CN110522988B - Fixing device and thoracic drainage device - Google Patents

Abstract

The application provides a fixing device and thoracic drainage ware belongs to the medical equipment field. The fixing device includes: the two bonding pieces are arranged oppositely; the first connecting pipe is positioned between the two bonding pieces, and the two bonding pieces are connected to the first connecting pipe; the second connecting pipe is movably arranged in the first connecting pipe and movably arranged along the axial direction of the first connecting pipe. The application provides a fixing device and thoracic drainage ware, through setting up first connecting pipe and second connecting pipe, drainage tube fixed mounting is in the second connecting pipe, and second connecting pipe activity sets up in first connecting pipe and the axially movable setting of second connecting pipe along first connecting pipe, can realize adjusting the length that the drainage tube got into human thorax, helps the drainage to the hydrops of the different degree of depth in the human thorax, has improved thoracic drainage ware's drainage effect.

Description

Fixing device and thoracic drainage device

Technical Field

The application belongs to the field of medical equipment, and relates to a fixing device and a thoracic drainage device.

Background

The thoracic drainage device is a commonly used surgical medical apparatus for guiding pus, blood and liquid accumulated in the thoracic cavity of a human body to the outside of the body to prevent postoperative infection and promote wound healing. The thoracic drainage tube comprises a drainage tube for draining the effusion in the thoracic cavity, in particular: the closed drainage of thorax mainly relies on the liquid in the closed drainage bottle to keep apart external and pleura, in case when long-pending gas appears in patient's pleural cavity, under the highly compressed effect of formation, can arrange the gas or liquid of intracavity to the drainage bottle, and when patient's pleural cavity internal pressure resumes to the negative pressure state, can inhale the drainage tube lower extreme with the liquid in the closed drainage bottle, and then form a negative pressure water column to avoid the air to enter into patient's pleural cavity. Wherein, when the vertical length of drainage tube was enough, under the influence of gravity, certain height can appear in the liquid in the closed drainage bottle to play decompression and drainage's effect. The closed thoracic drainage bottle is placed below the thoracic cavity of a patient, and the liquid level in the bottle is guaranteed to be lower than the thoracic cavity by more than 60cm, so that a good drainage effect is achieved. The length of the chest drainage tube must be proper, the drainage is not smooth due to overlong coiling, however, the position of a patient is changed due to too short unfavorable position, the patient suffers from tractive pain, even the drainage tube is accidentally separated, the pneumothorax or respiratory system is dysfunctional, and the like, and if the drainage tube is not processed in time or is not processed properly, the life safety of the patient is endangered.

When the drainage tube is inserted into the thoracic cavity of the human body, it is required to fix the drainage tube to the human body to prevent the drainage tube from being separated from the thoracic cavity. A common way of fixing the drainage tube is by means of an adhesive tape, in particular: one part of the adhesive tape is adhered to the skin of a human body, the other part of the adhesive tape is adhered to the drainage tube, and the drainage tube cannot be subjected to position adjustment after being fixed by the adhesive tape, so that the drainage effect of the drainage tube is limited.

Disclosure of Invention

Technical problem to be solved

In view of the above technical problems, the present application provides a fixing device and a thoracic drainage device, by

Set up first connecting pipe and second connecting pipe, drainage tube fixed mounting is in the second connecting pipe, and the activity of second connecting pipe sets up in first connecting pipe and the axial movably setting of second connecting pipe along first connecting pipe, can realize adjusting the length that the drainage tube got into human thorax, helps the drainage to the hydrops of the different degree of depth in the human thorax to improve the drainage effect of thoracic drainage ware. Meanwhile, the length of the whole pipeline can be adjusted according to needs by arranging the pipeline adjustable device, and the requirement of changing the body position of a patient is met.

(II) technical scheme

The application provides a fixing device, includes:

the two bonding pieces are arranged oppositely;

the first connecting pipe is positioned between the two bonding pieces, and the two bonding pieces are connected to the first connecting pipe;

the second connecting pipe is movably arranged in the first connecting pipe and movably arranged along the axial direction of the first connecting pipe.

