CN104248464B - A kind of Mutiple Targets orientation suction trocar - Google Patents
A kind of Mutiple Targets orientation suction trocar Download PDFInfo
- Publication number
- CN104248464B CN104248464B CN201410492858.4A CN201410492858A CN104248464B CN 104248464 B CN104248464 B CN 104248464B CN 201410492858 A CN201410492858 A CN 201410492858A CN 104248464 B CN104248464 B CN 104248464B
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- side opening
- trocar
- suction
- trocar sheath
- 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.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
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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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
- A61M1/96—Suction control thereof
- A61M1/962—Suction control thereof having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction
Abstract
The open a kind of Mutiple Targets orientation suction trocar of the present invention, it is adaptable to intracerebral lesion (hematoma, abscess, cyst), the especially stereo-directional puncture of hematoma, broken suction and emptying.This pin is made up of inside and outside sleeve pipe, anterior cellular, rotates inner sleeve and aspirates, and makes surrouding brain tissue empty in synchronous reset along with hematoma, reduces bleeding risk again.
Description
Technical field
The invention belongs to medical instruments field, relate to a kind of Mutiple Targets orientation suction trocar, for the puncture suction of stereotaxis intracranial lesion (hematoma, abscess or cyst), especially intracerebral hematoma.
Background technology
Traditional stereotactic neurosurgery technology, as the target spot of orientation, orientation trocar or apparatus punctures intracranial lesion and arrives at predetermined target spot under the guiding of stereotactic apparatus, implements perforation, biopsy, empties, puts pipe etc. and operate.It is one of common application of this technology that intracerebral hematoma is inhaled.
Domestic and external conventional " BACKLOUND intracerebral hematoma suction spindle " is the trocar, and effective length is identical with adaptive stereotactic apparatus shelf radius.There are side opening, inner sleeve Archimedian screw pin in its front end；After target spot is arrived in puncture, its tail end is applied negative pressure, rotates Archimedian screw pin simultaneously, hematoma or blood clot near the side opening of front end be i.e. inhaled into, pulverize after remove to the most external.
This pin is the special equipment of stereotaxis intracerebral hematoma emptying.But its front end only has a symmetrical contralateral exposure, synchronization can only suction broken to single target spot, and the form of intracerebral hematoma is many in irregular elliposoidal.Suction point and other parts of haematoma cavity form pressure differential, and the neighbouring cerebral tissue of suction point can cause intracranial hemorrhage prior to other partial resets, the local decompression that the tractive effect produced between cerebral tissue and suction cause；In same puncture path, repeatedly aspirate by adjusting target spot, though above-mentioned risk can be reduced, but because hematoma exists atypical fluid behaviour, the form of residual hematoma is difficult to control by aspiration procedure, prior art cannot make hematoma synchronize to reduce by equal proportion, in art or recurrent bleeding is the maximum risk of this operation all the time.
Summary of the invention
It is desirable to provide a kind of Mutiple Targets orientation suction trocar, being used for replacing BACKLOUND pin, implement the broken suction of stereotaxis intracerebral hematoma, drain, making hematoma is that equal proportion synchronizes to reduce, and while effectively removing hematoma, reduces bleeding risk again.
It is an object of the invention to be achieved through the following technical solutions: a kind of Mutiple Targets orientation suction trocar, be made up of inner sleeve and trocar sheath, inner sleeve is coaxially mounted in trocar sheath；Wherein the front end of trocar sheath is blunt for circle, and anterior tube wall is loose structure, has multiple rows of suction socket equidistant, the distribution in sections；It is in and is evenly distributed on tube wall surrounding and aperture is identical with the suction socket of row；Inner sleeve front portion tube wall also has, with the corresponding position of trocar sheath suction socket, the side opening that size, shape are identical；Rotate the anterior side opening overlap of inner sleeve, inner sleeve and trocar sheath or dislocation；Time overlapping, the inner chamber of inner sleeve communicates with outside, and during dislocation, side opening is closed；And it is provided with sealing device between the tail end of trocar sheath and inner sleeve.
