CN114145704A

CN114145704A - Side expanding structure for expander

Info

Publication number: CN114145704A
Application number: CN202111480920.4A
Authority: CN
Inventors: 张洋; 魏信鑫; 熊斌
Original assignee: Hangzhou Weixin Medical Technology Co ltd
Current assignee: Hangzhou Weixin Medical Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-03-08

Abstract

The invention discloses a side expanding structure for an expander, which comprises a bearing part, a first expanding part and two side expanding parts, wherein the first expanding part and the two side expanding parts are both rotationally connected to the bearing part; wherein, two side expand the piece and connect respectively on first expansion piece through second interlock mechanism. This a side expands structure for expander, two sides expand the piece and connect in first expansion piece through second interlock mechanism, when the upset of drive first expansion piece, can drive second expansion piece and two sides and expand a synchronous upset, can accomplish the expansion operation in one step, realize the synchronous expansion of flank, improved the convenience of use widely, can also reduce the uncomfortable sense of being examined the person.

Description

Side expanding structure for expander

Technical Field

The invention relates to the technical field of gynecological examination instruments, in particular to a side expanding structure for an expander.

Background

Dilators are common medical instruments used to examine gynecological diseases. Traditional duckbill formula expander is mostly two wing structures, in order not to change under the condition that the doctor used the custom, promotes the expansion effect of expander simultaneously, has appeared improving into the expander of four wing structures with the expander of two wing structures on the market at present. The existing four-wing structure expander has no linkage structure between the upper wing and the lower wing and the left wing and the right wing, and the upper wing and the lower wing need to be opened firstly and then the left wing and the right wing need to be opened in the operation process. In other words, the four wings of the dilator cannot be expanded synchronously, so that the doctor is inconvenient in use and discomfort can be caused to the examinee.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention provides a side stent structure for a stent.

The invention discloses a side expanding structure for an expander, which comprises a bearing piece, a first expanding piece and two side expanding pieces, wherein the first expanding piece and the two side expanding pieces are both rotationally connected to the bearing piece;

wherein, two sides expand the piece and connect on first expansion piece through second interlock mechanism respectively, drive first expansion piece and rotate and drive two sides and expand the piece and rotate.

According to an embodiment of the present invention, the second linkage mechanism includes a first pulling rod and a second pulling rod, one end of the first pulling rod is rotatably connected to the side expanding member on the same side, the other end of the first pulling rod is rotatably connected to one end of the second pulling rod, the first expanding transmission portion of the first expanding member is movably disposed on the other end of the second pulling rod, and the second pulling rod is movably disposed on the bearing member.

According to an embodiment of the present invention, the bearing member is provided with a guide groove, the second pull rod member is provided with a guide bar, the guide bar is movably disposed in the guide groove, and the guide bar moves along the guide groove.

According to an embodiment of the present invention, the supporting member is provided with a supporting strip for supporting the second pulling member.

According to an embodiment of the present invention, a second linkage stroke position is disposed on an end of the second pulling rod member away from the first pulling rod member, and the first expanding transmission portion is movably connected to the second linkage stroke position.

According to an embodiment of the present invention, the second linkage stroke is an elongated through hole.

According to an embodiment of the present invention, the bearing member is provided with a limit position, one end of the second pull rod member close to the first pull rod member movably penetrates the limit position, and one end of the second pull rod member far from the first pull rod member cannot penetrate the limit position.

According to an embodiment of the invention, the two lateral expansion elements are symmetrically arranged.

According to one embodiment of the invention, the side expanding piece comprises a side expanding part and a side expanding connecting part, the side expanding connecting part is connected with the side expanding part, and the side expanding connecting part is hinged on the bearing piece.

According to an embodiment of the present invention, the bearing member is provided with two rotating shafts, the two rotating shafts are symmetrically arranged, and the two side expansion connecting portions are sleeved with the two rotating shafts one by one.

Compared with the prior art, the side expanding structure for the expander has the following advantages:

according to the side expanding structure for the expander, the two side expanding pieces are connected to the first expanding piece through the second linkage mechanism, when the first expanding piece is driven to turn over, the second expanding piece and the two side expanding pieces can be driven to turn over synchronously, the expanding operation can be completed in one step, the synchronous expansion of the side wings is realized, the use convenience is greatly improved, and the discomfort of an inspected person can be reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural view of a side expanding structure for a dilator in a closed state in an embodiment;

FIG. 2 is a structural section view of a side-expanding structure for the dilator in a closed state in the embodiment;

FIG. 3 is a first structural diagram of a side expanding structure for the expander in an open state in the embodiment;

FIG. 4 is a structural diagram II of a side expanding structure for the expander in an open state in the embodiment;

FIG. 5 is a schematic structural diagram of a carrier in an embodiment;

FIG. 6 is a schematic structural view of a first expansion element according to an embodiment;

FIG. 7 is a schematic view showing the installation of the first interlocking mechanism in the embodiment;

FIG. 8 is a schematic structural view of a second tie bar member according to an embodiment;

FIG. 9 is an enlarged view of area A of FIG. 2;

fig. 10 is an enlarged view of region B in fig. 4.

