CN114917449B - Adjustable-dosage local anesthesia equipment for anesthesia department - Google Patents
Adjustable-dosage local anesthesia equipment for anesthesia department Download PDFInfo
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- CN114917449B CN114917449B CN202210586848.1A CN202210586848A CN114917449B CN 114917449 B CN114917449 B CN 114917449B CN 202210586848 A CN202210586848 A CN 202210586848A CN 114917449 B CN114917449 B CN 114917449B
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- Prior art keywords
- needle cylinder
- wall
- inner cavity
- extrusion
- cavity
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- 206010002091 Anaesthesia Diseases 0.000 title claims abstract description 23
- 230000037005 anaesthesia Effects 0.000 title claims abstract description 23
- 238000002690 local anesthesia Methods 0.000 title claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000003444 anaesthetic effect Effects 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 210000003811 finger Anatomy 0.000 claims description 32
- 238000012856 packing Methods 0.000 claims description 10
- 210000003813 thumb Anatomy 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000003589 local anesthetic agent Substances 0.000 claims description 5
- 239000003193 general anesthetic agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000003533 narcotic effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- A61M19/00—Local anaesthesia; Hypothermia
-
- 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
- A61M5/315—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
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
- A61M5/31555—Mechanically operated dose setting member by purely axial movement of dose setting member, e.g. during setting or filling of a syringe
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
- A61M5/31556—Accuracy improving means
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/048—Anaesthetics
Landscapes
- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a local anesthesia device with adjustable dosage for anesthesia department, which comprises a needle cylinder, wherein a threaded column is arranged on the inner cavity wall of the needle cylinder in a threaded manner and penetrated by an extrusion piece, a liquid containing cavity is formed between the right end of the extrusion piece and the inner cavity wall of the needle cylinder, a containing cavity is arranged in the inner cavity of the threaded column, the containing cavity comprises a cylindrical cavity and a rectangular chute, an elastic reset piece is arranged in the cylindrical cavity, and the elastic reset piece is sleeved on the extrusion piece. According to the local anesthesia equipment with adjustable dosage for anesthesia, the volume of the liquid containing cavity can be changed by rotating the extrusion piece, so that the sucking quantity of anesthetic is changed, the extrusion rod can drive the elastic sealing head to move in the needle cylinder under the elastic action of the reset spring, so that the anesthetic is sucked into the needle cylinder, and the triangular reinforcing block is arranged on the finger supporting block, so that the structural strength of the finger supporting block can be enhanced.
Description
Technical Field
The invention relates to the field of anesthesia equipment, in particular to local anesthesia equipment with adjustable dosage for anesthesia department.
Background
When the prior anesthesia department carries out anesthesia on a patient, a certain amount of anesthetic is generally sucked by a needle cylinder to carry out anesthesia on the patient, when the patient needs to carry out the quantitative anesthesia everywhere, the patient needs to look at the graduations on the needle cylinder to suck when the pull rod is manually pulled to suck the anesthetic, the manual operation is more elaborate, the deviation is easy to cause, and the measured anesthetic dosage is different, so that the problem is solved by the local anesthesia equipment with adjustable dosage for the anesthesia department.
Disclosure of Invention
The invention mainly aims to provide a local anesthesia device with adjustable dosage for anesthesia department, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a dose adjustable local anesthesia equipment for department of anesthesia, includes the cylinder, be equipped with the scale on the cylinder, the output of cylinder is connected with the syringe needle, install the screw thread post on the inner chamber wall of cylinder just the screw thread post is run through by the extrusion piece, form between the inner chamber wall of right-hand member and the cylinder of extrusion piece and hold the liquid chamber, the inner chamber of screw thread post is equipped with and holds the chamber, it includes cylinder die cavity and rectangle spout to hold the chamber, install the elasticity piece that resets in the cylinder die cavity, the elasticity piece that resets cup joints on the extrusion piece, extrusion piece part slides and sets up the inner chamber that holds the chamber.
