CN216855426U - Nerve block medicine syringe under ultrasonic guidance - Google Patents
Nerve block medicine syringe under ultrasonic guidance Download PDFInfo
- Publication number
- CN216855426U CN216855426U CN202120971503.9U CN202120971503U CN216855426U CN 216855426 U CN216855426 U CN 216855426U CN 202120971503 U CN202120971503 U CN 202120971503U CN 216855426 U CN216855426 U CN 216855426U
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- wall
- shell
- injection tube
- adjusting screw
- piston
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- 210000005036 nerve Anatomy 0.000 title claims abstract description 27
- 239000003814 drug Substances 0.000 title claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 61
- 239000007924 injection Substances 0.000 claims abstract description 61
- 229940079593 drug Drugs 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000003444 anaesthetic effect Effects 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 206010002091 Anaesthesia Diseases 0.000 description 5
- 230000037005 anaesthesia Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000003589 local anesthetic agent Substances 0.000 description 3
- 230000036592 analgesia Effects 0.000 description 2
- 230000003533 narcotic effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model particularly discloses an ultrasonic-guided nerve block medicine injector which comprises a shell and an injection needle, wherein an injection tube is arranged in the shell, the outer wall of the injection tube is fixedly connected with the inner wall of the shell through a fixed block, the front end of the injection tube is communicated with the injection needle through a spiral connecting tube, a piston and a piston rod are arranged in the injection tube, one end of the piston rod is fixedly connected with the piston, the other end of the piston rod extends out of the rear end of the injection tube and is connected with an adjusting component, and the piston moves in the injection tube by utilizing the adjusting component; the injection tube is characterized in that through holes are formed in coaxial lines of the side wall of the injection tube, the fixing block and the side wall of the shell, isolating plugs are arranged in the through holes, baffles are arranged on the outer sides of the isolating plugs, and the baffles are movably connected with the side wall of the shell through fixing columns.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a nerve blocking drug injector under ultrasonic guidance.
Background
Nerve block anesthesia: the local anesthetic is injected to the nerve trunk, nerve plexus or paraganglionic of trunk or limbs to temporarily block the conduction function of the nerve and generate anesthesia in the area dominated by the nerve trunk or nerve plexus or paraganglionic. The local nerve block has small influence on the respiration, circulation, central nervous system and the like of a patient, is widely applied to clinical anesthesia work, particularly for patients who have serious cardiovascular and cerebrovascular diseases and respiratory system diseases and need surgical operations, can meet the requirement of analgesia of the patient, is a common analgesia method for a pain department, and provides guarantee for quick recovery of postoperative patients.
The nerve blocking technology under ultrasonic guidance: the third eye of the anesthesiologist is treated by ultrasound, so that the influence on the health of a patient is small, accurate anatomical positioning can be provided, the improvement of a nerve blocking effect is guaranteed, and the occurrence probability of related complications is reduced.
At present, the nerve blocking operation under the guidance of ultrasound is realized by connecting an extension tube with a common syringe, an operator holds an ultrasonic probe with one hand and holds a nerve blocking needle with the other hand, the blocking needle is close to the vicinity of a nerve to be blocked along with the display of an ultrasonic image, an assistant is responsible for drawing back blood or not, and then local anesthetic is injected. Therefore, two persons are needed to cooperate with each other, which wastes manpower, and the physician and the assistant may have differences in the timing of injecting the medicine, the amount of the medicine to be injected, etc., which is not good enough to cooperate with each other, prolongs the operation time, and affects the retardation effect.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model provides the nerve block medicine injector under the ultrasonic guidance, which can be held by a surgeon with one hand, has the bidirectional effects of withdrawing and injecting local anesthetic, greatly shortens the anesthesia operation time and improves the medicine injection accuracy.
