Inflation device for colon CT (Computed Tomography) contrast examination

Abstract

The invention discloses an inflation device for colon CT radiography examination, and relates to the technical field of examination instruments, the inflation device comprises a shell assembly, a fixing sleeve, a release assembly and a fixing assembly, the shell assembly comprises a shell, the end face of the shell is fixedly connected with a sealing cover, and the outer surface of the sealing cover is slidably connected with an insertion rod in a penetrating mode. According to the device, when a patient is subjected to colon CT radiography examination, the round head is aligned to the anus position of the patient, and after the multiple suction cups are attached to the hip skin, the whole device is in a relatively balanced state and fixed to the anus position of the patient; a medical worker only needs to take the device to be adsorbed to the hip skin position of a patient, then the handle is pushed and pulled in sequence, the piston is driven by the handle to move, rectum pushing of the movable cannula and air outlet of the round head position can be completed, and the colon inflation operation is made to be convenient and rapid.

Description

Technical Field

[0001] The present invention relates to the technical field of inspection instruments, and specifically relates to an inflation device for colon CT imaging examination. Background Art

[0002] Colon inflation CT imaging is a CT examination. The inflation device can inject gas into the patient's colon through the anus to fully expand the intestinal tract to achieve high-quality examination results.

[0003] In the prior art, when the inflation device is used, its operation is relatively cumbersome. It is necessary to sequentially complete the advancement of the intubation and insert it into the rectum. After inserting it in place to the colon position, the inflation operation is then carried out. Under the cumbersome operation steps, the inflation operation will take more time, affecting the convenience of using the device.

[0004] Therefore, an inflation device for colon CT imaging examination is proposed to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide an inflation device for colon CT imaging examination to solve the problem that when the inflation device in the above background art is used, its operation is relatively cumbersome. It is necessary to sequentially complete the advancement of the intubation and insert it into the rectum. After inserting it in place to the colon position, the inflation operation is then carried out. Under the cumbersome operation steps, the inflation operation will take more time, affecting the convenience of using the device.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An inflation device for colon CT imaging examination, including a housing assembly, a fixed sleeve, a release assembly, and a fixing assembly. The housing assembly includes a housing. A cover is fixedly connected to the end face of the housing. The cover, a plug rod is slidably connected through the outer surface of the cover. A grip is fixedly connected to the end face of the plug rod. A piston is fixedly connected to the other end face of the plug rod. The piston is located inside the housing. The outer surface of the piston fits with the inner surface of the housing. The fixed sleeve is fixedly connected to the other end face of the housing. The fixed sleeve is in a communicating state with the housing. An active intubation is inserted into the inner surface of the fixed sleeve. A round head is fixedly connected to the end face of the active intubation. The release assembly is fixedly connected to the outer surface of the fixed sleeve. The release assembly includes a fixing ring. The number of the fixing assemblies is set to be multiple. The multiple fixing assemblies are uniformly fixedly connected to the outer surface of the fixed sleeve. The fixing assembly includes a fixing seat. A box body is fixedly connected to the outer surface of the fixing seat.

[0007] Preferably, an anti-slip sleeve is fixedly connected to the outer surface of the housing. A first one-way valve is fixedly connected to the outer surface of the cover. A second one-way valve is fixedly connected to the outer surface of the piston on the side away from the cover. The first one-way valve and the second one-way valve are provided in a matching manner.

[0008] Preferably, connection seats are symmetrically and fixedly connected to the bottom inside the housing. First springs are symmetrically and fixedly connected to the bottom inside the connection seats. A limiting block is fixedly connected between the end faces of the two first springs. A clamping groove is formed on the outer surface of the limiting block. A moving rod is fixedly connected to the outer surface of the limiting block. The moving rod sequentially slides through the connection seat and the housing and extends to the outside. A pressing plate is fixedly connected between the end faces of the two moving rods. An arc surface is arranged on the outer surface of the limiting block close to the cover.

[0009] By adopting the above technical solution, as the piston continues to advance, the round head and the movable cannula will be inserted into the rectum from the patient's anal position. At this time, the side plate drives the side frame and the clamping block to displace to a position close to the connection seat. At this time, the clamping block will contact the arc surface position of the limiting block. The clamping block will cause pressure on the limiting block at this time. After being oppressed, the limiting block will suppress the first spring to contract.

[0010] Preferably, a side plate is fixedly connected to the end face of the movable cannula close to the cover. Vent holes are formed on the outer surface of the movable cannula. Side frames are symmetrically and fixedly connected to the outer surface of the side plate close to the connection seat. A clamping block is fixedly connected to the outer surface of the side frame. The clamping block is matched with the clamping groove in position.

