CN112494119B - Drug application device for minimally invasive surgery in pain department and use method - Google Patents
Drug application device for minimally invasive surgery in pain department and use method Download PDFInfo
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- CN112494119B CN112494119B CN202011542667.6A CN202011542667A CN112494119B CN 112494119 B CN112494119 B CN 112494119B CN 202011542667 A CN202011542667 A CN 202011542667A CN 112494119 B CN112494119 B CN 112494119B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
Abstract
The invention provides a drug application device for minimally invasive surgery in pain department and a using method thereof, belonging to the technical field of medical instruments. The subassembly of giving medicine to the poor free of charge includes the sleeve pipe, the plug, core bar and syringe needle, the plug slides in the cover intraductal, the core bar is fixed in the plug, syringe needle demountable installation is in the sleeve pipe, coupling assembling includes the connecting cylinder, the mount pad, the gear, the ring gear, first rotary sleeve and connecting rod, the connecting cylinder cup joints in the sleeve pipe, and the connecting cylinder has seted up the cavity, the mount pad is fixed in the cavity, the gear revolve in the mount pad, ring gear meshing transmission is in the gear, and the ring gear is fixed in first rotary sleeve, first rotary sleeve rotates in the connecting cylinder, the connecting rod is fixed in the syringe needle, and the connecting rod transmission is in the gear, the joint subassembly includes snap ring and rand, the snap ring is fixed in the syringe needle, the rand is fixed in the connecting cylinder, the snap ring can joint in rand. The device can avoid taking place to become flexible between syringe needle and the syringe needle, and then improves the security of giving medicine to the poor free of charge.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a drug application device for minimally invasive surgery in pain department and a using method thereof.
Background
Minimally invasive techniques used in the pain department are mainly used for treating herniated disc, and include collagenase, incision suction, discoscope (PED), PLDD, ozone, IDET, radiofrequency, ion knife, and the like. In order to better cooperate with the treatment of the patient and the doctor, the patient needs to be anesthetized during the minimally invasive surgery, so that the patient can relieve the pain and a good surgical condition is created for the doctor.
The general anesthesia is used disposable syringe needle and cooperatees and administer medicine, but present syringe needle and syringe needle most carry out high-speed joint through the buckle draw-in groove, and this kind of structure is though can simple and fast install and use, nevertheless also and cause easily in the in-process of using to take place to become flexible between syringe needle and the syringe needle, and then probably leads to the air to enter into the syringe needle in, causes serious consequence.
Disclosure of Invention
In order to make up for the defects, the invention provides a drug application device for minimally invasive surgery in pain department and a using method thereof, aiming at solving the problem that the needle head and the needle head are loosened.
The invention is realized by the following steps: the invention provides a drug delivery device for minimally invasive surgery in pain department.
The medicine applying assembly comprises a sleeve, a rubber plug, a core bar and a needle head, the rubber plug is connected in the sleeve in a sliding mode, the core bar is fixedly connected with the rubber plug, and the needle head is detachably mounted at one end, far away from the core bar, of the sleeve.
Coupling assembling includes connecting cylinder, mount pad, gear, ring gear, first rotary sleeve and connecting rod, the connecting cylinder cup joint in the sleeve pipe is close to the one end of syringe needle, just the cavity has been seted up to the connecting cylinder, mount pad fixed connection in the cavity, gear revolve connect in the mount pad, the ring gear meshing transmission in the gear, just ring gear fixed connection in the first rotary sleeve, first rotary sleeve rotate connect in the connecting cylinder, connecting rod fixed connection in the syringe needle is close to sheathed tube one end, just the connecting rod can run through in the connecting cylinder to can the transmission connect in the gear.
The joint subassembly includes snap ring and rand, snap ring fixed connection in the syringe needle is close to the one end of connecting cylinder, rand fixed connection in the connecting cylinder, the snap ring can the joint in the rand.
In one embodiment of the invention, the connecting rods are provided in plurality and uniformly distributed along the circumferential direction of the needle.
In one embodiment of the invention, the gear is provided with a first internally threaded portion and the connecting rod is provided with a first externally threaded portion, the first internally threaded portion being adapted to fit with the first externally threaded portion.
