Sliding seat and rotating assembly and anastomat using same

Abstract

The utility model discloses a sliding seat and a rotating assembly and an anastomat using the sliding seat, and the sliding seat comprises a seat sleeve which is provided with a hollow cylindrical accommodating cavity; the movable seat is used for being assembled in the containing cavity, and the movable seat is suitable for adjusting the corresponding axial fixing position of the movable seat in the axial direction of the containing cavity; the guiding assembly comprises a guiding strip which is arranged on the inner wall of the containing cavity in a protruding mode and is distributed in a spiral mode and a guiding rail which is arranged on the outer circle wall face of the movable base and is 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. According to the utility model, for the assembly of the sliding seat and the transmission pipe, the precision requirement of a size chain in the production process of the sliding seat and the transmission pipe can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, it relates to a kind of sliding seat and the rotating assembly and anastomat using it. BACKGROUND

[0002] Anastomat is applied to cardiothoracic surgery, gastrointestinal surgery, hepatobiliary and pancreatic surgery, general surgery, urology surgery etc., can help patient to reduce pain, accelerate the healing of wound.Anastomat has the advantages such as convenient to use, suture fast, easy to operate, reduce side effect and surgical complication.Anastomat includes manual anastomat and electric anastomat.

[0003] For this, publication number CN118203377A discloses a kind of automatic identification cartridge electric endoscope anastomat, the cooperation of multiple components requires high, so the size chain requirement of component in production process is also relatively higher.For the knife rod sleeve (also called transmission pipe in prior art) and universal handle inner sleeve (also called sliding seat in prior art) among them, assembly hole for fixing knife rod sleeve is designed on universal handle inner sleeve.In addition, for the two components, for example, the anastomat with rotating handle and its use method disclosed in announcement number CN107714122B, the center of sliding seat is provided with through hole along the axial direction, transmission pipe can pass through mounting seat through hole and contact with sliding seat.

[0004] Therefore, for transmission pipe and sliding seat in prior art, transmission pipe is usually not adjustable, and the assembly precision of instrument can only be realized by reducing the dimensional chain related part size tolerance and controlling the machining precision of each part, objectively speaking, the improvement of part machining precision inevitably increases the machining cost of part, and the cumulative tolerance of each part in dimensional chain reduces the yield of finished product, which is not conducive to the improvement of production efficiency.Therefore, from the perspective of reducing the dimensional chain precision requirement of production process, the assembly structure of transmission pipe and sliding seat needs to be further optimized and improved. UTILITY MODEL CONTENTS

[0005] The first object of the utility model is to provide a kind of sliding seat, to solve the technical problem of reducing the dimensional chain precision requirement of its production process.

[0006] The second object of the utility model is to provide a kind of rotating assembly, to solve the technical problem of reducing the dimensional chain precision requirement of the production process of sliding seat in rotating assembly.

[0007] The third object of the utility model is to provide a kind of anastomat, to solve the technical problem of reducing the dimensional chain precision requirement of the production process of rotating assembly of anastomat.

[0008] The sliding seat of the utility model is realized as follows:

[0009] A sliding seat comprises:

[0010] A seat sleeve having a hollow cylindrical accommodating cavity;

[0011] A movable seat for being assembled in the accommodating cavity, and the movable seat is adapted to adjust its corresponding axial fixed position along the axial direction of the accommodating cavity;

[0012] A guide assembly comprising helically distributed guide strips protruding on the inner wall of the accommodating cavity and helically distributed guide tracks provided on the outer circumferential wall surface of the movable seat;

[0013] A limiting assembly comprising a limiting slot provided on the side wall of the seat sleeve and communicating with the accommodating cavity and a limiting column connected with the movable seat after passing through the limiting slot; the limiting slot is obliquely distributed along the circumferential direction of the outer side wall surface of the seat sleeve.

[0014] In the optional implementation of the utility model, the seat sleeve has two axial end openings communicating with the accommodating cavity;

[0015] The movable seat is assembled inside one of the axial end openings of the seat sleeve.

[0016] In the optional implementation of the utility model, the two slot ends of the limiting slot are in different axial positions along the axial direction of the accommodating cavity.

[0017] In the optional implementation of the utility model, the limiting column is threadedly connected with the movable seat.

[0018] In the optional implementation of the utility model, the movable seat comprises a circular base and a cylindrical extension connected with the circular base;

[0019] An assembly hole is provided at the axial center of the circular base, and the cylindrical extension has a hollow cavity communicating with the assembly hole;

[0020] The guide tracks are provided on the outer side wall of the cylindrical extension.

[0021] In the optional implementation of the utility model, the limiting column adopts a cylindrical structure; and

[0022] The outer diameter of the limiting column is equal to the width of the limiting slot along the axial direction of the accommodating cavity.

