CN217041036U

CN217041036U - Sheath pipe

Info

Publication number: CN217041036U
Application number: CN202123418608.0U
Authority: CN
Inventors: 李勇; 刘奎
Original assignee: Lifetech Scientific Shenzhen Co Ltd
Current assignee: Lifetech Scientific Shenzhen Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-26
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a sheath pipe, the sheath pipe includes sheath pipe subassembly and handle assembly, handle assembly includes the handle casing, the inside chamber of acceping that is provided with of handle casing, the near-end of sheath pipe subassembly is acceptd accept the intracavity, the distal end of sheath pipe subassembly is outstanding the distal end of handle casing, be provided with at least one air inlet on the handle casing, the air inlet runs through the inside and outside wall of handle casing. The external blowing device can blow air into the handle assembly through the air inlet so as to achieve the effect of quickly drying the handle assembly. Simultaneously, the setting up of air inlet makes handle components's stoving is more convenient and fast, need not to unpack apart handle components, alright handle components's inside is dried.

Description

Sheath pipe

Technical Field

The utility model relates to an intervene medical field, concretely relates to sheath pipe.

Background

The medical sheath has been widely applied to various minimally invasive interventional diagnosis and treatment operations, and can be used for channel establishment, medical instrument delivery or recovery, drug input or body fluid export.

The sheath pipe needs to use the injection water to wash in the assembling process, if the stoving is abundant inadequately, remaining liquid breeds the bacterium easily, leads to the handle of sheath pipe to suffer to pollute. And because the assembled sheath tube handle is inconvenient to disassemble, the handle is also inconvenient to dry again. Therefore, the handle of the existing sheath tube is inconvenient to dry, the drying result is not ideal, and the drying time is long. Therefore, a sheath tube convenient for drying the handle is needed to be designed.

SUMMERY OF THE UTILITY MODEL

For overcoming the problems existing in the prior art, the utility model provides a sheath tube.

The utility model provides a scheme for solving the technical problem provides a sheath pipe, the sheath pipe includes sheath pipe subassembly and handle components, handle components includes the handle casing, the inside chamber of acceping that is provided with of handle casing, the near-end of sheath pipe subassembly is acceptd accept the intracavity, the distal end of sheath pipe subassembly is outstanding the distal end of handle casing, be provided with at least one air inlet on the handle casing, the air inlet runs through the inside and outside wall of handle casing.

In some embodiments of the present invention, the handle assembly further comprises a connecting portion connected to the proximal end of the handle housing, the proximal end of the sheath assembly being connected to the connecting portion; the lumen of the sheath assembly is communicated with the outside through the connecting part.

In some embodiments of the present invention, the air inlet is disposed at one side of the handle housing close to the connecting portion.

In some embodiments of the present invention, the at least one air inlet includes two air inlets, two of the air inlets are disposed on the handle housing with a longitudinal central axis of the handle housing as a symmetry axis.

In some embodiments of the present invention, the air inlet is provided on a side wall surface of the handle case, the end portion of the air inlet close to the inner wall surface of the handle case includes a frustum structure.

In some embodiments of the present invention, the diameter of the frustum structure gradually increases along the direction from the outer surface to the inner surface of the handle housing.

In some embodiments of the present invention, the sheath further comprises a bend adjustment assembly for adjusting a bend of the distal end portion of the sheath assembly.

In some embodiments of the present invention, the bending adjusting component includes a bending member and a bending adjusting mechanism connected to the handle casing, the bending member has a proximal end connected to the bending adjusting mechanism, and the bending member has a distal end connected to the distal end of the sheath assembly.

In some embodiments of the utility model, the turn round mechanism include with the handle casing link to each other turn round the handle and accept in turn round in the handle and can be relative turn round the gliding slider of handle, the near-end of the piece of buckling with the slider links to each other, the slider motion drives the piece motion of buckling.

The utility model discloses an in some embodiments, be provided with the slide rail in the accent curved handle, the accent curved handle internal face is provided with the internal thread, be provided with the external screw thread on the slider, the external screw thread of slider with the internal connection of accent curved handle rotates the accent curved handle can order about the slider is in remove in the slide rail.

