Pusher for sponge adsorption head of esophageal fistula

Abstract

The utility model provides a pusher for a sponge adsorption head of esophageal fistula, the pusher for the sponge adsorption head of esophageal fistula comprises a sponge adsorption head, a drainage tube, an outer sleeve and a push tube, a first hollow part in the sponge adsorption head is connected with a first end of the drainage tube, a second end of the drainage tube passes through a second hollow part in the push tube, and the outer sleeve is connected with the push tube. And the push tube penetrates through the third hollow part in the outer sleeve. The utility model solves the problem of how to convey the sponge adsorption head to the esophageal fistula of a patient more conveniently in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, especially relates to a pusher for sponge adsorption head of esophageal fistula. BACKGROUND

[0002] At present, after the patient of esophageal fistula is given medicine outside the body, in the treatment process, the esophageal fistula will become smaller and smaller, and liquid (such as pus, exudate and necrotic secretion etc.) will be produced in the fistula, which needs to be sucked out of the body. The operator generally uses an esophagoscope to clamp the sponge adsorption head, and then inserts the sponge adsorption head into the esophagus and sends it to the fistula, but in this process, because the sponge adsorption head is in an expanded state, the volume is large, and it is easy to appear jam and difficult to push.

[0003] Therefore, how to send the sponge adsorption head to the fistula of the patient's esophagus more conveniently becomes a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a pusher for sponge adsorption head of esophageal fistula, which mainly solves the problem of how to send the sponge adsorption head to the fistula of the patient's esophagus more conveniently in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A pusher for sponge adsorption head of esophageal fistula, characterized in that: the pusher for sponge adsorption head of esophageal fistula comprises a sponge adsorption head, a drainage tube, an outer sleeve tube and a push tube, a first hollow part inside the sponge adsorption head is connected to the first end of the drainage tube, the second end of the drainage tube passes through the second hollow part inside the push tube, and the push tube passes through the third hollow part inside the outer sleeve tube.

[0007] Further, the pusher for sponge adsorption head of esophageal fistula further comprises a connecting head, the second end of the outer sleeve tube is connected to a first fixed head, the second end of the push tube is connected to a second fixed head, a fourth hollow part inside the connecting head is sleeved on the push tube, and the first end of the push tube corresponds to the sponge adsorption head.

[0008] The first end of the connecting head is detachably connected to the first fixed head, and the second end of the connecting head is detachably connected to the second fixed head.

[0009] Further, the first fixed head is provided with a first internal thread, the first end of the connecting head is provided with a first external thread, and the first internal thread and the first external thread are connected.

[0010] The second end of the connecting head is provided with a second internal thread, the second fixed head is provided with a second external thread, and the second internal thread and the second external thread are connected.

[0011] Further, the outer side surface of the connecting head is provided with a ring of concave parts.

[0012] Further, the first fixed head first end is provided with an inner extension extending radially inward, the inner extension forms a first opening part for the outer sleeve to pass through, the outer sleeve second end is provided with an outer extension extending radially outward, the inner extension and the outer extension form a clamping connection.

[0013] Further, the connecting head is a three-way connecting head, the first end of the three-way connecting head is an output end, the output end corresponds to the first fixed head, the second end of the three-way connecting head is an input end, the input end corresponds to the second fixed head, and the third end of the three-way connecting head is an operation end for injecting liquid into the gap between the three-way connecting head and the push tube.

[0014] Further, the outer extension and the first end of the three-way connecting head are provided with a sealing ring.

[0015] Further, the first fixed head is hollow, a part of the first fixed head close to the first end of the first fixed head is a first segment of the first fixed head, the first segment of the first fixed head is in the shape of a hollow truncated cone, and the small circle of the truncated cone corresponds to the second end of the outer sleeve.

[0016] A part of the first fixed head close to the second end of the first fixed head is a second segment of the first fixed head, the second segment of the first fixed head is in the shape of a hollow cylinder, and the first internal thread is arranged on the inner side surface of the second segment of the first fixed head.

