Lower esophageal blind end growth promoting device

Abstract

The present application relates to the technical field of medical devices, and discloses an esophagus lower blind end growth promoting device, which comprises a probe, a stoma seat, a fixing seat, a ball hinge mechanism and a pushing mechanism, the stoma seat is connected to a stoma of a patient, the fixing seat is internally provided with a cavity structure, the size of the front end of the cavity structure is larger than that of the stoma seat, the ball hinge mechanism is arranged in the cavity structure, the pushing mechanism is arranged at the back of the cavity structure, the probe is connected to the pushing mechanism, the front end of the probe passes through the ball hinge mechanism and extends out of the stoma seat, a bandage is arranged on the fixing seat, and a belly piece is arranged at the front of the fixing seat. The present application can accelerate the growth of the esophagus of a patient in a relatively shorter time, so that the patient can be operated as early as possible and life can be saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a multi-dimensional adjustable lower esophageal blind end growth device. BACKGROUND

[0002] Atresia of oesophagus and tracheoesophageal fistula are not uncommon in the neonatal period, according to domestic statistics, the incidence is 1 case in 2000-4500 newborns, similar to the incidence abroad (1 case in 2500-3000 newborns), accounting for the third place of digestive tract malformations, second only to anorectal malformations and Hirschsprung disease, the incidence of boys is slightly higher than that of girls. In the past, most of the children with this disease died within a few days after birth, in recent years, due to the development of pediatric surgery, the success rate of surgical treatment has been improved.

[0003] In the case of esophageal atresia, the upper and lower segments of the esophagus are not connected and each forms a blind end. For such cases, the upper and lower segments are usually lengthened and sutured for treatment, but in such cases, the distance between the upper and lower segments is too long to be directly pulled together for surgery, such as type I esophageal atresia, type II esophageal atresia, and type III (A) esophageal atresia. In this case, small intestine, colon transplantation or gastric lifting to the thoracic cavity can be used to reconstruct the connection between the esophagus and the stomach, but the operation is complex, traumatic, and has many complications. Another method is to wait for the esophageal blind end to grow to an appropriate length and perform esophageal anastomosis, but the esophageal blind end usually needs 4-8 weeks to grow to a length that can be anastomosed, not only a long process, but also serious complications such as severe pneumonia and internal environment disorder during the growth period, which can endanger life. SUMMARY

[0004] The purpose of the present application is to solve the above problems and provide a lower esophageal blind end growth device to accelerate esophageal growth in a relatively shorter period of time and perform surgery as soon as possible to save lives.

[0005] The technical solution adopted by the present application is:

[0006] A lower esophageal blind end growth device, characterized in that it comprises a probe, a stoma seat, a fixed seat, a ball hinge mechanism, and a pushing mechanism, the stoma seat is connected to the patient's stoma, the fixed seat is a hollow structure, the size of the front end of the hollow structure is larger than that of the stoma seat, the ball hinge mechanism is arranged in the hollow structure, the pushing mechanism is arranged at the rear of the hollow structure, the probe is connected to the pushing mechanism, the front end of the probe extends out of the stoma seat through the ball hinge mechanism, a belt is arranged on the fixed seat, and a belly piece is arranged in front of the fixed seat.

[0007] Further, the ball hinge structure comprises a ball head, left and right adjusting knobs and a horizontal adjusting knob, the ball head has a through hole in the middle, the left and right adjusting knobs and the horizontal adjusting knob comprise a square handle seat of a steering screw, the left and right adjusting knobs and the horizontal adjusting knob are arranged at 90 degrees, one end of the steering screw is connected with the ball head, the other end passes through a ball seat on the fixed seat and is threadedly connected with the ball seat, and the end is connected with the square handle seat, a clutch knob is arranged between the square handle seat and the ball seat.

[0008] Further, the clutch knob and the square handle seat are gap-fitted, a clutch spring is arranged between the clutch knob and the square handle seat, and a rotation stopping part is arranged on the fitting surface of the clutch knob and the ball seat.

