CN110742671B

CN110742671B - Automatic binding disposable tourniquet device

Info

Publication number: CN110742671B
Application number: CN201911054322.3A
Authority: CN
Inventors: 陈丽勤; 周瑜; 蒋美玲
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: First Affiliated Hospital of PLA Military Medical University
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-10-27
Anticipated expiration: 2039-10-31
Also published as: CN110742671A

Abstract

The invention relates to the technical field of medical instruments and discloses an automatic binding disposable tourniquet device, which comprises a workbench, wherein a through hole is formed in the workbench, and a placing platform is fixed in the through hole; a driven gear concentric with the through hole is arranged on the workbench and is rotationally connected with the workbench, the driven gear is engaged with a driving gear, and the driving gear is driven by a driving piece; the rotating frame is fixed on the driven gear in the same circle center, the recovery frame is fixed on the rotating frame, the conveying frame far away from the recovery frame is fixed on the workbench, the recovery frame is connected with the recovery roller in a rotating mode, the recovery roller is connected with a power part fixed on the recovery frame, the conveying frame is connected with the conveying roller in a rotating mode, the conveying roller is wound with a tourniquet, and one end of the tourniquet runs through the rotating frame and is fixed on the recovery roller. The tourniquet is simple in structure and convenient to replace, collect and bind.

Description

Automatic binding disposable tourniquet device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an automatic binding disposable tourniquet device.

Background

The tourniquet is a medical appliance used by clinical medical staff for puncturing blood vessels, is frequently used during blood drawing, blood transfusion and transfusion, and is usually bound on the arm of a patient during use to highlight the blood vessels on the arm of the patient so as to facilitate blood drawing or transfusion after the blood vessels of the patient are punctured.

The hose type tourniquet is continuously used clinically, the hose type tourniquet can be used in a crossed way and repeatedly, common phenomena of non-disinfection or incomplete disinfection, overlong disinfection interval and the like can occur, and common problems of serious pollution of the tourniquet and the like are caused. Therefore, the disposable tourniquet is widely popularized in the market at present, the disposable tourniquet in the market is generally made of natural rubber and is flat and wide, each piece is independently packaged, and medical staff need to disassemble the package before use; for a clinical laboratory which is a department specially used for drawing blood for patients, the disposable tourniquet used frequently has higher working strength and greatly reduced working efficiency.

Whether the tourniquet is a hose type tourniquet or a disposable tourniquet, when in use, medical staff is required to be manually bound on the arms of patients, when blood is drawn for the patients, the operation is carried out on a blood drawing table, and in order to strictly avoid indirect contact between the patients, a piece of tissue is placed below the arms of the patients on the blood drawing table. After the blood drawing is completed, the medical staff needs to unfasten the tourniquet, and the patient needs to take the arm off and take down the tissue paper for discarding. For medical care personnel, the actions are repeated continuously and frequently, the labor intensity is very high, the fatigue is easy to occur, and the whole time spent on drawing blood for one patient is increased. In addition, the tourniquet is bound manually by medical staff, and the problem of improper tightness exists, so that the vein display is possibly not obvious, the puncture failure is easily caused, and the pain of a patient is increased.

Disclosure of Invention

The invention aims to provide an automatic binding disposable tourniquet device, which is convenient for binding the tourniquet on the arms of a patient.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic binding disposable tourniquet device comprises a workbench, wherein a through hole is formed in the workbench, and a placing platform is fixed in the through hole;

a driven gear concentric with the through hole is arranged on the workbench and is rotationally connected with the workbench, the driven gear is engaged with a driving gear, and the driving gear is driven by a driving piece;

the rotating frame is fixed on the driven gear in the same circle center, the recovery frame is fixed on the rotating frame, the conveying frame far away from the recovery frame is fixed on the workbench, the recovery frame is connected with the recovery roller in a rotating mode, the recovery roller is connected with a power part fixed on the recovery frame, the conveying frame is connected with the conveying roller in a rotating mode, the conveying roller is wound with a tourniquet, and one end of the tourniquet runs through the rotating frame and is fixed on the recovery roller.