[0017] The first end of the three-way connecting head comprises a first segment of the three-way connecting head in the shape of a cone and a second segment of the three-way connecting head in the shape of a cylinder, the shape of the first segment of the three-way connecting head matches the shape of the first segment of the first fixed head, and the first external thread is arranged on the outer side surface of the second segment of the three-way connecting head.

[0018] The second end of the three-way connecting head is provided with a groove, the second internal thread is arranged on the inner side surface of the groove, and the bottom of the groove is provided with an opening in communication with the fourth hollow part.

[0019] Further, the outer side surface of the second segment of the first fixed head is provided with a first protruding horizontal strip.

[0020] The outer side surface of the second fixed head is provided with a second protruding horizontal strip.

[0021] In view of the above technical features, the utility model has the following beneficial effects:

[0022] 1. The pusher for the sponge adsorption head of esophageal fistula, the first hollow part in the sponge adsorption head is connected to the first end of the drainage tube, the second end of the drainage tube passes through the second hollow part in the push tube, and the first end of the push tube passes through the third hollow part in the outer sleeve tube. At this time, the pusher for the sponge adsorption head of esophageal fistula is the outer sleeve tube, the push tube and the drainage tube from outside to inside in turn, that is, the push tube wraps the drainage tube, and the outer sleeve tube wraps the push tube. Before use, the sponge adsorption head is rolled and shrunk into the outer sleeve tube, then the outer sleeve tube (at this time, the outer sleeve tube has the sponge adsorption head and the push tube) is inserted into the fistula opening of the esophagus of the patient, and then the push tube is pushed, so that the sponge adsorption head is pushed out of the outer sleeve tube, the rolled and shrunk sponge adsorption head is inflated and restored to its original shape at the fistula opening of the esophagus and covers the fistula opening, so that the placement operation of the sponge adsorption head is realized, and the sponge adsorption head can be more conveniently sent to the fistula opening of the esophagus of the patient.

[0023] 2. The pusher for the sponge adsorption head of esophageal fistula, a connecting head, a first fixing head connected with the outer sleeve tube and a second fixing head connected with the push tube are arranged, and the connecting head, the first fixing head and the second fixing head are detachably connected. When the pusher is used, the operator can better move the outer sleeve tube and the push tube, complete the placement operation of the sponge adsorption head in the esophagus of the patient, so that the sponge adsorption head can be more conveniently sent to the fistula opening of the esophagus of the patient, and the connecting head, the first fixing head and the second fixing head can be connected during the placement process, the position between the outer sleeve tube and the push tube is fixed, and accidental movement of the sponge adsorption head in the esophagus of the patient is avoided.

[0024] 3. The pusher for the sponge adsorption head of esophageal fistula, the connecting head is a three-way connecting head, the detachable connection between the connecting head, the first fixing head and the second fixing head is realized, and the third end of the three-way connecting head can be used as an operation end to input liquid into the three-way connecting head, so that the liquid flows to the fistula opening of the esophagus of the patient through the gap between the three-way connecting head and the push tube and the gap between the push tube and the outer sleeve tube, and the functions of medicine adding and / or flushing at the fistula opening are realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structure diagram of the pusher for the sponge adsorption head of esophageal fistula in embodiment 1. Figure 1 .

[0026] Figure 2 is Figure 1 A-A sectional view in embodiment 1.

[0027] Figure 3 is Figure 2 B sectional view in embodiment 1.

[0028] Figure 4 is a structure diagram of the first fixing head in embodiment 1.

[0029] Figure 5 is a structural diagram of a pusher for a sponge suction head of an esophageal fistula in embodiment 1 Figure 2 .

[0030] Figure 6 is a structural diagram of a sponge suction head and a drainage tube in embodiment 1.

[0031] Figure 7 is a structural diagram of a push tube and a second fixed head in embodiment 1.

