CN218391168U

CN218391168U - Minimally invasive surgery instrument regulating and controlling device

Info

Publication number: CN218391168U
Application number: CN202221259273.4U
Authority: CN
Inventors: 李广成
Original assignee: Suzhou Meidehou Medical Co ltd
Current assignee: Suzhou Meidehou Medical Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2023-01-31
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a minimally invasive surgery instrument regulating and controlling device, which comprises a fixed part, a telescopic part and a knob, wherein the fixed part is provided with a telescopic limiting cavity in the front-back direction and a knob limiting groove in the circumferential direction, and the telescopic limiting cavity passes through and is communicated with the knob limiting groove; the telescopic part is inserted into the telescopic limiting cavity and can move along the front and back directions of the telescopic limiting cavity, a section of external thread protruding out of the knob limiting groove is arranged on the telescopic part, and a penetrating fixed instrument channel is arranged in the front and back directions of the telescopic part; the knob is sleeved in the knob limiting groove, and the inner side wall of the knob is provided with internal threads which are matched with the exposed external threads of the telescopic part, so that the telescopic part is driven to move. The utility model has simple structure and convenient operation; through the threaded fit between the knob and the telescopic component, the opening and closing state of the working component of the instrument can be randomly adjusted within a certain range and can be continuously and accurately maintained.

Description

Minimally invasive surgery instrument regulating and controlling device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to minimally invasive surgery apparatus regulation and control device.

Background

In clinical operation at present, a plurality of surgical instruments used often need to be adjusted and controlled to be in an opening and closing state or a telescopic state of instrument working parts in operation, particularly in minimally invasive surgery in an endoscope working channel, different instrument working parts often need to be inserted into the endoscope working channel in a folding state, and the instrument working parts need to be opened to be in a proper working state during normal working, for example, when bipolar coagulation and an endoscope are combined for operation. Similar apparatus among the prior art mostly is through extrusion elasticity connecting rod clamp handle structure, promotes interior outer tube relative motion and realizes that apparatus working part opens and shuts, and its shortcoming can not last the best state that opens and shuts of accurate maintenance working part, when using with novel endoscope combination "mirror machinery is integrative" very much, still need one hand to adjust apparatus working part and open and shut, can't realize one-hand operation, consequently, prior art needs further improvement and improvement.

SUMMERY OF THE UTILITY MODEL

To the defect that above-mentioned prior art exists, the utility model aims to provide a minimal access surgery apparatus regulates and control device to this is solved and is existed not enough in the aspect of the prior art, realizes that the state of opening and shutting that can adjust apparatus work piece at will in the certain limit keeps sustainable accurate.

In order to realize the technical purpose, the utility model discloses a technical scheme is: a minimally invasive surgical instrument regulating and controlling device comprises a fixing part, a telescopic part and a knob, wherein the fixing part is provided with a telescopic limiting cavity in the front-back direction and a knob limiting groove in the circumferential direction, and the telescopic limiting cavity penetrates through and is communicated with the knob limiting groove; the telescopic component is inserted into the telescopic limiting cavity and can move along the front and back directions of the telescopic limiting cavity, and external threads are arranged on the telescopic component; the knob is sleeved in the knob limiting groove, and the inner side wall of the knob is provided with internal threads which are in threaded fit with the telescopic part.

Furthermore, an instrument base is arranged inside the fixing part, and a fixing instrument is installed at the front end of the instrument base.

Furthermore, an operation sleeve is fixedly installed at the front end of the telescopic component, and a penetrating fixed instrument channel is arranged in the front-back direction of the telescopic component; the telescopic component is sleeved outside the fixed instrument through the fixed instrument channel.

Furthermore, the inner side wall of the telescopic limiting cavity in the fixed component is provided with a sliding rail along the length direction of the fixed component, and the outer side wall of the telescopic component is provided with a sliding groove matched with the sliding rail.

