CN109248356B

CN109248356B - High-efficient anesthetic needle

Info

Publication number: CN109248356B
Application number: CN201811189169.0A
Authority: CN
Inventors: 王丽; 李海芳
Original assignee: First Affiliated Hospital Of Hebei North University
Current assignee: First Affiliated Hospital Of Hebei North University
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2021-03-09
Anticipated expiration: 2038-10-12
Also published as: CN109248356A

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a high-efficiency anesthetic needle which comprises a push rod injector, a positioning disc and a needle body assembly, wherein the positioning disc comprises a plurality of sliding rails, a fixed outer ring and a central fixed seat, the sliding rails are arranged between the central fixed seat and the fixed outer ring, the bottom of each sliding rail is provided with the needle body assembly, the needle body assembly comprises a sliding block, a needle cylinder, a needle head and a positioning structure for controlling the depth of a needle inserting, and the positioning structure comprises an assembly supporting plate, an electromagnetic coil, two springs, a movable iron sheet, a positioning boss, a left supporting plate, a right supporting plate, an inner cylinder, a supporting plate, a. The invention can effectively solve the problems that the multi-point puncture can not adjust the quantity and the position of the individual needle heads and the individual puncture depth according to the patients.

Description

High-efficient anesthetic needle

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a high-efficiency anesthetic needle.

Background

In clinical practice, when a patient is anesthetized, multiple points of anesthesia are often needed, multiple times of puncture is carried out in a traditional mode, multiple times of pain is brought to the patient, the workload is heavy for medical staff, and some technical schemes also appear according to the problems, for example, a Chinese published patent, namely 'an injector for local anesthesia in a hospital anesthesia department operation' (the publication number is CN207640751U), although the multi-point simultaneous acupuncture can be realized, needles are arranged side by side, the relative positions cannot be adjusted according to the disease condition, and the practical use is inconvenient; further, as disclosed in the Chinese patent "a multi-point synchronous anesthetic needle for anesthesia" (publication No. CN206675802U), although the position of each needle can be slightly adjusted, the number of needle bodies is too small, and the adjustment of the distance between the needle bodies is very limited.

In addition, when the anesthesia is performed, a certain requirement is usually made on the depth of the puncture, and a scheme that a limit device is arranged on a needle head is provided in a patent published in China (publication number: CN 202909218U). The scheme has a serious defect that if a good positioning effect is desired, the pressure between the limit device and the needle head needs to be increased to increase friction, so that the hidden danger of extruding and deforming the needle head exists, and if sufficient pressure is not available, the good positioning effect cannot be ensured.

At present, the instrument which can provide individualized multipoint needle inserting quantity, position and needle inserting depth according to individual disease condition requirements has good market prospect.

Disclosure of Invention

According to the defects of the prior art, the invention provides the high-efficiency anesthetic needle, which can effectively solve the problems that the multi-point puncture cannot be performed according to the number and the position of individual needle heads of patients and the individual puncture depth can not be adjusted.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a high-efficiency anesthetic needle comprises a push rod injector, a positioning disc and a needle body assembly, wherein the positioning disc comprises a plurality of slide rails, a fixed outer ring and a central fixed seat which is used for being connected with the push rod injector and is hollow in structure, the central fixed seat is arranged in the center of a fixed outer ring, a plurality of first interfaces are arranged on the peripheral side wall of the central fixed seat, the plurality of slide rails are arranged between the central fixed seat and the fixed outer ring along the radial direction of the fixed outer ring, the needle body assembly is arranged at the bottom of each slide rail and comprises a slide block, a positioning structure, a needle cylinder and a needle head, the positioning structure comprises a component supporting plate, an electromagnetic coil, two springs, a movable iron sheet, a positioning boss, a left supporting plate, a right supporting plate, an inner cylinder, a supporting plate, a positioning ring and two positioning blocks, the left side and the right side of the bottom of the component supporting plate are respectively and vertically and downwards fixedly provided with a left supporting plate and a right supporting plate, an electromagnetic coil and an inner tube are arranged between the left supporting plate and the right supporting plate, the top of the electromagnetic coil is fixedly arranged at the bottom of the component supporting plate, the inner tube is arranged below the electromagnetic coil, the bottom of the inner tube is fixedly connected with the bottoms of the left supporting plate and the right supporting plate through a supporting plate, the outer side wall of the inner tube is provided with external threads, a positioning ring is in threaded connection with the outer side wall of the inner tube, the left side wall and the right side wall of the inner tube are vertically provided with square openings A, two positioning blocks are sleeved on the positioning ring and are respectively positioned at the square openings A at the two sides of the inner tube, one opposite sides of the two positioning blocks extend outwards, the vertical activity of cylinder sets up inside the inner tube, and its top vertical fixation is provided with moves the iron sheet, and its bottom periphery is provided with the location boss, move the iron sheet and set up between inner tube and solenoid, it is laminated mutually with the inboard wall of left and right backup pad about it, it is fixed between iron sheet and the layer board to be provided with the spring to move, the location boss sets up in the top of extension rod, and its border is laminated mutually with the inboard wall of inner tube, the cylinder passes through the hose and can dismantle with first interface and be connected, the distance between the top of moving the iron sheet to the bottom of syringe needle equals the distance between solenoid's bottom to the bottom of layer board.