[0032] Figure 8 is Figure 7 a C-C cross-sectional view in embodiment 1.

[0033] Figure 9 is a structural diagram of an outer sleeve, a first fixed head and a connecting head in embodiment 1.

[0034] Figure 10 is Figure 9 a D-D cross-sectional view in embodiment 1.

[0035] Figure 11 is a structural diagram of a pusher for a sponge suction head of an esophageal fistula in embodiment 2 Figure 3 .

[0036] Figure 12 is Figure 11 an E-E cross-sectional view in embodiment 2.

[0037] Figure 13 is a structural diagram of an outer sleeve, a first fixed head and a tee connecting head in embodiment 2.

[0038] In the figure: 1, sponge suction head; 11, first hollow part;

[0039] 2, drainage tube; 21, first end of drainage tube; 22, second end of drainage tube;

[0040] 3, outer sleeve; 31, first end of outer sleeve; 32, second end of outer sleeve; 33, third hollow part; 34, outer extension;

[0041] 4, push tube; 41, first end of push tube; 42, second end of push tube; 43, second hollow part;

[0042] 5, first fixed head; 51, first end of first fixed head; 52, second end of first fixed head; 53, first internal thread; 54, first section of first fixed head; 55, second section of first fixed head; 56, inner extension; 57, first opening part; 58, first protruding horizontal strip; 59, fifth hollow part;

[0043] 6, connector / tee connector; 61, connector / tee connector first end; 62, connector / tee connector second end; 622, groove; 63, tee connector third end; 64, fourth hollow portion; 65, first external thread; 66, second internal thread; 67, internal recess; 68, tee connector first section; 69, tee connector second section;

[0044] 7, second fixed head; 71, second fixed head outer side near the connector section; 72, second fixed head outer side away from the connector another section; 73, second external thread; 74, second raised horizontal bar. DETAILED DESCRIPTION

[0045] The utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0046] Reference Figures 1 to 10 , specific embodiment 1, this embodiment 1 provides a kind of esophageal fistula's sponge suction head's pusher, the esophageal fistula's sponge suction head's pusher includes sponge suction head 1, drainage tube 2, sheath tube 3 and push tube 4, the first hollow portion 11 inside sponge suction head 1 is connected in drainage tube first end 21, drainage tube second end 22 passes through the second hollow portion 43 inside push tube 4, push tube first end 41 passes through the third hollow portion 33 inside sheath tube 3.At this time, esophageal fistula's sponge suction head's pusher is from outside to inside in order sheath tube 3, push tube 4 and drainage tube 2, i.e. push tube 4 is wrapped drainage tube 2, sheath tube 3 is wrapped push tube 4.When esophageal fistula's sponge suction head's pusher is used, operator first retracts sponge suction head 1 to sheath tube 3, at this time, sponge suction head 1 and push tube 4 are all in the third hollow portion 33 of sheath tube 3, sheath tube 3 is inserted into patient esophagus until sheath tube first end 31 is sent to the vicinity of fistula, then push tube 4 is pushed forward, and push tube first end 41 pushes sponge suction head 1 and moves forward until sponge suction head 1 is completely removed from sheath tube 3, and sponge suction head 1 is inflated and restored to original shape and covers at fistula, then push tube 4 is pulled out from the gap between drainage tube 2 and sheath tube 3, until push tube 4 and sheath tube 3 are separated, because drainage tube 2 and push tube 4 are separated, finally sheath tube 3 is pulled out backward, until drainage tube 2 and sheath tube 3 are separated, ensure that sponge suction head 1 and drainage tube 2 remain, realize the placement operation of sponge suction head 1.