[0011] By adopting the above technical solution, as the clamping block continues to displace, it will displace to a position close to the clamping groove. Using the resilience of the first spring, the clamping block can be stuck inside the clamping groove, completing the fixation of the position of the side plate. At this time, that is, with a single stroke of the piston, the movable cannula can be pushed into the rectum in place. And through the cooperation setting of the clamping block and the limiting block, the position of the movable cannula is fixed, completing the rectal propulsion operation of the device. Through the setting that the clamping block and the limiting block automatically engage during the propulsion process, the position of the movable cannula can be fixed more conveniently, further improving the convenience of using the device.

[0012] Preferably, a plurality of connecting plates are evenly and fixedly connected to the outer surface of the fixing ring. Second springs are fixedly connected to the outer surface of the connecting plates. A pressing ring is fixedly connected between the end faces of the plurality of second springs.

[0013] By adopting the above technical solution, after the pressing ring moves down to complete the reset and release of the suction cup, the resilience of the second spring can drive the pressing ring to automatically return to the initial state.

[0014] Preferably, multiple groups of extension rods are evenly and fixedly connected to the outer surface of the pressing ring. A support is fixedly connected between the end faces of the multiple groups of extension rods. A roller is rotatably connected to the inner surface of the support.

[0015] By adopting the above technical solution, when the roller contacts the inclined block and is oppressed and displaced, due to the rotatable setting of the roller, it can play a role in reducing friction, thereby achieving the purpose of reducing the wear of the device during use.

[0016] Preferably, a movable seat is inserted into the inner surface of the box body, a connecting rod is fixedly connected to the outer surface of the movable seat, a ball seat is fixedly connected to the end surface of the connecting rod, a ball head is movably connected to the inner surface of the ball seat, and a suction cup is fixedly connected to the outer surface of the ball head.

[0017] By adopting the above technical solution, the suction cup is in a free rotation state through the matching arrangement of the ball seat and the ball head. Therefore, when the suction cup presses the patient's buttocks skin, the suction cup can adaptively adjust its position to keep in contact with the skin.

[0018] Preferably, the inner surface of the movable seat is fixedly connected with a first tooth plate, the inner surface of the box body is symmetrically fixedly connected with a third spring, a second tooth plate is fixedly connected between the two end surfaces of the third spring, the second tooth plate is in contact with the tooth surface of the first tooth plate, the tooth surfaces of the second tooth plate and the first tooth plate are both helical teeth, the outer surface of the second tooth plate close to the third spring is symmetrically fixedly connected with a sliding rod, the sliding rod slides through the box body and extends to the outside, a fixing plate is fixedly connected between the two end surfaces of the sliding rods, the fixing plate is located above the fixed seat, and an inclined block is fixedly connected to the outer surface of the fixing plate, and the inclined block matches the position of the roller.

[0019] By adopting the above technical scheme, when the pressure ring is displaced, it will pull the second spring to stretch it, and at the same time, the pressure ring can drive the roller to displace through the connection between the extension rod and the support. When the roller is displaced, the roller will contact the surface of the inclined block for pressure. At this time, the inclined block will be driven to displace toward the side of the fixed sleeve, so at this time the first tooth plate will be in a disengaged state with the second tooth plate, and the movable seat can be pulled outward and reset to the initial state. The coordinated use of the slide groove and the slider limits the displacement of the movable seat to prevent the movable seat from being separated from the box body. The setting of resetting multiple suction cups at the same time by driving multiple rollers to displace the pressure ring makes the resetting operation of the suction cup more convenient and quick, thereby improving the convenience of device operation.

[0020] Preferably, a magnetic attraction plate is fixedly connected to the outer surface of the piston, and the magnetic attraction plate is located on the outer surface of one side close to the side plate, and the magnetic attraction plate and the adjacent surface of the side plate are in an attractive state.

[0021] By adopting the above technical solution, the piston can drive the magnetic plate to follow the displacement and maintain a magnetic state with the side plate. By setting the magnetic attraction of the side plate, the position state of the side plate is relatively stable when the piston pushes the side plate.

[0022] Preferably, a rubber sleeve is fixedly connected to the end face of the fixed sleeve, the rubber sleeve is located at the end face close to one side of the round head, and the cross-section of the rubber sleeve is larger than the cross-section of the movable inserting tube.

