CN112494756A - Anesthesia injection device - Google Patents

Anesthesia injection device Download PDF

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Publication number
CN112494756A
CN112494756A CN202011173204.7A CN202011173204A CN112494756A CN 112494756 A CN112494756 A CN 112494756A CN 202011173204 A CN202011173204 A CN 202011173204A CN 112494756 A CN112494756 A CN 112494756A
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CN
China
Prior art keywords
piston
cylinder
needle
push rod
sealing cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011173204.7A
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Chinese (zh)
Other versions
CN112494756B (en
Inventor
江伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yongchuan Hospital of Chongqing Medical University
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Yongchuan Hospital of Chongqing Medical University
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Priority to CN202011173204.7A priority Critical patent/CN112494756B/en
Publication of CN112494756A publication Critical patent/CN112494756A/en
Application granted granted Critical
Publication of CN112494756B publication Critical patent/CN112494756B/en
Expired - Fee Related legal-status Critical Current
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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
    • 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
    • A61M5/3129—Syringe barrels
    • A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe 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
    • A61M5/31511—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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31566—Means improving security or handling thereof
    • 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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger 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
    • A61M2005/3125—Details specific display means, e.g. to indicate dose setting
    • 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
    • A61M2005/3152—Piston or piston-rod constructions, e.g. connection of piston with piston-rod including gearings to multiply or attenuate the piston displacing force

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 belongs to the technical field of medical instruments, and relates to an anesthesia injection device which comprises an assistor and an injector, wherein the assistor comprises an installation cylinder and a sealing cover, a first chute is formed in the installation cylinder, an external thread is formed in the installation cylinder, the sealing cover is installed on the installation cylinder, the injector comprises a needle cylinder, a pulling plate is integrally formed on the needle cylinder, the needle cylinder penetrates through the installation cylinder, the pulling plate is positioned in the first chute, a first piston is fixedly installed at the bottom end inside the needle cylinder, a second piston is installed in the needle cylinder, a push rod is fixedly installed on the second piston, the end part of the push rod is detachably connected with the sealing cover, an injection needle is fixedly installed on the push rod, the injection needle penetrates through the second piston, a communication hole is formed in one end of the second piston, a control ring is screwed on the installation cylinder, a scale groove is formed in the outer wall of the installation cylinder, capacity scales are arranged in, and the problem that the consistent injection amount is difficult to maintain.

