CN219661757U - Adjusting component and control handle - Google Patents
Adjusting component and control handle Download PDFInfo
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- CN219661757U CN219661757U CN202320545372.7U CN202320545372U CN219661757U CN 219661757 U CN219661757 U CN 219661757U CN 202320545372 U CN202320545372 U CN 202320545372U CN 219661757 U CN219661757 U CN 219661757U
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- inner ring
- ring portion
- catheter
- adjustment assembly
- traction wire
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- 238000004804 winding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of medical equipment, and discloses an adjusting component and a control handle, wherein the adjusting component is used for controlling the handle, the control handle is used for controlling a catheter, the catheter is provided with a first traction wire and a second traction wire which are oppositely arranged relative to the axis of the catheter, and the adjusting component comprises: the fixing piece is provided with a groove; the rotating piece is used for being connected with the first traction wire and the second traction wire, and comprises an inner ring part and an outer ring part, wherein the inner ring part is arranged in the groove and can rotate in the groove; the two elastic pieces are located between the inner ring portion and the outer ring portion, the elastic pieces are provided with a first end and a second end, the first end is connected with the fixing piece, the second end is connected with the rotating piece, and the elastic force applied to the rotating piece by the two elastic pieces is opposite to the elastic force applied to the rotating piece along the circumferential direction of the inner ring portion. The adjusting component provided by the utility model can enhance the straightening capability and rebound capability of the catheter and avoid the larger change of the zero position of the catheter after rebound.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an adjusting assembly and a control handle.
Background
In the use process of imaging catheters such as ultrasonic catheters, a control handle with an adjusting component is often needed to control the posture of the catheter in the human body, and the specific method is that a rotating piece in the adjusting component is rotated to drive a traction wire arranged in the wall of the catheter, so that the end part of the catheter is bent in different directions.
Because the pipe body of the traditional catheter mostly adopts a high polymer material as a base material, the straightening capability and the rebound capability of the catheter are weakened after the catheter is used for many times, and then the zero point position (namely the position where the catheter is not bent in any direction) of the catheter after rebound is changed, so that the catheter is in a virtual position in the use process, and the normal use of the catheter is affected.
Disclosure of Invention
The utility model provides an adjusting component and a control handle, which can enhance the straightening capability and rebound capability of a catheter and avoid the occurrence of larger change of the zero position after the catheter rebounds.
In a first aspect, embodiments of the present utility model provide an adjustment assembly for a control handle for controlling a catheter provided with a first pull wire and a second pull wire disposed opposite with respect to an axis of the catheter, the adjustment assembly comprising:
the fixing piece is provided with a groove;
the rotating piece is used for being connected with the first traction wire and the second traction wire, and comprises an inner ring part and an outer ring part which are connected with each other, the outer ring part is sleeved on the inner ring part, and the inner ring part is arranged in the groove and can rotate around the axis of the inner ring part in the groove;
the two elastic pieces are located between the inner ring portion and the outer ring portion, the elastic pieces are provided with a first end and a second end, the first end is connected with the fixing piece, the second end is connected with the rotating piece, and elastic forces applied to the rotating piece by the two elastic pieces are all along the circumferential direction of the inner ring portion and opposite in direction.
In some embodiments, the fixing member includes a first protruding portion located between the inner ring portion and the outer ring portion, the two elastic members are located on both sides of the first protruding portion in a circumferential direction of the inner ring portion, and the first end is connected to the first protruding portion.
In some of these embodiments, the second end and the first projection are disposed axisymmetrically about an axis of the inner ring portion.
In some embodiments, the inner ring portion abuts against a bottom wall of the groove to limit the movement of the fixing member in a direction approaching the rotating member.
In some of these embodiments, the rotating member further includes a second projection located between the inner ring portion and the outer ring portion, the second end being connected to the second projection.
In some of these embodiments, the elastic element is provided as a spring or as elastic rubber.
In some embodiments, the adjusting assembly further comprises a holding member, the fixing member and the inner ring part are sequentially sleeved on the holding member, and the inner ring part can rotate around the axis of the inner ring part.
In some embodiments, the fixing member is provided with a through hole extending along the axial direction of the inner ring portion, an inner hole wall of the through hole is provided with a limiting portion, the holding member is provided with a matching portion, the limiting portion is slidably connected with the matching portion and limits the fixing member to rotate around the axis of the inner ring portion, and the relative sliding direction of the limiting portion and the matching portion is parallel to the axial direction of the inner ring portion.
