CN215191856U

CN215191856U - Traction device for surgical operation

Info

Publication number: CN215191856U
Application number: CN202120093595.5U
Authority: CN
Inventors: 苏新良; 郭维军; 胡富强; 田丰
Original assignee: Chongqing Chenglian Medical Investment Management Co ltd
Current assignee: Chongqing Chenglian Medical Investment Management Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-12-17
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a traction device for surgical operation, which comprises a guide rail and at least one drag hook component arranged on the guide rail; the draw hook assembly comprises a sliding locking mechanism and a draw hook, the sliding locking mechanism is slidably arranged on the guide rail, and the draw hook is arranged on the sliding locking mechanism. The utility model relates to a tractive device for surgery operation can realize adjusting and fixing the angle and the position of drag hook in a plurality of angular flexibility, adapts to the operating range of operation, has saved medical personnel's physical power, has indirectly improved the quality and the effect of operation.

Description

Traction device for surgical operation

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to tractive device for surgery operation.

Background

In many procedures, such as for thyroid, thoracic surgery, etc., surgical hooks are used to pull the wound. The drag hook adopted by the prior art only comprises a single hook-shaped hook body, and the angle of the drag hook cannot be flexibly adjusted and fixed to adapt to the traction at different positions. In addition, a plurality of medical personnel specially responsible for pulling the drag hook need to be equipped during the operation, and the medical personnel always hold the drag hook and continuously pull outwards with force during the operation, which is very laborious and inconvenient. Therefore, it is an urgent need to solve the problem of designing a retractor device that can liberate both hands of medical personnel and adjust and fix the angle and position of the retractor.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a surgical retractor.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model relates to a traction device for surgical operation, which comprises a guide rail and at least one drag hook component arranged on the guide rail; the draw hook assembly comprises a sliding locking mechanism and a draw hook, the sliding locking mechanism is slidably arranged on the guide rail, and the draw hook is arranged on the sliding locking mechanism.

Furthermore, the drag hook comprises a hook body, an outer end joint, a metal hose, a locking body and a metal wire; the hook body is arranged at one end of the outer end joint, and the other end of the outer end joint is connected with one end of the metal hose; a mounting hole penetrating through the locking body is formed above the locking body, and a sliding groove with a downward opening and a first limiting block protruding downwards are formed below the locking body; the mounting holes comprise a first mounting hole and a second mounting hole which are coaxially penetrated, and the diameter of the first mounting hole is smaller than that of the second mounting hole; the other end of the metal hose is communicated with the first mounting hole; an elastic degree adjusting mechanism is arranged at one end where the second mounting hole is located; the two ends of the metal wire are respectively connected with the outer end connector and the tightness adjusting mechanism.

Furthermore, the metal hose is a bulb tube series connection type metal hose, the metal hose comprises a front half section connected with the hook body and a rear half section connected with the locking body, and the outer diameter of the front half section is smaller than that of the rear half section; the front half section and the rear half section are connected through a pipe sleeve, and the pipe sleeve comprises a tubular section and a conical section, wherein the outer diameter of the tubular section is the same as that of the rear half section and is connected with the rear half section, and the conical section gradually reduces to the same as that of the front half section and is connected with the front half section.

Furthermore, the tightness adjusting mechanism comprises an adjusting pull rod and an adjusting nut, the adjusting pull rod comprises a connecting part and a threaded part, the connecting part is connected with a metal wire, and the adjusting nut is in threaded connection with the threaded part; and a limiting connecting sleeve is arranged in the second mounting hole, and the adjusting pull rod is accommodated in the limiting connecting sleeve.

Furthermore, the outer end of the screw thread part protrudes outwards relative to the end part of the limiting connecting sleeve, and the inner end of the adjusting nut is in limiting and abutting fit with the end part of the limiting connecting sleeve.

Furthermore, an anti-rotation limiting surface is arranged on the connecting part, and an anti-rotation limiting bulge is correspondingly arranged on the inner wall of the limiting connecting sleeve; the hook body is detachably connected with the outer end joint.

Further, the sliding locking mechanism comprises a pressing body and a locking nut, the pressing body comprises a base, a second limiting block and a pressing pull rod, the second limiting block is arranged below one side of the base, the base is limited in the sliding groove and is in sliding fit with the sliding groove, a limiting sliding groove is formed between the first limiting block and the second limiting block, and the limiting sliding groove is in sliding fit with the guide rail; the pressing pull rod protrudes and extends outwards from one side, far away from the second limiting block, of the base along the horizontal direction; the surface of the compression pull rod is provided with threads, and the locking nut is sleeved on the compression pull rod and is in threaded fit with the compression pull rod.