Compared with the prior art, the utility model discloses a sheath pipe has following advantage:

the handle assembly is provided with at least one air inlet which is communicated with the inner surface and the outer surface of the handle assembly, and an external blowing device can blow air into the handle assembly through the air inlet so as to achieve the effect of quickly drying the handle assembly. Simultaneously, the setting up of air inlet makes handle components's stoving is more convenient and fast, need not to unpack apart handle components, alright handle components's inside is dried.

Drawings

Fig. 1 is a schematic perspective view of a sheath according to a first embodiment of the present invention.

Fig. 2 is an exploded view of the handle assembly and the connecting rod of the sheath according to the first embodiment of the present invention.

Fig. 3 is a schematic sectional view of the sheath tube according to the first embodiment of the present invention along the direction a-a in fig. 1.

Fig. 4 is a schematic cross-sectional view of a sheath assembly of a sheath according to a first embodiment of the present invention.

Fig. 5 is an enlarged view at C in fig. 4.

Fig. 6 is an exploded view of the sheath according to the first embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of the sheath tube according to the second embodiment of the present invention along the direction B-B in fig. 1.

Fig. 8 is a schematic cross-sectional view of the sheath tube according to the third embodiment of the present invention along the direction B-B in fig. 1.

Fig. 9 is an enlarged view at D in fig. 8.

Description of the figures: 100. a sheath tube; 1. a sheath assembly; 2. a handle assembly; 3. a bending adjusting component; 11. a lumen; 21. an air inlet; 22. a handle housing; 23. a connecting portion; 24. a frustum structure; 221. an accommodating cavity; 31. a bending adjusting mechanism; 32. a connecting rod; 33. bending the piece; 34. a slider; 311. bending a handle; 312. a slider; 313. an accommodating cavity; 314. a slide rail; 34. a fixing member; 35. a locking cover; 200. a sheath tube; 300. a sheath tube.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an up and down orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the field of interventional medical devices, the "distal end" is defined as the end that is distal from the operator during the procedure, and the "proximal end" is defined as the end that is proximal to the operator during the procedure. "axial" refers to a direction parallel to the line joining the centers of the distal and proximal ends of the medical device, and "radial" refers to a direction perpendicular to the axial direction.

Referring to fig. 1, a first embodiment of the present invention provides a sheath tube 100, where the sheath tube 100 includes a sheath tube assembly 1, a handle assembly 2 and a bending adjustment assembly 3, a proximal end of the sheath tube assembly 1 passes through an inside of the handle assembly 2 and is connected to a proximal end of the handle assembly 2, and the bending adjustment assembly 3 is connected to the handle assembly 2. The handle assembly 2 is used for fixing the sheath assembly 1 and the bending adjustment assembly 3, and can provide a handheld part for a user to hold the sheath 100. The bending adjusting component 3 can adjust the distal end of the sheath tube component 1, so that the sheath tube component 1 is adapted to a bent vascular system, and the sheath tube component 1 can quickly and accurately reach a specified position. In another embodiment, the sheath may be a non-bending sheath, and specifically, the sheath may not include the bending adjusting component 3, and at this time, the distal end of the sheath may not be bent.

Referring to fig. 2, the handle assembly 2 includes a handle housing 22, a receiving cavity 221 is formed inside the handle housing 22, the proximal end of the sheath assembly 1 is received in the receiving cavity 221, at least one air inlet 21 is formed on the handle housing 22, and the air inlet 21 penetrates through the inner and outer walls of the handle housing 22, so that the exterior of the handle housing 22 is communicated with the receiving cavity 221.

The sheath 100 needs to be cleaned by injection water in the assembling process, and if the cleaned sheath 100 is not dried in time or is not sufficiently dried, residual liquid is left in the sheath, and bacteria are easily bred in the residual liquid. Because the equipment handle component 2 is not convenient for dismantle, and is in comparatively confined state, if need further dry after handle component 2 is assembled, it is direct right the effect that handle component 2 dried is not good, and right it will bring a great deal of inconvenience to dry again after handle component 2 is dismantled. At least one air inlet 21 is provided on the handle housing 22, and an external blowing device can blow air into the receiving cavity 221 of the handle housing 22 through the air inlet 21, so as to achieve the effect of rapidly drying the interior of the handle housing 22. Simultaneously, the setting up of air inlet 21 makes handle component 2's stoving is convenient and fast more, need not to unpack apart handle component 2, alright it is right handle component 2's inside is dried.