In some embodiments, the rotating member is provided with a winding post, and the first traction wire and the second traction wire are both wound around the winding post.
In a second aspect, embodiments of the present utility model provide a control handle comprising an adjustment assembly as described in the first aspect.
The adjusting component provided by the embodiment of the utility model has the beneficial effects that: because the rotating member is used for being connected with the first traction wire and the second traction wire which are oppositely arranged relative to the axis of the catheter, the inner ring part of the rotating member is arranged in the groove and can rotate around the axis of the inner ring part in the groove, two elastic members are arranged between the inner ring part and the outer ring part, the first ends of the elastic members are connected with the fixing member, the second ends of the elastic members are connected with the rotating member, the elastic force applied by the two elastic members to the rotating member is along the circumferential direction of the inner ring part and opposite in direction, when the inner ring part rotates around the axis of the inner ring part, one elastic member is further compressed, the other elastic member is elongated, the end part of the first traction wire can be bent towards the direction of one side of the first traction wire, and when the catheter can bounce, the two elastic members can apply the opposite force to the rotating direction of the inner ring part, so that the inner ring part can reciprocate in the groove, the end part of the second traction wire can pull the direction of the second traction wire, and then the catheter can rebound rapidly along the direction of one side of the inner ring part, so that the catheter rebound can be enhanced, the rebound capability of the catheter and the rebound capability of the two elastic members can be prevented from being changed accurately in the zero point position in the opposite direction of the catheter after the elastic ring.
Compared with the prior art, the control handle provided by the utility model has the beneficial effects compared with the prior art, which are the same as those of the adjusting assembly provided by the utility model, and are not repeated here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the control handle and catheter configuration of one embodiment of the present utility model;
FIG. 2 is a schematic view of the adjustment assembly in the control handle shown in FIG. 1;
FIG. 3 is an enlarged partial view of portion A of the adjustment assembly shown in FIG. 2;
FIG. 4 is a cross-sectional view of the control handle of FIG. 2 taken through and parallel to the axis of the inner ring portion;
FIG. 5 is a cross-sectional view of the control handle shown in FIG. 2 taken through and perpendicular to the axis of the inner ring portion;
fig. 6 is an enlarged partial view of a portion B of the adjustment assembly shown in fig. 4.
The meaning of the labels in the figures is:
100. a control handle; 10. an adjustment assembly; 11. a fixing member; 111. a groove; 112. a first projection; 113. a through hole; 114. a limit part; 12. a rotating member; 121. an inner ring portion; 122. an outer ring portion; 123. a connection part; 124. a winding post; 125. a second projection; 13. an elastic member; 14. a grip; 141. a cover body; 142. a spool; 143. a mating portion; 15. a wire wheel; 20. a knob; 30. a top cover; 200. a catheter.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In order to describe the technical scheme of the utility model, the following description is made with reference to specific drawings and embodiments.
Referring to fig. 1 and 2, in a first aspect, an adjusting assembly 10 is provided for controlling a handle 100, the handle 100 is used for controlling a catheter 200, the catheter 200 is provided with a first traction wire (not shown) and a second traction wire (not shown) which are oppositely arranged with respect to an axis of the catheter 200, and the adjusting assembly 10 comprises a fixing member 11, a rotating member 12 and two elastic members 13.
It is understood that both the first and second pull wires may be disposed within the wall of the catheter 200.
Referring to fig. 3 and 4 together, the fixing member 11 is provided with a groove 111, the rotating member 12 is used for being connected with the first traction wire and the second traction wire, the rotating member 12 includes an inner ring portion 121 and an outer ring portion 122 connected with each other, the outer ring portion 122 is sleeved on the inner ring portion 121, and the inner ring portion 121 is disposed in the groove 111 and can rotate around the axis of the inner ring portion 121 in the groove 111.
It will be appreciated that when the rotating member 12 is rotated about the axis of the inner ring portion 121 in the groove 111, the rotating member 12 pulls the first traction wire or the second traction wire, so as to bend the end of the catheter 200 away from the handle from the zero position to the direction of the side of the first traction wire or the direction of the side of the second traction wire, and when the rotating member 12 is rotated to the initial position, the catheter 200 is at the zero position.