The principle and the beneficial effects of the invention are as follows:

the hose type tourniquet can be used alternately and repeatedly, and common phenomena of non-disinfection or incomplete disinfection, overlong disinfection interval and the like can occur, so that the common problems of serious pollution of the tourniquet and the like are caused. At present, the disposable tourniquet is widely popularized, the disposable tourniquet on the market is generally made of natural rubber, is flat and wide, is individually packaged, and needs to be disassembled and packaged before being used by medical care personnel; for a clinical laboratory which is a department specially used for drawing blood for patients, the high-frequency disposable tourniquet has higher working strength and greatly reduces the working efficiency.

In the scheme, (1) the rotating frame is driven to rotate by the driving piece, and the rotating frame drives the recovery frame to rotate, so that the recovery frame is bound on the arm of the patient with the tourniquet. The driving gear is matched with the driven gear, and the binding degree can be controlled according to different angles of arm thickness rotation of patients so as to adapt to arms of different patients.

(2) Through this scheme, medical personnel's operation has been reduced, and great improvement medical personnel's work efficiency.

(3) In the prior art, the recovery of the tourniquet is very inconvenient, and the tourniquet is generally arranged on the arm of a patient, so that the patient can easily discard the tourniquet at will, thereby causing the damage of environmental sanitation. In this application, the tourniquet twines on retrieving roller and conveying roller, not only can effectively retrieve the tourniquet, can also avoid random of tourniquet to losing, protection sanitation.

Through the cooperation of retrieving rod and conveying roller, effectively change after the tourniquet is once used, reduced the probability of cross infection between patient and the patient, overcome the drawback that traditional sticky tape used repeatedly brought.

Furthermore, a pawl is fixed on a roll shaft of the recovery roll, and a ratchet wheel which is in running fit with the pawl is fixed on the recovery frame.

Has the advantages that: the recovery roller is not returned through the matching of the ratchet wheel and the pawl, so that the tourniquet is prevented from being pulled out when the tourniquet is wound on the arm of a patient.

Furthermore, a locking rod is fixed on a roll shaft of the conveying roll, and a locking groove matched with the locking rod is formed in the workbench.

Has the advantages that: through the cooperation of locking lever and locking groove for retrieve the roller and can't rotate, thereby make and retrieve the tourniquet on roller and the conveying roller and tighten, so that bind on patient's arm.

Further, the placing platform is vertically and slidably connected with a placing plate, and the bottom of the placing plate is provided with an elastic piece which is abutted to the placing platform.

Has the advantages that: the arm of the patient is placed on the placing plate, the placing plate presses the elastic piece to slide downwards under the action of the arm, so that the placing plate is made to the arm, and the placing plate cushions the arm, so that the arm of the patient feels comfortable.

Further, be fixed with the cam with the coaxial fixed of driving gear on the driving piece, the cam below is provided with the gas tank, vertical sliding connection has the pressure plate in the gas tank, the bottom of pressure plate is fixed with the pressure spring, be fixed with the push rod that offsets with the cam on the pressure plate, gas tank one side intercommunication has the check valve of admitting air, gas tank opposite side intercommunication has the check valve of giving vent to anger, the check valve intercommunication of giving vent to anger has the air flue of setting on the workstation, the air flue intercommunication has the shower nozzle of placing the board towards, the lower part of placing the board is fixed with the guide rod, be provided with on the guide rod can with the gas port of air flue.

Has the advantages that: the cam extrudes the pressure plate downwards, gas enters the air passage through the air outlet one-way valve, the pressure plate is pushed upwards by the pressure spring, and the gas enters the gas box through the air inlet one-way valve. Gas enters the air flue and enters the sprayer through the air port, and gas in the sprayer blows towards the placing plate, and when impurities or packing paper towels exist on the placing plate, the gas blows away the impurities or the packing paper towels.

Further, the placing platform is provided with pad tissue.

Has the advantages that: the arms of the patient are protected by the tissue paper, and unnecessary bacteria on the arms are avoided.

Further, the waste paper mouth has been seted up to one side that the driving piece was kept away from to the workstation, and waste paper mouth intercommunication has the collection box, has seted up the pressure release mouth on the collection box.