Description

Anesthesia injection device
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an anesthetic injection device.
Background
The traditional injector mainly performs quantitative injection according to the scales on the cylinder wall, and the inaccurate control of the injection dosage can bring serious consequences due to the sight line and the hand speed of an operator. For example, local infiltration anesthesia commonly used in surgery often requires a plurality of quantitative injections, which are sequentially penetrated into the skin along one end of a surgical incision line to form a skin-hump band, and then local anesthetic is injected into the subcutaneous tissue through the skin-hump, so that the skin and the subcutaneous tissue can be cut. When the injector in the prior art injects the anesthetic, the medicine in the injector is pressed out by pressing the push rod with the thumb, so that the injection speed is not controlled conveniently due to the fact that force is not applied conveniently; meanwhile, the injection amount can not be limited, if the incision is long and the tissue to be operated is deep, the situation that the dosage injected each time is inconsistent and the dosage injected front and back is not uniform is easy to occur, the anesthesia effect is influenced, and the operation is not facilitated.
Disclosure of Invention
Based on the problems mentioned in the background art, the invention provides an anesthetic injection device, which is used for solving the problems that the injection speed of the existing injector is not convenient to control during injection, and the injection quantity is difficult to keep consistent each time.
The technical scheme adopted by the invention is as follows:
an anesthetic injection device comprises an assistor and an injector, wherein the assistor comprises an installation cylinder and a sealing cover, a first chute is formed in the installation cylinder, external threads are formed in the installation cylinder, the sealing cover is installed on the installation cylinder, the injector comprises a needle cylinder, a pulling plate is integrally formed on the needle cylinder, the needle cylinder penetrates through the installation cylinder, the pulling plate is located in the first chute, a first piston is fixedly installed at the bottom end inside the needle cylinder, a preformed hole is formed in one end, close to the first piston, of the needle cylinder and the installation cylinder, a second piston is installed in the needle cylinder, the second piston is located in the needle cylinder, a push rod is fixedly installed on the second piston, the end portion of the push rod is detachably connected with the sealing cover, an injection needle is fixedly installed on the push rod, the injection needle penetrates through the second piston and is provided with a communicating hole at one end of the second piston, the mounting cylinder is connected with a control ring in a threaded mode, the outer wall of the mounting cylinder is provided with a scale groove, and capacity scales are arranged in the scale groove.
On the basis of the technical scheme, the invention also improves the following steps:
furthermore, an observation groove is formed in the mounting cylinder. The state of the syringe can be directly observed through the observation groove, so that better use is facilitated.
Furthermore, a positioning tube matched with the injection needle is fixedly installed on the first piston, and an avoiding groove corresponding to the positioning tube is formed in the second piston. The injection needle is guided by the positioning tube, so that the injection needle is prevented from deflecting when penetrating into the first piston, and the injection needle is prevented from being damaged to influence use.
Furthermore, a push plate is integrally formed at one end of the push rod, and the second piston is sleeved on the push plate. The second piston can be detached, and meanwhile the push rod can drive the second piston to normally move through the push plate.
Furthermore, a clamping block is installed at the other end of the push rod, a clamping seat matched with the clamping block is installed in the sealing cover, and the clamping block is clamped in the clamping seat. The push rod is connected with the clamping seat through the clamping block, so that the push rod and the sealing cover can be conveniently and quickly detached and connected, and the injector can be conveniently replaced.
Furthermore, the inside internal thread that is equipped with of closing cap, the closing cap spiro union is on the installation section of thick bamboo, the non-slip line has been seted up to the closing cap outer wall. The frictional resistance of the surface of the closure is increased by the non-slip pattern so that the closure can be rotated more easily.
Furthermore, the outer wall of the control ring is provided with anti-skid projections, and the length size of the anti-skid projections is smaller than that of the control ring. The friction resistance on the surface of the control ring is increased through the anti-skid protrusions, so that the control ring can be better adjusted in a rotating mode; meanwhile, the length dimension of the anti-skid protrusions is smaller than that of the control ring, so that the edge of the adjusting ring is free of shielding, and interference of the anti-skid protrusions when scales are observed is avoided.
Further, the pulling plate is in an arc hook shape. When in use, the pulling plate is convenient for being hooked by fingers, and the operation is convenient.
The invention has the beneficial effects that:
1. the syringe is installed in the assistor, and the length of assistor is fixed, and the second piston is in fixed state, and the cylinder removes and drives first piston and remove and extrude the interior medicament of cylinder through the intercommunicating pore by the syringe needle, is different from traditional syringe, and the syringe that this application recorded withstands the closing cap on the installation section of thick bamboo when using drives the cylinder and removes through finger pulling arm-tie, can be better exert oneself hard，Thereby better controlling the injection speed and facilitating the use;
2. the stroke of the needle cylinder is controlled by adjusting the position of the control ring, so that the purpose of quantitative injection can be achieved, the structure is simple, and the use is convenient.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic view of an anesthetic injection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic longitudinal sectional view of an anesthetic injection apparatus according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
FIG. 5 is an enlarged view of the structure at C in FIG. 3;
FIG. 6 is a schematic structural view of a part of the components of the auxiliary device in the embodiment of the present invention;
the main element symbols are as follows:
the mounting cylinder 1, the first sliding groove 11, the preformed hole 12, the observation groove 13, the external thread 14, the scale groove 15, the control ring 16, the anti-skid protrusion 161, the sealing cover 17, the internal thread 171, the anti-skid thread 172, the clamping seat 173, the needle cylinder 2, the first piston 21, the positioning tube 211, the second piston 22, the avoiding groove 221, the push rod 23, the push plate 231, the clamping block 232, the shooting needle 25, the through hole 251 and the pull plate 26.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1 to 6, an anesthetic injection device comprises an assist device and an injector, the assist device comprises an installation cylinder 1 and a sealing cover 17, the installation cylinder 1 is provided with a first chute 11, the installation cylinder 1 is provided with an external thread 14, the sealing cover 17 is installed on the installation cylinder 1, the injector comprises a cylinder 2, the cylinder 2 is integrally formed with a pulling plate 26, the cylinder 2 penetrates through the installation cylinder 1, the pulling plate 26 is located in the first chute 11, a first piston 21 is fixedly installed at the bottom end inside the cylinder 2, one ends of the cylinder 2 and the installation cylinder 1, which are close to the first piston 21, are both provided with a preformed hole 12, the cylinder 2 is internally provided with a second piston 22, the second piston 22 is located in the cylinder 2, a push rod 23 is fixedly installed on the second piston 22, the end of the push rod 23 is detachably connected with the sealing cover 17, a push rod 25 is fixedly installed on the push rod 23, the injection needle 25 penetrates through the second piston 22, and a communication hole 251 is formed at, the mounting cylinder 1 is connected with a control ring 16 in a threaded mode, the outer wall of the mounting cylinder 1 is provided with a scale groove 15, and capacity scales are arranged in the scale groove 15.
Specifically, the mounting tube 1 is provided with an observation groove 13. The state of the syringe can be directly observed through the observation groove 13 for better use.
Specifically, a positioning tube 211 matched with the injection needle 25 is fixedly installed on the first piston 21, and an escape groove 221 corresponding to the positioning tube 211 is formed on the second piston 22. The guide tube 211 guides the injection needle 25 to prevent the injection needle 25 from deflecting when penetrating into the first piston 21, so that the injection needle 25 is damaged and used.
Specifically, one end of the push rod 23 is integrally formed with a push plate 231, and the second piston 22 is sleeved on the push plate 231. The second piston 22 can be detached, and the push rod 23 can drive the second piston 22 to normally move through the push plate 231.
Specifically, a clamping block 232 is installed at the other end of the push rod 23, a clamping seat 173 matched with the clamping block 232 is installed in the sealing cover 17, and the clamping block 232 is clamped in the clamping seat 173. The push rod 23 is connected with the clamping seat 173 through the clamping block 232, so that the push rod 23 and the sealing cover 17 can be conveniently and quickly detached and connected, and the injector can be conveniently replaced.
Specifically, the inner part of the cover 17 is provided with an internal thread 171, the cover 17 is screwed on the mounting barrel 1, and the outer wall of the cover 17 is provided with an anti-slip thread 172. The frictional resistance of the surface of the closure 17 is increased by the non-slip pattern 172 so that the closure 17 can be rotated more easily.
Specifically, the outer wall of the control ring 16 is provided with a stud 161, the length dimension of the stud 161 being smaller than the length dimension of the control ring 16. The frictional resistance of the surface of the control ring 16 is increased by the anti-slip protrusions 161 so that the control ring 16 can be better rotationally adjusted; meanwhile, the length dimension of the antiskid projections 161 is smaller than that of the control ring 16, so that the edge of the adjusting ring 16 is not shielded, and interference caused by the antiskid projections 161 when scales are observed is avoided.
Specifically, the pulling plate 26 is arc-shaped and hook-shaped. When in use, the pulling plate 26 is convenient to be hooked by fingers, and the operation is convenient.
In use, the injection needle 25 is inserted into the medicine bottle, and then the mounting barrel 1 is held to push the push plate 26 to separate the first piston 21 and the second piston 22, so that negative pressure is formed in the syringe 2 to suck the anesthetic into the syringe 2. When in injection, the palm is pressed against the sealing cover 17 on the mounting barrel 1, the pull plate 26 is pulled by fingers to drive the needle barrel 2 to move, the second piston 22 is in a fixed state under the action of the push rod 23, and the needle barrel 2 moves to drive the first piston 21 to move, so that the medicament in the needle barrel 2 is pressed out from the injection needle 25 through the communicating hole 251 for injection.
The anesthetic injection device provided by the present invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (8)