In some embodiments of the present application, a sliding assembly is connected between the second connecting pipe and the first connecting pipe, a sliding direction of the sliding assembly is an axial direction of the first connecting pipe, and the second connecting pipe is slidably disposed in the first connecting pipe through the sliding assembly.

In some embodiments of the present application, a guide groove is axially formed in a side wall of the first connecting pipe, the guide groove penetrates through the side wall of the first connecting pipe, and an adjusting member is disposed on an outer side surface of the second connecting pipe, penetrates through the guide groove, and is in sliding fit with the guide groove in a fixed position.

In some embodiments of the present application, the guide groove is a stepped groove, the stepped groove includes a first groove section and a second groove section that are connected, a groove width of the second groove section is greater than a groove width of the first groove section, the first groove section is located on a side of the second groove section away from the second connecting pipe, the second groove section includes two first side walls along an axial direction of the first connecting pipe, one ends of the two first side walls, which are close to the second connecting pipe, are both provided with a limiting plate, and the two limiting plates are symmetrically provided with a plurality of limiting grooves along the axial direction of the first connecting pipe;

the regulating part is including setting up the piece of stirring on the spliced pole is located to spliced pole and the movable sleeve of second connecting pipe lateral surface, stir the piece including the first end that is arranged in the second groove section, first end is equipped with respectively along the spacing arch of groove width direction extension setting in the both sides of the groove width direction of second groove section, stir the piece and have the limiting position and dodge the position, stir the piece spacing protruding and the spacing cooperation of spacing groove when the limiting position, stir the piece and in dodging the position spacing protruding and spacing groove separation setting, stir the piece and in order to remove between the limiting position and dodge the position along the axially movable setting in position of spliced pole.

In some embodiments of the present application, the toggle member is in limited rotational engagement with the first slot segment.

In some embodiments of the present application, the connection column is cylindrical, the connection column is rotatably disposed on the second connection pipe, an annular position adjustment groove is recessed on an outer peripheral surface of the connection column, the position adjustment groove includes a second side wall and a third side wall which are vertically disposed, the second side wall and the third side wall are both substantially W-shaped, the second side wall includes a first wall section, a second wall section, a third wall section and a fourth wall section which are sequentially connected end to end, the third side wall includes a fifth wall section, a sixth wall section, a seventh wall section and an eighth wall section which are sequentially connected end to end, an interface of the first wall section and the second wall section is located on a right side of an interface of the fifth wall section and the sixth wall section, an interface of the second wall section and the third wall section is located on a left side of an interface of the sixth wall section and the seventh wall section, an interface of the third wall section and the fourth wall section is located on a right side of an interface of the seventh wall section and the eighth wall section, an interface of the fourth wall section and the first wall section is located on a left side of, and the interface of the second and third wall segments is disposed lower than the interface of the fourth and first wall segments;

the stirring piece is equipped with the stopper including the chamber that holds that is used for holding part spliced pole on the lateral wall that holds the chamber, stopper and position control groove sliding fit, and the regulating part is still including being located the elastic component that holds the chamber, and the both ends of elastic component are connected with the spliced pole respectively and the inside wall that holds the chamber to provide the elasticity to dodging the position removal to stirring the piece.

In some embodiments of the present application, the resilient member is a spring or a resilient post.

In some embodiments of the present application, the adhesive member comprises a fan-shaped adhesive tape, the adhesive tape being connected to the first connecting tube.

In some embodiments of the present application, the second connection pipe includes:

the first pipe section is movably connected with the first connecting pipe, a plurality of elastic pieces extend axially on the outer end face of the first pipe section, the elastic pieces are arranged at intervals along the circumferential direction, and external threads are arranged on the outer circumferential surfaces of the elastic pieces;

and the second pipe section is conical, and the inner side wall of the second pipe section is provided with an internal thread in threaded connection with the external thread.

The application also provides a thoracic drainage device, which comprises a drainage tube and a fixing device, wherein the drainage tube is fixedly arranged in the second connecting tube.