[0023] By adopting the above technical solution, since the entire device is close to the patient's anus and fits tightly, the rubber sleeve will move to a position that fits the anus. In the subsequent inflation operation, the setting of the rubber sleeve can play a role in sealing the anus.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when a patient undergoes a colon CT angiography, after the round head is aligned with the patient's anus and multiple suction cups have completed the adhesion of the buttocks skin, the device as a whole is in a relatively balanced state and fixed at the patient's anus. When performing colon inflation, medical personnel only need to take the device and adsorb it on the patient's buttocks skin, and then push and pull the handle in sequence. As the handle drives the displacement of the piston, the rectal advancement of the movable cannula and the exhaust of the round head can be completed, making the colon inflation operation more convenient and quick.

[0025] 2. In the present invention, when resetting the adsorption position of the suction cup, the medical staff pulls the pressure ring toward the suction cup, and the roller will contact the surface of the inclined block for compression. At this time, the inclined block will be driven to move toward one side of the fixed sleeve, so the first tooth plate will be disengaged from the second tooth plate at this time, and the movable seat can be pulled outward and reset to the initial state. The coordinated use of the slide groove and the slider limits the displacement of the movable seat to prevent the movable seat from being separated from the box body. The setting of resetting multiple suction cups at the same time by moving the pressure ring to drive the displacement of multiple rollers makes the resetting operation of the suction cup more convenient and quick, thereby improving the convenience of device operation.

[0026] 3. In the present invention, after holding the handle and pushing, the insertion rod can drive the piston to move toward the patient's anus. At this time, the piston moves to the side plate position, and the piston can drive the magnetic plate to follow the displacement and maintain a magnetic state with the side plate. By setting the magnetic attraction of the side plate, the position of the side plate is relatively stable when the piston pushes the side plate position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of an inflation device for colon CT angiography of the present invention; Figure 2 It is a side view of an inflation device for colon CT angiography examination according to the present invention; Figure 3 This is an exploded view of an inflation device for colon CT angiography of the present invention; Figure 4 This is a schematic structural diagram of a housing component of an inflation device for colon CT angiography of the present invention; Figure 5 It is a schematic diagram of another viewing angle of a housing component of an inflation device for colon CT angiography examination according to the present invention; Figure 6 Schematic diagram of the limit block structure of an inflation device for colon CT angiography according to the present invention; Figure 7 Schematic diagram of the combined structure of a part of an inflation device for colon CT angiography according to the present invention; Figure 8 is Figure 7 Enlarged view of the structure at position A in Figure 9 Schematic diagram of the combined structure of another part of an inflation device for colon CT angiography according to the present invention; Figure 10 Schematic diagram of the release component structure of an inflation device for colon CT angiography according to the present invention; Figure 11 Schematic diagram of the fixing component structure of an inflation device for colon CT angiography according to the present invention; Figure 12 Schematic diagram of the second tooth plate structure of an inflation device for colon CT angiography according to the present invention.

[0028] In the figure: 1. Outer shell assembly; 101. Housing; 102. Anti-slip sleeve; 103. Cover; 104. First one-way valve; 105. Plug rod; 106. Grip; 107. Piston; 108. Second one-way valve; 109. Connection seat; 110. Moving rod; 111. Pressing plate; 112. First spring; 113. Limit block; 114. Card slot; 115. Magnetic attraction plate; 2. Fixed sleeve; 3. Movable insertion tube; 4. Round head; 5. Release component; 501. Fixed ring; 502. Connecting plate; 503. Second spring; 504. Pressing ring; 505. Extension rod; 506. Support; 507. Roller; 6. Fixed component; 601. Fixed seat; 602. Box body; 603. Movable seat; 604. First tooth plate; 605. Connecting rod; 606. Ball seat; 607. Ball head; 608. Suction cup; 609. Third spring; 610. Second tooth plate; 611. Slide rod; 612. Fixed plate; 613. Inclined block; 7. Side plate; 8. Side frame; 9. Block; 10. Ventilation hole; 11. Rubber sleeve. Detailed implementation method