1. An anesthesia injection device, includes assistor and syringe, its characterized in that: the assistor comprises an installation cylinder (1) and a sealing cover (17), a first sliding groove (11) is formed in the installation cylinder (1), an external thread (14) is formed in the installation cylinder (1), the sealing cover (17) is installed on the installation cylinder (1), the injector comprises a needle cylinder (2), a pulling plate (26) is integrally formed on the needle cylinder (2), the needle cylinder (2) penetrates through the installation cylinder (1), the pulling plate (26) is located in the first sliding groove (11), a first piston (21) is fixedly installed at the bottom end inside the needle cylinder (2), a reserved hole (12) is formed in one end, close to the first piston (21), of the needle cylinder (2) and the installation cylinder (1), a second piston (22) is installed in the needle cylinder (2), the second piston (22) is located in the needle cylinder (2), and a push rod (23) is fixedly installed on the second piston (22), the tip and the closing cap (17) of push rod (23) can be dismantled and be connected, fixed mounting has syringe needle (25) on push rod (23), syringe needle (25) pass second piston (22) and syringe needle (25) have seted up intercommunicating pore (251) in second piston (22) one end, the spiro union has control ring (16) on installation section of thick bamboo (1), scale groove (15) have been seted up to installation section of thick bamboo (1) outer wall, be equipped with the capacity scale in scale groove (15).
2. The anesthetic injection apparatus of claim 1, wherein: an observation groove (13) is formed in the mounting cylinder (1).
3. The anesthetic injection apparatus of claim 2, wherein: the injection needle is characterized in that a positioning tube (211) matched with the injection needle (25) is fixedly installed on the first piston (21), and an avoiding groove (221) corresponding to the positioning tube (211) is formed in the second piston (22).
4. The anesthetic injection apparatus of claim 3, wherein: one end of the push rod (23) is integrally formed with a push plate (231), and the second piston (22) is sleeved on the push plate (231).
5. The anesthetic injection apparatus of claim 4, wherein: a clamping block (232) is installed at the other end of the push rod (23), a clamping seat (173) matched with the clamping block (232) is installed in the sealing cover (17), and the clamping block (232) is clamped in the clamping seat (173).
6. The anesthetic injection apparatus of claim 5, wherein: the anti-skidding type sealing structure is characterized in that internal threads (171) are arranged inside the sealing cover (17), the sealing cover (17) is in threaded connection with the mounting cylinder (1), and anti-skidding threads (172) are formed in the outer wall of the sealing cover (17).
7. The anesthetic injection apparatus of claim 6, wherein: the outer wall of the control ring (16) is provided with anti-skid protrusions (161), and the length size of the anti-skid protrusions (161) is smaller than that of the control ring (16).
8. The anesthetic injection apparatus of claim 7, wherein: the pulling plate (26) is in an arc hook shape.
CN202011173204.7A 2020-10-28 2020-10-28 Anesthesia injection device Expired - Fee Related CN112494756B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011173204.7A CN112494756B (en) 2020-10-28 2020-10-28 Anesthesia injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011173204.7A CN112494756B (en) 2020-10-28 2020-10-28 Anesthesia injection device

