Steering knob assembly and anastomat using same

Abstract

The utility model discloses a steering knob assembly and an anastomat using the steering knob assembly. The steering knob assembly comprises a turning shell and a sliding seat arranged in the turning shell. The sliding base comprises a base sleeve with a hollow cylindrical containing cavity, a movable base used for being assembled in the containing cavity, a guide assembly and a limiting assembly, wherein the guide assembly and the limiting assembly are arranged between the base sleeve and the movable base. The movable seat is suitable for adjusting the fixed position of the corresponding axial direction along the axial direction of the accommodating cavity; the guiding assembly comprises guiding strips which are arranged on the inner wall of the containing cavity in a protruding mode and distributed in a spiral mode and guiding rails which are arranged on the outer circle wall face of the movable base and distributed in a spiral mode. The limiting assembly comprises a limiting groove which is formed in the side wall of the seat sleeve and communicates with the containing cavity and a limiting column which penetrates through the limiting groove and then is connected with the movable seat. The limiting grooves are obliquely distributed in the circumferential direction of the outer side wall face of the base sleeve. A hollowed-out groove used for exposing the limiting assembly is formed in the rotating shell, and the hollowed-out groove is provided with a detachable cover plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relate to a kind of steering knob assembly and anastomat using it. BACKGROUND

[0002] Anastomat is applied to cardiothoracic surgery, gastrointestinal surgery, hepatobiliary and pancreatic surgery, general surgery, urology surgery and the like, which can help patients to reduce pain and accelerate wound healing. Anastomosis device has the advantages of convenient use, rapid suture, simple operation, reduced side effects and surgical complications. Anastomosis device includes manual anastomosis device and electric anastomosis device.

[0003] In the existing anastomosis device, in order to facilitate the operation of the instrument by the doctor, a device for turning the instrument is usually provided, such as the anastomosis device under the endoscope disclosed in the publication No. CN204364053U; and for example, the electric anastomosis device with automatic stroke sensing disclosed in the publication No. CN118252561A; and for example, the anastomosis device with rotating handle and its use method disclosed in the publication No. CN107714122B, the turning device adopted by which comprises a turning shell and a firing sleeve (or called a sliding seat) arranged in the turning shell, wherein the center of the sliding seat is provided with a through hole penetrating in the axial direction, and the transmission pipe can pass through the through hole of the mounting seat and contact with the sliding seat. In the prior art, the transmission pipe and the sliding seat are generally fixed by the through hole designed on the sliding seat, which has high requirements for the size chain of the components. In the actual production and assembly process, the use requirements may not be met due to the failure to meet the size precision.

[0004] In addition, for various anastomosis devices adopted by the prior art, the transmission pipe is usually not adjustable, and the assembly precision of the instrument can only be realized by reducing the size tolerance of the related parts of the size chain and controlling the machining precision of each part. Objectively speaking, the improvement of the machining precision of the parts inevitably increases the machining cost of the parts, and the cumulative tolerance of each part in the size chain reduces the yield of the finished product, which is not conducive to the improvement of production efficiency. On the other hand, in the assembly process of the transmission pipe and the sliding seat, if the adjustment can only be made before the assembly of the transmission pipe and the sliding seat to the turning shell, if the transmission pipe needs to be adjusted after the assembly with the turning shell, the turning shell must be disassembled to realize the adjustment, so the convenience of the debugging process of the anastomosis device is poor.

[0005] Therefore, from the perspective of reducing the size chain precision requirement in the production process and improving the convenience of debugging in the assembly process, the structure of the steering knob assembly needs to be further optimized and improved. UTILITY MODEL CONTENTS

[0006] The first purpose of the utility model is to provide a steering knob assembly to solve the technical problem of improving the convenience of debugging in the assembly process.

[0007] The second purpose of the utility model is to provide an anastomat to solve the technical problem of improving the convenience of debugging in the assembly process of the steering knob assembly used by the anastomat.

[0008] The steering knob assembly of the utility model is implemented as follows:

[0009] A steering knob assembly comprises a rotating shell and a sliding seat arranged in the rotating shell, wherein

[0010] The sliding seat comprises a seat sleeve with a hollow cylindrical accommodating cavity, a movable seat assembled in the accommodating cavity, and a guide assembly and a limiting assembly arranged between the seat sleeve and the movable seat; the movable seat is adapted to adjust the fixed position in the corresponding axial direction along the axial direction of the accommodating cavity;

[0011] The guide assembly comprises helically distributed guide strips protruding on the inner wall of the accommodating cavity and helically distributed guide tracks arranged on the outer circumferential surface of the movable seat;

[0012] The limiting assembly comprises a limiting groove arranged on the side wall of the seat sleeve and communicating with the accommodating cavity and a limiting column passing through the limiting groove and connected with the movable seat; the limiting groove is inclinedly distributed along the circumferential direction of the outer side wall of the seat sleeve;

[0013] The rotating shell is provided with a hollow groove for exposing the limiting assembly, and the hollow groove is provided with a detachable cover plate.