[0009] Further, the push mechanism comprises a driving nut and a screw rod, the front end of the driving nut is fitted at the opening of the upper end cavity structure of the fixed seat through a self-locking ring, so that the driving nut has the rotation freedom and the axial movement is limited, the screw rod is fitted in the driving nut, the lower end of the screw rod is provided with a ball groove, the upper end universal ball of the probe is installed in the ball groove, and the screw rod is limited in rotation through the clamping structure arranged in the fixed seat.

[0010] Further, the self-locking ring is provided with a lock tooth and a lock tooth, the upper end of the fixed seat is provided with a clamping groove, the lock tooth and the clamping groove are fitted to realize fixation, and the driving nut is provided with an unlocking key which is fitted with the lock tooth.

[0011] Further, the push mechanism comprises a driving nut and a screw rod, the front end of the driving nut is fitted at the opening of the upper end cavity structure of the fixed seat through a self-locking ring, so that the driving nut has the rotation freedom and the axial movement is limited, the screw rod is fitted in the driving nut, the lower end of the screw rod is provided with a ball groove, the upper end universal ball of the probe is installed in the ball groove, and the screw rod is limited in rotation through the clamping structure arranged in the fixed seat.

[0012] Further, the pressure spring is two in series, and a moving piece is arranged in the middle, the moving piece is connected to the elastic force indicating needle above the spring seat.

[0013] Further, the push mechanism comprises a driving nut, a screw rod and a flexible pressure device, the front end of the driving nut is fitted at the opening of the rear end cavity structure of the fixed seat through a self-locking ring, so that the driving nut has the rotation freedom and the axial movement is limited, the screw rod is fitted in the driving nut, the screw rod is a hollow structure, the flexible pressure device is arranged in the hollow structure of the screw rod, the flexible pressure device is provided with an air bag, a gas conveying pipe and a balloon, the probe is a hollow elbow pipe, the gas conveying pipe passes through the hollow elbow pipe, and the balloon is located at the lower end of the hollow elbow pipe.

[0014] Further, the fixing base comprises a convex base and an outer circular surface, the convex base is provided with an elongated opening above, and the outer circular surface is fixed at a position in the length direction of the elongated opening by a fastener.

[0015] Further, the fixing base comprises a convex base, and the convex base is connected with the belly piece by screwing.

[0016] Further, the belly piece and the convex base are respectively provided with a positioning block and a positioning groove, and the convex base is positioned by the positioning block and the positioning groove when the convex base is fixed on the belly piece by screwing, and a rubber ring is further arranged between the convex base and the belly piece.

[0017] Further, a scale is arranged on the fixing base in the axial direction, and a scale is arranged on the pushing mechanism, and the scale and the scale are matched to measure the moving amount of the pushing mechanism.

[0018] Further, a feeding mechanism is further arranged on the fixing base, and the feeding mechanism comprises a feeding tube, the upper end of the feeding tube extends out through the side of the fixing base, and the lower end extends below the belly piece of the fixing base.

[0019] Further, an elastic rubber pad is arranged on the belly piece of the fixing base, and a vacuum chuck is further arranged on the elastic rubber pad, and the feeding tube passes through the vacuum chuck.

[0020] Further, the upper section of the probe is an empty tube, the empty tube is communicated to the outlet hole in the middle section of the probe, the upper end of the empty tube is communicated to the pushing mechanism, and a feeding port is arranged at the outlet position of the pushing mechanism.

[0021] Further, a feeding tube is arranged in the empty tube, the lower end of the feeding tube passes out of the outlet hole in the middle section of the probe, and the upper end of the feeding tube passes through the pushing mechanism and extends out of the outlet position of the pushing mechanism.

[0022] Further, an annular adhesive is arranged on the surface of the belly piece, and the annular adhesive is located at the outer edge of the lower end of the cavity structure.

[0023] (1) The probe is controlled by the pushing mechanism, and is deeply inserted into the esophagus of the human body through the stoma in the stomach, so as to stimulate and push the lower blind end of the esophagus, and promote the growth of the lower blind end of the esophagus;

[0024] (2) The daily pushing amount is displayed by the scale on the fixing base, so as to promote the uniform and stable growth of the esophagus, simplify the esophageal atresia operation mode, achieve the expected extension target, reduce the surgical trauma and surgical risk, improve the effect of esophageal atresia operation treatment, and better save lives;

[0025] (3) The growth speed and growth direction are controllable. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a partial sectional structure schematic view of the first embodiment of the present application.