[0047] In the process of moving the sponge adsorption head 1 to the esophageal fistula, the sponge adsorption head 1 is always in a compressed state and is accommodated in the third hollow portion 33 of the outer sleeve tube 3, so that the volume of the outer sleeve tube 3 and the sponge adsorption head 1 therein is small, and it is not easy to cause jamming and pushing difficulty, that is, the sponge adsorption head 1 can be more conveniently sent to the esophageal fistula of the patient. In the moving process of the sponge adsorption head 1, because the outer sleeve tube 3 has a small volume (compared with the esophageal mirror and / or the sponge adsorption head 1 in the expanded state), the sensitive nerves in the throat are not stimulated, and the nausea and vomiting reflex of the patient is avoided, and the comfort of the patient is improved.

[0048] Preferably, the pusher for the sponge adsorption head of the esophageal fistula further comprises a connecting head 6, the second end 32 of the outer sleeve tube is connected to the first fixed head 5 (such as connected by glue), the second end 42 of the push tube is connected to the second fixed head 7 (such as connected by glue), the fourth hollow portion 64 in the connecting head 6 is sleeved on the push tube 4, the first end 41 of the push tube corresponds to the sponge adsorption head 1, and the push tube 4 is used to push the sponge adsorption head 1 out of the outer sleeve tube 3, so that the sponge adsorption head 1 is inflated and expanded at the esophageal fistula of the patient and covers the fistula; the first end 61 of the connecting head is detachably connected to the first fixed head 5, and the second end 62 of the connecting head is detachably connected to the second fixed head 7. Before the sponge adsorption head 1 is moved to the esophageal fistula, the first end 61 of the connecting head is connected to the first fixed head 5, and the second fixed head 7 is temporarily connected to the connecting head 6, so that the user holds the connecting head 6 with one hand, and the user holds the second fixed head 7 with the other hand to accurately control the synchronous movement of the outer sleeve tube 3 containing the compressed sponge adsorption head 1 and the push tube 4 in the esophagus of the patient, until the first end 31 of the outer sleeve tube is sent to the vicinity of the fistula. Then the user holds the connecting head 6 with one hand and holds the second fixed head 7 with the other hand to control the movement accuracy of the push tube 4, to ensure that the sponge adsorption head 1 moved out of the outer sleeve tube 3 is aligned with the fistula and is inflated, so that the inflated sponge adsorption head 1 completely covers the fistula. At this time, the second end 62 of the connecting head can be connected to the second fixed head 7 to fix the relative position between the outer sleeve tube 3 and the push tube 4, that is, the push tube 4 cannot move in the outer sleeve tube 3 at this time, and the position of the sponge adsorption head 1 in the esophagus is relatively stable and cannot move randomly. Conversely, when the sponge adsorption head 1 is placed, the second fixed head 7 and the connecting head 6 are first detached and separated, the push tube 4 is first moved backward, the push tube 4 is extracted, and then the connecting head 6 is moved backward, so that the connecting head 6 moves backward with the outer sleeve tube 3, and the outer sleeve tube 3 is extracted.

[0049] The first fixed head 5 is provided with a first internal thread 53 in the first embodiment 1, the first end 61 of the connecting head is provided with a first external thread 65, the first internal thread 53 and the first external thread 65 are connected, that is, the first internal thread 53 and the first external thread 65 realize the detachable connection between the first fixed head 5 and the connecting head 6; the second end 62 of the connecting head is provided with a second internal thread 66, the second fixed head 7 is provided with a second external thread 73, the second internal thread 66 and the second external thread 73 are connected, that is, the second internal thread 66 and the second external thread 73 realize the detachable connection between the connecting head 6 and the second fixed head 7.

[0050] The outer side of the connecting head 6 is provided with a circle of concave parts 67, which is convenient for the user to hold the connecting head 6 and apply force to the connecting head 6, thereby indirectly controlling the forward and backward movement of the outer sleeve 3.

[0051] In the first embodiment 1, the first end 51 of the first fixed head is provided with an inwardly extending internal extension 56, the internal extension 56 forms a first opening part 57 for the outer sleeve 3 to pass through, the second end 32 of the outer sleeve is provided with an outwardly extending external extension 34, and the internal extension 56 and the external extension 34 form a clamping connection.