Preferably, the extrusion piece comprises an extrusion rod, a pressing block is fixedly contacted with the end head of the extrusion rod positioned at the outer end of the side of the needle cylinder, an elastic sealing head is arranged at the end head of the extrusion rod positioned in the inner cavity of the needle cylinder, the outer wall of the elastic sealing head is abutted against the inner cavity wall of the needle cylinder, and a sliding block is fixedly arranged on the outer wall of the needle cylinder and is positioned in the inner cavity of the rectangular sliding groove and is in sliding connection with the sliding block.
Preferably, the method is characterized in that: the junction at extrusion pole and screw thread post both ends all is equipped with waterproof packing ring and two sets of waterproof packing rings are all fixed cup joint on the extrusion pole, two sets of the outer wall of waterproof packing ring all is inconsistent with the inner chamber wall of screw thread post.
Preferably, the annular outer wall of the pressing block is uniformly provided with a plurality of groups of friction convex strips at equal intervals, and the end surface of the pressing block, which is far away from the extrusion rod, is fixed with an elastic buffer pad through an adhesive.
Preferably, the elastic reset piece comprises two groups of sliding rings and a group of reset springs, two ends of each reset spring are fixedly connected with one group of sliding rings, the two groups of sliding rings are located in the cylindrical cavity, the left end of each sliding ring is in contact with the inner cavity wall of the cylindrical cavity, and the right end of each sliding ring is in contact with the end face of the sliding block.
Preferably, an inner thread section is arranged on the inner cavity wall of the needle cylinder and is in threaded connection with an outer thread arranged on the outer wall of the threaded column, and an elastic fastening washer is fixed on the inner wall of the inner thread section of the needle cylinder through an adhesive.
Preferably, two groups of finger support blocks are symmetrically fixed on the outer wall of the needle cylinder, triangular reinforcing blocks are arranged at the right ends of the two groups of finger support blocks, two ends of each triangular reinforcing block are fixedly connected with the finger support blocks and the outer wall of the needle cylinder respectively, and anti-slip raised strips are uniformly and equidistantly arranged at one ends of the two groups of finger support blocks, which are opposite to the triangular reinforcing blocks.
A method of operating a local anesthesia apparatus for anesthesia, the method comprising the steps of;
adjustment of anesthetic intake
One hand holds the needle cylinder to keep the needle cylinder still, the other hand holds the outer wall of the pressing block with fingers and rotates the pressing block, the pressing block drives the extrusion rod to rotate, the extrusion rod drives the threaded column to rotate in the inner cavity of the needle cylinder through the sliding block arranged on the extrusion rod, the extrusion rod can drive the elastic sealing head to do transverse linear motion, the volume of the solution cavity can be changed according to the scale arranged on the needle cylinder, and accordingly the anesthetic suction amount can be adjusted;
inhalation of narcotic doses
The index finger and the middle finger are respectively contacted with one ends of the two groups of finger supporting blocks provided with anti-slip convex strips, the thumb of the finger supporting blocks is contacted with the outer ends of the pressing blocks and presses the pressing blocks, so that the pressing is stopped when the elastic sealing head is in contact with the inner cavity wall of the needle cylinder, the needle head is placed in an anesthetic agent, the thumb is slowly loosened, the elastic force of the reset spring acts on the extrusion rod to drive the elastic sealing head to move backwards, and the agent is quantitatively sucked into the solution cavity.
Compared with the prior art, the invention has the following beneficial effects:
1. the device is provided with the elastic reset piece, the threaded column and the extrusion piece, and the volume of the liquid containing cavity can be changed by rotating the extrusion piece, so that the sucking quantity of anesthetic is changed, the extrusion rod can drive the elastic sealing head to move in the needle cylinder through the elastic action of the reset spring of the elastic reset piece, and the anesthetic is sucked into the needle cylinder.
2. The triangular reinforcing block is arranged on the finger supporting block, so that the structural strength of the finger supporting block can be enhanced, and damage caused by overlarge pressure can be prevented.