The anterior multiple rows of suction socket being distributed in sections of described trocar, is discharged to the middle aperture arranged again to end from head, and in being first incremented by the Changing Pattern successively decreased again, pore size is between 1.0 ~ 5.0mm.
The distribution of described inner sleeve front portion side opening, can have side opening with each sections, it is also possible to portion segment has side opening, portion segment not to have side opening.
Described inner sleeve has on the sections of side opening, and the quantity of side opening can minimum be 1, the most identical with trocar sheath.
This Mutiple Targets orientation suction trocar, with traditional BACKLOUND for than, it is not necessary to by adjust paracentesis depth to hematoma implement broken suction, side opening design for common elliposoidal hematoma, broad in the middle, small in ends, be conducive to hematoma emptying, cerebral tissue synchronous reset about, reduce bleeding risk again；Owing to trocar sheath is fixed, by changing the inner sleeve of different side opening distribution, it is not necessary to repeated puncture cerebral tissue, single target spot emptying can be carried out and Mutiple Targets synchronizes emptying, wait different hematoma emptying effects.
Accompanying drawing explanation
Fig. 1 is the structural representation of trocar, and inside and outside sleeve pipe is identical in size, the shape of identical sections upper-side hole；First sections is to interlude again to minor details section, and the size of side opening is first incremented by, then successively decreases.
Fig. 2 is the suction socket distribution schematic diagram of trocar sheath and inner sleeve, and wherein a is trocar sheath, and b is inner sleeve, and its side opening has multiple distribution form；
Fig. 3 is the operating diagram of trocar, rotates inner sleeve, and the suction socket of each sections is in gradually open, Guan Bi.
Detailed description of the invention
As it is shown in figure 1, Mutiple Targets orientation suction trocar is made up of inner sleeve 2 and trocar sheath 1, inner sleeve 2 is coaxially mounted in trocar sheath 1；Wherein the front end of trocar sheath 1 is blunt for circle, is of value to minimizing tissue injury, and inside and outside sleeve pipe is identical in size, the shape of identical sections upper-side hole；First sections is to interlude again to minor details section, and the size of side opening is first incremented by, then successively decreases.Being provided with sealing device between trocar sheath 1 tail end and inner sleeve 2, prominent inner sleeve 2 can be twisted with the fingers or catcher brace by hands, drives inner sleeve 2 to rotate；
As in figure 2 it is shown, the side opening of described trocar sheath 1 front portion is evenly distributed, pore size is between 1.0 ~ 5.0mm；The side opening of inner sleeve 2 has multiple distribution form.Can be the single hole of single sections, the porous of single sections；Can also be the single hole of multiple sections, the porous of multiple sections；
During as it is shown on figure 3, inner sleeve 2 rotates, the side opening of inner sleeve 2 and trocar sheath 1 front portion is overlapping or misplaces；Time overlapping, the inner chamber of inner sleeve 2 communicates with outside, and during dislocation, side opening is closed；If the single hole of single sections, then the wheel producing single target spot scrapes suction；The porous of single sections, then produce the fixed point emptying of single target spot；The single hole of multiple sections, then produce holoaxial to wheel scrape suction；The porous of multiple sections, then produce holoaxial to synchronization emptying.
The present invention uses process as follows: according to the length of hematoma major axis, select suitable sleeve pipe, and the suction socket making head, tail two ends less is positioned at the two ends of hematoma major axis, and the bigger suction socket of centre is positioned at the middle part of hematoma major axis.During row suction, elliposoidal hematoma can synchronize in equal proportion to reduce.Rotating inner sleeve 2 to aspirate, inner sleeve 2 axially rotates simultaneously, and the then order of the side opening on each sections tube wall is open, Guan Bi, applies negative pressure simultaneously；Select different trocars can produce different broken suction effects by sludged blood axial to hematoma length: to select different inner sleeves, it is possible to achieve the wheel pinpointing, determining face is scraped suction or synchronizes emptying.
