CN109481791B

CN109481791B - Medical device for Intensive Care Unit (ICU)

Info

Publication number: CN109481791B
Application number: CN201811324462.3A
Authority: CN
Inventors: 李尊柱; 崔娜; 周翔; 隆云; 马玉芬
Original assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Current assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Priority date: 2018-11-08
Filing date: 2018-11-08
Publication date: 2021-02-09
Anticipated expiration: 2038-11-08
Also published as: CN109481791A

Abstract

The invention discloses a medical device for an Intensive Care Unit (ICU), which comprises a square shell, a fixing device, a safety device and a driving device, wherein the fixing device is arranged on one side of the front part of the square shell; the fixing device comprises two U-shaped lugs fixedly arranged on the front part of the square shell and a clamping piece rotatably arranged on the front part of the square shell. The invention has the advantages of safety, reliability, long service life, simple, convenient, quick and efficient operation for fixing the injector, and capability of preventing the injector from interrupting the injection of the liquid medicine for the patient, thereby eliminating the hidden trouble of threatening the life safety of the patient, stably driving the injector to inject the liquid medicine for the patient and effectively ensuring the life safety of the patient.

Description

Medical device for Intensive Care Unit (ICU)

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical device for an Intensive Care Unit (ICU).

Background

The ICU, an Intensive Care Unit (Intensive Care Unit), is also called the deep treatment department, and is a medical organization management form integrating modern medical Care technology with the development of medical Care professions, the emergence of novel medical equipment, and the improvement of hospital management systems. The ICU collects critical patients and provides the best guarantee on manpower, material resources and technology so as to obtain good treatment effect.

The injection pump is a medical device commonly used in intensive care units, the operation of fixing the injector by the existing injection pump is troublesome and inefficient, and the injector can be operated reversely when the operation is failed, so that the injector pumps the blood of a patient, and the life safety of the patient is directly threatened for a severe patient who needs blood transfusion urgently; the piston handle of the syringe is separated from the syringe pump, so that the syringe is interrupted to inject liquid medicine for a patient, and serious threat potential is generated to the life safety of the patient.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a medical device for an ICU intensive care unit, wherein the operation of fixing an injector is simple, convenient, quick and efficient, and when the driving device fails, the driving device can be prevented from driving the injector to reversely operate, so that the driving device is prevented from driving the injector to draw blood of a patient out, the life safety of the patient can be effectively ensured, the piston handle of the injector can be prevented from being separated from the end part of the square cross rod positioned outside the front part of the square shell, the driving device can be ensured to stably drive the injector to inject liquid medicine into a blood vessel of the patient, the injector can be prevented from being interrupted to inject liquid medicine into the patient due to the separation of the piston handle of the injector and the end part of the square cross rod positioned outside the front part of the square shell.

In order to achieve the purpose, the invention provides the following technical scheme:

a medical device for an ICU intensive care unit comprises a square shell, a fixing device, a safety device and a driving device, wherein the fixing device is arranged on one side of the front portion of the square shell, the safety device and the driving device are both arranged inside the square shell, a guide groove is formed in the other side of the front portion of the square shell, and a slot is formed in the front portion of the square shell and positioned between the fixing device and the guide groove;

the fixing device comprises two U-shaped lugs fixedly arranged at the front part of the square shell and a clamping piece rotatably arranged at the front part of the square shell, and the clamping piece is positioned between the two U-shaped lugs;

the safety device comprises a transverse plate which is arranged at the bottom of the inner top wall of the square shell through two guide rods, a toothed rail consisting of a plurality of tooth grooves is arranged at the bottom of the transverse plate, first springs are sleeved outside the two guide rods, the upper ends of the first springs are abutted against the inner top wall of the square shell, the bottom ends of the first springs are abutted against the upper part of the transverse plate, a vertical rod is fixedly arranged in the middle of the upper part of the transverse plate, and the upper ends of the vertical rods penetrate through the top wall of the square shell and extend to the outside of the upper part of the square shell to be connected with a handle;

drive arrangement includes through base fixed mounting in the step motor of the inside bottom of square shell, the one end fixed connection of shaft coupling and lead screw is passed through to step motor's axis of rotation, the other end of lead screw is installed through first antifriction bearing on the inside lateral wall of square shell, just the outside spiro union of lead screw has square horizontal pole, the upper portion fixed mounting of square horizontal pole have with rack engaged with tooth, just the one end of square horizontal pole is run through the guide way extends to the front portion outside of square shell.

By adopting the technical scheme, the fixing device is matched with the slot to fix the injector, and the clamping piece is arranged to ensure that the operation of fixing the injector is simple, convenient and quick; the safety device is used for playing a safety role, and can prevent the driving device from driving the injector to reversely operate when the driving device fails, so that the driving device is prevented from driving the injector to extract blood of a patient, and the life safety of the patient can be effectively ensured; the driving device is used for driving the syringe to inject the liquid medicine into the blood vessel of the patient.

