TWI761901B - Piercing drainage appliance for wound treatment in post-surgery - Google Patents

Abstract

The present invention discloses a piercing drainage appliance for wound treatment in post-surgery. The piercing drainage appliance includes a clip tube having an inclined portion and a straight portion, an expansible drainage tube comprises a flexible tube and a position-adjustment device, of which the flexible tube is moved along a specific axis from a retaining position in an idle state while the position-adjustment device is being forced, and a piercing device is movable relative to the expansible drainage tube, wherein whole of the piercing device is being at inside of the inclined portion of the clip tube in the idle state, and the whole or part of the piercing device is moved to outside of the inclined portion of the clip tube while the position-adjustment device is being forced.

Description

Puncture and drainage device for postoperative wounds

The invention belongs to the technical field of medical appliances, in particular to a puncture and drainage device used for removing fluid from wounds after medical operations.

The post-operative wound drainage market in hospitals is expected to reach US$2.18 billion from US$1.78 billion in 2016, with a compound annual growth rate of 3.7%. The main audiences of wound drainage in the medical consumables market are general surgery, cardiology and thoracic surgery, orthopedics and In obstetrics and gynecology, due to the increase in the global elderly population and the increase in the number of surgical operations, precise reduction of the risk of bacterial infection and effective sealing of wounds are the main research and improvement targets. It is expected that surgical drainage manufacturers in North America will continue to dominate the market after 2017. According to the top manufacturers, B.Braun (Germany), Cardinal Health (US), ConvaTec (UK), CR Bard (US) ), Redax (Italy), Ethicon (US), Stryker (US), Romsons (India), Medtronic (Ireland), Medline Industries (US), Cook Medical (US), Poly Medicure (India), Zimmer Biomet (US) , Global Medikit (India) and Degania Silicone (Israel), while the Asian market is expected to grow at the highest CAGR, the Asian market’s increasing demand for wound care may be due to Rapidly increasing population density and aging in China and India are driving demand for wound drainage across the Asian market.

In clinical Chinese medicine, drainage tubes are widely used in surgery; for example, trauma orthopedics, microsurgery, joint surgery, spine surgery, bone disease surgery and other departments, artificial joint replacement in orthopaedic surgery, various types of fractures, osteomyelitis, suppuration Arthritis and other surgical operations such as thoracic cavity, abdominal cavity and other surgical operations often require lavage treatment, especially after the operation, the soft tissue needs to be washed and drained to suck out the waste fluid. The drainage tube can be used for wounds, chest cavity, brain cavity , gastrointestinal and biliary tract drainage. During the operation, a local cavity will be formed for the operation. When drainage is required after the operation, the prior art is to connect a puncture needle to the front end of the drainage tube (the end provided with the drainage hole), and the human skin has a puncture portion near the wound. Insert the puncture needle from the outside through the puncture part to pull the front end of the drainage tube to the inside of the cavity, then pull out the puncture needle from the cavity, and then fix the drainage tube for drainage. Pierce from the inside out. Fixing the drainage tube near the cavity for drainage can significantly reduce the probability of infection at the postoperative wound. Restricted by the existing drainage tube structure and the inertial thinking of those skilled in the art, when the drainage tube is inserted into the cavity, the front end of the drainage tube can only be punctured from the outside of the human body to the cavity itself near the wound.

However, the existing structure and method for puncturing from the outside to the inside of the puncture and drainage device have the following defects: (1) it is difficult to control the puncture depth of the puncture needle during the puncture process, and it is very easy to cause secondary damage to the wound; (2) the puncture needle is When the puncture needle is pulled out from the cavity, the force point of the puncture needle is relatively small, making it difficult to operate, and pulling out the puncture needle may damage the structure of the front end of the drainage tube; (3) it is too dangerous to pierce the sharp object from the puncture needle; (4) puncture When the needle-connecting structure penetrates into and out of the human body, the connecting needle will be hindered by the organs When moving forward, the shape is fixed and cannot be deformed arbitrarily, so that the process of connecting the drainage tube is suffocated and difficult to do.

In view of this, the inventors have come up with the present invention to overcome the above-mentioned problems after careful experiments and researches, and the spirit of perseverance in view of the deficiencies in the prior art.

The purpose of the present invention is to propose a puncture and drainage device for postoperative wounds. Through the overall structure design, the puncture needle can be automatically recovered, the single-lumen and multi-lumen drainage channel structure, and the hand-held contact with rough surfaces, etc. The special design is effective. Improve the inconvenience of conventional technology and many other problems.