[0052] When the outer sleeve 3 is embedded in the first opening part 57, the internal extension 56 and the external extension 34 abut, the first fixed head 5 and the connecting head 6 are connected, such as the first internal thread 53 of the inner side wall of the first fixed head 5 and the first external thread 65 of the outer side of the connecting head 6 are screwed, the first end 61 of the connecting head and the internal extension 56 together clamp the external extension 34, realizing the connection and fixation between the first fixed head 5, the connecting head 6 and the outer sleeve 3.

[0053] The outer side of the first fixed head second section 55 is provided with a first raised horizontal bar 58, which increases the friction of the operator rotating the first fixed head 5; the second fixed head 7 is a hollow cylinder, the push tube 4 passes through the hollow part of the second fixed head 7, and the push tube 4 and the hollow part of the second fixed head 7 are connected, such as fixed connection by using glue. The outer side of the second fixed head 7 is provided with a second raised horizontal bar 74, which increases the friction of the operator rotating the second fixed head 7. For example, the outer side of the second fixed head 7 is provided with a second external thread 73 near the connecting head 6, and the other section 72 of the outer side of the second fixed head away from the connecting head is provided with a second raised horizontal bar 74.

[0054] Referring to Figures 11 to 13 , in a specific embodiment 2, the embodiment 2 provides a pusher for a sponge adsorption head of esophageal fistula, and the difference between the first embodiment 1 and the second embodiment 2 is that the connecting head 6 is a three-way connecting head 6, the first end 61 of the three-way connecting head is an output end, the output end corresponds to the first fixed head 5, the second end 62 of the three-way connecting head is an input end, the input end corresponds to the second fixed head 7, and the third end 63 of the three-way connecting head is an operating end for injecting liquid into the gap between the three-way connecting head 6 and the push tube 4.

[0055] In this embodiment 2, the first end 61 and the second end 62 of the three-way connector are communicated to form a hollow passage (i.e. the fourth hollow part 64) for the push tube 4 to pass through, and the third end 63 of the three-way connector is communicated with the hollow passage. There is a gap between the push tube 4 and the hollow passage, which facilitates the movement of the push tube 4 in the hollow passage of the three-way connector 6. When the placement operation of the sponge suction head 1 is implemented, the outer sleeve tube 3 is inserted into the esophagus of the patient, and the liquid can also be injected into the gap between the three-way connector 6 and the push tube 4 by using the third end 63 (i.e. the operation end) of the three-way connector. The liquid flows into the esophagus of the patient through the gap between the push tube 4 and the outer sleeve tube 3, and the operation of adding medicine or flushing into the esophagus is realized.

[0056] The sealing ring is arranged between the outer extension part 34 and the first end 61 of the three-way connector. When the first internal thread 53 on the inner side wall of the first fixed head 5 and the first external thread 65 on the outer side surface of the connector 6 are screwed, the first end 61 of the three-way connector and the inner extension part 56 together clamp the outer extension part 34 and the sealing ring. This not only realizes the connection and fixation between the first fixed head 5, the three-way connector 6 and the outer sleeve tube 3, but also realizes the sealing between the outer sleeve tube 3 and the three-way connector 6. When the liquid is injected into the gap between the three-way connector 6 and the push tube 4 by using the third end 63 (i.e. the operation end) of the three-way connector, the liquid will not penetrate or leak into the gap between the three-way connector 6 and the first fixed head 5, ensuring that the liquid flows smoothly into the gap between the push tube 4 and the outer sleeve tube 3 and then flows into the esophagus of the patient, avoiding unnecessary loss of liquid.

