CN113384467A

CN113384467A - Pipe fixing device

Info

Publication number: CN113384467A
Application number: CN202010169665.0A
Authority: CN
Inventors: 阮剑涛; 邸霈
Original assignee: Rui Ke Medical Technology Suzhou Co ltd
Current assignee: Rui Ke Medical Technology Suzhou Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2021-09-14

Abstract

The invention relates to a pipe fixing device, which comprises a fixing piece, at least one group of moving parts and a middle shaft, wherein the middle shaft is arranged on the fixing piece, and the moving parts are matched with the middle shaft together and can do circular motion relative to the middle shaft so as to realize switching between a first position and a second position; the invention uses the middle shaft as the rotation center to move and offset along the shaft center, so that each moving part can be independently clamped relative to the fixed part, a clamping area is formed between each moving part and the fixed part, the independent clamping of pipes with the same diameter or pipes with different diameters can be realized, and the arrangement of the blocking part ensures that two adjacent moving parts do not interfere with each other, so that the moving parts can flexibly and conveniently move.

Description

Pipe fixing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a tube fixing device for fixing a naso-intestinal tube and a stomach tube.

Background

Currently, it has long been practiced in the medical field to insert nasogastric tubes, feeding tubes, suction tubes or similar tubes into a patient's body, such tubes being inserted from the patient's nasal cavity, through the throat, into the esophagus and into the stomach. The traditional method for fixing the tube on the patient depends on medical adhesive plaster, and the method has the main defects that the water-based adhesive strip of the tube support device loses the adhesive function when meeting body fluid secretion on the body such as nose, the tube is easy to fall off, the fixing reliability is poor, and the tube needs to be wound and adhered again or replaced again in time. More importantly, when the nasogastric tube is squeezed to one side and the adhesive tape is dropped, the patient's skin is irritated by the pressure caused by the tube pressing against the tissue surface around the nostril, requiring reinsertion into the other nostril of the patient, which can be a serious irritation to the patient unless attended by medical personnel.

In addition, most of tube fixing devices such as a nasal clip and the like can only clamp a single tube, and the tube fixing devices can not independently fix two catheters with different tube diameters at the same time, so that the requirements of patients can not be met.

Disclosure of Invention

The applicant carries out research and improvement aiming at the existing problems and provides a pipe fixing device which not only avoids the mode that a viscous material is adhered to a nose, but also can independently clamp two pipes with different pipe diameters, pipe clamping fittings are the same, and design and production cost is reduced.

The technical scheme adopted by the invention is as follows:

the pipe fixing device comprises a fixing piece, at least one group of moving pieces and a middle shaft, wherein the fixing piece and the moving pieces are penetrated through by the middle shaft, and the moving pieces are mutually offset and rotate around the middle shaft relative to the fixing piece so as to realize the switching of the moving pieces between a first position and a second position;

preferably, the fixed part and the moving part are respectively provided with mutually matched clamping structures, and the clamping structures enable the moving part to realize unidirectional clamping relative to the fixed part in the rotation process.

Preferably, the clamping structure is a tooth meshing structure.

Preferably, the tooth engagement structure includes at least one internal tooth provided on the fixed member and at least one external tooth provided on the movable member to engage with the internal tooth.

Preferably, the fixing piece is formed by integrally molding a base part, at least one side part and at least one first connecting part;

preferably, the side part extends and forms from a pair of sides of the base part;

preferably, the first connecting part is formed by extending from the other pair of side faces of the base part.

Preferably, the first supporting portions are formed by extending from both sides of each side portion.

Preferably, the first supporting portion and the side portion have at least one intersecting surface to form a fixed clamping surface for contacting a portion of the outer side surface of the conduit.

Preferably, the fixing and clamping surface includes a vertical surface formed on one side of the side portion and a horizontal surface formed on one side of the supporting portion.

Preferably, the vertical surface is a convex surface, and the transverse surface is a concave surface.

Preferably, at least one end of the first connecting portion extends to form a pressing portion.

Preferably, at least one rib is arranged on the pressing part.

Preferably, the moving part comprises a first arm, a second arm and a second connecting part, and the first arm and the second arm are connected through the second connecting part to form an integrated structure.

Preferably, a wrench portion is provided on the first arm.

Preferably, a hand pressing boss is arranged on the second connecting part.

Preferably, at least one intersecting surface between the second connecting portion and the second arm forms a movable clamping surface for contacting another portion of the side surface of the pipe.