Alternatively, the first traction wire and the second traction wire may be directly connected to the rotating member 12, for example, the first traction wire and the second traction wire are both connected to the outer ring portion 122, or the rotating member 12 is provided with a winding post 124, and the first traction wire and the second traction wire are both wound around the winding post 124.
Referring to fig. 6, the two elastic members 13 are located between the inner ring portion 121 and the outer ring portion 122, the elastic members 13 have a first end (not shown) and a second end (not shown), the first end is connected to the fixed member 11, the second end is connected to the rotating member 12, and elastic forces applied to the rotating member 12 by the two elastic members 13 are opposite to each other along the circumferential direction of the inner ring portion 121.
It will be appreciated that since the elastic forces applied to the rotating member 12 by the two elastic members 13 are opposite to each other along the circumferential direction of the inner ring portion 121, the inner ring portion 121 will be stabilized in the groove 111, so that the catheter 200 is more accurately located at the zero position.
It will be further appreciated that when the rotating member 12 is rotated about the axis of the inner ring portion 121 within the groove 111, one of the elastic members 13 is further compressed, the other elastic member 13 is stretched, the first traction wire pulls the end of the catheter 200 to bend in the direction of the side of the first traction wire, and when the catheter 200 rebounds, the inner ring portion 121 reciprocates within the groove 111, and the second traction wire pulls the end of the catheter 200 to bend in the direction of the side of the second traction wire, thereby facilitating rapid rebound of the catheter 200, and enhancing the straightening ability and rebound ability of the catheter 200, rather than simply using the rebound force of the catheter 200 itself to rebound the catheter 200.
Alternatively, the elastic member 13 may be provided as a spring or rubber having elasticity. In the present embodiment, the elastic member 13 is provided as a spring.
In the adjusting assembly 10 provided by the embodiment of the utility model, since the rotating member 12 is used for being connected with the first traction wire and the second traction wire which are oppositely arranged with respect to the axis of the catheter 200, the inner ring portion 121 of the rotating member 12 is arranged in the groove 111 and can rotate around the axis of the inner ring portion 121 in the groove 111, two elastic members 13 are arranged between the inner ring portion 121 and the outer ring portion 122, the first ends of the elastic members 13 are connected with the fixing member 11, the second ends of the elastic members 13 are connected with the rotating member 12, the elastic forces exerted by the two elastic members 13 on the rotating member 12 are opposite to each other along the circumferential direction of the inner ring portion 121, when the inner ring portion 121 is rotated around the axis of the inner ring portion 121, one of the elastic members 13 is further compressed, the other elastic member 13 is elongated, the end of the first traction wire can draw the conduit 200 to bend towards the direction of the side where the first traction wire is located, and when the conduit 200 can bounce, as the two elastic pieces 13 can apply a force opposite to the rotation direction of the inner ring 121 to the inner ring 121, the inner ring 121 can reciprocate in the groove 111, in the process, the end of the second traction wire can draw the conduit 200 to bend towards the direction of the side where the second traction wire is located, so that the conduit 200 can rebound rapidly, the rebound ability and rebound ability of the conduit 200 are enhanced, and after the conduit 200 rebounds, the inner ring 121 can be stabilized in the groove 111 under the action of the elastic force opposite to the two elastic pieces 13, so that the conduit 200 is positioned at a zero position accurately, and the zero position after the conduit 200 rebounds is prevented from being changed greatly.
The adjusting component 10 provided by the embodiment of the utility model can utilize the elastic potential energy of the elastic piece 13 to drive the catheter 200 to quickly return to the middle, so that the risk caused by the failure of the high polymer material is eliminated.
Optionally, the adjusting assembly 10 provided in the embodiment of the present utility model further includes a wire wheel 15, and the first traction wire and the second traction wire connected to the catheter 200 are connected to the rotating member 12 after being guided by the wire wheel 15.
Referring to fig. 2, 3, 5 and 6, in some embodiments, the fixing member 11 includes a first protruding portion 112 located between an inner ring portion 121 and an outer ring portion 122, two elastic members 13 are located at two sides of the first protruding portion 112 in the circumferential direction of the inner ring portion 121, and a first end is connected to the first protruding portion 112.
