CN111991650A - In-situ gel injector - Google Patents
In-situ gel injector Download PDFInfo
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- CN111991650A CN111991650A CN202010983145.3A CN202010983145A CN111991650A CN 111991650 A CN111991650 A CN 111991650A CN 202010983145 A CN202010983145 A CN 202010983145A CN 111991650 A CN111991650 A CN 111991650A
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- flow
- situ gel
- needle cylinder
- piston
- rod
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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
- A61M5/178—Syringes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
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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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- 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
-
- 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
- A61M5/3129—Syringe barrels
- A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
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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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3145—Filters incorporated in 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
- A61M5/315—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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- 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
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/329—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle shaft
- A61M5/3291—Shafts with additional lateral openings
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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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
-
- 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
- A61M5/44—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 having means for cooling or heating the devices or media
- A61M5/445—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 having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
Abstract
The invention discloses an in-situ gel injector which comprises a needle cylinder, wherein a piston and a push rod are arranged inside the needle cylinder, the piston is connected with the push rod, one end, far away from the piston, of the push rod is connected with a bottom rod, the bottom of the needle cylinder is connected with a support rod, a flow guide device is connected above the needle cylinder, the flow guide device is connected with an adapter, a needle head is connected above the adapter, heating devices are arranged on two sides of the flow guide device, each heating device comprises a micro screw rod, and two guide sleeves are sleeved on the micro screw rod. When the device is used, bubbles in the needle cylinder can be conveniently discharged by arranging the flow guide device, the piston is driven to move by pushing the push rod, liquid can enter the adapter only after gas in the needle cylinder is completely discharged, and the heating device is arranged to conveniently heat the gel in situ during injection, so that the gel cannot be bonded together along with the change of temperature.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an in-situ gel injector.
Background
The injector is a common medical apparatus and consists of a syringe with a small hole at the front end and a matched piston core rod. Syringes are used to inject small amounts of liquid or other substances into or out of areas that are otherwise inaccessible. When the core rod is pulled out, liquid or gas is sucked from the small hole at the front end of the needle cylinder, and when the core rod is pushed in, the liquid or gas is extruded. This process of drawing or injecting gas or liquid with a syringe and needle is called injection.
The medicine and the gel material can be prepared into uniform and suspended thick latex liquid or semisolid gel. The gel has good histocompatibility, long retention time at administration position, and effects of storing medicine and preventing medicine from being affected by environment. According to different forming mechanisms, the in-situ gel can be divided into a temperature sensitive type, a pH sensitive type, an ion sensitive type and the like. The in-situ gel is used as a novel drug dosage form and widely applied to novel drug delivery systems such as slow release, controlled release, pulse release and the like, and can be applied to various routes of drug delivery such as skin, eyes, nasal cavities, oral cavities, vaginas, rectum and the like.
At present, a conventional syringe is adopted for injecting in-situ gel, the injection effect is poor, the medicine effect is influenced because the change of the temperature can cause the change of the state of the in-situ gel, the in-situ gel is generally slower than the injection of liquid medicines when being injected, namely the in-situ gel is possibly adhered together because of the temperature change in the injection process, and the general syringe is inconvenient to operate when being injected by self, so that the in-situ gel syringe is needed to be developed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an in-situ gel injector.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an in-situ gel injector, includes the cylinder, the inside of cylinder is provided with piston and push rod, just the piston with the push rod is connected, the push rod is kept away from the one end of piston is connected with the sill bar, the bottom of cylinder is connected with branch, just the top of cylinder is connected with the guiding device, the guiding device is connected with the adapter, the top of adapter is connected with the syringe needle, the both sides of guiding device are provided with heating device, heating device includes miniature screw rod, miniature screw rod cover is equipped with two guide pin bushings, and two the guide pin bushing all with cylinder fixed connection, just miniature screw rod threaded connection has the heating cabinet, the inside of heating cabinet is provided with heating plate and button cell, just miniature screw rod keeps away from one side of guiding device is connected with the knob.
As a still further scheme of the invention: the lower part of the heating box is connected with a guide rail in a sliding way, and the guide rail is fixedly connected with the upper surface of the needle cylinder.
As a still further scheme of the invention: the guiding device with the adapter passes through screw thread interconnect and both leakproofness are good, a plurality of aperture has been seted up to the side of syringe needle.
