CN104248464A - Multiple-target-point stereotaxis aspiration trocar - Google Patents
Multiple-target-point stereotaxis aspiration trocar Download PDFInfo
- Publication number
- CN104248464A CN104248464A CN201410492858.4A CN201410492858A CN104248464A CN 104248464 A CN104248464 A CN 104248464A CN 201410492858 A CN201410492858 A CN 201410492858A CN 104248464 A CN104248464 A CN 104248464A
- 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.)
- Granted
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Classifications
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- 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
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- 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 invention discloses a multiple-target-point stereotaxis aspiration trocar which is applicable to focuses (hematomas, abscesses and cysts) in brains and particularly applicable to stereotaxis puncture, aspiration and drain of the hematomas. The trocar is composed of an inner sleeve and an outer sleeve. The front portion of the trocar is porous, the inner sleeve is rotated to aspirate, surrounding brain tissues restore synchronously along with drain of the hematomas, and rehaemorrhagia risks are reduced.
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, using the target spot of intracranial lesion as orientation, directed trocar or apparatus under the guiding of stereotactic apparatus, puncture arrive at predetermined target spot, implement perforation, biopsy, emptying, put the operations such as pipe.It is one of common application of this technology that intracerebral hematoma is inhaled.
" BACKLOUND intracerebral hematoma suction spindle " that internal and overseas is conventional is the trocar, and effective length is identical with adaptive stereotactic apparatus shelf radius.There is side opening its front end, inner sleeve Archimedian screw pin; After target spot is arrived in puncture, negative pressure applied to its tail end, rotate Archimedian screw pin simultaneously, namely the hematoma near the side opening of front end or blood clot are inhaled into, pulverize rear removing to external.
This pin is the emptying special equipment of stereotaxis intracerebral hematoma.But only there is a symmetrical contralateral exposure its front end, synchronization can only to the broken suction of single target spot, and the form of intracerebral hematoma is many in irregular elliposoidal.Suction point and other part mineralization pressures of haematoma cavity poor, the contiguous cerebral tissue of suction point is prior to other partial resets, and the local decompression that the tractive effect produced between cerebral tissue and suction cause can cause intracranial hemorrhage; In same puncture path, repeatedly aspirated by adjustment target spot, though above-mentioned risk can be reduced, but because hematoma exists atypical fluid behaviour, the form of aspiration procedure to residual hematoma is difficult to control, prior art cannot make hematoma synchronously reduce by equal proportion, in art or recurrent bleeding be the maximum risk of this operation all the time.
Summary of the invention
The present invention aims to provide a kind of Mutiple Targets orientation suction trocar, for replacing BACKLOUND pin, implementing the broken suction of stereotaxis intracerebral hematoma, drain, making hematoma be that equal proportion synchronously reduces, while effectively removing hematoma, reduce bleeding risk again.
The object of the invention is 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 arranged in trocar sheath; Wherein the front end of trocar sheath is for round blunt, and anterior tube wall is loose structure, has many rows suction socket that is equidistant, the distribution in sections; The suction socket be in row is evenly distributed on tube wall surrounding and aperture is identical; The anterior tube wall of inner sleeve also has with the corresponding position of trocar sheath suction socket the side opening that size, shape are identical; Rotate inner sleeve, the side opening of inner sleeve and trocar sheath front portion is overlapping or misplace; Time overlapping, the inner chamber of inner sleeve communicates with outside, and during dislocation, side opening is closed; And be provided with sealing device between the tail end of trocar sheath and inner sleeve.
Many rows suction socket of described trocar front portion distribution in sections, be discharged to middle aperture of arranging to end again from head, in first increasing progressively the Changing Pattern successively decreased again, pore size is between 1.0 ~ 5.0mm.
The distribution of the anterior side opening of described inner sleeve, can have side opening by each sections, can have side opening by portion segment, portion segment does not have side opening yet.
Described inner sleeve has on the sections of side opening, and the quantity of side opening can minimumly be 1, at most identical with trocar sheath.
This Mutiple Targets orientation suction trocar, with traditional BACKLOUND for than, without the need to implementing broken suction by adjustment paracentesis depth to hematoma, for common elliposoidal hematoma, broad in the middle, side opening design small in ends, is conducive to hematoma emptying, cerebral tissue synchronous reset around it, reduces bleeding risk again; Because trocar sheath is fixed, by changing the inner sleeve of different side opening distribution, need not repeated puncture cerebral tissue, can carry out that single target spot is emptying and Mutiple Targets is synchronously emptying, wait the emptying effect of different hematoma.
Accompanying drawing explanation
Fig. 1 is the structural representation of trocar, and inside and outside sleeve pipe is identical in the size of identical sections upper-side hole, shape; First sections is to interlude again to minor details section, and the size of side opening first increases progressively, 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 successively open, closed.
