CN2824854Y - A cannula type thorax puncture needle with blunt round needle - Google Patents
A cannula type thorax puncture needle with blunt round needle Download PDFInfo
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- CN2824854Y CN2824854Y CN 200520110102 CN200520110102U CN2824854Y CN 2824854 Y CN2824854 Y CN 2824854Y CN 200520110102 CN200520110102 CN 200520110102 CN 200520110102 U CN200520110102 U CN 200520110102U CN 2824854 Y CN2824854 Y CN 2824854Y
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- needle
- pin
- interior
- needle holder
- spacing hole
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Abstract
The utility model relates to a sleeve type thorax puncture needle with a blunt round needle head, which belongs to medical equipment. The patent classification number is A61M5/32. The utility model is composed of an inner needle and an outer needle, wherein the inner needle is sheathed in the outer needle and the inner needle can slide in the outer needle. The inner needle slides in the outer needle to be positioned in a first position, and can slide to be positioned in a second position. When the inner needle is positioned in the first position, a needle tip of the outer needle is in front of a needle tip of the inner needle. When the inner needle is positioned in the second position, the needle tip of the outer needle is behind the needle tip of the inner needle. When the inner needle is positioned in the first position, a puncture needle of the outer needle is punctured into a thorax. After hands have dropping feelings, the needle insertion is stopped. When the outer needle slides to be positioned in the second position, a blunt round needle head is exposed, a needle head of the outer needle is hidden behind the blunt round needle head, and meanwhile, an oval hole on the side surface of the blunt round needle head is used for sucking effusion in the thorax. The puncture needle can effectively avoid that the puncture needle punctures visceral pleurae and lung tissue, and the accidents of pneumothorax or haemopneumothorax can be avoided. The utility model has the advantages of safety and reliability.
Description
Technical field
This utility model relates to the blunt round needle cephalothorax of a kind of shell type chamber puncture needle, and belong to medical instruments field, Patent classificating number: A61M 5/32.
Background technology
In field of medical appliances, normally used thoracentesis needle, needle point is oblique sharp point, in operating process, along with thoracic cavity water is drawn out of, lungs open, visceral pleura and lung film touch oblique sharp point easily, are easy to be wounded by stabbing, and cause gas in the alveolar to drain in the pleural space and produce pneumothorax, can cause blood to ooze out when stabbing severe patient or injuring blood vessel, stay and produce hemopneumothorax in the pleural space; Consequence is serious even jeopardize people's life.
Summary of the invention
The purpose of this utility model provides the blunt round needle cephalothorax of a kind of shell type chamber puncture needle.Can make the puncture needle of oblique sharp point, after lunging the thoracic cavity, be hidden in after the blunt round needle head, avoid stabbing visceral pleura and lung tissue, avoid the accident of pneumothorax or hemopneumothorax to take place, for the patient provides further safety guarantee.
The technical solution of the utility model is:
The blunt round needle cephalothorax of a kind of shell type chamber pricker is characterized in that, is made up of interior pin and outer pin, and wherein interior needle guard is contained in the outer pin, and can be in interior slip; Interior pin slides in the pin outside, can be positioned primary importance, also slidably arrives second position location; When being positioned primary importance, outer pin needle point is before interior pin needle point; When being positioned the second position, outer pin needle point is after interior pin needle point.
Pin comprises needle point, needle body, needle holder in described, and wherein needle point is a blunt round, has an oval pore to communicate with the pin endoporus in the needle point side.Be with a sealing ring at needle body and needle holder connecting portion; Be connected with medical rubber hose at the needle holder afterbody, a pair of wedge-shaped projection arranged at the needle holder middle part.
Described outer pin comprises needle point, needle body, needle holder, and wherein needle point is oblique sharp point, and the pin endoporus leads directly to the needle point direction, and pin endoporus internal diameter is greater than interior pin external diameter; Be provided with primary importance spacing hole and second position spacing hole at the needle holder corresponding site; Between primary importance spacing hole and second position spacing hole, 90 ° of directions have a pair of forward chute; In the pin time, the wedge-shaped projection on the needle holder of interior pin can be slided in above-mentioned forward chute, and also can be positioned in the described spacing hole outside interior needle guard is contained in.