[0027] Figure 2 Figure 1 is a schematic diagram of the exploded structure of the present application; Figure 1

[0028] Figure 3 Figure 2 is a schematic diagram of the structure of the probe in the first embodiment of the present application;

[0029] Figure 4 Figure 3 is a partial sectional view of the fixed seat in the first embodiment of the present application;

[0030] Figure 5 Figure 4 is a use effect diagram of the annular paste in the first embodiment of the present application;

[0031] Figure 6 Figure 5 is a schematic diagram of the structure of the ball hinge mechanism in the first embodiment of the present application;

[0032] Figure 7 Figure 6 is a schematic diagram of the structure of another embodiment of the clutch torsion in the first embodiment of the present application;

[0033] Figure 8 Figure 7 is a schematic diagram of the structure of another embodiment of the fixed seat in the first embodiment of the present application;

[0034] Figure 9 Figure 8 is a schematic diagram of the structure of the self-locking ring in the first embodiment of the present application;

[0035] Figure 10 Figure 9 is a schematic diagram of the structure of the pushing mechanism in the first embodiment of the present application;

[0036] Figure 11 Figure 10 is an assembly diagram of the self-locking ring and the pushing mechanism in the first embodiment of the present application

[0037] Figure 12 Figure 11 is a connection diagram of the unlocking key and the drive nut in the first embodiment of the present application

[0038] Figure 13 Figure 12 is an exploded structural schematic diagram of another embodiment of the fixed seat in the first embodiment of the present application;

[0039] Figure 14 Figure 13 is an assembly structural schematic diagram of the fixed seat in the second embodiment of the present application

[0040] Figure 15 Figure 14 is a schematic diagram of the structure of the elastic pressure device in the third embodiment of the present application;

[0041] Figure 16 Figure 15 is an assembly structural schematic diagram of the flexible pressure device in the fourth embodiment of the present application;

[0042] Figure 17 Figure 16 is a structural schematic diagram of the flexible pressure device in the fourth embodiment of the present application; ​

[0043] Figure 18 Fig. 5 is a schematic diagram of the overall exploded structure of the feeding mechanism of the fifth embodiment of the present application;

[0044] Figure 19 Fig. 6 is a schematic diagram of the structure of another embodiment of the elastic rubber pad in the fifth embodiment of the present application;

[0045] Figure 20 Fig. 7 is a schematic diagram of the assembly structure of another embodiment of the feeding mechanism of the sixth embodiment of the present application;

[0046] Figure 21 Fig. 8 is a schematic diagram of the structure of another embodiment of the half-empty strip tube in the sixth embodiment of the present application.

[0047] The reference numerals in the drawings are as follows:

[0048] 1 is a probe, 101 is a strip post, 102 is a round strip, and 103 is a universal ball;

[0049] 2 is a fistula forming seat;

[0050] 3 is a fixed seat, 301 is a belly piece, 3011 is a hole, 3012 is an external thread, 3013 is a positioning groove, 302 is a convex seat, 3021 is an outer cylindrical surface, 30211 is a sliding plate, 30212 is a press pin, 3022 is an annular groove, 3023 is a clamping groove, 3024 is a scale, 3025 is a rotation stopping hole, 3026 is a ball seat, 3027 is a stop pin, 3028 is an oblong hole, 3029 is a leakage prevention ring, 303 is a cavity, 304 is an annular adhesive, 305 is a positioning block, 306 is a stop, 307 is a rubber ring, and 308 is a screw cap;

[0051] 4 is a ball hinge mechanism, 401 is a ball head, 4011 is a connecting seat, 402 is a left and right and front and back adjusting knob, 4021 is a square handle seat, 4022 is a clutch spring, 4023 is a clutch torsion, 40231 is a rotation stopping pin, 40232 is a stop hole, 4024 is a direction adjusting screw, and 4025 is a rotation locking spring;

