CN2712278Y - Trocar - Google Patents
Trocar Download PDFInfo
- Publication number
- CN2712278Y CN2712278Y CN 200420107025 CN200420107025U CN2712278Y CN 2712278 Y CN2712278 Y CN 2712278Y CN 200420107025 CN200420107025 CN 200420107025 CN 200420107025 U CN200420107025 U CN 200420107025U CN 2712278 Y CN2712278 Y CN 2712278Y
- Authority
- CN
- China
- Prior art keywords
- closing member
- nook closing
- trocar
- sleeve pipe
- retracting cylinder
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a trocar belonging to the technical field of medical appliances. The trocar comprises a sleeve whose head is provided with an oblique needle edge. A needle core provided with an oblique edge penetrates in the sleeve, and the outer diameter of the needle core is equal to the inner diameter of the sleeve. A fish-hook-shaped hollowness is arranged at the front end part and behind the oblique edge of the needle core. The depth of the concaves of the fish-hook-shaped hollowness is smaller than the 1/2 of the diameter of the needle core. The back part of the sleeve is provided with the telescopic mechanism of the needle core. The utility model can extract biopsy tissues to conduct the pathologic diagnosis and can aspirate the called cell sap to conduct the cytologic diagnosis, and the accuracy rate of the diagnosis is high.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly a kind of trocar that extracts tumor tissues.
Background technology
When tumor or superficial tumor are carried out pathology detection, need obtain pathological section by operation usually, carry out routine then and detect.This mode process complexity, the misery that patient is caused is bigger, and may make the biopsy destruction that is squeezed, and influences the accuracy of medical diagnosis on disease.
The utility model content
This utility model purpose is to provide a kind of convenient pathology trocar that extracts in-vivo tumour or superficial tumor tissue.
For reaching above-mentioned purpose, this utility model adopts following technical scheme: a kind of trocar, comprise that head has the sleeve pipe of oblique pin sword, and be installed with the nook closing member of the oblique sword of band that external diameter equates with casing inner diameter in the sleeve pipe, the nook closing member leading section, tiltedly be provided with the barb-type recess behind the sword.
The barb-type recess concave surface degree of depth is less than 1/2 of nook closing member diameter.
The sleeve pipe rear portion is equipped with the nook closing member telescoping mechanism.
The sleeve pipe rear end is connected with expansion bolt, the nook closing member rear end is passed retracting cylinder and is connected with central plate, and two pressing back-ends of retracting cylinder both sides and retracting cylinder connect that central plate rear end elasticity is connected, front end is by hinged with its hinged pull bar and the expansion bolt that is installed on retracting cylinder and connected in the central plate front end through hole.
The sleeve pipe rear end is connected with needle tubing front end nipple, and nook closing member is connected with pintle in the needle tubing.
Nook closing member is outer, be provided with elastic component between pintle front end and the needle tubing front inner wall.
The design that this utility model adopts sleeve pipe to cooperate with interior cover nook closing member can be carried out biopsy and extract.Utilize the oblique sword of sleeve pipe head to thrust tumor or subcutaneous cyst, again nook closing member is pushed away and thrust wherein, utilize the nook closing member leading section, tiltedly the barb-type recess behind the sword extracts biopsy and is stored in the recess, can avoid the biopsy of getting to be squeezed, and can effectively improve the accuracy of pathological diagnosis.The barb-type recess concave surface degree of depth had both guaranteed nook closing member intensity less than 1/2 of nook closing member diameter, can satisfy the needs that extract biopsy again.The nook closing member telescoping mechanism that install at the sleeve pipe rear portion makes nook closing member capable of expansion and contraction, the convenient use.Utilize all right sucking-off exfoliative cyte liquid of this utility model, carry out cytodiagnosis.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the schematic cross-section that is connected of embodiment 1 central plate and retracting cylinder;
Fig. 3 is the structural representation of embodiment 2;
Fig. 4 is the structural representation of embodiment 3.
The specific embodiment
When defeating two pressing plates 6,, make expansion bolt 4 connect and move to needle end in the central plate 7 front end through holes, and the sleeve pipe 1 that drive is connected with it travels forward together in retracting cylinder 5 and institute by the transmission of pull bar 8.
Embodiment 2, the trocar as shown in Figure 3 comprise that head has the sleeve pipe 1 of oblique pin sword, are installed with the nook closing member 2 of the oblique sword of band that external diameter equates with casing inner diameter in the sleeve pipe.Be provided with barb-type recess 3 behind nook closing member 2 leading sections, the oblique sword.The barb-type recess 3 concave surface degree of depth are less than 1/2 of nook closing member diameter.