The technical scheme adopted by the utility model is as follows:
an ultrasonic-guided nerve block drug injector comprises a shell and an injection needle, wherein an injection tube is arranged in the shell, the outer wall of the injection tube is fixedly connected with the inner wall of the shell through a fixed block, the front end of the injection tube is communicated with the injection needle through a spiral connecting tube, a piston and a piston rod are arranged in the injection tube, one end of the piston rod is fixedly connected with the piston, the other end of the piston rod extends out of the rear end of the injection tube and is connected with an adjusting assembly, and the piston is enabled to move in the injection tube by the adjusting assembly; the injection tube is characterized in that through holes are formed in coaxial lines of the side wall of the injection tube, the fixing block and the side wall of the shell, isolating plugs are arranged in the through holes, baffles are arranged on the outer sides of the isolating plugs, and the baffles are movably connected with the side wall of the shell through fixing columns.
Preferably, a transparent sleeve is arranged on the outer side of the spiral connecting pipe, one end of the transparent sleeve is connected with the outer wall of the front end of the injection tube, the other end of the transparent sleeve is connected with the inner wall of the front end of the shell, and the spiral connecting pipe is made of transparent medical hard plastic.
Preferably, the adjusting component comprises an adjusting screw, a guide rod, a support, a sliding block and a micro motor, the adjusting screw and the guide rod are symmetrically arranged on two sides of the piston rod, the front ends of the adjusting screw and the guide rod are respectively connected with the inner wall of the shell through the support, the adjusting screw is rotatably connected with the support, the guide rod is fixedly connected with the support, the rear end of the adjusting screw is connected with the micro motor through a coupler, the rear end of the guide rod is fixedly connected with the inner wall of the rear end of the shell, the sliding block is arranged at the rear end of the piston rod and arranged on the adjusting screw and the guide rod, the sliding block is in threaded connection with the adjusting screw, the sliding block is in sliding connection with the guide rod, the micro motor is fixed on the inner wall of the shell and connected with the storage battery through a switch button, the switch button is arranged on the side wall of the shell, the storage battery is arranged inside the shell, the motor can be installed on the side wall of the motor, a socket is arranged on the outer wall of the rear end of the shell, and the socket is connected with the storage battery through a wire.
Preferably, the inner wall of the through hole is provided with at least two glue dispensing holes corresponding to the isolating plug, and the glue dispensing holes are uniformly distributed at intervals along the circumferential direction of the inner wall of the through hole.
Preferably, the front half of the housing is a transparent structure.
Preferably, the injection cylinder is made of transparent materials, and the outer wall of the injection cylinder is provided with scale marks.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model is made of common medical materials, has high realizability and low cost; can realize that single completion supersound guide is nerve blocking technique down, make the art person operate succinctly, shorten anesthesia operating time greatly, improve the injection accuracy.
The utility model utilizes the micro motor to drive the adjusting screw rod to rotate, thereby driving the sliding block to move on the adjusting screw rod, pushing the piston rod to move along with the movement, thereby realizing the functions of forward pushing and backward pushing of the piston in the injection tube, thereby realizing the purposes of withdrawing and injecting, thereby realizing single-person operation, and utilizing the spiral connecting pipe to connect the injection needle head and the injection tube, the spiral connecting pipe prevents the anesthetic from directly contacting with the returned blood, and enough judgment time is reserved for an operator, when the blood is returned in the spiral connecting pipe, the utility model proves that the anesthetic is inserted into the blood vessel, and the operator can immediately adjust the position of the injection needle head, thereby having strong operability and good realizability, and being worthy of popularization and use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an ultrasound-guided nerve block drug injector according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an ultrasound-guided nerve block drug injector according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
Wherein, 1-shell; 2-an injection cylinder; 3-syringe needle; 4-spiral connecting pipe; 5-a piston; 6-a piston rod; 7-fixing blocks; 8-a transparent sleeve; 9-isolating plug; 10-a baffle plate; 11-dispensing holes; 12-a support; 13-a guide bar; 14-a slider; 15-adjusting the screw; 16-a micro-motor; 17-switch key; 18-socket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model particularly discloses an ultrasonic-guided nerve block medicine injector, which comprises a shell 1 and an injection needle 3, wherein an injection tube 2 is arranged in the shell 1, the outer wall of the injection tube 2 is fixedly connected with the inner wall of the shell 1 through a fixing block 7, the front end of the injection tube 2 is communicated with the injection needle 3 through a spiral connecting tube 4, and the rear end of the injection needle 3 is clamped in a mounting groove of the shell 1 and can be fixed by using glue dispensing (a threaded connection mode can also be adopted, so that the needle can be conveniently detached and replaced). Wherein the volume of the syringe 2 is 30-40 ml.
