RU95113483A - PISTON STOCK SYSTEM FOR INJECTION DEVICE - Google Patents

PISTON STOCK SYSTEM FOR INJECTION DEVICE

Info

Publication number
RU95113483A
RU95113483A RU95113483/14A RU95113483A RU95113483A RU 95113483 A RU95113483 A RU 95113483A RU 95113483/14 A RU95113483/14 A RU 95113483/14A RU 95113483 A RU95113483 A RU 95113483A RU 95113483 A RU95113483 A RU 95113483A
Authority
RU
Russia
Prior art keywords
piston rod
thread
nut element
groove
protrusions
Prior art date
Application number
RU95113483/14A
Other languages
Russian (ru)
Other versions
RU2120808C1 (en
Inventor
Левандер Густав
Original Assignee
Фармациа Актиеболаг
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from SE9303568A external-priority patent/SE9303568D0/en
Application filed by Фармациа Актиеболаг filed Critical Фармациа Актиеболаг
Publication of RU95113483A publication Critical patent/RU95113483A/en
Application granted granted Critical
Publication of RU2120808C1 publication Critical patent/RU2120808C1/en

Links

Claims (7)

1. Система с поршневым штоком для использования в инъекционном устройстве для инъекционной ампулы, содержащая поршневой шток с однозаходной или многозаходной резьбой на его заранее установленной длине и гаечный элемент, взаимодействующий с указанной резьбой, отличающаяся тем, что резьба на поршневом штоке выполнена профилированной как, по меньшей мере одна винтовая канавка в поверхности указанного поршневого штока и с переходом каждой канавки после заранее установленной длины в продольную канавку в указанной поверхности, и возможностью изменения винтового движения поршневого штока за заранее установленной длиной на линейное движение в продольном направлении, и что с гаечным элементом для взаимодействия с указанной резьбой содержит по меньшей мере один направленный внутрь радиальный выступ для каждой нити резьбы, причем указанный выступ или выступы направляют указанный поршневой шток канавкой или канавками, образующими указанную резьбу.1. A system with a piston rod for use in an injection device for an injection ampoule, comprising a piston rod with a single or multiple thread on its predetermined length and a nut element interacting with the specified thread, characterized in that the thread on the piston rod is shaped as at least one helical groove in the surface of said piston rod and with the transition of each groove after a predetermined length into a longitudinal groove in said surface, and the possibility for changing the screw movement of the piston rod beyond the predetermined length by linear motion in the longitudinal direction, and that with the nut element for interacting with the specified thread contains at least one radial protrusion directed inward for each thread of thread, said protrusion or protrusions directing said piston rod groove or grooves forming the specified thread. 2. Система по п. 1, отличающаяся тем, что наружный диаметр поршневого штока соответствует внутреннему диаметру гаечного элемента, так что поршневой шток имеет скользящую посадку в гаечном элементе без какого-либо значительного радиального зазора. 2. The system according to claim 1, characterized in that the outer diameter of the piston rod corresponds to the inner diameter of the nut element, so that the piston rod has a sliding fit in the nut element without any significant radial clearance. 3. Система по п. 1 или 2, отличающаяся тем, что поршневой шток снабжен двухзаходной резьбой и что гаечный элемент снабжен двумя соответствующими, направленными внутрь радиальными выступами, которые с равным интервалом расположены по внутренней окружности указанного гаечного элемента. 3. The system according to claim 1 or 2, characterized in that the piston rod is provided with a double thread and that the nut element is equipped with two corresponding inwardly directed radial protrusions, which are equally spaced around the inner circumference of said nut element. 4. Система по п. 1 или 2, отличающаяся тем, что поршневой шток снабжен трехзаходной резьбой и что гаечный элемент снабжен тремя соответствующими, направленными внутрь радиальными выступами, которые с равным интервалом расположены по внутренней окружности указанного гаечного элемента. 4. The system according to claim 1 or 2, characterized in that the piston rod is provided with a three-way thread and that the nut element is equipped with three corresponding inwardly directed radial protrusions, which are equally spaced around the inner circumference of said nut element. 5. Система по одному из пп. 1 - 4, отличающаяся тем, что канавки или канавка в поршневом штоке имеют трапецеидальное или трехугольное поперечное сечение. 5. The system according to one of paragraphs. 1 to 4, characterized in that the grooves or groove in the piston rod have a trapezoidal or triangular cross-section. 6. Система по одному из пп. 1 - 5, отличающаяся тем, что нарезная часть поршневого штока снабжена защелкивающим стопорным механизмом для взаимодействия с выступом или выступами в гаечном элементе. 6. The system according to one of paragraphs. 1 to 5, characterized in that the threaded part of the piston rod is equipped with a snap locking mechanism for interacting with the protrusion or protrusions in the nut element. 7. Система по одному из пп. 1 - 6, отличающаяся тем, что инъекционная ампула является многокамерной. 7. The system according to one of paragraphs. 1 to 6, characterized in that the injection ampoule is multi-chamber.
RU95113483A 1993-10-29 1994-10-10 Piston rod system useable in injection devices RU2120808C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9303568A SE9303568D0 (en) 1993-10-29 1993-10-29 Improvements in injection devices
SE9303568-1 1993-10-29
PCT/SE1994/000950 WO1995011711A1 (en) 1993-10-29 1994-10-10 Improvements in injection devices

Publications (2)

Publication Number Publication Date
RU95113483A true RU95113483A (en) 1997-07-27
RU2120808C1 RU2120808C1 (en) 1998-10-27

Family

ID=20391576

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95113483A RU2120808C1 (en) 1993-10-29 1994-10-10 Piston rod system useable in injection devices

Country Status (16)

Country Link
US (2) US5728075A (en)
EP (1) EP0676969B1 (en)
JP (1) JP2683628B2 (en)
AT (1) ATE175583T1 (en)
AU (1) AU667789B2 (en)
CA (1) CA2151832C (en)
DE (1) DE69415960T2 (en)
DK (1) DK0676969T3 (en)
ES (1) ES2126158T3 (en)
FI (1) FI113622B (en)
GR (1) GR3029613T3 (en)
NO (1) NO309801B1 (en)
NZ (1) NZ275174A (en)
RU (1) RU2120808C1 (en)
SE (1) SE9303568D0 (en)
WO (1) WO1995011711A1 (en)

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