In order to achieve one object of the present invention, the present invention proposes a puncture and drainage device for postoperative wounds, which includes: a puncture and drainage device for postoperative wounds, which includes: an outer holding sleeve, a retractable drainage tube and a puncture needle tube ; The outer sleeve member is a hollow cylindrical steel tube body, the outer sleeve member includes an inclined pipe section and a straight pipe section connected thereto, and an inclination angle is maintained between the inclined pipe section and the straight pipe section; telescopic The drainage tube includes a flexible hollow tube body and a telescopic and mobilizing member connected thereto, the flexible hollow tube body is arranged in the outer sleeve member and is located in a holding position, and the telescopic and mobilizing member is used for external application. The force causes the flexible hollow tube body to be displaced along an axial direction to leave the holding position, and the hollow interior of the flexible hollow tube body is a first drainage chamber and the flexible hollow tube body according to its own It is located at the inner position of the outer sleeve to be shaped; the puncture needle tube is in the shape of a hollow circular tube and is connected to the flexible hollow tube body to form a linkage, the puncture needle tube comprises a puncture section and is formed between the puncture section. a sharp segment at the top and a bottom end from the piercing segment An extended necked section, the hollow interior of the piercing section is a second drainage chamber, the sharp section and the necked section are respectively formed with openings at one end away from the piercing section and communicated with the second drainage chamber The first drainage chamber and the second drainage chamber together form a drainage channel; wherein the inclination angle is between 10 and 45 degrees, and the diameter of the puncture needle is smaller than the diameter of the outer sleeve. The diameter of the tube, when the flexible hollow tube body is in the holding position, the entirety of the puncture needle tube is retracted inside the inclined tube section of the outer holding sleeve member, and when the flexible hollow tube body leaves the When the position is maintained, the whole or part of the puncture needle tube protrudes out of the outer holding sleeve member.

In order to achieve another object of the present invention, the present invention proposes a puncture and drainage device for postoperative wounds, which comprises: an outer holding sleeve member, a retractable drainage tube and a puncture needle tube; the outer holding sleeve member is a hollow cylindrical steel A flexible pipe body, the outer sleeve member includes an inclined pipe section and a straight pipe section connected thereto, and an inclined angle is maintained between the inclined pipe section and the straight pipe section; the retractable drainage pipe includes a flexible hollow pipe body and its straight pipe section. A telescopic and mobilizing component connected, the flexible hollow tube body is disposed in the outer sleeve member and is located in a holding position, and the telescopic and mobilizing component is used to force the flexible hollow tube body along a Axial displacement is generated to leave the holding position, and the hollow interior of the flexible hollow tube body is a first drainage chamber, and the flexible hollow tube body is shaped according to its position inside the outer sleeve member The puncture needle tube is in the shape of a hollow circular tube and is connected to the flexible hollow tube body to form a linkage, the puncture needle tube comprises a piercing section, a sharp section formed on the top of the piercing section and a section from the piercing section. A constricted section extending from the bottom end, the hollow interior of the piercing section is a second drainage chamber, the sharp section and the constricted section are respectively formed with openings at one end away from the piercing section and communicated with the second A drainage chamber, and the first drainage chamber and the second drainage chamber together form a drainage channel; wherein the inclination angle is between 10 and 45 degrees, and the diameter of the puncture needle is smaller than the outer sleeve The pipe diameter of the pipe fitting, when the flexible hollow pipe body is in the holding position, The whole of the puncture needle tube protrudes out of the outer holding sleeve member, and when the flexible hollow tube body leaves the holding position, the whole or part of the puncture needle tube is retracted from the outer holding sleeve member the inside of the inclination pipe section.

According to an embodiment of the present invention, the manner in which the telescopic and mobilizing member is used for externally applying force includes any one of the following: the direction of applying force is the axial direction of the longitudinal direction of the outer sleeve member, and a pushing method is used to make a The elastic element is deformed, so that the flexible hollow tube body is displaced; the direction of force is the axial direction perpendicular to the longitudinal direction of the outer sleeve member, and an elastic element is deformed by pressing, so that the The flexible hollow tube body is displaced; or the direction of force is to take the axial direction parallel to the longitudinal direction of the outer sleeve member as the rotation axis, and the screw teeth meshing teeth position is changed in a rotational manner, so that the flexible hollow tube is body is displaced.

According to an embodiment of the present invention, when the telescopic and mobilizing member is used for pushing through external force, a groove is defined in the straight pipe section of the outer sleeve member, and the groove communicates with the outer sleeve member. Inside the hollow, the telescopic and mobilizing member includes the elastic element, a slider plate and an extending outer tube; wherein the slider plate includes an arc-shaped plate and a joint protruding from one side surface of the arc-shaped plate , the joint piece passes through the groove to fasten the flexible hollow pipe body, the arc-shaped plate covers the groove; At one end of the puncture needle tube, a hollow cylinder protrudes from the surface of one end of the extending outer tube member and is located in the hollow interior of the outer tube member; the elastic element is a tension spring and is sleeved on the hollow cylinder to form a limit. The flexible hollow tube body is provided with a hook ring on the outer periphery of one end away from the puncture needle tube, and the elastic element is hooked on the hook ring. The elastic element is stretched and deformed in a manner so as to make the flexible hollow tube The body is displaced to leave the holding position, and the displacement distance of the flexible hollow tube body is determined according to the length of the groove.