In an embodiment of the present invention, a rotating block is fixedly connected to the first rotating sleeve, a rotating groove is formed in the connecting cylinder, and the rotating block is rotatably connected to the rotating groove.
In one embodiment of the present invention, two rotation slots are provided and are respectively located at two side positions of the gear.
In one embodiment of the invention, the rubber plug is a medical silica gel rubber plug, and the outer diameter of the rubber plug is equal to the inner diameter of the sleeve.
In one embodiment of the invention, the first rotating sleeve is provided with anti-slip strips configured to increase the friction of the hand against the first rotating sleeve.
In one embodiment of the present invention, the cannula is a transparent cannula made of high polymer polypropylene, and the cannula is provided with scale marks configured to measure the liquid medicine.
In one embodiment of the invention, the sleeve is provided with two fixing rings, and the two fixing rings are respectively and symmetrically arranged on the sleeve.
The application embodiment provides a use method of a drug delivery device for minimally invasive surgery in pain department, which is carried out by using the drug delivery device for minimally invasive surgery in pain department, and comprises the following steps:
the method comprises the following steps: firstly, arranging corresponding liquid medicine in a sleeve according to scale marks;
step two: then, the needle head is replaced, firstly, the connecting rod on the needle head is inserted into the connecting cylinder, so that the connecting rod can be abutted against the gear, then the first rotating sleeve is rotated, the gear is driven by the gear ring to rotate, then the needle head is pushed inwards at the same time, so that the gear is driven on the connecting rod, the connecting rod can move in the gear, and the needle head can be firmly installed on the sleeve;
step three: when the needle head is close to the connecting cylinder, the snap ring on the needle head can be clamped on the snap ring of the connecting cylinder, and the needle head can be further stably arranged on the sleeve;
step four: then the core rod is pushed by the fixing ring, so that the core rod moves in the sleeve, air in the sleeve is discharged from the needle head, and then the medicine is applied.
The invention has the beneficial effects that: when the drug applying device for minimally invasive surgery in pain department is used and a needle needs to be replaced, the connecting rod on the needle is firstly inserted into the connecting cylinder, so that the connecting rod can be abutted against the gear, then the first rotating sleeve is rotated, the gear rotates, then the needle is pushed inwards at the same time, the gear is driven on the connecting rod, the first internal thread part of the gear is driven with the first external thread part of the connecting rod, and the needle is arranged on the sleeve;
when the syringe needle is close to the connecting cylinder, snap ring on the syringe needle can the joint on the rand of connecting cylinder, further can be with stable the installing on the sleeve pipe of syringe needle. The device can avoid taking place to become flexible between syringe needle and the syringe needle, and then improves the security of giving medicine to the poor free of charge.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 diagram of an overall explosive structure provided by an embodiment of the present invention;
FIG. 2 is a schematic overall cross-sectional structure provided in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;
FIG. 4 is a schematic diagram of a portion of a structure provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an overall apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an exploded structure of a drug filling assembly according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a drug filling assembly according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a connector assembly according to an embodiment of the present invention;
FIG. 9 is an enlarged view of FIG. 8 taken at B of the present invention;
fig. 10 is a schematic structural diagram of a connecting assembly according to an embodiment of the present invention.
In the figure: 100-a dosing assembly; 110-a cannula; 111-graduation mark; 112-a fixed ring; 120-rubber plug; 130-core rod; 131-a turning block; 140-a needle; 200-a connection assembly; 210-a connector barrel; 211-a chamber; 212-a rotating tub; 220-a mounting seat; 230-a gear; 231 — a first internal threaded portion; 240-gear ring; 250-a first rotating sleeve; 251-a rotation block; 260-connecting rod; 261-a first external threaded portion; 300-a snap-fit assembly; 310-a snap ring; 320-a collar; 400-a drug-filling assembly; 410-medicine storage tube; 411-medicine outlet holes; 412-a second external threaded portion; 420-installing a pipe; 430-a connecting rod; 440-a second rotating sleeve; 441-rotating the trough; 442-skid resistant stripes; 450-rotating the lid; 451-a second internal threaded portion; 452-rubber block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
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 invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1, the present invention provides a technical solution: a drug delivery device for minimally invasive surgery in pain department comprises a drug delivery assembly 100, a connecting assembly 200 and a clamping assembly 300.