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figures 1-12As shown in the figure, the present invention provides a technical solution: an inflation device for colon CT angiography, including a housing assembly 1, a fixed sleeve 2, a release assembly 5 and a fixing assembly 6. The housing assembly 1 includes a housing 101, and a cover 103 is fixedly connected to the end face of the housing 101. A plug rod 105 is slidably connected through the outer surface of the cover 103. A grip 106 is fixedly connected to the end face of the plug rod 105. A piston 107 is fixedly connected to the other end face of the plug rod 105. The piston 107 is located inside the housing 101, and the outer surface of the piston 107 fits with the inner surface of the housing 101. The fixed sleeve 2 is fixedly connected to the other end face of the housing 101. The fixed sleeve 2 is in communication with the housing 101. A movable insertion tube 3 is inserted into the inner surface of the fixed sleeve 2, and a round head 4 is fixedly connected to the end face of the movable insertion tube 3. The release assembly 5 is fixedly connected to the outer surface of the fixed sleeve 2. The release assembly 5 includes a fixed ring 501;The number of the fixing components 6 is set to be multiple, and the multiple fixing components 6 are evenly and fixedly connected to the outer surface of the fixing sleeve 2. The fixing component 6 includes a fixing base 601, a box body 602 is fixedly connected to the outer surface of the fixing base 601, an anti-slip sleeve 102 is fixedly connected to the outer surface of the housing 101, a first one-way valve 104 is fixedly connected to the outer surface of the cover 103, a second one-way valve 108 is fixedly connected to the outer surface of the piston 107 away from the cover 103, and the first one-way valve 104 and the second one-way valve 108 are arranged in a matching manner. A connecting seat 109 is symmetrically and fixedly connected to the inner bottom of the housing 101, a first spring 112 is symmetrically and fixedly connected to the inner bottom of the connecting seat 109, a limiting block 113 is fixedly connected between the end faces of the two first springs 112, a clamping groove 114 is formed on the outer surface of the limiting block 113, a moving rod 110 is fixedly connected to the outer surface of the limiting block 113, the moving rod 110 sequentially slides through the connecting seat 109 and the housing 101 and extends to the outside, a pressing plate 111 is fixedly connected between the end faces of the two moving rods 110, an arc surface is arranged on the outer surface of the limiting block 113 close to the cover 103, a side plate 7 is fixedly connected to the end face of the movable insertion tube 3 close to the cover 103, air holes 10 are formed on the outer surface of the movable insertion tube 3, side frames 8 are symmetrically and fixedly connected to the outer surface of the side plate 7 close to the connecting seat 109, a clamping block 9 is fixedly connected to the outer surface of the side frame 8, and the clamping block 9 is matched with the position of the clamping groove 114. A movable seat 603 is inserted into the inner surface of the box body 602, a connecting rod 605 is fixedly connected to the outer surface of the movable seat 603, a ball seat 606 is fixedly connected to the end face of the connecting rod 605, a ball head 607 is movably connected to the inner surface of the ball seat 606, a suction cup 608 is fixedly connected to the outer surface of the ball head 607, a first toothed plate 604 is fixedly connected to the inner surface of the movable seat 603, third springs 609 are symmetrically and fixedly connected to the inner surface of the box body 602, a second toothed plate 610 is fixedly connected between the end faces of the two third springs 609, the tooth surfaces of the second toothed plate 610 and the first toothed plate 604 are in contact with each other, the tooth surfaces of the second toothed plate 610 and the first toothed plate 604 are both helical teeth, sliding rods 611 are symmetrically and fixedly connected to the outer surface of the second toothed plate 610 close to the third spring 609, the sliding rods 611 penetrate through the box body 602 and extend to the outside, a fixing plate 612 is fixedly connected between the end faces of the two sliding rods 611, the fixing plate 612 is located above the fixing base 601, an inclined block 613 is fixedly connected to the outer surface of the fixing plate 612, and the inclined block 613 is matched with the position of the roller 507. A magnetic attraction plate 115 is fixedly connected to the outer surface of the piston 107, the magnetic attraction plate 115 is located on the outer surface close to the side plate 7, and the adjacent surfaces of the magnetic attraction plate 115 and the side plate 7 are in a state of mutual attraction. A rubber sleeve 11 is fixedly connected to the end face of the fixing sleeve 2, the rubber sleeve 11 is located on the end face close to the round head 4, and the cross section of the rubber sleeve 11 is larger than the cross section of the movable insertion tube 3.;