[0057] The first fixed head 5 is hollow. The part of the first fixed head 5 close to the first end 51 is the first section 54 of the first fixed head, which is in the shape of a hollow truncated cone, and the small circle of the truncated cone corresponds to the second end 32 of the outer sleeve tube;

[0058] The part of the first fixed head 5 close to the second end 52 is the second section 55 of the first fixed head, which is in the shape of a hollow cylinder, and the first internal thread 53 is arranged on the inner side surface of the second section 55 of the first fixed head;

[0059] The first end 61 of the tee connector comprises a tapered first section 68 and a cylindrical second section 69. The shape of the first section 68 matches the shape of the first section 54 of the first fixing head. The first external thread 65 is arranged on the outer side of the second section 69. When the first end 61 of the tee connector is inserted into the fifth hollow portion 59 of the first fixing head 5, the first internal thread 53 of the inner side wall of the first fixing head 5 and the first external thread 65 of the outer side of the second section 69 are screwed. The tighter the screwing, the tighter the outer extension 34 and the sealing ring are clamped by the first end 61 of the tee connector and the inner extension 56, and the better the sealing effect. In this process, the first section 54 of the first fixing head, which is in the shape of a hollow frustum of a cone, guides the first end 61 of the tee connector, ensuring that the first end 61 of the tee connector is aligned with the sealing ring and the outer extension 34, facilitating the axial alignment of the first end 61 of the tee connector and the inner extension 56, and helping the first end 61 of the tee connector and the inner extension 56 to better clamp the outer extension 34 and the sealing ring together.

[0060] The second end 62 of the tee connector is provided with a groove 622. The second internal thread 66 is arranged on the inner side of the groove 622. The groove 622 is provided with an opening that communicates with the fourth hollow portion 64. A section 71 of the outer side of the second fixing head near the connector is inserted into the groove 622 of the second end 62 of the tee connector. The second external thread 73 and the second internal thread 66 are screwed, realizing the connection and fixation of the tee connector 6 and the second fixing head 7. At this time, the push tube 4 connected with the second fixing head 7 is inserted into the opening at the bottom of the groove 622 from the middle of the groove 622, and then inserted into the fourth hollow portion 64 in the connector 6, and enters the third hollow portion 33 in the outer sleeve tube 3.

[0061] Specific embodiment 3, a pusher for a sponge suction head of an esophageal fistula is provided in this embodiment 3, the pusher for the sponge suction head of the esophageal fistula includes a sponge suction head 1, a drainage tube 2, an outer sleeve tube 3 and a push tube 4, a first hollow part 11 inside the sponge suction head 1 is connected to the first end 21 of the drainage tube, the second end 22 of the drainage tube passes through the second hollow part 43 inside the push tube 4, and the first end 41 of the push tube passes through the third hollow part 33 inside the outer sleeve tube 3. Even without the connecting head 6, the first fixing head 5 and the second fixing head 7, the placement operation of the sponge suction head 1 in the esophagus of the patient in embodiment 1 can be realized. During the movement of the sponge suction head 1 to the esophageal fistula, the sponge suction head 1 is always in a compressed state and is accommodated in the third hollow part 33 of the outer sleeve tube 3, so that the volume of the outer sleeve tube 3 and the sponge suction head 1 inside is small, and it is not easy to appear the situation of jamming and pushing difficulty, that is to say, the sponge suction head 1 can be more conveniently sent to the esophageal fistula of the patient. During the movement of the sponge suction head 1, because the volume of the outer sleeve tube 3 is small (compared with the esophageal mirror and / or the sponge suction head 1 in the expanded state), the sensitive nerves of the throat part will not be stimulated, the nausea and vomiting reflex of the patient is avoided, and the comfort of the patient is improved.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0063] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0064] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation obtained by utilizing the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A pusher for a sponge suction head of an esophageal fistula, characterized in that: The pusher for the sponge adsorption head of the esophageal fistula comprises a sponge adsorption head (1), a drainage tube (2), an outer sleeve tube (3), and a push tube (4), a first hollow part (11) in the sponge adsorption head (1) is connected to a first end (21) of the drainage tube, a second end (22) of the drainage tube passes through a second hollow part (43) in the push tube (4), and the push tube (4) passes through a third hollow part (33) in the outer sleeve tube (3).