Has the advantages that: the gas that the shower nozzle blew off blows the pad paper handkerchief to the waste paper mouth to in the recycle bin was blown in through the waste paper mouth to the pad paper handkerchief of waste gas, the pressure release mouth carries out the pressure release to the recycle bin.

Furthermore, the gear ratio of the driving gear to the driven gear is 1: 5-1: 10.

Has the advantages that: the driving gear rotates for multiple circles by the gear ratio of 1: 5-1: 10 to enable the driven gear to drive for one circle, so that the air box has enough time to store air, and meanwhile, the rotation angle of the driven gear is convenient to adjust.

Further, the recycling box is detachably connected with the workbench.

Has the advantages that: the recycling bin is detachably connected with the workbench, so that the recycling bin can be conveniently detached from the workbench, and waste pad tissues in the recycling bin can be conveniently poured out.

Further: the upper part of the workbench is made of transparent materials.

Has the advantages that: through transparent material, the medical personnel of being convenient for observe the inside condition of through-hole.

Drawings

FIG. 1 is an isometric view of an automatically strapped disposable tourniquet device according to one embodiment of the present invention;

FIG. 2 is a front view of an auto-banding disposable tourniquet device according to an embodiment of the present invention;

FIG. 3 is a top view of an auto-banding disposable tourniquet device according to an embodiment of the present invention;

FIG. 4 is a schematic view of a conveyor roller according to a first embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a recovery roller according to a first embodiment of the present invention;

FIG. 6 is a schematic structural view of a ratchet and a pawl according to a first embodiment of the present invention;

fig. 7 is a front partial cross-sectional view of an auto-banding disposable tourniquet device according to a second embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a workbench 1, a conveying frame 2, a conveying roller 21, a bearing 22, a locking rod 23, a driven gear 3, a stepping motor 4, a driving gear 5, a cam 51, a rotating frame 6, a recovery frame 7, a recovery roller 71, a ratchet wheel 72, a pawl 73, a single-phase motor 8, a tourniquet 9, a placing platform 10, a placing plate 101, a spring 102, a conducting rod 103, an air port 104, an air channel 105, a through hole 11, an air box 13, a pressure plate 131, an air inlet check valve 132, a push rod 134, an air outlet check valve 135, a recovery box 15, a waste paper port 151 and a spray head 16.

The first embodiment is as follows:

basically as shown in the attached figures 1, 2 and 3, the automatic binding disposable tourniquet device comprises a workbench 1, a through hole 11 is arranged on the workbench 1, the upper part of the workbench 1 is made of transparent materials, such as: transparent glass. The working condition in the through hole 11 can be observed transparently at the upper part of the workbench 1.

The sliding groove located in the periphery of the through hole 11 is formed in the workbench 1, the driven gear 3 is arranged on the workbench 1, the driven gear 3 and the through hole 11 are concentric, a plurality of sliding blocks stretching into the sliding groove are welded on the driven gear 3, the sliding blocks are uniformly distributed along the circumference of the driven gear 3, and the sliding blocks are connected with the sliding groove in a sliding mode. The driven gear 3 is engaged with a driving gear 5, the gear ratio of the driving gear 5 to the driven gear 3 is 1: 5-1: 10, and the gear ratio of the driving gear 5 to the driven gear 3 is 1:5 in the embodiment. The worktable 1 is fixed with a driving part through a fastening bolt, the driving part is a stepping motor 4 in the embodiment, and an output shaft of the stepping motor 4 is coaxially fixed with a driving gear 5, for example: welded or splined.

The driven gear 3 is fixed with a rotating frame 6 through a bolt, and the rotating frame 6 is concentric with the driven gear 3. The welding has the recovery frame 7 on the rotating turret 6, is fixed with carriage 2 through the bolt on the workstation 1, and carriage 2 and rotating turret 6's interval can supply the recovery frame 7 to pass through.

