TWI816606B - Variable angle suction device - Google Patents

Abstract

The present invention provides a variable angle suction device comprising a handle portion located at a proximal end, and a hollow drainage rod extending from the handle portion to a distal end. A rotate portion mounted and fluid-connected between the handle portion and the hollow drainage rod. The hollow drainage rod can change the extending direction according to a rotate angle formed from the rotate portion.

Description

Multi-angle suction device

A medical device, in particular a suction device capable of displaying multiple angles.

In order to avoid the problem of poor vision in a target area due to accumulation of blood, body fluids or organ contents during medical procedures, a suction device is very commonly used in operating rooms or treatment rooms. The suction device can not only remove accumulated blood, body fluids or organ contents, but can also introduce physiological saline or drugs to the target area as needed, so that the target area can be fully cleaned or undergo medical treatment.

The common suction device includes a handle and a hollow rod-shaped drainage rod extending distally from the handle. The handle includes a conversion piece to control the suction device at the distal end of the drainage rod. Perform the act of aspirating or removing a liquid. However, when the target area is located in the body or in a place that is difficult to reach, a user often needs to rotate his or her wrist or hold the suction device at an angle to match the suction device to the target area, so that the suction device can be aligned with the target area. Users often suffer from inconvenience and restrictions due to the angle. Therefore, developing a suction device that can adapt to various angles is an urgent goal in medical-related fields.

In order to develop a suction device that can be adapted to various angles, the present invention provides a multi-angle suction device, including a handle portion located at a proximal end, and extending from the handle portion toward a distal end. An elongated and hollow rod-shaped drainage rod. The handle portion includes a drainage channel connected to the drainage rod and a switching mechanism. The switching mechanism is used to control the drainage channel and/or the drainage rod to perform suction or elimination. A liquid.

Among them, a rotating mechanism is disposed between the handle and the drainage rod, fluidly communicates with the drainage channel and the drainage rod, and includes a first component, and a rotatable combination with the first component based on an axis. A second component, the first component and the second component jointly define a conductive chamber that communicates with the drainage channel and the drainage rod, and a locking piece selectively connected with the first component or the second component Locking engagement to lock or release the rotational relationship between the first component and the second component, wherein when the second component rotates relative to the first component, the drainage rod changes the extension of its distal end according to a rotation angle direction.

Wherein, the first component is integrally assembled with the handle portion, the second component is connected to the drainage rod, and the locking piece is movably disposed on the handle portion and is optionally connected to the second component Lock snap.

Wherein, the handle portion is provided with a slide groove adjacent to the second component, and the locking member can move along the slide groove. The second component is concavely provided with at least two limiting grooves on the surface of a ring side wall. The rotation position of the second component relative to the first component, at least two of the limiting grooves can be manipulated to correspond to or misalign the position of the locking piece. The locking piece includes an operating part, and at least a part of the operating part protrudes. The slide groove, the handle surface, and a tab portion move toward or away from the second component according to the displacement of the locking member along the slide groove.

Wherein, when one of the limiting grooves of the second component corresponds to the locking piece and the locking piece is displaced to the position closest to the second component, the tongue portion penetrates into the limiting groove and fixes the second component.

Furthermore, the second component is recessed with two limiting grooves on the surface of the ring side wall, and a rotation angle is formed between the two limiting grooves based on a spindle, and the rotation angle is 70 degrees.

Further, a spring gives the locking piece a biasing force to abut against the second component. When the locking piece corresponds to one of the limiting grooves, the tongue portion is locked with one of the limiting grooves according to the biasing force. Snap.

When the multi-angle suction device of the present invention is in use, a user can operate the relative position of the locking member in the slide groove through the operating part, so that the tab part can move closer or farther away from the second component, and lock or Release the second component.

The second component can be recessed with several limiting grooves on the surface of the ring side wall according to the requirements, so that the drainage rod can extend in multiple directions according to the use requirements through the arrangement of the limiting grooves. When the position of one of the limiting grooves of the second component corresponds to the locking piece, and the locking piece is displaced along the slide groove until the tongue portion is deep into the limiting groove, the second component is fixed through the tongue portion, Prevent it from rotating relative to the first component.

The spring gives the locking piece a biasing force to abut against the second component, so that it can automatically displace according to the biasing force so that the tongue portion engages and locks with one of the limiting grooves. The user does not need to Repeatedly confirm whether the multi-angle suction device has been locked, so that the overall use can be more convenient and intuitive.

