CN105999519B

CN105999519B - Negative pressure double-sleeve drainage tube

Info

Publication number: CN105999519B
Application number: CN201610389057.4A
Authority: CN
Inventors: 章晓东; 沈贤; 庄成乐
Original assignee: Wenzhou Celecare Medical Devices Co ltd
Current assignee: Wenzhou Celecare Medical Devices Co ltd
Priority date: 2016-06-02
Filing date: 2016-06-02
Publication date: 2022-06-24
Anticipated expiration: 2036-06-02
Also published as: CN105999519A

Abstract

The invention relates to a negative pressure double-sleeve drainage tube, which comprises an outer sleeve and a dredging inner sleeve and is characterized in that: the internal section inside wall of outer tube is along a plurality of sand grips of circumference evenly distributed, open at the center of sand grip has the hole, the hole and the passageway of a setting in the external end lateral wall of outer tube of sand grip converge the intercommunication, the external section inner wall of outer tube is equipped with the round recess along the circumferencial direction, it sets up the opening to correspond the passageway in the recess, opening and passageway intercommunication adopt above technical scheme after: guarantee the interior position of unmovable external cannula body cavity, clear away various such as blood clot, tissue piece and albumen mix the plug simply, effectively, easily resume unobstructed drainage, safely, high-efficiently will be passively upgraded into the initiative drainage, realize the best drainage effect, be the focus among the conservative treatment means to probably avoid the secondary operation.

Description

Negative pressure double-sleeve drainage tube

Technical Field

The invention belongs to the field of medical drainage tubes, and particularly belongs to a negative pressure double-sleeve drainage tube.

Background

Drainage is an important technology in medicine, and the aim of realizing effective drainage is fulfilled. At present, most hospitals at home and abroad mostly adopt a common rubber or silica gel drainage tube for drainage after thoracic cavity and abdominal cavity operations or various visceral organ tissue operations, and the tube cavity of the drainage tube is easily blocked by blood clots and tissue cell protein aggregates due to the structure and the material (material) of the tube cavity, so that the outcome of diseases and the observation and judgment of the illness state after the operation are influenced; under the condition of fistula and the like, passive drainage cannot be effectively upgraded into active drainage, and along with the continuous improvement of medical quality requirements of doctors and patients, the improvement of the traditional drainage tube is necessary.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the drainage device has the advantages that the drainage device can be used for realizing the drainage to the maximum extent after thoraco-lung, heart, mediastinum and other parts, abdominal gastrointestinal tract, hepatobiliary and recurrent complicated infection hernia surgery, and conservative treatment of thoracic cavity, abdominal cavity hydrops, hematocele, biliary fistula, intestinal fistula, lacunar infection and abscess after the surgery, and then the negative pressure double-sleeve drainage tube is provided according to the content.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a two cover drainage tubes of negative pressure, includes interior sleeve pipe of outer tube and drainage, its characterized in that: the inner side wall of the inner section of the outer sleeve is uniformly distributed with a plurality of raised lines along the circumference, the center of each raised line is provided with a hole, the hole of each raised line is converged and communicated with a channel arranged in the side wall of the outer section of the outer sleeve, the inner wall of the outer section of the outer sleeve is provided with a circle of groove along the circumferential direction, an opening is arranged in the groove corresponding to the channel, and the opening is communicated with the channel; the lateral wall of the internal section of the interior sleeve pipe of drainage evenly sets up a plurality of side opening, be equipped with the input thing passageway with external input thing intercommunication in the external lateral wall of the interior sleeve pipe of drainage, the output of input thing passageway is opened and is corresponded at the interior sheathed tube lateral wall of drainage and position and recess, the inner wall of outer tube is in the sealed contact of the outer wall of the corresponding position of the left and right sides position of recess and drainage, the internal end of the body and the negative pressure device intercommunication of drainage.