Furthermore, the fixing part comprises a handheld part and an instrument combining part, a telescopic cavity matched with the telescopic part is arranged on the instrument combining part, a knob base is arranged at the rear end of the telescopic cavity, a containing groove communicated with the telescopic cavity is arranged on the knob base, and the containing groove and the telescopic cavity are matched to form a telescopic limiting cavity; the rear end of the knob base is connected with the front end of the handheld portion, and a knob limiting groove is formed between the instrument combining portion and the handheld portion.

Furthermore, the two ends of the handheld part are open, the interior of the handheld part is hollow, and the inner side wall of the front end opening of the handheld part is provided with internal threads; the outer side of the rear end of the knob base is provided with an external thread and is connected to the front end opening of the handheld part.

Further, an instrument base is arranged inside the handheld part; the knob base is divided into two parts by the containing groove, and the rear end of the containing groove of the knob base is matched with the front end of the instrument base.

Furthermore, the rear end of the telescopic component is provided with a telescopic adjusting column which is in a flat column shape, and the outer side wall of the telescopic adjusting column is provided with external threads; correspondingly, the through hole at the rear end of the telescopic cavity for communicating with the containing groove is flat; the accommodating groove is matched with the telescopic adjusting column.

Further, the thread diameter of the external thread on the telescopic adjusting column is larger than the outer diameter of the knob base.

Furthermore, the knob is in a ring column shape, and anti-skid stripes are arranged on the outer side wall of the knob.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model has simple structure and convenient operation; through the cooperation between knob and the telescopic part, can adjust the open and shut state and the sustainable accurate maintenance of apparatus work piece at will in certain extent.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic view of the instrument junction of the present invention;

FIG. 5 is a rear side view of the structure of FIG. 4;

FIG. 6 is a schematic structural view of the telescopic member of the present invention;

FIG. 7 is an isometric view of the structure of FIG. 6;

in the figure: 1. the device comprises a handheld part, 2, a knob, 3, an instrument combining part, 4, a telescopic part, 5, an operation sleeve, 6 and an instrument base; 31. a telescopic cavity 32, a flat through hole 33, a knob base 34, a containing groove 41, a telescopic adjusting column 42, a middle column section 43 and a fixed instrument channel.

Detailed Description

It should be noted that, in the description of the present invention, the terms such as "upper", "lower", "left", "right", "front", "back", "inner", "outer", "vertical", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only the terms determined for the convenience of describing the structural relationships of the components of the present invention, and are not specific to the fact that any component of the present invention must have a specific direction, be constructed and operated in a specific direction, and should not be construed as limiting the present invention.

In addition, in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" should be broadly construed and interpreted as including, for example, either a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

in the case of the example 1, the following examples are given,

as shown in fig. 1 to 3, a minimally invasive surgical instrument adjusting device comprises a fixing part, a telescopic part 4 and a knob 2, wherein the fixing part comprises a handheld part 1 and an instrument combining part 3. The inner side wall of the lower end opening of the handheld part 1 is provided with internal threads; an instrument base 6 is arranged in the handheld part 1, and a fixed instrument is fixedly arranged at the lower end of the instrument base 6; as shown in fig. 4 and 5, the instrument combining portion 3 includes a protruding portion and a handle, which are fixedly connected and integrally formed, a penetrating telescopic cavity 31 is formed in the width direction of the protruding portion, a knob base 33 is fixedly arranged at the rear end of the telescopic cavity 31, a section of external thread is arranged on the outer side wall of the tail end of the knob base 33, so that the instrument combining portion 3 is conveniently connected to the lower end opening of the handheld portion 1, and a knob limiting groove is formed by the combined protruding portion and the handle and the knob base 33; the knob base 33 is provided with a flat accommodating groove 34, the accommodating groove 34 divides the knob base 33 into two parts, and the two parts are communicated with the telescopic cavity 31 through a flat through hole 32 arranged at the joint of the knob base 33 and the boss part and form a telescopic limiting cavity together with the telescopic cavity 31.

