CN110604844A - Rotation-free loading needle cylinder with pressure sleeve and injector system - Google Patents
Rotation-free loading needle cylinder with pressure sleeve and injector system Download PDFInfo
- Publication number
- CN110604844A CN110604844A CN201910551870.0A CN201910551870A CN110604844A CN 110604844 A CN110604844 A CN 110604844A CN 201910551870 A CN201910551870 A CN 201910551870A CN 110604844 A CN110604844 A CN 110604844A
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- Prior art keywords
- syringe
- plunger
- barrel body
- protective
- protective sleeve
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Classifications
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/007—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to a rotation-free loading syringe and injector system with a pressure sleeve, which comprises: the syringe barrel body comprises a barrel body far end, a barrel body near end and a barrel body center section, the barrel body far end comprises an injection neck and a conical surface, the barrel body center section is a barrel body with the same outer diameter and inner diameter in the whole section, the barrel body near end comprises a barrel body of the barrel body center section and an interface with a plurality of grooves, the barrel body is fixedly connected with the protective sleeve through the interface with the grooves, the piston comprises the conical surface, a sealing ring, a step of a clamping sealing ring and a circular boss with the step, the sealing ring is matched with the step of the clamping sealing ring, and the push rod and the boss are locked through the step. The invention is applied to equipment such as tomography equipment (CT), magnetic resonance equipment (MRI), digital subtraction angiography equipment (DSA) and the like, improves the user experience and saves the installation time of the user.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a rotation-free loading syringe with a pressure sleeve and an injector system.
Background
In many medical diagnostic and therapeutic procedures, a doctor or other person injects a contrast media into a patient in conjunction with Computed Tomography (CT), Digital Subtraction Angiography (DSA), magnetic resonance system (MR) imaging to assist in the diagnosis of the doctor.
Contrast agents are typically delivered by manual or automatic injection devices, through veins or arteries to a detection site, and images of the desired tissue site are obtained by absorbing X-rays or changing the signal strength of the tissue in the volume under magnetic resonance, which can be displayed on a monitor and recorded. The typical manual injection consists of a contrast medium source, a physiological saline source, a syringe capable of being pushed manually and a connecting pipeline. The contrast medium or saline is manually aspirated by the operator, and then the injection is manually performed by the operator. The flow rate, pressure and injection volume of the whole injection process are influenced by the force and technology of an operator, and the pressure required by injection is higher because the fluid is thicker and the speed is required to be higher during injection; the operator often does this which results in fatigue and the pressure, flow rate cannot be precisely controlled. Therefore, the existing injection system in a high-pressure injection environment generally needs a pressure protection sleeve and a corresponding fixing support, and the space occupied by the syringe fixing support is generally large, so that the size of the injection system is heavy, and the mounting operation of the syringe is inconvenient.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rotation-free loading syringe with a pressure sleeve and an injector system, which can improve the user experience and save the installation time of the user.
The invention is realized by the following steps: a rotation-free loading syringe and injector system with a pressure jacket comprising: the syringe body comprises a distal end of the syringe body, a proximal end of the syringe body and a central section of the syringe body, wherein the distal end comprises an injection neck and a conical surface, the central section is a whole section of the syringe body with the same outer diameter and inner diameter, and the proximal end comprises a syringe body with an inner diameter slightly larger than that of the central section and a connector with a plurality of grooves; the cylinder body is connected with the protective sleeve by means of an interface with a plurality of grooves so as to be fixed and not rotate, the piston consists of a conical surface, a sealing ring, a step for clamping the sealing ring and a plurality of elastic clamping claws, the sealing ring is matched with the step for clamping the sealing ring, and the push rod is locked with the elastic clamping claws so as to drive the piston to move back and forth.
Furthermore, the near end of the cylinder body is provided with a plurality of groove interfaces, and the shape of the groove interfaces is not limited and can comprise saw-tooth shapes, circular shapes, rectangular shapes, trapezoidal shapes and the like.
Furthermore, the tail end of the elastic claw of the piston is provided with a convex arc surface or other convex structures which interact with the push rod when the push rod retreats, and the elastic claw of the piston has elasticity in the radial direction and can be bounced off when the push rod is jointed or disconnected.