The outer circumference in the middle part of interior sleeve pipe of drainage is equipped with the round and aerifys the sacculus, the biggest cross-section diameter after aerifing the sacculus is greater than or equal to the internal diameter of outer tube, aerify the sacculus and be connected with an inlet channel who sets up in the interior sleeve pipe lateral wall of drainage, inlet channel links to the air supply of the outer terminal side of the interior sleeve pipe of drainage from the interior sleeve pipe lateral wall of drainage.

The input end of the input object channel adopts a one-way three-way pipe structure, one input end of the input object channel is communicated with liquid, and the other input end of the input object channel is communicated with the atmosphere.

The terminal surface of the internal end of body of outer tube is opened there is middle drainage hole, the circumference lateral wall of the internal section of outer tube is opened there are a plurality of side drainage hole, the distolateral of the internal section of drainage endotheca is equipped with secondary drainage hole.

The outer sleeve is formed by splicing silica gel and rubber by taking the middle position as a boundary.

The longitudinal section of the hole of the fixed convex strip is fan-shaped.

The longitudinal rows of the tube walls of the outer sleeve and the drainage inner sleeve are provided with metal developing strips and scale marks.

And the positions of the drainage inner sleeve, which correspond to the left side and the right side of the groove, are respectively provided with a sealing block.

Be equipped with an interior sleeve pipe of mediation that is used for replacing drainage in the outer tube, the outer section of the body of the interior sleeve pipe of mediation is equipped with the sealed piece of cover that the round is used for covering the recess of outer tube, the interior sheathed tube output of mediation adopts one-way tee bend tubular construction, the input of a time and the negative pressure intercommunication of the interior sheathed tube output of mediation, another secondary input and the atmosphere intercommunication of the interior sheathed tube of mediation.

After the technical scheme is adopted: after operations of thoracic cavities such as lung, heart, mediastinum and the like and abdomens and abdominal walls such as stomach intestine, liver and gall bladder, recurrent complex infected hernias and the like, an outer cannula is singly reserved at or near the operation position, and in addition, the cannula can be regarded as a common drainage tube and is connected with a drainage bag conventionally. If a large amount of effusion, hematocele, biliary fistula, intestinal fistula, anastomotic fistula, lacunar infection and abscess appear in the chest cavity and the abdominal cavity; and because of blood clot, histocyte piece and albumen mix the plug and block up the outer tube, cause not very unobstructed, even under the circumstances of stifled pipe, guarantee not unmovable outer tube body intracavity position, use mediation interior sleeve pipe simply, effectively to clear away various such as blood clot, histocyte piece and albumen mix the plug, easily resume unobstructed drainage, the method is as follows: after the dredging inner sleeve pipe is connected with negative pressure, the dredging inner sleeve pipe extends into the outer sleeve pipe, and after the head end of the dredging inner sleeve pipe is contacted with a blockage, the thumb of an operator closes the other opening which is opened to the atmosphere, so that the blockage is sucked out under the action of the negative pressure; under special conditions, the fistula can safely and efficiently upgrade the passive drainage to the active drainage by using the drainage inner sleeve, so that the optimal drainage effect is realized, and secondary operation is possibly avoided, and the method comprises the following steps: insert the sleeve pipe in the drainage, because the inner wall of outer tube is in the corresponding position outer wall sealing contact of the left and right sides of recess and inner tube, the interior sheathed tube input thing of drainage can only advance to the recess from the input thing passageway input, thereby the hole of the fixed sand grip of outer tube internal wall is input to the opening through the passageway of outer tube internal wall, then the sleeve pipe is connected with vacuum apparatus in the drainage, carry out negative pressure initiative suction drainage, sleeve pipe middle section position has set up simultaneously and has aerifyd the sacculus in the drainage, aerify the sacculus after finishing inflating, keep apart into drainage chamber and clean chamber with the inner chamber of outer tube, the mixed filth in the drainage intracavity can not the refluence and accumulate in clean chamber promptly, thereby avoid the retrograde infection of the body intracavity.