Description of reference numerals:

1. a carrier; 11. a hand-held portion; 111. a handheld section; 112. a visible segment; 1121. a visible area; 113. a mounting cavity; 114. a supporting strip; 12. an installation part; 121. a first linkage stroke position; 122. a rotating shaft; 123. a guide groove; 13. limiting the position; 2. a first expansion member; 21. a first expanding portion; 22. a first expansion joint; 23. a first expansion driving section; 24. a first expansion transmission part; 3. a second expansion element; 31. a second expanded portion; 32. a second expansion joint; 4. a side expanding piece; 41. a side expanding part; 42. a side expanding connecting part; 5. a first linkage mechanism; 51. a first link member; 52. a second link member; 6. a second linkage mechanism; 61. a first pull rod member; 62. a second pull rod member; 621. a guide strip; 622. a second linkage travel position; 7. a locking mechanism; 71. a lock section; 711. a locking tooth; 712. a lock drive unit; 72. locking positions; 721. locking teeth; 8. a visualization mechanism.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As used herein, the term "substantially closed" and grammatical related terms refer to the relative structural arrangement of two objects: one of the objects is positioned perfectly closed to the other object or one of the objects is positioned in such a way that it is immediately recognizable as closed to the other object although not perfectly closed to the other object. A relative structural arrangement between two objects that is not perfectly closed but immediately recognizable as closed due to acceptable tolerances suitable for manufacturing a device of the type described herein is considered to be positioned substantially closed.

As used herein, the term "substantially circular" and grammatically related terms refer to a perfect circle or a shape that, although not a perfect circle, can be immediately recognized as a circle. A cross-sectional shape that is not perfectly circular but immediately recognizable as circular due to acceptable tolerances suitable for manufacturing devices of the type described herein is considered substantially circular.

Referring to fig. 1-10, a side expands structure for expander, includes that hold carrier 1, first expander 2 and two sides expand piece 4, and first expander 2 and two sides expand piece 4 and all rotate and connect on holding carrier 1, and drive first expander 2 and rotate and drive two sides and expand piece 4 and rotate. The expansion operation can be completed in one step, the synchronous expansion of the side wings is realized, the use convenience is greatly improved, and the discomfort of the checked person can be reduced.

In this embodiment, the carrier 1 is a handle. Referring to fig. 5, the carrier 1 includes a handheld portion 11 and two mounting portions 12, the two mounting portions 12 are symmetrically disposed on the handheld portion 11, the first expansion member 2 is rotatably connected to the two mounting portions 12, the two side expansion members 4 are in one-to-one correspondence with the two mounting portions 12, and the side expansion members 4 are rotatably connected to the corresponding mounting portions 12.

Further, the hand-held portion 11 includes a hand-held section 111 and a visible section 112, two mounting portions 12 are connected to the hand-held section 111, and the two mounting portions 12 are located on both sides of the visible section 112. Wherein, a visual region 1121 is arranged on one end of the visual section 112 away from the handheld section 111, and the visual region 1121 faces the opening channel so as to observe the vagina.

Further, the handheld portion 11 is further provided with a mounting cavity 113 for placing the visual mechanism 8, and the mounting cavity 113 is penetrated by the handheld section 111 and the visual section 112. The visual mechanism 8 is detachably disposed in the mounting cavity 113, a visual module of the visual mechanism 8 is opposite to the visual region 1121, and the visual mechanism 8 observes the vagina through the visual region 1121.

Referring to fig. 6, the first expansion part 2 includes a first expansion portion 21, a first expansion connecting portion 22 and a first expansion driving portion 23, the number of the first expansion connecting portions 22 is two, the two first expansion connecting portions 22 connect the first expansion portion 21 and the first expansion driving portion 23, the two first expansion connecting portions 22 are hinged to the two mounting portions 12 one by one, and the first expansion driving portion 23 is pressed to drive the first expansion portion 21 to rotate. In addition, the first expansion element 2 comprises two first expansion gear 24, the two first expansion gear 24 being connected to the first expansion drive 23 for driving the lateral expansion element 4.