Referring to fig. 1, the connection assembly 200 and the latch assembly 300 are mounted on the administration assembly 100, the administration assembly 100 is mainly used for injecting a liquid medicine into a body of a patient, the connection assembly 200 is mainly used for stably mounting the administration assembly 100, and the latch assembly 300 is mainly used for further stably connecting the administration assembly 100, thereby being safely used for administration.
Referring to fig. 2, 4 and 5, the administration assembly 100 includes a sleeve 110, a rubber plug 120, a core pin 130 and a needle 140, the rubber plug 120 is slidably connected in the sleeve 110, and the outer diameter of the rubber plug 120 is equal to the inner diameter of the sleeve 110, so that the rubber plug 120 has better sealing performance in the sleeve 110. And the rubber plug 120 is made of medical silica gel, and an annular groove can be arranged at the edge of the bottom surface of the rubber plug 120, so that the periphery of the bottom surface of the rubber plug 120 becomes soft and elastic when in use, and meanwhile, the groove plays a role in supporting and resisting extrusion on the periphery of the bottom surface of the rubber plug 120, so that the rubber plug 120 is not easy to deform, and the inner side of the sleeve 110 and the rubber plug 120 can be better sealed. The fixing ring 112 is fixedly connected to one end of the sleeve 110 close to the rotating cover 450, and the core rod 130 can drive the rubber plug 120 to move up and down in the sleeve 110 conveniently and laborsavingly by the thumb, the index finger and the middle finger, so that the liquid medicine in the sleeve 110 can be applied. The core bar 130 is fixedly connected to the rubber plug 120, the needle 140 is detachably mounted at one end of the sleeve 110 far away from the core bar 130, the sleeve 110 is a transparent sleeve made of high polymer polypropylene, the sleeve 110 is provided with scale marks 111, the scale marks 111 are used for measuring liquid medicine, the situation of the liquid medicine in the sleeve 110 can be observed through the sleeve 110, the capacity of the liquid medicine can be further accurately measured through the scale marks 111, and then the appropriate dosage is selected according to actual situations for administration.
Referring to fig. 2, 3 and 9, the connecting assembly 200 includes a connecting cylinder 210, a mounting seat 220, a gear 230, a gear ring 240, a first rotating sleeve 250 and a connecting rod 260, the connecting cylinder 210 is sleeved on one end of the sleeve 110 close to the needle 140, the connecting cylinder 210 is provided with a cavity 211, the mounting seat 220 is fixedly connected in the cavity 211, one part of the gear 230 can be located in the cavity 211, the other part can be located outside the cavity 211, the gear 230 can be rotatably connected to the mounting seat 220, so that the gear ring 240 can be engaged with and driven by the gear 230, the gear ring 240 is fixedly connected in the first rotating sleeve 250, the first rotating sleeve 250 is rotatably connected to the connecting cylinder 210, the first rotating sleeve 250 is fixedly connected with a rotating block 251, the connecting cylinder 210 is provided with two rotating grooves 212, the two rotating grooves 212 are located on two sides of the gear 230, the rotating block 251 is rotatably connected to the rotating grooves 212, and the first rotating sleeve 250 enables the first rotating sleeve 250 to drive the gear 230 to perform operations while the connecting cylinder 210 Rotate for the device is rational in infrastructure, the operation of being convenient for.
Referring to fig. 2, 8 and 10, the anti-slip stripes 442 are disposed on the first rotating sleeve 250 to facilitate the rotation of the first rotating sleeve 250 by increasing the friction force. The connecting rod 260 is fixedly connected to one end of the needle 140 close to the sleeve 110, and the connecting rod 260 can penetrate through the connecting cylinder 210, and the diameter of a penetrating port on the connecting cylinder 210 is larger than that of the connecting rod 260, so that the connecting rod 260 can smoothly enter and exit on the connecting cylinder 210. The connecting rod 260 is connected to the gear 230 in a transmission manner, the gear 230 is provided with a first internal thread part 231, the connecting rod 260 is provided with a first external thread part 261, the first internal thread part 231 is matched with the first external thread part 261, so that the gear 230 pushes the needle 140 inwards while rotating, the first external thread part 261 of the connecting rod 260 is driven in the first internal thread part 231 of the gear 230, the connecting rod 260 is stably installed on the sleeve 110, and the connecting rods 260 and the gear 230 are provided in a plurality, so that connection between the connecting rods 260 and the gear 230 is more stable, and safe administration is performed. When the needle 140 is used once, the needle can be removed and replaced, thereby avoiding infection and unpredictable effect when the medicine is applied to the patient.