The first component is combined with a first rotating shaft and a second rotating shaft of the second component along the axis, which can further produce the effect of diverting liquid to avoid or reduce the risk of complete blockage of the multi-angle suction device. phenomenon.

10: Handlebar

11:Switch mechanism

111:Button key

12:Chute

20: Drainage rod

30: Rotating mechanism

31:First component

311:First chamber

312:First axis

313: Connected perforation

314:First side

315: First annular wall

316: Rotating baffle

317: Gap

32:Second component

321:Second chamber

322:Second axis

323:Perforation

324:Second side

325:Second annular wall

326: Rotating convex piece

327: Limit slot

33: Locking piece

331:Operation Department

332: Tab part

34:Conduction chamber

35:Spring

A:Multi-angle suction device

B: liquid

θ: rotation angle

Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is a perspective view of the first part of the preferred embodiment of the present invention.

Figure 3 is a perspective view of the second part of the preferred embodiment of the present invention.

Figure 4a is a cross-sectional view of a preferred embodiment of the present invention.

Figure 4b is a cross-sectional view of the first step of the preferred embodiment of the present invention.

Figure 5a is a cross-sectional view of the first state of the preferred embodiment of the present invention.

Figure 5b is a cross-sectional view of the second state of the preferred embodiment of the present invention.

Figure 6 is a schematic diagram of the use of the preferred embodiment of the present invention.

Please refer to Figures 1 and 6, which are schematic diagrams of a preferred embodiment of the multi-angle suction device A of the present invention. The multi-angle suction device A includes a handle portion 10 located at a proximal end, and a handle portion 10 from the handle portion. 10. A drainage rod 20 extending toward a far end. The handle portion 10 includes at least one drainage channel and a switching mechanism 11. The drainage channel is fluidly connected to the drainage rod 20, and the switching mechanism 11 is used to control the drainage channel and /Or the drainage rod 20, so that the distal end of the drainage rod 20 can selectively perform the act of suctioning or expelling a liquid B.

The present invention is not limited to the shape or form of the drainage channel and the switching mechanism 11. The switching mechanism 11 can be a rotary knob or a button, with the switching position located in the handle portion 10 and connected with the drainage channel. A motor is connected to the channel to change a pressure provided to the drainage rod 20 and achieve the selective suction or elimination behavior of the drainage rod 20.

In this embodiment, the switching mechanism 11 includes two button keys 111, and the two button keys 111 are respectively used to selectively conduct a first drainage channel and a second drainage channel located in the handle portion 10. , and the first drainage channel and the second drainage channel are in fluid communication with the drainage rod 20 . The manner in which the first drainage channel and the second drainage channel are in fluid communication with the drainage rod 20 will be described in detail in subsequent paragraphs. Wherein, the proximal end of the first drainage channel is connected to a vacuum device. When the first drainage channel is turned on through one of the button keys 111, the drainage rod 20 exhibits a suction behavior; and the second drainage channel proximal and one The perfusion device is connected, and when the second drainage channel is turned on through another button 111, the drainage rod 20 displays the behavior of draining the liquid B.

Next, please refer to FIGS. 2 and 3 , a rotating mechanism 30 is disposed between the handle portion 10 and the drainage rod 20 , and the rotating mechanism 30 is fluidly connected to the drainage channel of the handle portion 10 and the drainage rod. 20. The rotating mechanism 30 includes a first component 31, a second component 32 and a locking component 33. Among them, the first component 31 and the second component 32 are rotatably combined with an axis as a reference, and the first component 31 and the second component 32 jointly define the handle portion 10 after being combined. The drainage channel and the drainage rod 20 are in fluid communication with a conductive chamber 34 . The locking piece 33 is used to selectively engage with the first component 31 or the second component 32 to lock or release the rotational relationship between the first component 31 and the second component 32 .

The rotation mechanism 30 is not limited to its combination relationship with the handle portion 10 or the drainage rod 20. For example, the two ends of the rotation mechanism 30 are detachably assembled and connected with the handle portion 10 and the drainage rod 20, respectively. Alternatively, the rotating mechanism 30 is integrally assembled with at least one of the handle 10 or the drainage rod 20 . In this embodiment, the first component 31 and the second component 32 are integrally assembled with the handle part 10 and the drainage rod 20 respectively, and the locking member 33 is movably provided on the handle part 10, and The locking engagement with the second component 32 can be selected. The engagement relationship between the locking member 33 and the second component 32 will be described in detail later.