(III) advantageous effects

According to the technical scheme, the method has at least one of the following beneficial effects:

(1) the application provides a fixing device and chest drainage ware, through setting up first connecting pipe and second connecting pipe, drainage tube fixed mounting is in the second connecting pipe, and second connecting pipe activity sets up in first connecting pipe and the axially movable setting of second connecting pipe along first connecting pipe, and adjustable drainage tube gets into the length in human thorax, helps the drainage to the hydrops of the different degree of depth in the human thorax, has improved the drainage effect of chest drainage ware. Meanwhile, due to the arrangement of the pipeline adjustable device, the patient can change the body position more flexibly, pain caused by traction is reduced, and slippage of the thoracic duct can be effectively reduced; ensuring the safety of the patient with closed thoracic drainage.

(2) The application provides a fixing device and chest drainage ware can press from both sides the drainage tube through the first tube section and the second tube section of mutually supporting to avoid the drainage tube to break away from the condition of second connecting pipe because of not hard up appearing in the second connecting pipe.

Drawings

FIG. 1 is a schematic structural view of a fixing device according to an embodiment of the present application;

2-3 are views showing the movement state of the adjusting part in the guide groove in the embodiment of the application;

FIG. 4 is a schematic structural view of the toggle member in the position limiting in the embodiment of the present application;

FIG. 5 is a schematic structural view of the toggle member in the retracted position according to the embodiment of the present application;

fig. 6 is a schematic structural view of a position adjustment groove in an embodiment of the present application.

Reference numerals:

10. a bonding member; 20. a first connecting pipe; 30. a second connecting pipe; 40. an adjustment member;

50. a sliding assembly; 21. a guide groove 21; 41. connecting columns; 42. a toggle piece;

43. an elastic member; 211. a first groove section; 212. a second groove section; 213. a limiting plate;

411. a position adjusting groove; 421. a limiting bulge; 422. an accommodating chamber; 423. a limiting block;

4111. a first wall segment; 4112. a second wall segment; 4113. a third wall segment;

4114. a fourth wall segment; 4115. a fifth wall segment; 4116. a sixth wall segment;

4117. a seventh wall segment; 4118. an eighth wall segment.

Detailed Description

The application provides a fixing device and thoracic drainage ware, through setting up first connecting pipe 20 and second connecting pipe 30, drainage tube fixed mounting is in second connecting pipe 30, second connecting pipe 30 activity sets up in first connecting pipe 20 and second connecting pipe 30 sets up along the axially movable of first connecting pipe 20, and adjustable drainage tube gets into the length in human thorax, helps the drainage to the hydrops of the different degree of depth in the human thorax, has improved thoracic drainage ware's drainage effect.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments.

In an exemplary embodiment of the present disclosure, a thoracic drainage tube is provided, and the following detailed description is made of the respective components of the present embodiment:

in this embodiment of the present application:

as shown in fig. 1, an embodiment of the present application provides a fixing device, including:

two bonding pieces 10, wherein the two bonding pieces 10 are arranged oppositely;

a first connection pipe 20, the first connection pipe 20 being located between the two adhesive members 10, and both of the two adhesive members 10 being connected to the first connection pipe 20;

and a second connection pipe 30, the second connection pipe 30 being movably disposed in the first connection pipe 20, and the second connection pipe 30 being movably disposed along an axial direction of the first connection pipe 20.

In this embodiment, the adhesive member 10 is used to fixedly attach the fixing device to the skin of a human body. The adhesive member 10 may preferably be an adhesive tape. Two adhesive members 10 are disposed at both sides of the first connection pipe 20 and are connected to the first connection pipe 20, thereby increasing the connection stability of the first connection pipe 20. The first connecting pipe 20 and the second connecting pipe 30 are both hollow structures, and the second connecting pipe 30 is movably disposed in the second connecting pipe 30. The draft tube may be fixedly installed in the second connection tube 30. The second connecting pipe 30 is movably arranged along the axial direction of the first connecting pipe 20, so that the length of the drainage tube entering the chest cavity of the human body can be adjusted, drainage of effusion at different depths in the chest cavity of the human body is facilitated, and the drainage effect of the chest drainage device is improved.