Further, the square cross rod is located the outside one end of square shell front portion is close to the draw-in groove has been seted up on a side of card holding piece, just the square cross rod is located the outside one end of square shell front portion is kept away from install adjusting bolt through second antifriction bearing on a side of card holding piece, adjusting bolt is close to the outside spiro union of one end of draw-in groove has the sleeve, sleeve movable mounting is in the inside of square cross rod, the inside activity of draw-in groove is provided with square rubber plate, a side of square rubber plate with the sleeve is kept away from an end fixed connection of adjusting bolt.

Through adopting above-mentioned technical scheme, when fixed syringe, can hold the piston handle card of syringe in the inside of draw-in groove, and utilize adjusting bolt to adjust the position of square rubber slab in the draw-in groove is inside, and then utilize the square rubber slab to push down the piston handle of syringe, can prevent that the piston handle of syringe and square horizontal pole are located the outside tip of square shell front portion and break away from, thereby guarantee that the stable drive syringe of drive arrangement injects the liquid medicine into patient's blood vessel, can prevent to be located the outside tip of square shell front portion and break away from and lead to the syringe to break off for patient's injection liquid medicine because of the piston handle of syringe and square horizontal pole, thereby eliminate the hidden danger that threatens patient's.

Further, the clamping member comprises an inner inserting rod, a cylinder and a clamping block, the inner inserting rod and the cylinder are fixedly installed on the front portion of the square shell, one end of the inner inserting rod, which is far away from the front portion of the square shell, is installed on one side face of a circular sliding block through a third rolling bearing, the circular sliding block is movably installed inside the cylinder, a second spring is sleeved outside the inner inserting rod, one end of the second spring is abutted against one side face of the circular sliding block, the other end of the second spring is abutted against one inner end wall of the cylinder, the clamping block is fixedly installed at one end portion, which is far away from the front portion of the square shell, of the cylinder, and an arc-shaped groove is formed in one.

Through adopting above-mentioned technical scheme for the fixture block not only can rotate, can outwards stimulate, not only conveniently puts into the syringe between two U type lugs and the arc recess, and the elasticity restraint fixture block of usable second spring compresses tightly the syringe moreover, thereby makes fixing device's operation more simple and efficient swift.

Furthermore, the guide rod comprises an outer sleeve rod with the upper end fixedly connected with the bottom of the inner top wall of the square shell and a connecting rod with the bottom fixedly connected with the upper portion of the transverse plate, a guide block is movably arranged inside the outer sleeve rod, and the upper end of the connecting rod extends into the inner portion of the outer sleeve rod and is fixedly connected with the bottom of the guide block.

Through adopting above-mentioned technical scheme, can prevent that the tooth's socket on the rack from leading to the diaphragm to remove and lead to first spring to take place the bending when pinning the tooth to can avoid tooth to break away from the rack, effectively guarantee safety device's structural stability, and then increase safety device's reliable performance.

Furthermore, a control switch is further arranged on one side of the front portion of the square shell and electrically connected with the stepping motor through a lead.

By adopting the technical scheme, the stepping motor can be controlled to work conveniently by the control switch.

Furthermore, the rear portion of the square shell is further provided with a rear cover plate through screws, four fixing lugs are symmetrically arranged at the corners inside the square shell, and threaded holes matched with the screws are formed in the fixing lugs.

Through adopting above-mentioned technical scheme, the back shroud is dismantled through the screw in the later stage of being convenient for, and the inside part of square shell is maintained conveniently, and the setting up of four fixed ears and screw hole makes the back shroud be convenient for install through the screw.

Further, square horizontal pole is located the inside one end bottom fixed mounting of square shell has Contraband type support, the inside rotation of Contraband type support installs the gyro wheel, the bottom of gyro wheel with the inner bottom wall of square shell is contradicted.

Through adopting above-mentioned technical scheme, gyro wheel and Contraband type support cooperate and have better supporting role to the square horizontal pole, can prevent that the tooth from leading to the square horizontal pole to produce decurrent pressure and lead to the lead screw to produce bending deformation to the lead screw at the in-process that the tooth moved in the tooth track bottom, and then guarantee the stable removal of square horizontal pole along the lead screw.

Furthermore, a plurality of through holes are uniformly formed in one side wall, close to the stepping motor, of the square shell.

Through adopting above-mentioned technical scheme, a plurality of through-holes are used for the step motor heat dissipation, can prevent that step motor from moving overheated to guarantee the stable operation of step motor.

Further, the bottom corner symmetry of square shell is equipped with four shock attenuation stabilizer blades, the shock attenuation stabilizer blade includes fixed mounting and is in the barrel of square shell's bottom and be located the circular rubber slab under the barrel, the both ends of barrel are the enclosed construction, just the inside from last to down movable mounting in proper order of barrel has first slider, third spring, second slider and spliced pole, the upper end of third spring with the bottom of first slider is contradicted, just the bottom of third spring with the upper portion of second slider is contradicted, the upper end of spliced pole with the bottom fixed connection of second slider, just the bottom of spliced pole is run through the diapire of barrel extends to the outside upper portion fixed connection with circular rubber slab in bottom of barrel.