[0014] In the optional implementation of the utility model, the rotating shell comprises an upper shell body and a lower shell body adapted to be connected in a matched manner;

[0015] The hollow groove comprises an upper half groove arranged on the upper shell body and a lower half groove arranged on the lower shell body, and the upper half groove and the lower half groove are adapted to be spliced to form the waist-shaped hollow groove.

[0016] In the optional implementation of the utility model, the cover plate comprises a plate-shaped main body used for covering the hollow groove and at least one pair of buckles arranged on the plate-shaped main body and used for one-to-one clamping with at least one pair of groove edges of the hollow groove;

[0017] The groove edge of the hollow groove is provided with a bayonet suitable for one-to-one clamping with the buckle.

[0018] In the optional implementation of the utility model, the buckle comprises a frustoconical main body adapted to be partially embedded in the bayonet, an arc-shaped wall shaped on the outer side wall of the frustoconical main body and adapted to be slidingly matched with the groove edge of the hollow groove, and a clamping wall adapted to abut against the inner wall of the bayonet and connected with the arc-shaped wall by bending.

[0019] In optional implementation of the utility model, a pair of buckles are arranged on the plate-shaped body, and a pair of corresponding accommodation grooves for fingers are arranged on the plate-shaped body.

[0020] In optional implementation of the utility model, the seat sleeve has two shaft end openings communicating with the accommodating cavity.

[0021] The movable seat is assembled on the inner side of one of the shaft end openings of the seat sleeve.

[0022] In optional implementation of the utility model, the two groove end portions of the limiting groove are at different axial positions along the axial direction of the accommodating cavity.

[0023] In optional implementation of the utility model, the movable seat comprises a circular base and a cylindrical extension connected with the circular base.

[0024] The shaft center of the circular base is provided with an assembly hole, and the cylindrical extension has a hollow cavity communicating with the assembly hole.

[0025] The guide rail is arranged on the outer sidewall of the cylindrical extension.

[0026] In optional implementation of the utility model, the limiting column adopts a cylindrical structure.

[0027] The outer diameter of the limiting column is equal to the width of the limiting groove along the axial direction of the accommodating cavity.

[0028] The end portion of the limiting column protruding on the side of the limiting groove away from the movable seat is further provided with a cap.

[0029] The utility model realizes the anastomat in this way.

[0030] An anastomat comprises the steering knob assembly.

[0031] The utility model discloses the following beneficial effects are obtained: the utility model discloses a steering knob assembly and an anastomat using the same, for the sliding seat, the movable seat connected with the transmission pipe, the fixed position of the movable seat in the seat cover can be adjusted through the guide assembly, so that the transmission pipe connected with the movable seat can be adjusted synchronously, thereby reducing the accuracy requirement of the size chain in the production process, and the production difficulty is reduced. Moreover, the adjustment of the assembly fixed position of the movable seat relative to the seat cover only needs to rotate the limiting column to make it move along the limiting groove, and the adjustment process is simple and efficient, easy to operate. In addition, the hollow slot is arranged on the steering shell for exposing the limiting assembly, and the limiting column can be adjusted through the hollow slot, so that the anastomat can be adjusted even after the assembly of the steering shell and the sliding seat is completed, and the convenience and flexibility of the anastomat are improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 Structure schematic diagram of the hollow slot of the steering knob assembly of the utility model in the state of removing the cover plate;

[0033] Figure 2 Structure schematic diagram of the hollow slot of the steering knob assembly of the utility model in the state of removing the cover plate;

[0034] Figure 3 Structure schematic diagram of the hollow slot of the steering knob assembly of the utility model in the state of removing the cover plate;

[0035] Figure 4 Structure schematic diagram of the cover plate of the steering knob assembly of the utility model;

[0036] Figure 5 Structure schematic diagram of the sliding seat of the steering knob assembly of the utility model;

[0037] Figure 6 First perspective structure schematic diagram of the seat cover of the sliding seat of the steering knob assembly of the utility model;

[0038] Figure 7 Second perspective structure schematic diagram of the seat cover of the sliding seat of the steering knob assembly of the utility model;

[0039] Figure 8 First perspective structure schematic diagram of the movable seat of the sliding seat of the steering knob assembly of the utility model;

[0040] Figure 9 Second perspective structure schematic diagram of the movable seat of the sliding seat of the steering knob assembly of the utility model

[0041] Figure 10The third view structure schematic diagram of the movable seat of the sliding seat of the steering knob assembly.