Realizing multi-point anesthesia at any position:

the central fixing seat is used for collecting liquid medicine in the push rod injector and distributing the liquid medicine into the needle body assembly through the plurality of first interfaces. The one end vertical fixation of slide rail is used for supporting needle body subassembly's position in the lateral wall of central fixing base, and needle body subassembly can be pricked the position as required and changed the position that is located on the slide rail, and a plurality of needle body subassemblies can enclose into different shapes according to the state of an illness needs and carry out the multiple spot anesthesia.

The depth of the needle insertion is adjustable:

solenoid specifically can include the coil, the battery, the switch, each part is each other through connection of electric lines or settle on corresponding circuit board, set up all structures in the bottom of subassembly backup pad, the battery can be equipped with and be provided with the battery and place the box, the switch can be button or toggle type, when the switch closure, the coil circular telegram has magnetism, will move the iron sheet and adsorb solenoid's bottom, the top of syringe needle income layer board this moment, when contacting layer board and human body like this, the human body can not pricked by the syringe needle yet, when the switch is opened, there is not electricity in the coil, move the iron sheet and receive the pulling force downward movement of gravity and spring, the human body is pricked to the syringe needle.

The positioning ring can move up and down on the outer side wall of the inner cylinder through rotation, but the positioning block can only be sleeved on the positioning ring to move up and down along the square opening A because the extension rod is always positioned in the square opening A, so that the position of the extension rod on the inner cylinder is changed; the effect of extension rod is the position of restriction needle body subassembly at the inner tube, needle body subassembly is because moving the iron sheet and left, right side backup pad is laminated mutually, and location boss and inner tube laminate mutually, so needle body subassembly can be in vertical direction stable reciprocating, be provided with the spring between moving iron sheet and the layer board, when solenoid circular telegram, can upwards adsorb moving the iron sheet, whole needle body subassembly is upwards mentioned, when solenoid outage no longer adsorbs moving the iron sheet, moving the iron sheet and receiving the decurrent pulling force of spring, whole needle body subassembly is the downstream, location boss is including the section of thick bamboo downstream, when location boss touches the extension rod, its decurrent motion is restricted, the length that the syringe needle exposes from the layer board bottom can be controlled as required like this.

Among them, the preferred mode is:

the cross section of left branch fagging and right branch fagging is the opposite arc of opening, two the spring sets up respectively in the arc of left branch fagging and right branch fagging is buckled. The arc-shaped structure with the opposite openings can well accommodate the spring with the circular cross section, and meanwhile, the movement of the brake iron sheet in the vertical direction is not limited.

The top of the central fixing seat is provided with a second interface, and the push rod injector is detachably connected with the second interface. The push rod injector can adopt a known common push rod structure injector, and comprises a push rod, a rubber plug and an injection barrel. It can be taken down from the second interface to facilitate the absorption of the anesthetic liquid.

And an interface plug is connected above each first interface through a soft rope. First interface equipartition is in the lateral wall of central fixing base, and its quantity is certain, but the quantity of using is optional, when certain needle body subassembly when not using, only needs to take off it from the slide rail, then with the interface stopper jam corresponding first interface can.

The top center of the slide rail is provided with a square opening B along the length direction, a fastening bolt penetrates through the square opening B, and the fastening bolt is in threaded connection with the top of the slide block. The shape and the size of the sliding groove in the sliding rail are the same as those of the sliding block, so that the sliding block can move in the sliding rail along the length direction of the sliding rail, one end of the fastening bolt is arranged above the square opening B, and the other end of the fastening bolt is downwards in threaded connection with the sliding block.