As shown in fig. 4 and fig. 5, the conveying frame 2 is rotatably connected with a conveying roller 21, the conveying roller is rotatably connected with the workbench 1 through a bearing 22, the conveying roller 21 is wound with a disposable tourniquet 9, a locking rod 23 is fixed on a roller shaft of the conveying roller 21, and the workbench 1 is provided with a locking groove in sliding fit with the locking rod 23. The recovery frame 7 is rotatably connected with a recovery roller 71, as shown in fig. 6, the recovery frame 7 is welded with a ratchet 72, a roller shaft of the recovery roller 71 is welded with a pawl 73 which is rotatably matched with the ratchet 72, and the recovery frame 7 is fixed with a power part through a bolt, wherein the power part is a single-phase motor 8. The output shaft of the single-phase motor 8 is fixedly connected with the roller shaft of the recovery roller 71, and the rotating frame 6 is provided with two openings for the tourniquet 9 to pass through.

The specific implementation process is as follows:

as shown in fig. 2, initially, one end of the disposable tourniquet 9 is clamped or bound on the delivery roller 21, the other end of the tourniquet 9 penetrates through the rotating frame 6 and is fixed on the recovery roller 71, and the locking rod 23 is inserted into the locking rod 23, that is, the delivery roller 21 is locked. The hand of the patient needing blood drawing is inserted into the through hole 11 and positioned at the right side of the tourniquet 9, the arm is placed on the placing platform 10, and the placing depth is different according to the length of the arm, so that the arm is attached to the tourniquet 9.

The step motor 4 is started, the step motor 4 drives the driving gear 5 clockwise, the driving gear 5 drives the driven gear 3 to rotate anticlockwise, the driven gear 3 drives the rotating frame 6 to rotate, the rotating frame 6 drives the recovery frame 7 to rotate, the recovery roller 71 on the recovery frame 7 drives the tourniquet 9 to rotate, and the tourniquet 9 is bound on the arm of the patient. When the recovery roller 71 rotates along with the rotating frame 6, the ratchet wheel 72 and the pawl 73 are used for stopping the recovery roller 71, so that the tourniquet 9 on the recovery roller 71 is not pulled out, the conveying roller 21 is locked under the action of the locking rod 23 and the locking groove, the tourniquet 9 on the conveying roller 21 is not pulled out, and the tourniquet 9 between the conveying roller 21 and the recovery roller 71 is tightened, namely, the tourniquet 9 is bound on the arm of the patient when the recovery frame 7 rotates.

After the blood drawing is finished, the stepping motor 4 is started to reset the rotating frame 6, the tourniquet 9 is released from the arm of the patient, and the stepping motor 4 is closed. As shown in the attached figure 2, the locking rod 23 is pulled out from the locking groove, so that the conveying roller 21 can rotate, the single-phase motor 8 is started, the single-phase motor 8 drives the recovery roller 71 to rotate clockwise, the used tourniquet 9 is wound on the recovery roller 71, a new tourniquet 9 is rotated out from the conveying roller 21, and the disposable tourniquet 9 is replaced in this way.

Example two:

the second embodiment is different from the first embodiment in that, as shown in fig. 7, a cam 51 coaxial with the drive gear 5 is fixed to an output shaft of the stepping motor 4, an air box 13 is provided below the cam 51, and the air box 13 is fixed to the table 1 by a fastening bolt. A pressure plate 131 is vertically and slidably connected in the air box 13, a pressure spring (not shown in the figure) abutting against the air box 13 is welded at the bottom of the pressure plate 131, a push rod 134 penetrating through the top wall of the air box 13 is welded at the upper part of the pressure plate 131, and the push rod 134 abuts against the cam 51.

The left side wall of the air box 13 is fixed with an air inlet one-way valve 132 through a bolt, the air inlet one-way valve 132 is communicated with the air box 13, when the pressure in the air box 13 is reduced, air enters the air box 13 through the air inlet one-way valve 132, the right side wall of the air box 13 is fixed with an air outlet one-way valve 135 through a bolt, and when the pressure in the air box 13 is increased, the air is discharged out of the air box 13 through the air outlet one-way valve 135.

The placing platform 10 is provided with a groove, a placing plate 101 is vertically and slidably connected in the groove, a spray head 16 is arranged on the left side of the placing plate 101, the spray head 16 is fixed on the workbench 1 through a bolt, and the placing plate 101 is provided with pad tissues. Place and seted up waste paper mouth 151 on the workstation 1 on board 101 right side, waste paper mouth 151 intercommunication has collection box 15, and collection box 15 opens there is the pressure release mouth, and collection box 15 passes through fastening bolt and is connected with workstation 1 can dismantle.

