system entering the blood vessel can control through the operation of a handle position, and the handle part is provided with a limiting device which can limit the length operator. The control operation of the traditional expansion system is complex, the efficiency is low, and the effective limit of the catheter is difficult.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to the actual needs, and provide an adjustable thrombus taking device which can be adjusted according to the size of a diseased part (the expansion diameter of a thrombus taking basket).
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the adjustable thrombus taking device comprises a conical head, a thrombus taking basket and an inner tube, wherein the thrombus taking basket is of a flexible and expandable reticular structure and surrounds the front end of the inner tube, one ends of the conical head and the thrombus taking basket are fixed at the front end of the inner tube, the tail end of the inner tube extends backwards and penetrates through the connecting tube, and the inner tube and the connecting tube can slide relatively; the other end of the thrombus taking basket is fixedly connected with the connecting pipe, and the front end of the inner pipe is driven to drive the conical head fixed with the inner pipe and the front end of the thrombus taking basket to move and drive the thrombus taking basket to be in an expanded or contracted state by pulling the inner pipe.
The device also comprises a conveying pipe, wherein the conveying pipe is sleeved on the thrombus removing basket and can slide on the thrombus removing basket.
The thrombus taking basket is formed by weaving memory alloy or laser engraving.
The handle is further provided with a sliding block, and the inner tube is connected to the sliding block and drives the inner tube to move through the sliding block.
The handle is provided with a moving mechanism for driving the sliding block to move, the moving mechanism comprises a button and a sliding groove arranged in the handle, the sliding block is slidably arranged in the sliding groove, the handle is provided with a rectangular sliding opening, and the button is slidably arranged in the rectangular sliding opening and is connected with the sliding block.
The sliding chute is internally provided with a spring, the tail end of the spring is fixedly connected with the end part of the sliding chute, and the front end of the spring is connected with the sliding block and applies elastic force to the sliding block.
The side of the sliding block is provided with a convex column extending towards the direction of the rectangular sliding port, the button is provided with a guide tube, and the guide tube is inserted on the convex column in a sliding way.
The resistance spring is sleeved on the convex column and applies elasticity to the button, the end part of the guide pipe positioned in the handle is connected with a limiting body, the limiting body is triangular or conical, a plurality of gaps are formed in the handles on two sides of the rectangular sliding opening at equal intervals, and when the resistance spring applies elasticity to the button, the end part of the limiting body enters the gaps to limit the sliding block.
And scale marks are arranged on the side part of the rectangular sliding opening.
The buttons are two and symmetrically arranged on two sides of the handle.
The invention has the beneficial effects that:
the invention provides a device which can be operated and controlled by the hand of an operator, can be operated in a reciprocating manner, can adjust the size of a thrombus taking basket according to the size of an affected part of a blood vessel, and can be introduced into the blood vessel to dredge the blood vessel, thereby relieving the blockage of the blood vessel and improving the blood circulation system of a human body.
Drawings
FIG. 1 is a schematic side view of the present design;
FIG. 2 is a schematic side view of the present design with the delivery tube removed;
FIG. 3 is a schematic view of the handle structure in the present design;
FIG. 4 is a schematic view of the axial cross-section of the handle in the present design;
fig. 5 is a schematic cross-sectional view of the handle in the present design.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
example 1: an adjustable thrombus removal device, see fig. 1-5;
the device comprises a conical head 10, a thrombus taking basket 11 and an inner tube 8, wherein the thrombus taking basket 11 is of a flexible and expandable reticular structure and surrounds the front end of the inner tube 8, and is formed by braiding or laser engraving of memory alloy, wherein an inner hole of the conical head 10 is bonded with one end of the thrombus taking basket 11 and the inner tube 8 together, the conical head at the front end can reduce friction resistance when the device is introduced, the thrombus taking basket 11 is self-expanding, one end of the thrombus taking basket 11 is bonded with the inner tube 8, the other end of the thrombus taking basket is connected with a connecting tube 7, the tail end of the inner tube 8 extends backwards and penetrates through the connecting tube 7, and the inner tube 8 and the connecting tube 7 can slide relatively; the front end of the inner tube 8 is driven to move by pulling the inner tube 8 to drive the conical head 10 fixed with the inner tube 8 and the front end of the thrombus taking basket 11, and the thrombus taking basket 11 is driven to be in an expanded or contracted state and is expanded and deformed.