In the rotating mechanism 30 , the rotatable combination method between the first component 31 and the second component 32 is not limited. Preferably, a concave-convex fitting relationship can be used between the first component 31 and the second component 32. The first component 31 and the second component 32 can respectively form an annular groove and an annular groove based on the axis. The protrusion displaces along the annular groove so that the first component 31 can rotate relative to the second component 32 about the axis.

As further shown in FIG. 2 , the first component 31 is a cover, and a first cavity 311 is recessed on a first side 314 . The inner wall of the first chamber 311 is provided with at least one communicating hole. 313, so that the drainage channel can be in fluid communication with the first chamber 311 through the communication hole 313. This embodiment includes two communicating through holes 313 that are respectively connected with the first drainage channel or the second drainage channel.

A first annular wall 315 protrudes from the first side 314 with the axis as the center, and a rotating baffle 316 protrudes annularly in a radial direction from the outer wall of the first annular wall 315, and the rotating baffle 316 is connected to the axis. The first side 314 forms a gap. At least a part of the edge of the rotating baffle 316 is recessed with a notch 317 in the radial direction, so that the width of the rotating baffle 316 corresponding to the notch 317 is smaller than the width of other parts of the rotating baffle 316 .

As further shown in FIG. 3 , the second component 32 is a cover, and a second cavity 321 is recessed on a second side 324 . The second component 32 is arranged and combined with the second side 324 corresponding to the first side 314 , so that the first chamber 311 and the second chamber 321 jointly define the conduction chamber 34 . The inner wall of the second chamber 321 is provided with a through hole 323 connected to the drainage rod 20, so that the drainage channel (including the first drainage channel and the second drainage channel) can pass through the connecting hole 313, the drainage channel 20, and the drainage channel 20. The conductive chamber 34 (including the first chamber 311 and the second chamber 321 ) and the through hole 323 are in fluid communication with the drainage rod 20 .

A second annular wall 325 protrudes from the second side 324 with the axis as the center, and the inner diameter formed by the second annular wall 325 is slightly larger than the outer diameter formed by the first annular wall 315 . A rotating protrusion 326 protrudes radially from at least a portion of the inner wall of the second annular wall 325 , and the width of the rotating protrusion 326 is slightly smaller than a recess formed by the notch 317 recessed in the edge of the rotating baffle 316 Width.

In this way, when the second component 32 and the first component 31 are assembled, the second component 32 can use the rotating protrusion 326 to correspond to the notch 317, and enter the rotating baffle 316 and the first side through the notch 317. The gap formed by 314, at this time, the gap can be regarded as the annular groove, and the rotating protrusion 326 can be regarded as the protrusion. When the second component 32 is relative to the first component 31 When rotating with the axis as a reference, the rotation protrusion 326 is misaligned with the notch 317 , and its axial displacement is limited by the first side surface 314 and the rotation baffle 316 . In this way, the second component 32 can pass through the The first component 31 is rotatably coupled through the concave-convex matching relationship between the rotating protruding part 326 and the gap. When the second component 32 rotates relative to the first component 31, the second component 32 together with the drainage rod 20 rotates relative to the first component 31, so that the distal end of the drainage rod 20 is based on the axis. of pointing in multiple directions.

Preferably, the first side 314 of the first component 31 protrudes along a mandrel to form a first rotation axis 312, and the second side 324 of the second component 32 protrudes along the mandrel to form a second rotation axis. 322. When the first component 31 and the second component 32 are combined, the first rotating shaft 312 and the second rotating shaft 322 are rotatably connected to each other. For example, the second rotating shaft 322 is in the shape of a hollow rod, And its inner diameter is slightly larger than the outer diameter of the first rotating shaft 312. When the first component 31 and the second component 32 are combined, at least a part of the first rotating shaft 312 is inserted into the second rotating shaft 322, so that The first component 31 and the second component 32 can rotate based on the spindle and exhibit a more stable rotation relationship.