Needle guard is contained in outer pin when interior in described, and when interior pin slided into primary importance, the wedge-shaped projection on the interior pin needle holder just in time slided into the primary importance place of outer pin needle holder, rotate 90 ° of directions after, wedge-shaped projection is located in spacing hole.
When interior pin slided into the second position, the wedge-shaped projection on the interior pin needle holder just in time slided into the second position place on the outer pin needle holder, rotate 90 ° of directions after, wedge-shaped projection is located in spacing hole.At this moment, interior pin needle holder forward end seal circle just in time is pressed in the needle holder bottom in the outer pin.
According to technique scheme, because the blunt circle of interior pin syringe needle, the head of threading a needle outward is hidden in thereafter, therefore, can not stab visceral pleura and lung tissue, thereby avoid the generation of hemopneumothorax or pneumothorax accident.There is oval pore interior pin side, and both just syringe needle slightly propped up the visceral layer tissue, still can not influence the extraction of hydrothorax.
Description of drawings
Fig. 1 is the structural representation of the inside and outside pin of the blunt round needle cephalothorax of a kind of shell type of this utility model chamber puncture needle when being in primary importance.
Fig. 2 is the structural representation of the inside and outside pin of the blunt round needle cephalothorax of a kind of shell type of this utility model chamber puncture needle when being in the second position.
Fig. 3 is the outer needle construction sketch map of the blunt round needle cephalothorax of a kind of shell type of this utility model chamber puncture needle.
Fig. 4 is a needle construction sketch map in the puncture needle of the blunt round needle cephalothorax of a kind of shell type of this utility model chamber.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is carried out detailed narration.Fig. 1, Fig. 2 are respectively the structural representation of the inside and outside pin of the blunt round needle cephalothorax of a kind of shell type of this utility model chamber puncture needle when being in primary importance, the second position.As can be seen from the figure this utility model is assembled by interior pin 1 and outer pin 2; Wherein interior pin 1 is sleeved in outer pin 2 holes, and slides in pin 2 holes outside; Interior pin 1 slides in pin 2 holes outside, can be positioned on primary importance 3, also can slide into the second position 4 location.
When interior pin 1 slided into the second position 4, the wedge-shaped projection 12 on interior pin 1 needle holder 8 just in time slided into the second position 4 spacing hole places on outer pin 2 needle holders 14, rotate 90 ° of directions after, wedge-shaped projection 12 just in time herein the location.Pin 1 needle holder 8 forward end seal circles 10 just in time are pressed in needle holder 14 bottoms of outer pin in this moment.
The using method of the blunt round needle cephalothorax of shell type of the present utility model chamber puncture needle is as follows:
The puncture needle that suit is finished, promptly in pin 1 wedge-shaped projection 12 when primary importance 3, the blunt round needle head 6 of puncture needle 5 pro-this moment after, as shown in Figure 1.Operation is thrust chest with pricker 5 routinely.After hands feels that syringe needle 5 has the sense that falls through (outer syringe needle 5 penetrates parietal pleura), stop inserting needle; Hold outer needle holder 14 with left hand, 90 ° of wedge-shaped projection 12 reverse rotations of pin 1 in pinching with the right hand, slide into second spacing hole 41 place forward along slotted hole 15, rotate 90 ° again, wedge-shaped projection 12 is fixed in the second position spacing hole 41, this moment, blunt round needle head 6 exposed, and outer pin 2 oblique pricker syringe needles 5 are hidden in about thereafter 5mm place, as shown in Figure 2.
After this operation routinely, hydrothorax can be extracted out by round needle head 6 lateral oval pores 9.This utility model can make puncture needle after lunging the thoracic cavity, avoids stabbing visceral pleura and lung tissue and avoids pneumothorax or hemopneumothorax accident to take place, safety, reliable.
With the identical various technical schemes of this utility model design, all belong within this claim protection domain.
Claims (3)
1. the blunt round needle cephalothorax of a shell type chamber puncture needle is characterized in that, is made up of interior pin and outer pin, and wherein interior needle guard is contained in the outer pin, and can be in interior slip; Interior pin slides in the pin outside, can be positioned primary importance, also slidably arrives second position location; When being positioned primary importance, outer pin needle point is before interior pin needle point; When being positioned the second position, outer pin needle point is after interior pin needle point.