[0052] 5 is a self-locking ring, 501 is a locking tooth, and 502 is a locking tooth;

[0053] 6 is a pushing mechanism, 601 is a ball groove, 602 is a screw rod, 6021 is a scale, 603 is an unlocking key, 6031 is a lock head, 604 is a driving nut, 6041 is a small boss, and 6042 is an internal thread;

[0054] 7 is a bandage;

[0055] 8 is elastic pressure device, 801 is movable pin, 8011 is flange, 8012 is moving ball slot, 802 is new screw rod, 8021 is upper limit edge, 8022 is lower limit edge 8022, 803 is spring, 804 is spring seat, 805 is transparent cover, 806 is elastic force indicating needle, 807 is moving sheet;

[0056] 9 is hollow elbow;

[0057] 10 is flexible pressure device, 1001 is balloon, 1002 is gas delivery tube, 1003 is air bag, 1004 is inflation seat, 1005 is inflation port;

[0058] 11 is feeding mechanism, 1101 is feeding tube, 1102 is compression ring, 1103 is elastic rubber pad, 11031 is vacuum chuck;

[0059] 12 is half empty strip tube, 1201 is empty tube, 1202 is meshing ball, 1203 is inlet, 1204 is O-ring. DETAILED DESCRIPTION

[0060] The specific embodiments of the esophageal lower blind end promoting device of the present application will be described in detail below with reference to the accompanying drawings.

[0061] Example 1:

[0062] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , in conjunction with Figure 2 , Figure 7 , Figure 8 , a multi-dimensional adjustable esophageal lower blind end promoting device includes a probe 1, a fistula seat 2, a fixed seat 3, a ball hinge mechanism 4, a self-locking ring 5, a pushing mechanism 6, and a binding belt 7.

[0063] As shown in Figure 3 , the probe 1 has a strip pier 101 at the top of the lower end and a universal ball 103 at the upper end, which are connected by a round strip 102; the strip pier 101 passes through the fistula seat 2 and is inserted into the stomach to press against the lower blind end of the esophagus of the child to extend the lower blind end of the esophagus; the head of the strip pier 101 is smooth, and its size is close to the inner diameter of the lower blind end of the esophagus of the child; the round strip 102 of the probe 1 itself has a certain degree of flexibility, which can not only transmit displacement and certain force, but also facilitate shaping.

[0064] As shown in Figure 4As shown, the fixed seat 3 includes a belly piece 301 and a convex seat 302, the belly piece 301 is fixedly connected below the convex seat 302, the fixed seat 3 is internally provided with a cavity 303, the lower end of the cavity 303 is larger in size than the outer diameter of the stoma seat 2, both ends of the belly piece 301 are provided with holes 3011, the outer surface of the convex seat 302 is provided with an outer circular surface 3021, and the outer circular surface 3021 is provided with a scale 3024 along the axial direction. The surface of the belly piece 301 is also provided with an annular adhesive 304 Figure 5 , the adhesive shape is a closed ring, the closed ring is internally provided with a hole, the closed ring is located around the lower end of the cavity, and the size of the hole is larger than that of the lower end of the cavity. The upper end of the outer circular surface 3021 is provided with an annular groove 3022, the top is provided with a clamping groove 3023, the left and right and front and back positions of the convex seat 302 are respectively provided with ball seats 3026, the ball seats 3026 are matched with the spherical surface of the convex seat 302, so there is a degree of activity in situ, and a rotation stopping hole 3025 is provided beside the ball seat.

[0065] The binding belt 7 is arranged in the hole 3011 of the fixed seat 3, and is used together with the annular adhesive 304 to fix the present application to the abdominal surface of the child patient. The binding belt 7 is provided with a plurality of bristles, one end of the binding belt 7 is fixedly connected with one hole 3011 of the fixed seat 3, and the other end is provided with a bristle structure (not shown): one section is provided with a bristle block, and the other section is provided with a long bristle block, and the other end is detachably connected with the other hole 3011 of the fixed seat 3 by using the bristle structure, so as to adjust the length of the binding belt 7, and cooperate with the annular adhesive 304 on the fixed seat 3 to use, so that the present application is fixed on the abdomen of the child patient in a sliding manner.