Claims (4)
1. a Mutiple Targets orientation suction trocar, it is characterised in that being made up of inner sleeve (2) and trocar sheath (1), inner sleeve (2) is coaxially mounted in trocar sheath (1)；Wherein the front end of trocar sheath (1) is blunt for circle, and anterior tube wall is loose structure, has multiple rows of suction socket equidistant, the distribution in sections；It is in and is evenly distributed on tube wall surrounding and aperture is identical with the suction socket of row；The anterior tube wall of inner sleeve (2) also has, with the corresponding position of trocar sheath (1) suction socket, the side opening that size, shape are identical；Rotate the anterior side opening overlap of inner sleeve (2), inner sleeve (2) and trocar sheath (1) or dislocation；Time overlapping, the inner chamber of inner sleeve (2) communicates with outside, and during dislocation, side opening is closed；It is provided with sealing device between tail end and the inner sleeve (2) of trocar sheath (1).
2.
A kind of Mutiple Targets orientation suction trocar according to claim 1, it is characterized in that, described inner sleeve (2) and the anterior multiple rows of suction socket being distributed in sections of trocar sheath (1), from the aperture that head is discharged to arrange to end centre again in being first incremented by the Changing Pattern successively decreased again, pore size is between 1.0 ~ 5.0mm.
A kind of Mutiple Targets orientation suction trocar the most according to claim 1, it is characterised in that the distribution of the anterior side opening of described inner sleeve (2), each sections has side opening, or portion segment has side opening, part not to have side opening.
A kind of Mutiple Targets orientation suction trocar the most according to claim 3, it is characterised in that described inner sleeve (2) has on the sections of side opening, and the minimum number of side opening is 1, the most identical with the quantity of the side opening on trocar sheath (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492858.4A CN104248464B (en) | 2014-09-24 | 2014-09-24 | A kind of Mutiple Targets orientation suction trocar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492858.4A CN104248464B (en) | 2014-09-24 | 2014-09-24 | A kind of Mutiple Targets orientation suction trocar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104248464A CN104248464A (en) | 2014-12-31 |
| CN104248464B true CN104248464B (en) | 2016-08-24 |
Family
ID=52183948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410492858.4A Expired - Fee Related CN104248464B (en) | 2014-09-24 | 2014-09-24 | A kind of Mutiple Targets orientation suction trocar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104248464B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230172632A1 (en) * | 2020-03-19 | 2023-06-08 | Covidien Lp | Trocar for cleaning medical devices therein |
| CN116672032B (en) * | 2023-08-03 | 2024-01-12 | 清华大学 | Thrombus aspiration catheter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES208409Y (en) * | 1974-12-14 | 1976-07-16 | Henriquez De Gaztanondo | ARRANGEMENT FOR PUNCTURE, INJECTION, DRAINAGE AND PERCUTANEOUS CATHETERIZATION. |
| CN2061444U (en) * | 1989-07-04 | 1990-09-05 | 刘德玉 | Porous bulb-headed catheter puncturing needle |
| CN2056343U (en) * | 1989-10-04 | 1990-04-25 | 丁运良 | Multipurpose puncture needle |
| US5489269A (en) * | 1993-11-10 | 1996-02-06 | Cook, Incorporated | Hard tip drainage catheter |
| US6033420A (en) * | 1998-09-02 | 2000-03-07 | Embol-X, Inc. | Trocar introducer system and methods of use |
| CN2478555Y (en) * | 2001-03-21 | 2002-02-27 | 白文庆 | Multi-functional cystis puncturing needle |
| JP2006314744A (en) * | 2005-05-12 | 2006-11-24 | Ir Medical Kobo:Kk | Transparent trocar for brain puncture |
| CN202397564U (en) * | 2011-12-18 | 2012-08-29 | 孙雪梅 | Novel brain puncture needle device |
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2014
- 2014-09-24 CN CN201410492858.4A patent/CN104248464B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104248464A (en) | 2014-12-31 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20180924 |