[0031] The use steps of the present invention are as follows: when a patient undergoes a colon CT angiography examination, the round head 4 is aligned with the patient's anus, and multiple suction cups 608 are moved to fit the patient's buttocks skin. At this time, the suction cups 608 are in contact with the patient's buttocks skin, and the suction cups 608 are compressed. At this time, the suction cups 608 are in a free rotation state through the coordination of the ball seat 606 and the ball head 607. Therefore, when the suction cups 608 compress the patient's buttocks skin, the suction cups 608 can adaptively adjust their positions to keep fitting the skin. As the medical staff takes the device to compress the patient's buttocks, the suction cups 608 and the skin are in a fit and adsorbed state. When the suction cups 608 are compressed, At the same time, the resilience of the third spring 609 is used to keep the first tooth plate 604 and the second tooth plate 610 in contact with each other. Therefore, the first tooth plate 604 cannot be pulled out of the box body 602 at this time. After the round head 4 is aligned with the patient's anus and the multiple suction cups 608 have completed the contact with the buttocks skin, the device as a whole is in a relatively balanced state and fixed at the patient's anus. At this time, the medical staff begins further inflation operation. After holding the shell 101 with one hand, the medical staff holds the handle 106 with the other hand to operate the insertion rod 105 to perform inflation operation. After holding the handle 106 and pushing it, the insertion rod 105 can drive the piston 107 to the patient's anus. The position is displaced, and with the displacement of the piston 107, the side plate 7 can be driven to follow the displacement. Through the displacement of the side plate 7, the movable cannula 3 and the round head 4 can be driven to move toward the patient's anus. At this time, the round head 4 contacts and inserts the patient's anus. The setting of the round head 4 can reduce the contact discomfort. With the continuous advancement of the piston 107, the round head 4 and the movable cannula 3 will be inserted into the rectum from the patient's anus. At this time, the side plate 7 drives the side frame 8 and the block 9 to move to a position close to the connecting seat 109. The block 9 will contact the arc surface position of the limit block 113 at this time. The block 9 will cause compression to the limit block 113, and the limit block 113 will be compressed. After being pressed, the first spring 112 will be suppressed to shrink. As the displacement continues, the card block 9 will move to a position close to the card slot 114. The rebound force of the first spring 112 can make the card block 9 stuck in the card slot 114, thereby completing the position fixation of the side plate 7. At this time, with the single-stroke advancement of the piston 107, the movable cannula 3 can be pushed into the rectum and into place. The position of the movable cannula 3 is fixed by the coordinated arrangement of the card block 9 and the limit block 113, thereby completing the rectal advancement operation of the device. The round head 4 can be at the end position of the rectum, facing the patient's colon position, and air is discharged from the end face opening position of the round head 4 to complete the colon inflation operation of the patient.

[0032] Embodiment 2: Figure 7 , Figure 9 and Figure 10As shown, a plurality of connecting plates 502 are evenly and fixedly connected to the outer surface of the fixing ring 501, a second spring 503 is fixedly connected to the outer surface of the connecting plate 502, a pressure ring 504 is fixedly connected between the end surfaces of the plurality of second springs 503, a plurality of groups of extension rods 505 are evenly and fixedly connected to the outer surface of the pressure ring 504, a support 506 is fixedly connected between the end surfaces of the plurality of groups of extension rods 505, and a roller 507 is rotatably connected to the inner surface of the support 506.

[0033] The use steps of the present invention are as follows: when resetting the suction position of the suction cup 608, the medical staff pulls the pressure ring 504 toward the suction cup 608. At this time, when the pressure ring 504 is displaced, it pulls the second spring 503 to stretch. At the same time, the pressure ring 504 can drive the roller 507 to displace through the connection between the extension rod 505 and the support 506. When the roller 507 is displaced, the roller 507 contacts the surface of the inclined block 613 for compression. At this time, the inclined block 613 is driven to displace toward one side of the fixed sleeve 2. Therefore, at this time, the first tooth plate 604 will be in a disengaged state with the second tooth plate 610, and the movable seat 603 can be pulled outward and reset to the initial state. The coordinated use of the slide groove and the slider limits the displacement of the movable seat 603, preventing the movable seat 603 from being separated from the box body 602. By turning the pressure ring 504 to drive the displacement of multiple rollers 507 so that multiple suction cups 608 are reset at the same time, the reset operation of the suction cup 608 is more convenient and quick, thereby improving the convenience of device operation.

[0034] Embodiment 3: Figure 3 , Figure 5 and Figure 8 As shown, a magnetic attraction plate 115 is fixedly connected to the outer surface of the piston 107. The magnetic attraction plate 115 is located on the outer surface of the side close to the side plate 7. The magnetic attraction plate 115 and the adjacent surface of the side plate 7 are in an attractive state.

[0035] The steps of using the present invention are as follows: after holding the handle 106 and pushing it, the insertion rod 105 can drive the piston 107 to move toward the patient's anus. At this time, the piston 107 moves to the position of the side plate 7, and the piston 107 can drive the magnetic plate 115 to follow the displacement and maintain a magnetic state with the side plate 7. By setting the magnetic attraction of the side plate 7, the position state of the side plate 7 is relatively stable when the piston 107 pushes the position of the side plate 7.