It is understood that, in the first embodiment of the present invention, the air inlet 21 has a circular through hole structure, and in other embodiments of the present invention, the cross-sectional shape of the air inlet 21 may also be a triangle, a quadrangle, a rectangle, etc. In the case of a plurality of the air inlets 21, a part of the air inlets 21 may be configured as a circular through hole structure, and the rest of the air inlets 21 may be configured as a rectangular through hole structure.

Referring to fig. 2 and 3, the handle assembly 2 includes a connecting portion 23, the connecting portion 23 is connected to the proximal end of the handle housing 22, and the proximal end of the sheath assembly 1 is connected to the connecting portion 23 through the receiving cavity 221; the sheath tube component 1 is internally provided with a tube cavity 11, and the tube cavity 11 is communicated with the outside through the connecting part 23. The connecting portion 23 allows a guide wire to pass directly into the lumen 11. The air inlet 21 is provided on a side of the handle case 22 close to the connecting portion 23.

In the first embodiment of the present invention, the connection portion 23 is connected to the handle casing 22 in a sealing manner, the sheath assembly 1 is connected to the connection portion 23 in a sealing manner, and the glue is generally used to seal the gap between the sheath assembly 1 and the connection portion 23, and the connection portion 23 is sealed to the gap between the handle casing 22, so that the distal end of the handle casing 22 is in a sealing state, the accommodating cavity 221 is not communicated with the lumen 11. Because after the connecting portion 23 and the handle casing 22 are connected, the connecting portion 23 and the handle casing 22 are in a sealed state, and a gap exists between the sheath tube assembly 1 and the distal end of the handle casing 22, the air inlet 21 is disposed on one side of the handle casing 22 close to the connecting portion 23, so that the air blown in from the air inlet 21 is blown from one side of the handle casing 22 close to the connecting portion 23 to one side of the handle casing 22 close to the sheath tube assembly 1, that is, from one sealed end to one end having the gap, so that the air flow can intensively and quickly pass through the inside of the handle casing 22, and finally blown out from the gap, so that the drying efficiency of the handle casing 22 is maximized.

In other embodiments of the present invention, the air inlet 21 may also be disposed in the middle of the handle housing 22, or the position of the air inlet 21 on the handle housing 22 may be adaptively adjusted according to actual use requirements.

With reference to fig. 3-5, in the first embodiment of the present invention, the bending adjusting component 3 is disposed on a side of the handle component 2, the bending adjusting component 3 includes a bending adjusting mechanism 31, a connecting rod 32 and a bending member 33, one end of the connecting rod 32 is connected to the handle housing 22, and the other end of the connecting rod 32 is connected to the bending adjusting mechanism 31. The near end of the bending piece 33 is connected with the bending adjusting mechanism 31, and the far end of the bending piece 33 sequentially passes through the connecting rod 32 and the handle shell 22 and is connected with the far end of the tube cavity 11. Further, the bend adjustment assembly 3 further comprises a fixing member 34, the fixing member 34 is disposed at the distal end of the lumen 11, and the distal end of the bending member 33 is engaged with the fixing member 34.

The connecting rod 32 is used for connecting the handle housing 22 and the bending adjusting mechanism 31, and the connecting rod 32 can play a role in fixing the bending adjusting mechanism 31. The bending adjusting mechanism 31 can rotate relative to the connecting rod 32, and the bending member 33 is driven to move by the rotation of the bending adjusting mechanism 31. The bending piece 33 is a linear structure, the far end of the bending piece 33 is sleeved on the fixing piece 34, the bending adjusting mechanism 31 moves to drive the far end of the bending piece 33 to be bent, and then the bending piece 33 is driven by the fixing piece 34 to be bent at the far end of the sheath tube component 1.

In other specific embodiments of the present invention, the bending adjusting component 3 may be disposed at the distal end of the handle component 2 and coaxial with the longitudinal central axis of the handle component 2, i.e., the sheath component 1 and between the handle components 2, the specific position of the bending adjusting component 3 may be disposed according to the actual use requirement adaptability.