Through adopting above-mentioned technical scheme, under the effect of third spring for the shock attenuation stabilizer blade possesses better elasticity, thereby makes the device possess better shock attenuation performance.

Further, an anticorrosive coating is further arranged on the surface of the square shell, and the anticorrosive coating is prepared by the following method:

weighing the following raw materials in parts by weight: 30-40 parts of epoxy resin, 12-18 parts of aluminum oxide powder, 15-20 parts of polyurethane, 6-10 parts of quartz powder, 18-26 parts of acrylic emulsion, 3-5 parts of paraffin, 8-12 parts of cobalt naphthenate, 1-3 parts of silane coupling agent and 40-60 parts of water;

s1, adding the weighed paraffin, silane coupling agent, cobalt naphthenate, acrylic emulsion and water into a stirrer, and stirring for 15-25min at the stirring speed of 600-;

s2, adding epoxy resin, aluminum oxide powder, polyurethane and quartz powder into a ball mill, and finely grinding until the particle diameter is not more than 40um to obtain a mixed powder material;

s3, adding the mixed solution prepared in the step S1 and the mixed powder material prepared in the step S2 into a reaction kettle, stirring for 20-30min at the stirring speed of 700-900r/min and at the temperature of 60-70 ℃ to prepare the anticorrosive paint;

s4, putting the square shell into an ultrasonic cleaning machine for cleaning, wherein the frequency of the ultrasonic cleaning machine is set to be 50-60KHz, the temperature is set to be 40-60 ℃, and the cleaning time is 12-18 min;

s5, drying the square shell cleaned in the step S4 by using a hot air blower, and then uniformly spraying the anticorrosive paint prepared in the step S3 on the surface of the dried square shell by using a high-pressure sprayer spray gun;

s6, drying the square shell sprayed with the anticorrosive paint in the step S5 in a drying chamber at the drying temperature of 100 ℃ and 120 ℃ for 20-30min, and thus obtaining the anticorrosive layer on the surface of the square shell.

By adopting the technical scheme, the prepared anticorrosive paint has moderate viscosity, is not easy to layer, is convenient to spray, fully combines all components, has better comprehensive performance, can form better coating after the anticorrosive paint is sprayed, is not easy to generate cracks, has better corrosion resistance and ageing resistance, has better adhesiveness, is not easy to fall off, can effectively protect the surface of a square shell from being corroded, and prolongs the service life of the device.

In summary, the invention mainly has the following beneficial effects:

1. according to the invention, the fixing device is matched with the slot to fix the injector, and the clamping piece is arranged to ensure that the operation of fixing the injector is simple, convenient, quick and efficient;

2. according to the invention, the safety device is used for playing a safety role, and the driving device can be prevented from driving the injector to reversely operate when the driving device fails, so that the driving device is prevented from driving the injector to extract blood of a patient, and the life safety of the patient can be effectively ensured;

3. according to the invention, the driving device is used for driving the injector to inject liquid medicine into the blood vessel of a patient, when the injector is fixed, the piston handle of the injector can be clamped in the clamping groove, the position of the square rubber plate in the clamping groove is adjusted by using the adjusting bolt, and then the piston handle of the injector is pressed by using the square rubber plate, so that the piston handle of the injector and the end part of the square cross rod, which is positioned outside the front part of the square shell, can be prevented from being separated, thereby ensuring that the driving device stably drives the injector to inject the liquid medicine into the blood vessel of the patient, preventing the injector from being interrupted to inject the liquid medicine into the patient due to the separation of the piston handle of the injector and the end part of the square cross rod, which is positioned;

4. according to the invention, the guide rod is arranged, so that the transverse plate can be prevented from moving to bend the first spring when the tooth grooves on the tooth track lock the teeth, the teeth can be prevented from being separated from the tooth track, the structural stability of the safety device is effectively ensured, and the reliability of the safety device is further improved;

5. according to the invention, the roller and the Contraband-type bracket are matched to have a better supporting effect on the square cross rod, so that the square cross rod can be prevented from generating downward pressure on the screw rod to cause the bending deformation of the screw rod in the process that teeth move at the bottom of the rack, and further the stable movement of the square cross rod along the screw rod is ensured, and the driving device can be used for stably driving the injector to inject liquid medicine to a patient;

6. the prepared anticorrosive coating has moderate viscosity, is not easy to delaminate, is convenient to spray, fully combines all components, has good comprehensive performance, can form a good coating after the anticorrosive coating is sprayed, is not easy to generate cracks, has good corrosion resistance and ageing resistance, has good adhesion, is not easy to fall off, can effectively protect the surface of a square shell from being corroded, thereby prolonging the service life of the device, and is worthy of popularization.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a rear view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of a rear cover plate according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of FIG. 3;

FIG. 5 is a schematic front view of the structure of FIG. 1;

FIG. 6 is an enlarged partial sectional view of FIG. 5 at A;

FIG. 7 is a schematic view of a retainer according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of FIG. 1 after two U-shaped bumps are removed;

FIG. 9 is an enlarged view of the structure at B in FIG. 8;

FIG. 10 is a schematic view of the internal structure of an embodiment of the present invention;

FIG. 11 is an enlarged view of the structure of FIG. 10 at C;

FIG. 12 is a schematic structural view of a guide bar according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a shock absorbing foot according to an embodiment of the present invention.

