CN111514449B

CN111514449B - Medical surgical hand sterilizer convenient to eliminate disinfection dead angle

Info

Publication number: CN111514449B
Application number: CN202010484631.0A
Authority: CN
Inventors: 张向超; 高晓乐; 李小珍
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2022-03-01
Anticipated expiration: 2040-06-01
Also published as: CN111514449A

Abstract

The invention relates to the field of medical surgical equipment, in particular to a medical surgical hand sterilizer convenient for eliminating dead angles of sterilization. Comprises a shell with a disinfection cavity, wherein an auxiliary disinfection device for a paronychia, an auxiliary disinfection device for finger webs and an auxiliary disinfection device for knuckle folds are arranged in the disinfection cavity; the auxiliary sterilizing device for the nail groove is provided with a plurality of first revolving bodies, first bristles are uniformly distributed on the revolving surfaces of the first revolving bodies, and the first bristles are used for brushing the disinfectant stained on the first bristles into the nail groove in the process of rotating along with the first revolving bodies; the finger web auxiliary disinfection device is provided with a plurality of second revolving bodies distributed at the positions corresponding to the finger webs, second bristles are uniformly distributed on the revolving surface of each second revolving body, and the second bristles are used for brushing the disinfectant stained on the second bristles into the finger webs in the process of rotating along with the second revolving bodies. The invention can remove or kill bacteria aiming at the dead angle of hand disinfection, and reduces the cross infection of patients caused by doctors in surgical diagnosis or operation.

Description

Medical surgical hand sterilizer convenient to eliminate disinfection dead angle

Technical Field

The invention relates to the field of medical surgical equipment, in particular to a medical surgical hand sterilizer convenient for eliminating dead angles of sterilization.

Background

The hand sterilizer is widely used in hospitals, scientific research, pharmaceutical enterprises, food processing and other units, and is mainly used for sterilizing hands to ensure sanitation. In the health care system, hospital infections caused by the transmission of bacteria by the hands of medical personnel account for approximately 30% of the total number of nosocomial infections in patients. Hand hygiene is the most fundamental link for controlling nosocomial infections and has great significance for controlling nosocomial infections. Therefore, the compliance of hand washing behavior is improved, and the transmission path is cut off, so that the method is an important measure for controlling nosocomial infection. Especially, before surgical operation, medical care personnel often need to thoroughly sterilize through a hand sterilizer, so as to avoid infection to patients as much as possible. In the preoperative hand treatment, firstly, the hand is decontaminated by using soap or liquid soap and running water, and the dirt and most of the transient bacteria on the hand are removed. After decontamination treatment, the hands are stretched into the hand sterilizer, and are sterilized by mist alcohol or other disinfectants sprayed out by a nozzle in a sterilizing cavity inside the hand sterilizer to eliminate or kill the temporary bacteria of the hands and reduce the frequently living bacteria, and after sterilization, the hands are dried by a fan and a heating pipe in the sterilizing cavity to finish sterilization.

Although the disinfectant atomization spraying mode of the hand sterilizer has a good bacterial disinfection effect on the back of the palm, the disinfectant atomization spraying mode has a disinfection dead angle which is difficult to cover by some disinfectants. The disinfection dead angles are gaps among finger gaps and finger web positions and folds on two sides of finger joints, and each disinfection dead angle or hidden or folded is not easy to contact with a disinfectant, so that the disinfectant is not easy to kill and still has larger risk of hidden infection.

Disclosure of Invention

The invention aims to provide a medical surgical hand sterilizer which is convenient to eliminate dead angles of sterilization, in particular to carry out bacteria removal or killing on the dead angles of hand sterilization, and reduce cross infection of doctors to patients in surgical diagnosis or operation.

In order to solve the technical problems, the invention adopts the following technical scheme:

a medical surgical hand sterilizer convenient for eliminating dead angles of sterilization comprises a shell with a sterilization cavity, wherein a sterilization port for hands to extend into the sterilization cavity is arranged on the side part of the shell, and a plurality of nozzles capable of spraying mist disinfectant into the sterilization cavity are respectively arranged on the upper side and the lower side of the sterilization cavity in the shell;

an auxiliary paronychia disinfection device, an auxiliary webbed finger disinfection device and an auxiliary knuckle crease disinfection device are arranged in the disinfection cavity; the auxiliary disinfection device for the nail groove is provided with a plurality of first revolving bodies distributed at the positions corresponding to the nail groove, first bristles are uniformly distributed on the revolving surface of each first revolving body, and the first bristles are used for brushing the disinfectant stained on the first bristles into the nail groove in the process of rotating along with the first revolving bodies; the webbed-finger auxiliary disinfection device is provided with a plurality of second revolving bodies distributed at the positions corresponding to the webbed fingers, second bristles are uniformly distributed on the revolving surface of each second revolving body, and the second bristles are used for brushing the disinfectant stained on the second bristles into the webbed fingers in the process of rotating along with the second revolving bodies; the joint fold auxiliary disinfection device is used for teaching hands to sequentially carry out holding and opening actions or teaching hands to sequentially carry out opening and holding actions so as to open the back folds of the knuckle in the holding action and carry out spray disinfection by an upper nozzle, and the back folds of the knuckle in the opening action are opened and carry out spray disinfection by a lower nozzle.