According to an embodiment of the present invention, when the telescopic and mobilizing member is used for pushing through external force, a groove is defined in the straight pipe section of the outer sleeve member, and the groove communicates with the outer sleeve member. Inside the hollow, the telescopic and mobilizing member includes the elastic element, a slider plate and an extending outer tube; wherein the slider plate includes an arc-shaped plate and a joint protruding from one side surface of the arc-shaped plate , the joint piece passes through the groove to fasten the flexible hollow pipe body, the arc-shaped plate covers the groove; One end of the puncture needle tube, a hollow cylinder protrudes from the surface of one end of the extending outer tube member and is located in the hollow interior of the outer tube member; the elastic element is a compression spring and is sleeved on the hollow cylinder to form a limit Fixed, the outer periphery of one end of the flexible hollow tube body away from the puncture needle tube is provided with a ring sleeve and the elastic element abuts the ring sleeve. The elastic element is compressed and deformed, so that the flexible hollow tube body is displaced to leave the holding position, and the displacement distance of the flexible hollow tube body is determined according to the length of the groove.

According to an embodiment of the present invention, a surface of the arc-shaped plate member away from the joint member forms a rough surface with an anti-slip structure, and the anti-slip structure is configured with a plurality of parallel fine grooves on the surface. The rough surface, the rough surface treated by sandblasting, or the rough surface with a plurality of fine bumps evenly distributed.

According to an embodiment of the present invention, the length of the groove is greater than or equal to the sum of the overall lengths of the piercing section and the sharp section in the puncture needle tube.

According to an embodiment of the present invention, the elastic constant of the tension spring is between 0.06-1.0 N/cm, the initial tension is between 0.5-3.0 N, and the free length is less than the overall length of the puncture needle tube .

According to an embodiment of the present invention, the elastic constant of the compression spring is between 0.2 and 3.0 N/cm, and the free length is greater than or equal to the sum of the overall lengths of the piercing section and the sharp section in the puncture needle tube.

According to an embodiment of the present invention, the first drainage chamber inside the flexible hollow tube body is a single-chamber sealing area in the section of the inclined tube section, and the first drainage chamber inside the flexible hollow tube body is a single-chamber sealing area. The drainage chamber is a multi-chamber sealing area in the section range of the straight pipe section, the tube wall of the single-chamber sealing area is closed and the interior is hollow to form a drainage channel, and the tube wall of the multi-chamber sealing area is closed and the interior is supported by The bone is divided into at least three drainage channels.

According to an embodiment of the present invention, a rough surface with an anti-slip structure is formed in a partial area of the outer peripheral surface between one end of the straight pipe section away from the end of the inclined pipe section and the groove, and the anti-slip structure is configured for the surface A rough surface with multiple parallel fine grooves, a rough surface treated by sandblasting, or a rough surface with a plurality of fine bumps evenly distributed.

10: Outer holding sleeve

11: Inclined pipe section

12: Straight pipe section

1200: Anti-slip structure

13: Groove

20: retractable drainage tube

21: Flexible hollow body

210: First Drainage Chamber

22: Telescopic transfer parts

2220: Anti-slip structure

221: Elastic element

222: Slider Board

222a: Arc-shaped plate

222b: Joints

223:Extended Outer Holding Tube

2230: Hollow Cylinder

30: Puncture needle

31: Piercing Segment

32: Sharp segment

320: Second Drainage Chamber

33: Necked segment

θ1: Inclination angle

Z1: Single cavity sealing zone

Z2: Multi-cavity sealing zone

FIG. 1 is a schematic three-dimensional structural diagram of a first embodiment of the puncture and drain device of the present invention.

FIG. 2 is a schematic diagram illustrating the exploded structure of the puncture and drainage device of the present invention.

FIG. 3 is a schematic view of a cross-sectional structure of one side of the puncture and drainage device of the present invention.

FIG. 4 is a schematic three-dimensional structure diagram of a second embodiment of the puncture and drain device of the present invention.

The detailed description and technical content of the present invention are described below in conjunction with the drawings. However, the accompanying drawings are only for reference and description, and are not intended to limit the present invention. Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and arrangements made within the spirit and scope of the present invention. In order to give the public a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The detailed description and technical content of the present invention are described below in conjunction with the drawings. However, the accompanying drawings are only for reference and description, and are not intended to limit the present invention. The aforementioned and other technical contents, features and Efficacy, in the following detailed description of each embodiment with reference to the drawings, will be clearly presented, the directional terms mentioned in the following embodiments, such as: "up", "down", "left", "right", "Front", "Rear", etc., only refer to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate rather than limit the present invention; furthermore, in the following embodiments, the same or similar elements will be designated by the same or similar reference numerals.

First, various problems based on conventional techniques. For a puncture and drainage device for postoperative wounds proposed by the present invention, please refer to FIG. 1 to FIG. 3 of the present invention, which are schematic diagrams of the three-dimensional structure, decomposed structure and cross-sectional structure of the puncture and drainage device of the present invention. The puncture and drain device of the present invention mainly has two implementations, and the detailed technical features of the two implementations will be sequentially described with reference to the drawings of the present invention.