[0042] In the figure: the rotating shell 100, the upper shell 101, the lower shell 102, the hollow groove 200, the bayonet 201, the plate-shaped main body 300, the accommodation groove 301, the buckle 400, the arc-shaped wall 401, the clamping wall 402, the seat cover 1, the accommodating cavity 11, the guide strip 12, the movable seat 2, the circular base 21, the cylindrical extension 22, the assembly hole 23, the cavity 24, the guide rail 25, the limiting groove 3, the limiting column 4, the cap 5. DETAILED DESCRIPTION

[0043] In order to make the content of the utility model more easily be clearly understood, below according to specific embodiment and combining with the drawings, the utility model is further detailed.

[0044] Embodiment 1:

[0045] Please refer to Figures 1 to 10 As shown in the figure, the embodiment provides a kind of steering knob assembly, including: rotating shell 100 and the sliding seat in rotating shell 100.Wherein the sliding seat includes seat cover 1, movable seat 2 for being arranged in seat cover 1, and the guide assembly and limiting assembly between seat cover 1 and movable seat 2.

[0046] Specifically, seat cover 1, it has the hollow cylindrical accommodating cavity 11;Movable seat 2 is used to be assembled in accommodating cavity 11, and movable seat 2 is suitable for adjusting its corresponding axial fixed position along the axial direction of accommodating cavity 11.

[0047] Based on the above situation, to meet the adjustment requirement of the axial position of movable seat 2 in accommodating cavity 11, the embodiment is realized by guide assembly and limiting assembly.

[0048] In combination with the drawing, an optional implementation case is exemplified, first is guide assembly, it includes the guide strip 12 of spiral distribution for being protruded on the inner wall of accommodating cavity 11 and the guide rail 25 of spiral distribution for being arranged on the outer circular wall surface of movable seat 2.From the angle of simplifying structure, the guide strip 12 here can only design a strip, and this guide strip 12 is close to a circumferential dimension around accommodating cavity 11.Correspondingly, guide rail 25 can also only design a strip on the outer circular wall surface of movable seat 2, and this guide rail 25 is close to a circumferential dimension around the outer circular wall surface of movable seat 2.

[0049] Secondly, the limiting assembly includes a limiting slot 3 arranged on the side wall of the seat cover 1 and communicated with the accommodating cavity 11 and a limiting column 4 communicated with the movable seat 2 after passing through the limiting slot 3; the limiting slot 3 is inclinedly distributed along the circumferential direction of the outer side wall surface of the seat cover 1. Here, the design of the limiting assembly is used for forming the positioning effect of the position adjustment of the movable seat 2 relative to the accommodating cavity 11 after being adjusted in place, and is also used for forming the force applying part during the position adjustment of the movable seat 2.

[0050] On the basis of the above structure, it is to be noted that the hollow slot 200 for exposing the limiting assembly is arranged on the rotating shell 100 of the embodiment, and the hollow slot 200 is provided with a detachable cover plate. More specifically, in combination with an example of an optional case, the rotating shell 100 includes an upper shell 101 and a lower shell 102 adapted to be connected; the hollow slot 200 includes an upper half slot arranged on the upper shell 101 and a lower half slot arranged on the lower shell 102, and the upper half slot and the lower half slot are adapted to be combined to form a waist-shaped hollow slot 200.

[0051] The embodiment can detach the cover plate from the hollow slot 200 when the limiting assembly needs to be adjusted, and then reattach the cover plate after the adjustment is completed, so as to avoid that sundries or dust enter the rotating shell from the hollow slot 200 during the use of the stapler.

[0052] In this regard, in combination with an example of an optional case, the cover plate includes a plate-shaped main body 300 used for covering the hollow slot 200, and at least one pair of buckles 400 arranged on the plate-shaped main body 300 and used for one-to-one clamping with at least one pair of slot edges of the hollow slot 200; the slot edges of the hollow slot 200 are provided with a plurality of card holes 201 adapted to one-to-one clamping with the buckles 400.

[0053] More specifically, the buckle 400 includes a frustum-shaped body adapted to be partially embedded into the card hole 201, an arc-shaped wall 401 shaped on the outer side wall of the frustum-shaped body and adapted to be slidingly matched with the slot edge of the hollow slot 200, and a clamping wall 402 adapted to abut against the inner wall of the card hole 201 and connected with the arc-shaped wall 401 by bending.