The invention has the following beneficial effects: (1) according to the invention, the positioning disc is arranged, so that the needle body assembly can be arranged on a plurality of position points of the positioning disc, so that various personalized choices can be provided for the positions of patients needing to prick the needle, and the number of the needle body assemblies can be selectively used, so that more choices are provided for users; (2) the needle inserting device is provided with the positioning ring, the positioning block, the positioning bulge and the inner ring, the positioning ring rotates on the outer side wall of the barrel to drive the positioning block to move up and down, the positioning block and the positioning bulge are matched to limit the position of the needle head, the needle head is not contacted completely, the long-term safe use of the whole device is ensured, and the adjustment of the depth of the needle inserting can be realized only by rotating the positioning ring, so that the needle inserting device is convenient and safe.

Drawings

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is an enlarged perspective view of the puck of FIG. 1;

FIG. 3 is an enlarged view of the structure of the slide rail of FIG. 1;

FIG. 4 is an enlarged front view of the needle assembly of FIG. 1;

FIG. 5 is an enlarged view of the combination of the syringe, needle, plunger tip and positioning boss of FIG. 4;

FIG. 6 is a schematic cross-sectional view of FIG. 4;

FIG. 7 is a schematic view in combination of the orientation ring and the orientation clip of FIG. 4;

in the figure: 1. the push rod injector 2, a positioning disk 21, a central fixing seat 211, a first interface 212, a second interface 213, an interface plug 22, a sliding rail 221, a fastening bolt 23, a fixed outer ring 3, a needle body component 31, a sliding block 32, a positioning structure 321, a component supporting plate 322, an electromagnetic coil 323, a spring 324, a moving iron sheet 325, a positioning boss 326, a left supporting plate 327, a right supporting plate 328, an inner cylinder 329, a supporting plate 3210, a positioning ring 3211, a positioning block 33, a needle cylinder 34 and a needle head.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 to 7, the high-efficiency anesthetic needle of the present invention comprises a push rod injector 1, a positioning plate 2 and a needle body assembly 3, wherein the positioning plate 2 comprises a plurality of slide rails 22, a fixed outer ring 23 and a central fixing seat 21 for connecting the push rod injector 1 and having a hollow structure, the central fixing seat 21 is disposed at the center of the fixed outer ring 23, a plurality of first connectors 211 are disposed on a peripheral side wall of the central fixing seat 21, the plurality of slide rails 22 are disposed between the central fixing seat 21 and the fixed outer ring 23 along a radial direction of the fixed outer ring 23, the needle body assembly 3 is disposed at a bottom of each slide rail 22, the needle body assembly 3 comprises a slide block 31, a positioning structure 32, a needle cylinder 33 and a needle head 34, the positioning structure 32 comprises an assembly supporting plate 321, an electromagnetic coil 322, two springs 323, a moving iron plate 324, a positioning boss 325, a left, The sliding block 31 is fixedly arranged at the top of the component supporting plate 321 and is matched with the sliding rail 31, the left side and the right side of the bottom of the component supporting plate 321 are respectively and vertically downwards fixedly provided with a left supporting plate 326 and a right supporting plate 327, an electromagnetic coil 322 and an inner cylinder 328 are arranged between the left supporting plate 326 and the right supporting plate 327, the top of the electromagnetic coil 322 is fixedly arranged at the bottom of the component supporting plate 321, the inner cylinder 328 is arranged below the electromagnetic coil 322, the bottom of the inner cylinder is fixedly connected with the bottoms of the left supporting plate and the right supporting plate through the supporting plate 329, the outer side wall of the inner cylinder 328 is provided with an external thread, the positioning ring 3210 is in threaded connection with the outer side wall of the inner cylinder 328, the left side wall and the right side wall of the inner cylinder 328 are both vertically provided with square openings A, and the two positioning blocks 3211 are sleeved on the positioning ring, the opposite sides of the two positioning blocks 3211 are extended outwards to form extension rods, the extension rods pass through the square openings a to reach the inside of the inner cylinder 328, the needle 34 is arranged at the bottom of the syringe 33 in a penetrating way, the syringe 33 is vertically and movably arranged in the inner cylinder 328, the top of the magnetic iron sheet is vertically and fixedly provided with a moving iron sheet 324, the periphery of the bottom of the magnetic iron sheet is provided with a positioning boss 325, the moving iron sheet 324 is arranged between an inner cylinder 328 and the electromagnetic coil 322, the left edge and the right edge of the positioning lug boss are attached to the inner side walls of the left support plate and the right support plate, a spring 323 is fixedly arranged between the movable iron sheet 324 and the supporting plate 329, the positioning lug boss 325 is arranged above the extension rod, the edge of the inner cylinder is attached to the inner side wall of the inner cylinder 328, the needle cylinder 33 is detachably connected with the first interface 211 through a hose, the distance between the top of moving iron piece 324 and the bottom of needle 34 is equal to the distance between the bottom of solenoid 322 and the bottom of plate 329.