The device also comprises a conveying pipe 9, wherein the conveying pipe 9 is sleeved on the thrombus removing basket 11 and can slide on the thrombus removing basket 11.
Still include handle 1, connecting pipe 7 fixed connection is in on the handle 1, just the tail end of inner tube 8 runs through inside extending to handle 1 behind the connecting pipe 7, still be equipped with slider 5 on the handle 1, inner tube 8 is longer than the total length of bolt taking basket 11 and connecting pipe 7, passes both and fixes together with handle inner slide 5, inner tube 8 is connected on slider 5 and passes through slider 5 drives inner tube 8 and removes, its slider 5 front end has the aperture, can make inner tube 8 insert reuse glue bonding, for the uneven bending up that produces of protection inner tube 8 atress, can make the slider 5 front end.
Meanwhile, a moving mechanism for driving the sliding block 5 to move is arranged on the handle 1, the moving mechanism comprises a button 6 and a sliding groove 13 arranged in the handle, the sliding block 5 is slidably arranged in the sliding groove 13, a rectangular sliding opening 3 is formed in the handle 1, the button 6 is slidably arranged in the rectangular sliding opening 3 and is connected with the sliding block 5, a spring 14 is further arranged in the sliding groove 13, the tail end of the spring 14 is fixedly connected with the end part of the sliding groove 13, and the front end of the spring 14 is connected with the sliding block 5 and applies elastic force to the sliding block 5; the side of the sliding block 5 is provided with a convex column 18 extending towards the direction of the rectangular sliding opening 13, the button 6 is provided with a guide tube 19, and the guide tube 19 is inserted on the convex column 18 in a sliding way.
Meanwhile, a resistance spring 16 is sleeved on the convex column 18 and applies elastic force to the button 6, a limiting body 17 is connected to the end part of a guide tube 19 positioned in the handle 1, the limiting body 17 is triangular or conical, a plurality of notches 4 are arranged on the handles on the two sides of the rectangular sliding opening 13 at equal intervals, and when the resistance spring 16 applies elastic force to the button 6, the end part of the limiting body 17 enters the notches 4 to limit the sliding block 5; as shown in fig. 5, the buttons 6 are two and symmetrically arranged on both sides of the handle 1.
In the design, the handle shell is used for holding by a doctor, the handle shell is in a straight handle shape, and the upper end of the handle shell is semicircular, so that the handle shell is convenient to grasp; the bottom is flat bottom, convenient to place, the front end of the rectangular sliding port is an initial position, the other 4 are common size gears, and the final section of the rectangular sliding port is an expansion standby position; the side part of the rectangular sliding port is provided with scale marks, and each scale corresponds to one gear, so that the operation is convenient to observe and use; the button is pressed at the same time at the two sides of the front end of the handle, and the sliding block and the inner tube are moved; the handle shell can be made of high polymer ABS, PC and other materials, and has the advantages of light weight and convenience in sterilization.
Before operation treatment, the thrombus taking device of the design establishes an instrument intervention channel edge on a femoral artery (vein) vessel through a puncture needle, a guide wire, a catheter and a small puncture sheath; the method comprises the steps of introducing a catheter to a blood vessel blocking position through a blood vessel intracavity interventional channel technology, and then carrying out selective radiography to determine the blood vessel position of thrombus. The replacement angiography catheter is a guide wire (the guide wire is withdrawn from the catheter after being introduced); the device is then guided through a guide wire to the vascular site where the thrombus is located to reach the affected part.