The bottom of the placing plate 101 is welded with a conducting rod 103, and the lower part of the conducting rod 103 is provided with an air port 104. An elastic member, in this embodiment, a spring 102 is welded to the bottom of the placing plate 101, and the other end of the spring 102 is welded to the table 1. An air passage 105 is formed in the workbench 1, the air passage 105 is communicated with the air outlet one-way valve 135 through an air pipe, and the air passage 105 is communicated with the spray head 16 through the air pipe.

The specific implementation process is as follows:

initially, when the arm of the patient is placed on the placement plate 101, the placement plate 101 moves downward and the placement plate 101 moves downward with the conduction rod 103, and the air port 104 of the conduction rod 103 is offset from the air passage 105. When the stepping motor 4 works, the stepping motor 4 carries the cam 51 to work, and when the convex part of the cam 51 is separated from the push rod 134, the pressure plate 131 is pushed by the compressed spring to slide upwards, and the gas enters the gas box 13 through the gas inlet check valve 132. When the convex part of the cam 51 is abutted against the push rod 134, the pressure plate 131 presses the compression spring and the gas enters the gas passage 105 through the gas outlet check valve 135.

The gas is stored in the gas passage 105, when the arm of the patient is separated from the placing plate 101, the spring 102 pushes the placing plate 101 to be reset, the placing plate 101 slides upward with the conducting rod 103, and the gas port 104 is made to communicate with the gas passage 105, and the gas in the gas passage 105 passes through the gas port 104 and is discharged from the shower head 16. The gas from the nozzle 16 blows the paper towel into the recycling box 15 through the waste paper outlet 151, so as to recycle the waste paper towel.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.

Claims

1. The automatic binding disposable tourniquet device is characterized in that: the device comprises a workbench, wherein a through hole is formed in the workbench, and a placing platform is fixed in the through hole;

a driven gear concentric with the through hole is arranged on the workbench, the driven gear is rotationally connected with the workbench, the driven gear is meshed with a driving gear, the driving gear is driven by a driving piece, a cam coaxially fixed with the driving gear is fixed on the driving piece, an air box is arranged below the cam, a pressure plate is vertically and slidably connected in the air box, a pressure spring is fixed at the bottom of the pressure plate, a push rod abutting against the cam is fixed on the pressure plate, an air inlet one-way valve is communicated with one side of the air box, an air outlet one-way valve is communicated with the other side of the air box, the air outlet one-way valve is communicated with an air passage arranged on the workbench, the air passage is communicated with a spray head facing the placing plate, a conducting rod is fixed at the lower part of the placing plate;

2. The auto-banding disposable tourniquet device of claim 1, wherein: and a pawl is fixed on a roll shaft of the recovery roll, and a ratchet wheel which is in running fit with the pawl is fixed on the recovery frame.

3. The auto-banding disposable tourniquet device of claim 2, wherein: and a locking rod is fixed on a roll shaft of the conveying roll, and a locking groove matched with the locking rod is arranged on the workbench.

4. The auto-banding disposable tourniquet device of claim 1, wherein: the placing platform is vertically and slidably connected with a placing plate, and the bottom of the placing plate is provided with an elastic piece which is abutted to the placing platform.

5. The automatic binding disposable tourniquet device according to any of claims 1 to 4, wherein: the placing platform is provided with pad tissue.

6. The auto-banding disposable tourniquet device of claim 5, wherein: the waste paper mouth has been seted up to one side that the workstation kept away from the driving piece, and waste paper mouth intercommunication has the collection box, has seted up the pressure release mouth on the collection box.

7. The auto-banding disposable tourniquet device of claim 1, wherein: the gear ratio of the driving gear to the driven gear is 1: 5-1: 10.

8. The auto-banding disposable tourniquet device of claim 6, wherein: the recycling box is detachably connected with the workbench.

9. The auto-banding disposable tourniquet device of claim 8, wherein: the upper part of the workbench is made of transparent materials.