Furthermore, the syringe protective sleeve consists of a protective sleeve cover and a protective sleeve main body and is used for protecting the syringe from injection in a 1200psi environment;
furthermore, the protective sleeve cover is matched with the needle cylinder body and the protective sleeve main body, the protective sleeve cover can enable the needle cylinder body to penetrate through the protective sleeve cover and be tightly matched with the conical surface of the needle cylinder body, and meanwhile, the protective sleeve cover is connected with the protective sleeve main body in a rotating mode, a threaded mode and the like; the protective sleeve main body consists of a cylinder body with the same outer diameter and a near end with a rotary flange, and is matched and connected with the cylinder body of the syringe and the protective sleeve cover.
Further, the connection between the protective cap and the protective sleeve main body is in a threaded connection form, but not limited to this form, and may also include a form in which the sliding block rotates to a position for connection, the number of the elastic claws of the piston may be multiple, usually 6, and at least 2 of the inner wall sizes of the protective cap are consistent with the conical surface of the syringe barrel and are tightly fitted, and the outlet of the protective cap can pass through the injection neck of the syringe barrel.
Furthermore, the inner wall of the near end of the protective sleeve forms a bulge which is contacted with the near end of the syringe, so that the syringe can be limited to move backwards in the axial direction and rotate around the axial direction.
Further, the connection form of the protective sleeve body and the injector is a slide block rotation to position form or a thread connection.
Furthermore, the push rod comprises a push rod far end, a push rod near end and a push rod middle section, wherein the push rod far end is provided with an end surface recess and is engaged with the piston in a radial movement mode.
Furthermore, the end surface of the push rod is sunken to form a step, and an opening is arranged in one direction.
According to the high-pressure injection device and the high-pressure injection system, the injection detection state and the automatic control device are arranged, so that the injection dosage, the liquid flow rate, the pressure parameters, the multi-stage injection and the like can be accurately controlled in the injection process, and more benefits are provided for operators and patients.
Drawings
FIG. 1 is a schematic view of a rotationally loaded syringe having a pressure jacket according to an embodiment of the present invention;
FIG. 2 is a schematic view of a syringe mounting arrangement according to an embodiment of the present invention;
FIG. 3 is a schematic view of a syringe having a plurality of grooves at a proximal end and a flange at a proximal end according to an embodiment of the present invention;
FIG. 4 is an exploded view of the piston in an embodiment of the present invention;
FIG. 5 is a schematic view of a non-rotating piston according to an embodiment of the present invention;
FIG. 6 is a schematic view of a pressure jacket according to an embodiment of the present invention;
FIG. 7 is a schematic view of an end cap of a pressure protection sleeve in an embodiment of the invention;
FIG. 8 is a schematic structural diagram of a push rod provided in an embodiment of the present invention;
FIG. 9 is a schematic view of the installation effect of the non-rotating syringe system provided in the embodiment of the present invention;
FIG. 10 is a schematic view of a non-rotating syringe piston coupled to a plunger according to an embodiment of the present invention;
in the drawings: 1-a syringe body; 10-the proximal end of the barrel; 11-barrel central section; 12-barrel distal end; 100-grooves; 2-a piston; 20-sealing ring; 21-a piston body; 210-a boss; 211-step; 212-conical surface; 3-a protective sheath body; 30-bulge; 31-inner wall flange; 32-an outer wall flange; 33-barrel distal end; 4-protective sleeve end cover; 40-round holes; 41-a connecting structure; 5-a push rod; 50-end surface concave; 51-open mouth; 6-syringe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-10, the present invention provides a rotation-free loading syringe and injector system with a pressure jacket, comprising: the syringe body comprises a far end of the syringe body, a near end of the syringe body and a central section of the syringe body, wherein the far end comprises an injection neck and a conical surface, the central section is a whole section of the syringe body with the same outer diameter and inner diameter, and the near end comprises a syringe body with an inner diameter slightly larger than that of the central section and a connector with a plurality of grooves. The cylinder body is connected with the protective sleeve by means of an interface with a plurality of grooves so as to be fixed and not rotate, the piston consists of a conical surface, a sealing ring, a step for clamping the sealing ring and a plurality of elastic clamping claws, the sealing ring is matched with the step for clamping the sealing ring, and the push rod is locked with the elastic clamping claws so as to drive the piston to move back and forth.
The near end of the cylinder body is provided with a plurality of groove interfaces, and the shape of the groove interfaces is not limited and can comprise saw-tooth shapes, circular shapes, rectangular shapes, trapezoidal shapes and the like.
The tail end of the elastic claw of the piston is provided with a convex arc surface or other convex structures which interact with the push rod when the push rod retreats, and the elastic claw of the piston has elasticity in the radial direction and can be bounced off when the push rod is jointed or disconnected.