In the figure: 1. a square housing; 2. a fixing device; 3. a safety device; 4. a drive device; 5. a handle; 6. a control switch; 7. shock absorption support legs; 8. a U-shaped bump; 9. a retaining member; 10. a slot; 11. a square cross bar; 12. a guide groove; 13. a through hole; 14. a screw; 15. a rear cover plate; 16. model Contraband stents; 17. a roller; 18. fixing the ear; 19. a card slot; 20. a square rubber plate; 21. a sleeve; 22. a second rolling bearing; 23. adjusting the bolt; 24. a base; 25. a first rolling bearing; 26. a transverse plate; 27. a guide bar; 28. a first spring; 29. a rack rail; 30. a coupling; 31. teeth; 32. a screw rod; 33. an outer loop bar; 34. a guide block; 35. a connecting rod; 36. a clamping block; 37. a cylinder; 38. a circular slider; 39. a third rolling bearing; 40. a second spring; 41. an inner inserted rod; 42. a barrel; 43. (ii) a 44. A first slider; 45. a third spring; 46. connecting columns; 47. a circular rubber plate; 48. erecting a rod; 49. a stepper motor.

Detailed Description

Example 1

The present invention is described in further detail below with reference to figures 1-13.

A medical device for an Intensive Care Unit (ICU), as shown in fig. 1-13, comprising a square housing 1, a fixing device 2, a safety device 3 and a driving device 4, wherein the fixing device 2 is arranged at one side of the front part of the square housing 1, the safety device 3 and the driving device 4 are both arranged inside the square housing 1, a guide groove 12 is arranged at the other side of the front part of the square housing 1, and a slot 10 is arranged between the fixing device 2 and the guide groove 12 at the front part of the square housing 1;

the fixing device 2 comprises two U-shaped lugs 8 fixedly arranged at the front part of the square shell 1 and a clamping piece 9 rotatably arranged at the front part of the square shell 1, wherein the clamping piece 9 is positioned between the two U-shaped lugs 8;

the safety device 3 comprises a transverse plate 26 which is installed at the bottom of the inner top wall of the square shell 1 through two guide rods 27, a toothed rail 29 consisting of a plurality of toothed grooves is arranged at the bottom of the transverse plate 26, first springs 28 are sleeved outside the two guide rods 27, the upper ends of the first springs 28 are abutted to the inner top wall of the square shell 1, the bottom ends of the first springs 28 are abutted to the upper portion of the transverse plate 26, a vertical rod 48 is fixedly installed in the middle of the upper portion of the transverse plate 26, and the upper ends of the vertical rods 48 penetrate through the top wall of the square shell 1 and extend to the outer portion of the upper portion of the square shell 1 to be connected with a handle 5;

drive arrangement 4 includes through base 24 fixed mounting in the step motor 49 of the inside bottom of square shell 1, the one end fixed connection of shaft coupling 30 and lead screw 32 is passed through to step motor 49's axis of rotation, the other end of lead screw 32 is installed through first antifriction bearing 25 on the inside lateral wall of square shell 1, just the outside spiro union of lead screw 32 has square horizontal pole 11, the upper portion fixed mounting of square horizontal pole 11 with tooth 31 of rack 29 engaged with, just the one end of square horizontal pole 11 is run through guide way 12 extends to the front portion of square shell 1 is outside.

By adopting the technical scheme, the fixing device 2 is matched with the slot 10 to fix the injector, and the clamping piece 9 is arranged to ensure that the operation of fixing the injector is simple, convenient and quick; the safety device 3 is used for playing a safety role, and can prevent the driving device from driving the injector to reversely operate when the driving device fails, so that the driving device is prevented from driving the injector to extract blood of a patient, and the life safety of the patient can be effectively ensured; the driving device 4 is used for driving the injector to inject liquid medicine into the blood vessel of the patient, and when the tooth grooves on the tooth track 29 are meshed with the teeth 31, the square cross rod 11 can only move to the position close to the fixing device 2, so that the safety effect is achieved, and the driving device can be prevented from driving the injector to extract the blood of the patient.

Preferably, the square cross bar 11 is located the outside one end in square shell 1 front portion is close to the draw-in groove 19 has been seted up on a side of the piece 9 is held to the card, just the square cross bar 11 is located the outside one end in square shell 1 front portion is kept away from hold and install adjusting bolt 23 through second antifriction bearing 22 on a side of piece 9, adjusting bolt 23 is close to the outside spiro union of one end of draw-in groove 19 has sleeve 21, sleeve 21 movable mounting be in the inside of square cross bar 11, the inside activity of draw-in groove 19 is provided with square rubber slab 20, a side of square rubber slab 20 with sleeve 21 is kept away from an end fixed connection of adjusting bolt 23. When fixing the syringe, can hold the piston handle card of syringe in the inside of draw-in groove 19, and utilize adjusting bolt 23 to adjust the position of square rubber slab 20 in draw-in groove 19 inside, and then utilize square rubber slab 20 to push down the piston handle of syringe, can prevent that the piston handle of syringe and square horizontal pole 11 are located the outside tip in square shell 1 front portion and break away from, thereby guarantee that drive arrangement 4 stable drive syringe injects the liquid medicine into patient's blood vessel, can prevent to be located the outside tip in square shell 1 front portion and break away from and lead to the syringe to break off for patient's injection liquid medicine because of the piston handle of syringe and square horizontal pole 11, thereby eliminate the hidden danger that threatens patient's life safety.

Preferably, the holding member 9 comprises an inner rod 41 and a cylinder 37 fixedly installed on the front portion of the square housing 1, and a latch 36, wherein one end of the inner rod 41 away from the front portion of the square housing 1 is installed on one side surface of the circular slider 38 through a third rolling bearing 39, the circular slider 38 is movably installed inside the cylinder 37, a second spring 40 is sleeved outside the inner rod 41, one end of the second spring 40 abuts against one side surface of the circular slider 38, the other end of the second spring 40 abuts against an inner end wall of the cylinder 37, the latch 36 is fixedly installed on one end of the cylinder 37 away from the front portion of the square housing 1, and an arc-shaped groove is opened on one side surface of the latch 36 close to the front portion of the square housing 1. The clamping block 36 can rotate and can be pulled outwards, so that the syringe can be conveniently placed between the two U-shaped protrusions 8 and the arc-shaped groove, and the clamping block 36 can be restrained by the elasticity of the second spring 40 to compress the syringe, so that the fixing device 2 is simple, convenient, quick and efficient to operate.

Preferably, the guide rod 27 includes an outer sleeve rod 33 fixedly connected at an upper end thereof to the bottom of the inner top wall of the square housing 1, and a connecting rod 35 fixedly connected at a lower end thereof to the upper portion of the transverse plate 26, the outer sleeve rod 33 further movably has a guide block 34 therein, and an upper end of the connecting rod 35 extends into the inner portion of the outer sleeve rod 33 and is fixedly connected to the bottom of the guide block 34. The tooth groove on the tooth track 29 can be prevented from causing the transverse plate 26 to move when locking the teeth 31 so as to cause the first spring 28 to bend, thereby avoiding the teeth 31 from being separated from the tooth track 29, effectively ensuring the structural stability of the safety device 3 and further increasing the reliability of the safety device 3.

Preferably, a control switch 6 is further disposed on one side of the front portion of the square housing 1, and the control switch 6 is electrically connected to the stepping motor 49 through a wire. The operation of the stepping motor 49 is controlled by the control switch 6.

Preferably, a rear cover plate 15 is further installed at the rear portion of the square housing 1 through a screw 14, four fixing lugs 18 are symmetrically arranged at corners inside the square housing 1, and threaded holes matched with the screws 14 are formed in the four fixing lugs 18. The rear cover plate 15 is convenient to detach through the screws 14 in the later stage, the parts inside the square shell 1 are convenient to maintain, and the four fixing lugs 18 and the threaded holes are arranged so that the rear cover plate 15 can be conveniently installed through the screws 14.

Preferably, an Contraband-type bracket 16 is fixedly installed at the bottom of one end of the square cross bar 11 located inside the square outer shell 1, a roller 17 is rotatably installed inside the Contraband-type bracket 16, and the bottom of the roller 17 abuts against the inner bottom wall of the square outer shell 1. The roller 17 and the Contraband-shaped bracket 16 are matched to have a better supporting effect on the square cross rod 11, so that the square cross rod 11 can be prevented from generating downward pressure on the screw rod 32 to cause the screw rod 32 to generate bending deformation in the process that the teeth 31 move at the bottom of the rack 29, and further the stable movement of the square cross rod 11 along the screw rod 32 is ensured.

Preferably, a plurality of through holes 13 are uniformly formed on a side wall of the square housing 1 close to the stepping motor 49. The plurality of through holes 13 are used for dissipating heat of the stepping motor 49, and can prevent the stepping motor 49 from overheating during operation, so as to ensure stable operation of the stepping motor 49.

Preferably, four shock absorbing legs 7 are symmetrically arranged at the bottom corners of the square housing 1, the shock absorbing legs 7 include a cylinder 42 fixedly installed at the bottom of the square housing 1 and a circular rubber plate 47 located right below the cylinder 42, both ends of the cylinder 42 are of a closed structure, and the inside of the cylinder 42 is movably provided with a first slide block 44, a third spring 45, a second slide block 43 and a connecting column 46 from top to bottom in sequence, the upper end of the third spring 45 is abutted against the bottom of the first slide block 44, the bottom end of the third spring 45 is pressed against the upper part of the second slider 43, the upper end of the connecting column 46 is fixedly connected with the bottom of the second slider 43, and the bottom end of the connecting column 46 penetrates through the bottom wall of the cylinder 42 and extends to the outside of the bottom of the cylinder 42 to be fixedly connected with the upper part of a circular rubber plate 47. Under the action of the third spring 45, the shock absorbing support leg 7 has better elasticity, so that the device has better shock absorbing performance.