[0066] As shown in Figure 6 , the ball joint structure 4 includes a ball head 401 and left and right and front and back adjusting knobs 402 arranged on the side surface of the ball head, the left and right and front and back adjusting knobs 402 are used to adjust the position of the ball head 401 in the cavity 303 of the fixed seat 3, so as to finally control the orientation of the probe 1; the ball head 401 is provided with a connecting seat 4011, and is movably connected with the left and right and front and back adjusting knobs 402 through the connecting seat 4011, the left and right and front and back adjusting knobs 402 include a rotation stopping spring 4025, an orientation adjusting screw 4024, a rotation stopping pin 40231, a clutch 4023, a clutch spring 4022 and a square handle seat 4021, the left and right and front and back adjusting knobs 402 are distributed at an angle of 90°, and are all threadedly connected on the ball seat 3026 of the fixed seat 3, and the rotation stopping pin 40231 is matched in size with the rotation stopping hole 3025. When it is needed to adjust the left and right and front and back positions of the ball head 401, the clutch 4023 can be pulled outward to make the rotation stopping pin 4031 disengage from the rotation stopping hole 3025, then the left and right and front and back adjusting knobs 402 are rotated to the appropriate position, the clutch 4023 is released to make the rotation stopping pin 4031 reinserted into the rotation stopping hole 3025, and the adjustment is completed. In order to more finely adjust the position of the ball head 401 in the cavity 303, a circle of stopping holes 40232 can be processed on the clutch 4023 instead of the rotation stopping pin 40231Figure 7 ), and a stop pin 3027 is set at the position of the anti-rotation hole 3025 to match it ( ), Figure 8 The direction control of probe 1 is as follows: the upper universal ball 103 serves as the fulcrum, and the ball head 401 passing through the ball joint structure 4 in the middle serves as the moving point. By adjusting the left and right and front and back adjustment knobs 402, the position of the moving point ball head 401 at the top of probe 1 can be changed (relative to the patient's stomach). With the control of the pushing mechanism 6, the vertical position of the ball head 101 can also be changed (relative to the patient's stomach).

[0067] like Figure 9 As shown, the self-locking ring 5 is provided with locking teeth 501 and locking teeth 502.

[0068] like Figure 10 As shown, the pushing mechanism 6 includes a screw 602, a ball groove 601 at the lower end of the screw 602, a drive nut 604, and an unlocking key 603 on the drive nut 604. The inner wall of the drive nut 604 has an internal thread 6042, which cooperates with the external thread on the screw 602, thereby setting the pushing mechanism 6 on the boss 302 of the fixed seat 3. The inner wall of the lower end of the drive nut 604 has a small boss 6041, which cooperates with the annular groove 3022 of the fixed seat 3 for axial limiting of the drive nut 604, so that the drive nut 604 can only rotate in place. In addition, the screw 602 has an anti-rotation wedge that cooperates with the axial guide groove (not shown) on the cavity 303 in the fixed seat 3, which restricts the rotational movement of the screw 602 around the axis. Therefore, when the drive nut 604 is rotated, the screw 602 can only move linearly up and down in the axial direction, which can be driven. The universal ball 103 of probe 1 is engaged with the ball groove 601 and is movably connected. Thus, rotating the drive nut 604 allows the screw 602 to be finely adjusted along the cavity axis to determine the depth. The scale 6021 is fixed to the screw 602 and can move accordingly, thereby indicating different scales 3024.

[0069] like Figure 11 As shown, see also Figure 12 The self-locking ring 5 is located between the push mechanism 6 and the protrusion of the fixed seat 3 to lock the movement of the push mechanism 6. The push mechanism 6 has an unlocking key 603 on its side. The unlocking key 603 is elastically connected to the drive nut 604. The unlocking key 603 has a locking head 6031 that matches the locking tooth 502. When the unlocking key 603 is pressed, the locking head 6031 disengages from the locking tooth 502, so that the drive nut 604 can be rotated. Otherwise, when the self-locking key 603 is released, the locking head 6031 re-energizes and matches the locking tooth 502 due to elastic recovery. Since the self-locking ring 5 has a locking tooth 501, the locking tooth 501 is stuck in the slot 3023 at the upper end of the fixed seat 3, so the self-locking ring 5 itself cannot rotate, thereby restricting the rotation of the drive nut 604. Finally, the screw 602 is locked in the axial position.