2. The pusher for the sponge adsorption head of the esophageal fistula according to claim 1, characterized in that: The pusher for the sponge adsorption head of the esophageal fistula further comprises a connecting head (6), a second end (32) of the outer sleeve tube is connected to a first fixed head (5), a second end (42) of the push tube is connected to a second fixed head (7), a fourth hollow part (64) in the connecting head (6) is sleeved on the push tube (4), and a first end (41) of the push tube corresponds to the sponge adsorption head (1); A first end (61) of the connecting head is detachably connected to the first fixed head (5), and a second end (62) of the connecting head is detachably connected to the second fixed head (7).

3. The pusher for the sponge adsorption head of the esophageal fistula according to claim 2, characterized in that: The first fixed head (5) is provided with a first internal thread (53), the first end (61) of the connecting head is provided with a first external thread (65), and the first internal thread (53) and the first external thread (65) are connected; The second end (62) of the connecting head is provided with a second internal thread (66), the second fixed head (7) is provided with a second external thread (73), and the second internal thread (66) and the second external thread (73) are connected.

4. The pusher for the sponge adsorption head of the esophageal fistula according to claim 3, characterized in that: The outer side of the connecting head (6) is provided with a ring-shaped concave part (67).

5. The pusher for the sponge adsorption head of the esophageal fistula according to claim 4, characterized in that: The first end (51) of the first fixed head is provided with an inwardly radially extending internal extension part (56), the internal extension part (56) forms a first opening part (57) for the outer sleeve tube (3) to pass through, the second end (32) of the outer sleeve tube is provided with an outwardly radially extending external extension part (34), and the internal extension part (56) and the external extension part (34) form a clamping joint.

6. The pusher for the sponge adsorption head of the esophageal fistula according to claim 4, characterized in that: The connecting head (6) is a three-way connecting head (6), a first end (61) of the three-way connecting head is an output end, the output end corresponds to the first fixed head (5), a second end (62) of the three-way connecting head is an input end, the input end corresponds to the second fixed head (7), and a third end (63) of the three-way connecting head is an operation end for injecting liquid into a gap between the three-way connecting head (6) and the push tube (4).

7. The pusher for the sponge adsorption head of the esophageal fistula according to claim 6, characterized in that: A sealing ring is arranged between the external extension part (34) and the first end (61) of the three-way connecting head.

8. The pusher for the sponge adsorption head of the esophageal fistula according to claim 7, characterized in that: The first fixed head (5) is hollow, a first section (54) of the first fixed head close to the first end (51) of the first fixed head is in the shape of a hollow truncated cone, and a small circle of the truncated cone corresponds to the second end (32) of the outer sleeve tube; A second section (55) of the first fixed head close to a second end (52) of the first fixed head is in the shape of a hollow cylinder, and the first internal thread (53) is arranged on an inner side of the second section (55) of the first fixed head. The first end (61) of the tee connector comprises a tapered first section (68) of the tee connector and a cylindrical second section (69) of the tee connector, the shape of the first section (68) of the tee connector matches the shape of the first section (54) of the first fixing head, and the first external thread (65) is arranged on the outer side surface of the second section (69) of the tee connector; The second end (62) of the tee connector is provided with a groove (622) at the end, the second internal thread (66) is arranged on the inner side surface of the groove (622), and the bottom of the groove (622) is provided with an opening in communication with the fourth hollow portion (64).

9. The pusher for the sponge adsorption head of the esophageal fistula according to claim 8, characterized in that: The outer side surface of the second section (55) of the first fixing head is provided with a first protruding horizontal strip (58); The outer side surface of the second fixing head (7) is provided with a second protruding horizontal strip (74).

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