Detailed description of the invention
As shown in Figure 1, Mutiple Targets orientation suction trocar is made up of inner sleeve 2 and trocar sheath 1, and inner sleeve 2 is coaxially arranged in trocar sheath 1; Wherein trocar sheath 1 front end for circle blunt, be of value to and reduce tissue injury, inside and outside sleeve pipe is identical in the size of identical sections upper-side hole, shape; First sections is to interlude again to minor details section, and the size of side opening first increases progressively, then successively decreases.Be provided with sealing device between trocar sheath 1 tail end and inner sleeve 2, outstanding inner sleeve 2 can be twisted with the fingers or catcher brace by hands, drives inner sleeve 2 to rotate;
As shown in Figure 2, the side opening of described trocar sheath 1 front portion is evenly distributed, and pore size is between 1.0 ~ 5.0mm; The side opening of inner sleeve 2 has multiple distribution form.It can be the porous of the single hole of single sections, single sections; Also can be the single hole of multiple sections, the porous of multiple sections;
As shown in Figure 3, when inner sleeve 2 rotates, the side opening of inner sleeve 2 and trocar sheath 1 front portion is overlapping or misplace; 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 the fixed point producing single target spot is emptying; The single hole of multiple sections, then produce holoaxial to wheel scrape suction; The porous of multiple sections, then produce holoaxial to synchronously emptying.
Use procedure of the present invention is as follows: according to the length of hematoma major axis, selects 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 larger suction socket of centre is positioned at the middle part of hematoma major axis.During row suction, elliposoidal hematoma synchronously can reduce in equal proportion.Rotate inner sleeve 2 to aspirate, inner sleeve 2 rotates vertically simultaneously, and the side opening on each sections tube wall then order is open, closed, applies negative pressure simultaneously; Select different trocars can produce different broken suction effects to the long axial sludged blood of hematoma: to select different inner sleeves, the wheel in the face that can realize fixing a point, determine is scraped and to be aspirated or synchronously emptying.
Claims (4)
1. a Mutiple Targets orientation suction trocar, it is characterized in that, be made up of inner sleeve (2) and trocar sheath (1), inner sleeve (2) is coaxially arranged in trocar sheath (1); Wherein the front end of trocar sheath (1) is for round blunt, and anterior tube wall is loose structure, has many rows suction socket that is equidistant, the distribution in sections; The suction socket be in row is evenly distributed on tube wall surrounding and aperture is identical; Inner sleeve (2) anterior tube wall also has with the corresponding position of trocar sheath (1) suction socket the side opening that size, shape are identical; Rotate inner sleeve (2), the side opening of inner sleeve (2) and trocar sheath (1) front portion is overlapping or misplace; Time overlapping, the inner chamber of inner sleeve (2) communicates with outside, and during dislocation, side opening is closed; And be provided with sealing device between the tail end of trocar sheath (1) and inner sleeve (2).
2. a kind of Mutiple Targets orientation suction trocar according to claim 1, it is characterized in that, many rows suction socket of described sleeve pipe front portion distribution in sections, be discharged to middle aperture of arranging to end again in first increasing progressively the Changing Pattern successively decreased again from head, pore size is between 1.0 ~ 5.0mm.
3. a kind of Mutiple Targets orientation suction trocar according to claim 1, it is characterized in that, the distribution of described inner sleeve (2) anterior side opening can having side opening by each sections, can have side opening by portion segment yet, part does not have side opening.
4. a kind of Mutiple Targets orientation suction trocar according to claim 3, it is characterized in that, described inner sleeve (2) has on the sections of side opening, and the quantity of side opening can minimumly be 1, at most identical with trocar sheath.
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 true CN104248464A (en) | 2014-12-31 |
| CN104248464B CN104248464B (en) | 2016-08-24 |
Family
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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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184288A1 (en) * | 2020-03-19 | 2021-09-23 | Covidien Lp | Trocar for cleaning medical devices therein |
| CN116672032A (en) * | 2023-08-03 | 2023-09-01 | 清华大学 | thrombus aspiration catheter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993079A (en) * | 1974-12-14 | 1976-11-23 | Henriques De Gatztanondo Carlo | Device for percutaneous paracentesis, injection, drainage and catheterization |
| CN2056343U (en) * | 1989-10-04 | 1990-04-25 | 丁运良 | Multipurpose puncture needle |
| CN2061444U (en) * | 1989-07-04 | 1990-09-05 | 刘德玉 | Porous bulb-headed catheter puncturing needle |
| US5489269A (en) * | 1993-11-10 | 1996-02-06 | Cook, Incorporated | Hard tip drainage catheter |
| US6146400A (en) * | 1998-09-02 | 2000-11-14 | 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 |
-
2014
- 2014-09-24 CN CN201410492858.4A patent/CN104248464B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993079A (en) * | 1974-12-14 | 1976-11-23 | Henriques De Gatztanondo Carlo | Device for percutaneous paracentesis, injection, drainage and 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 |
| US6146400A (en) * | 1998-09-02 | 2000-11-14 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184288A1 (en) * | 2020-03-19 | 2021-09-23 | Covidien Lp | Trocar for cleaning medical devices therein |
| CN116672032A (en) * | 2023-08-03 | 2023-09-01 | 清华大学 | thrombus aspiration catheter |
| CN116672032B (en) * | 2023-08-03 | 2024-01-12 | 清华大学 | Thrombus aspiration catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104248464B (en) | 2016-08-24 |
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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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Granted publication date: 20160824 Termination date: 20180924 |