In some embodiments, a sliding assembly 50 is connected between the second connection pipe 30 and the first connection pipe 20, a sliding direction of the sliding assembly 50 is an axial direction of the first connection pipe 20, and the second connection pipe 30 is slidably disposed in the first connection pipe 20 through the sliding assembly 50.

In the present embodiment, the sliding assembly 50 includes a sliding groove and a sliding block which are slidably engaged, one of the sliding groove and the sliding block is disposed on the inner side wall of the first connecting pipe 20, and the other is disposed on the outer side wall of the second connecting pipe 30. The second connection tube 30 is axially moved in the first connection tube 20 by sliding fit of the sliding groove and the sliding block, thereby achieving the purpose of adjusting the length of the drainage tube entering the thoracic cavity of the human body.

In some embodiments, two sliding assemblies 50 are connected between second connection pipe 30 and first connection pipe 20, and two sliding assemblies 50 are disposed opposite to each other, so that the accuracy and stability of second connection pipe 30 moving in first connection pipe 20 can be improved.

As shown in fig. 2-3, in some embodiments, the sidewall of the first connecting tube 20 is provided with a guide groove 21 disposed along the axial direction, the guide groove 21 penetrates through the sidewall of the first connecting tube 20, the outer side surface of the second connecting tube 30 is provided with an adjusting member 40, and the adjusting member 40 penetrates through the guide groove 21 and is slidably engaged with the guide groove 21 in a fixed position.

In the present embodiment, the guide groove 21 is located on the sidewall of the first connection pipe 20 and provided through the sidewall of the first connection pipe 20. The adjusting member 40 is disposed through the guiding groove 21 and is in sliding fit with the guiding groove 21. Wherein, when the adjusting member 40 slides in the guide slot 21, the length of the drainage tube entering into the thoracic cavity of the human body is being adjusted; when the adjusting member 40 is fixed in position in the guide groove 21, the length of the drainage tube in the thoracic cavity of the human body is not adjustable at this time. The portion of the adjusting member 40 extending out of the guide slot 21 allows the operator to toggle the position of the adjusting member 40 in the guide slot 21.

As shown in fig. 4 to 5, in some embodiments, the guide groove 21 is a stepped groove, the stepped groove includes a first groove section 211 and a second groove section 212 connected to each other, a groove width of the second groove section 212 is greater than a groove width of the first groove section 211, the first groove section 211 is located on a side of the second groove section 212 away from the second connection pipe 30, the second groove section 212 includes two first sidewalls along an axial direction of the first connection pipe 20, each of the two first sidewalls has a position limiting plate 213 at an end close to the second connection pipe 30, and the two position limiting plates 213 have a plurality of position limiting grooves symmetrically arranged along the axial direction of the first connection pipe 20;

the adjusting part 40 includes a connecting column 41 arranged on the outer side surface of the second connecting pipe 30 and a toggle part 42 movably sleeved on the connecting column 41, the toggle part 42 includes a first end part located in the second groove section 212, the first end part is respectively provided with a limit protrusion 421 extending and arranged along the groove width direction on two sides along the groove width direction of the second groove section 212, the toggle part 42 has a limit position and an avoidance position, the toggle part 42 is in limit cooperation with the limit groove in the limit position, the toggle part 42 is in separate arrangement with the limit groove in the avoidance position, and the toggle part 42 is movably arranged along the axial direction of the connecting column 41 to move between the limit position and the avoidance position.