By adopting the above scheme, the elastic element 13 and the fixing element 11 are conveniently connected together, and the elastic force applied by the elastic element 13 to the rotating element 12 can be ensured along the circumferential direction of the inner ring part 121.
Alternatively, the second end and the first projecting portion 112 are symmetrically disposed about the axis 142 of the inner ring portion 121. By the arrangement, the second ends of the two elastic pieces 13 can be connected with the same part on the inner ring part 121, so that the structure is more compact, and the expansion range of the elastic pieces 13 is larger.
Optionally, the inner ring 121 abuts against the bottom wall of the groove 111 to limit the movement of the fixing member 11 in a direction approaching the rotating member 12. By this arrangement, the fixing member 11 is prevented from being moved in a direction approaching the rotating member 12.
Alternatively, the inner ring portion 121 and the outer ring portion 122 are connected by a connecting portion 123, and the elastic member 13 is located on a side of the connecting portion 123 near the fixing member 11.
Referring to fig. 2, 3 and 5, in some embodiments, the rotating member 12 further includes a second protruding portion 125 located between the inner ring portion 121 and the outer ring portion 122, and the second end is connected to the second protruding portion 125.
By adopting the above scheme, the elastic member 13 and the rotating member 12 are conveniently connected together, and the elastic force applied by the elastic member 13 to the rotating member 12 can be ensured along the circumferential direction of the inner ring portion 121.
Referring to fig. 1, 2 and 4, in some embodiments, the adjusting assembly 10 further includes a grip 14, the fixing member 11 and the inner ring portion 121 are sequentially sleeved on the grip 14, and the inner ring portion 121 can rotate around its own axis.
By adopting the above-described scheme, the fixing portion and the inner ring portion 121 are conveniently connected together.
Optionally, the fixing element 11 is provided with a through hole 113 extending along the axial direction of the inner ring portion 121, an inner hole wall of the through hole 113 is provided with a limiting portion 114, the holding element 14 is provided with a matching portion 143, the limiting portion 114 is slidably connected with the matching portion 143, and the fixing element 11 is limited to rotate around the axial line of the inner ring portion 121, and the relative sliding direction of the limiting portion 114 and the matching portion 143 is parallel to the axial direction of the inner ring portion 121. This arrangement allows the inner ring portion 121 to rotate about its own axis and also facilitates assembly of the fixed portion and inner ring portion 121 with the grip 14.
Wherein the limiting portion 114 is provided as a block, and the fitting portion 143 is provided as a groove extending in the axial direction of the inner ring portion 121; alternatively, the engaging portion 143 is provided as a block, and the stopper portion 114 is provided as a groove extending in the axial direction of the inner ring portion 121.
Optionally, the gripping member 14 is provided with a receiving groove (not shown in the drawing), the notch of the receiving groove is detachably covered with a cover 141, and a winding column (not shown in the drawing) for fixing the first traction wire end and the second traction wire end is provided in the receiving groove.
Optionally, the gripping member 14 further includes a spool 142, and the first traction wire and the second traction wire are guided by the spool 142 and extend into the receiving groove.
Referring to fig. 1-6, in a second aspect, an embodiment of the present utility model provides a control handle 100, the control handle 100 comprising an adjustment assembly 10 as in the first aspect.
According to the control handle 100 provided by the embodiment of the utility model, as the rotating member 12 in the adjusting assembly 10 is used for being connected with the first traction wire and the second traction wire which are oppositely arranged around the axis of the catheter 200, the inner ring part 121 of the rotating member 12 is arranged in the groove 111 and can rotate around the axis of the inner ring part 121, and two elastic members 13 are arranged between the inner ring part 121 and the outer ring part 122, the first ends of the elastic members 13 are connected with the fixing member 11, the second ends of the elastic members 13 are connected with the rotating member 12, the elastic force applied by the two elastic members 13 to the rotating member 12 is along the circumferential direction of the inner ring part 121 and opposite in direction, so that when the inner ring part 121 rotates around the axis of the inner ring part 121, one elastic member 13 is further compressed, the end part of the first traction wire bends towards the side where the first traction wire is located, and when the catheter 200 is sprung, as the two elastic members 13 can apply a force opposite to the rotation direction of the inner ring part 121, the elastic members 121 can bend towards the side of the first traction wire, the elastic member 13 can rebound in the direction of the groove 111, the elastic member is prevented from bending back towards the second traction wire 200 in the opposite direction, and the position of the second traction wire can be more stable in the direction of the position of the catheter 200, and the elastic member 200 can rebound force can be prevented from being more stable in the reverse to the position of the second traction wire 200, and the elastic member 200 can rebound force can be more stable in the reverse to the position of the catheter 200, and the elastic member 200.