As a still further scheme of the invention: the anti-skidding type bed-pan is characterized in that an anti-skidding net is connected above the supporting rod, and a soft cushion is connected to one side, far away from the supporting rod, of the bottom rod.
As a still further scheme of the invention: the flow guide device comprises a flow guide cavity, wherein a flow blocking block is arranged in the flow guide cavity, two side plates are connected to two sides of the flow blocking block, a plurality of liquid inlets are formed in the side plates, grooves are formed in the inner wall of the flow guide cavity, a spring is fixedly connected to the inside of the flow blocking block, the spring is far away from one end of the flow blocking block and is connected with a flow guide plate, the flow guide plate is fixedly connected with the inner wall of the flow guide cavity, and a plurality of liquid outlets are formed in the flow guide plate.
As a still further scheme of the invention: and a filter screen is arranged above the guide plate.
As a still further scheme of the invention: and a sealing gasket is arranged between the side plate and the inner wall of the flow guide cavity and is in sliding connection with the side plate.
The invention has the beneficial effects that:
1. through the arrangement of the miniature screw rod and the knob, when the device is used, bubbles in the needle cylinder can be conveniently discharged through the arrangement of the flow guide device, the piston is driven to move through the push rod, after gas in the needle cylinder is thoroughly discharged, liquid can enter the inside of the adapter, the heating device is arranged, so that the liquid can be timely heated when in-situ gel is injected, the situation that the liquid cannot be bonded together along with the change of temperature is ensured, when injection is required, the miniature screw rod is simultaneously driven to rotate through the rotation of the knob, the heating box is driven to move to the flow guide device, meanwhile, the button battery provides electricity, the liquid is heated through the heating plate, the normal state of the in-situ gel is ensured, and the guide rail is arranged below the heating box, so that the heating box is driven to move when the miniature screw rod rotates;
2. by arranging the anti-slip net and the soft cushion, when the needle is used, the side surface of the needle head is provided with the plurality of small holes, so that the speed of extracting the medicine from the needle cylinder is convenient to increase, when the needle is used, the friction force between the fingers and the supporting rod is convenient to increase, the smooth operation of the medicine extracting process is favorably ensured, and the comfort of medical workers is convenient to increase by arranging the soft cushion;
3. through setting up inlet and water conservancy diversion chamber, during the use, be convenient for in time discharge with the inside gas of cylinder through setting up guiding device, when the cylinder is inside not to have the bubble, liquid promotes the choking piece under the thrust of push rod and piston and removes, in compression spring, liquid passes through the inlet and gets into, discharge through the liquid outlet simultaneously, be favorable to the secondary process to guarantee that the gas is discharged completely, in use, be convenient for carry out the timely filtration of impurity and other solids in the in-process of promoting through setting up the filter screen, guarantee the normal condition of normal position gel, in use, be convenient for carry out the inside leakproofness of device when the removal of liquid medicine through setting up sealed the pad between water conservancy diversion chamber and curb plate.
Drawings
FIG. 1 is a schematic structural view of an in situ gel injector as set forth in example 1;
FIG. 2 is a sectional view showing the side structure of a heating apparatus of the in-situ gel injector according to example 1;
FIG. 3 is a sectional view showing the entire side structure of a needle of the in situ gel syringe as set forth in example 1;
FIG. 4 is a sectional view of the entire side structure of a deflector of the in-situ gel injector according to example 2;
FIG. 5 is a schematic diagram of the gasket structure of the in-situ gel injector according to example 2.