[0023] In the optional implementation of the utility model, the end of the limiting column protruding on the side of the limiting slot away from the movable seat is further provided with a cap.

[0024] The rotating assembly of the utility model is realized as follows:

[0025] A rotating assembly comprises the sliding seat and a transmission pipe connected with the sliding seat.

[0026] The anastomat is achieved in the following manner:

[0027] An anastomat comprises the rotating assembly.

[0028] By adopting the above technical scheme, the utility model has the following beneficial effects: the sliding seat and the rotating assembly and the anastomat using the same have the following advantages: for the sliding seat, the movable seat connected with the transmission pipe can be adjusted in the fixed position in the seat cover through the guide assembly, so that the transmission pipe connected with the movable seat can be adjusted in the fixed position relative to the seat cover, thereby reducing the accuracy requirement of the size chain in the production process, and reducing the production difficulty. 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 move along the limiting groove, and the adjustment process is simple and efficient, and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 Fig. 1 is a structural schematic view of the sliding seat of the utility model;

[0030] Figure 2 Fig. 2 is a first perspective view of the seat cover of the sliding seat of the utility model;

[0031] Figure 3 Fig. 3 is a second perspective view of the seat cover of the sliding seat of the utility model;

[0032] Figure 4 Fig. 4 is a first perspective view of the movable seat of the sliding seat of the utility model;

[0033] Figure 5 Fig. 5 is a second perspective view of the movable seat of the sliding seat of the utility model

[0034] Figure 6 Fig. 6 is a third perspective view of the movable seat of the sliding seat of the utility model.

[0035] In the figure: seat cover 1, accommodating cavity 11, guide strip 12, movable seat 2, circular base 21, cylindrical extension 22, assembly hole 23, cavity 24, guide rail 25, limiting groove 3, limiting column 4, cap 5. DETAILED DESCRIPTION

[0036] In order to make the content of the utility model more easily and clearly understood, the utility model will be further described in detail below according to specific embodiments and in combination with the drawings.

[0037] Embodiment 1:

[0038] Please refer to Figures 1 to 6The embodiment shown provides a sliding seat, which comprises a seat cover 1, a movable seat 2 arranged in the seat cover 1, and a guide assembly and a limiting assembly arranged between the seat cover 1 and the movable seat 2.

[0039] Specifically, the seat cover 1 has a hollow cylindrical accommodating cavity 11; the movable seat 2 is arranged in the accommodating cavity 11 and is adapted to adjust the fixed position in the corresponding axial direction along the axial direction of the accommodating cavity 11.

[0040] Based on the above, in order to meet the adjustment requirement of the axial position of the movable seat 2 in the accommodating cavity 11, the embodiment is realized by the guide assembly and the limiting assembly.

[0041] In combination with an optional embodiment shown in the drawings, first, the guide assembly comprises a guide strip 12 arranged in a spiral shape on the inner wall of the accommodating cavity 11 and a guide track 25 arranged in a spiral shape on the outer circumferential surface of the movable seat 2. From the perspective of simplifying the structure, the guide strip 12 can be designed as only one strip, and the one guide strip 12 is close to one circumferential dimension around the accommodating cavity 11. Correspondingly, the guide track 25 can also be designed as only one track on the outer circumferential surface of the movable seat 2, and the one guide track 25 is close to one circumferential dimension around the outer circumferential surface of the movable seat 2.

[0042] Secondly, the limiting assembly comprises a limiting slot 3 arranged on the side wall of the seat cover 1 and communicating with the accommodating cavity 11 and a limiting column 4 passing through the limiting slot 3 and connected with the movable seat 2; the limiting slot 3 is arranged in an inclined manner along the circumferential direction of the outer side wall of the seat cover 1. The design of the limiting assembly is used to form the positioning effect of the movable seat 2 after the position adjustment and to form the force application part during the position adjustment of the movable seat 2.

[0043] To meet the above use requirement, the seat cover 1 has two axial end openings communicating with the accommodating cavity 11; the movable seat 2 is arranged inside one of the axial end openings of the seat cover 1.

[0044] Regarding the case that the limiting slot 3 is arranged in an inclined manner along the circumferential direction of the outer side wall of the seat cover 1, it needs to be specified that the overall limiting slot 3 has a circular arc strip structure along the outer side wall of the seat cover 1, and the limiting slot 3 has two slot end portions. In this case, the inclined arrangement of the limiting slot 3 along the circumferential direction of the outer side wall of the seat cover 1 corresponds to that the two slot end portions of the limiting slot 3 are in different axial positions along the axial direction of the accommodating cavity 11, so that the overall movable seat 3 is moved along the axial direction of the accommodating cavity of the seat cover 1 during the movement of the limiting column 4 along the limiting slot 3, thereby adjusting the assembly position of the movable seat 3 relative to the seat cover 1.