The two side expanders 4 are arranged in the left and right directions and are located between the first expansion part 21 and the second expansion part 31. The side expanding piece 4 is connected to the first expanding piece 2 through the second linkage mechanism 6 respectively, and the first expanding piece 2 is driven to rotate so as to drive the side expanding piece 4 to rotate synchronously. Specifically, the side expanding piece 4 comprises a side expanding part 41 and a side expanding connecting part 42, the side expanding connecting part 42 is connected to the side expanding part 41, and the side expanding connecting part 42 is hinged on the mounting part 12 on the same side, wherein the mounting part 12 is respectively provided with a rotating shaft 122, and the side expanding connecting part 42 is rotatably sleeved with the rotating shaft 122 on the same side. Meanwhile, the side expansion joint part 42 is connected to the first expansion joint part 22 on the same side via the second linkage mechanism 6.

Further, the second linkage mechanism 6 includes a first pulling rod 61 and a second pulling rod 62, one end of the first pulling rod 61 is rotatably sleeved with the lateral expansion connecting portion 42 on the same side, the other end of the first pulling rod 61 is rotatably connected with one end of the second pulling rod 62, the first expansion is movably disposed on the other end of the second pulling rod 62, and the second pulling rod 62 is movably disposed on the bearing member 1.

Further, the mounting portion 12 is provided with a guide groove 123, the second pull rod 62 is provided with a guide bar 621, the guide bar 621 is movably disposed in the guide groove 123, and the guide bar 621 moves along the guide groove 123 to guide the moving direction of the second pull rod 62.

Further, the holding portions 11 are respectively provided with supporting bars 124 facing the mounting portions 12, and the supporting bars 124 are used for supporting the second pull rod members 62.

Further, a second linkage stroke position 622 is disposed on an end of the second pull rod element 62 away from the first pull rod element 61, the first expansion transmission part 24 is movably connected with the second linkage stroke position 622, and the first expansion element 2 drives the second pull rod element 62 to move through the cooperation of the first expansion transmission part 24 and the second linkage stroke position 622.

Preferably, a limit 13 is disposed between the mounting portion 12 and the visible section 112, one end of the second pull rod 62 close to the first pull rod 61 is movably disposed in the limit 13, and one end of the second pull rod 62 far from the first pull rod 61 cannot pass through the limit 13, so as to limit the moving stroke of the second pull rod 62 and limit the moving direction of the second pull rod 62.

In addition, this expander still includes second expansion piece 3, and second expansion piece 3 is upper and lower setting with first expansion piece 2, and second expansion piece 3 is connected on first expansion piece 2 through first link gear 5, and the rotation of the first expansion piece 2 of drive can drive the synchronous rotation of second expansion piece 3. Specifically, the second expansion piece 3 includes a second expansion portion 31 and two second expansion connecting portions 32, the two second expansion connecting portions 32 are symmetrically disposed on the second expansion portion 31, the two second expansion connecting portions 32 are hinged to the two mounting portions 12 one by one, and at least one second expansion connecting portion 32 is connected to the adjacent first expansion connecting portion 22 through the first linkage mechanism 5. Preferably, the number of the first linkage mechanisms 5 is two, and the two first linkage mechanisms 5 are symmetrically arranged, and the two second expansion connecting portions 32 are connected to the two first expansion connecting portions 22 through the two first linkage mechanisms 5. The second expansion connecting part 32 is connected to the first expansion connecting part 22 on the same side through the first interlocking mechanism 5, so that the interlocking stability of the first expansion piece 2 and the second expansion piece 3 is improved.

Further, referring to fig. 7, the first linkage mechanism 5 includes a first link member 51 and a second link member 52, one end of the first link member 51 is hinged to the first expansion joint 22, the other end of the first link member 51 is hinged to one end of the second link member 52, the other end of the second link member 52 is hinged to the second expansion joint 32, and a rotation joint point of the first link member 51 and the second link member 52 is movably disposed on the mounting portion 12.

Furthermore, the mounting portion 12 is provided with a first linkage stroke position 121, the rotation connection point of the first link member 51 and the second link member 52 is movably disposed in the first linkage stroke position 121, and the rotation connection point of the first link member 51 and the second link member 52 moves along the first linkage stroke position 121. In this embodiment, the first linkage stroke position 121 is a kidney-shaped hole.

In the specific application: the visual mechanism 8 is installed in the installation cavity 113, the handheld section 111 of the handheld portion 11 is handheld and presses the first expansion driving portion 23, the first expansion connecting portion 21 is driven to rotate upwards through the transmission of the first expansion connecting portion 22, the first expansion connecting portion 22 drives the first connecting rod piece 51 and the second connecting rod piece 52 to move, and then the second expansion connecting portion 32 is driven to rotate downwards, namely the second expansion portion 31 is driven to rotate downwards; meanwhile, when the first expansion driving portion 23 is pressed, the first expansion driving portion 24 is driven to move, so as to drive the first pull rod 61 and the second pull rod 62 to move, and further drive the side expansion connecting portion 42 to rotate outwards, i.e. drive the side expansion portion 41 to rotate outwards. At the moment, the dilator is in an open state, an open channel is formed among the first dilator element 2, the second dilator element 3 and the two side dilator elements 4, and the vagina can be observed by the visual mechanism 8 through the open channel. Conversely, the dilator can be closed by releasing the first dilation driver 23.