Drawings

FIG. 1 is a schematic structural view of the drainage inner cannula of the present invention after being installed in the outer cannula;

FIG. 2 is a schematic structural view of the outer sleeve of the present invention;

FIG. 3 is a schematic view of the structure of the drainage cannula of the present invention;

fig. 4 is a schematic structural diagram of the inner dredging sleeve of the invention.

Detailed Description

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, 1, a negative pressure double-sleeve drainage tube comprises an outer sleeve 1 and an inner drainage sleeve 2, and is characterized in that: the utility model discloses an outer sleeve 2, including outer sleeve 1, the internal section 3 inside wall of outer sleeve 1 is along a plurality of sand grips 4 of circumference evenly distributed, open at the center of sand grip 4 has hole 5, the hole 5 and a passageway 6 that sets up in the external section 7 lateral wall of outer sleeve 1 converge the intercommunication, the external section 7 inner wall of outer sleeve 1 is equipped with round recess 8 along the circumferencial direction, the input department 31 that corresponds passageway 6 in the recess 8 sets up opening 9, opening 9 and passageway 6 intercommunication, the lateral wall of the internal section 11 of the interior casing 2 of drainage evenly sets up a plurality of side opening 12, be equipped with the input thing passageway 14 with outside input thing intercommunication in the external section 13 lateral wall of the interior casing 2 of drainage, the output 15 of input thing passageway 14 is opened and is corresponded with recess 8 at the lateral wall and the position of the interior casing 2 of drainage, the outer wall of outer sleeve 1 is in the outer wall sealing contact of the corresponding position of the left and right sides position of recess 8 and the interior casing 2 of drainage, the external end 16 of the drainage inner sleeve 2 is communicated with a negative pressure device.

Further optimization explanation is made for each component of the invention:

1. referring to fig. 1, a circle of inflatable balloon 17 is arranged on the outer circumference of the middle part of the drainage inner sleeve 2, the maximum cross-sectional diameter of the inflatable balloon 17 after being inflated is larger than or equal to the inner diameter of the outer sleeve 1, the inflatable balloon 17 is connected with an air inlet channel 18 arranged in the side wall of the drainage inner sleeve 2, the air inlet channel 18 is connected to an air source 19 at the outer end 16 side of the outer end of the drainage inner sleeve 2 from the side wall of the drainage inner sleeve 2, and the inflatable balloon 17 isolates the outer sleeve into a drainage cavity 39 and a cleaning cavity 38 after being inflated, that is, the body fluid at the inner section of the outer sleeve body cannot flow back to the cleaning cavity 38 from the drainage cavity 39.

2. Referring to fig. 3, the input end 20 of the input object channel 14 adopts a three-way pipe structure, one input end 21 of the input object channel 14 is communicated with liquid, the other input end 22 of the input object channel 14 is communicated with the atmosphere, and the introduced gas plays a role in pressure dynamic balance in the pipe.

3. Referring to fig. 1, the end face of the inner end 23 of the outer sleeve 1 is provided with a middle drainage hole 24, the circumferential side wall of the inner section 3 of the outer sleeve 1 is provided with a plurality of side drainage holes 26, the end side of the inner end 27 of the drainage inner sleeve 2 is provided with a secondary drainage hole 28, the middle drainage hole 24 conducts drainage for body fluid in a human body, and the secondary drainage hole 28 and the side drainage holes 26 also play a role in drainage.

4. Referring to fig. 2, the outer sleeve 1 is formed by splicing silica gel and rubber at a middle position, the outer section 7 of the outer sleeve 1 is silica gel, and the inner section 3 of the outer sleeve 1 is rubber.

5. The longitudinal section of the pore 5 of the convex strip 4 is fan-shaped, and the fan-shaped structure can enable an external input object to overflow in a fan-shaped mode.

6. Referring to fig. 1, the outer sleeve 1 and the drainage inner sleeve 2 are provided with metal developing strips and scale marks in the longitudinal rows of the tube wall.