Specifically, a piston 5 and a piston rod 6 are arranged in the injection tube 2, one end of the piston rod 6 is fixedly connected with the piston 5, the other end of the piston rod extends out of the rear end of the injection tube 2 and is connected with an adjusting assembly, and the piston 5 moves in the injection tube 2 by utilizing the adjusting assembly; the coaxial lines of the side wall of the injection cylinder 2, the fixing block and the side wall of the shell are provided with through holes, isolation plugs 9 are arranged in the through holes, baffle plates 10 are arranged on the outer sides of the isolation plugs 9, and the baffle plates 10 are movably connected with the side wall of the shell 1 through fixing columns.
As shown in fig. 3, at least two dispensing holes 11 are formed in the inner wall of the through hole corresponding to the isolating plug 9, and the dispensing holes 11 are uniformly arranged at intervals along the circumferential direction of the inner wall of the through hole. Make keep apart stopper 9 reliable with perforation internal connection, simultaneously the accessible keeps apart stopper 9 and utilizes the needle tubing injection to injection 2 insides of injection tube before the art with the narcotic in advance, keeps apart simultaneously that stopper 9 can be fine prevents the narcotic outflow, guarantees the atmospheric pressure environment in the injection tube to utilize baffle 10 to protect isolation stopper 9, in order to prevent that isolation stopper 9 is contaminated.
As shown in fig. 2, the adjusting assembly includes an adjusting screw 15, a guide rod 13, a support 12, a sliding block 14 and a micro motor 16, the adjusting screw 15 and the guide rod 13 are symmetrically disposed on two sides of the piston rod 6, the front ends of the adjusting screw 15 and the guide rod 13 are respectively connected with the inner wall of the housing 1 through the support 12, the adjusting screw 15 is rotatably connected with the support 12, the guide rod 13 is fixedly connected with the support 12, the rear end of the adjusting screw 15 is connected with the micro motor 16 through a coupling, the rear end of the guide rod 13 is fixedly connected with the inner wall of the rear end of the housing 1, the sliding block 14 is disposed at the rear end of the piston rod 6 and is disposed on the adjusting screw 15 and the sliding block 13, the sliding block 14 is connected with the adjusting screw 15 by a screw thread, the sliding block 14 is connected with the guide rod 13, the micro motor 16 is fixed on the inner wall of the housing and is connected with a storage battery (not shown in the figure) through a switch key 17, the switch key 17 is arranged on the side wall of the shell, and the switch key is marked with
And
wherein,
it is shown that the drawing back is performed,
indicating a bolus injection.
The storage battery is arranged inside the shell 1 and can be installed on the side wall of the motor, a socket 18 is arranged on the outer wall of the rear end of the shell 1, the socket 18 is connected with the storage battery through a wire, and the storage battery can be charged through the socket 18.
The connection mode and implementation mode of the micro motor 16, the storage battery and the switch key 17 are the prior contents, and are not described in detail here.
In this embodiment, the outer side of the spiral connecting pipe 4 is provided with a transparent sleeve 8, one end of the transparent sleeve 8 is connected with the outer wall of the front end of the syringe 2, the other end of the transparent sleeve 8 is connected with the inner wall of the front end of the housing 1, and the spiral connecting pipe 4 is also made of transparent medical hard plastic. The spiral connecting pipe 4 is along the thinking of the extension pipe used at present, the distance between the extended syringe needle and the syringe barrel is reserved for the sufficient judgment time of the operator, and the blood return is ensured not to be in direct contact with the anesthetic.
In this embodiment, the front half of the housing 1 is a transparent structure, and the front half and the rear half of the housing 1 can be connected to form a whole by a thermoplastic method. The injection tube 2 in the shell 1 is made of transparent materials, can be made of medical plastics, and is provided with scale marks on the outer wall, so that the dosage of the anesthetic can be controlled.