In the present embodiment, the guide groove 21 includes a first groove section 211 and a second groove section 212 sequentially arranged in depth. The first channel section 211 is connected to the second channel section 212. Wherein the groove width of the second groove segment 212 is larger than the groove width of the first groove segment 211. One end of the first sidewall of the second groove section 212, which is close to the second connection pipe 30, is provided with a limiting plate 213, and the two limiting plates 213 are arranged at an interval. The two limit plates 213 are symmetrically provided with a plurality of limit grooves along the axial direction of the first connecting pipe 20, and the limit grooves can be in limit fit with the limit protrusions 421 on the toggle member 42 to realize the position fixing of the adjusting member 40 in the guide groove 21. One end of the toggle member 42 extends into the second slot segment 212 and has a first end extending into the second slot segment 212. The first end portion is provided with a limiting protrusion 421 extending along the groove width direction at two sides of the second groove section 212 in the groove width direction, and the limiting protrusion 421 is in limiting fit with the bottom surface of the second groove section 212 to prevent the toggle member 42 from being disengaged from the guide groove 21. The toggle piece 42 has a limiting position and an avoiding position, the limiting protrusion 421 is in limiting fit with a certain limiting groove when the toggle piece 42 is in the limiting position, and the adjusting piece 40 can slide in the guide groove 21; the toggle member 42 is disposed with the limiting protrusion 421 separated from the limiting groove when in the avoiding position, that is, the limiting protrusion 421 is located above the limiting groove, and at this time, the adjusting member 40 is in a fixed position state in the guide groove 21. The toggle member 42 is movably disposed in a position in the axial direction of the connection column 41 to move between a limit position and an escape position.

In this embodiment, the worker can move up and down by adjusting the toggle member 42 to perform the unlocking and unlocking process on the adjusting member 40, thereby adjusting and fixing the position of the adjusting member 40 in the guide groove 21.

In some embodiments, the toggle member 42 is in a limited rotation engagement with the first slot segment 211 to prevent the toggle member 42 from rotating within the guide slot 21.

As shown in fig. 6, in some embodiments, the connecting column 41 is cylindrical, the connecting column 41 is rotatably disposed on the second connecting tube 30, an annular position adjusting groove 411 is recessed on an outer peripheral surface of the connecting column 41, the position adjusting groove 411 includes a second side wall and a third side wall that are disposed up and down, the second side wall and the second side wall are both substantially W-shaped, the second side wall includes a first wall section 4111, a second wall section 4112, a third wall section 4113 and a fourth wall section 4114 that are sequentially connected end to end, the third side wall includes a fifth wall section 4115, a sixth wall section 4116, a seventh wall section 4117 and an eighth wall section 4118 that are sequentially connected end to end, an interface between the first wall section 4111 and the second wall section 4112 is located on a right side of an interface between the fifth wall section 4115 and the sixth wall section 4116, an interface between the second wall section 4112 and the third wall section 4113 is located on a left side of an interface between the sixth wall section 4116 and the seventh wall section 4117, an interface between the third wall section 4113 and the fourth wall section 4114 is located on a right side of the seventh wall section 4118 of the seventh wall, the intersection of the fourth wall section 4114 and the first wall section 4111 is located to the left of the intersection of the eighth wall section 4118 and the fifth wall section 4115, and the intersection of the second wall section 4112 and the third wall section 4113 is located lower than the intersection of the fourth wall section 4114 and the first wall section 4111;

the toggle member 42 comprises an accommodating cavity 422 for accommodating a part of the connecting column 41, a limiting block 423 is arranged on the side wall of the accommodating cavity 422, the limiting block 423 is in sliding fit with the position adjusting groove 411, the adjusting member 40 further comprises an elastic member 43 located in the accommodating cavity 422, and two ends of the elastic member 43 are respectively connected with the connecting column 41 and the inner side wall of the accommodating cavity 422 so as to provide elastic force for the toggle member 42 to move towards the avoiding position.