7. Referring to fig. 1, the drainage inner sleeve 2 is provided with a sealing block 29 at the position corresponding to the left and right sides of the groove 8, the sealing connection between the drainage inner sleeve 2 and the groove 8 of the outer sleeve 1 is realized by the sealing block, that is, the external input object of the input object channel 14 can only enter the groove 8, then enter the channel 6 through the opening 9, then reach the convex strip 4 of the outer sleeve 1, and finally be output from the hole of the convex strip 4.

8. Referring to fig. 4, an inner dredging sleeve 32 for replacing the inner drainage sleeve 2 is arranged in the outer sleeve 1, a circle of covering sealing blocks 34 for covering the grooves 8 of the outer sleeve 1 is arranged on the outer section 33 of the inner dredging sleeve 32, an output end 35 of the inner dredging sleeve 32 adopts a one-way three-way pipe structure, a secondary input end 36 of the output end 35 of the inner dredging sleeve 32 is communicated with liquid, another secondary input end 37 of the inner dredging sleeve 14 is communicated with atmosphere, the inner dredging sleeve is extended into the outer sleeve, the position in the cavity of the outer sleeve is guaranteed not to be moved, and various mixed blockages such as blood clots, tissue fragments and proteins are simply and effectively removed by using the inner dredging sleeve.

The design principle of the invention is as follows: the negative pressure can strengthen drainage and promote tissue centripetal gathering and growth, which is particularly important after fistula occurs in abdominal cavity viscera, and the drainage inner sleeve is the core of the effect; the outer sleeve plays a role in isolation, and the conditions that the inner sleeve directly contacts with viscera, secondary injury, bleeding and the like are avoided. The details are as follows: the design of the channel in the outer sleeve and the plurality of convex strips in the inner section of the body ensures that the flushing liquid can be uniformly distributed in the drainage inner cavity, so that the drainage is smoother and more efficient; one end of the inner sleeve is connected with negative pressure, the other end of the inner sleeve is designed into a one-way three-way structure, so that liquid and gas can independently enter the tube cavity, the pressure between the entering and exiting objects is dynamically balanced, the last end of the inner sleeve is communicated with the air bag in the middle of the drainage inner sleeve, and after the air bag is inflated, the isolation outer sleeve is a cleaning cavity and a drainage cavity, so that retrograde infection is avoided.

The invention has the beneficial effects that: after operations of thoracic cavities such as lung, heart, mediastinum and the like and abdomens and abdominal walls such as stomach intestine, liver and gall bladder, recurrent complex infected hernias and the like, an outer cannula is singly reserved at or near the operation position, and in addition, the cannula can be regarded as a common drainage tube and is connected with a drainage bag conventionally. If a large amount of effusion, hematocele, biliary fistula, intestinal fistula, anastomotic fistula, lacunar infection and abscess appear in the chest cavity and the abdominal cavity; and because blood clot, histiocyte fragment and albumen mix the plug to stop up the outer thimble, cause the situation not very unobstructed, even stop up the tube, guarantee not to move the intracavitary position of outer thimble body, use dredge inner thimble to clear away various such as blood clot, tissue fragment and albumen mix the plug simply, effectively, relax and resume unobstructed drainage, the method is as follows, after pressing the inner thimble of dredging, stretch into the outer thimble, after dredging the head end of inner thimble contacts the plug, the operator thumb seals another opening opened to the atmosphere, thus the plug is sucked out under the negative pressure; under special conditions, such as fistula, the drainage inner sleeve can be safely and efficiently upgraded into active drainage to realize the optimal drainage effect so as to possibly avoid secondary operations, the method comprises the following steps of inserting the drainage inner sleeve into the outer sleeve, inputting input objects of the drainage inner sleeve into the groove only from an input object channel because the inner wall of the outer sleeve is in sealing contact with the outer wall of the corresponding position of the inner tube at the left side and the right side of the groove, inputting the input objects into the hole of the fixing lug on the inner wall of the inner section of the outer sleeve through the opening of the channel on the inner wall of the outer sleeve, then connecting the drainage inner sleeve with a negative pressure device to carry out negative pressure active suction drainage, arranging an inflatable balloon at the middle section of the drainage inner sleeve, and isolating the inner cavity of the outer sleeve into a drainage cavity and a cleaning cavity after the inflatable balloon is inflated, namely mixed dirt in the drainage cavity can not flow backwards and accumulate in the cleaning cavity, thereby avoiding retrograde infection in the body cavity