The nipple 9 of sleeve pipe 1 rear end and needle tubing 10 front ends is spirally connected, and nook closing member 2 is connected with pintle 11 in the needle tubing 10, and nook closing member is 2 outer, be provided with elastic component 12 between pintle 11 front ends and needle tubing 10 front inner wall.
Claims (6)
1, a kind of trocar is characterized in that, comprises that head has the sleeve pipe of oblique pin sword, is installed with the nook closing member of the oblique sword of band that external diameter equates with casing inner diameter in the sleeve pipe, the nook closing member leading section, tiltedly is provided with the barb-type recess behind the sword.
2, the trocar as claimed in claim 1 is characterized in that, the barb-type recess concave surface degree of depth is less than 1/2 of nook closing member diameter.
3, the trocar as claimed in claim 2 is characterized in that, the sleeve pipe rear portion is equipped with the nook closing member telescoping mechanism.
4, the trocar as claimed in claim 3, it is characterized in that, the sleeve pipe rear end is connected with expansion bolt, the nook closing member rear end is passed retracting cylinder and is connected with central plate, and two pressing back-ends of retracting cylinder both sides and retracting cylinder connect that central plate rear end elasticity is connected, front end is by hinged with its hinged pull bar and the expansion bolt that is installed on retracting cylinder and connected in the central plate front end through hole.
5, the trocar as claimed in claim 3 is characterized in that, the sleeve pipe rear end is connected with needle tubing front end nipple, and nook closing member is connected with pintle in the needle tubing.
6, the trocar as claimed in claim 5 is characterized in that, nook closing member is outer, be provided with elastic component between pintle front end and the needle tubing front inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107025 CN2712278Y (en) | 2004-06-21 | 2004-11-03 | Trocar |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420011099 | 2004-06-21 | ||
| CN200420011099.7 | 2004-06-21 | ||
| CN 200420107025 CN2712278Y (en) | 2004-06-21 | 2004-11-03 | Trocar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2712278Y true CN2712278Y (en) | 2005-07-27 |
Family
ID=34888232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107025 Expired - Fee Related CN2712278Y (en) | 2004-06-21 | 2004-11-03 | Trocar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2712278Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105899153A (en) * | 2013-09-27 | 2016-08-24 | 释放医疗股份有限公司 | Tissue incision device |
| RU199577U1 (en) * | 2020-03-12 | 2020-09-08 | Казбек Меджидович Аутлев | Telescopic trocar |
-
2004
- 2004-11-03 CN CN 200420107025 patent/CN2712278Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105899153A (en) * | 2013-09-27 | 2016-08-24 | 释放医疗股份有限公司 | Tissue incision device |
| US10413313B2 (en) | 2013-09-27 | 2019-09-17 | Release Medical, Inc. | Tissue incision device |
| US11464531B2 (en) | 2013-09-27 | 2022-10-11 | Release Medical, Inc. | Tissue incision device |
| RU199577U1 (en) * | 2020-03-12 | 2020-09-08 | Казбек Меджидович Аутлев | Telescopic trocar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109938779A (en) | A kind of Internal Medicine-Oncology puncture sampler | |
| CN2712278Y (en) | Trocar | |
| CN202036247U (en) | Pleura biopsy needle | |
| CN201469316U (en) | Living tissue puncture device for pathological section | |
| CN200957216Y (en) | One-way drainage pectoral cavity puncture against injure | |
| CN201840766U (en) | Three-cavity urethral catheter | |
| CN202589576U (en) | Thyroid gland puncture needle | |
| CN203763188U (en) | Novel tumor biopsy puncture needle | |
| CN201418773Y (en) | Medical puncture needle | |
| CN207821886U (en) | The compound visual abdominocentesis of one kind and peritoneal biopsy device | |
| CN209153779U (en) | One-handed performance for aspiration biopsy extracts needle core and negative pressure suction device | |
| CN215191821U (en) | Puncture sampling biopsy device | |
| CN207215513U (en) | A kind of medical excreta extractor | |
| CN101797408B (en) | Arteriovenous remaining needle | |
| CN109620305A (en) | A kind of pet tumor examination sampler | |
| CN215129123U (en) | Pathology department pathology sampling device | |
| CN218889689U (en) | Breast tumor puncture biopsy needle | |
| CN113855097A (en) | Improved biopsy needle | |
| CN2187438Y (en) | Negative pressure type viscera puncture device | |
| CN204765735U (en) | Pathological tissue extractor in art | |
| CN106344077A (en) | Biopsy and using method thereof | |
| CN205322369U (en) | Epididymis aspiration biopsy needle | |
| CN201213809Y (en) | Lung biopsy puncture needle | |
| CN219089390U (en) | Tissue biopsy sampling device | |
| CN219720749U (en) | Cervical clamp head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |