Disinfection device for medical apparatus and instruments and use method of disinfection device

Abstract

The invention discloses a disinfection device for medical instruments and a use method thereof, and relates to the field of medical instrument disinfection, the disinfection device comprises a sterilization cabin A and a sterilization cabin B. The sterilization cabin A and the sterilization cabin B are both provided with an exhaust pipe and a drainage pipe, and the exhaust pipe and the drainage pipe are both provided with a valve A. The disinfection device further comprises a branch pipe A, a branch pipe B, an air pipe and a steam generator, the inlet end of the air pipe is communicated with the output end of the steam generator, the branch pipe A and the branch pipe B are both provided with valves B, one end of the branch pipe A is communicated with the interior of the sterilization cabin A, and one end of the branch pipe B is communicated with the interior of the sterilization cabin B; according to the disinfection device for the medical apparatus and the use method thereof, steam is guided through the flow guide mechanism, so that the steam can enter the sterilization cabin A while entering the sterilization cabin B, and the problems that most of the steam enters the sterilization cabin B under the action of pressure difference due to relatively high air pressure in the sterilization cabin A, the pressure in the sterilization cabin A is slowly increased, and the steam cannot enter the sterilization cabin A are solved. And the sterilization and disinfection efficiency of the medical apparatus and instruments is reduced.

Description

Technical Field

[0001] This invention relates to medical device disinfection technology, specifically to a disinfection device for medical devices and its usage method. Background Technology

[0002] Currently, steam is commonly used for sterilizing medical devices. In order to save costs, a steam generator is usually installed and multiple sterilization chambers are connected in series through pipes to increase the sterilization capacity of medical devices.

[0003] For example, Chinese Patent CN114225059B discloses a dual-chamber pulsed vacuum pressure steam sterilizer and sterilization method. The dual-chamber pulsed vacuum pressure steam sterilizer and sterilization method set up two sterilization chambers and use the same steam source for steam sterilization. When sterilization is carried out in one sterilization chamber, it can be sterilized in a closed manner, while the other sterilization chamber can be loaded and unloaded, thereby improving sterilization efficiency.

[0004] During steam sterilization, the sterilization chamber needs to be maintained at a certain pressure for a period of time. When one sterilization chamber is being pressurized while the other is still venting its gas, the pressure in the chamber being pressurized is higher than that in the other. If both air inlets are opened at the same time, the pressure difference makes it difficult for steam to enter the chamber with higher pressure, and it also causes the pressure in the chamber with higher pressure to drop. As a result, the chamber with higher pressure can only be pressurized and sterilized again when the pressures in the two chambers are equal, which reduces the efficiency of sterilizing medical devices. Summary of the Invention

[0005] The purpose of this invention is to provide a sterilization device for medical devices and its method of use, so as to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sterilization device for medical devices, comprising a sterilization chamber A and a sterilization chamber B, both of which are equipped with an exhaust pipe and a drain pipe, and both the exhaust pipe and the drain pipe are equipped with valve A. The device also includes a branch pipe A, a branch pipe B, an air pipe, and a steam generator. The inlet end of the air pipe is connected to the output end of the steam generator. Both the branch pipe A and the branch pipe B are equipped with valve B. One end of the branch pipe A is connected to the interior of the sterilization chamber A, one end of the branch pipe B is connected to the interior of the sterilization chamber B, and the other ends of the branch pipe A and the branch pipe B are respectively connected to the outlet end of the air pipe.

[0007] Two flow guiding mechanisms are used to guide the steam transported by the gas pipe to the A branch pipe and the B branch pipe respectively. The flow guiding mechanism includes a fan blade, and a drive shaft is fixedly connected to one end of the fan blade's rotating shaft.

[0008] A rotary drive mechanism is used to drive the transmission shafts in the two guide mechanisms to rotate around their own axes.

[0009] Furthermore, the rotary drive mechanism includes a main shaft and a transmission belt A. The main shaft is connected to two secondary shafts via the transmission belt A. The two secondary shafts are respectively connected to a transmission mechanism. The two transmission mechanisms are respectively connected to two transmission shafts. One end of the main shaft is connected to a rotary drive component A that drives it to rotate around its own axis.

[0010] Furthermore, the transmission mechanism includes two wheel sets, a B transmission belt, and an adjustment mechanism. The two wheel sets are connected by the B transmission belt. Each wheel set includes a support circular plate, a sleeve, and multiple arc-shaped groove plates. The multiple arc-shaped groove plates are arranged in a circumferential array around the central axis of the support circular plate. A limit rod is fixedly connected to one side of the arc-shaped groove plate. The limit rod is slidably connected to the outside of the adjacent support circular plate. A support rod is hinged to the side of the limit rod. The end of the support rod is hinged to the sleeve. One side of the support circular plate is fixedly connected to the adjacent transmission shaft, and the other side of the support circular plate is fixedly connected to the adjacent transmission shaft.

[0011] The adjusting mechanism is used to drive the sleeves in the two wheel sets to move in opposite directions along their axial direction.

[0012] Furthermore, the adjustment mechanism includes a transmission gear, with racks meshing on both sides of the transmission gear. Push plates are fixedly connected to the ends of the two racks. Guide rods are fixedly connected to the sides of the push plates. A bracket is slidably connected to the outside of the guide rods. A housing is fixedly connected to the outside of the brackets. The end of the push plate is rotatably connected to an adjacent sleeve. A limit rod is movably connected inside the sleeve. One end of the limit rod is rotatably connected to an adjacent support disc, and the other end of the limit rod is fixedly connected to the housing.

[0013] Furthermore, it also includes two horizontal shafts, one end of which is fixedly connected to an adjacent transmission gear, and the other end of each horizontal shaft is fixedly connected to an A helical gear. The two A helical gears are meshed with the same B helical gear on one side, and the B helical gear is connected to a B rotary drive component that drives it to rotate around its own axis.

[0014] Furthermore, the adjustment mechanism includes two telescopic drive components. The moving ends of the two telescopic drive components are fixedly connected to adjacent connecting plates, one side of the connecting plate is rotatably connected to the sleeve, and the fixed ends of the telescopic drive components are fixedly connected to sterilization chamber A or sterilization chamber B through brackets.

[0015] Furthermore, both sterilization chamber A and sterilization chamber B have openings, and each opening has a door that can be opened and closed.

[0016] A method of using a sterilization device for medical devices, applicable to the above-described sterilization device for medical devices, includes the following steps:

[0017] S1. First, determine the working mode of the device. If sterilization chamber A and sterilization chamber B simultaneously disinfect and sterilize medical devices, then proceed to step S2.

[0018] If sterilization chamber A performs sterilization work first, and then sterilization chamber B performs sterilization work next, then proceed to step S3;

[0019] S2. Place the medical devices to be sterilized in sterilization chamber A and sterilization chamber B, open the two valves B, start the steam generator, and when the pressure in sterilization chamber A and sterilization chamber B rises to 103-137 kPa and the temperature reaches 121-126℃, maintain this for 20-30 minutes, then proceed to step S5.

[0020] S3. Place the medical device to be sterilized in sterilization chamber A, close valve B on branch pipe B, open valve B on branch pipe A, start the steam generator, and when sterilizing the medical device in sterilization chamber B, place the medical device to be sterilized in sterilization chamber B, open valve B on branch pipe B, and proceed to step S4.

[0021] S4. Start the rotary drive mechanism and control the rotation speed of the two fan blades through the rotary drive mechanism so that the rotation speed of the fan blade in the A branch pipe is greater than the rotation speed of the fan blade in the B branch pipe. When the pressure in the A sterilization chamber and the B sterilization chamber rises to 103-137 kPa and the temperature reaches 121-126℃, maintain it for 20-30 minutes and then proceed to step S5.

[0022] S5. Turn off the steam generator and wait for the temperature inside sterilization chambers A and B to cool to room temperature. Remove the medical devices from sterilization chambers A and B to complete the sterilization of the medical devices.

[0023] Compared with the prior art, the sterilization device for medical devices provided by the present invention guides the steam through a flow guiding mechanism, so that the steam can enter the sterilization chamber A at the same time as entering the sterilization chamber B. This avoids the situation where the steam enters the sterilization chamber B due to the high air pressure in the sterilization chamber A, while the pressure rise in the sterilization chamber A is slow, which would reduce the sterilization efficiency of medical devices.

[0024] The present invention provides a sterilization device for medical devices, which reduces the need for a synchronous control system by setting up a transmission mechanism and an adjustment mechanism, thereby effectively reducing the interference of factors such as temperature and humidity on the stability of the device.

[0025] The present invention provides a method for using a sterilization device for medical devices. By controlling the different rotation speeds of the two fan blades, even when the air pressures in sealed chambers A and B are inconsistent, steam can be simultaneously guided into sealed chambers A and B. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the overall external structure provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of a first partial cross-sectional structure provided in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of a second partial cross-sectional structure provided in an embodiment of the present invention;

[0030] Figure 4 A schematic diagram showing the combination of the flow guiding mechanism, transmission mechanism, horizontal shaft, B transmission belt, and adjustment mechanism provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram showing the combination of the horizontal shaft, helical gear A, helical gear B, rotary drive component B, bracket, and transmission gear provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram showing the combination of the main shaft, A transmission belt, secondary shaft, and A rotary drive component provided in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Sterilization chamber A; 2. Sterilization chamber B; 3. Exhaust pipe; 4. Drain pipe; 5. Branch pipe A; 6. Branch pipe B; 7. Steam generator; 71. Gas pipe; 8. Valve B; 9. Flow guiding mechanism; 91. Fan blade; 92. Drive shaft; 10. Rotary drive mechanism; 11. Main shaft; 12. Drive belt A; 13. Secondary shaft; 14. Transmission mechanism; 141. Wheel set; 1411. Support plate; 1412. Sleeve ; 1413, Arc-shaped groove plate; 1414, Limiting rod; 1415, Support rod; 142, B Transmission belt; 143, Adjustment mechanism; 1431, Transmission gear; 1432, Rack; 1433, Push plate; 1434, Guide rod; 1435, Bracket; 1436, Housing; 15, A Rotary drive component; 16, Horizontal shaft; 17, A Helical gear; 18, B Helical gear; 19, B Rotary drive component. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Please see Figures 1-6 A sterilization device for medical devices includes a sterilization chamber A 1 and a sterilization chamber B 2. Both sterilization chamber A 1 and sterilization chamber B 2 are equipped with an exhaust pipe 3 and a drain pipe 4. Both exhaust pipe 3 and drain pipe 4 are equipped with valve A. The device also includes a branch pipe A 5, a branch pipe B 6, an air pipe 71, and a steam generator 7. The inlet end of the air pipe 71 is connected to the output end of the steam generator 7. Both branch pipe A 5 and branch pipe B 6 are equipped with valve B 8. One end of branch pipe A 5 is connected to the interior of sterilization chamber A 1, one end of branch pipe B 6 is connected to the interior of sterilization chamber B 2, and the other ends of branch pipe A 5 and branch pipe B 6 are respectively connected to the outlet end of air pipe 71.

[0037] Two flow guiding mechanisms 9 are used to guide the steam transported by the gas pipe 71 to the A branch pipe 5 and the B branch pipe 6 respectively. The flow guiding mechanism 9 includes a fan blade 91, and a drive shaft 92 is fixedly connected to one end of the rotating shaft of the fan blade 91.

[0038] A rotary drive mechanism 10 is used to drive the transmission shafts 92 in the two guide mechanisms 9 to rotate around their own axes respectively;

[0039] Two fan blades 91 are installed in A branch pipe 5 and B branch pipe 6 respectively. Steam generator 7 produces steam and delivers it to A branch pipe 5 and B branch pipe 6 through air pipe 71. The two fan blades 91 are driven to rotate by the rotary drive mechanism 10. The rotation of the fan blades 91 provides power for the flow of steam, so that the steam enters A branch pipe 5 and B branch pipe 6 respectively, and then enters A sterilization chamber 1 and B sterilization chamber 2.

[0040] When medical devices are placed in sterilization chamber 1 (A) and sterilization chamber 2 (B) for sterilization and disinfection, two valves 8 (B) are opened at the same time, and steam enters sterilization chamber 1 (A) and sterilization chamber 2 (B) through branch pipes 5 (A) and 6 (B) respectively.

[0041] In one embodiment of the present invention, the rotary drive mechanism 10 includes a main shaft 11 and an A transmission belt 12. The main shaft 11 is connected to two secondary shafts 13 via the A transmission belt 12. The two secondary shafts 13 are respectively connected to a transmission mechanism 14. The two transmission mechanisms 14 are respectively connected to two transmission shafts 92. One end of the main shaft 11 is connected to an A rotary drive member 15 that drives it to rotate around its own axis.

[0042] A rotary drive component 15 drives the main shaft 11 to rotate. Two transmission wheels are sleeved on the outside of the main shaft 11. One transmission wheel on the main shaft 11 and one transmission wheel on one of the auxiliary shafts 13 are on the same plane, forming a set of transmission wheels 141. The other transmission wheel on the main shaft 11 and the transmission wheel on the other auxiliary shaft 13 are on the same plane, forming another set of transmission wheels 141. Two A transmission belts 12 are respectively sleeved on the two sets of transmission wheels 141, so that when the main shaft 11 rotates, the two auxiliary shafts 13 rotate synchronously and in the same direction.

[0043] In one embodiment of the present invention, the A rotary drive 15 is a motor or a rotary cylinder, the output shaft end of the A rotary drive 15 is fixedly connected to one end of the main shaft 11, and the A rotary drive 15 is fixed by a bracket 1435.

[0044] In one embodiment of the present invention, the transmission mechanism 14 includes two wheel sets 141, a B transmission belt 142, and an adjustment mechanism 143. The two wheel sets 141 are connected by the B transmission belt 142. Each wheel set 141 includes a supporting circular plate 1411, a sleeve 1412, and a plurality of arc-shaped groove plates 1413. The plurality of arc-shaped groove plates 1413 are arranged in a circumferential array around the central axis of the supporting circular plate 1411. A limit rod 1414 is fixedly connected to one side of each arc-shaped groove plate 1413. The outer side of the limit rod 1414 is adjacent to the... The supporting circular plate 1411 is slidably connected, and the limiting rod 1414 is hinged to the side of the supporting rod 1415. The end of the supporting rod 1415 is hinged to the sleeve 1412. The side of one of the supporting circular plates 1411 is fixedly connected to the adjacent transmission shaft 92, and the central axis of the supporting circular plate 1411 is collinear with the central axis of the adjacent transmission shaft 92. The side of the other supporting circular plate 1411 is fixedly connected to the adjacent transmission shaft 92, and the central axis of the supporting circular plate 1411 is collinear with the central axis of the adjacent transmission shaft 92.

[0045] Adjustment mechanism 143 is used to drive the sleeves 1412 in the two wheel sets 141 to move in opposite directions along their axial direction;

[0046] When the sleeve 1412 moves along its axial direction, the sleeve 1412 drives the end of the support rod 1415 to move. Since the limiting rod 1414 is slidably connected to the support circular plate 1411, the support rod 1415 drives the arc-shaped groove plate 1413 to move through the limiting rod 1414, thereby adjusting the distance between the center of the arc-shaped groove plate 1413 and the center of the support circular plate 1411. The B transmission belt 142 is sleeved on the outside of multiple arc-shaped groove plates 1413. The two wheel sets 141 and the B transmission belt 142 are equivalent to a pulley set. It is equivalent to changing the rotation speed of the transmission shaft 92 by adjusting the diameter of the pulley, thereby changing the rotation speed of the fan blade 91. Thus, the flow rate and flow rate of steam entering the A sterilization chamber 1 or B sterilization chamber 2 can be changed according to the air pressure in the A sterilization chamber 1 and B sterilization chamber 2, making it more applicable.

[0047] In one embodiment of the present invention, the adjusting mechanism 143 includes a transmission gear 1431, with racks 1432 meshing on both sides of the transmission gear 1431. Push plates 1433 are fixedly connected to the ends of the two racks 1432. Guide rods 1434 are fixedly connected to the sides of the push plates 1433. A bracket 1435 is slidably connected to the outside of the guide rods 1434. A shell 1436 is fixedly connected to the outside of the bracket 1435. The protective shell is fixedly connected to sterilization chamber A 1 and sterilization chamber B 2 respectively. The end of the push plate 1433 is rotatably connected to an adjacent sleeve 1412. A limiting rod 1414 is movably connected inside the sleeve 1412. The sleeve 1412 can rotate around its own axis and move along its own axis relative to the limiting rod 1414. One end of the limiting rod 1414 is rotatably connected to an adjacent support disc, and the other end of the limiting rod 1414 is fixedly connected to the shell 1436.

[0048] Since the rack 1432 is fixedly connected to the push plate 1433 and the guide rod 1434 is slidably connected to the push plate 1433, when the transmission gear 1431 rotates, the transmission gear 1431 drives the two racks 1432 to move in opposite directions. When the racks 1432 move, they will drive the sleeves 1412 to move through the push plate 1433. Thus, the two sleeves 1412 in the same gear set 141 move in opposite directions, so that the arc groove plates 1413 in the two gear sets 141 move synchronously. This is equivalent to the diameter of the two pulleys in the pulley set becoming larger and smaller, thereby changing the rotation speed of the transmission shaft 92.

[0049] In one embodiment of the present invention, two horizontal shafts 16 are further included. One end of the two horizontal shafts 16 is fixedly connected to an adjacent transmission gear 1431, and the other end of the two horizontal shafts 16 is fixedly connected to an A helical gear 17. The two A helical gears 17 are meshed with the same B helical gear 18 on one side. The B helical gear 18 is connected to a B rotary drive 19 that drives it to rotate around its own axis.

[0050] The B rotary drive 19 drives the B helical gear 18 to rotate, which in turn drives the two A helical gears 17 to rotate in opposite directions. This causes the two transmission gears 1431 to rotate in opposite directions, resulting in the sleeves 1412 in the two guide mechanisms 9 moving in opposite directions. Consequently, the rotational speeds of the two transmission shafts 92 change synchronously, and when the rotational speed of one transmission shaft 92 increases, the rotational speed of the other transmission shaft 92 decreases. This causes the rotational speeds of the two fan blades 91 to change synchronously. During pressurization sterilization in sterilization chamber 1 and exhaust in sterilization chamber 2, the rotational speeds of the two fan blades 91 are changed to guide the steam transported by the air pipe 71. This allows the steam to enter sterilization chamber 1 while simultaneously entering sterilization chamber 2, preventing the situation where the pressure in sterilization chamber 1 is high and most of the steam enters sterilization chamber 2 due to the pressure difference, resulting in slow pressure increase in sterilization chamber 1 and reduced sterilization efficiency of medical devices.

[0051] By setting up the transmission mechanism 14 and the adjustment mechanism 143, the setting of the synchronous control system is reduced, which can effectively reduce the interference of factors such as temperature and humidity on the stability of the device.

[0052] In one embodiment of the present invention, the adjustment mechanism 143 includes two telescopic drive members. The moving ends of the two telescopic drive members are respectively fixedly connected to adjacent connecting plates. One side of the connecting plate is rotatably connected to the sleeve 1412. The fixed ends of the telescopic drive members are fixedly connected to sterilization chamber A 1 or sterilization chamber B 2 through bracket 1435.

[0053] A method of using a sterilization device for medical devices includes the following steps:

[0054] S1. First, determine the working mode of the device. If sterilization chamber A 1 and sterilization chamber B 2 simultaneously disinfect and sterilize medical devices, then proceed to step S2.