In the figure: the device comprises a syringe 1, a heating device 2, a flow guide device 3, a needle 4, a piston 5, a push rod 6, a bottom rod 7, a support rod 9, an anti-slip net 10, a soft cushion 11, a 12-joint, a miniature screw 21, a guide sleeve 22, a knob 23, a heating box 24, a heating plate 25, a button battery 26, a guide rail 27, a flow guide cavity 31, a flow choking block 32, a spring 33, a liquid inlet 34, a groove 35, a flow guide plate 36, a liquid outlet 37, a filter screen 38 and a sealing gasket 39.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, an in-situ gel injector comprises a syringe 1, a piston 5 and a push rod 6 are arranged inside the syringe 1, the piston 5 is connected with the push rod 6, one end of the push rod 6, which is far away from the piston 5, is connected with a bottom rod 7, the bottom of the syringe 1 is connected with a support rod 9, a flow guide device 3 is connected above the syringe 1, the flow guide device 3 is connected with an adapter 12, a needle 4 is connected above the adapter 12, heating devices 2 are arranged on two sides of the flow guide device 3, each heating device 2 comprises a micro screw 21, the micro screw 21 is sleeved with two guide sleeves 22, the two guide sleeves 22 are both fixedly connected with the syringe 1, the micro screw 21 is in threaded connection with a heating box 24, a heating plate 25 and a button battery 26 are arranged inside the heating box 24, one side of the micro screw 21, which is far away from the flow guide device 3, is connected with a, drive piston 5 through promoting push rod 6 and remove, after the inside gas of cylinder is thoroughly discharged, liquid could enter into adapter 3's inside, be convenient for in time heat it when carrying out the injection of normal position gel through setting up heating device 2, guarantee that it can not bond together along with the change of temperature, when needs are injectd, drive miniature screw rod 21 through rotatory knob 23 simultaneously and rotate, it removes to flow device 3 to drive heating cabinet 24, provide the electric quantity through button cell 26 simultaneously, utilize heating plate 25 to heat liquid, guarantee the normal condition of normal position gel.
Wherein, the lower part of the heating box 24 is connected with a guide rail 27 in a sliding way, and the guide rail 27 is fixedly connected with the upper surface of the needle cylinder 1, when in use, the guide rail 27 is arranged below the heating box 24, so that the heating box 24 is driven to move when the micro screw 21 rotates.
Wherein, guiding device 3 and adapter 12 are through screw thread interconnect and both leakproofness are good, and a plurality of aperture has been seted up to the side of syringe needle 4, during the use, through seting up a plurality of aperture in the side of syringe needle 4, is convenient for promote the speed of extracting the medicine of cylinder 1.
Wherein, the top of branch 9 is connected with anti-skidding net 10, and the one side that branch 9 was kept away from to sill bar 7 is connected with cushion 11, during the use, is convenient for increase the frictional force between finger and the branch when using through setting up anti-skidding net 10, is favorable to guaranteeing that the process of extraction medicine is steady to be gone on, is convenient for increase medical personnel's travelling comfort through setting up cushion 11.
The working principle is as follows: when the device is used, bubbles in the needle cylinder can be conveniently discharged by arranging the flow guide device 3, the piston 5 is driven to move by pushing the push rod 6, after the gas in the needle cylinder is completely discharged, liquid can enter the inside of the adapter 3, the heating device 2 is arranged to heat the gel in situ in time during injection so as to ensure that the gel cannot be bonded together along with the change of temperature, when the injection is needed, the micro screw rod 21 is simultaneously driven to rotate by rotating the knob 23 so as to drive the heating box 24 to move to the flow guide device 3, meanwhile, the button battery 26 provides electricity, the liquid is heated by the heating sheet 25 so as to ensure the normal state of the gel in situ, when the device is used, the heating box 24 is conveniently driven to move when the micro screw rod 21 rotates by arranging the guide rail 27 below the heating box 24, and during the use, through seting up a plurality of aperture in the side of syringe needle 4, be convenient for promote the speed of extracting the medicine of cylinder 1, during the use, increase the frictional force between finger and the branch when using through setting up anti-skidding net 10, be favorable to guaranteeing that the process of extraction medicine is steady to be gone on, is convenient for increase medical personnel's travelling comfort through setting up cushion 11.
Example 2
Referring to fig. 4-5, in this embodiment, compared with embodiment 1, the flow guiding device 3 includes a flow guiding cavity 31, a flow blocking block 32 is disposed inside the flow guiding cavity 31, two sides of the flow blocking block 32 are connected with side plates, both the side plates are provided with a plurality of liquid inlets 34, and a groove 35 is formed in an inner wall of the flow guiding cavity 31, a spring 33 is fixedly connected inside the flow blocking block 32, and one end of the spring 33 away from the flow blocking block 32 is connected with a flow guiding plate 36, the flow guiding plate 36 is fixedly connected with an inner wall of the flow guiding cavity 31, the flow guiding plate 36 is provided with a plurality of liquid outlets 37, when in use, the flow guiding device 3 is disposed to facilitate timely discharge of gas inside the syringe 1, when no bubble exists inside the syringe, the liquid pushes the flow blocking block 32 to move under the thrust of the push rod 6 and the piston 5, when the spring 33, and simultaneously through the outlet port 37, which is advantageous for the re-process to ensure that the gas is completely discharged.