2. according to the blunt round needle cephalothorax of the described a kind of shell type of claim 1 chamber puncture needle, it is characterized in that described interior pin comprises needle point, needle body, needle holder, wherein needle point is a blunt round, has an avette circular hole to communicate with the pin endoporus in the needle point side.Be with a sealing ring at needle body and needle holder connecting portion; Be connected with medical rubber hose at the needle holder afterbody, a pair of wedge-shaped projection arranged at the needle holder middle part;
Described outer pin comprises needle point, needle body, needle holder, and wherein needle point is oblique sharp point, and the pin endoporus leads directly to the needle point direction, and pin endoporus internal diameter is greater than interior pin external diameter; Be provided with primary importance spacing hole and second position spacing hole at the needle holder corresponding site; Between primary importance spacing hole and second position spacing hole, rotate 90 ° of directions, a pair of forward chute is arranged; In the pin time, the wedge-shaped projection on the needle holder of interior pin can be slided in above-mentioned forward chute, and also can be positioned in the described spacing hole outside interior needle guard is contained in.
3. according to the blunt round needle cephalothorax of the described a kind of shell type of claim 2 chamber pricker, it is characterized in that, when needle guard is contained in the outer pin in described, when interior pin slides into primary importance, wedge-shaped projection on the interior pin needle holder just in time slides into the primary importance place of outer pin needle holder, after rotating 90 ° of directions, wedge-shaped projection is located at the spacing hole place;
When interior pin slided into the second position, the wedge-shaped projection on the interior pin needle holder just in time slided into the second position place on the outer pin needle holder, rotate 90 ° of directions after, wedge-shaped projection is located in spacing hole.At this moment, interior pin needle holder forward end seal circle just in time is pressed in the needle holder bottom in the outer pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110102 CN2824854Y (en) | 2005-06-17 | 2005-06-17 | A cannula type thorax puncture needle with blunt round needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110102 CN2824854Y (en) | 2005-06-17 | 2005-06-17 | A cannula type thorax puncture needle with blunt round needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824854Y true CN2824854Y (en) | 2006-10-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520110102 Expired - Fee Related CN2824854Y (en) | 2005-06-17 | 2005-06-17 | A cannula type thorax puncture needle with blunt round needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824854Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040504A (en) * | 2013-01-11 | 2013-04-17 | 江苏蓝域创新技术投资有限公司 | Thoracocentesis drainage needle |
| CN104921762A (en) * | 2015-07-01 | 2015-09-23 | 龙飞 | Endoscope puncture sampling needle used for bronchoscope |
| CN107582206A (en) * | 2017-09-06 | 2018-01-16 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of milk cow ovarian cyst puncture needle |
| CN110251213A (en) * | 2019-07-18 | 2019-09-20 | 沈敏峰 | A kind of locking double-jacket tube medical safe puncture needle |
| WO2022158405A1 (en) * | 2021-01-19 | 2022-07-28 | テルモ株式会社 | Puncture needle |
-
2005
- 2005-06-17 CN CN 200520110102 patent/CN2824854Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040504A (en) * | 2013-01-11 | 2013-04-17 | 江苏蓝域创新技术投资有限公司 | Thoracocentesis drainage needle |
| CN104921762A (en) * | 2015-07-01 | 2015-09-23 | 龙飞 | Endoscope puncture sampling needle used for bronchoscope |
| CN107582206A (en) * | 2017-09-06 | 2018-01-16 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of milk cow ovarian cyst puncture needle |
| CN107582206B (en) * | 2017-09-06 | 2024-03-22 | 中国农业科学院兰州畜牧与兽药研究所 | Cow ovarian cyst puncture needle |
| CN110251213A (en) * | 2019-07-18 | 2019-09-20 | 沈敏峰 | A kind of locking double-jacket tube medical safe puncture needle |
| CN110251213B (en) * | 2019-07-18 | 2023-12-22 | 沈敏峰 | Medical safety puncture needle with locking double-sleeve |
| WO2022158405A1 (en) * | 2021-01-19 | 2022-07-28 | テルモ株式会社 | Puncture needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20100617 |