In the present embodiment, the toggle member 42 is positionally movably provided in the axial direction of the connecting column 41 to move between the limit position and the escape position by the cooperation of the limit block 423, the position adjusting groove 411, and the elastic member 43. Wherein, the concrete structure of position control groove 411 is: the second side wall and the second side wall are both in a W shape, namely the first side wall and the second side wall are both in a broken line shape and have 4 end points. The second side wall comprises a first wall section 4111, a second wall section 4112, a third wall section 4113 and a fourth wall section 4114 connected end to end in sequence, the third side wall comprises a fifth wall section 4115, a sixth wall section 4116, a seventh wall section 4117 and an eighth wall section 4118 connected end to end in sequence, the intersection of the first wall section 4111 and the second wall section 4112 is located to the right of the intersection of the fifth wall section 4115 and the sixth wall section 4116, the intersection of the second wall section 4112 and the third wall section 4113 is located to the left of the intersection of the sixth wall section 4116 and the seventh wall section 4117, the intersection of the third wall section 4113 and the fourth wall section 4114 is located to the right of the intersection of the seventh wall section 4117 and the eighth wall section 4118, the intersection of the fourth wall section 4114 and the first wall section 4111 is located to the left of the intersection of the eighth wall section 4118 and the fifth wall section 4115, and the intersection of the second wall section 4112 and the third wall section 4113 is disposed lower than the intersection of the fourth wall section 4114 and the first wall section 4111. Wherein, the chamber 422 that holds of stirring piece 42 holds the one end that spliced pole 41 kept away from second connecting pipe 30, stopper 423 and position adjustment slot 411 sliding fit in stirring piece 42, the one end that second connecting pipe 30 was kept away from to spliced pole 41 and the top that holds chamber 422 between be equipped with elastic component 43, and the both ends of elastic component 43 are connected with spliced pole 41 and the top that holds chamber 422 respectively in order to provide the elasticity that moves to dodging the position to stirring piece 42. During the movement of the toggle member 42 between the avoidance position and the limit position, the limit block 423 drives the connection column 41 to rotate.

The matching process of the limiting block 423, the position adjusting groove 411 and the elastic piece 43 is specifically as follows:

the toggle member 42 is normally in the avoiding position, the limit block 423 is abutted to the intersection portion between the fourth wall section 4114 and the first wall section 4111 under the driving of the elastic member 43, one end of the toggle member 42 is exposed out of the guide groove 21, and the worker pushes the toggle member 42 to make the first connecting pipe 20 and the second connecting pipe 30 move relatively in the axial direction. After moving to the designated position, the toggle member 42 is located at the limit position by pressing the toggle member 42. During the pressing of the toggle member 42, the elastic member 43 is compressed, and the limit block 423 moves from the intersection of the fourth wall section 4114 and the first wall section 4111 downward onto the eighth wall section 4118 and slides down along the eighth wall section 4118 to the intersection of the eighth wall section 4118 and the seventh wall section 4117, at which point the limit block 423 cannot move downward. When the limiting block 423 cannot move downwards continuously, the worker can release the pressing force on the toggle member 42, the toggle member 42 moves upwards to the third wall section 4113 and moves along the third wall section 4113 to the intersection of the second wall section 4112 and the third wall section 4113 under the driving of the elastic member 43, at this time, the limiting block 423 cannot move upwards continuously, and the toggle member 42 is in the limiting position (that is, the limiting protrusion 421 is in the state of being inserted into the corresponding limiting groove, and the adjusting member 40 is in the fixed position in the guide groove 21). When adjusting the position of the drainage tube that is fixed, the operator can press the toggle member 42 again, and the stop block 423 moves down to the sixth wall section 4116 and moves along the sixth wall section 4116 to the intersection of the fifth wall section 4115 and the sixth wall section 4116, at which time the stop block 423 cannot move down further. When the limiting block 423 cannot move downwards continuously, the worker can release the pressing force on the toggle member 42, the toggle member 42 moves upwards to the first wall section 4111 and moves along the first wall section 4111 to the intersection of the first wall section 4111 and the fourth wall section 4114 under the driving of the elastic member 43, at this time, the limiting block 423 cannot move upwards continuously, and the toggle member 42 is in the avoiding position (i.e., the limiting protrusion 421 is away from the limiting groove and is located above the limiting groove, and the adjusting member 40 is in the movable state in the guide groove 21). Since the interface between the second wall section 4112 and the third wall section 4113 is lower than the interface between the fourth wall section 4114 and the first wall section 4111, the height of the toggle member 42 in the limit position is lower than that in the avoidance position.