Furthermore, the first limiting blocks protrude downwards from the edges of the two sides of the sliding groove and extend, a limiting groove is formed between the first limiting blocks, and the width of the limiting groove is smaller than the diameter of the locking nut so as to form resisting fit; the second limiting block slides through the limiting groove and then forms a limiting sliding groove with the first limiting block.

Furthermore, the opposite surfaces of the first limiting block and the second limiting block are inclined planes so that the limiting sliding grooves form dovetail grooves.

Furthermore, a ball is arranged on the lower surface of the locking body corresponding to the limiting sliding groove.

The beneficial effects of the utility model reside in that: the utility model relates to a tractive device for surgery operation can realize adjusting and fixing the angle and the position of drag hook in a plurality of angular flexibility, adapts to the operating range of operation, has saved medical personnel's physical power, has indirectly improved the quality and the effect of operation.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

fig. 1 is a perspective view of the traction device for surgical operation of the present invention.

Fig. 2 is a perspective view of the retractor assembly of the traction device for surgical operation of the present invention.

Fig. 3 is a three-dimensional exploded view of the retractor assembly of the traction device for surgical operation of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a partially enlarged view of a portion B in fig. 3.

Fig. 6 is a schematic structural view of the metal hose with a bulb connected in series.

Fig. 7 is a schematic structural view of the annular groove type metal hose.

Fig. 8 is a partially enlarged view of a portion C in fig. 3.

Fig. 9 is a perspective view of the slide locking mechanism and the locking body.

Fig. 10 is a perspective view of the slide locking mechanism and the locking body from another perspective.

Fig. 11 is an exploded perspective view of the sliding locking mechanism and the locking body.

Fig. 12 is an exploded perspective view of the slide locking mechanism and the locking body from another perspective.

In the drawing, 1 is a guide rail, 2 is a drag hook assembly, 3 is a sliding locking mechanism, 4 is a drag hook, 5 is a hook body, 6 is an outer end joint, 7 is a metal hose, 8 is a locking body, 80 is an installation hole, 81 is a sliding groove, 82 is a first limit block, 801 is a first installation hole, 802 is a second installation hole, 9 is a tightness adjusting mechanism, 90 is an adjusting pull rod, 91 is an adjusting nut, 901 is a connecting part, 902 is a threaded part, 803 is a limit connecting sleeve, 804 is an anti-rotation limit plane, 70 is a front half section, 71 is a rear half section, 72 is a pipe sleeve, 720 is a tubular section, 721 is a conical section, 30 is a compression body, 31 is a locking nut, 300 is a base, 301 is a second limit block, 302 is a compression pull rod, 303 is a limit sliding groove, 820 is a limit groove, and 83 is a ball.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 1, the traction device for surgical operation of the present invention comprises a guide rail 1 and at least one hook assembly 2 disposed on the guide rail 1. The drag hook assembly 2 comprises a sliding locking mechanism 3 and a drag hook 4, the sliding locking mechanism 3 is slidably arranged on the guide rail 1, the drag hook 4 is arranged on the sliding locking mechanism 3, the position of the drag hook 4 on the guide rail 1 is adjusted at any time, and the drag hook is locked and positioned through the sliding locking mechanism 3, so that the drag hook 4 is conveniently pulled around the wound to facilitate the operation. In this embodiment, the guide rail 1 is a closed-loop guide rail, the guide rail 1 can be fixedly mounted on an operating table through a common clamping mechanism, the number of the drag hook assemblies 2 is four, and the shape and size of the guide rail 1 and the number of the drag hook assemblies 2 can be customized and selected according to different operation types and characteristics of human bodies.

As shown in fig. 2 to 5, in particular, the retractor 4 comprises a hook body 5, an outer end connector 6, a metal hose 7, a locking body 8 and a metal wire. The hook body 5 is arranged at one end of the outer end joint 6, and the other end of the outer end joint 6 is connected with one end of the metal hose 7. The hook body 5 is detachably connected with the outer end connector 6, and the hook body 5 is preferably connected with the outer end connector 6 through a quick-change connector, so that the hook bodies of different sizes and models can be applied and quickly replaced, and the hook body 5 can be conveniently detached and then disinfected. The quick-change connector can adopt common ball and limiting groove structures, and the specific structure is not described any more.