In addition, the device further comprises a locking mechanism 7, and the locking mechanism 7 relatively fixes the position of the first expansion piece 2, and further relatively fixes the positions of the second expansion piece 3 and the two side expansion pieces 4.

The locking structure includes locking portion 71 and locking position 72, and on the carrier 1 was located to the one end of locking portion 71, the other end of locking portion 71 was unsettled and worn to locate locking position 72, and locking position 72 is located on first expansion piece 2, and locking portion 71 can be dismantled with locking position 72 and be connected.

Furthermore, the locking part 71 is provided with a locking tooth 711, the locking position 72 is provided with a locking tooth 721, and the locking tooth 711 is engaged with the locking tooth 721 to relatively fix the first expansion part 2. The locking part 71 is arranged along the turning path of the first expander 2, the number of the locking teeth 711 is multiple, and the locking teeth 711 are arranged along the locking part 71, so that the fixation of multiple opening angles of the expander is realized.

Furthermore, a locking driving portion 712 is disposed at a suspended end of the locking portion 71, and pushing the locking driving portion 712 can bend the locking portion 71 by a certain angle, so that the locking teeth 711 are separated from the locking teeth 721, and the first extender 2 is in an active state.

To sum up, this a side expands structure for expander, two sides expand the piece and connect in first expansion piece through second interlock mechanism, when drive first expansion piece upset, can drive second expansion piece and two sides and expand a synchronous upset, can accomplish the expansion operation in one step, realize flank synchronous expansion, improved the convenience of use widely, can also reduce the uncomfortable sense of the person of being examined.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A side expanding structure for an expander is characterized by comprising a hand piece (1), a first expander (2) and two side expanding pieces (4), wherein the first expander (2) and the two side expanding pieces (4) are both rotatably connected to the hand piece (1);

the two side expanding pieces (4) are connected to the first expanding piece (2) through second linkage mechanisms (6) respectively, and the first expanding piece (2) is driven to rotate to drive the two side expanding pieces (4) to rotate.

2. The lateral dilating structure for the dilator according to claim 1, wherein the second linkage mechanism (6) comprises a first pulling rod (61) and a second pulling rod (62), one end of the first pulling rod (61) is rotatably connected to the lateral dilating element (4) on the same side, the other end of the first pulling rod (61) is rotatably connected to one end of the second pulling rod (62), the first dilating transmission part (24) of the first dilating element (2) is movably arranged at the other end of the second pulling rod (62), and the second pulling rod (62) is movably arranged on the hand piece (1).

3. The lateral dilator structure of claim 2, wherein a guide groove (123) is formed on the hand piece (1), a guide strip (621) is formed on the second pull rod piece (62), the guide strip (621) is movably arranged in the guide groove (123), and the guide strip (621) moves along the guide groove (123).

4. The lateral expanding structure for the dilator according to claim 2, wherein a support strip (124) is provided on the hand piece (1), and the support strip (124) is used for supporting the second pull rod piece (62).

5. The lateral expanding structure for the dilator according to claim 2, wherein a second linkage stroke position (622) is arranged on one end of the second pull rod member (62) far away from the first pull rod member (61), and the first expanding transmission part (24) is movably connected with the second linkage stroke position (622).

6. The lateral dilation structure for dilators, according to claim 5, characterized in that said second co-action travel location (622) is an elongated through hole.

7. The lateral expanding structure for the dilator according to claim 2, wherein a limit position (13) is arranged on the hand piece (1), one end of the second pull rod piece (62) close to the first pull rod piece (61) is movably arranged in the limit position (13), and one end of the second pull rod piece (62) far away from the first pull rod piece (61) can not pass through the limit position (13).

8. A lateral dilation structure for dilators according to any of claims 1 to 7, characterized in that two of said lateral dilation members (4) are symmetrically arranged.

9. The lateral dilation structure for a dilator according to any one of claims 1 to 7, wherein the lateral dilation piece (4) comprises a lateral dilation portion (41) and a lateral dilation connecting portion (42), the lateral dilation connecting portion (42) is connected to the lateral dilation portion (41), and the lateral dilation connecting portion (42) is hinged to the hand piece (1).

10. The lateral expanding structure for the dilator according to claim 9, wherein two rotating shafts (122) are arranged on the hand piece (1), the two rotating shafts (122) are symmetrically arranged, and the two lateral expanding connecting portions (42) are sleeved with the two rotating shafts (122) one by one.