Referring to fig. 3 and fig. 6, in the embodiment of the present invention, the bending adjusting mechanism 31 includes a bending adjusting handle 311 and a sliding part 312, one end of the bending adjusting handle 311 is connected to one end of the connecting rod 32 away from the handle assembly 2, an accommodating cavity 313 is provided in the bending adjusting handle 311, the sliding part 312 is disposed in the accommodating cavity 313, the sliding part 312 can slide in the accommodating cavity 313, the proximal end of the bending part 33 is connected to the sliding part 312, and the sliding part 312 moves to drive the bending part 33 to move. A slide rail 314 is arranged in the accommodating cavity 313, and the sliding element 312 is matched with the slide rail 314, that is, the sliding element 312 moves along the slide rail 314. The inner wall surface of the bending adjusting handle 311 is provided with an internal thread, the sliding member 312 is provided with an external thread, and the external thread of the sliding member 312 is connected with the internal thread on the inner wall surface of the bending adjusting handle 311, so that the bending adjusting handle 311 can rotate relative to the connecting rod 32, and the bending adjusting handle 311 can be rotated to drive the sliding member 312 to move in the sliding rail 314, and further drive the bending member 33 to move.

The sliding rail 314 and the sliding part 312 are both arranged in the accommodating cavity 313, the sliding rail 314 is fixedly arranged in the accommodating cavity 313, when the external thread of the sliding part 312 is matched with the internal thread of the bending adjusting mechanism 31, the bending adjusting handle 311 is rotated to enable the sliding part 312 to move on the sliding rail 314, and the sliding part 312 moves to drive the bending part 33 to bend, so that the distal end of the sheath tube assembly 1 is bent.

Because the bending adjusting handle 311 is in threaded connection with the sliding part 312, in order to ensure that the bending adjusting handle 311 does not generate axial displacement when rotating, one end of the bending adjusting component 3, which is far away from the handle component 2, is provided with a locking cover 35, namely, the bending adjusting handle 311 is arranged between the locking cover 35 and the connecting rod 32. Through locking lid 35 with the connecting rod 32 is then right the accent curved handle 311 is spacing, prevents the accent curved handle takes place axial displacement. Meanwhile, the two ends of the sliding rail 314 are respectively connected with the connecting rod 32 and the locking cover 35, and the locking cover 35 and the connecting rod 32 can support and fix the sliding rail 314.

As some modified embodiments, the internal thread of the bending adjustment handle 311 and the external thread of the sliding member 312 may be omitted, and the sliding member 312 is exposed from the bending adjustment handle 311. When the sheath tube assembly is used, the sliding part 312 can be directly slid to drive the bending part 33 to bend, so that the distal end of the sheath tube assembly 1 is bent.

Referring to fig. 7, a sheath 200 according to a second embodiment of the present invention is provided, and the sheath 200 according to the second embodiment is different from the sheath 100 according to the first embodiment in that: the number of the air inlets 21 is two, and the two air inlets 21 are oppositely arranged on the handle shell 22 by taking the longitudinal central axis of the handle shell 22 as a symmetry axis. The two air inlets 21 arranged oppositely enable the air blown into the handle shell 22 to generate convection, so that the air quantity flowing through the handle shell 22 in unit time is increased, and the drying speed and the drying effect of the handle shell 22 are improved.

As some modified examples, an air inlet 21 is provided on a wall surface of the handle housing 22, an air outlet is provided at a position opposite to the air inlet 21, and an external blowing device blows air from the air inlet 21, and the air can be blown out from the air outlet, so that the flowing speed of the air in the handle housing 22 is increased, and the drying speed and the drying effect of the handle housing 22 are improved.

As some modified examples, the number of the air inlets 21 may be increased or decreased according to actual use conditions, and specifically, the number of the air inlets 21 may be 1, 3, 4, 5, 6, or the like. The plurality of air inlets 21 may be disposed opposite to each other, or disposed parallel to each other, or disposed at a certain angle to each other.

Referring to fig. 8 and 9, a third embodiment of the present invention provides a sheath 300, and the sheath 300 of the third embodiment is different from the sheath 100 of the first embodiment and the sheath 200 of the second embodiment in that: the end of the air inlet 21 close to the inner wall of the handle housing 22 includes a frustum structure 24, and the diameter of the frustum structure 24 gradually increases along the direction from the outer wall to the inner wall of the handle housing 22. That is, the diameter of the air inlet 21 at the end close to the inner wall surface of the handle case 22 is larger than the diameter of the air inlet 21 at the end close to the outer wall surface of the handle case 22. The arrangement of the frustum structure 24 enables wind to be diffused after entering the air inlet 21, so that the wind can blow more area inside the handle shell 22, and further, the drying speed of the handle assembly 2 is increased.