[0055] If sterilization chamber A 1 performs sterilization work first, and then sterilization chamber B 2 performs sterilization work next, then proceed to step S3.

[0056] S2. Place the medical devices to be sterilized in sterilization chamber A 1 and sterilization chamber B 2, open the two B valves 8, start the steam generator 7, and when the pressure in sterilization chamber A 1 and sterilization chamber B 2 rises to 103-137 kPa and the temperature reaches 121-126℃, maintain this for 20-30 minutes, and then proceed to step S5.

[0057] S3. Place the medical device to be sterilized in sterilization chamber A 1, close valve B 8 on branch pipe B 6, open valve B 8 on branch pipe A 5, start steam generator 7, and when sterilizing the medical device in sterilization chamber B 2, place the medical device to be sterilized in sterilization chamber B 2, open valve B 8 on branch pipe B 6, and proceed to step S4.

[0058] S4. Start the rotary drive mechanism 10 and control the rotation speed of the two fan blades 91 through the rotary drive mechanism 10 so that the rotation speed of the fan blade 91 located in the A branch pipe 5 is greater than the rotation speed of the fan blade 91 located in the B branch pipe 6. When the pressure in the A sterilization chamber 1 and the B sterilization chamber 2 rises to 103-137 kPa and the temperature reaches 121-126℃, maintain it for 20-30 minutes and then proceed to step S5.

[0059] S5. Turn off the steam generator 7 and wait for the temperature inside sterilization chambers A1 and B2 to cool down to room temperature. Remove the medical devices from sterilization chambers A1 and B2 to complete the sterilization of the medical devices.

[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sterilization device for medical devices, comprising a sterilization chamber A (1) and a sterilization chamber B (2), wherein both sterilization chamber A (1) and sterilization chamber B (2) are equipped with an exhaust pipe (3) and a drain pipe (4), and both the exhaust pipe (3) and the drain pipe (4) are equipped with a valve A, characterized in that, It also includes A branch pipe (5), B branch pipe (6), air pipe (71) and steam generator (7). The inlet end of the air pipe (71) is connected to the output end of the steam generator (7). Both A branch pipe (5) and B branch pipe (6) are equipped with B valve (8). One end of A branch pipe (5) is connected to the inside of A sterilization chamber (1), and one end of B branch pipe (6) is connected to the inside of B sterilization chamber (2). The other ends of A branch pipe (5) and B branch pipe (6) are respectively connected to the outlet end of air pipe (71). Two flow guiding mechanisms (9) are used to guide the steam transported by the gas pipe (71) to the A branch pipe (5) and the B branch pipe (6) respectively. The flow guiding mechanism (9) includes a fan blade (91), and a drive shaft (92) is fixedly connected to one end of the rotating shaft of the fan blade (91). A rotary drive mechanism (10) is used to drive the drive shafts (92) in the two guide mechanisms (9) to rotate around their own axes.

2. The sterilization device for medical devices according to claim 1, characterized in that, The rotary drive mechanism (10) includes a main shaft (11) and an A transmission belt (12). The main shaft (11) is connected to two secondary shafts (13) via the A transmission belt (12). The two secondary shafts (13) are respectively connected to a transmission mechanism (14). The two transmission mechanisms (14) are respectively connected to two transmission shafts (92). One end of the main shaft (11) is connected to an A rotary drive component (15) that drives it to rotate around its own axis.

3. The sterilization device for medical devices according to claim 2, characterized in that, The transmission mechanism (14) includes two wheel sets (141), a B transmission belt (142), and an adjustment mechanism (143). The two wheel sets (141) are connected by the B transmission belt (142). The wheel set (141) includes a supporting circular plate (1411), a sleeve (1412), and multiple arc-shaped groove plates (1413). The multiple arc-shaped groove plates (1413) are arranged in a circumferential array around the central axis of the supporting circular plate (1411). A limiting rod (1414) is fixedly connected to one side. The limiting rod (1414) is slidably connected to the outside of the adjacent support circular plate (1411). A support rod (1415) is hinged to the side of the limiting rod (1414). The end of the support rod (1415) is hinged to the sleeve (1412). One side of the support circular plate (1411) is fixedly connected to the adjacent transmission shaft (92), and the other side of the support circular plate (1411) is fixedly connected to the adjacent transmission shaft (92). The adjusting mechanism (143) is used to drive the sleeves (1412) in the two wheel sets (141) to move in opposite directions along their axial direction.