[0070] In addition, in order to facilitate the accurate shaping of the round bar 102 of the probe 1, and more accurately adjust the extension position and direction of the bar bump 101 of the probe 1 to the lower blind end of the esophagus, the convex seat 302 and the belly piece 301 of the fixing seat 3 can also be detachably connected and have a positioning relationship, as shown in Figure 13 The belly piece 301 is provided with an external thread 3012 and a positioning groove 3013, and the convex seat 302 is provided with a positioning block 305, a stop 306, a rubber ring 307, and a screw cap 308, so as to facilitate the disassembly and reassembly of the convex seat 302 in the original position, effectively prevent the position change of the probe 1 before and after shaping, and reduce the pain of the child caused by repeatedly tearing the annular adhesive 304 during the observation and shaping of the probe 1.

[0071] Embodiment two:

[0072] Referring to Figure 14 In order to better promote the advancing direction of the probe 1, the outer cylindrical surface 3021 can also move forward in the tangential direction, so as to jointly adjust the forward and backward adjusting knobs in the left and right adjusting knobs 402, so that the bar bump 101 obtains tangential displacement and force. The convex seat 302 is provided with a long circular hole 3028 and a leakage prevention ring 3029, the outer cylindrical surface 3021 is provided with a sliding plate 30211 and a pressing pin 30212. After adjusting the tangential position of the outer cylindrical surface 3021, the pressing pin 30212 can lock the position of the sliding plate 30211 and provide pressure to the sliding plate 30211, pressing the leakage prevention ring 3029.

[0073] Embodiment three:

[0074] Referring to Figure 15 The pushing mechanism 6 further comprises an elastic pressure device 8, which comprises a movable pin 801, a new screw rod 802, a spring 803, a spring seat 804, a transparent cover 805, an elastic force indicating needle 806, and a moving piece 807.

[0075] The movable pin 801 is provided with a movable ball groove one 8012 at the lower end, which is movably connected with the ball pair of the universal ball 103 of the probe 1, instead of the ball groove of the pushing mechanism 6; the upper end of the movable pin 801 is provided with a flange 8011, which cooperates with the upper limiting edge 8021 and the lower limiting edge 8022 of the new screw rod 802, so that the movable pin 801 can only move between the upper limiting edge 8021 and the lower limiting edge 8022.

[0076] The spring 803 has two identical springs, and the moving piece 807 is located between the two springs. The elastic force indicating needle 806 is fixedly connected with the moving piece 807, and is provided with an indicating scale on the elastic force indicating needle 806 to display the compression condition of the spring 803. The transparent cover 805 can not only see the compression condition of the spring 803, but also prevent the elastic force indicating needle 806 from being touched.

[0077] The spring seat 804 is fixed on the driving nut 604 to provide support force for the spring 803, so that the elastic force of the spring 803 is transmitted to the movable pin 801, and then to the probe 1, and finally to the lower blind end of the esophagus.

[0078] The new screw rod 802 works instead of the original screw rod 602. When the driving nut 604 of the pushing mechanism 6 drives the new screw rod 802 to move downward by a certain amount, the spring 803 is compressed, the elastic force indicating needle 806 extends and shows the compression state, so that the appropriate extension amount can be preset according to the pressure; after the lower blind end of the esophagus is extended, the pressure decreases, the spring 803 returns to the original position, and then the elastic force indicating needle 806 retracts, so that it can be indirectly known whether the lower blind end of the esophagus is extended, so that the new extension amount of the lower blind end of the esophagus can be considered again.

[0079] Moreover, different flexibility of the pushing can be obtained by replacing the spring 803 with different stiffness.