The second component 32 is recessed with at least two limiting grooves 327 on the surface of a ring side wall for operable engagement with the locking member 33 . Depending on the rotational position of the second component 32 relative to the first component 31, at least two of the limiting grooves 327 can be manipulated to correspond to or be misaligned with the position of the locking member 33.

When one of the limiting grooves 327 of the second component 32 corresponds to the locking piece 33, the locking piece 33 can selectively lock and engage with the limiting groove 327. When one of the limiting grooves 327 of the second component 32 and the locking piece 33 engage with each other, the extending direction of the drainage rod 20 is also locked relative to each other.

Furthermore, a rotation angle θ is formed between the two limiting grooves based on the spindle. When one of the limiting grooves 327 of the second component 32 corresponds to the locking member 33, the rotation angle θ needs to be rotated again. Only at the angle θ can the other limiting groove 327 be corresponding to the locking piece 33 .

Next, please refer to FIG. 4a and FIG. 4b . The handle portion 10 is provided with a slide groove 12 adjacent to the second component 32 , and the locking member 33 can move along the slide groove 12 . Both ends of the locking member 33 include an operating portion 331 and a tongue portion 332 respectively. When the locking member 33 is located in the slide groove 12, at least a part of the operating portion 331 protrudes from the surface of the handle portion 10, so that a user can pass through the operating portion 10. The operating portion 331 operates the relative position of the locking member 33 in the sliding groove 12 and allows the tab portion 332 to move closer or farther away from the second component 32 .

As shown in FIG. 4 b , when one of the limiting grooves 327 of the second component 32 is positioned corresponding to the locking member 33 , and the locking member 33 is displaced along the slide groove 12 to the position closest to the second component 32 , the tab portion 332 can penetrate into the corresponding limiting groove 327 and engage with each other, so that the second component 32 can be fixed by the tab portion 332 to avoid unnecessary rotation relative to the first component 31 .

Furthermore, the second component 32 may be provided with a plurality of limiting grooves 327 on the surface of the ring side wall as required. With reference to the contents of Figure 5a and Figure 5b, in this embodiment, the rotation angle θ formed between the two limiting grooves based on the mandrel is 70 degrees. In this way, it is necessary to rotate the second component 32 clockwise or counterclockwise 70 degrees relative to the first component 31 to convert one of the limiting grooves 327 corresponding to the locking member 33 into another limiting groove 327 . The slot 327 corresponds to the locking piece 33 .

Preferably, a spring 35 is provided to give the locking member 33 a biasing force against the second component 32, so that when the locking member 33 corresponds to one of the limiting grooves 327, it can automatically move according to the biasing force. The displacement causes the latch portion 332 to lock and engage with one of the limiting grooves 327 . The user does not need to repeatedly confirm whether the multi-angle suction device A has been locked, so that the overall application can be more convenient and intuitive.

Referring further to FIG. 6 , when the present invention is used, in addition to the relative selection characteristics of the first component 31 and the second component 32 , the drainage rod 20 can have characteristics that change in multiple extending directions according to needs. In the conduction chamber 34 formed by the first component 31 and the second component 32, due to the combined arrangement of the first rotating shaft 312 and the second rotating shaft 322, the combined first rotating shaft 312 and the second rotating shaft 322 can further produce the effect of diverting liquid in the conduction chamber 34 .

When current suction devices are used to aspirate or exclude (especially suction) the liquid B, the liquid B often contains tissues or blood clots of inconsistent sizes and irregular shapes, which can easily lead to tissue or blood clots being aspirated. Accumulation and obstruction in the device make the current suction device less durable and prone to use. inconvenience. When the multi-angle suction device provided by the present invention is used to suck or exclude the liquid B, the liquid B will cause a divergence phenomenon in the conductive cavity due to the combined first rotating shaft 312 and the second rotating shaft 322. The two sides of chamber 34 flow. In this way, the effect of diverting liquid can be used to reduce or even avoid complete blockage. For example, when only one side of the conduction chamber 34 is blocked, the other side of the conduction chamber 34 can be maintained. At the same time, continue to operate the switching mechanism and provide the pressure (generating suction or exhaust), and the blockage can be gradually removed by continuously providing the pressure.