4. The sterilization apparatus for medical instruments according to claim 3, wherein The adjusting mechanism (143) includes a transmission gear (1431), with racks (1432) meshing on both sides of the transmission gear (1431). Push plates (1433) are fixedly connected to the ends of the two racks (1432). Guide rods (1434) are fixedly connected to the sides of the push plates (1433). A bracket (1435) is slidably connected to the outside of the guide rods (1434). A housing (1436) is fixedly connected to the outside of the brackets (1435). The end of the push plate (1433) is rotatably connected to the adjacent sleeve (1412). A limit rod (1414) is movably connected inside the sleeve (1412). One end of the limit rod (1414) is rotatably connected to the adjacent support disc, and the other end of the limit rod (1414) is fixedly connected to the housing (1436).

5. The sterilization apparatus for medical instruments according to claim 4, wherein It also includes two horizontal shafts (16), one end of which is fixedly connected to an adjacent transmission gear (1431), and the other end of each horizontal shaft (16) is fixedly connected to an A helical gear (17). The two A helical gears (17) are meshed with the same B helical gear (18) on one side, and the B helical gear (18) is connected to a B rotary drive (19) that drives it to rotate around its own axis.

6. The sterilization apparatus for medical instruments according to claim 3, wherein The adjustment mechanism (143) includes two telescopic drive components. The moving ends of the two telescopic drive components are fixedly connected to adjacent connecting plates respectively. One side of the connecting plate is rotatably connected to the sleeve (1412). The fixed ends of the telescopic drive components are fixedly connected to sterilization chamber A (1) or sterilization chamber B (2) through bracket (1435).

7. The medical instrument sterilization apparatus of claim 1, wherein, Both sterilization chamber A (1) and sterilization chamber B (2) have openings, and the openings are equipped with doors that can be opened and closed.

8. A method of using a sterilization apparatus for medical instruments, characterized in that, The sterilization device for medical devices according to any one of claims 1-7 comprises the following steps: S1. First, determine the working mode of the device. If sterilization chamber A (1) and sterilization chamber B (2) simultaneously disinfect and sterilize medical devices, then proceed to step S2. If sterilization chamber A (1) performs sterilization work first, and then sterilization chamber B (2) performs sterilization work next, then proceed to step S3; S2. Place the medical devices to be sterilized in sterilization chamber A (1) and sterilization chamber B (2), open the two B valves (8), start the steam generator (7), and when the pressure in sterilization chamber A (1) and sterilization chamber B (2) rises to 103-137 kPa and the temperature reaches 121-126°C, maintain this for 20-30 minutes before proceeding to step S5. S3. Place the medical device to be disinfected in sterilization chamber A (1), close valve B (8) on branch pipe B (6), open valve B (8) on branch pipe A (5), start steam generator (7), and when sterilizing the medical device in sterilization chamber B (2), place the medical device to be disinfected in sterilization chamber B (2), open valve B (8) on branch pipe B (6), and proceed to step S4. S4. Start the rotary drive mechanism (10) and control the rotation speed of the two fan blades (91) through the rotary drive mechanism (10) so that the rotation speed of the fan blade (91) in the A branch pipe (5) is greater than the rotation speed of the fan blade (91) in the B branch pipe (6). When the pressure in the A sterilization chamber (1) and the B sterilization chamber (2) rises to 103-137 kPa and the temperature reaches 121-126°C, maintain it for 20-30 minutes and then proceed to step S5. S5. Turn off the steam generator (7), wait for the temperature inside sterilization chamber A (1) and sterilization chamber B (2) to cool down to room temperature, and remove the medical devices from sterilization chamber A (1) and sterilization chamber B (2) to complete the sterilization of the medical devices.

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