[0080] Example four:

[0081] Referring to Figure 16 , in combination with Figure 17 , the present application further comprises a flexible pressure device 10, which comprises a balloon 1001, a gas delivery tube 1002, a gas bag 1003, an inflation seat 1004 and an inflation port 1005, which are connected in sequence to form a complete gas passage; at this time, the probe 1 is changed to a hollow elbow pipe 9 with open ends and a hollow type, the gas delivery tube 1002 is inserted into the hollow elbow pipe 9, the front end is connected with the balloon 1001, and the balloon 1001 replaces the probe 101 to push the esophagus, and the rear end of the gas delivery tube 1002 is connected with the gas bag 1003.

[0082] The inflation device with a pressure gauge is used, the gas bag 1003 can be inflated by a certain pressure through the inflation port 1005, the direction is controlled by the hollow elbow pipe 9, and the balloon 1001 replaces the probe 101 to push and extend the lower blind end of the esophagus. Because the inflation pressure of the balloon 1001 is different, and the lower blind end of the esophagus presses the balloon 1001, different diameter and different flexibility of the pushing for the extension drive of the lower blind end of the esophagus can be provided.

[0083] Example five:

[0084] Referring to Figure 18 , Figure 19The present application also comprises a feeding mechanism 11, which comprises a feeding tube 1101, a pressing ring 1102 and an elastic rubber pad 1103. The elastic rubber pad 1103 and the pressing ring 1102 are installed at the bottom of the belly piece 301 and the lower end of the cavity 303 of the fixing base 3. The bottom of the belly piece 301 is provided with a short screw hole 309, the elastic rubber pad 1103 is embedded in the short screw hole 309, and the pressing ring 1102 is connected to the elastic rubber pad 1103 by screwing. One end of the feeding tube penetrates the elastic rubber pad and enters the stomach of the patient, and the other end of the feeding tube is provided with a port which penetrates the convex base 302 of the fixing base 3 and is exposed outside the body, so as to facilitate the injection of food into the stomach.

[0085] The elastic rubber pad 1103 has good elasticity, is provided with small holes through which the probe 1 can pass, and can prevent the food from contacting the air outside and overflowing from the stomach to the belly piece 301. The elastic rubber pad 1103 is provided with a connecting head required by the feeding tube 1101.

[0086] Further, the elastic rubber pad 1103 is also provided with a vacuum suction cup 11031 which cooperates with the upper surface of the stoma seat 2 to prevent the food from flowing out of the stoma seat 2.

[0087] Embodiment six:

[0088] Referring to Figure 20 , in combination Figure 21 The present application can also use the probe 1 to feed, that is, a half-empty strip tube 12 is provided, the upper section of the half-empty strip tube 12 is provided with an empty tube 1201, the top end of the upper section is provided with an inlet 1203, the middle part is provided with the same hole as the empty tube 1201, the feeding tube 1101 penetrates the hole and extends into the stomach, and the other end of the feeding tube 1101 is provided with a feeding port which extends from the middle part of the screw rod 602 of the pushing mechanism 6.

[0089] Further, referring to Figure 21 , in combination Figure 20 The feeding tube 1101 can also be omitted, and the half-empty strip tube 12 is used. A ball pair meshing cover is arranged at the contact position of the half-empty strip tube 12 and the screw rod 602, the upper end of the half-empty strip tube 12 is meshed with the ball 1202 and is pressed toward the ball groove 601 at the lower end of the screw rod 602, the screw rod 602 is hollow in the middle, and a feeding tube is arranged at the top. In order to prevent liquid leakage, a groove is processed around the inlet 1203 of the meshing ball 1202 and an O-ring 1204 is arranged.

[0090] The present application can stimulate the esophagus by inserting the probe into the esophagus of the patient, promote the growth of the esophagus, accurately control the required pushing amount and pushing direction every day through the ball hinge structure with scale indication, the pushing mechanism and the self-locking ring, promote the uniform and stable growth of the esophagus, realize the change of the pushing force and the flexibility through the spring and the tracheal flexible mechanism, and realize the adjustment of the pushing force, the direction and the length, so as to better achieve the expected goal and save as many lives as possible.

[0091] The above merely preferred embodiments of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements should also be considered within the scope of the present application.