In the present embodiment, the moving state of the adjusting member 40 in the guide groove 21 can be realized by pressing the toggle member 42 downward, and the operation is simple and convenient.

In some embodiments, the resilient member 43 is a spring or a resilient post. Wherein, the elastic column can be a rubber column and the like.

In some embodiments, the adhesive 10 comprises a fan-shaped tape that is attached to the first connecting tube 20.

In this embodiment, the fan-shaped small diameter end of the adhesive tape is connected to the first connecting tube 20. Wherein, the outer side wall of the first connecting pipe 20 can extend out of a connecting plate, and the fan-shaped small diameter end of the adhesive tape is fixedly connected with the connecting plate through hot pressing.

In some embodiments of the present application, the second connection pipe 30 includes:

the first pipe section is movably connected with the first connecting pipe 20, a plurality of elastic pieces extend axially on the outer end face of the first pipe section, the elastic pieces are arranged at intervals along the circumferential direction, and external threads are arranged on the outer circumferential surfaces of the elastic pieces;

and the second pipe section is conical, and the inner side wall of the second pipe section is provided with an internal thread in threaded connection with the external thread.

In the present embodiment, the second connection pipe 30 includes a first pipe section and a second pipe section which are coaxially disposed, and the first connection pipe 20 is connected to the first pipe section by the sliding assembly 50. A plurality of elastic pieces are arranged on the outer end face of the first pipe section in an axially extending mode, the elastic pieces are arranged at intervals along the circumferential direction, and external threads are arranged on the outer circumferential faces of the elastic pieces. The second pipe section is conical, an inner thread in threaded connection with the external thread is arranged on the inner side wall of the second pipe section, and the large-diameter end face of the second pipe section is arranged towards the elastic sheet. When the drainage tube is used, the drainage tube can penetrate through the first tube section and the second tube section, then one end of the elastic sheet on the first tube section is inserted into the second tube section, and then the elastic sheets are driven to bend towards the center through rotation, so that the purpose of clamping the drainage tube is achieved. Wherein, the clamping force to the drainage tube is adjusted through the screwing depth between the first tube section and the second tube section.

The application also provides a thoracic drainage device, which comprises a drainage tube and a fixing device, wherein the drainage tube is fixedly arranged in the second connecting tube 30.

In some embodiments of the present application, the drainage tube includes a tube body and a protective layer disposed on the tube body, the protective layer covering the tube body. The protective layer is used for protecting the drainage tube so as to prevent the flow tube from being damaged or polluted. The protective layer may be formed on the tube body through a hot pressing process. The protective layer includes first protection section and second protection section, and first protection section and second protection section set up along the axial of body in order. Wherein the fixing means are generally movable over the first protection segment. When the first protection section is used, the length of the first protection section entering a human body is about 6-8 cm approximately. The first protection section can be made of epoxy resin, polyester resin and phenolic resin. The second protection segment can be made of rubber and the like. The first protection section can protect the drainage tube entering the body, and the elasticity of the first protection section is facilitated, so that the first protection section can be tightly abutted with the elastic sheet on the first tube section under the condition of ensuring that the drainage diameter of the drainage tube is not reduced. The second protection section can protect the drainage tube which does not enter the body, and the occurrence of the damage and pollution of the drainage tube is avoided.

Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, one skilled in the art should clearly recognize the present application.

It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the specific structures, shapes, or configurations shown in the examples.

It is also noted that the illustrations herein may provide examples of parameters that include particular values, but that these parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error tolerances or design constraints. Directional phrases used in the embodiments, such as those referring to "upper", "lower", "front", "rear", "left", "right", etc., refer only to the orientation of the attached drawings and are not intended to limit the scope of the present application. In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