Referring to fig. 4, 9 and 10, the locking assembly 300 includes a locking ring 310 and a collar 320, the locking ring 310 is fixedly connected to an end of the needle 140 near the connector barrel 210, the collar 320 is fixedly connected to the connector barrel 210, the locking ring 310 can be locked to the collar 320, the locking ring 310 is semi-arc-shaped, and the collar 320 is provided with a plurality of angled notches, so that the locking ring 310 can be used in cooperation with the collar 320, and when the right end of the needle 140 is close to the connector barrel 210, the locking ring 310 can be locked between the collar 320, and further, the needle 140 can be firmly and stably mounted on the cannula 110.
It should be noted that, at present, most of the used needle tubes are filled with the liquid medicine through suction, and because the volume of the needle tubes is small, after the liquid medicine in the needle tubes is used up, the needle tubes are taken down to be filled with the liquid medicine, so that the repeated operation may cause the breeding of bacteria, further cause the pollution of the liquid medicine, further endanger the health of patients, and the mode of taking the liquid medicine is slow, further cause the low working efficiency, and delay the optimal time for medicine application.
Referring to fig. 5 and fig. 6 and fig. 7, in order to solve the above problems, in an embodiment of the present invention, a medicine filling assembly 400 is disposed at the core rod 130, the medicine filling assembly 400 includes a medicine storage tube 410, a mounting tube 420, a connecting rod 430, a second rotating sleeve 440 and a rotating cover 450, the medicine storage tube 410 is disposed in the core rod 130, the medicine storage tube 410 and the rubber plug 120 are both provided with medicine outlet holes 411, the number of the medicine outlet holes 411 is plural, and the medicine outlet holes are uniformly distributed on the rubber plug 120 and the medicine storage tube 410, respectively, which not only can increase the liquid inlet speed, shorten the filling time, but also can improve the maximum effect for medicine application. The installation tube 420 is fixedly connected in the drug storage tube 410, the connecting rod 430 is arranged in the installation tube 420, the installation tube 420 can prevent the drug solution from seeping into the sleeve 110 along the connecting rod 430, and the details are maximized to the maximum extent. And the connecting rod 430 can penetrate through the medicine storage tube 410 and is fixedly connected to the rubber plug 120, so as to facilitate the movement of the rubber plug 120 up and down in the casing tube 110, and further to administer medicine. The second rotary sleeve 440 is fixedly connected to one end of the medicine storage tube 410 far away from the rubber plug 120 through a whole, the second rotary sleeve 440 is rotatably connected to the sleeve 110, the second rotary sleeve 440 is provided with a rotating groove 441, the core rod 130 is fixedly connected with the rotating block 131, the rotating block 131 is rotatably connected to the rotating groove 441, the second rotary sleeve 440 is rotated, and then the medicine storage tube 410 can be driven to rotate in the sleeve 110, when the medicine outlet hole 411 of the medicine storage tube 410 is aligned with the medicine outlet hole 411 of the rubber plug 120, the medicine liquid in the medicine storage tube 410 can be flowed into the sleeve 110. Can adorn the liquid medicine in advance in medicine storage tube 410, not only can be reserve at any time, can also avoid the change of sleeve pipe 110 and adorn the liquid medicine repeatedly and cause breeding of bacterium, for the biggest protection of patient's safety improvement.