Example 2

The difference from the embodiment 1 is that further, the surface of the square housing 1 is further provided with an anticorrosive layer, and the anticorrosive layer is prepared by the following method:

weighing the following raw materials in parts by weight: 30 parts of epoxy resin, 12 parts of aluminium oxide powder, 15 parts of polyurethane, 6 parts of quartz powder, 18 parts of acrylic emulsion, 3 parts of paraffin, 8 parts of cobalt naphthenate, 1 part of silane coupling agent and 40 parts of water;

s1, adding the weighed paraffin, silane coupling agent, cobalt naphthenate, acrylic emulsion and water into a stirrer, and stirring for 15min at the stirring speed of 600r/min to obtain a mixed solution;

s3, adding the mixed solution prepared in the step S1 and the mixed powder material prepared in the step S2 into a reaction kettle, stirring for 20min at the stirring speed of 700r/min and at the temperature of 60 ℃, and preparing the anticorrosive paint;

s4, putting the square shell 1 into an ultrasonic cleaning machine for cleaning, wherein the frequency of the ultrasonic cleaning machine is set to be 50KHz, the temperature is set to be 40 ℃, and the cleaning time is 12 min;

s5, drying the square shell 1 cleaned in the step S4 by using a hot air blower, and then uniformly spraying the anticorrosive paint prepared in the step S3 on the surface of the dried square shell 1 by using a high-pressure sprayer spray gun;

and S6, drying the square shell 1 sprayed with the anticorrosive paint in the step S5 in a drying chamber, wherein the drying temperature is set to be 100 ℃, and the time is set to be 20min, so that the anticorrosive layer is prepared on the surface of the square shell 1.

Example 3

The difference from the example 2 lies in the preparation of the anticorrosive layer, and the specific preparation method is as follows:

weighing the following raw materials in parts by weight: 35 parts of epoxy resin, 15 parts of aluminium oxide powder, 18 parts of polyurethane, 8 parts of quartz powder, 22 parts of acrylic emulsion, 4 parts of paraffin, 10 parts of cobalt naphthenate, 2 parts of silane coupling agent and 50 parts of water;

s1, adding the weighed paraffin, silane coupling agent, cobalt naphthenate, acrylic emulsion and water into a stirrer, and stirring for 20min at the stirring speed of 700r/min to obtain a mixed solution;

s3, adding the mixed solution prepared in the step S1 and the mixed powder material prepared in the step S2 into a reaction kettle, stirring for 25min at the stirring speed of 800r/min and at the temperature of 65 ℃, and preparing the anticorrosive paint;

s4, putting the square shell 1 into an ultrasonic cleaning machine for cleaning, wherein the frequency of the ultrasonic cleaning machine is set to be 55KHz, the temperature is set to be 50 ℃, and the cleaning time is 15 min;

and S6, drying the square shell 1 sprayed with the anticorrosive paint in the step S5 in a drying chamber, wherein the drying temperature is set to be 110 ℃, and the time is set to be 25min, so that the anticorrosive layer is prepared on the surface of the square shell 1.

Example 4

weighing the following raw materials in parts by weight: 40 parts of epoxy resin, 18 parts of aluminium oxide powder, 20 parts of polyurethane, 10 parts of quartz powder, 26 parts of acrylic emulsion, 5 parts of paraffin, 12 parts of cobalt naphthenate, 3 parts of silane coupling agent and 60 parts of water;

s1, adding the weighed paraffin, silane coupling agent, cobalt naphthenate, acrylic emulsion and water into a stirrer, and stirring for 25min at the stirring speed of 800r/min to obtain a mixed solution;

s3, adding the mixed solution prepared in the step S1 and the mixed powder material prepared in the step S2 into a reaction kettle, stirring for 30min at the stirring speed of 900r/min and at the temperature of 70 ℃ to prepare the anticorrosive paint;

s4, putting the square shell 1 into an ultrasonic cleaning machine for cleaning, wherein the frequency of the ultrasonic cleaning machine is set to be 60KHz, the temperature is set to be 60 ℃, and the cleaning time is 18 min;

and S6, drying the square shell 1 sprayed with the anticorrosive paint in the step S5 in a drying chamber, wherein the drying temperature is set to 120 ℃, and the time is set to 30min, so that the anticorrosive layer is prepared on the surface of the square shell 1.

The results of comparing the salt spray tests performed on the square housings 1 of examples 1 to 4 in the laboratory under the same conditions are given in the following table:

	results of test 300h
		Example 1	The surface of the square housing 1 showed a clear sign of corrosion at 37h
Example 2	The surface of the square housing 1 showed slight signs of corrosion at 283h
		Example 3	The surface of the square housing 1 showed no signs of slight corrosion after 300h
Example 4	The surface of the square housing 1 showed slight corrosion at 289h

The result of the above-mentioned test shows that the embodiment 3 is the optimal embodiment, and by adopting the above technical scheme, the prepared anticorrosive paint has moderate viscosity, is not easy to delaminate, is convenient for spraying, has fully combined components and good comprehensive performance, so that the anticorrosive paint can form a good coating after spraying, and is not easy to crack, the prepared anticorrosive coating has good corrosion resistance and ageing resistance, has good adhesion and is not easy to fall off, and the surface of the square shell 1 can be effectively protected from corrosion, thereby prolonging the service life of the device.