Claims

1. A device for promoting the growth of the lower blind end of the esophagus, characterized in that: The device includes a probe, a stoma seat, a fixation seat, a ball joint mechanism, and a pushing mechanism. The stoma seat is connected to the patient's stoma. The fixation seat has a hollow internal structure, with the front end of the cavity larger than the stoma seat. The ball joint mechanism is located within the hollow structure, and the pushing mechanism is positioned behind the cavity. The probe is connected to the pushing mechanism, and its front end passes through the ball joint mechanism and extends from the stoma seat. A strap is provided on the fixation seat, and an abdominal patch is located at the front. The ball joint mechanism includes a ball head, left / right adjustment knobs, and a horizontal adjustment knob. The ball head has a through hole in the middle. The left / right and horizontal adjustment knobs each include a directional screw and a square shank seat, arranged at a 90-degree angle. One end of the directional screw is connected to the ball head, and the other end passes through a ball seat on the fixation seat and is threaded onto the ball seat. The end of the directional screw is connected to the square shank seat, and a clutch is provided between the square shank seat and the ball seat. The clutch button and the square handle seat are clearance-fitted, and a clutch spring is provided between them. An anti-rotation component is provided on the mating surface of the clutch button and the ball seat. The pushing mechanism includes a drive nut and a screw. The front end of the drive nut is fitted into the upper opening of the cavity structure of the fixed seat through a self-locking ring, so that the drive nut has rotational freedom but restricts axial movement. The screw is fitted inside the drive nut, and a ball groove is provided at the lower end of the screw. The upper universal ball of the probe is installed in the ball groove. The screw is restricted to rotate by a snap-fit ​​structure provided in the fixed seat. The self-locking ring is provided with locking teeth and locking teeth. A slot is provided at the upper end of the fixed seat. The locking teeth and the slot are fitted together to achieve fixation. An unlocking key is provided on the drive nut. The unlocking key is fitted with the locking teeth. The fixed seat includes a boss and an outer circular surface. An elongated opening is provided above the boss. The outer circular surface is fixed at a position along the length of the elongated opening by fasteners.

2. The esophageal lower blind end elongation device according to claim 1, characterized in that: The fixing seat includes a boss, which is connected to the belly patch by a thread.

3. The esophageal lower blind end elongation device according to claim 2, characterized in that: The belly patch and the protrusion are respectively provided with positioning blocks and positioning grooves. When the protrusion is fixed to the belly patch by threads, it is positioned by the positioning blocks and positioning grooves. A rubber ring is also provided between the protrusion and the belly patch.

4. The esophageal lower blind end elongation device according to any one of claims 1 to 3, characterized in that: The fixed base is provided with a scale along the axial direction, and a scale is provided on the pushing mechanism. The scale and the scale work together to measure the amount of movement of the probe pushed by the pushing mechanism.

5. The esophageal lower blind end elongation device according to any one of claims 1 to 3, characterized in that: A feeding mechanism is also provided on the fixed base. The feeding mechanism includes a feeding tube, the upper end of which extends through the side of the fixed base and the lower end extends below the belly patch of the fixed base.

6. The esophageal lower blind end elongation device according to claim 5, characterized in that: An elastic rubber pad is provided on the belly-mounted plate of the fixing seat, and a vacuum suction cup is also provided on the elastic rubber pad, through which the feeding tube passes.

7. The esophageal lower blind end elongation device according to claim 1, characterized in that: The upper section of the probe is an empty tube, which is connected to the outlet hole in the middle of the probe. The upper end of the empty tube is connected to the pushing mechanism, and a feeding port is provided at the outlet of the pushing mechanism.

8. The esophageal lower blind end elongation device according to claim 7, characterized in that: A feeding tube is installed inside the empty tube. The lower end of the feeding tube passes through the outlet hole in the middle of the probe, and the upper end passes through the pushing mechanism and extends out from the outlet position of the pushing mechanism.

9. The esophageal lower blind end elongation device according to any one of claims 1 to 3, characterized in that: The surface of the abdominal patch is provided with a ring-shaped adhesive, which is located on the outer edge of the lower end of the cavity structure.

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