[0045] In a specific alternative, 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, the outer wall of the limiting column 4 and the groove wall of the limiting groove 3 will form a sliding friction, and the sliding friction is used to limit the specific position of the movable seat 2 in the accommodating cavity 11. 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 of the limiting column 4 along the limiting groove 3. In this regard, considering the convenience of operation, a cap 5 is further arranged at the end of the limiting column 4 extending to the side of the limiting groove 3 away from the movable seat 2, and the cap 5 can form a contact part for the hand to push the limiting column 4.

[0046] In addition, it is necessary to point out that the movable seat 2 adopted in the embodiment includes 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; and a guide rail 25 is arranged on the outer side wall of the cylindrical extension 22.

[0047] 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 cap 5 is pushed by the hand, so that the limiting column 4 can move along the limiting groove 3, and the two groove ends of the limiting groove 3 are located at different positions along the axial direction of the accommodating cavity 11, so that the position of the entire movable seat 2 in the accommodating cavity 11 is also adjusted synchronously during the movement of the limiting column 4 along the limiting groove 3. Therefore, for the entire movable seat 2, the axial position thereof relative to the accommodating cavity 11 of the seat sleeve 1 is adjustable, 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 pushed to move along the limiting groove 3, and the adjustment process is simple, efficient and easy to operate.

[0048] Embodiment 2:

[0049] On the basis of the sliding seat of embodiment 1, the embodiment provides a rotating assembly, which is mainly applied in an electric anastomat (endoscope), and the rotating assembly generally includes the sliding seat of embodiment 1 and a transmission pipe connected with the sliding seat. The transmission pipe is connected with the assembly hole 23 arranged at the axial center of the circular base 21 of the movable seat 2.

[0050] It should be noted that for the mounting mode between the transmission pipe and the assembly hole 23 of the embodiment, and the implementation principle of the specific sliding seat in the rotating assembly, any mature means in the prior art can be used, and the embodiment is not absolutely limited. The embodiment only improves the assembly relationship between the transmission pipe and the sliding seat, that is, the axial mounting position of the transmission pipe relative to the sleeve 1 of the sliding seat corresponding to the accommodating cavity 11 can be adjusted. Therefore, the precision requirement of the size chain of the production process of the transmission pipe and the sliding seat is reduced, thereby reducing the production difficulty.

[0051] Embodiment 3:

[0052] On the basis of the rotating assembly of embodiment 2, the embodiment provides an anastomat, comprising the rotating assembly of embodiment 2.

[0053] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model. 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. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

[0054] 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.

[0055] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0056] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawings shown or the orientation or position relation commonly placed when the utility model product is used, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated 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. In addition, the terms "first", "second", "third" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0057] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0058] In the utility model, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature therebetween. Moreover, 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 means 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 means that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A sliding seat, characterized in that, The application relates to a sliding seat, which comprises a seat sleeve with a hollow cylindrical accommodating cavity, a movable seat assembled in the accommodating cavity and adapted to adjust the fixed position of the corresponding axis along the axis of the accommodating cavity, a guide assembly comprising helically distributed guide strips arranged on the inner wall of the accommodating cavity and helically distributed guide tracks arranged on the outer circular wall surface of the movable seat, and a limiting assembly comprising a limiting slot 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 slot, wherein the limiting slot is obliquely distributed along the circumferential direction of the outer side wall of the seat sleeve. The seat sleeve has two axial end openings communicated with the accommodating cavity. The movable seat is assembled inside one of the axial end openings of the seat sleeve. The two slot ends of the limiting slot are in different axial positions along the axis of the accommodating cavity. The limiting column is threadedly connected with the movable seat.

2. The sliding seat of claim 1, wherein The movable seat comprises a circular base and a cylindrical extension connected with the circular base. An assembly hole is arranged at the axis of the circular base, and the inside of the cylindrical extension has a hollow cavity communicated with the assembly hole.

3. The sliding seat of claim 2, wherein, The guide tracks are arranged on the outer side wall of the cylindrical extension.

4. The sliding seat according to any one of claims 1 to 3, characterized in that The limiting column adopts a cylindrical structure.

5. The sliding seat of claim 1, wherein The outer diameter of the limiting column is equal to the width of the limiting slot along the axis of the accommodating cavity. The end of the limiting column protruding on the side of the limiting slot away from the movable seat is further provided with a cap. The application further relates to a transmission pipe connected with the sliding seat.

6. The sliding seat of claim 1, wherein The application further relates to a rotating assembly comprising the sliding seat according to claim 8. ​ 7. The sliding seat of claim 6, wherein ​ 8. A rotary assembly characterized by, ​ ​ 9. A stapler characterized by comprising: ​ ​

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