As a further optimization of the invention, the sterilizing cavity is provided with an auxiliary sterilizing base part for arranging an auxiliary sterilizing device for the paronychia and an auxiliary sterilizing device for the finger web; the second revolving bodies are driven to rotate by corresponding second motors, the second motors are fixed on the auxiliary disinfection base at intervals, and a positioning mechanism for enabling hands to be in contact fit with the auxiliary disinfection base is formed by the second revolving bodies fixed by the second motors; the first rotary body is driven to rotate by the corresponding first motor, a strip-shaped hole for the first motor to slide is formed in the auxiliary disinfection base, and the auxiliary disinfection device for the first ditch further comprises a finger length self-adjusting mechanism for driving the first motor to slide along the strip-shaped hole so that bristles on the first rotary body are in tight contact with the position of the first ditch positioned by the positioning mechanism.

As a further optimization of the invention, the auxiliary disinfection base is a flat plate fixed in the disinfection cavity, the second motor is fixed on the lower side plate surface of the auxiliary disinfection base, a hole for exposing the upper end of the second revolving body is formed on the plate surface of the auxiliary disinfection base in a penetrating manner, and a strip-shaped hole is formed in the thickness direction of the plate surface of the auxiliary disinfection base in a penetrating manner; the finger length self-adjusting mechanism is a spring which is arranged in the strip-shaped hole and is positioned in the sliding direction of the first motor, and when a hand is in contact fit with the auxiliary disinfection base part through the positioning mechanism, the nail groove part of the hand pushes the first motor to slide along the sliding groove and compress the spring.

As a further optimization of the invention, the auxiliary disinfection base is cylindrical, the strip-shaped holes penetrate through the peripheral wall of the auxiliary disinfection base and are distributed, the second motor is fixed on the inner wall of the auxiliary disinfection base, and the auxiliary disinfection base is provided with a hole for exposing the upper end of the second revolving body in a penetrating way; indicate long self-regulating structure including set up in the third motor of supplementary disinfection basal portion tip position and connect on the third motor output shaft and follow the logical axle of supplementary disinfection basal portion axial distribution, lead to epaxial spacer sleeve and be equipped with a plurality of swivels, the quantity of swivel links to each other with first motor unanimous and one-to-one, the inner edge of swivel still is equipped with and leads to a friction fit's damping to glue.

As a further optimization of the invention, a first motor corresponding to a thumb is rotatably sleeved on a single shaft through a rotating ring and damping rubber, the single shaft is rotatably arranged in the auxiliary disinfection base and is distributed in parallel with the through shaft, the single shaft and the through shaft are respectively provided with a first gear, and the two first gears are meshed and connected to drive the single shaft to synchronously and reversely rotate through the through shaft.

As a further optimization of the invention, the joint fold auxiliary disinfection device comprises a cylindrical auxiliary disinfection base and a driving mechanism for driving the auxiliary disinfection base to move towards the direction opposite to the disinfection opening, the circular arc-shaped outer wall of the auxiliary disinfection base can be used for teaching the hand to hold, and the auxiliary disinfection base can teach fingers to open to complete the opening action of the hand in the process of moving towards the direction opposite to the disinfection opening under the action of the driving mechanism.

As a further optimization of the invention, the end part of the auxiliary disinfection base is provided with a rectangular sliding block, a shaft seat for the through shaft to be in running fit is arranged in the rectangular sliding block, and a rectangular guide groove for the rectangular sliding block to be in sliding fit is correspondingly arranged in the shell; the driving mechanism comprises a third motor, a second gear arranged on an output shaft of the third motor and a rack meshed with the second gear, wherein the rack is fixed in the shell and is parallel to the rectangular guide groove, the second gear comprises an inner ring fixed on the output shaft of the third motor and an outer ring rotationally matched at the peripheral position of the inner ring, a plurality of wedge-shaped grooves are arranged at the peripheral position of the inner ring at intervals, and pin columns which can be matched with the wedge-shaped grooves and the inner wall of the outer ring to enable the outer ring to rotate only in a single direction are arranged in the wedge-shaped grooves.

As a further optimization of the invention, the rectangular guide grooves are distributed obliquely upwards at the end opposite to the disinfection opening.

As a further optimization of the invention, a first travel switch is arranged at the position of one end, close to the disinfection port, of the rectangular guide groove, a second travel switch is arranged at the position of one end, far away from the disinfection port, of the rectangular guide groove, the first travel switch and the second travel switch are in signal connection with the single chip microcomputer, a disinfection program is arranged in the single chip microcomputer, the first motor, the second motor, the third motor and the nozzle positioned at the upper part of the disinfection cavity are started and delayed to be closed after the first travel switch is in contact with the rectangular sliding block by the disinfection program, the third motor is synchronously started to rotate reversely and the nozzle positioned at the lower part of the disinfection cavity is started after the first motor, the second motor, the third motor and the nozzle positioned at the upper part of the disinfection cavity are closed, and the second travel switch is closed after being in contact with the rectangular sliding block and the lower nozzle is delayed to be closed.

As a further optimization of the invention, a fan and a heating pipe are also arranged in the disinfection cavity, and the fan and the heating pipe are started and closed in a delayed manner after a disinfection program in the single chip microcomputer controls the lower nozzle to be closed in a delayed manner.