The operation process is as follows:
utilize medical needle tubing to inject the anesthetic into injection tube 2 through the isolating plug in advance, because of the reason of heliciform connecting pipe 4, can prevent that the anesthetic from getting into injection needle 3 inside, art person inserts injection needle 3 around the nerve of supersound location, presses the switch button, and is directional
The piston rod 6 moves backwards under the movement of the sliding block to perform negative pressure suction, and if no blood returns, the switch button is pressed to point
The piston rod 6 moves forwards under the movement of the sliding block, and the piston 5 pushes the anesthetic to enter the injection needle head 3 through the spiral connecting pipe 4, so that the anesthetic injection is completed. If blood returns, the ultrasonic probe is adopted to reposition the nerve, and the steps are repeated.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, changes and equivalents of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (6)
1. An ultrasonic-guided nerve block drug injector comprises a shell and an injection needle, and is characterized in that an injection tube is arranged in the shell, the outer wall of the injection tube is fixedly connected with the inner wall of the shell through a fixed block, the front end of the injection tube is communicated with the injection needle through a spiral connecting tube, a piston and a piston rod are arranged in the injection tube, one end of the piston rod is fixedly connected with the piston, the other end of the piston rod extends out of the rear end of the injection tube and is connected with an adjusting assembly, and the piston moves in the injection tube by utilizing the adjusting assembly; the injection tube is characterized in that through holes are formed in coaxial lines of the side wall of the injection tube, the fixing block and the side wall of the shell, isolating plugs are arranged in the through holes, baffles are arranged on the outer sides of the isolating plugs, and the baffles are movably connected with the side wall of the shell through fixing columns.
2. The injector of claim 1, wherein a transparent sleeve is disposed outside the spiral connecting tube, one end of the transparent sleeve is connected to the outer wall of the front end of the syringe barrel, the other end of the transparent sleeve is connected to the inner wall of the front end of the housing, and the spiral connecting tube is made of transparent medical hard plastic.
3. The ultrasound-guided nerve block drug injector according to claim 1, wherein the adjusting assembly comprises an adjusting screw, a guide rod, a support, a sliding block and a micro motor, the adjusting screw and the guide rod are symmetrically arranged on both sides of the piston rod, the front ends of the adjusting screw and the guide rod are respectively connected with the inner wall of the housing through the support, the adjusting screw is rotatably connected with the support, the guide rod is fixedly connected with the support, the rear end of the adjusting screw is connected with the micro motor through a coupler, the rear end of the guide rod is fixedly connected with the inner wall of the rear end of the housing, the sliding block is arranged at the rear end of the piston rod and is arranged on the adjusting screw and the guide rod, the sliding block is in threaded connection with the adjusting screw, the sliding block is in sliding connection with the guide rod, the micro motor is fixed on the inner wall of the housing and is connected with the storage battery through a switch button, the switch button is arranged on the side wall of the shell, the storage battery is arranged inside the shell and can be installed on the side wall of the motor, a socket is arranged on the outer wall of the rear end of the shell, and the socket is connected with the storage battery through a wire.
4. The nerve block drug injector under ultrasonic guidance of claim 1, characterized in that the inner wall of the through hole is provided with at least two glue dispensing holes corresponding to the isolation plug, and the glue dispensing holes are evenly spaced along the circumference of the inner wall of the through hole.
5. The ultrasound-guided nerve-blocking drug injector of claim 1, wherein the front half of the housing is a transparent structure.
6. The injector of claim 1, wherein the syringe barrel is made of a transparent material, and the outer wall of the syringe barrel is provided with graduation lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120971503.9U CN216855426U (en) | 2021-05-08 | 2021-05-08 | Nerve block medicine syringe under ultrasonic guidance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120971503.9U CN216855426U (en) | 2021-05-08 | 2021-05-08 | Nerve block medicine syringe under ultrasonic guidance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216855426U true CN216855426U (en) | 2022-07-01 |
Family
ID=82122168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120971503.9U Active CN216855426U (en) | 2021-05-08 | 2021-05-08 | Nerve block medicine syringe under ultrasonic guidance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216855426U (en) |
-
2021
- 2021-05-08 CN CN202120971503.9U patent/CN216855426U/en active Active
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