[0054] In order to operate the hand, for example, a pair of buckles 400 are arranged on the plate-shaped body 300, and a pair of buckles 400 are arranged on the plate-shaped body 300. The accommodation slot 301 is suitable for the finger to be embedded. Under this structure, the cover plate is clamped by two fingers, and when the cover plate is assembled with the hollow slot 200, the pair of buckles 400 is suitable for deformation when entering the hollow slot 200, so that the arc-shaped wall 401 of the buckle 400 is in sliding fit with the slot edge of the hollow slot 200, and when the buckle 400 is partially embedded in the buckle 400, the buckle 400 restores its original state, and the buckle wall 402 at this time is in engagement with the inner wall of the buckle 201. When the cover plate is not subjected to external force, the buckle wall 402 cannot pass through the inner wall of the buckle 201, so that the buckle 400 cannot be separated from the buckle 201, thereby ensuring the reliability and stability of the cooperation structure formed by the cover plate and the hollow slot 200.

[0055] Next, it needs to be explained that in order to meet the use requirements of the sliding seat, the seat cover 1 has two shaft end openings communicating with the accommodating cavity 11; the movable seat 2 is assembled on the inner side of one of the shaft end openings of the seat cover 1.

[0056] Regarding the case that the limiting groove 3 is inclinedly distributed along the circumferential direction of the outer side wall surface of the seat cover 1, it needs to be explained in detail that the overall limiting groove 3 has a generally arc-shaped strip structure along the outer side wall surface of the seat cover 1. In this regard, the limiting groove 3 has two groove end portions. In this case, the inclined distribution of the limiting groove 3 relative to the circumferential direction of the outer side wall surface of the seat cover 1 specifically corresponds to the fact that the two groove end portions of the limiting groove 3 are at different axial positions along the axial direction of the accommodating cavity 11. In this way, when the limiting column 4 moves along the limiting groove 3, it will drive the overall movable seat 3 to move along the axial direction of the accommodating cavity of the seat cover 1, thereby adjusting the assembly position of the movable seat 3 relative to the seat cover 1.

[0057] In a specific optional implementation, the limiting column 4 is threadedly connected with the movable seat 2. The limiting column 4 adopts a cylindrical structure; and the outer diameter of the limiting column 4 is equal to the width of the limiting groove 3 along the axial direction of the accommodating cavity 11. In this design, when the limiting column 4 needs to move along the limiting groove 3, sliding friction will be formed between the outer wall of the limiting column 4 and the groove wall of the limiting groove 3, and the specific position of the movable seat 2 in the accommodating cavity 11 is limited by the sliding friction. When the limiting column 4 is moved to a specific position along the limiting groove 3 under the action of an external force, the position of the limiting column 4 relative to the limiting groove 3 is limited when the external force is lost, and there is no problem of unintended shaking, that is, a certain pushing force needs to be applied to the limiting column 4 for the sliding movement of the limiting column 4 along the limiting groove 3. In this regard, considering the convenience of operation, a cap 5 is arranged on the end portion of the limiting column 4 extending on the side of the limiting groove 3 away from the movable seat 2, and the cap 5 can form a contact portion for pushing the limiting column 4 by hand.

[0058] Further, it is necessary to point out that the movable seat 2 adopted in the embodiment comprises a circular base 21 and a cylindrical extension 22 connected with the circular base 21; the axial center of the circular base 21 is provided with an assembly hole 23, and the inside of the cylindrical extension 22 has a hollow cavity 24 in communication with the assembly hole 23; a guide rail 25 is arranged on the outer sidewall of the cylindrical extension 22.

[0059] Based on the above, for the sliding seat of the embodiment, when it is necessary to adjust the axial fixed position of the movable seat 2 in the accommodating cavity 11, the hand drives the cap 5, so that the limiting column 4 can move along the limiting groove 3, and the two groove ends of the limiting groove 3 itself are located at different positions along the axis of the accommodating cavity 11, so that during the movement of the limiting column 4 along the limiting groove 3, the position of the whole movable seat 2 in the accommodating cavity 11 is also adjusted synchronously, so that the axial position of the whole movable seat 2 relative to the accommodating cavity 11 of the seat sleeve 1 can be adjusted, and the adjustment process is convenient and efficient. For the adjustment of the fixed position of the movable seat 2 relative to the seat sleeve 1, only the limiting column 4 needs to be driven to move along the limiting groove 3, and the adjustment process is simple, efficient and easy to operate. In addition, the hollow groove 200 for exposing the limiting assembly is arranged on the steering shell 100, and the adjustment of the limiting column can be realized through the hollow groove 200, so that for the whole anastomat, even after the assembly of the steering shell and the sliding seat is completed, the adjustment of the limiting column can be realized, so that the convenience and flexibility of the whole anastomat are improved.