Drawings
FIG. 1 is a schematic view of the overall structure of a local anesthesia apparatus with adjustable dose for anesthesia department according to the present invention;
FIG. 2 is a schematic view of the connection of a threaded post and extrusion of a dose adjustable local anesthetic device for use in anesthesia in accordance with the present invention;
FIG. 3 is a schematic view showing the structure of a threaded column of a local anesthesia apparatus with adjustable dose for anesthesia department according to the present invention;
FIG. 4 is a schematic view of the elastic restoring member of the local anesthesia apparatus with adjustable dose for anesthesia department according to the present invention;
fig. 5 is a schematic sectional elevation view of a syringe of a local anesthesia apparatus with adjustable dose for anesthesia department.
In the figure: 1. a needle cylinder; 2. a needle; 3. a finger support block; 4. triangular reinforcing blocks; 5. an extrusion; 51. an extrusion rod; 52. pressing the blocks; 53. an elastic sealing head; 54. a slide block; 6. a threaded column; 7. a cylindrical cavity; 8. an elastic reset piece; 81. a slip ring; 82. a return spring; 9. rectangular sliding grooves; 10. and (5) elastically fastening the gasket.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in figures 1-5, the local anesthesia equipment with adjustable dosage for anesthesia department comprises a needle cylinder 1, scales are arranged on the needle cylinder 1, the output end of the needle cylinder 1 is connected with a needle head 2, a threaded column 6 is arranged on the inner cavity wall of the needle cylinder 1 in a threaded manner and is penetrated by an extrusion piece 5, a liquid containing cavity is formed between the right end of the extrusion piece 5 and the inner cavity wall of the needle cylinder 1, an accommodating cavity is formed in the inner cavity of the threaded column 6 and comprises a cylindrical cavity 7 and a rectangular chute 9, an elastic reset piece 8 is arranged in the cylindrical cavity 7, the elastic reset piece 8 is sleeved on the extrusion piece 5, and the extrusion piece 5 is arranged in the inner cavity of the accommodating cavity in a sliding manner.
The extrusion piece 5 comprises an extrusion rod 51, a pressing block 52 is fixedly touched at the end head of the side outer end of the extrusion rod 51, which is positioned on the needle cylinder 1, an elastic sealing head 53 is installed at the end head of the extrusion rod 51, which is positioned on the inner cavity of the needle cylinder 1, the outer wall of the elastic sealing head 53 is in contact with the inner cavity wall of the needle cylinder 1, a sliding block 54 is fixed on the outer wall of the needle cylinder 1, the sliding block 54 is positioned in the inner cavity of the rectangular sliding groove 9 and is in sliding connection with the inner cavity, and the anesthetic agent in the liquid containing cavity can be extruded out of the liquid containing cavity by pressing the extrusion rod 51 to enable the elastic sealing head 53 to move in the needle cylinder 1.
The junction at extrusion pole 51 and screw thread post 6 both ends all is equipped with waterproof packing ring and two sets of waterproof packing rings are all fixed cup joint on extrusion pole 51, and the outer wall of two sets of waterproof packing rings all is inconsistent with the inner chamber wall of screw thread post 6, and the setting of its waterproof packing ring can prevent that liquid from getting into the holding intracavity of screw thread post 6 from causing the influence to the elasticity of elastic restoring element 8.
The annular outer wall of the pressing block 52 is provided with a plurality of groups of friction convex strips at equal intervals, the action of friction force between the pressing block 52 and hands can be increased, the pressing block 52 can be conveniently rotated, an elastic buffer pad is fixed on the end face of the pressing block 52 far away from the pressing rod 51 through an adhesive, the pressure action between the thumb and the pressing block 52 can be buffered, and the pressing comfort level is improved.
The elastic reset piece 8 comprises two groups of sliding rings 81 and one group of reset springs 82, two ends of each reset spring 82 are fixedly connected with one group of sliding rings 81, the two groups of sliding rings 81 are located in the cylindrical cavity 7, the left end of the left sliding ring 81 is abutted against the inner cavity wall of the cylindrical cavity 7, the right end of the right sliding ring 81 is abutted against the end face of the sliding block 54, and the elastic sealing head 53 can be enabled to move under the elastic action of the reset springs 82, so that anesthetic agents are automatically sucked into the needle cylinder 1.