Publications (2)

Publication Number Publication Date
CN112494756A true CN112494756A (en) 2021-03-16
CN112494756B CN112494756B (en) 2022-06-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113304377A (en) * 2021-04-25 2021-08-27 山东大学齐鲁医院 Syringe for anesthesia
CN118490958A (en) * 2024-06-20 2024-08-16 徐州市中心医院 Local anesthesia drug delivery device for treating pain

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US6235001B1 (en) * 1998-05-18 2001-05-22 O'holloran Brian Surgical needle with hand-actuable lock mechanism
CN2577865Y (en) * 2002-10-30 2003-10-08 乐清市长城塑料医械厂 Safety disposable syringes
US20100185147A1 (en) * 2009-01-22 2010-07-22 Cho-Ying Chen Disposable safety syringe structure
CN103285453A (en) * 2013-06-05 2013-09-11 倪伟清 Needle isolation type disposable syringe
TW201735962A (en) * 2016-04-15 2017-10-16 Yong-Ming Wang Safety syringe making the retention surface of the tenon abutted against the retention surface on one side or both sides of the guide rail to achieve purpose of avoiding needle pricking condition from occurring
CN107530508A (en) * 2015-03-03 2018-01-02 江苏采纳医疗科技有限公司 Insulin syringe
US20190381250A1 (en) * 2018-06-19 2019-12-19 Paul Meola Dosage Limiting Device
CN209933805U (en) * 2019-03-14 2020-01-14 昆明医科大学第二附属医院 Novel nuclear medicine injection ware
CN210521473U (en) * 2019-05-30 2020-05-15 重庆医科大学附属永川医院 Telescopic blood vessel cleaner

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Publication number Priority date Publication date Assignee Title
US6235001B1 (en) * 1998-05-18 2001-05-22 O'holloran Brian Surgical needle with hand-actuable lock mechanism
CN2577865Y (en) * 2002-10-30 2003-10-08 乐清市长城塑料医械厂 Safety disposable syringes
US20100185147A1 (en) * 2009-01-22 2010-07-22 Cho-Ying Chen Disposable safety syringe structure
CN103285453A (en) * 2013-06-05 2013-09-11 倪伟清 Needle isolation type disposable syringe
CN107530508A (en) * 2015-03-03 2018-01-02 江苏采纳医疗科技有限公司 Insulin syringe
TW201735962A (en) * 2016-04-15 2017-10-16 Yong-Ming Wang Safety syringe making the retention surface of the tenon abutted against the retention surface on one side or both sides of the guide rail to achieve purpose of avoiding needle pricking condition from occurring
US20190381250A1 (en) * 2018-06-19 2019-12-19 Paul Meola Dosage Limiting Device
CN209933805U (en) * 2019-03-14 2020-01-14 昆明医科大学第二附属医院 Novel nuclear medicine injection ware
CN210521473U (en) * 2019-05-30 2020-05-15 重庆医科大学附属永川医院 Telescopic blood vessel cleaner

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113304377A (en) * 2021-04-25 2021-08-27 山东大学齐鲁医院 Syringe for anesthesia
CN113304377B (en) * 2021-04-25 2023-07-04 山东大学齐鲁医院 Injector for anesthesia
CN118490958A (en) * 2024-06-20 2024-08-16 徐州市中心医院 Local anesthesia drug delivery device for treating pain
CN118490958B (en) * 2024-06-20 2024-10-15 徐州市中心医院 Local anesthesia drug delivery device for treating pain

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