Please refer to the first embodiment shown in FIG. 1

The puncture and drainage device comprises: an outer holding sleeve member (10), a retractable drainage tube (20) and a puncture needle tube (30); The pipe fitting (10) is a straight pipe section (12) comprising an inclination angle pipe section (11) and its connection, and an inclination angle (θ1) is maintained between the inclination angle pipe section (11) and the straight pipe section (12); The drainage tube (20) comprises a flexible hollow tube body (21) and a telescopic and mobilizing part (22) connected thereto, the flexible hollow tube body (21) is arranged in the outer sleeve member (10) and is located in a holding position, the telescopic and mobilizing member (22) is used for exercising external force to make the flexible hollow tube body (21) move along an axial direction to leave the holding position, and the flexible hollow tube The hollow interior of the body (21) is a first drainage chamber (210), and the flexible hollow tube body (21) is shaped according to its internal position in the outer sleeve member (10); the puncture needle tube (210) 30) is a hollow circular tube and is connected to the flexible hollow tube body (21) to form a linkage, the puncture needle tube (30) comprises a puncture section (31), and is formed on the top of the puncture section (31) A sharp section (32) and a neck section (33) extending from the bottom end of the piercing section (32), the hollow interior of the piercing section (32) is a second drainage chamber (320), The sharp section (31) and the neck section (33) are respectively formed with openings (not shown) at one end away from the piercing section (32) and communicate with the second drainage chamber (320), and the The first drainage chamber (210) and the second drainage chamber (320) together form a drainage channel (not shown in the figure).

In this embodiment, the diameter of the puncture needle tube (30) is smaller than the diameter of the outer holding sleeve member (10). When the flexible hollow tube body (21) is in the holding position, the puncture needle tube ( The entirety of 30) is retracted inside the inclined pipe section (11) of the outer sleeve member (10), while the system protrudes outside the outer sleeve member (10).

According to an embodiment of the present invention, wherein the telescopic and mobilizing member (22) is used for externally applying force to include any one of the following:

1. The direction of application of force is the axial direction of the longitudinal direction of the outer sleeve member (10), and an elastic element (221) is deformed by pushing, so that the flexible hollow tube body (21) is generated. displacement.

2. The direction of force is the axial direction perpendicular to the longitudinal direction of the outer sleeve member (10), and an elastic element (221) is deformed by pressing, so that the flexible hollow tube body (21) is deformed. produce displacement.

3. The direction of application of force is to take the axial direction parallel to the longitudinal direction of the outer sleeve member as the axis of rotation, to change the position of the threaded teeth in a rotational manner, thereby causing the flexible hollow tube body (21) to displace.

Based on the force application methods mentioned in the above points 1 to 3, the present invention will mainly describe the structural features of the puncture and drain device according to the present invention with respect to the force application method of the first point, but it is not limited by this. The force application methods of points 2 to 3 can also achieve the purpose of the technical means of the present invention, and also include the appeal of the purpose of the present invention; it is explained here that the drawings of the present invention and the following contents are only based on the first point above. The force-applying manner of the present invention is regarded as an expression of an embodiment of the present invention.

The force application method based on the first point above, that is, when the telescopic and mobilizing member (22) is used to apply external force in a push method, and the push direction is the direction toward the puncture needle tube (30); wherein A groove (13) is defined in the straight pipe section (12) of the outer sleeve member (10), and the groove (13) communicates with the hollow interior of the outer sleeve member (10). ) includes the elastic element (221), a slider plate (222) and an extending outer holding pipe (223); wherein the slider plate (222) includes an arc-shaped plate (222a) and is connected from the arc-shaped plate (222a) a joint (222b) protruding from one side surface, the joint (222b) passes through the groove (13) to fasten the flexible hollow tube (21), the arc-shaped plate (222b) 222a) is covered on the groove (13); the extended outer holding pipe member (223) is assembled to the end of the outer holding sleeve member (10) away from the puncture needle tube (30), and the extended outer holding pipe member ( A hollow cylinder (2230) protrudes from one end surface of 223) and is located in the hollow interior of the outer sleeve member (10).

As mentioned above, the elastic element (221) is a tension spring and is sleeved on the hollow cylinder (2230) to form a limit fixation, and the flexible hollow tube (21) is away from the puncture needle (30). ) is provided with a shackle (not shown in the figure) on the outer periphery of one end, and the elastic element (221) is used for hooking on the shackle To form a fixation, the telescopic and mobilizing member (22) exerts external force on the arc-shaped plate member (222a) to stretch and deform the elastic element (221) in a pushing manner, so as to make the flexible hollow tube body (21) Displacement is generated to leave the holding position, and when the flexible hollow tube body (21) leaves the holding position, the whole or part of the puncture needle tube (30) protrudes out of the outer holding sleeve member (10) , and the displacement distance of the flexible hollow pipe body (21) is determined according to the length of the groove (13).

According to an embodiment of the present invention, the elastic constant of the tension spring is between 0.06 and 1.0 Newton per cm; preferably, the elastic constant is between 0.1 and 0.5 Newton per cm. The initial tension is between 0.5 and 3.0 Newtons; preferably, the initial tension is between 0.8 and 2 Newtons. The free length is smaller than the overall length of the puncture needle tube (30). It is further explained that the selection of the extension spring mainly considers factors such as the convenience, comfort and safety of the user in operation. According to the analysis of the pushing force and a large number of experimental tests, the designed technical specification range of the tension spring is one of the key technical features of this case. Supplementary description, plus or minus 15% of the numerical value of the above-mentioned specification range of the extension spring is the numerical range allowed and covered by the present invention.

Please refer to the second embodiment of FIG. 4 again

The puncture and drainage device comprises: an outer holding sleeve member (10), a retractable drainage tube (20) and a puncture needle tube (30). The pipe fitting (10) comprises an inclined pipe section (11) and a straight pipe section (12) connected thereto, and an inclined angle is maintained between the inclined pipe section (11) and the straight pipe section (12); the retractable drainage pipe (20) ) comprises a flexible hollow pipe body (21) and the telescopic and mobilizing member (22) connected thereto, the flexible hollow pipe body (21) is arranged in the outer sleeve member (10) and is located in a holding Position; here, the holding position described in this embodiment is different from that of the first embodiment. The telescopic and mobilizing member (22) is used for exercising external force to cause the flexible hollow tube body (21) to be displaced along an axial direction to leave the holding position, and the flexible hollow tube body (21) is hollow The inside is a first drainage chamber (210), and the flexible hollow tube body (21) is shaped according to the inner position of the outer sleeve member (10); the puncture needle tube (30) is a The hollow circular tubular shape is connected to the flexible hollow tubular body (21) to form a linkage, the puncture needle tube (30) comprises the puncturing section (31) and the sharp section formed on the top of the puncturing section (31). (32) and the necked section (33) extending from the bottom end of the piercing section (32), the hollow interior of the piercing section (32) is the second drainage chamber (320), the sharp section ( 31) and the necked section (33) are respectively formed with an opening (not shown) at one end away from the piercing section (32) and communicate with the second drainage chamber (320), and the first drainage chamber The chamber (210) and the second drainage chamber (320) together constitute the drainage channel (not shown).

In this embodiment, the diameter of the puncture needle tube (30) is smaller than the diameter of the outer sleeve member. When the flexible hollow tube body (21) is in the holding position, the diameter of the puncture needle tube (30) is smaller than the diameter of the outer sleeve. The whole body protrudes out of the outer holding sleeve member (10), and when the flexible hollow tube body (21) leaves the holding position, the whole or part of the puncture needle tube (30) is retracted inwardly. The inside of the inclined pipe section (11) of the outer sleeve member (10).

According to an embodiment of the present invention, wherein the telescopic and mobilizing member (22) is used for externally applying force to include any one of the following:

4. The direction of application of force is the axial direction of the longitudinal direction of the outer sleeve member (10), and an elastic element (221) is deformed by pushing, so that the flexible hollow tube body (21) is deformed. displacement.

5. The direction of application of force is the axial direction perpendicular to the longitudinal direction of the outer sleeve member (10), and an elastic element (221) is deformed by pressing, so that the flexible hollow tube body (21) is deformed. produce displacement.

6. The direction of force is to take the axial direction parallel to the longitudinal direction of the outer sleeve member as the axis of rotation, and to change the position of the threaded teeth in a rotational manner, thereby causing the flexible hollow tube body (21) to displace.

Based on the force application methods mentioned in the above 4~6 points, the present invention mainly describes the structural features of the puncture and drain device according to the present invention with respect to the force application method in the fourth point, but is not limited by this. The force application method of 5 to 6 points can also achieve the purpose of the technical means of the present invention. It also includes the claims of the purpose of the present invention; it is explained here that the drawings of the present invention and the following contents are only the expression of the force application method of the above-mentioned point 4 as an embodiment of the present invention.

The force application method based on the above-mentioned fourth point, that is, when the telescopic and mobilizing member (22) is used to apply external force in a pushing method, the pushing direction is the direction away from the puncture needle tube; wherein the outer The straight pipe section (12) of the sleeve-holding member (10) is provided with the groove (13), and the groove (13) communicates with the hollow interior of the outer sleeve-holding member (10). the elastic element (221), the slider plate (222) and the extending outer tube (223); the slider plate (222) includes the arc-shaped plate (222a) and the arc-shaped plate (222a) The joint (222b) protruding from one side surface, the joint (222b) passes through the groove (13) to fasten the flexible hollow tube (21), and the arc-shaped plate (222a) covers Overlying the groove (13); the extended outer holding pipe member (223) is assembled to the end of the outer holding sleeve member (10) away from the puncture needle tube (30), and the extended outer holding pipe member (223) is A hollow cylinder (2230) protrudes from the surface of one end and is located in the hollow interior of the outer sleeve member (10). The elastic element (221) is stretched and deformed, so that the flexible hollow tubular body (21) is displaced to leave the holding position.