A mounting hole 80 penetrating through the locking body 8 is arranged above the locking body 8, and a sliding groove 81 with a downward opening and a first limiting block 82 protruding downwards are arranged below the locking body 8. The mounting hole 80 includes a first mounting hole 801 and a second mounting hole 802 coaxially penetrating therethrough, and the diameter of the first mounting hole 801 is smaller than that of the second mounting hole 802. The other end of the metal hose 7 is connected with the first mounting hole 801 in a penetrating way; an elastic adjustment mechanism 9 is arranged at one end of the second mounting hole 802 for controlling the tension or release of the metal wire. The two ends of the metal wire are respectively connected with the outer end joint 6 and the tightness adjusting mechanism 9, and the stainless steel wire is preferably selected as the metal wire.

The tightness adjusting mechanism 9 comprises an adjusting pull rod 90 and an adjusting nut 91, the adjusting pull rod 90 comprises a connecting part 901 and a threaded part 902, the connecting part 901 is connected with a metal wire, and the adjusting nut 91 is in threaded connection with the threaded part 902. The two ends of the metal wire can be fixedly connected with the connecting part 901 and the outer end joint 6 by welding, screw pressing and other fixing connection modes, so long as the metal wire can be fixedly connected, and in order to achieve the best effect, the two ends of the metal wire are connected with the central parts of the connecting part 901 and the outer end joint 6 along the axis. A limit connecting sleeve 803 is arranged in the second mounting hole 802, and the adjusting pull rod 90 is accommodated in the limit connecting sleeve 803.

The outer end of the threaded portion 902 protrudes outwards relative to the end of the limiting connection sleeve 803, and the inner end of the adjusting nut 91 is in limiting and abutting fit with the end of the limiting connection sleeve 803.

The connecting portion 901 is provided with an anti-rotation limiting plane 804, the inner wall of the limiting connecting sleeve 803 is provided with an anti-rotation limiting protrusion corresponding to the anti-rotation limiting plane 804, and the anti-rotation limiting protrusion is matched with the anti-rotation limiting protrusion to prevent the adjusting pull rod 90 and the adjusting nut 91 from rotating synchronously, so that the situation that the metal wire cannot be tensioned is avoided.

The tension of the metal wire is adjusted through the tightness adjusting mechanism 9, and when the metal wire is tensioned, the metal hose 7 is pressed by pressure to be kept at a certain position and angle without shaking or changing. For example, when the hook 5 is adjusted to a certain position and angle, the metal hose 7 itself has certain stability properties and does not change the position and angle unless an external force is applied, but the metal hose 7 may be shaken or may change the position and angle when a small external force is applied. When the wound is pulled in an operation, the hook body 5 can be always contacted with the wound and kept in a pulling state without slipping only by the metal hose 7, the practice shows that if the operation cannot be realized by the aid of the metal hose 7, the metal wire is tensioned by the aid of the tension adjusting mechanism 9 and is kept in the tensioning state, the metal hose 7 has certain elasticity due to the fact that the metal hose 7 is not subjected to external force, when the hook body hooks the wound and is adjusted to a required position, the metal wire is tensioned at the moment, when the metal wire is tensioned, the metal hose 7 is pressed by the metal hose 7 through the outer end connector 6 and the tension adjusting mechanism 9 through tension, the rigidity of the metal hose 7 is enhanced to be locked at a certain position and angle without changing, even if medical workers push the metal hose 7 from the side at the moment, the position and the angle of the metal hose 7 cannot be changed, namely, the position and the angle of the hook body can not be changed, thereby ensuring the stability of the drag hook 4 for dragging the wound and meeting the operation requirement.

The metal hose 7 is a universal metal hose, that is, a metal hose having a function of being bendable to any position or angle. The metal hose 7 can be a bulb tube tandem type metal hose with the same outer diameter shown in fig. 6, namely, a ball body and a thin-wall tube are sequentially connected in series, or a ring groove type metal hose shown in fig. 7 can be used, and the two hose structures are conventional structures per se, or other existing metal hoses can be used.