[0036] The effect and working principle of the whole mechanism are as follows: when the patient undergoes colon CT angiography, the medical staff uses the inflation device of colon CT angiography to inflate the patient's colon. Figure 2As shown, multiple suction cups 608 are located outside the round head 4, and the movable cannula 3 is in a state of being received inside the fixed cannula 2. At this time, the side plate 7 is close to the piston 107. When starting the colon inflation operation, the round head 4 is aligned with the patient's anus position, and the multiple suction cups 608 are displaced to the position where they fit the patient's buttock skin. At this time, the suction cups 608 are in contact with the patient's buttock skin, and the suction cups 608 are pressed. At this time, through the cooperation of the ball seat 606 and the ball head 607, the suction cups 608 are in a freely rotatable state. Therefore, when the suction cups 608 press the patient's buttock skin at this time, the suction cups 608 can adaptively adjust their positions to maintain the state of fitting the skin. As the medical staff presses the device against the patient's buttocks, the suction cups 608 and the skin are in a state of fitting and adsorption. While the suction cups 608 are being pressed, the movable seat 603 will be pressed through the connection of the connecting rod 605. At this time, the movable seat 603 will be pressed and displaced into the box body 602. At this time, through the cooperation of the first toothed plate 604 and the second toothed plate 610, the inclined tooth surfaces of the first toothed plate 604 and the second toothed plate 610 are in a fitting state. Therefore, when the first toothed plate 604 moves towards the inside of the box body 602, the first toothed plate 604 will cause the second toothed plate 610 to displace. When the second toothed plate 610 is pushed and displaced, it will compress the third spring 609. Using the resilience of the third spring 609, the first toothed plate 604 and the second toothed plate 610 are always kept in a fitting state. Therefore, at this time, the first toothed plate 604 cannot be pulled out of the box body 602. When the round head 4 is aligned with the patient's anus position and multiple suction cups 608 have all completed the fitting of the buttock skin, the whole device is in a relatively balanced state and is fixed at the patient's anus position. At this time, the medical staff starts the further inflation operation. During the operation, the hand holds the position of the anti-slip sleeve 102 to keep the position of the housing 101 stable and balanced. At the same time, since the whole device is close to and adjacent to the patient's anus position, the rubber sleeve 11 will be displaced to the position where it fits the anus. In the subsequent inflation operation, the rubber sleeve 11 can play a role in closing the anus position. Since multiple suction cups 608 have completed the adsorption and fixation at the position of the patient's skin, the overall position of the device is relatively stable. After one hand of the medical staff holds the position of the housing 101, the other hand holds the grip 106 and operates the position of the insertion rod 105 for the inflation operation. After holding the grip 106 and pushing, the insertion rod 105 can drive the piston 107 to displace towards the patient's anus position. At this time, the piston 107 displaces to the position of the side plate 7, and the piston 107 can drive the magnetic attraction plate 115 to follow the displacement and maintain the magnetic attraction state with the side plate 7. Through the magnetic attraction setting of the side plate 7, when the piston 107 pushes the side plate 7, the position state of the side plate 7 is relatively stable. Therefore, as the piston 107 displaces, it can drive the side plate 7 to follow the displacement. Through the displacement of the side plate 7, it can drive the movable cannula 3 and the round head 4 to move towards the patient's anus position. At this time, the round head 4 contacts and inserts into the patient's anus position. Through the setting of the round head 4, it can play a role in reducing the discomfort of contact.With the continuous advancement of the piston 107, the round head 4 and the movable cannula 3 will be inserted into the rectum from the patient's anal position. At this time, the side plate 7 drives the side frame 8 and the clamping block 9 to displace to a position close to the connecting seat 109. At this time, the clamping block 9 will contact the arc surface position of the limiting block 113, and the clamping block 9 will exert pressure on the limiting block 113 at this time. After being pressed, the limiting block 113 will suppress the first spring 112 to contract. As it continues to displace, the clamping block 9 will displace to a position close to the card slot 114. Using the resilience of the first spring 112, the clamping block 9 can be stuck inside the card slot 114, completing the position fixation of the side plate 7. At this time, with a single-stroke advancement of the piston 107, the movable cannula 3 can be pushed into the rectum in place. And through the cooperative setting of the clamping block 9 and the limiting block 113, the position of the movable cannula 3 is fixed, completing the rectal propulsion operation of the device. The round head 4 can be at the end position of the rectum, facing the patient's colon position. By discharging air from the end face opening position of the round head 4, the colon inflation operation on the patient can be completed. While the