As some modified examples, the air inlet 21 may be directly provided as a frustum structure, so that the diameter of the air inlet 21 is gradually increased along the direction from the outer wall surface to the inner wall surface of the handle housing 22.

1. the handle assembly is provided with at least one air inlet which is communicated with the inner surface and the outer surface of the handle assembly, and an external blowing device can blow air into the handle assembly through the air inlet so as to achieve the effect of quickly drying the handle assembly. Simultaneously, the setting up of air inlet makes handle components's stoving is convenient and fast more, need not to unpack apart handle components alright it is right handle components's inside is dried.

2. The air inlet sets up the handle casing is close to one side of connecting portion for follow the wind that the air inlet blew by the handle casing is close to one side of connecting portion is blown to the handle casing is close to one side of sheath subassembly, so that the drying efficiency of handle casing reaches the highest.

3. The number of the air inlets may be set to at least two, and the two air inlets are oppositely disposed on the side surface of the handle housing. The two oppositely arranged air inlets enable air blown into the interior of the handle assembly to generate convection, so that the air quantity flowing through the interior of the handle assembly in unit time is increased, and further the drying speed and the drying effect of the handle shell are improved.

4. The arrangement of the frustum structure enables wind to be diffused after entering the air inlet, so that the wind can blow more area inside the handle shell, and the drying speed of the handle assembly is accelerated.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement and improvement made within the principle of the present invention should be included within the scope of the present invention.

Claims

1. A sheath, characterized in that: the sheath pipe includes sheath pipe subassembly and handle assembly, handle assembly includes the handle casing, the inside chamber of acceping that is provided with of handle casing, the near-end of sheath pipe subassembly is acceptd accept the intracavity, the distal end of sheath pipe subassembly is outstanding the distal end of handle casing, be provided with at least one air inlet on the handle casing, the air inlet runs through the inside and outside wall of handle casing.

2. The sheath of claim 1, wherein: the handle assembly further comprises a connecting part, the connecting part is connected with the near end of the handle shell, and the near end of the sheath tube assembly is connected with the connecting part; the lumen of the sheath tube assembly is communicated with the outside through the connecting part.

3. The sheath of claim 2, wherein: the air inlet is arranged on one side of the handle shell close to the connecting part.

4. The sheath of claim 2, wherein: the at least one air inlet comprises two air inlets, and the two air inlets are oppositely arranged on the handle shell by taking the longitudinal central axis of the handle shell as a symmetry axis.

5. The sheath of claim 2, wherein: the air inlet is arranged on the side wall surface of the handle shell, and the end part, close to the inner wall surface of the handle shell, of the air inlet comprises a frustum structure.

6. The sheath of claim 5, wherein: the diameter of the frustum structure is gradually increased along the direction from the outer surface to the inner surface of the handle shell.

7. The sheath of claim 1, wherein: the sheath further comprises a bend adjustment assembly for adjusting the bend of the distal end portion of the sheath assembly.

8. The sheath of claim 7, wherein: the bending adjusting assembly comprises a bending piece and a bending adjusting mechanism connected with the handle shell, the near end of the bending piece is connected with the bending adjusting mechanism, and the far end of the bending piece is connected with the far end of the sheath tube assembly.

9. The sheath of claim 8, wherein: the bending adjusting mechanism comprises a bending adjusting handle connected with the handle shell and a sliding piece contained in the bending adjusting handle and capable of sliding relative to the bending adjusting handle, the near end of the bending piece is connected with the sliding piece, and the sliding piece moves to drive the bending piece to move.

10. The sheath of claim 9, wherein: the bending adjusting device is characterized in that a sliding rail is arranged in the bending adjusting handle, an internal thread is arranged on the inner wall surface of the bending adjusting handle, an external thread is arranged on the sliding piece, the external thread of the sliding piece is connected with the internal thread of the bending adjusting handle, and the bending adjusting handle is rotated to drive the sliding piece to move in the sliding rail.