The sterilizing cavity is internally provided with an auxiliary sterilizing device for the paronychia, an auxiliary sterilizing device for the webbed fingers and an auxiliary sterilizing device for the knuckle folds. The auxiliary sterilizing device for the paronychia and the auxiliary sterilizing device for the finger webs are both provided with a revolving body which can rotate at a high speed, and bristles are uniformly distributed on the revolving surface of the revolving body. The brush hair can be brushed into the corresponding nail groove and finger web position after being stained with the mist disinfectant, so that the nail groove and the finger web position can be fully contacted with the disinfectant, and the effect of killing bacteria in the nail groove and the finger web position is improved. The joint fold auxiliary disinfection device can teach the hand to sequentially hold and open or teach the hand to sequentially open and hold so as to open the back folds of the finger joints in the holding action and open the inner folds of the finger joints in the opening action so as to receive the mist disinfectant sprayed by the nozzle in the opened state inside the folds, thereby improving the bacteria killing effect at the fold positions of the finger joints. The invention solves the problem of dead angle of disinfection easily generated in the existing hand disinfector by the auxiliary disinfection device for the paronychia, the auxiliary disinfection device for the webbed and the auxiliary disinfection device for the knuckle fold, is beneficial to reducing hospital infection caused by bacteria spread by hands of medical staff, and further reduces cross infection rate in hospital of patients.

In a preferred embodiment, the invention has a secondary disinfection base for carrying a paronychia secondary disinfection device, a webbed finger secondary disinfection device. The second rotary body in the finger web auxiliary sterilizing device is fixedly distributed on the auxiliary sterilizing base part and forms a positioning mechanism. The positioning mechanism forms a compliance with the hand behavior to be disinfected by the invention. The first rotary body in the auxiliary disinfection device for the paronychia is distributed on the auxiliary disinfection base part in a sliding mode based on the positioning mechanism, and forms a finger length self-adjusting mechanism through a preferred spring and a driving shaft in a friction fit mode or other modes, so that the first rotary body can be always in close contact with the position of the paronychia on the hand, the auxiliary disinfection device for the paronychia can be self-adaptive to the hands with different finger lengths, and the applicability of the auxiliary disinfection device for the paronychia is greatly improved.

The finger joint fold auxiliary sterilizing device of the invention preferably consists of a cylindrical auxiliary sterilizing base and a driving mechanism for controlling the reciprocating movement of the auxiliary sterilizing base. The cylindrical outer wall of the auxiliary disinfecting base is used for teaching hand holding, and the movement of the auxiliary disinfecting base away from the disinfecting opening under the action of the driving mechanism teaches hand opening. The teaching process is simple and direct, the disinfection effect is good, the compliance of the hand disinfection treatment can be quickly formed by medical workers, and the high-efficiency consistency of the hand disinfection process in the daily work of the medical workers can be maintained.

The driving mechanism and the finger length self-adjusting mechanism share one third motor for driving, and through the combination of a plurality of related technical characteristics such as strip-shaped holes with closed two ends, damping glue, a second gear capable of rotating only in one direction and the like, the driving mechanism and the finger length self-adjusting mechanism are not interfered with each other and generate a synergistic effect, so that the power loss is reduced, the space occupied by a driving element is controlled, and the finger length self-adjusting mechanism is beneficial to miniaturization and intellectualization.

In a preferred embodiment of the invention, travel switches are respectively arranged at two ends of a rectangular guide groove for the reciprocating sliding displacement of the auxiliary disinfection base, and the travel switches are connected with the single chip microcomputer and store disinfection programs in the single chip microcomputer. So that the medical staff can complete the disinfection of the corresponding position of the hand through the auxiliary disinfection device of the paronychia and the auxiliary disinfection device of the finger web only by stretching the hand into the disinfection cavity to hold the auxiliary disinfection base part and pulling down the auxiliary disinfection base part to the position close to the disinfection opening in the hand disinfection process. Then the auxiliary disinfection base is driven by the driving mechanism to automatically slide away, and the teaching alternation of hand holding and unfolding actions is completed. The automatic disinfection device has high degree of automatic linkage of each device mechanism, is extremely simple in disinfection action of medical workers, has high acceptance of users, and can further improve the compliance of the medical workers in disinfection through the automatic disinfection device, thereby further improving the high-efficiency consistency of daily disinfection of the medical workers.

Drawings

FIG. 1 is a schematic cross-sectional view of the initial state of the present invention;

FIG. 2 is a schematic view of FIG. 1 in a state of entering a sterilization procedure;

FIG. 3 is a schematic view of an intermediate state of FIGS. 2-1;

FIG. 4 is a top view of one embodiment of the supplemental sanitizing base and the supplemental sanitizing device for the paronychia and web thereon of the present invention;

FIG. 5 is a schematic perspective view from one perspective of a second embodiment of the supplemental sanitizing base and the supplemental sanitizing device for the paronychia and web thereon of the present invention;

FIG. 6 is a schematic perspective view of a second embodiment of the supplemental sanitizing base and the supplemental sanitizing device for the paronychia and web thereon of the present invention;

FIG. 7 is a schematic perspective view of the auxiliary disinfecting base and the auxiliary disinfecting device for the paronychia and the web thereon in a third perspective view according to the second embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a second embodiment of the auxiliary disinfecting base and the auxiliary disinfecting device for the paronychia and the auxiliary disinfecting device for the finger webs thereon according to the present invention;