After that, the whole bolt-taking basket is pushed out from the conveying pipe (the conveying pipe is pulled backwards to enable the whole bolt-taking basket to move out of the conveying pipe), the bolt-taking basket passes through the end position of the conveying pipe, buttons on two sides of the handle are pressed after image observation, when the buttons are pressed, the resistance springs are compressed, the guide pipe moves towards the direction of the sliding block and drives the limiting body to move out of the notch, then the buttons on two sides are pushed and the sliding block is driven to move, the inner pipe can be driven to move when the sliding block moves, the bolt-taking basket is driven to expand when the inner pipe is pulled backwards, the size released by the bolt-taking basket is regulated in this way, the position of the button entering the notch is regulated to limit the inner pipe, at the moment, the size of the bolt-taking basket can be limited, and the bolt-taking basket in the device can be pulled out of the body together by pulling the handle.
The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.
Claims (10)
1. An adjustable thrombus taking device is characterized in that: the plug taking basket is of a flexible and expandable reticular structure and surrounds the front end of the inner tube, one ends of the conical head and the plug taking basket are fixed at the front end of the inner tube, the tail end of the inner tube extends backwards and penetrates through the connecting tube, and the inner tube and the connecting tube can slide relatively; the other end of the thrombus taking basket is fixedly connected with the connecting pipe, and the front end of the inner pipe is driven to drive the conical head fixed with the inner pipe and the front end of the thrombus taking basket to move and drive the thrombus taking basket to be in an expanded or contracted state by pulling the inner pipe.
2. The adjustable thrombectomy device of claim 1, wherein: the device also comprises a conveying pipe, wherein the conveying pipe is sleeved on the thrombus removing basket and can slide on the thrombus removing basket.
3. The adjustable thrombectomy device of claim 1, wherein: the thrombus taking basket is formed by weaving memory alloy or laser engraving.
4. The adjustable thrombectomy device of claim 1, wherein: the handle is further provided with a sliding block, and the inner tube is connected to the sliding block and drives the inner tube to move through the sliding block.
5. The adjustable thrombectomy device of claim 4, wherein: the adjustable thrombectomy device of claim 1, wherein: the handle is provided with a moving mechanism for driving the sliding block to move, the moving mechanism comprises a button and a sliding groove arranged in the handle, the sliding block is slidably arranged in the sliding groove, the handle is provided with a rectangular sliding opening, and the button is slidably arranged in the rectangular sliding opening and is connected with the sliding block.
6. The adjustable thrombectomy device of claim 5, wherein: the sliding chute is internally provided with a spring, the tail end of the spring is fixedly connected with the end part of the sliding chute, and the front end of the spring is connected with the sliding block and applies elastic force to the sliding block.
7. The adjustable thrombectomy device of claim 6, wherein: the side of the sliding block is provided with a convex column extending towards the direction of the rectangular sliding port, the button is provided with a guide tube, and the guide tube is inserted on the convex column in a sliding way.
8. The adjustable thrombectomy device of claim 7, wherein: the resistance spring is sleeved on the convex column and applies elasticity to the button, the end part of the guide pipe positioned in the handle is connected with a limiting body, the limiting body is triangular or conical, a plurality of gaps are formed in the handles on two sides of the rectangular sliding opening at equal intervals, and when the resistance spring applies elasticity to the button, the end part of the limiting body enters the gaps to limit the sliding block.
9. The adjustable thrombectomy device of claim 4, wherein: and scale marks are arranged on the side part of the rectangular sliding opening.
10. The adjustable thrombectomy device of claim 4, wherein: the buttons are two and symmetrically arranged on two sides of the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310049141.1A CN116602738A (en) | 2023-02-01 | 2023-02-01 | Adjustable thrombus taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310049141.1A CN116602738A (en) | 2023-02-01 | 2023-02-01 | Adjustable thrombus taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116602738A true CN116602738A (en) | 2023-08-18 |
Family
ID=87684158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310049141.1A Pending CN116602738A (en) | 2023-02-01 | 2023-02-01 | Adjustable thrombus taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116602738A (en) |
-
2023
- 2023-02-01 CN CN202310049141.1A patent/CN116602738A/en active Pending
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