An inner thread section is arranged on the inner cavity wall of the needle cylinder 1 and is in threaded connection with an outer thread arranged on the outer wall of the threaded column 6, an elastic fastening gasket 10 is fixed on the inner wall of the inner thread section of the needle cylinder 1 through an adhesive, and the elastic fastening gasket 10 has a certain fixing effect on the threaded column 6 and can prevent the threaded column 6 from autorotating.
The outer wall of the needle cylinder 1 is symmetrically fixed with two groups of finger supporting blocks 3, the right ends of the two groups of finger supporting blocks 3 are respectively provided with a triangular reinforcing block 4, two ends of the triangular reinforcing block 4 are respectively fixedly connected with the finger supporting blocks 3 and the outer wall of the needle cylinder 1, anti-skidding convex strips are uniformly and equidistantly arranged at one ends of the two groups of finger supporting blocks 3, which are opposite to the triangular reinforcing blocks 4, the triangular reinforcing blocks 4 are arranged to strengthen the structural strength of the finger supporting blocks 3 and prevent the finger supporting blocks from being damaged due to overlarge pressure, and the anti-skidding convex strip shells arranged on the finger supporting blocks 3 increase the friction force between hands to play a role of anti-skidding.
The operation steps of the local anesthesia equipment with adjustable dosage for anesthesia department are as follows;
adjustment of anesthetic intake
One hand holds the needle cylinder 1 to keep the needle cylinder stationary, the other hand holds the outer wall of the pressing block 52 with fingers and rotates the pressing block 52, the pressing block 52 drives the extrusion rod 51 to rotate, the extrusion rod 51 drives the threaded column 6 to rotate in the inner cavity of the needle cylinder 1 through the sliding block 54 arranged on the extrusion rod 51, the extrusion rod 51 can drive the elastic sealing head 53 to do transverse linear motion, the volume of the solution cavity can be changed according to the scale arranged on the needle cylinder 1, and accordingly the anesthetic suction amount can be adjusted;
inhalation of narcotic doses
The index finger and the middle finger are respectively contacted with one ends of the two groups of finger supporting blocks 3 provided with anti-slip convex strips, the thumb of the finger supporting blocks is contacted with the outer ends of the pressing blocks 52 and presses the pressing blocks 52, so that the pressing is stopped when the elastic sealing head 53 is in contact with the inner cavity wall of the needle cylinder 1, the needle head 2 is placed in anesthetic, the thumb is slowly loosened, and the extrusion rod 51 can drive the elastic sealing head 53 to move backwards under the elastic action of the reset spring 82, so that the anesthetic is quantitatively sucked into the solution cavity.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a local anesthesia equipment of adjustable dose for department of anesthesia, includes cylinder (1), be equipped with the scale on cylinder (1), the output of cylinder (1) is connected with syringe needle (2), its characterized in that: the novel needle cylinder is characterized in that a threaded column (6) is arranged on the inner cavity wall of the needle cylinder (1) in a threaded manner, the threaded column (6) is penetrated by an extrusion piece (5), a liquid containing cavity is formed between the right end of the extrusion piece (5) and the inner cavity wall of the needle cylinder (1), an accommodating cavity is formed in the inner cavity of the threaded column (6), the accommodating cavity comprises a cylindrical cavity (7) and a rectangular chute (9), an elastic reset piece (8) is arranged in the cylindrical cavity (7), the elastic reset piece (8) is sleeved on the extrusion piece (5), and the extrusion piece (5) is partially arranged in the inner cavity of the accommodating cavity in a sliding manner; the extrusion part (5) comprises an extrusion rod (51), a pressing block (52) is fixedly contacted with the end head of the lateral outer end of the extrusion rod (51) positioned on the needle cylinder (1), an elastic sealing head (53) is arranged at the end head of the extrusion rod (51) positioned on the inner cavity of the needle cylinder (1), the outer wall of the elastic sealing head (53) is abutted against the inner cavity wall of the needle cylinder (1), a sliding block (54) is fixedly arranged on the outer wall of the needle cylinder (1), and the sliding block (54) is positioned in the inner cavity of the rectangular sliding groove (9) and is in sliding connection with the inner cavity of the rectangular sliding groove; the elastic reset piece (8) comprises two groups of sliding rings (81) and a group of reset springs (82), two ends of each reset spring (82) are fixedly connected with one group of sliding rings (81), the two groups of sliding rings (81) are located in the cylindrical cavity (7), the left end of each sliding ring (81) is in contact with the inner cavity wall of the cylindrical cavity (7), and the right end of each sliding ring (81) is in contact with the end face of the sliding block (54).