FIG. 9 is a schematic illustration of the gearing relationship between the through-shaft and the single-shaft of FIG. 8;

FIG. 10 is a schematic view of the second gear of FIGS. 5-7;

FIG. 11 is a schematic perspective view from one perspective of a third embodiment of the auxiliary disinfecting base and the supplemental paronychia disinfecting device and web disinfecting device thereon according to the present invention;

FIG. 12 is a schematic perspective view of a third embodiment of the auxiliary disinfecting base and the supplemental paronychia disinfecting device and web thereon of the present invention from a second perspective;

FIG. 13 is a schematic perspective view of a third embodiment of the auxiliary disinfecting base and the supplemental paronychia disinfecting device and web disinfecting device thereon according to the present invention from a third perspective;

the labels in the figure are: 1. the device comprises a nozzle, 2, a shell, 3, a disinfection cavity, 4, an auxiliary disinfection base, 5, a rectangular sliding block, 6, a rack, 7, a rectangular guide groove, 8, a disinfection opening, 9, a first travel switch, 10, a second travel switch, 11, a first motor, 12, a strip-shaped hole, 13, a first revolving body, 14, a first gear, 15, a single shaft, 16, damping glue, 17, a revolving ring, 18, a through shaft, 19, a second revolving body, 20, a second motor, 21, a third motor, 22, a second gear, 23, a spring, 24, an outer ring, 25, a pin column, 26, a wedge-shaped groove, 27 and an inner ring.

Detailed Description

As shown in fig. 1 to 3, the medical surgical hand sterilizer convenient for eliminating dead corners of sterilization according to the present invention, like the conventional hand sterilizer of the prior art, includes a housing 2 having a sterilization chamber 3, one side of the housing 2 is wall-mountable on a wall, and the other side is provided with a sterilization port 8 through which a user's hand is inserted into the sterilization chamber 3. A plurality of nozzles 1 which can spray atomized alcohol or other disinfectants into the disinfection cavity 3 are respectively arranged on the upper side and the lower side of the disinfection cavity 3 in the shell 2. Unlike the conventional hand sterilizer, the present invention provides an auxiliary sterilizing base 4 in the sterilizing chamber 3. On one hand, the auxiliary disinfection base part 4 is provided with an auxiliary disinfection device for the paronychia and an auxiliary disinfection device for the webbed fingers, and is used for disinfecting auxiliary disinfectants for the paronychia and the webbed fingers; on the other hand, the two ends of the auxiliary disinfection base 4 are arranged in the rectangular guide grooves 7 arranged on the inner wall of the shell 2 in a sliding mode, and the teaching of holding and opening actions of hands can be completed in the sliding process of the auxiliary disinfection base 4 along the rectangular guide grooves 7, so that the finger joint fold auxiliary disinfection device capable of performing auxiliary disinfection corresponding to fold positions on two sides of a finger joint is formed.

The auxiliary disinfecting base 4, the gutter auxiliary disinfecting device and the webbed auxiliary disinfecting device on the auxiliary disinfecting base 4, and the driving mechanism for driving the auxiliary disinfecting base 4 along the rectangular guide groove 7 in the present application will be explained below by three embodiments.

The first embodiment is as follows:

as shown in fig. 5 to 7, the subsidiary sterilising base 4 in this embodiment is cylindrical with both ends closed. In fig. 7, three holes are arranged on the right side (corresponding to the side of the disinfection opening 8) of the auxiliary disinfection base part 4 close to the top position corresponding to three finger webs of a single hand except a tiger's mouth, and a rotatable second revolving body 19 is arranged in the holes; four bar holes 12 are opened near the four fingers except the thumb on the corresponding one-hand of top position on the left side of supplementary disinfection basal portion 4, and a bar hole 12 is opened near the corresponding one-hand thumb of bottom position on the left side of supplementary disinfection basal portion 4, all is equipped with rotatable and can follow the gliding first revolution solid 13 of bar hole 12 length direction in the bar hole 12. The first and second brush staples are provided on the surfaces of revolution of the first and second revolving

bodies

13 and 19, respectively. The first brush hair rotates at a high speed under the driving action of a first motor 11 fixed on the inner wall of the auxiliary disinfection base part 4, and the disinfectant stained on the first brush hair is brushed into the corresponding nail groove. The second brush hairs are driven by the second motor 20 to rotate at a high speed, so that the disinfectant stained on the second brush hairs is brushed into the corresponding web gap folds.

Since the three second rotary bodies 19 are fixed in position on the auxiliary disinfecting base 4, the three second rotary bodies 19 can form a positioning mechanism in which one hand is in contact fit with the auxiliary disinfecting base 4 in addition to the disinfection of the finger web position by matching the atomized disinfectant sprayed from the nozzle 1. The contact fit of the single hand and the auxiliary disinfection base 4 in the embodiment is a holding type, and the thumb and the rest four fingers in the holding are arranged in a non-parallel way and form an included angle of approximately 180 degrees, so that the hand is closer to the natural holding state. In this state, the tiger's mouth between the thumb and the index finger is largely opened, and the atomized disinfectant sprayed from the nozzle 1 can be well contacted, and the second rotary body 19 alone is not provided for passive disinfectant brushing-in disinfection. Meanwhile, in a holding state positioned by the positioning mechanism, the five fingers respectively correspond to the five strip-shaped holes 12, the first revolving bodies 13 respectively move towards the position of the paronychia of the five fingers and contact the position under the action of the finger length self-adjusting mechanism, and the paronychia is disinfected through the first bristles.