While explaining several terms of the invention:

1) the internal section refers to a part of the whole section of the external sleeve or the drainage inner sleeve facing the inside of the human body;

2) the inner end of the body refers to the position of the outer sleeve or the drainage inner sleeve at the end part inside the human body;

3) the external section refers to the part of the whole section of the external sleeve or the drainage inner sleeve facing the outside of the human body;

4) the external end of the body refers to the position of the external sleeve or the drainage inner sleeve at the external end of the human body.

Claims

1. The utility model provides a two cover drainage tubes of negative pressure, includes interior sleeve pipe (2) of outer tube (1) and drainage, its characterized in that: the internal section (3) inside wall of outer tube (1) is along a plurality of sand grips (4) of circumference evenly distributed, open at the center of sand grip (4) has hole (5), hole (5) and one setting of sand grip (4) are joined the intercommunication at passageway (6) in the external section (7) lateral wall of outer tube (1), passageway (6) lead to the external end of outer tube (1), the external section (7) inner wall of outer tube (1) is equipped with round recess (8) along the circumferencial direction, input department (31) that corresponds passageway (6) in recess (8) sets up opening (9), opening (9) and passageway (6) intercommunication, the lateral wall of the internal section (11) of interior sleeve pipe (2) of drainage evenly sets up a plurality of side opening (12), be equipped with the input thing passageway (14) of external input thing intercommunication in the external section (13) lateral wall of interior sleeve pipe (2) of drainage, the output end (15) of the input object channel (14) is arranged on the outer side wall of the drainage inner sleeve (2) and corresponds to the groove (8), the inner wall of the outer sleeve (1) is in sealing contact with the outer wall of the drainage inner sleeve (2) at the corresponding position at the left side and the right side of the groove (8), and the outer end (16) of the drainage inner sleeve (2) is communicated with a negative pressure device; the outer circumference of the middle part of the drainage inner sleeve (2) is provided with a circle of inflatable balloon (17), the maximum section diameter of the inflatable balloon (17) after being inflated is larger than or equal to the inner diameter of the outer sleeve (1), the inflatable balloon (17) is connected with an air inlet channel (18) arranged in the side wall of the drainage inner sleeve (2), the air inlet channel (18) is connected with an air source (19) at the outer end (16) side of the drainage inner sleeve (2) from the side wall of the drainage inner sleeve (2), the input end (20) of the input object channel (14) adopts a one-way three-way pipe structure, one input end (21) of the input object channel (14) is communicated with liquid, the other input end (22) of the input object channel (14) is communicated with the atmosphere, the end surface of the inner end (23) of the outer sleeve (1) is provided with a middle drainage hole (24), the circumferential side wall of the inner section (3) of the outer sleeve (1) is provided with a plurality of side drainage holes (26), and a secondary drainage hole (28) is formed in the end side of the inner end (27) of the drainage inner sleeve (2).

2. The negative pressure double cannula drainage tube of claim 1 wherein: the outer sleeve (1) is formed by splicing silica gel and rubber by taking the middle position as a boundary, the external section (7) of the outer sleeve (1) is silica gel, and the internal section (3) of the outer sleeve (1) is rubber.

3. The negative pressure double cannula drainage tube of claim 1 wherein: the longitudinal section of the pore (5) of the convex strip (4) is fan-shaped.

4. The negative pressure double cannula drainage tube of claim 1 wherein: the tube wall longitudinal rows of the outer sleeve (1) and the drainage inner sleeve (2) are provided with metal developing strips and scale marks.

5. The negative pressure double cannula drainage tube of claim 1 wherein: the drainage inner sleeve (2) is provided with a sealing block (29) at the position corresponding to the left side and the right side of the groove (8).