The telescopic part 4 is in a column shape, as shown in fig. 6 and 7, the rear end of the telescopic part 4 is provided with a telescopic adjusting column 41, the telescopic adjusting column 41 is in a flat column structure, and the arc side walls at two sides of the telescopic adjusting column are provided with external threads; a fixed instrument channel 43 is formed through the telescopic member 4 in the longitudinal direction along the central axis thereof, and with reference to fig. 1, an operating sleeve 5 is fixedly mounted at the front end of the telescopic member 4, and the operating sleeve 5 and the fixed instrument channel 43 are located on the same central axis. When the telescopic component 4 is inserted into the telescopic limiting cavity, the telescopic component is just sleeved outside the fixed instrument through the fixed instrument channel 43; the middle column section 42 of the telescopic part 4 is accommodated in the telescopic cavity 31, and the outer diameter is slightly smaller than the inner diameter of the telescopic cavity 31; the telescopic adjusting column 41 of the telescopic component 4 passes through the flat through hole 32 and is accommodated in the accommodating groove 34 on the knob base 33, and the thread diameter of the external thread on the telescopic adjusting column 41 is larger than the external diameter of the knob base 33.

The knob 2 is of a circular ring columnar structure, is sleeved on the knob base 33 of the instrument combining part 3 and is accommodated in a knob limiting groove formed between the instrument combining part 3 and the handheld part 1, and the inner side wall of the knob is provided with an internal thread matched with the external thread on the telescopic adjusting column 41; the outer side wall of the knob 2 is also provided with anti-slip stripes, so that the operation rotation friction force is increased, and the rotation is facilitated.

The use principle is as follows: firstly, completing the matching installation of all parts, and installing an instrument base 6 in the handheld part 1; the knob 2 is sleeved on the knob base 33, the opening at the rear end of the accommodating groove 34 on the knob base 33 is matched with the front end of the instrument base 6, and the front end of the instrument base 6 is inserted into the accommodating groove 34 to play a supporting role, so that the rear end of the knob base 33 is in threaded fastening fit with the opening at the front end of the handheld part 1; the telescopic component 4 is inserted in the telescopic limiting cavity from the front end of the telescopic cavity 31, and the operating sleeve 5 is sleeved outside the fixed instrument. In the clinical operation in-process, when needing to carry out the state adjustment that opens and shuts to apparatus workpiece, the operator holds handheld portion 1, the rotatory knob 2 of finger, knob 2 is rotatory in the knob spacing inslot circumferencial direction, through with the screw-thread fit between the extensible part 4, make relative motion take place between extensible part 4 and the fixed part, extensible part 4 is stretched forward, drive operation sleeve 5 stretches out, the lower extreme of operation sleeve 5 extrudees the exposed core of fixed apparatus, accomplish the closed clamping action of apparatus workpiece, one hand can operate. When the working part of the instrument needs to be opened, the knob 2 is rotated reversely to drive the telescopic part 4 to retract, and the lower end of the operation sleeve 5 reduces the extrusion on the clamping part of the fixed instrument; the boss structure formed between the telescopic adjusting post 41 and the middle post section 42 in the telescopic part 4 just plays a limiting role, and abuts against the inner side wall of the flat through hole 32, and the retraction is finished.

In the case of the example 2, the following examples are given,

a minimally invasive surgical instrument regulating and controlling device comprises a fixed part, a telescopic part 4 and a knob 2, wherein the fixed part is integrally formed and is provided with a telescopic limiting cavity in the front-back direction and a knob limiting groove in the circumferential direction, and the telescopic limiting cavity penetrates through the knob limiting groove and is mutually communicated with the knob limiting groove; an instrument base is fixedly arranged at the rear end inside the telescopic limiting cavity, and a fixed instrument is fixedly arranged at the front end of the instrument base; the inner side wall of the telescopic limiting cavity is provided with a sliding rail along the front-back direction of the telescopic limiting cavity. The telescopic component 4 is inserted into the telescopic limiting cavity, the outer side wall of the telescopic component is provided with a sliding chute matched with the sliding rail, and the telescopic component 4 and the sliding chute are matched with each other to enable the telescopic component 4 to move only along the front-back direction of the telescopic limiting cavity; meanwhile, a section of external thread is arranged on the telescopic part 4, and the external thread protrudes and is exposed in the knob limiting groove; an operation sleeve 5 is fixedly installed at the front end of the telescopic component 4, a penetrating fixed instrument channel is arranged in the front-back direction of the telescopic component 4 and is positioned on the same axis with the operation sleeve 5, and the telescopic component 4 is sleeved outside the fixed instrument through the fixed instrument channel. The knob 2 is sleeved in the knob limiting groove, and the inner side wall of the knob is provided with internal threads which are matched with the exposed external threads of the telescopic part 4, so that the telescopic movement of the telescopic part 4 is driven.