Preferably, the movable clamping surface comprises a transverse surface formed on one side of the second connecting part and a vertical surface formed on one side of the second arm.

Preferably, the transverse surface is a convex surface, and the vertical surface is a concave surface.

Preferably, the fixing piece further comprises at least one blocking piece, and the blocking piece is located between at least two side portions of the fixing piece or located on the side of one side portion of the fixing piece.

Preferably, the blocking member has a middle shaft supporting surface for fitting the outer side surface of the middle shaft.

Preferably, the middle shaft supporting surface is a concave surface.

Preferably, two sides of the barrier extend to form a second supporting portion respectively.

Preferably, the second support part is equal in height to the first support part.

Preferably, a thread is further arranged at one end of the middle shaft.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides a pipe fixing device which comprises a fixing piece, at least one group of moving pieces and a middle shaft, wherein the fixing piece and the moving pieces are penetrated through by the middle shaft, and the moving pieces are mutually offset and rotate around the middle shaft relative to the fixing piece so as to realize the switching of the moving pieces between a first position and a second position. The fixing device is not limited by the traditional mode that the medical adhesive plaster is required to be fixed on the nose or the body, thereby avoiding the phenomenon that the tube is detached due to the influence of the secretion of receptor fluid of the adhesive strip and the loss of the adhesive function. The invention can independently fix two catheters with the same diameter or different diameters at the same time, thereby effectively meeting the requirements of patients.

The invention adopts the clamping structure to ensure that the moving part and the fixed part are not easy to open when the moving part and the fixed part are clamped in the opposite directions, meanwhile, the pressing part is additionally arranged to ensure that the clamping structure is easy to separate, and each clamping surface between the fixed part and the moving part forms surface contact with the outer side surface of the guide pipe to generate clamping force and avoid the pipe falling caused by the accidental pulling-out of the guide pipe.

The barrier piece is arranged in the invention, so that two adjacent moving pieces are not interfered with each other, and the moving pieces can move more flexibly and conveniently.

Through setting up the spanner portion, increased the convenience that the operator operated the moving part, the setting of hand boss also can make the operator more conveniently come the pressfitting moving part simultaneously to quick fixed pipe.

Drawings

FIG. 1 is an exploded view of a tube retaining device according to one embodiment of the present invention;

FIG. 2 is a schematic structural view of a fixing member of the pipe fixing device according to an embodiment of the present invention;

FIG. 3 is a schematic view of one of the moving parts of the pipe fixing device according to an embodiment of the present invention;

FIG. 4 is an elevation view of a tube retaining device retaining two tubes of the same diameter in accordance with an embodiment of the present invention;

FIG. 5 is an isometric view of FIG. 4;

FIG. 6 is an elevation view of a tube retaining device retaining tubes of different diameters in accordance with an embodiment of the present invention;

the reference numerals in the figures are explained below: 1. a fixing member; 101. a first connection portion; 1011. internal teeth; 102. a side portion; 1021. a first support section; 1022. a first bottom bracket mounting hole; 1023. fixing the clamping surface; 103. a base;

2. a moving member; 201. a second bottom bracket mounting hole; 202. a first arm; 2021. a wrench part; 203. a second connecting portion; 2031. pressing the boss by hand; 204. a second arm; 2041. an outer tooth; 205. a movable clamping surface;

3. a middle shaft; 301. a thread;

4. a barrier; 401. a medial axis bearing surface; 402. a second support portion; 403. a connecting shaft;

5. a pipe with the same diameter; 6. and (4) pipes with different diameters.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The tube fixing device claimed in the present invention will be described in detail below with reference to the accompanying drawings, taking the tube fixing device for fixing nasointestinal tubes, gastric tubes, for example, as an example, but as will be understood by those skilled in the art, the tube fixing device according to the present invention is not limited to the tube fixing device for fixing nasointestinal tubes, gastric tubes.