As shown in fig. 8 and 9, the finger length self-adjusting mechanism includes a through-shaft 18 and a single shaft 15 rotatably disposed in the inner cavity of the auxiliary sterilizing base 4. The through shafts 18 and the single shaft 15 are arranged along the axial direction of the auxiliary sterilizing base 4 and are spaced apart from each other in parallel. The end of the through shaft 18 is connected to an output shaft of a third motor 21, and the third motor 21 is fixed at the end position of the auxiliary sterilizing base 4 to drive the through shaft 18 to rotate by the third motor 21. The through shaft 18 and the single shaft 15 are respectively provided with a first gear 14 which is meshed with each other, so that the single shaft 15 is driven to synchronously rotate in the opposite direction through the through shaft 18. A rotating ring 17 is arranged on the single shaft 15, and the rotating ring 17 is fixed with the first motor 11 corresponding to the thumb; four rotating rings 17 are arranged on the through shaft 18, and the four rotating rings 17 are respectively fixed with the first motors 11 corresponding to the four fingers. All be equipped with the damping and glue 16 layers between swivel 17 and the corresponding axle, 16 layers of damping are glued and are made swivel 17 and correspond and form interference fit between the axle, make the corresponding axle can drive swivel 17 by the frictional force of damping glue 17 and rotate to make swivel 17 and correspond the relative rotation between the axle after rotational resistance overcomes frictional force. Fig. 8 shows an initial state of the first rotation body 13, and the output shaft of the third motor 21 is rotated in the clockwise direction during the sterilization process. At this time, the first rotor 13 corresponding to the thumb rotates counterclockwise, and resistance is generated after the first rotor contacts the nail groove of the thumb, so that the corresponding rotor 17 slips on the single shaft 15, and the first rotor 13 is held pressed against the nail groove of the thumb. Meanwhile, the four first rotary bodies 13 corresponding to the other four fingers rotate clockwise, and respectively generate rotation resistance after respectively contacting with the corresponding first grooves, so that the corresponding rotary rings 17 respectively slide and rotate on the through shafts 18, and the four first rotary bodies 13 are kept to be tightly pressed at the first grooves corresponding to the cutting torch.

The joint fold auxiliary sterilizing device in the present embodiment is the auxiliary sterilizing base 4 itself and a driving mechanism for driving the auxiliary sterilizing base 4 to slide back and forth along the rectangular guide groove 7. The center positions of the two ends of the auxiliary disinfection base part 4 are respectively provided with a rectangular sliding block 5 which is in sliding fit with the rectangular guide groove 7, and the rectangular sliding block 5 is internally provided with a shaft seat for the through shaft 18 to be in running fit. The arc-shaped outer wall of the auxiliary disinfection base part 4 can be used for teaching a hand to hold, and the auxiliary disinfection base part 4 can teach fingers to open to complete the opening action of the hand in the process of moving towards the direction opposite to the disinfection opening 8 under the action of the driving mechanism.

The drive mechanism includes the third motor 21, the second gear 22, and the rack 6. As shown in fig. 1 to 3, the rack gears 6 are fixed in the housing 2 and are distributed in parallel at positions below the rectangular guide grooves 7. The second gear 22 is arranged on the output shaft of the third motor 21 in a matching way and is meshed with the rack 6. As shown in fig. 10, the second gear 22 includes an inner ring 27 and an outer ring 24 that is rotationally fitted at an outer circumferential position of the inner ring 27. The outer edge of the outer ring 24 is provided with teeth meshed with the rack 6, the inner periphery of the inner ring 27 is connected with the output shaft of the third motor 21 through a flat key, a plurality of wedge-shaped grooves 26 are formed in the outer edge of the inner ring 27 at intervals, and pins 25 are respectively arranged in the wedge-shaped grooves 26. During the clockwise rotation of the output shaft of the third motor 21 to adapt to the finger length of different users through the finger length self-adjusting mechanism, the inner ring 27 rotates clockwise along with the output shaft of the third motor 21, the pin 25 is located at the large end of the wedge-shaped groove 26, so that the outer ring 24 and the inner ring 27 are separated from each other and the outer ring 24 is stationary, and the teeth on the outer ring 24 do not produce relative displacement with the rack 6, thereby not influencing the normal adjustment of the finger length self-adjustment. After the auxiliary sterilizing device for the nail groove completes the sterilizing effect, the output shaft of the third motor 21 rotates anticlockwise to drive all the first revolving bodies 13 to slide along the strip-shaped holes 12 and keep away from the corresponding nail groove to reach the initial position, and the inner ring 27 rotates anticlockwise synchronously along with the output shaft of the third motor 21. The pin 25 moves to the small end position of the wedge groove 26 at this time, and the inner ring 27 and the outer ring 24 are integrated, so that the outer ring 24 is driven to move counterclockwise synchronously. The teeth on the outer ring 24 cooperate with the toothed rack 6 to drive the auxiliary sterilising base 4 along the rectangular channel 7 in a direction away from the sterilisation aperture 8.