piston 107 drives the movable cannula 3 to advance into the rectum, through the cooperative use of the first one-way valve 104 and the second one-way valve 108, when the piston 107 is pushed into the housing 101, the first one-way valve 104 will be in a connected state, that is, air will enter the interior of the housing 101 from the position of the cover 103. At the same time, the second one-way valve 108 will be in a closed state. After the piston 107 is advanced in place and then pulled outwards, when the piston 107 is pulled outwards, the first one-way valve 104 will be in a closed state, that is, the cover 103 position cannot exhaust air. At this time, the second one-way valve 108 will be in a connected state. So at this time, the air inside the housing 101 will be discharged to the other side space of the housing 101 through the second one-way valve 108. At this time, through the setting of the ventilation hole 10, the air discharged into the housing 101 will enter the interior of the movable cannula 3 from the ventilation hole 10 position. The air will flow out through the connection of the movable cannula 3 at this time, that is, it will be discharged from the opening position of the round head 4 into the patient's colon, completing the colon inflation operation on the patient. If the single push stroke of the piston 107 does not reach the inflation volume, at this time, due to the side plate 7 being fixed in place, the piston 107 can freely continue to push and pull strokes in sequence, that is, inflate again from the round head 4 position. When performing the colon inflation operation, the medical staff only need to pick up the device and adsorb it on the patient's buttock skin position, and then push and pull the grip 106 in sequence. As the grip 106 drives the displacement of the piston 107, the rectal propulsion of the movable cannula 3 and the air discharge at the round head 4 position can be completed, making the colon inflation operation more convenient and fast. After inflation is completed, slightly lift the suction cup 608 away from the skin attachment position of the patient to disengage the adsorption state. At this time, pull out the device, that is, pull out the movable cannula 3 from the patient's rectal position, completing the overall removal of the device. Next, reset the device. Press down the pressing plate 111. The pressing plate 111 can drive the limiting block 113 to displace through the connection of the moving rod 110. At this time, the limiting block 113 is pressed, causing the clamping block 9 to disengage from the card slot 114.At this time, the block 9 is out of the limit state, and the movable cannula 3 can be reset to the initial position. Next, the adsorption position of the suction cup 608 is reset, and the medical staff pulls the pressure ring 504 toward the suction cup 608. At this time, the pressure ring 504 can pull the second spring 503 to stretch when it is displaced. At the same time, the pressure ring 504 can drive the roller 507 to displace through the connection between the extension rod 505 and the support 506. When the roller 507 is displaced, the roller 507 will contact the surface of the inclined block 613 for compression. At this time, the inclined block 613 will be driven to move toward one side of the fixed sleeve 2, so at this time, the first tooth plate 604 will be in a disengaged state with the second tooth plate 610, and the movable seat 603 can be pulled outward and reset to the initial state. Figure 11 and Figure 12 As shown, corresponding grooves and sliders are provided on the outer wall of the movable seat 603 and the inner wall of the box body 602. The coordinated use of the grooves and sliders limits the displacement of the movable seat 603, thereby preventing the movable seat 603 from being separated from the box body 602. The setting of simultaneously resetting multiple suction cups 608 by driving the pressure ring 504 to move multiple rollers 507 makes the resetting operation of the suction cups 608 more convenient and quick, thereby improving the convenience of device operation.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An inflating device for colon CT angiography, comprising a housing assembly (1), a fixed sleeve (2), a release assembly (5) and a fixing assembly (6), characterized in that: The housing assembly (1) includes a housing (101), a cover (103) is fixedly connected to the end face of the housing (101), the cover (103), a plug rod (105) is slidably connected through the outer surface of the cover (103), a grip (106) is fixedly connected to the end face of the plug rod (105), a piston (107) is fixedly connected to the other end face of the plug rod (105), the piston (107) is located inside the housing (101), and the outer surface of the piston (107) fits with the inner surface of the housing (101); The fixed sleeve (2) is fixedly connected to the other end face of the housing (101), the fixed sleeve (2) is in communication with the housing (101), a movable insertion tube (3) is inserted into the inner surface of the fixed sleeve (2), and a round head (4) is fixedly connected to the end face of the movable insertion tube (3); The release assembly (5) is fixedly connected to the outer surface of the fixed sleeve (2), and the release assembly (5) includes a fixing ring (501); The number of the fixing assemblies (6) is set to be multiple, and the multiple fixing assemblies (6) are evenly fixedly connected to the outer surface of the fixed sleeve (2). The fixing assembly (6) includes a fixing seat (601), and a box body (602) is fixedly connected to the outer surface of the fixing seat (601).