As shown in fig. 8, in order to further enhance the rigidity of the metal hose 7 when the metal wire is tensioned and ensure the stability of positioning, in the present embodiment, a further inventive improvement is made to the ball-tube tandem metal hose 7. Specifically, the metal hose 7 includes a front half section 70 connected to the hook body 5 and a rear half section 71 connected to the locking body 8, and the outer diameter of the front half section 70 is smaller than that of the rear half section 71, that is, the metal hose 7 is composed of two hoses having different outer diameters. The front half 70 and the rear half 71 are connected by a pipe sleeve 72, and the pipe sleeve 72 includes a tubular section 720 having the same outer diameter as the rear half 71 and connected to the rear half 71, and a tapered section 721 having an outer diameter gradually reduced to the same outer diameter as the front half 70 and connected to the front half 70. Through the change of above-mentioned structure, optimize and changed the contact condition of wire and 7 inner walls of metal collapsible tube, especially when angle of adjustment makes 7 crookedness of metal collapsible tube great, after tightening the wire, the rigidity of metal collapsible tube 7 after the improvement is obviously higher than rigidity before the improvement, and positional stability is better, and whole metal collapsible tube 7 becomes tighter, and is better to the location effect of towing pintle 4, the condition that the position change or rock can not appear.

When the wire tensioning device is used, the tensioning force of the metal wire can be adjusted by rotating the adjusting nut 91. For example, when the metal wire needs to be tensioned, the adjusting nut 91 is rotated to cause the adjusting pull rod 90 to move outwards to the side away from the limiting connection sleeve 803, so that the metal wire is tensioned, the outer end connector 6 and the tightness adjusting mechanism 9 are forced to press the metal hose 7, and the hook body 5 is locked and positioned. Otherwise, the locking and positioning of the hook body 5 can be released.

As shown in fig. 9 to 12, the slide lock mechanism 3 includes a pressing body 30 and a lock nut 31, and the pressing body 30 includes a base 300, a second stopper 301 disposed below one side of the base 300, and a pressing rod 302. A limiting sliding groove 303 is formed between the first limiting block 82 and the second limiting block 301, and the limiting sliding groove 303 is in sliding fit with the guide rail 1 to adjust the specific position of the draw hook 4 and limit and fix the draw hook. The base 300 is limited in the sliding groove 81 and is in sliding fit with the sliding groove 81, and the second limiting block 301 can be driven to move through the sliding base 300 so as to adjust the width or size of the limiting sliding groove 303, so that the sliding base is suitable for sliding rails or guide rails 1 of different models. The pressing pull rod 302 protrudes and extends outwards from one side of the base 300 far away from the second limiting block 301 along the horizontal direction, threads are arranged on the surface of the pressing pull rod 302, and the locking nut 31 is sleeved on the pressing pull rod 302 and is in threaded fit with the pressing pull rod 302.

The first limiting blocks 82 protrude downwards from the two side edges of the sliding groove 81, limiting grooves 820 are formed between the first limiting blocks 82, the width of each limiting groove 820 is smaller than the diameter of each locking nut 31 to form a resisting fit, so that the width of each limiting sliding groove 303 can be adjusted when the locking nuts 31 are rotated, and therefore the locking bodies 8 and the drag hooks 4 on the locking bodies are locked on the special sliding rails or the special guide rails 1 or are taken down from the sliding rails or the special guide rails 1.

The second limiting block 301 slides through the limiting groove 820 to form a limiting sliding groove 303 with the first limiting block 82. In the present embodiment, to enhance the fixing effect, the opposing surfaces of the first stopper 82 and the second stopper 301 are inclined surfaces so that the stopper slide groove 303 forms a dovetail groove.

The lower surface of the locking body 8 is embedded with the ball 83 corresponding to the limiting sliding groove 303, and when the locking device is used, the ball 83 is in contact with the guide rail 1 to reduce the contact friction force between the guide rail 1 and the bottom of the locking body 8, so that the position can be adjusted more conveniently and more easily and smoothly.

When the sliding type surgical retractor is used, the sliding locking structure for the surgical retractor 4 is integrally placed on the guide rail 1 or other supporting bodies, and the limiting sliding groove 303 is connected with the guide rail 1 or other supporting bodies in a sliding fit mode. According to actual need, the whole sliding adjustment of the sliding locking structure for the surgical retractor 4 is carried out to the position needing to be fixed, the limiting sliding groove 303 is reduced to tightly hold the guide rail 1 or other supporting bodies, and the adjusting and fixing functions are realized. Specifically, in this embodiment, through the design of the lock nut 31 and the compression pull rod 302, only the lock nut 31 needs to be rotated to drive the compression pull rod 302 to move, and the compression pull rod 302 drives the second limit block 301 to be close to or far away from the first limit block 82, so as to change the width of the limit sliding groove 303, thereby enabling the surgical retractor 4 to be locked at a preset position by the sliding locking structure, or to be taken down from a preset position.