The working principle is as follows: according to the medical device for the ICU intensive care unit, the fixing device 2 is matched with the slot 10 to be used for fixing the injector, and the clamping piece 9 is arranged to enable the operation of fixing the injector to be simple, convenient, rapid and efficient; the safety device 3 is used for playing a safety role, and can prevent the driving device from driving the injector to reversely operate when the driving device fails, so that the driving device is prevented from driving the injector to extract blood of a patient, and the life safety of the patient can be effectively ensured; the driving device 4 is used for driving the injector to inject liquid medicine into a blood vessel of a patient, when the injector is fixed, a piston handle of the injector can be clamped in the clamping groove 19, the position of the square rubber plate 20 in the clamping groove 19 is adjusted by the adjusting bolt 23, and the piston handle of the injector is pressed by the square rubber plate 20, so that the piston handle of the injector can be prevented from being separated from the end part of the square cross rod 11 positioned outside the front part of the square shell 1, the stable driving of the driving device 4 for injecting the liquid medicine into the blood vessel of the patient is ensured, the phenomenon that the injector is interrupted to inject the liquid medicine into the patient due to the separation of the piston handle of the injector and the end part of the square cross rod 11 positioned outside the front part of the square shell 1 is prevented, and the potential hazard; the guide rod 27 is arranged to prevent the transverse plate 26 from moving to bend the first spring 28 when the tooth grooves on the tooth rail 29 lock the teeth 31, so that the teeth 31 are prevented from being separated from the tooth rail 29, the structural stability of the safety device 3 is effectively ensured, and the reliability of the safety device 3 is improved; the roller 17 and the Contraband-shaped bracket 16 are matched to have a better supporting effect on the square cross rod 11, so that the square cross rod 11 can be prevented from generating downward pressure on the screw rod 32 to cause the screw rod 32 to generate bending deformation in the process that the teeth 31 move at the bottom of the rack 29, and the square cross rod 11 is further ensured to stably move along the screw rod 32, so that the driving device 4 is ensured to stably drive the injector to inject liquid medicine to a patient; the prepared anticorrosive coating has moderate viscosity, is not easy to layer, is convenient to spray, fully combines all components, has good comprehensive performance, can form a good coating after the anticorrosive coating is sprayed, is not easy to generate cracks, has good corrosion resistance and ageing resistance, has good adhesiveness, is not easy to fall off, can effectively protect the surface of the square shell 1 from being corroded, and thus, the service life of the device is prolonged;

during the use, the fixture block 36 is rotated upwards, the injector is placed in the concave parts of the two U-shaped convex blocks, then the fixture block 36 is pulled to rotate downwards, the injector is pressed tightly by the aid of the elastic force of the second spring 40, meanwhile, the handheld part of the injector is inserted into the slot 10, the piston handle of the injector is inserted into the slot 19, the position of the square rubber plate 20 in the slot 19 is adjusted by the aid of the adjusting bolt 23, the piston handle of the injector is pressed by the aid of the square rubber plate 20, then the stepping motor 49 is controlled to work by the control switch 6, when the square cross rod 11 needs to be moved to a position far away from the fixing device 2, the upright rod 48 is lifted only through the operating handle 5, teeth 31 and the toothed rail 29 are separated, and the square cross rod 11 can be moved to a position far away from the fixing device 2.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A medical device for an ICU intensive care unit, comprising a square housing (1), characterized in that: the safety device comprises a fixing device (2), a safety device (3) and a driving device (4), wherein the fixing device (2) is arranged on one side of the front part of the square shell (1), the safety device (3) and the driving device (4) are both arranged in the square shell (1), a guide groove (12) is formed in the other side of the front part of the square shell (1), and a slot (10) is formed in the front part of the square shell (1) between the fixing device (2) and the guide groove (12);

the fixing device (2) comprises two U-shaped lugs (8) fixedly arranged at the front part of the square shell (1) and a clamping piece (9) rotatably arranged at the front part of the square shell (1), and the clamping piece (9) is positioned between the two U-shaped lugs (8);

the safety device (3) comprises a transverse plate (26) which is arranged at the bottom of the inner top wall of the square shell (1) through two guide rods (27), a toothed rail (29) consisting of a plurality of toothed grooves is arranged at the bottom of the transverse plate (26), first springs (28) are sleeved outside the two guide rods (27), the upper ends of the first springs (28) are abutted to the inner top wall of the square shell (1), the bottom ends of the first springs (28) are abutted to the upper portion of the transverse plate (26), a vertical rod (48) is fixedly arranged in the middle of the upper portion of the transverse plate (26), and the upper end of the vertical rod (48) penetrates through the top wall of the square shell (1) and extends to the outer portion of the upper portion of the square shell (1) to be connected with a handle (5);

drive arrangement (4) include through base (24) fixed mounting step motor (49) of the inside bottom of square shell (1), the one end fixed connection of shaft coupling (30) and lead screw (32) is passed through to the axis of rotation of step motor (49), the other end of lead screw (32) is installed through first antifriction bearing (25) on the inside lateral wall of square shell (1), just the outside spiro union of lead screw (32) has square horizontal pole (11), the upper portion fixed mounting of square horizontal pole (11) have with rack (29) engaged with tooth (31), just the one end of square horizontal pole (11) is run through guide way (12) extend to the front portion outside of square shell (1).

2. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: square horizontal pole (11) are located the outside one end in square shell (1) front portion is close to card holds and has seted up draw-in groove (19) on the side of holding piece (9), just square horizontal pole (11) are located square shell (1) front portion outside one end is kept away from hold and install adjusting bolt (23) through second antifriction bearing (22) on the side of holding piece (9), adjusting bolt (23) are close to the outside spiro union of one end of draw-in groove (19) has sleeve (21), sleeve (21) movable mounting be in the inside of square horizontal pole (11), the inside activity of draw-in groove (19) is provided with square rubber slab (20), a side of square rubber slab (20) with sleeve (21) is kept away from an end fixed connection of adjusting bolt (23).

3. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: the holding piece (9) comprises an inner inserted rod (41) fixedly arranged at the front part of the square shell (1), a cylinder (37) and a fixture block (36), one end of the inner inserted rod (41) far away from the front part of the square shell (1) is arranged on one side surface of the circular sliding block (38) through a third rolling bearing (39), the circular sliding block (38) is movably arranged inside the cylinder (37), a second spring (40) is sleeved outside the inner inserted rod (41), one end of the second spring (40) is abutted against one side surface of the circular sliding block (38), and the other end of the second spring (40) is abutted against an inner end wall of the cylinder (37), the clamping block (36) is fixedly arranged at one end part of the cylinder (37) far away from the front part of the square shell (1), and an arc-shaped groove is formed in one side surface of the clamping block (36) close to the front part of the square shell (1).

4. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: the guide rod (27) comprises an outer sleeve rod (33) with the upper end fixedly connected with the bottom of the inner top wall of the square shell (1), a connecting rod (35) with the bottom fixedly connected with the upper portion of the transverse plate (26), a guide block (34) is movably arranged inside the outer sleeve rod (33), and the upper end of the connecting rod (35) extends into the inside of the outer sleeve rod (33) and is fixedly connected with the bottom of the guide block (34).

5. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: the square shell is characterized in that a control switch (6) is further arranged on one side of the front portion of the square shell (1), and the control switch (6) is electrically connected with the stepping motor (49) through a lead.

6. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: the rear portion of square shell (1) still installs back shroud (15) through screw (14), the inside corner symmetry of square shell (1) is equipped with four fixed ears (18), four the inside of fixed ear (18) all seted up with screw (14) assorted screw hole.

7. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: square horizontal pole (11) are located the inside one end bottom fixed mounting of square shell (1) has Contraband type support (16), the inside rotation of Contraband type support (16) installs gyro wheel (17), the bottom of gyro wheel (17) with the interior bottom wall of square shell (1) is contradicted.

8. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: a plurality of through holes (13) are uniformly formed in one side wall, close to the stepping motor (49), of the square shell (1).

9. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: the bottom corner symmetry of square shell (1) is equipped with four shock attenuation stabilizer blades (7), shock attenuation stabilizer blade (7) include fixed mounting be in the barrel (42) of the bottom of square shell (1) and be located circular rubber slab (47) under barrel (42), the both ends of barrel (42) are enclosed construction, just the inside of barrel (42) is from last to having first slider (44), third spring (45), second slider (43) and spliced pole (46) down in proper order movable mounting, the upper end of third spring (45) with the bottom of first slider (44) is contradicted, just the bottom of third spring (45) with the upper portion of second slider (43) is inconsistent, the upper end of spliced pole (46) with the bottom fixed connection of second slider (43), just the bottom of spliced pole (46) runs through the diapire of barrel (42) extends to the bottom outside and circular rubber of barrel (42) is contradicted The upper parts of the rubber plates (47) are fixedly connected.

10. A medical device for an ICU intensive care unit as set forth in claim 1, wherein: the surface of the square shell (1) is also provided with an anticorrosive coating, and the anticorrosive coating is prepared by the following method:

s4, putting the square shell (1) into an ultrasonic cleaning machine for cleaning, wherein the frequency of the ultrasonic cleaning machine is set to be 50-60KHz, the temperature is set to be 40-60 ℃, and the cleaning time is 12-18 min;

s5, drying the square shell (1) cleaned in the step S4 by using a hot air blower, and then uniformly spraying the anticorrosive paint prepared in the step S3 on the surface of the dried square shell (1) by using a high-pressure sprayer spray gun;

s6, drying the square shell (1) sprayed with the anticorrosive paint in the step S5 in a drying chamber at the drying temperature of 100 ℃ and 120 ℃ for 20-30min, and thus obtaining the anticorrosive layer on the surface of the square shell (1).