10: Handlebar

11:Switch mechanism

111:Button key

12:Chute

20: Drainage rod

30: Rotating mechanism

32:Second component

33: Locking piece

A:Multi-angle suction device

θ: rotation angle

Claims (8)

A multi-angle suction device includes a handle portion located at a proximal end, and a hollow rod-shaped drainage rod extending from the handle portion toward a distal end. The handle portion includes a drainage rod connected to the drainage rod. The drainage channel and a switching mechanism are used to control the drainage channel or the drainage rod to perform suction or discharge of a liquid, wherein: a rotating mechanism is disposed between the handle and the drainage rod, and the fluid is connected to the drainage channel. The drainage channel and the drainage rod include: a first component, and a second component rotatably combined with the first component based on an axis, and the first component and the second component jointly define a connected The drainage channel and a conductive chamber of the drainage rod; and a locking member selectively engages with the locking of the first component or the second component to lock or release the gap between the first component and the second component. Rotational relationship, wherein when the second component rotates relative to the first component, the drainage rod changes the extension direction of its distal end according to a rotation angle, wherein: the first component is recessed with a first cavity on a first side chamber, the inner wall of the first chamber is provided with a connecting hole connected to the drainage channel, a first annular wall protrudes from the first side with the axis as the center, and the outer wall of the first annular wall A rotating baffle protrudes radially in an annular shape, and a gap is formed between the rotating baffle and the first side. At least a part of the edge of the rotating baffle is radially recessed with a notch; and the second component is located at A second chamber is recessed on a second side. The inner wall of the second chamber is provided with a through hole to communicate with the drainage rod. A second annular wall protrudes from the second side with the axis as the center. , the inner diameter of the second annular wall is slightly larger than the outer diameter of the first annular wall, at least a part of the inner wall of the second annular wall has a rotating protrusion protruding radially, and the rotating protrusion The width is slightly smaller than the width of the notch recessed on the edge of the rotating baffle, where: When the second component is combined with the first component, the second side corresponds to the first side, and the rotating protruding piece enters the gap formed by the rotating baffle and the first side corresponding to the notch, and the first The chamber and the second chamber together form the conductive chamber; and when the second component rotates relative to the first component with the axis as the reference, the rotating protrusion displaces along the gap and is affected by the first side surface. And the limited displacement in the axis direction of the rotating baffle. The multi-angle suction device as claimed in claim 1, wherein: the first component is integrally assembled with the handle; the second component is connected to the drainage rod; and the locking member is movably provided on the The handle portion is optionally locked and engaged with the second component. The multi-angle suction device as claimed in claim 2, wherein: the handle portion is provided with a slide groove adjacent to the second component, and the locking member is movably displaceable along the slide groove; the second component is mounted on a ring side wall At least two limiting grooves are recessed on the surface, and according to the rotation position of the second component relative to the first component, at least two of the limiting grooves are controllable to correspond to or misalign the position of the locking member; and the locking member It includes an operating part, at least a part of the operating part protrudes from the slide groove and the surface of the handle part, and a tongue part approaches or moves away from the second component according to the displacement of the locking member along the slide groove, wherein , when one of the limiting grooves of the second component corresponds to the locking piece and the locking piece is displaced to the position closest to the second component, the tab portion goes deep into the limiting groove and fixes the second component. As for the multi-angle suction device of claim 3, the second component is recessed with two limiting grooves on the surface of the ring side wall, and a rotation axis is formed between the two limiting grooves based on a spindle. angle. As for the multi-angle suction device described in claim 4, the rotation angle is 70 degrees. As in the multi-angle suction device of claim 3, a spring gives the locking member a biasing force to abut against the second component. When the locking member corresponds to one of the limiting grooves, the tongue portion presses the The biasing force is locked and engaged with one of the limiting grooves. The multi-angle suction device as claimed in any one of claims 1 to 6, wherein: the first side of the first component protrudes along the spindle with a first rotating shaft; the second side of the second component protrudes along the spindle. A second rotating shaft in the shape of a hollow rod protrudes from the mandrel. When the first component is combined with the second component, at least a part of the first rotating shaft is inserted into the second rotating shaft and is connected with the second rotating shaft. The rotating shafts are rotatably connected to each other. The multi-angle suction device as claimed in claim 7, wherein: the handle portion includes a first drainage channel and a second drainage channel; the inner wall of the first chamber of the first component is provided with two The communication through holes are respectively connected with the first drainage channel and the second drainage channel; and the switching mechanism includes two button keys for selectively closing and conducting the first drainage channel and the second drainage channel respectively. .

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