2. A dose adjustable local anesthetic device as claimed in claim 1, wherein: the junction at extrusion pole (51) and screw thread post (6) both ends all is equipped with waterproof packing ring and two sets of waterproof packing rings are all fixed cup joint on extrusion pole (51), two sets of the outer wall of waterproof packing ring all is inconsistent with the inner chamber wall of screw thread post (6).
3. A dose adjustable local anesthetic device as claimed in claim 1, wherein: a plurality of groups of friction convex strips are uniformly and equidistantly arranged on the annular outer wall of the pressing block (52), and an elastic buffer cushion is fixed on the end face, far away from the pressing rod (51), of the pressing block (52) through an adhesive.
4. A dose adjustable local anesthetic device as claimed in claim 1, wherein: an inner thread section is arranged on the inner cavity wall of the needle cylinder (1) and is in threaded connection with an outer thread arranged on the outer wall of the threaded column (6), and an elastic fastening gasket (10) is fixed on the inner wall of the inner thread section of the needle cylinder (1) through an adhesive.
5. A dose adjustable local anesthetic device as claimed in claim 1, wherein: the novel needle cylinder is characterized in that two groups of finger support blocks (3) are symmetrically fixed on the outer wall of the needle cylinder (1), triangular reinforcing blocks (4) are arranged at the right ends of the two groups of finger support blocks (3), two ends of each triangular reinforcing block (4) are fixedly connected with the finger support blocks (3) and the outer wall of the needle cylinder (1) respectively, and anti-slip convex strips are uniformly and equidistantly arranged at one ends of the finger support blocks (3) opposite to the triangular reinforcing blocks (4).
6. The method of operating a local anesthesia apparatus with adjustable dose for anesthesia as set forth in claim 1, wherein: the steps are as follows;
adjustment of anesthetic intake
One hand holds the needle cylinder (1) to keep the needle cylinder stationary, the other hand holds the outer wall of the pressing block (52) with fingers and rotates the pressing block (52), the pressing block (52) drives the extrusion rod (51) to rotate, the extrusion rod (51) drives the threaded column (6) to rotate in the inner cavity of the needle cylinder (1) through the sliding block (54) arranged on the extrusion rod, the extrusion rod (51) can drive the elastic sealing head (53) to do transverse linear motion, the volume of the solution cavity can be changed according to the scale arranged on the needle cylinder (1), and accordingly the anesthetic suction amount can be adjusted;
inhalation of narcotic doses
The index finger and the middle finger are respectively contacted with one ends of the two groups of finger supporting blocks (3) provided with anti-slip raised strips, the thumb of the anti-slip raised strips is contacted with the outer ends of the pressing blocks (52) and presses the pressing blocks (52), so that the pressing is stopped when the elastic sealing head (53) is in contact with the inner cavity wall of the needle cylinder (1), the needle head (2) is placed in an anesthetic agent, the thumb is slowly loosened, and the extrusion rod (51) can drive the elastic sealing head (53) to move backwards under the elastic action of the reset spring (82), so that the agent is quantitatively sucked into the solution cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586848.1A CN114917449B (en) | 2022-05-26 | 2022-05-26 | Adjustable-dosage local anesthesia equipment for anesthesia department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586848.1A CN114917449B (en) | 2022-05-26 | 2022-05-26 | Adjustable-dosage local anesthesia equipment for anesthesia department |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114917449A CN114917449A (en) | 2022-08-19 |
| CN114917449B true CN114917449B (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210586848.1A Active CN114917449B (en) | 2022-05-26 | 2022-05-26 | Adjustable-dosage local anesthesia equipment for anesthesia department |
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| CN (1) | CN114917449B (en) |
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| CN103055381A (en) * | 2004-06-23 | 2013-04-24 | 艾伯维生物技术有限责任公司 | Injection device |
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