The needle cylinder protective sleeve consists of a protective sleeve cover and a protective sleeve main body and is used for protecting the needle cylinder from injecting in a 1200psi environment;
the protective sleeve cover is matched with the syringe body and the protective sleeve main body, the syringe body can penetrate through the protective sleeve cover and is tightly matched with the conical surface of the syringe body, and meanwhile, the protective sleeve cover is connected with the protective sleeve main body in a rotating mode, a threaded mode and the like; the protective sleeve main body consists of a cylinder body with the same outer diameter and a near end with a rotary flange, and is matched and connected with the cylinder body of the syringe and the protective sleeve cover.
The connection between the protective cap and the protective sleeve main body is in a threaded connection form, but not limited to the threaded connection form, and the connection can also comprise a form that a sliding block rotates to a position, the number of the elastic claws of the piston can be multiple, usually 6, and the size of the inner wall of at least 2 protective caps is consistent with that of the conical surface of the syringe barrel body and is in tight fit, and the outlet of the protective cap can pass through the injection neck of the syringe barrel body.
The inner wall of the near end of the protective sleeve forms a bulge which is contacted with the near end of the syringe, so that the syringe can be limited to move backwards in the axial direction and rotate around the axial direction.
The connection form of the protective sleeve main body and the injector is a slide block rotation to position form or a threaded connection.
The push rod comprises a push rod far end, a push rod near end and a push rod middle section, wherein the push rod far end is provided with an end surface recess and is engaged with the piston in a radial movement mode.
The end face of the push rod is sunken to form a step, and the opening is arranged in one direction.
Specifically, as shown in fig. 1, the appearance of the syringe with pressure jacket and without rotation loading is shown. The main components of the syringe and the protective sleeve are a high-pressure injection system syringe and a protective sleeve, as shown in figure 2, the syringe comprises a syringe body (1), a piston (2), a protective sleeve main body (3) and a protective sleeve end cover (4).
As shown in fig. 2, the barrel consists of a distal end (12), a proximal end (10) and a central section (11): the distal end is composed of an injection neck and a conical surface, the central section is a cylinder body with the same outer diameter and inner diameter in the whole section, and the proximal end is composed of a cylinder body with the inner diameter slightly larger than that of the central section and a connector with a plurality of grooves (100).
As shown in FIG. 3, the number of the grooves of the cylinder is not limited, and may be one or more than one. The shape may be rectangular, saw-toothed, trapezoidal, or arcuate.
The groove at the proximal end of the syringe can be a flange, and the number of the grooves is not limited, and can be one or more. The shape may be rectangular, saw-toothed, trapezoidal, or arcuate.
Referring to fig. 4 and 5, the non-rotating piston comprises a base (20), a jaw body (21) and a sealing ring (22). The clamping jaw is characterized in that the clamping jaw body is provided with a plurality of extending clamping jaws (210) which can bend and rebound in the radial direction, and the inner sides of the tail ends of the clamping jaws are provided with protrusions (211).
The end of the elastic claw (210) of the piston is provided with a convex arc surface (211) or other convex structures, so that the convex is arranged on a circular ring.
The number of the elastic claws of the piston is at least 2.
Referring to fig. 6 and 7, a syringe protection sleeve for protecting a syringe from injection in a 1200psi environment is composed of a protection sleeve cover and a protection sleeve body.
As shown in fig. 5, the syringe protective sleeve body is cylindrical, and the inner wall of the proximal end of the syringe protective sleeve body is provided with a bulge (30) which can limit the syringe from moving backwards in the axial direction.
The proximal end of the body of the barrel shield has a flange (31) on its inside wall that engages a groove in the barrel to limit axial rotation of the barrel. The number of the flanges is not limited, and may be one or more. The shape may be rectangular, saw-toothed, trapezoidal, or arcuate.
The groove on the inner wall of the proximal end of the protective sleeve can be a flange, the number of the grooves is not limited, and the groove can be one or more than one. The shape may be rectangular, saw-toothed, trapezoidal, or arcuate.
The outer wall of the sleeve body also has a flange (32) in the form of a generally circumferentially uniform thickness projection. Which are generally two parts of symmetry.
The distal end (33) of the body is attached to the end cap of the sheath by means including, but not limited to, threaded connection, flange spin lock, etc.
As shown in fig. 6, the protective cover is a cavity formed by the proximal end of a segment of cylinder and the distal end of a segment of cone, and the size of the inner wall of the protective cover is consistent with the conical surface of the syringe body and is tightly matched with the conical surface of the syringe body.
