[특허]Safety needle for accessing the interior of a hip joint

Safety needle for accessing the interior of a hip joint 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/34 A61F-002/46 A61M-005/178
출원번호	US-0210584 (2008-09-15)
등록번호	US-8419763 (2013-04-16)
발명자 / 주소	Nikolchev, Julian Pamichev, Chris
출원인 / 주소	Pivot Medical, Inc.
대리인 / 주소	Pandiscio & Pandiscio
인용정보	피인용 횟수 : 0 인용 특허 : 80

초록 ▼

A safety needle comprising a handle; a hollow needle; a trigger carriage; an obturator; a spring; a trigger; a first latch and a second latch; the first latch, second latch and trigger being configured so that when the trigger carriage is in a distal position and the first latch set, and the trigger is thereafter pulled proximally, the first latch is released and the trigger carriage moves proximally into a proximal position, and thereafter releasing the trigger causes the trigger carriage to move into an intermediate position and set the second latch; and further wherein, when the trigger carriage is in its intermediate position and the distal end of the obturator engages tissue, the trigger carriage is moved proximally so as to release the second latch.

대표청구항 ▼

1. A method for accessing the interior of a hip joint, the method comprising: providing a safety needle comprising: a handle;a hollow needle fixedly mounted to the handle, the hollow needle having a sharp distal end;a trigger carriage slidably mounted to the handle for movement between a distal position and a proximal position;an obturator mounted to the trigger carriage and slidably received within the hollow needle, the obturator having a distal end wherein the distal end of the obturator is closed off by an end wall, and the obturator being sized such that (i) when the trigger carriage is in the distal position, the distal end of the obturator extends beyond the sharp distal end of the needle, and (ii) when the trigger carriage is in the proximal position, the distal end of the obturator is received within the sharp distal end of the needle;a spring for urging the trigger carriage into the distal position;a trigger mounted to the trigger carriage for urging the trigger carriage towards the proximal position when operated;a first latch for releasably locking the trigger carriage in the distal position when the first latch is set, the latch configured to be set or released by operation of the trigger;a second latch for releasably locking the trigger carriage in an intermediate position located between the distal position and the proximal position, wherein the distal end of the obturator partially emerges from the hollow needle when the trigger carriage is in the intermediate position, the second latch configured to be set or released by operation of the trigger;the first latch, the second latch, and the trigger being configured so that when the trigger carriage is in its distal position and the first latch is set, and the trigger is thereafter pulled proximally, the first latch is released and the trigger carriage moves proximally into its proximal position, and thereafter releasing the trigger causes the trigger carriage to move into the intermediate position and set the second latch; andfurther wherein, when the trigger carriage is in its intermediate position and the distal end of the obturator engages tissue surrounding the hip joint, the trigger carriage is moved proximally so as to release the second latch;configuring the safety needle so that the trigger carriage is in the distal position and the first latch is set by operation of the trigger;moving the trigger so that the first latch is released and the trigger carriage moves proximally into the proximal position;releasing the trigger so as to cause the trigger carriage to move into the intermediate position and set the second latch; andadvancing the safety needle so that the sharp distal end of the needle and the distal end of the obturator engage tissue surrounding the hip joint. 2. A method according to claim 1 wherein the hollow needle is releasably mounted to the handle. 3. A method according to claim 1 wherein the handle is hollow, and further wherein the trigger carriage is disposed within the handle. 4. A method according to claim 1 wherein the obturator is hollow and further wherein an opening is formed in the sidewall of the obturator just proximal to the end wall. 5. A method according to claim 1 wherein the obturator is releasably mounted to the trigger carriage. 6. A method according to claim 5 wherein the obturator is releasably mounted to the trigger carriage via a third latch. 7. A method according to claim 6 wherein the third latch comprises a finger for selectively engaging a notch formed in the obturator. 8. A method according to claim 1 wherein the spring is disposed between the trigger carriage and a release button, wherein the release button is slidably mounted to the handle, and further wherein the third latch is released when the release button is moved distally against the action of the spring. 9. A method according to claim 1 wherein the trigger is pivotally mounted to the trigger carriage. 10. A method according to claim 9 wherein the trigger comprises a finger-engaging portion, a distally-extending portion, and a proximally-extending portion. 11. A method according to claim 10 further comprising a second spring for biasing the finger-engaging portion of the trigger distally. 12. A method according to claim 10 wherein the first latch comprises the proximally-extending portion of the trigger. 13. A method according to claim 12 wherein the first latch is formed by engagement of the proximally-extending portion of the trigger with the handle. 14. A method according to claim 10 wherein the second latch comprises the distally-extending portion of the trigger. 15. A method according to claim 14 wherein the second latch is formed by engagement of the distally-extending portion of the trigger with the handle. 16. A method according to claim 1 wherein the handle comprises an internal chamber and a port for accessing the same, wherein the obturator extends through the internal chamber and comprises an opening in the sidewall of the obturator communicating with the internal chamber, and further wherein the handle comprises a sealing mechanism for engaging the obturator and preventing fluid from flowing out of the internal chamber about the periphery of the obturator. 17. A method according to claim 16 wherein the sealing mechanism is releasable so as to permit the obturator to be withdrawn from the internal chamber.

이 특허에 인용된 특허 (80)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Safety needle for accessing the interior of a hip joint 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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연합인증

Safety needle for accessing the interior of a hip joint 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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