It will be appreciated that the catheter 200 is a four-axis bending catheter 200, the catheter 200 is provided with a first traction wire, a third traction wire, a second traction wire and a fourth traction wire which are uniformly and alternately distributed along the circumferential direction of the catheter 200, two adjusting assemblies 10 are provided, one adjusting assembly 10 is connected with the first traction wire and the second traction wire, and the other adjusting assembly 10 is connected with the third traction wire and the fourth traction wire. By the arrangement, rapid rebound can be realized when the end part of the catheter 200 is bent in four directions, such as the front-back and left-right directions.
Optionally, the control handle 100 provided in the embodiment of the present utility model further includes a top cover 30 and a knob 20, wherein the top cover 30 is disposed at one end of the adjusting assembly 10 near the catheter 200, and the knob 20 is fixedly sleeved on the rotating member 12 and can drive the rotating member 12 to rotate.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (10)
1. An adjustment assembly for a control handle for controlling a catheter provided with a first pull wire and a second pull wire disposed opposite about an axis of the catheter, the adjustment assembly comprising:
the fixing piece is provided with a groove;
the rotating piece is used for being connected with the first traction wire and the second traction wire, and comprises an inner ring part and an outer ring part which are connected with each other, the outer ring part is sleeved on the inner ring part, and the inner ring part is arranged in the groove and can rotate around the axis of the inner ring part in the groove;
the two elastic pieces are located between the inner ring portion and the outer ring portion, the elastic pieces are provided with a first end and a second end, the first end is connected with the fixing piece, the second end is connected with the rotating piece, and elastic forces applied to the rotating piece by the two elastic pieces are all along the circumferential direction of the inner ring portion and opposite in direction.
2. The adjustment assembly of claim 1, wherein the securing member includes a first projection located between the inner ring portion and the outer ring portion, two of the resilient members being located on either side of the first projection in a circumferential direction of the inner ring portion, the first end being connected to the first projection.
3. The adjustment assembly of claim 2, wherein the second end and the first projection are axisymmetrically disposed about an axis of the inner ring portion.
4. The adjustment assembly of claim 1, wherein the inner ring portion abuts against a bottom wall of the recess to limit movement of the securing member in a direction toward the rotating member.
5. The adjustment assembly of claim 1, wherein the rotating member further comprises a second projection located between the inner ring portion and the outer ring portion, the second end being coupled to the second projection.
6. An adjustment assembly according to any one of claims 1 to 5, characterized in that the elastic element is provided as a spring or as elastic rubber.
7. The adjustment assembly of any one of claims 1 to 5, further comprising a grip, wherein the securing member and the inner ring portion are sequentially nested around the grip, the inner ring portion being rotatable about its own axis.
8. The adjustment assembly of claim 7, wherein the fixing member is provided with a through hole extending in an axial direction of the inner ring portion, an inner hole wall of the through hole is provided with a limiting portion, the holding member is provided with a fitting portion, the limiting portion is slidably connected with the fitting portion and limits rotation of the fixing member around an axis of the inner ring portion, and a relative sliding direction of the limiting portion and the fitting portion is parallel to the axial direction of the inner ring portion.
9. The adjustment assembly of any one of claims 1 to 5, 8, wherein the rotating member is provided with a spool, and the first and second pull wires are each wound around the spool.
10. A control handle, characterized in that it comprises an adjustment assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320545372.7U CN219661757U (en) | 2023-03-15 | 2023-03-15 | Adjusting component and control handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320545372.7U CN219661757U (en) | 2023-03-15 | 2023-03-15 | Adjusting component and control handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219661757U true CN219661757U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320545372.7U Active CN219661757U (en) | 2023-03-15 | 2023-03-15 | Adjusting component and control handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219661757U (en) |
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2023
- 2023-03-15 CN CN202320545372.7U patent/CN219661757U/en active Active
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