The inner wall of the proximal end of the end cap of the protective sleeve contains but is not limited to a connecting structure (41) such as threads or a flange. The outer wall has a raised or recessed structure (42) to facilitate manual tightening of the end cap for rotation. The shape is generally striated in the axial direction.
The top of the far end of the protective sleeve end cover is provided with a round hole (40) which is an injection neck passing through the syringe. The round hole is positioned at the center of the end cover cone part and is axially oriented.
The syringe is contained within the body of the sheath and is restrained from rotating and moving axially rearward. The protective sleeve cover can enable the syringe body to penetrate through the protective sleeve cover and be tightly matched with the conical surface of the syringe body, and meanwhile, the protective sleeve cover is connected with the protective sleeve main body in a rotating mode, a threaded mode and the like.
Referring to fig. 8, a push rod, which is generally cylindrical in shape, has an arcuate recess (51) formed in the outer circumferential surface of the end thereof to form a ring shape, and has a transition slope (50) on the outer side and end surface of the recess. The annular recess is engaged with the annular protrusion of the piston to drive the piston to move back and forth.
As shown in fig. 9 and 10, the operation method of the system: the plunger is loaded into the barrel, noting that the jaws of the plunger are in the proximal position of the barrel. The rear end of the barrel is then loaded from the front of the shield and an attempt is made to rotate the barrel to the end (at which point the rear end of the barrel contacts the flange portion of the inner wall of the rear end of the shield) until the barrel can no longer rotate (at which point the rear recess or flange of the barrel engages the flange or recess of the shield). The sleeve end caps are then fitted and secured tightly where they are locked by structural engagement such as threads or flanges. The loaded assembly is then loaded into a syringe (6). Note that the end of the plunger rod of the syringe is retracted to an extreme position prior to loading the assembly. The orientation is noted when pushing the boot, and when the boot rear end reaches a defined position, it is rotationally fixed (via the boot outer wall flange to the syringe). Finally, the push rod is extended slowly until the push rod engages the piston. The annular recess at the end of the push rod contacts the annular projection of the piston catch after engagement.
When the push rod is connected with or disconnected from the piston, the piston must be at the back end of the syringe, and the claws can be in the springing-open position. When the piston is in the syringe, the claw cannot be bounced off due to the limit of the syringe wall, and the piston cannot be engaged with or disengaged from the push rod.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A rotation-free loading syringe and injector system having a pressure jacket, comprising: the syringe body comprises a distal end of the syringe body, a proximal end of the syringe body and a central section of the syringe body, wherein the distal end comprises an injection neck and a conical surface, the central section is a whole section of the syringe body with the same outer diameter and inner diameter, and the proximal end comprises a syringe body with an inner diameter slightly larger than that of the central section and a connector with a plurality of grooves; the cylinder body is connected with the protective sleeve by means of an interface with a plurality of grooves so as to be fixed and not rotate, the piston consists of a conical surface, a sealing ring, a step for clamping the sealing ring and a plurality of elastic clamping claws, the sealing ring is matched with the step for clamping the sealing ring, and the push rod is locked with the elastic clamping claws so as to drive the piston to move back and forth.
2. The non-rotating loading syringe and injector system with pressure jacket of claim 1 wherein the proximal end of the barrel has a plurality of notch interfaces, the notch interfaces are not limited in shape and may include saw-tooth, circular, rectangular, trapezoidal, etc.
3. A rotation-free pressure jacket loaded syringe and injector system as claimed in claim 1, wherein the resilient fingers of the plunger are provided with a raised radius or other raised structure at the end of the plunger to interact with the plunger as it is retracted, the resilient fingers of the plunger being radially resilient and spring open upon engagement or disengagement of the plunger.
4. The syringe and injector system of claim 1, wherein the syringe protective sheath comprises a protective sheath cover and a protective sheath body for protecting the syringe from injection at 1200 psi.
5. The syringe and injector system with pressure jacket and no-rotation loading of claim 4, wherein the protective cover cap is engaged with the syringe body and the protective cover body, and the protective cover cap allows the syringe body to pass through and tightly engage with the conical surface of the syringe body, and is connected with the protective cover body by means of rotation, screw threads, etc.; the protective sleeve main body consists of a cylinder body with the same outer diameter and a near end with a rotary flange, and is matched and connected with the cylinder body of the syringe and the protective sleeve cover.