The specific use principle of this embodiment is the same as that of embodiment 1, and will not be described herein.

Finally, it should be noted that the above description of the embodiments is only used for illustrating the technical solutions of the present invention, and is not a limitation of the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. A minimally invasive surgical instrument adjusting and controlling device is characterized in that: the telescopic device comprises a fixed part, a telescopic part and a knob, wherein the fixed part is provided with a telescopic limiting cavity in the front-back direction and a knob limiting groove in the circumferential direction, and the telescopic limiting cavity penetrates through and is communicated with the knob limiting groove; the telescopic component is inserted into the telescopic limiting cavity and can move along the front and back directions of the telescopic limiting cavity, and external threads are arranged on the telescopic component; the knob is sleeved in the knob limiting groove, and the inner side wall of the knob is provided with internal threads which are in threaded fit with the telescopic part.

2. The minimally invasive surgical instrument manipulation device of claim 1, wherein: an instrument base is arranged in the fixing part, and a fixing instrument is installed at the front end of the instrument base.

3. The minimally invasive surgical instrument manipulation device of claim 2, wherein: an operation sleeve is fixedly installed at the front end of the telescopic component, and a penetrating fixed instrument channel is arranged in the front-back direction of the telescopic component; the telescopic component is sleeved outside the fixed instrument through the fixed instrument channel.

4. The minimally invasive surgical instrument manipulation device of claim 1, wherein: the inner side wall of the telescopic limiting cavity in the fixed component is provided with a slide rail along the length direction of the fixed component, and the outer side wall of the telescopic component is provided with a slide groove matched with the slide rail.

5. The minimally invasive surgical instrument manipulation device of claim 1, wherein: the fixing part comprises a handheld part and an instrument combining part, a telescopic cavity matched with the telescopic part is arranged on the instrument combining part, a knob base is arranged at the rear end of the telescopic cavity, an accommodating groove communicated with the telescopic cavity is arranged on the knob base, and the accommodating groove is matched with the telescopic cavity to form a telescopic limiting cavity; the rear end of the knob base is connected with the front end of the handheld portion, and a knob limiting groove is formed between the instrument combining portion and the handheld portion.

6. The minimally invasive surgical instrument manipulation device of claim 5, wherein: the inner side wall of the front end opening of the handheld part is provided with internal threads; the outer side of the rear end of the knob base is provided with an external thread and is connected to the front end opening of the handheld part.

7. The minimally invasive surgical instrument manipulation device of claim 6, wherein: an instrument base is arranged inside the handheld part; the knob base is divided into two parts by the containing groove, and the rear end of the containing groove of the knob base is matched with the front end of the instrument base.

8. The minimally invasive surgical instrument manipulation device of claim 7, wherein: the rear end of the telescopic component is provided with a telescopic adjusting column which is in a flat column shape, and the outer side wall of the telescopic adjusting column is provided with external threads; correspondingly, the through hole at the rear end of the telescopic cavity for communicating with the containing groove is flat; the accommodating groove is matched with the telescopic adjusting column.

9. The minimally invasive surgical instrument manipulation device of claim 8, wherein: the thread diameter of the external thread on the telescopic adjusting column is larger than the external diameter of the knob base.

10. The minimally invasive surgical instrument manipulation device of claim 1, wherein: the knob is in a ring column shape, and anti-skid stripes are arranged on the outer side wall of the knob.