A pipe fixing device as shown in fig. 1, comprising a fixing member 1, at least one set of moving members 2 and a central shaft 3, wherein the fixing member 1 and the moving members 2 are fixed together by the central shaft 3 penetrating through the central shaft, and the moving members 2 are offset from each other and can rotate around the central shaft 3 to realize the switching of the moving members 2 between the first position and the second position. The offset of the moving elements 2 means that each moving element 2 is arranged along the axial direction of the central shaft 3, and preferably, each moving element 2 is offset back and forth along the axial direction of the central shaft 3 in an embodiment of the present invention. When one end of the moving element 2 moves along a first direction relative to the central shaft 3, a clamping area for clamping the conduit between the moving element 2 and the fixed element 1 is opened; when one end of the moving member 2 moves in a second direction relative to the central axis 3, the clamping area between the moving member 2 and the fixed member 1 for clamping the catheter is closed. For the other moving part, the opening and the closing of the clamping area are realized by adopting opposite directions.

Preferably, the fixing member 1 of the pipe fixing device according to an embodiment of the present invention is integrally formed by the base 103, the at least one side 102 and the at least one first connecting portion 101. As shown in fig. 2, in the present embodiment, the fixing member 1 includes a base 103, a pair of side portions 102 extending upward from the front and rear sides of the base 103, and a pair of first connecting portions 101 extending upward from both sides of the base and gradually sideward, and a first bottom bracket mounting hole 1022 for fitting the bottom bracket 3 is opened in each of the side portions 102.

Preferably, first supporting parts 1021 are formed to extend from both sides of each side part 102, as shown in fig. 2,

in the embodiment, the first support portion 1021 is formed by extending upward and gradually sideward on both the left and right sides of the side portion 102.

Preferably, the first support portion 1021 and the side portion 102 have at least one intersecting surface and form a fixed clamping surface 1023 for contacting a portion of the outer side of the catheter. As shown in fig. 2, the fixing clamping surface 1023 of the embodiment includes a vertical surface formed on one side of the side portion 102 and a horizontal surface formed on one side of the first supporting portion 1021, the vertical surface is convex, and the horizontal surface is concave, which are beneficial for clamping the catheter, but it is not limited to the concave and convex surfaces, and can be alternatively configured as a plane surface, a wave surface, etc.

Preferably, at least one end of the first connecting portion 101 extends to form a pressing portion 1012. In the embodiment, as shown in fig. 2, the left and right ends of the first connecting portion 101 are respectively extended along a substantially horizontal direction to form pressing portions 1012.

Preferably, at least one rib 1013 is provided on the pressing portion 1012, in the embodiment, as shown in fig. 2, three ribs 1013 are provided on the pressing portion 1012, and the rib 1013 is used to increase friction force and is not limited to three ribs 1013.

Preferably, as shown in fig. 3, the moving element 2 includes a first arm 202, a second arm 204 and a second connecting portion 203, the first arm 202 and the second arm 204 are connected by the second connecting portion 203 to form an integral structure, and a second bottom bracket mounting hole 201 for fitting the bottom bracket 3 is formed at a connection position of the first arm 202 and the second connecting portion 203.

Preferably, the first arm 202 is provided with a wrench portion 2021, and the second connecting portion 203 is provided with a hand pressing boss 2031, as shown in fig. 3, the wrench portion 2021 for opening the moving element 2 is provided at the outer edge of the end of the first arm 202 not connected to the second connecting portion 203. As shown in fig. 3, the front and rear sides of the second connecting portion 203 extend to form hand pressing bosses 2031 for a user to manually press and clamp the catheter. As shown in fig. 3, the top surface of the hand boss 2031 is coplanar with the top surface of the second connector 203.

Preferably, the second arm 204 and the second connecting portion 203 have at least one intersecting surface therebetween and form a movable clamping surface 205 for contacting another portion of the outer side surface of the catheter. Preferably, as shown in fig. 3, the movable clamping surface 205 in the embodiment includes a transverse surface formed on one side of the second connecting portion 203 and a vertical surface formed on one side of the second arm 204, the vertical surfaces are concave surfaces, and the transverse surface is a convex surface, which are beneficial for clamping the catheter, but it is not limited to the concave surface and the convex surface, and can be alternatively configured as a plane surface, a wave surface, etc.

Preferably, the fixed member 1 and the moving member 2 are respectively provided with mutually matched clamping structures, and the clamping structures enable the moving member 2 to realize unidirectional clamping in rotation relative to the fixed member 1.

Preferably, the locking structure defined by the pipe fixing device according to the embodiment of the present invention is a tooth engagement structure.