As mentioned above, the elastic element (221) is a compression spring and is sleeved on the hollow cylinder (2230) to form a limit fixation, and the flexible hollow tube (21) is away from the puncture needle tube (30). The outer periphery of one end is provided with a ring sleeve and the elastic element (221) abuts against the ring sleeve. ) compression produces deformation, so that the flexible hollow pipe body (21) is displaced to leave the holding position, and the displacement distance of the flexible hollow pipe body (21) is based on the length of the groove (13) opened to decide.

According to an embodiment of the present invention, the spring constant of the compression spring is between 0.2 and 3.0 Newtons per centimeter; preferably, the spring constant is between 0.8 and 2.2 Newtons per centimeter. The free length is greater than or equal to the total length of the piercing section (32) and the sharp section (31) in the puncturing needle tube (30). To further explain, the main consideration for the selection and specification range of the compression spring is Factors such as convenience, comfort and safety of users in operation, this is the applicant's analysis of the force of pushing with fingers for a number of medical staff of different ages and genders, and has undergone a large number of experimental tests. The designed technical specification range of the compression spring is one of the key technical features of this case. Supplementary description, plus or minus 15% of the numerical value of the specification range of the compression spring mentioned above is the numerical range allowed and covered by the present invention.

Based on the above two implementations of the puncture and drain device, a surface of the arc-shaped plate member (222a) away from the joint member (222b) is formed as a rough surface with an anti-slip structure (2220). The slippery structure (2220) is a rough surface with a plurality of parallel fine grooves, a sandblasted rough surface, or a rough surface with a plurality of fine bumps evenly distributed on the surface, but it is not limited by this, and can mainly achieve The technical features of the approximate function of the anti-slip function when the finger touches the surface of the arc-shaped plate (222a) are all covered by the claims of the present invention.

Based on the above two implementations of the puncture and drain device, a stop is formed in a partial area of the outer peripheral surface between one end of the straight pipe section (12) away from the inclined pipe section (11) and the groove (13) The rough surface of the slip structure (1200), the anti-slip structure (1200) is a rough surface with a plurality of parallel fine grooves, a rough surface treated by sandblasting, or a rough surface with a plurality of fine bumps uniformly distributed on the surface However, it is not limited thereto, and the technical features that can achieve the approximate function of anti-slip function when the surface of the outer holding sleeve member (10) is held by hand are all covered by the claims of the present invention.

Based on the above two implementations of the puncture and drain, wherein the inclination angle between the inclined pipe section (11) and the straight pipe section (12) is between 10 and 45 degrees, and the outer holding sleeve member The inner diameter of (10) is at least greater than 4 cm, the outer diameter of the flexible hollow tubular body (21) is at least greater than 3 cm and the inner diameter is at least greater than 2 cm.

Based on the above two embodiments of the puncture and drain device, please refer to FIG. 3, which shows the flexible hollow tube body of the section of the inclined tube section (11) and the straight tube section (12). The internal cross-sectional structure of (21); wherein the first drainage chamber (210) inside the flexible hollow pipe body (21) can be a single-chamber sealing zone Z1 in the section of the inclined pipe section (11), The flexible hollow tube The first drainage chamber (210) inside the body (21) can be a multi-chamber sealing zone Z2 in the range of the straight pipe section (11); the tube wall of the single-chamber sealing zone Z1 is closed and hollow inside is formed A drainage channel, the multi-lumen sealing zone Z2 has a closed tube wall and is divided into three drainage channels by the supporting bone, but it is not limited by this, and different supporting bone structures can be designed to form any number of drainage channels as required. Although not shown in the drawings, the above-mentioned second drainage chamber (320) can also be designed for the structure of the single-chamber sealing area. It is further explained that the structural design of the supporting bone can mainly prevent the multi-cavity sealing area from being crushed and cut off, and can effectively prevent the occurrence of blockage caused by the accumulation of blood clots during the drainage process. It is further explained that in the prior art, the transition section extending out of the wound cavity from the outside of the body is often flattened due to the contraction and compression of large muscles, thereby causing poor drainage. Strengthening its compression resistance and making its hardness too large cause the patient to suffer from tolerance barriers, and it is difficult to both. However, the function of the supporting bone described in the present invention is mainly to prevent poor drainage caused by muscle contraction, and to ensure that the patient can tolerate it with a softer material.

In summary, a puncture and drainage device for postoperative wounds proposed by the present invention has the overall structure designed to automatically recover the puncture needle, single-lumen and multi-lumen drainage channel structures, hand-grip contact with rough surfaces, etc. Design, effectively improve many problems such as the inconvenience of conventional technology and operation. After the operation and before the wound is sutured, the doctor can enter the cavity from the wound through the puncture needle tube connected with the puncture drainer as needed, and then puncture from the puncture site near the wound to the outside of the cavity, and the cannula can be placed. Drainage, in the single-chamber sealing area connected with the multi-chamber sealing area, the wound cavity can be flushed synchronously or asynchronously to prevent the accumulation of blood clots, and local administration can also be given according to clinical needs. Compared with the prior art, it is safer and more convenient to use, has a better force point when pulling out the puncture needle tube, is easy to operate, and has better drainage effect.