[0060] Embodiment 2:

[0061] On the basis of the steering knob assembly of embodiment 1, the embodiment provides an anastomat, which comprises the steering knob assembly of embodiment 1.

[0062] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above is only a specific embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0063] In the description of the utility model, it should be understood that the terms indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0064] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relationship.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0065] In the description of the utility model, it is to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on is based on the orientation or position relationship shown in the drawing, or is the orientation or position relationship of the utility model product when it is usually placed, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it can not be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" and so on are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0066] In addition, the terms "horizontal", "vertical", "overhang" and so on do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined."Horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0067] In the utility model, unless another definite provision and limitation, the first feature is above or below the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.Furthermore, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A steering knob assembly, characterized by, The application relates to a rotating knob assembly. The rotating knob assembly comprises a rotating shell and a sliding seat arranged in the rotating shell. The sliding seat comprises a seat sleeve with a hollow cylindrical accommodating cavity, a movable seat arranged in the accommodating cavity, and a guide assembly and a limiting assembly arranged between the seat sleeve and the movable seat; the movable seat is adapted to adjust the fixed position of the corresponding axis along the axis of the accommodating cavity. The guide assembly comprises helically distributed guide strips arranged on the inner wall of the accommodating cavity and helically distributed guide tracks arranged on the outer circumferential surface of the movable seat. The limiting assembly comprises a limiting groove arranged on the side wall of the seat sleeve and communicated with the accommodating cavity and a limiting column communicated with the movable seat after passing through the limiting groove; the limiting groove is obliquely distributed along the circumferential surface of the outer side wall of the seat sleeve. The rotating shell is provided with a hollow groove for exposing the limiting assembly, and the hollow groove is provided with a detachable cover plate. The rotating shell comprises an upper shell and a lower shell adapted to be connected.

2. The steering knob assembly of claim 1, wherein, The hollow groove comprises an upper half groove arranged on the upper shell and a lower half groove arranged on the lower shell, and the upper half groove and the lower half groove are adapted to be combined to form the waist-shaped hollow groove. The cover plate comprises a plate-shaped main body for covering the hollow groove and at least one pair of buckles arranged on the plate-shaped main body and adapted to be one-to-one clamped with at least one pair of groove edges of the hollow groove.

3. The steering knob assembly of claim 1 or 2, wherein, The groove edge of the hollow groove is provided with a buckle opening adapted to be one-to-one clamped with the buckle. The buckle comprises a frustum-shaped body adapted to be partially embedded in the buckle opening, an arc-shaped wall shaped on the outer side wall of the frustum-shaped body and adapted to be slidingly matched with the groove edge of the hollow groove, and a clamping wall adapted to abut against the inner wall of the buckle opening and connected with the arc-shaped wall.

4. The steering knob assembly of claim 3, wherein, The plate-shaped main body is provided with a pair of buckles, and the plate-shaped main body is further provided with a pair of accommodation grooves corresponding to the pair of buckles and adapted to embed fingers.

5. The steering knob assembly of claim 4, wherein, The seat sleeve has two axial end openings communicated with the accommodating cavity.

6. The steering knob assembly of claim 1, wherein, The movable seat is arranged in the inner side of one of the axial end openings of the seat sleeve. The two groove ends of the limiting groove are in different axial positions along the axis of the accommodating cavity.

7. The steering knob assembly of claim 6, wherein, The movable seat comprises a circular base and a cylindrical extension connected with the circular base.

8. The steering knob assembly of claim 1, wherein, The axis of the circular base is provided with an assembly hole, and the inside of the cylindrical extension has a hollow cavity communicated with the assembly hole. The guide track is arranged on the outer side wall of the cylindrical extension. The limiting column adopts a cylindrical structure; and 9. The steering knob assembly of claim 1, wherein, The outer diameter of the limiting column is equal to the width of the limiting groove along the axis of the accommodating cavity. The end of the limiting column extending on the side of the limiting groove away from the movable seat is further provided with a cap. The application further relates to a rotating knob assembly.

10. An anastomosis device, comprising: The rotating knob assembly comprises the rotating knob assembly according to any one of claims 1 to 9. ​

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