2. The inflation device for colon CT angiography according to claim 1, characterized in that: An anti-slip sleeve (102) is fixedly connected to the outer surface of the housing (101), a first one-way valve (104) is fixedly connected to the outer surface of the cover (103), a second one-way valve (108) is fixedly connected to the outer surface of the piston (107) on the side away from the cover (103), and the first one-way valve (104) and the second one-way valve (108) are provided in a matching manner.

3. The inflation device for colon CT imaging examination according to claim 1, characterized in that: Connecting seats (109) are symmetrically and fixedly connected to the inner bottom of the housing (101), first springs (112) are symmetrically and fixedly connected to the inner bottom of the connecting seats (109), a limiting block (113) is fixedly connected between the end faces of the two first springs (112), a card slot (114) is formed on the outer surface of the limiting block (113), a moving rod (110) is fixedly connected to the outer surface of the limiting block (113), the moving rod (110) sequentially slides through the connecting seat (109) and the housing (101) and extends to the outside, a pressing plate (111) is fixedly connected between the end faces of the two moving rods (110), and an arc surface is arranged on the outer surface of the limiting block (113) close to the cover (103).

4. The insufflation device for colon CT imaging according to claim 3, wherein: A side plate (7) is fixedly connected to the end face of the movable insertion tube (3) close to the cover (103), air holes (10) are formed on the outer surface of the movable insertion tube (3), side frames (8) are symmetrically and fixedly connected to the outer surface of the side plate (7) close to the connecting seat (109), a clamping block (9) is fixedly connected to the outer surface of the side frame (8), and the clamping block (9) is matched with the card slot (114) in position.

5. The inflation device for colon CT imaging examination according to claim 1, characterized in that: A plurality of connecting plates (502) are fixedly connected to the outer surface of the fixed ring (501) evenly. A second spring (503) is fixedly connected to the outer surface of the connecting plate (502). A pressure ring (504) is fixedly connected between the end faces of the plurality of second springs (503).

6. The inflating device for colon CT imaging examination according to claim 5, characterized in that: A plurality of groups of extension rods (505) are fixedly connected to the outer surface of the pressure ring (504) evenly. A support (506) is fixedly connected between the end faces of the plurality of groups of extension rods (505). A roller (507) is rotatably connected to the inner surface of the support (506).

7. The inflation device for colon CT imaging according to claim 6, wherein: A movable seat (603) is inserted into the inner surface of the box body (602). A connecting rod (605) is fixedly connected to the outer surface of the movable seat (603). A ball seat (606) is fixedly connected to the end face of the connecting rod (605). A ball head (607) is movably connected to the inner surface of the ball seat (606). A suction cup (608) is fixedly connected to the outer surface of the ball head (607).

8. The inflation device for colon CT imaging according to claim 7, wherein: A first toothed plate (604) is fixedly connected to the inner surface of the movable seat (603). Third springs (609) are symmetrically fixedly connected to the inner surface of the box body (602). A second toothed plate (610) is fixedly connected between the end faces of the two third springs (609). The tooth surfaces of the second toothed plate (610) and the first toothed plate (604) are in contact with each other. The tooth surfaces of both the second toothed plate (610) and the first toothed plate (604) are helical teeth. Slide rods (611) are symmetrically fixedly connected to the outer surface of the second toothed plate (610) on the side close to the third spring (609). The slide rods (611) penetrate through the box body (602) and extend to the outside. A fixing plate (612) is fixedly connected between the end faces of the two slide rods (611). The fixing plate (612) is located above the fixed seat (601). An inclined block (613) is fixedly connected to the outer surface of the fixing plate (612). The inclined block (613) is matched with the position of the roller (507).

9. The inflation device for colon CT angiography according to claim 4, characterized in that: A magnetic attraction plate (115) is fixedly connected to the outer surface of the piston (107). The magnetic attraction plate (115) is located on the outer surface close to the side plate (7). The adjacent surfaces of the magnetic attraction plate (115) and the side plate (7) are in an attracted state.

10. The insufflation device for colon CT imaging according to claim 1, wherein: A rubber sleeve (11) is fixedly connected to the end face of the fixed sleeve (2). The rubber sleeve (11) is located on the end face close to the round head (4). The cross section of the rubber sleeve (11) is larger than the cross section of the movable insertion tube (3).

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