The tooth engagement structure in the embodiment includes at least one inner tooth 1011 provided on the fixed member 1 and at least one outer tooth 2041 provided on the movable member 2 to be engaged with the inner tooth 1011. As shown in fig. 2, the internal teeth 1011 are formed on the surface of the first connecting portion 101 facing the first support portion 1021. The external teeth 2041 are formed on the surfaces of the second arms 204 facing the first connecting portion 101, respectively. The inner teeth 1011 and the outer teeth 2041 are all one-way meshing teeth, and two sides of each tooth are asymmetrically arranged, for example, one side of the inner teeth 1011 is substantially parallel to a horizontal plane, and the other side is inclined to the horizontal plane, so that the outer teeth 2041 can be clamped conveniently. However, when the inner teeth 1011 and the outer teeth 2041 are not easily opened by the reverse action, it is necessary to press the pressing portion 1012 downward so that the inner teeth 1011 and the outer teeth 2041 are easily separated.

The pipe fixing device further comprises at least one blocking member 4, wherein the blocking member 4 is located between at least two side portions 102 of the fixing member 1 or located at the side of one side portion 102 of the fixing member 1, and preferably, the blocking member 4 is located between two adjacent side portions 102 of the fixing member 1 in the pipe fixing device according to the embodiment of the present invention to form a movement space for independently installing the moving member 2. As shown in fig. 2, in the embodiment, the blocking member 4 is one, and two moving members 2 are respectively disposed on two sides of the blocking member, in other embodiments, the blocking members 4 are multiple and are placed between a pair of side portions 102, so as to form a plurality of moving spaces between the blocking member and the adjacent side portions and between the adjacent side portions, and each moving space can be independently installed with one moving member 2, so that the moving members 2 are not limited to group 1 of the embodiment. The connecting shaft 403 penetrates the blocking member 4 and is fixedly connected to the inner side surface of each side portion 102.

Preferably, the blocking member 4 has a central shaft support surface 401 for engaging the outer side surface of the central shaft 3. As shown in fig. 2, in the present embodiment, the bottom bracket supporting surface 401 is opened on the top surface of the blocking member 4, and the bottom bracket supporting surface 401 is a concave surface for fitting with the outer side surface of the bottom bracket 3.

Preferably, the two sides of the blocking member 4 extend to form the second supporting portion 402. As shown in fig. 2, in the present embodiment, the second supporting portion 402 extends and forms along the left and right sides of the blocking member 4 to the side, and the shape of the second supporting portion 402 is substantially the same as and equal to the height of the first supporting portion 1021, so as to assist in supporting and guiding the pipe to be fixed.

Preferably, as shown in fig. 1, a thread 301 is further provided at one end of the central shaft 3 to perform corresponding fixing with a nut, so that the nut can be screwed on the thread 301 to prevent the central shaft 3 from being detached from the fixing member 1.

The use of the pipe fixing device of the present invention will be further described with reference to fig. 1 to 6.

Fig. 4 and 5 show a state in which the same-diameter pipe 5 is held. In the clamping process, firstly, the clamping area is opened, namely, a user touches the wrench part 2021 of the first arm 202 in the moving part 2 by hand and applies force to make two adjacent moving parts 2 do reverse circular motion by taking the central axis 3 as the center, wherein one moving part 2 does anticlockwise motion, the other moving part 2 does clockwise motion, the number of meshing teeth of the external teeth 2041 of each moving part 2 and the internal teeth 1011 of the fixing part 1 is gradually reduced in the motion process, and the clamping area formed by the movable clamping surface 205 of each moving part 2 and the fixed clamping surface 1023 of the fixing part 1 is opened; then, a clamping operation is performed, i.e. the same-diameter pipe 5 is respectively placed on the first supporting portion 1021 and the second supporting portion 402, the first arm and/or the hand pressing boss 2031 on the moving part 2 is operated again to apply force to the moving part 2, and the moving part 2 is applied with force and then performs relative circular motion again with the central axis 3 as a rotation center, so that the number of meshing teeth of the external teeth 2041 on the outer side of the second arm 204 and the internal teeth 1011 of the fixing part 1 is gradually increased, and a clamping area formed by the movable clamping surface 205 of the moving part 2 and the fixed clamping surface 1023 of the fixing part 1 is gradually closed until the movable clamping surface 205 of the moving part 2 contacts the outer peripheral surface of the same-diameter pipe 5, so that the same-diameter pipe 5 is fixed and cannot move.