The above-mentioned embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A fixation device, comprising:

the two bonding pieces are arranged oppositely;

a first connecting pipe located between the two bonding members, both of the two bonding members being connected to the first connecting pipe;

the second connecting pipe is movably arranged in the first connecting pipe and is movably arranged along the axial direction of the first connecting pipe;

a sliding assembly is connected between the second connecting pipe and the first connecting pipe, the sliding direction of the sliding assembly is the axial direction of the first connecting pipe, and the second connecting pipe is arranged in the first connecting pipe in a sliding manner through the sliding assembly; the side wall of the first connecting pipe is provided with a guide groove arranged along the axial direction, the guide groove penetrates through the side wall of the first connecting pipe, the outer side surface of the second connecting pipe is provided with an adjusting piece, and the adjusting piece penetrates through the guide groove and is in sliding fit with the guide groove in a fixed position; the guide groove is a stepped groove, the stepped groove comprises a first groove section and a second groove section which are connected, the groove width of the second groove section is larger than that of the first groove section, the first groove section is positioned on one side, away from the second connecting pipe, of the second groove section, the second groove section comprises two first side walls in the axial direction of the first connecting pipe, limiting plates are arranged at one ends, close to the second connecting pipe, of the two first side walls, and a plurality of limiting grooves are symmetrically formed in the two limiting plates in the axial direction of the first connecting pipe; the adjusting part comprises a connecting column and a stirring part, the connecting column is arranged on the outer side surface of the second connecting pipe, the stirring part is sleeved on the connecting column, the stirring part comprises a first end part located in the second groove section, two sides of the first end part in the groove width direction of the second groove section are respectively provided with a limiting protrusion extending and arranged in the groove width direction, the stirring part is provided with a limiting position and an avoiding position, the stirring part is in limiting position, the limiting protrusion is in limiting fit with the limiting groove, the stirring part is in avoiding position, the limiting protrusion is separated from the limiting groove, and the stirring part is movably arranged in the axial direction of the connecting column so as to move between the limiting position and the avoiding position.

2. The fastening device of claim 1, wherein the toggle member is in limited rotational engagement with the first slot segment.

3. The fixing device according to claim 1, wherein the connecting column is cylindrical, the connecting column is rotatably disposed on the second connecting tube, an annular position adjusting groove is concavely disposed on an outer peripheral surface of the connecting column, the position adjusting groove includes a second side wall and a third side wall which are vertically disposed, the second side wall and the third side wall are both substantially W-shaped, the second side wall includes a first wall section, a second wall section, a third wall section and a fourth wall section which are sequentially connected end to end, the third side wall includes a fifth wall section, a sixth wall section, a seventh wall section and an eighth wall section which are sequentially connected end to end, an interface of the first wall section and the second wall section is located on a right side of an interface of the fifth wall section and the sixth wall section, an interface of the second wall section and the third wall section is located on a left side of an interface of the sixth wall section and the seventh wall section, the interface of the third and fourth wall segments is located to the right of the interface of the seventh and eighth wall segments, the interface of the fourth and first wall segments is located to the left of the interface of the eighth and fifth wall segments, and the interface of the second and third wall segments is disposed lower than the interface of the fourth and first wall segments;

the poking piece comprises a containing cavity used for containing part of the connecting column, a limiting block is arranged on the side wall of the containing cavity, the limiting block is in sliding fit with the position adjusting groove, the adjusting piece further comprises an elastic piece located in the containing cavity, and two ends of the elastic piece are respectively connected with the connecting column and the inner side wall of the containing cavity so as to provide elastic force for the poking piece to move in the avoiding position.

4. A fixation device as claimed in claim 3, wherein the resilient member is a spring or a resilient post.

5. A fastening device according to claim 1, wherein the adhesive comprises a fan-shaped tape, the tape being connected to the first connecting tube.

6. The fixture according to claim 1, wherein the second connecting tube comprises:

the first pipe section is movably connected with the first connecting pipe, a plurality of elastic pieces extend axially on the outer end face of the first pipe section, the elastic pieces are arranged at intervals along the circumferential direction, and external threads are arranged on the outer circumferential surfaces of the elastic pieces;

and the second pipe section is conical, and the inner side wall of the second pipe section is provided with an internal thread in threaded connection with the external thread.

7. A thoracic drainage device comprising a drainage tube and the anchoring device of any of claims 1 to 6, wherein the drainage tube is fixedly mounted in the second connecting tube.

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