The utility model relates to a tractive device for surgery operation can realize adjusting and fixing the angle and the position of drag hook in a plurality of angular flexibility, adapts to the operating range of operation, has saved medical personnel's physical power, has indirectly improved the quality and the effect of operation.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

In the description of the present invention, it should be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, when referring to the orientation or positional relationship indicated in the drawings, are used for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

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 interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Claims

1. A surgical retractor comprising: comprises a guide rail and at least one drag hook component arranged on the guide rail; the draw hook assembly comprises a sliding locking mechanism and a draw hook, the sliding locking mechanism is slidably arranged on the guide rail, and the draw hook is arranged on the sliding locking mechanism.

2. The surgical retractor of claim 1 wherein: the draw hook comprises a hook body, an outer end joint, a metal hose, a locking body and a metal wire; the hook body is arranged at one end of the outer end joint, and the other end of the outer end joint is connected with one end of the metal hose; a mounting hole penetrating through the locking body is formed above the locking body, and a sliding groove with a downward opening and a first limiting block protruding downwards are formed below the locking body; the mounting holes comprise a first mounting hole and a second mounting hole which are coaxially penetrated, and the diameter of the first mounting hole is smaller than that of the second mounting hole; the other end of the metal hose is communicated with the first mounting hole; an elastic degree adjusting mechanism is arranged at one end where the second mounting hole is located; and two ends of the metal wire are respectively connected with the outer end connector and the tightness adjusting mechanism.

3. The surgical retractor of claim 2 wherein: the metal hose is a bulb tube series connection type metal hose, the metal hose comprises a front half section connected with the hook body and a rear half section connected with the locking body, and the outer diameter of the front half section is smaller than that of the rear half section; the front half section and the rear half section are connected through a pipe sleeve, and the pipe sleeve comprises a tubular section and a conical section, wherein the outer diameter of the tubular section is the same as that of the rear half section and is connected with the rear half section, and the outer diameter of the conical section gradually decreases to be the same as that of the front half section and is connected with the front half section.

4. The surgical retractor of claim 2 wherein: the tightness adjusting mechanism comprises an adjusting pull rod and an adjusting nut, the adjusting pull rod comprises a connecting part and a threaded part, the connecting part is connected with the metal wire, and the adjusting nut is in threaded connection with the threaded part; and the second mounting hole is provided with a limiting connecting sleeve, and the adjusting pull rod is accommodated in the limiting connecting sleeve.

5. The surgical retractor of claim 4 wherein: the outer end of the threaded portion protrudes outwards relative to the end portion of the limiting connecting sleeve, and the inner end of the adjusting nut is in limiting and abutting fit with the end portion of the limiting connecting sleeve.

6. The surgical retractor of claim 5 wherein: an anti-rotation limiting surface is arranged on the connecting part, and an anti-rotation limiting bulge is correspondingly arranged on the inner wall of the limiting connecting sleeve; the hook body is detachably connected with the outer end joint.

7. The surgical retractor of claim 2 wherein: the sliding locking mechanism comprises a pressing body and a locking nut, the pressing body comprises a base, a second limiting block and a pressing pull rod, the second limiting block is arranged below one side of the base, the base is limited in the sliding groove and is in sliding fit with the sliding groove, a limiting sliding groove is formed between the first limiting block and the second limiting block, and the limiting sliding groove is in sliding fit with the guide rail; the pressing pull rod protrudes and extends outwards from one side, far away from the second limiting block, of the base along the horizontal direction; the surface of the compression pull rod is provided with threads, and the locking nut is sleeved on the compression pull rod and is in threaded fit with the compression pull rod.

8. The surgical retractor of claim 7 wherein: the first limiting blocks protrude downwards from the edges of two sides of the sliding groove and extend, limiting grooves are formed between the first limiting blocks, and the width of each limiting groove is smaller than the diameter of the locking nut so as to form resisting fit; the second limiting block slides through the limiting groove and then forms the limiting sliding groove with the first limiting block.

9. The surgical retractor of claim 8 wherein: the opposite surfaces of the first limiting block and the second limiting block are inclined surfaces so that the limiting sliding grooves form dovetail grooves.

10. A surgical pulling apparatus as defined in claim 9, wherein: the lower surface of the locking body is provided with a ball corresponding to the limiting sliding groove.