Although the present invention is disclosed above with its preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with similar arts can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be determined by the scope of the patent application attached to this specification. However, the above-mentioned specific embodiments are only used to illustrate the features and effects of the present invention, rather than to limit the applicable scope of the present invention. Without departing from the spirit and technical scope disclosed in the present invention, any Any equivalent changes and modifications made by using the contents disclosed in the present invention should still be covered by the following patent application scope.

10 Outer holding sleeve 11 Inclination pipe section 12 straight pipe section 1200 Anti-slip structure 20 retractable drainage tube 222 Slider Plate 223 Extended outer holding pipe 30 Puncture needle θ1 Inclination angle

Claims (10)

A puncture and drainage device for postoperative wounds, comprising: The outer-holding sleeve member is a hollow cylindrical steel pipe body, the outer-holding sleeve member comprises an inclined pipe section and a straight pipe section connected thereto, and an inclination angle is maintained between the inclined pipe section and the straight pipe section; A retractable drainage tube, which includes a flexible hollow tube body and a telescopic transfer part connected thereto, the flexible hollow tube body is arranged in the outer sleeve member and is located in a holding position, and the retractable transfer member is used for The flexible hollow tube body is displaced along an axial direction by external force to leave the holding position, and the hollow interior of the flexible hollow tube body is a first drainage chamber and the flexible hollow body the body is shaped according to its internal position in the outer sleeve member; and A puncture needle tube, which is a hollow circular tube and is connected to the flexible hollow tube body to form a linkage, the puncture needle tube comprises a piercing section, a sharp section formed on the top of the puncturing section, and a puncture section from the puncturing section A constricted section extending from the bottom end, the hollow interior of the piercing section is a second drainage chamber, the sharp section and the constricted section are respectively formed with openings at one end away from the piercing section and communicated with the first two drainage chambers, and the first drainage chamber and the second drainage chamber together form a drainage channel; The inclination angle is between 10 and 45 degrees, and the diameter of the puncture needle tube is smaller than the diameter of the outer holding sleeve member. When the flexible hollow tube body is in the holding position, the entire puncture needle tube is The whole is retracted inside the inclined tube section of the outer sleeve member, and when the flexible hollow tube body leaves the holding position, the whole or part of the puncture needle tube protrudes from the outer sleeve member. outside. As claimed in claim 1, the puncture and drainage device for postoperative wounds, wherein the telescopic and mobilizing part is used for applying external force to include any one of the following: The direction of applying force is the axial direction parallel to the longitudinal direction of the outer sleeve member, so that an elastic element is deformed by pushing, so that the flexible hollow tube body is displaced; The direction of applying force is the axial direction perpendicular to the longitudinal direction of the outer sleeve member, and an elastic element is deformed by pressing, thereby causing the flexible hollow tube body to be displaced; or The direction of applying force is to take the axial direction parallel to the longitudinal direction of the outer sleeve member as the rotation axis, and to change the position of the engagement teeth of the screw teeth in a rotational manner, thereby causing the flexible hollow tube body to displace. The puncture and drainage device for postoperative wounds as claimed in claim 2, wherein when the telescopic and mobilizing member is used in a push mode by external force, a groove is defined in the straight pipe section of the outer sleeve member and the The groove communicates with the hollow interior of the outer holding sleeve member, and the telescopic and mobilizing member includes the elastic element, a slider plate and an extending outer holding pipe member; Wherein the length of the groove is greater than or equal to the sum of the overall lengths of the piercing section and the sharp section in the puncture needle tube; The slider plate includes an arc-shaped plate and an engaging element protruding from one side surface of the arc-shaped plate. The engaging element passes through the groove to fasten the flexible hollow tube body. The arc-shaped plate cover over the groove; The extending outer-holding tube member is assembled to one end of the outer-holding tube member that is away from the puncture needle tube, and a hollow cylinder protrudes from one end surface of the outer-holding tube member and is located in the hollow interior of the outer-holding tube member; The elastic element is a tension spring and is sleeved on the hollow cylindrical body to form a limit fixation. The flexible hollow tube body is provided with a hook on the outer periphery of one end away from the puncture needle tube, and the elastic element is hooked on the A shackle, the telescopic and mobilizing part exerts an external force on the arc-shaped plate to push the elastic element to stretch and deform, so that the flexible hollow tube body is displaced to leave the holding position, and the flexible The displacement distance of the hollow pipe body is determined according to the length of the groove. A puncture and drainage device for postoperative wounds, comprising: The outer-holding sleeve member is a hollow circular tubular steel pipe body, the outer-holding sleeve member comprises an inclined pipe section and a straight pipe section connected thereto, and there is a space between the inclined pipe section and the straight pipe section. an angle of inclination; A retractable drainage tube, which includes a flexible hollow tube body and a telescopic transfer part connected thereto, the flexible hollow tube body is arranged in the outer sleeve member and is located in a holding position, and the retractable transfer member is used for The flexible hollow tube body is displaced along an axial direction by external force to leave the holding position, and the hollow