Wherein, the filter screen 38 is arranged above the guide plate 36, and when in use, impurities and other solids in the in-situ gel can be conveniently filtered in time in the pushing process by arranging the filter screen 38, so that the normal state of the in-situ gel is ensured.
Wherein, be provided with sealed 39 between the inner wall of curb plate and water conservancy diversion chamber 31, and sealed 39 and curb plate sliding connection of filling up, during the use, be convenient for when carrying out the removal of liquid medicine device inside leakproofness through set up sealed 39 between water conservancy diversion chamber 31 and curb plate.
The working principle is as follows: during the use, be convenient for with the timely discharge of the inside gas of cylinder 1 through setting up guiding device 3, when the cylinder is inside not to have the bubble, liquid promotes choked flow piece 32 under the thrust of push rod 6 and piston 5 and removes, in compression spring 33, liquid passes through inlet 34 and gets into, discharge through outlet 37 simultaneously, be favorable to the process once more to guarantee that the gas is discharged completely, in the use, be convenient for carry out the timely filtration of impurity and other solids in the in-situ gel that promotes through setting up filter screen 38, guarantee the normal condition of in-situ gel, in the use, be convenient for carry out the inside leakproofness of device when the removal of liquid medicine through setting up sealed pad 39 between guiding cavity 31 and curb plate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The in-situ gel injector comprises a needle cylinder (1) and is characterized in that a piston (5) and a push rod (6) are arranged inside the needle cylinder (1), the piston (5) is connected with the push rod (6), one end of the push rod (6) far away from the piston (5) is connected with a bottom rod (7), the bottom of the needle cylinder (1) is connected with a support rod (9), a flow guide device (3) is connected above the needle cylinder (1), the flow guide device (3) is connected with an adapter (12), a needle head (4) is connected above the adapter (12), heating devices (2) are arranged on two sides of the flow guide device (3), each heating device (2) comprises a micro screw rod (21), two guide sleeves (22) are sleeved on the micro screw rod (21), and the guide sleeves (22) are fixedly connected with the needle cylinder (1), and the miniature screw rod (21) is in threaded connection with a heating box (24), a heating sheet (25) and a button battery (26) are arranged inside the heating box (24), and one side of the miniature screw rod (21) far away from the flow guide device (3) is connected with a knob (23).
2. An in situ gel injector as claimed in claim 1 wherein a guide (27) is slidably connected to the underside of the heating chamber (24) and the guide (27) is fixedly connected to the upper surface of the syringe (1).
3. The in situ gel syringe as claimed in claim 1, wherein the diversion device (3) and the adapter (12) are connected with each other by screw threads and have good sealing performance, and a plurality of small holes are formed in the side surface of the needle (4).
4. An in situ gel injector as claimed in claim 1 characterised in that a non-slip mesh (10) is attached to the upper side of the strut (9) and a soft pad (11) is attached to the side of the base bar (7) remote from the strut (9).
5. The in-situ gel injector according to claim 1, wherein the flow guiding device (3) comprises a flow guiding cavity (31), a flow blocking block (32) is arranged inside the flow guiding cavity (31), two sides of the flow blocking block (32) are connected with side plates, a plurality of liquid inlets (34) are formed in each of the two side plates, a groove (35) is formed in the inner wall of the flow guiding cavity (31), a spring (33) is fixedly connected inside the flow blocking block (32), a flow guiding plate (36) is connected to one end, far away from the flow blocking block (32), of the spring (33), the flow guiding plate (36) is fixedly connected with the inner wall of the flow guiding cavity (31), and a plurality of liquid outlets (37) are formed in the flow guiding plate (36).
6. An in situ gel injector as claimed in claim 5 wherein a filter screen (38) is provided above the deflector (36).
7. The in-situ gel injector as claimed in claim 5, wherein a sealing gasket (39) is arranged between the side plate and the inner wall of the diversion cavity (31), and the sealing gasket (39) is connected with the side plate in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983145.3A CN111991650A (en) | 2020-09-17 | 2020-09-17 | In-situ gel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983145.3A CN111991650A (en) | 2020-09-17 | 2020-09-17 | In-situ gel injector |
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|---|---|
| CN111991650A true CN111991650A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010983145.3A Pending CN111991650A (en) | 2020-09-17 | 2020-09-17 | In-situ gel injector |
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