The rectangular guide grooves 7 in the embodiment are distributed obliquely upwards at the end opposite to the disinfection opening 8, so that the auxiliary disinfection base 4 slides along an obliquely upward track under the condition that the hand of a user flatly holds the auxiliary disinfection base 4, the forced opening effect of fingers is better facilitated, and the opening action of the hand is ensured to be completed.

The position of the rectangular guide groove 7 close to one end of the disinfection port 8 is provided with a first travel switch 9, the position far away from one end of the disinfection port 8 is provided with a second travel switch 10, the first travel switch 9 and the second travel switch 10 are in signal connection with a single chip microcomputer, and a disinfection program is arranged in the single chip microcomputer. The disinfection program enables the first travel switch 9 to be in contact with the rectangular sliding block 5, then the first motor 11, the second motor 20, the third motor 21 and the nozzle 1 positioned at the upper part of the disinfection cavity 3 are started and delayed to be closed, after the first motor 11, the second motor 20, the third motor 21 and the nozzle 1 positioned at the upper part of the disinfection cavity 3 are closed, then the third motor 21 is synchronously started to rotate reversely and the nozzle 1 positioned at the lower part of the disinfection cavity 3 are started, and after the second travel switch 10 is in contact with the rectangular sliding block 5, the third motor 21 is closed, and the delayed closing of the lower nozzle 1 is maintained. A fan and a heating pipe are also arranged in the disinfection cavity 3, and the fan and the heating pipe are started after the disinfection program in the single chip microcomputer controls the lower nozzle 1 to be closed in a delayed mode, so that the fan and the heating pipe are closed in a delayed mode.

The application process of this embodiment is as follows:

in the initial state of the whole machine shown in fig. 1, a user puts both hands into the sterilization chamber 3 through the sterilization port 8 and holds the auxiliary sterilization base 4, and the user holds and positions the auxiliary sterilization base 4 through the three second rotators 19 corresponding to one hand. The upper end or the whole of the housing 2 can be made of transparent material so that the user can visually observe the position of the second rotator 19 and hold and position the second rotator. The user pulls the auxiliary disinfecting base 4 to the lower right along the rectangular guide groove 7 after holding positioning to the state shown in fig. 2. At the moment, the rectangular sliding block 5 is in contact with the first travel switch 9, the first travel switch 9 sends an in-place signal to the single chip microcomputer, and the single chip microcomputer starts the first motor 11, the second motor 20, the third motor 21 and the nozzle 1 positioned at the upper part of the disinfection cavity 3. After the second motor 20 is started, the disinfectant stained on the second revolving body 19 is collected into the web position by the brush hair on the second revolving body. After the third motor 21 starts the forward rotation mode, that is, under the action of the finger length self-adjusting mechanism, each first rotating body 13 is pressed tightly at the corresponding position of the nail groove, and the first bristles are matched with the rotation output of the first motor 11 to brush the disinfectant stained on the first bristles into the nail groove. The upper nozzle 1 sprays atomized disinfectant to disinfect the hand back including the fold position at the dorsal side of the finger joint by spraying.

The forward rotation mode of the first motor 11, the second motor 20 and the third motor 21 and the nozzle 1 at the upper part of the disinfection chamber 3 are closed with a delay after 10-15 seconds after being started. The reverse rotation of the third motor 21 and the nozzle 1 located in the lower part of the chamber 3 are then simultaneously activated. After the third motor 21 rotates reversely, on one hand, all the first revolving bodies 13 are driven to return to the initial state along the corresponding strip-shaped holes 12, and the end parts of the strip-shaped holes 12 generate resistance to acting force generated by the first revolving bodies 13 so as to overcome the friction force of the damping rubber 16, so that the relative rotation between each revolving ring 17 and the corresponding shaft is generated to a slipping state; and on the other hand, the second gear 22 is combined inside by the overturning of the third motor 21 to rotate along the counterclockwise direction synchronously with the output shaft of the third motor 21, and the auxiliary disinfection base 4 is driven to slide towards the upper left along the rectangular guide groove 7 under the meshing action of the rack 6 as shown in fig. 3. The auxiliary disinfecting base 4 in the sliding process completes the teaching of the opening action of the hand, the inner side of the knuckle is unfolded, and the mist disinfectant sprayed by the lower nozzle 1 is sprayed for disinfection.

Finally, after the auxiliary disinfecting base 4 is slid to the state shown in fig. 1, the rectangular slider 5 is brought into contact with the second stroke switch 10. The singlechip controls the third motor 21 to stop and controls the lower nozzle 1 to be closed in a delay way after 7-10 seconds. And after the lower nozzle 1 is delayed and closed, the fan and the heating pipe are started, and the lower nozzle is delayed and closed for 15-20 seconds. And (5) drying the disinfected hands by hot air. The hot air drying process is a conventional technique in the art and will not be described herein. At which point the invention returns again to the initial state as shown in figure 1.