interior of the flexible hollow tube body is a first drainage chamber and the flexible hollow body the body is shaped according to its internal position in the outer sleeve member; and A puncture needle tube, which is a hollow circular tube and is connected to the flexible hollow tube body to form a linkage, the puncture needle tube comprises a piercing section, a sharp section formed on the top of the puncturing section, and a puncture section from the puncturing section A constricted section extending from the bottom end, the hollow interior of the piercing section is a second drainage chamber, the sharp section and the constricted section are respectively formed with openings at one end away from the piercing section and communicated with the first two drainage chambers, and the first drainage chamber and the second drainage chamber together form a drainage channel; The inclination angle is between 10 and 45 degrees, and the diameter of the puncture needle tube is smaller than the diameter of the outer sleeve. All are protruding out of the outer holding sleeve member, and when the flexible hollow tube body leaves the holding position, the whole or part of the puncture needle tube is retracted inwardly at the angle of the inclined tube section of the outer holding sleeve member. internal. The puncture and drainage device for postoperative wounds as claimed in claim 4, wherein the means of the telescopic and mobilizing part used for externally applying force includes any one of the following: The direction of applying force is the axial direction parallel to the longitudinal direction of the outer sleeve member, so that an elastic element is deformed by pushing, so that the flexible hollow tube body is displaced; The direction of applying force is the axial direction perpendicular to the longitudinal direction of the outer sleeve member, and an elastic element is deformed by pressing, thereby causing the flexible hollow tube body to be displaced; or The direction of applying force is to take the axial direction parallel to the longitudinal direction of the outer sleeve member as the rotation axis, and to change the position of the engagement teeth of the screw teeth in a rotational manner, thereby causing the flexible hollow tube body to displace. The puncture and drainage device for postoperative wounds according to claim 5, wherein when the telescopic and mobilizing member is used for pushing through external force, a groove is defined in the straight pipe section of the outer sleeve member and the The groove communicates with the hollow interior of the outer holding sleeve member, and the telescopic and mobilizing member includes the elastic element, a slider plate and an extending outer holding pipe member; Wherein the length of the groove is greater than or equal to the sum of the overall lengths of the piercing section and the sharp section in the puncture needle tube; The slider plate includes an arc-shaped plate and an engaging element protruding from one side surface of the arc-shaped plate. The engaging element passes through the groove to fasten the flexible hollow tube body. The arc-shaped plate cover over the groove; The extending outer-holding tube member is assembled to one end of the outer-holding tube member that is away from the puncture needle tube, and a hollow cylinder protrudes from one end surface of the outer-holding tube member and is located in the hollow interior of the outer-holding tube member; The telescopic and mobilizing part exerts an external force on the arc-shaped plate to push the elastic element to stretch and deform, so that the flexible hollow tube body is displaced to leave the holding position; The elastic element is a compression spring and is sleeved on the hollow cylindrical body to form a limit fixation. The flexible hollow tube body is provided with a ring sleeve on the outer periphery of one end away from the puncture needle tube, and the elastic element abuts against the ring sleeve , the telescopic and mobilizing part exerts external force on the arc-shaped plate to compress and deform the elastic element in a push manner, so that the flexible hollow tube body is displaced to leave the holding position, and the flexible hollow tube The displacement distance of the body is determined according to the length of the groove. The puncture and drainage device for postoperative wounds as claimed in claim 3 or 6, wherein a surface of the arc-shaped plate member away from the joint member forms a rough surface with an anti-slip structure, and the anti-slip structure is the The surface is equipped with a rough surface with a plurality of parallel fine grooves, a rough surface treated by sandblasting, or a rough surface with a plurality of fine bumps evenly distributed; A rough surface with an anti-slip structure is formed in a partial area of the outer peripheral surface between the end of the straight pipe section away from the inclined pipe section and the groove, and the anti-slip structure is configured with a plurality of parallel fine grooves on the surface The rough surface, the rough surface treated by sandblasting, or the rough surface with a plurality of fine bumps evenly distributed. The puncture and drainage device for postoperative wounds as claimed in claim 3, wherein the elastic constant of the tension spring is between 0.06 and 1.0 Newton per centimeter, the initial tension is between 0.5 and 3.0 Newton, and the free length is between 0.06 and 1.0 Newton per centimeter. It is less than the overall length of the puncture needle. The puncture and drainage device for postoperative wounds as claimed in claim 6, wherein the elastic constant of the compression spring is between 0.2 and 3.0 Newtons per centimeter, and the free length is greater than or equal to the puncture section in the puncture needle tube and the The sum of the overall lengths of the sharp segments. The puncture and drainage device for postoperative wounds according to claim 1 or 4, wherein the first drainage chamber inside the flexible hollow tube body is a single-lumen sealing area in the section of the inclined tube section, and the flexible hollow tube body is a single-chamber sealing area. The first drainage chamber inside the hollow tube body is a multi-chamber sealing area in the segment range of the straight pipe section, the tube wall of the single-chamber sealing area is closed and the interior is hollow to form a drainage channel, and the multi-chamber sealing area is The tube wall of the sealing area is closed and the interior is divided into at least three drainage channels by the support bone.

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