Realizing multi-point anesthesia at any position:

the central holder 21 serves to collect the medical fluid in the push rod syringe 1 and dispense the medical fluid into the needle assembly 3 through the first plurality of ports 211. One end of the slide rail 22 is perpendicularly fixed on the outer side wall of the central fixing seat 21 for supporting the position of the needle body assembly 3, the needle body assembly 3 can be inserted into the position on the slide rail 22 according to the needs, and the plurality of needle body assemblies 3 can be enclosed into different shapes according to the needs of the state of an illness for multi-point anesthesia.

The depth of the needle insertion is adjustable:

the electromagnetic coil 322 may specifically include a coil, a battery, and a switch, each of which is connected to each other by an electric wire or disposed on a corresponding circuit board, all the structures are disposed at the bottom of the assembly support plate 321, the battery may be provided with a battery storage box, the switch may be of a button type or a toggle type, when the switch is closed, the coil is energized with magnetism, the movable iron piece 324 is attracted to the bottom of the electromagnetic coil 322, and the needle 34 is retracted above the support plate 329, so that when the support plate 329 is in contact with a human body, the human body is not pricked by the needle 34, when the switch is opened, no electricity is present in the coil, the movable iron piece 324 is moved downward by gravity and the pulling force of the spring 323, and the needle 34 is pricked into.

The positioning ring 3210 can move up and down on the outer side wall of the inner cylinder 328 by rotation, but because the extension rod is always positioned in the square opening a, the positioning block 3211 can only be sleeved on the positioning ring 3210 to move up and down along the square opening a, thereby realizing the position change of the extension rod on the inner cylinder 328; the extension rod is used for limiting the position of the needle body assembly 3 in the inner cylinder 328, the needle body assembly 3 can stably move up and down in the vertical direction because the movable iron sheet 324 is attached to the left support plate and the right support plate and the positioning boss 325 is attached to the inner cylinder 328, the spring 323 is arranged between the movable iron sheet 324 and the supporting plate 329, when the electromagnetic coil 322 is electrified, the movable iron sheet 324 can be upwards adsorbed, the whole needle body assembly 3 is upwards lifted, when the electromagnetic coil 322 is powered off and does not adsorb the movable iron sheet 324 any more, the movable iron sheet 324 is pulled downwards by the spring 323, the whole needle body assembly 3 moves downwards, the positioning boss 325 moves downwards in the inner cylinder 328, when the positioning boss 325 touches the extension rod, the downward movement is limited, and the length of the needle 34 exposed from the bottom of the supporting plate 329 can be controlled as required.

The cross sections of the left support plate 326 and the right support plate 327 are arc shapes with opposite openings, and the two springs 323 are respectively arranged in the arc bends of the left support plate 326 and the right support plate 327. The arc structure with the opposite openings can well accommodate the spring 323 with the circular cross section, and meanwhile, the movement of the brake iron sheet 324 in the vertical direction is not limited.

The top of the central fixing seat 21 is provided with a second interface 212, and the push rod injector 1 is detachably connected with the second interface 212. The push-rod injector 1 can adopt a known common push-rod structure injector, and comprises a push rod, a rubber plug and an injection barrel. Which can be removed from the second port 212 to facilitate the aspiration of the anesthetic solution.

An interface plug 213 is connected to the upper side of each first interface 211 through a flexible rope. First interface 211 equipartition is in the lateral wall of central fixing base 21, and its quantity is certain, but the quantity of using is optional, when not using when certain needle body subassembly 3, only need take off it from slide rail 22, then plug up corresponding first interface 211 with interface stopper 213 can.