As shown in fig. 6, in the same operation method as the same diameter pipe 5, the clamping area formed by the movable clamping surface 205 of each moving member 2 and the fixed clamping surface 1023 of the fixed member 1 is opened, then the different diameter pipes 6 are sequentially placed on the first support 1021 and the second support 402, and then the first arm is operated again and/or the hand press boss 2031 of each moving member is pressed, so that the clamping area formed by the movable clamping surface 205 of each moving member 2 and the fixed clamping surface 1023 of the fixed member 1 is gradually closed and the different diameter pipes 6 are fixed.

In above-mentioned two kinds of fixed states, with the lateral surface and the activity clamping surface 205 of footpath pipe 5 and different footpath pipe 6, form the form of face contact between fixed clamping surface 1023, utilize vertical face (convex surface) on activity clamping surface 205 and the fixed clamping surface 1023 can with the contact of pipe lateral surface and carry out slight indent deformation (nevertheless do not influence pipe normal use), thereby produce very big card system power and avoid the pipe to receive unexpected extraction to cause the takeover, this kind of fixed mode is more firm.

The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.

Claims

1. Pipe fixing device, its characterized in that: the pipe fixing device comprises a fixing part, at least one group of moving parts and a middle shaft, wherein the fixing part and the moving parts are penetrated through by the middle shaft, and the moving parts are mutually offset and can rotate around the middle shaft relative to the fixing part so as to realize the switching of the moving parts between a first position and a second position.

2. The tube securement device of claim 1, wherein: the fixed part and the moving part are respectively provided with mutually matched clamping structures, and the clamping structures enable the moving part to realize unidirectional clamping relative to the fixed part in the rotation process.

3. The pipe fixation device of claim 2 wherein: the clamping structure is a one-way tooth meshing structure, and the one-way tooth meshing structure comprises at least one inner tooth arranged on the fixing piece and at least one outer tooth arranged on the moving piece and meshed with the inner tooth.

4. A pipe fixing device as claimed in any one of claims 1 to 3, wherein: the fixing piece is integrally formed by a base part, at least one side part and at least one first connecting part;

the side part extends and forms from a pair of side surfaces of the base part;

the first connecting part is formed by extending from the other pair of side faces of the base.

5. The tube securement device of claim 4, wherein: the two sides of each side part extend to form a first supporting part respectively.

6. The tube securement device of claim 5, wherein: the first supporting part and the side part at least have an intersecting surface and form a fixed clamping surface for contacting a part of the outer side surface of the pipe.

7. The tube securement device of claim 6, wherein: the fixed clamping surface comprises a vertical surface formed on one side of the side part and a transverse surface formed on one side of the supporting part.

8. The tube securement device of claim 7, wherein: the vertical surface is a convex surface or a concave surface, and correspondingly, the transverse surface is a concave surface or a convex surface.

9. The tube securement device of claim 4, wherein: at least one end of the first connecting part extends to form a pressing part.

10. The tube securement device of claim 9, wherein: the pressing part is provided with at least one convex rib.

11. A pipe fixing device as claimed in any one of claims 1 to 3, wherein:

the moving piece comprises a first arm, a second arm and a second connecting portion, and the first arm and the second arm are connected through the second connecting portion to form an integrated structure.

12. The tube securement device of claim 11, wherein: the first arm is provided with a wrench part.

13. The tube securement device of claim 11, wherein: and the second connecting part is provided with a hand pressing boss.

14. The tube securement device of claim 11, wherein: at least one intersecting surface is arranged between the second connecting part and the second arm, and the second connecting part and the second arm form a movable clamping surface which is used for contacting the other part of the side surface of the pipe.

15. The tube securement device of claim 14, wherein: the movable clamping surface comprises a transverse surface formed on one side of the second connecting part and a vertical surface formed on one side of the second arm.

16. The tube securement device of claim 15, wherein: the transverse surface is a convex surface or a concave surface, and correspondingly, the vertical surface is a concave surface or a convex surface.

17. The tube securement device of claim 4, wherein: the device comprises at least one blocking piece, wherein the blocking piece is positioned between at least two side parts of a fixing piece or positioned on the side of one side part of the fixing piece;

the barrier is provided with at least one middle shaft supporting surface for being attached to the outer side surface of the middle shaft, and the middle shaft supporting surface is a concave surface.

18. The tube securement device of claim 17, wherein: the two sides of the barrier piece extend to form second supporting parts respectively, and the second supporting parts are as high as the first supporting parts.