Referring to fig. 2, 6 and 7, the anti-slip stripes 442 are also disposed on the second rotary sleeve 440, so that the friction between the anti-slip stripes 442 and the hand is increased, and the second rotary sleeve 440 is further convenient to rotate, so that the liquid medicine in the medicine storage tube 410 can reach the interior of the sleeve 110. The rotary cover 450 is detachably mounted at one end of the medicine storage tube 410 close to the second rotary sleeve 440, the rotary cover 450 is provided with a second internal thread portion 451, the medicine storage tube 410 is provided with a second external thread portion 412, the second external thread portion 412 is adapted to the second internal thread portion 451, a rubber block 452 is fixedly connected in the rotary cover 450, the rubber block 452 can abut against the medicine storage tube 410, and the upper end of the medicine storage tube 410 can be sealed by the rubber block 452 when the rotary cover 450 is covered. When a liquid medicine needs to be added into the medicine storage tube 410, the rotary cover 450 is rotated firstly, then the second internal thread part 451 transmits on the second external thread part 412, and then the rotary cover 450 is taken down from the medicine storage tube 410, so that the liquid medicine can be added into the medicine storage tube 410.
The application embodiment provides a use method of a drug delivery device for minimally invasive surgery in pain department, which is carried out by using the drug delivery device for minimally invasive surgery in pain department, and comprises the following steps:
the method comprises the following steps: firstly, the rotary cap 450 is rotated, the rotary cap 450 is detached from the medicine storage tube 410 through the second internal thread part 451, medicine liquid to be applied is added into the medicine storage tube 410, and then the rotary cap 450 is mounted on the medicine storage tube 410, so that the medicine storage tube 410 can be sealed by the rubber block 452;
step two: then, the second rotary sleeve 440 is rotated, and the second rotary sleeve 440 drives the medicine storage tube 410 to rotate in the sleeve 110, when the medicine outlet 411 of the medicine storage tube 410 is communicated with the medicine outlet 411 of the rubber plug 120, the medicine liquid of the medicine storage tube 410 can directly flow into the sleeve 110, and medicine application is performed through the scale mark 111;
step three: then, the needle 140 is replaced, first, the connecting rod 260 on the needle 140 is inserted into the connecting cylinder 210, so that the connecting rod 260 can abut against the gear 230, then the first rotating sleeve 250 is rotated, and the gear 230 rotates, and then the needle 140 is pushed inwards at the same time, so that the gear 230 is driven on the connecting rod 260, the first internal thread 231 of the gear 230 and the first external thread 261 of the connecting rod 260 are driven, and the needle 140 is mounted on the sleeve 110;
step four: when the needle 140 approaches the connecting cylinder 210, the snap ring 310 on the needle 140 can be clamped on the collar 320 of the connecting cylinder 210, and further, the needle 140 can be stably arranged on the sleeve 110;
step five: the rotating cap 450 is then pushed through the retaining ring 112, thereby moving the stem 130 within the cannula 110 such that air within the cannula 110 is expelled from the needle 140 prior to administration.
Specifically, the working principle of the drug application device for minimally invasive surgery in pain department and the using method is as follows: firstly, the rotary cap 450 is rotated, the rotary cap 450 is detached from the medicine storage tube 410 through the second internal thread part 451, medicine liquid to be applied is added into the medicine storage tube 410, and then the rotary cap 450 is mounted on the medicine storage tube 410, so that the medicine storage tube 410 can be sealed by the rubber block 452;
then, the second rotary sleeve 440 is rotated, and the second rotary sleeve 440 drives the medicine storage tube 410 to rotate in the sleeve 110, when the medicine outlet 411 of the medicine storage tube 410 is communicated with the medicine outlet 411 of the rubber plug 120, the medicine liquid of the medicine storage tube 410 can directly flow into the sleeve 110, and medicine application is performed through the scale mark 111;
then, the needle 140 is replaced, first, the connecting rod 260 on the needle 140 is inserted into the connecting cylinder 210, so that the connecting rod 260 can abut against the gear 230, then the first rotating sleeve 250 is rotated, and the gear 230 is driven by the gear ring 240 to rotate, and then the needle 140 is pushed inwards at the same time, so that the gear 230 is driven on the connecting rod 260, so that the first internal thread 231 of the gear 230 and the first external thread 261 of the connecting rod 260 are driven to transmit, and then the needle 140 is mounted on the sleeve 110;
when the needle 140 approaches the connecting cylinder 210, the snap ring 310 on the needle 140 can be clamped on the collar 320 of the connecting cylinder 210, and further, the needle 140 can be stably arranged on the sleeve 110;