The top center of the slide rail 22 is provided with a square opening B along the length direction thereof, a fastening bolt 221 penetrates through the square opening B, and the fastening bolt 221 is in threaded connection with the top of the slide block 31. The shape and size of the sliding slot in the slide rail 22 are the same as those of the slider 31, so that the slider 31 can move in the slide rail 22 along the length direction of the slide rail 22, one end of the fastening bolt 221 is disposed above the square opening B, and the other end is screwed downward to the slider 31, and when the fastening bolt 221 is tightened, the slider 31 can be fixed on the slide rail 22.

The specific using process is as follows: selecting the number of the needle body components 3 to be used according to the disease condition and the position of the needle insertion, arranging the needle body components on a proper sliding rail 22, adjusting the position of each needle body component 3 on the sliding rail 22, fixing the needle body components through a fastening bolt 221, connecting each needle cylinder 33 to the first interface 211 through a hose, blocking the unused first interface 211 through an interface plug 213, rotating the position of a positioning ring 3210 on an inner cylinder 328 according to the depth of the needle insertion required, sucking anesthetic liquid medicine by the push rod injector 1, installing the anesthetic liquid medicine on the second interface 212, pushing the push rod injector 1 to enable the liquid medicine to flow out from the needle head 34, enabling the electromagnetic coil 322 to be electrified, enabling the needle head 34 to be put above the supporting plate 329, then placing the whole supporting plate 329 at the position where the needle insertion is required, disconnecting the power supply of the electromagnetic coil 322, enabling the needle head 34 to be shot into the skin of a human body, pushing the push, to accurately inject the dose.

The above description is an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications, equivalents, and flow changes made by using the contents of the present specification and drawings, or applied directly or indirectly to other related technical fields are included in the scope of the present invention.

Claims

1. A high-efficiency anesthetic needle is characterized in that: the needle body component comprises a slide block, a positioning structure, a needle cylinder and a needle head, wherein the positioning structure comprises a component supporting plate, an electromagnetic coil, two springs, a movable iron sheet, a positioning boss, a left supporting plate, a right supporting plate, an inner cylinder, a supporting plate, a positioning ring and two positioning blocks, the slide block is fixedly arranged at the top of the component supporting plate and matched with the slide rail, the left side and the right side of the bottom of the component supporting plate are respectively and vertically and downwards fixedly provided with the left supporting plate and the right supporting plate, an electromagnetic coil and an inner tube are arranged between the left supporting plate and the right supporting plate, the top of the electromagnetic coil is fixedly arranged at the bottom of the component supporting plate, the inner tube is arranged below the electromagnetic coil, the bottom of the inner tube is fixedly connected with the bottoms of the left supporting plate and the right supporting plate through a supporting plate, the outer side wall of the inner tube is provided with an external thread, the positioning ring is in threaded connection with the outer side wall of the inner tube, the left side wall and the right side wall of the inner tube are vertically provided with square openings A, the two positioning blocks are sleeved on the positioning ring and are respectively positioned at the square openings A at the two sides of the inner tube, one opposite sides of the two positioning blocks are respectively extended outwards to form extension rods, the extension rods penetrate through the square openings A to reach the inside of the inner tube, the needle head is arranged at, its bottom periphery is provided with the location boss, move the iron sheet and set up between inner tube and solenoid, its left and right sides border and the inboard wall of left and right backup pad laminate mutually, it is provided with the spring to move fixedly between iron sheet and the layer board, the location boss sets up in the top of extension rod, and its border laminates mutually with the inboard wall of inner tube, the cylinder passes through the hose and can dismantle with first interface and be connected, move the distance between the top of iron sheet to the bottom of syringe needle and equal the distance between solenoid's bottom to the bottom of layer board.

2. The high-efficiency anesthetic needle according to claim 1, characterized in that: the cross section of left branch fagging and right branch fagging is the arc that the opening is relative, two springs set up respectively in the arc of left branch fagging and right branch fagging is buckled.

3. The high-efficiency anesthetic needle according to claim 1, characterized in that: the top of the central fixing seat is provided with a second interface, and the push rod injector is detachably connected with the second interface.

4. The high efficiency anesthetic needle according to claim 1 or 3, characterized in that: and an interface plug is connected above each first interface through a soft rope.

5. The high-efficiency anesthetic needle according to claim 1, characterized in that: the top center of the slide rail is provided with a square opening B along the length direction, a fastening bolt penetrates through the square opening B, and the fastening bolt is in threaded connection with the top of the slide block.