Example two:

this embodiment is substantially the same as the first embodiment except that the cylindrical auxiliary disinfecting base 4 of this embodiment is provided for holding the hands as shown in fig. 11 to 13. As shown in fig. 13, four holes are formed in the right side (the side corresponding to the sterilization port 8) of the auxiliary sterilization base 4, and a rotatable second rotator 19 is provided in the holes. Four bar holes 12 have been seted up to the corresponding four fingers except the thumb on the one hand in 4 left side positions of supplementary disinfection basal portion, have seted up one bar hole 12 at 4 top positions of supplementary disinfection basal portion corresponding one hand thumb, all are equipped with rotatable and can follow the gliding first revolution body 13 of bar hole 12 length direction in the bar hole 12.

In the present embodiment, the four second rotators 19 provide the same hand holding posture with the same five-finger orientation. Correspondingly, the length self-adjusting mechanism only needs to slide the five first rotators 13 along the corresponding strip-shaped holes 12 in the same direction. Therefore, in this embodiment, the single shaft 15 is not provided, and the rotating rings 17 corresponding to the five first rotators 13 are all sleeved on the through shaft 18 through the damping rubber 16.

In this embodiment, the overall structure principle and the disinfection process are the same as those of the first embodiment except that the above-mentioned nail groove auxiliary disinfection device and finger length self-adjusting mechanism are slightly different from those of the first embodiment, and the disinfection process can refer to the first embodiment and will not be described again. On the basis of the technical effect achieved by the first embodiment, the arrangement of the single shaft 15 is reduced, so that the whole mechanical transmission is simpler and more reliable, but the holding posture can be developed for the user to get a correct holding posture habit only through learning.

Example three:

the present embodiment focuses on the constructive form of the auxiliary sterilising base 4, which differs from the first and second embodiments, in order to show a plurality of different embodiments without departing from the basic inventive concept of the present invention.

The auxiliary sterile base 4 in this embodiment is a flat plate fixed in the sterile chamber 3. The second motor 20 is fixed to the lower plate surface of the auxiliary sterilization base 4, a hole for exposing the upper end of the second rotator 19 is formed through the plate surface of the auxiliary sterilization base 4, and the strip-shaped hole 12 is formed through the plate surface of the auxiliary sterilization base 4 in the thickness direction. As shown in fig. 4, the four second rotators 19 still form a position where the hand comes into contact with the auxiliary disinfecting base 4. After the hand is placed on the upper plate surface of the auxiliary disinfection base part 4 through the positioning mechanism, the five fingers are respectively opposite to the strip-shaped holes 12 and push the first rotary bodies 13 in the strip-shaped holes 12 towards the direction of the springs 23, so that the nail grooves tightly contact the corresponding first rotary bodies 13. The spring 23 is now compressed to accommodate different user finger lengths. After the sterilization is completed, the hand is separated from the auxiliary sterilization base 4, and the first revolving body 13 is rebounded to the initial state shown in fig. 4 by the spring 23.

Although various embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Claims

1. The utility model provides a medical surgery hand sterilizer convenient to eliminate disinfection dead angle, is equipped with disinfection mouth (8) that supply the hand to stretch into disinfection chamber (3) including casing (2) that have disinfection chamber (3) at the lateral part of casing (2), and the upper and lower both sides that lie in disinfection chamber (3) in casing (2) are equipped with a plurality of spray nozzles (1) that can spray vaporific disinfectant in disinfection chamber (3) respectively, its characterized in that:

an auxiliary paronychia disinfection device, an auxiliary webbed finger disinfection device and an auxiliary knuckle crease disinfection device are arranged in the disinfection cavity (3); the auxiliary disinfection device for the nail groove is provided with a plurality of first revolving bodies (13) distributed at the positions corresponding to the nail groove, first bristles are uniformly distributed on the revolving surface of each first revolving body (13), and the first bristles are used for brushing the disinfectant stained on the first bristles into the nail groove in the rotating process along with the first revolving bodies (13); the webbed-finger auxiliary disinfection device is provided with a plurality of second revolving bodies (19) distributed at the positions corresponding to the webbed fingers, second bristles are uniformly distributed on the revolving surface of each second revolving body (19), and the second bristles are used for brushing the disinfectant stained on the second bristles into the webbed fingers in the rotating process of the second revolving bodies (19); the joint fold auxiliary disinfection device is used for teaching hands to sequentially carry out holding and opening actions or teaching hands to sequentially carry out opening and holding actions so as to open the back folds of the finger joints in the holding action and carry out spray disinfection by the upper nozzle (1), and the back folds of the finger joints are opened in the opening action and carry out spray disinfection by the lower nozzle (1);

an auxiliary disinfection base (4) for arranging an auxiliary disinfection device for the paronychia and an auxiliary disinfection device for the webbed fingers is arranged in the disinfection cavity (3); the second revolving body (19) is driven to rotate by a corresponding second motor (20), the second motor (20) is fixed on the auxiliary disinfection base part (4) at intervals, and a positioning mechanism for the contact and matching of a hand and the auxiliary disinfection base part (4) is formed by the second revolving body (19) fixed by the second motor (20); the first revolving body (13) is driven to rotate by a corresponding first motor (11), a strip-shaped hole (12) for the first motor (11) to slide is formed in the auxiliary disinfection base (4), and the auxiliary disinfection device for the paronychia further comprises a finger length self-adjusting mechanism for driving the first motor (11) to slide along the strip-shaped hole (12) so that bristles on the first revolving body (13) are in tight contact with the paronychia position located by the locating mechanism.

2. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 1, wherein: the auxiliary disinfection base (4) is a flat plate fixed in the disinfection cavity (3), the second motor (20) is fixed on the lower side plate surface of the auxiliary disinfection base (4), a hole for exposing the upper end of the second revolving body (19) penetrates through the plate surface of the auxiliary disinfection base (4), and the strip-shaped hole (12) penetrates through the plate surface of the auxiliary disinfection base (4) in the thickness direction; the finger length self-adjusting mechanism is a spring (23) which is arranged in the strip-shaped hole (12) and is positioned in the sliding direction of the first motor (11), and when a hand is in contact fit with the auxiliary disinfection base (4) through the positioning mechanism, the paronychia part of the hand pushes the first motor (11) to slide along the sliding chute and compress the spring (23).

3. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 1, wherein: the auxiliary disinfection base (4) is cylindrical, the strip-shaped holes (12) penetrate through the peripheral wall of the auxiliary disinfection base (4) and are distributed, the second motor (20) is fixed on the inner wall of the auxiliary disinfection base (4), and the auxiliary disinfection base (4) penetrates through the hole for exposing the upper end of the second rotary body (19); the finger length self-adjusting structure comprises a third motor (21) arranged at the end position of the auxiliary disinfection base part (4) and through shafts (18) connected to an output shaft of the third motor (21) and axially distributed along the auxiliary disinfection base part (4), a plurality of rotary rings (17) are arranged on the through shafts (18) in a spaced sleeve mode, the number of the rotary rings (17) is consistent with that of the first motor (11) and the rotary rings are connected in a one-to-one correspondence mode, and damping glue (16) in friction fit with the through shafts (18) is further arranged on the inner edge of each rotary ring (17).

4. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 3, wherein: first motor (11) that correspond with the thumb rotate the cover through change (17) and damping gum (16) and establish on unipolar (15), unipolar (15) rotate set up in supplementary disinfection basal portion (4) and be on a parallel with through axle (18) and distribute, are equipped with first gear (14) on unipolar (15) and through axle (18) respectively, and two first gear (14) meshing are connected in order to be synchronous and the counter-rotation of through axle (18) drive unipolar (15).

5. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 3, wherein: the joint fold auxiliary disinfection device comprises a cylindrical auxiliary disinfection base portion (4) and a driving mechanism used for driving the auxiliary disinfection base portion (4) to move towards the direction opposite to the disinfection opening (8), the arc-shaped outer wall of the auxiliary disinfection base portion (4) can be used for teaching a hand to hold, and the auxiliary disinfection base portion (4) can teach fingers to open to complete the opening action of the hand in the moving process towards the direction opposite to the disinfection opening (8) under the action of the driving mechanism.

6. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization according to claim 5, wherein: a rectangular sliding block (5) is arranged at the end part of the auxiliary disinfection base part (4), a shaft seat for the through shaft (18) to be in running fit is arranged in the rectangular sliding block (5), and a rectangular guide groove (7) for the rectangular sliding block (5) to be in sliding fit is correspondingly arranged in the shell (2); the driving mechanism comprises a third motor (21), a second gear (22) arranged on an output shaft of the third motor (21) and a rack (6) meshed with the second gear (22), wherein the rack (6) is fixed in the shell (2) and is parallel to the rectangular guide groove (7), the second gear (22) comprises an inner ring (27) fixed on the output shaft of the third motor (21) and an outer ring (24) in the peripheral position of the inner ring (27) in a rotating fit mode, a plurality of wedge-shaped grooves (26) are formed in the peripheral position of the inner ring (27) at intervals, and a pin column (25) capable of being matched with the inner walls of the wedge-shaped grooves (26) and the outer ring (24) to enable the outer ring (24) to rotate only in a single direction is arranged in each wedge-shaped groove (26).

7. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 6, wherein: the rectangular guide grooves (7) are obliquely and upwards distributed at one end opposite to the disinfection opening (8).

8. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 6, wherein: a first travel switch (9) is arranged at a position, close to one end of a disinfection port (8), of a rectangular guide groove (7), a second travel switch (10) is arranged at a position, far away from one end of the disinfection port (8), the first travel switch (9) and the second travel switch (10) are in signal connection with a single chip microcomputer, a disinfection program is arranged in the single chip microcomputer, the first motor (11) is started after the first travel switch (9) is in contact with a rectangular sliding block (5), the second motor (20), the third motor (21) and a nozzle (1) located at the upper part of a disinfection cavity (3) are turned on and closed in a delayed mode, the first motor (11), the second motor (20), the third motor (21) and the nozzle (1) located at the upper part of the disinfection cavity (3) are turned on synchronously after the third motor (21) is turned off, the nozzle (1) located at the lower part of the disinfection cavity (3) is turned off, and the third motor (21) is turned off and the nozzle (1) located at the lower part is maintained after the second travel switch (10) is in contact with the rectangular sliding block (5) ) And closing the time delay.

9. A medical surgical hand sterilizer facilitating elimination of dead spaces for sterilization as set forth in claim 8, wherein: a fan and a heating pipe are also arranged in the disinfection cavity (3), and the fan and the heating pipe are started after the disinfection program in the single chip microcomputer controls the lower nozzle (1) to be closed in a delayed manner, so that the fan and the heating pipe are closed in a delayed manner.