6. The system of claim 4, wherein the connection between the protective cap and the protective sleeve body is a threaded connection, but not limited thereto, and may also include a slide block rotated to a position for connection, the number of the elastic claws of the piston may be plural, usually 6, and at least 2, the size of the inner wall of the protective cap is consistent with the conical surface of the syringe barrel, and the inner wall of the protective cap is tightly fitted, and the outlet of the protective cap can pass through the injection neck of the syringe barrel.
7. The syringe and injector system of claim 4, wherein the protective sleeve has a proximal end with a protrusion formed on an inner wall thereof for contacting the proximal end of the syringe to limit axial rearward movement of the syringe and axial rotation of the syringe.
8. The syringe and injector system of claim 5, wherein the protective sleeve body is connected to the injector by a slide to position connection or by a screw connection.
9. The syringe and injector system of claim 1, wherein the plunger comprises a distal plunger end, a proximal plunger end, and a middle plunger section, the distal plunger end defining the end recess and being engaged for radial movement of the piston.
10. The system of claim 1, wherein the plunger is recessed with a step in the end face to provide a unidirectional opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551870.0A CN110604844B (en) | 2019-06-25 | 2019-06-25 | Rotation-free loading needle cylinder with protective sleeve end cover and injector system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551870.0A CN110604844B (en) | 2019-06-25 | 2019-06-25 | Rotation-free loading needle cylinder with protective sleeve end cover and injector system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110604844A true CN110604844A (en) | 2019-12-24 |
| CN110604844B CN110604844B (en) | 2022-06-03 |
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| CN201910551870.0A Active CN110604844B (en) | 2019-06-25 | 2019-06-25 | Rotation-free loading needle cylinder with protective sleeve end cover and injector system |
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| CN101360525A (en) * | 2006-11-22 | 2009-02-04 | 马林克罗特公司 | Universal adapter for a syringe plunger |
| CN101743025A (en) * | 2007-06-04 | 2010-06-16 | 贝克顿·迪金森公司 | Stopper and plunger rod for a pre-filled syringe |
| CN105311712A (en) * | 2015-11-13 | 2016-02-10 | 南京感控通化工产品经营部 | High-pressure syringe piston butt joint device with jaws |
| CN205181927U (en) * | 2015-11-13 | 2016-04-27 | 南京感控通化工产品经营部 | High -pressure syringe's cylinder plunger device |
| CN107126602A (en) * | 2017-06-02 | 2017-09-05 | 南京感控通化工产品经营部 | The flange plate turning device fixed for syringe |
| US20180008780A1 (en) * | 2012-09-28 | 2018-01-11 | Bayer Healthcare Llc | Quick release plunger |
| CN109395210A (en) * | 2017-08-18 | 2019-03-01 | 南京感控通化工产品经营部 | A kind of pusher structure suitable for syringe |
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2019
- 2019-06-25 CN CN201910551870.0A patent/CN110604844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360525A (en) * | 2006-11-22 | 2009-02-04 | 马林克罗特公司 | Universal adapter for a syringe plunger |
| CN101743025A (en) * | 2007-06-04 | 2010-06-16 | 贝克顿·迪金森公司 | Stopper and plunger rod for a pre-filled syringe |
| US20180008780A1 (en) * | 2012-09-28 | 2018-01-11 | Bayer Healthcare Llc | Quick release plunger |
| CN105311712A (en) * | 2015-11-13 | 2016-02-10 | 南京感控通化工产品经营部 | High-pressure syringe piston butt joint device with jaws |
| CN205181927U (en) * | 2015-11-13 | 2016-04-27 | 南京感控通化工产品经营部 | High -pressure syringe's cylinder plunger device |
| CN107126602A (en) * | 2017-06-02 | 2017-09-05 | 南京感控通化工产品经营部 | The flange plate turning device fixed for syringe |
| CN109395210A (en) * | 2017-08-18 | 2019-03-01 | 南京感控通化工产品经营部 | A kind of pusher structure suitable for syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110604844B (en) | 2022-06-03 |
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Effective date of registration: 20210326 Address after: 210029 Block A, 8th Floor, 301 Hanzhongmen Street, Gulou District, Nanjing City, Jiangsu Province Applicant after: Nanjing Jusha Display Technology Co.,Ltd. Applicant after: NANJING JUSHA MEDICAL TECHNOLOGY Co.,Ltd. Address before: 210003 No.5, Hongmiao Lane 1, Fujian Road, Gulou District, Nanjing City, Jiangsu Province Applicant before: NANJING GANKONGTONG CHEMICAL PRODUCT OPERATION PORTION |
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