the rotating cap 450 is then pushed through the retaining ring 112, thereby moving the stem 130 within the cannula 110 such that air within the cannula 110 is expelled from the needle 140 prior to administration.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A drug delivery device for minimally invasive surgery in pain department is characterized by comprising
The drug delivery assembly (100), the drug delivery assembly (100) comprises a sleeve (110), a rubber plug (120), a core bar (130) and a needle (140), the rubber plug (120) is slidably connected in the sleeve (110), the core bar (130) is fixedly connected to the rubber plug (120), and the needle (140) is detachably mounted at one end of the sleeve (110) far away from the core bar (130);
a connecting assembly (200), the connecting assembly (200) includes a connecting cylinder (210), a mounting seat (220), a gear (230), a gear ring (240), a first rotating sleeve (250) and a connecting rod (260), the connecting cylinder (210) is sleeved at one end of the sleeve (110) close to the needle (140), a chamber (211) is opened on the connecting cylinder (210), the mounting seat (220) is fixedly connected in the chamber (211), the gear (230) is rotatably connected in the mounting seat (220), the gear ring (240) is engaged and driven with the gear (230), the gear ring (240) is fixedly connected in the first rotating sleeve (250), the first rotating sleeve (250) is rotatably connected in the connecting cylinder (210), the connecting rod (260) is fixedly connected at one end of the needle (140) close to the sleeve (110), and the connecting rod (260) can penetrate through the connecting cylinder (210), the gear 230 is provided with a first internal thread part 231, the connecting rod 260 is provided with a first external thread part 261, and the first internal thread part 231 is matched with the first external thread part 261;
joint subassembly (300), joint subassembly (300) includes snap ring (310) and rand (320), snap ring (310) fixed connection in syringe needle (140) are close to the one end of connecting cylinder (210), rand (320) fixed connection in connecting cylinder (210), snap ring (310) can the joint in rand (320).
2. The device for applying drug for minimally invasive surgery in pain department according to claim 1, characterized in that the connecting rods (260) are provided in plurality and uniformly distributed along the circumference of the needle (140).
3. A pain applying device for minimally invasive surgery according to claim 1, characterized in that the gear (230) is provided with a first internal threaded portion (231), the connecting rod (260) is provided with a first external threaded portion (261), and the first internal threaded portion (231) is adapted to the first external threaded portion (261).
4. The drug delivery device for minimally invasive surgery in pain department according to claim 1, characterized in that a rotating block (251) is fixedly connected with the first rotating sleeve (250), a rotating groove (212) is formed in the connecting cylinder (210), and the rotating block (251) is rotatably connected with the rotating groove (212).
5. The device for applying drug for minimally invasive surgery in pain department according to claim 4, characterized in that, the rotating groove (212) is provided with two and respectively located at two sides of the gear (230).
6. The drug delivery device for minimally invasive surgery in pain department according to claim 1, characterized in that the rubber plug (120) is a medical silica gel rubber plug, and the outer diameter of the rubber plug (120) is equal to the inner diameter of the cannula (110).
7. A pain applying device for minimally invasive surgery according to claim 1, characterized in that the first rotating sleeves (250) are each provided with an anti-slip strip (442), the anti-slip strips (442) being configured for increasing the friction of the hand on the first rotating sleeves (250).
8. The drug delivery device for minimally invasive surgery in pain department according to claim 1, characterized in that the sleeve (110) is a transparent high polymer polypropylene sleeve, and the sleeve (110) is provided with graduation lines (111), and the graduation lines (111) are configured to measure the drug solution.
9. The drug delivery device for minimally invasive surgery in pain department according to claim 1, characterized in that the cannula (110) is provided with fixing rings (112), and the fixing rings (112) are provided with two and respectively symmetrically arranged on the cannula (110).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011542667.6A CN112494119B (en) | 2020-12-22 | 2020-12-22 | Drug application device for minimally invasive surgery in pain department and use method |
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| CN202011542667.6A CN112494119B (en) | 2020-12-22 | 2020-12-22 | Drug application device for minimally invasive surgery in pain department and use method |
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| CN112494119A CN112494119A (en) | 2021-03-16 |
| CN112494119B true CN112494119B (en) | 2021-09-28 |
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| CN117442416B (en) * | 2023-12-22 | 2024-03-22 | 山东航维骨科医疗器械股份有限公司 | Bone resetting device for children |
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