CN210903132U

CN210903132U - Surgical instrument system

Info

Publication number: CN210903132U
Application number: CN201921191243.2U
Authority: CN
Inventors: 吴超; 袁万江
Original assignee: Chiye Industry Shanghai Co ltd
Current assignee: Chiye Industry Shanghai Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-07-03
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to the technical field of surgical instruments, and aims to provide a surgical instrument system which can be combined with working ends with different functions, is convenient to assemble and disassemble, achieves the functions of a plurality of surgical instruments on one platform, only changes the working end part of the instrument when in use each time, greatly reduces the cost, enables the disposable use of the surgical instruments to be possible, can ensure the performance and the sterility of the surgical instruments simultaneously, and has more accurate operation; because the control handle can be repeatedly used, the operation stability and the comfort of a doctor are fully considered in the design, and the hand fatigue of the user can be effectively relieved. The utility model provides a surgical instrument system, include: a control handle portion and an instrument working end portion.

Description

Surgical instrument system

Technical Field

The utility model relates to the technical field of surgical instruments, in particular to a surgical instrument system which is particularly used for surgical instruments which adopt opening-closing type relative motion, such as biopsy forceps, surgical scissors, surgical forceps and the like.

Background

Surgical instruments are used in surgical procedures and are relatively expensive to manufacture due to the high demands placed upon the precision and accuracy of the instruments. Most surgical instruments are used by repeated disinfection, the performance of the instruments is difficult to ensure after long-term use, the problems of instrument incision passivation, untight occlusion and the like are easily caused, the surgical instruments need to be replaced temporarily, the surgical quality is influenced, and the anesthesia time is wasted. Multiple use also increases the risk of infection.

The structure of the surgical instrument is mainly divided into two parts, one part is a handle end for controlling operation, and the other part is a working end for performing operation under the operation of the handle end. In order to ensure the operation quality, the operation precision is very high in the operation process, so that the handle end and the working end of the traditional open-close type relative movement surgical instrument are integrated, a doctor can accurately perform the operation through the control of the handle end, any part of the surgical instrument breaks down, the surgical instrument cannot be normally used, the maintenance or the integral replacement is required, and the cost is high. If the structure is designed to be a structure that the handle end and the operation end can be separated and combined, how to ensure the operation accuracy is a technical problem to be solved.

In addition, the handle of traditional open-close type surgical instruments mostly lacks humanized design, and the design is simple and crude, the function is single, whole list is thin and the palm area of contact is little, and operating space during the operation is narrow and small, and operating angle is limited, and the doctor must reach the operation purpose through the rotary control surgical instruments of each joint of hand, arouses the fatigue and the damage of finger, palm, wrist joint and shoulder easily in long-time use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a surgical instrument system which can be combined with working ends with different functions, is convenient to assemble and disassemble, achieves the functions of a plurality of surgical instruments on one platform, and can ensure the performance and the sterility of the surgical instruments, thereby greatly reducing the cost and enabling the disposable use of the surgical instruments to be possible; meanwhile, the function end can be controlled by an operator with one hand to rotate 360 degrees, the operation difficulty is reduced, the operation is safer and more accurate, and the hand fatigue of the user can be effectively relieved.

The purpose of the utility model is realized like this:

a surgical instrument system, comprising: a control handle portion and an instrument working end portion.

The instrument working end portion comprising: the operating rod is provided with a connecting gear at the proximal end, the open-close type surgical instrument is connected at the distal end, an operating control shaft is arranged in the operating rod and penetrates through the connecting gear to extend out of the operating rod, and a flange is arranged at the end of one end of the operating control shaft, which penetrates out of the connecting gear to the outside of the operating rod.

Wherein the open-close type surgical instrument, which can be biopsy forceps, surgical scissors, surgical forceps or any other existing open-close type surgical instrument, has a first part and a second part which can rotate mutually at an angle, the first part is fixedly connected to the distal end of the operating rod, and the second part is fixedly connected to the distal end of the operating control shaft and is rotatably connected with the first part.

The outer contour line of the control handle part is of a gun-shaped structure and comprises: the control handle comprises a control handle main body and a holding part which forms an inclination angle larger than 90 degrees with the control handle main body and extends outwards and downwards, an opening is arranged at the included angle of the control handle main body and the holding part, and a control handle extends into the control handle main body from the opening and is rotatably connected with a control rod arranged in the control handle main body.

Wherein, the first half of brake valve lever main part has one can wind the connecting axle upward rotation's upper cover, controls through a switch structure the pinning and the opening of upper cover, switch structure's controller is located the outside of brake valve lever main part switch structure's rear be equipped with one with connect gear matched with gear channel, gear channel's cell body trend for move towards from top to bottom and with the center pin of brake valve lever main part is perpendicular, gear channel's upper and lower both ends are the opening.

The latter half in the brake lever main part is equipped with a control chamber, the one end setting of control lever is in the control chamber and with the control chamber has the same center pin, the other end of control lever extends to the outside in control chamber shown, the outside cover of control lever is equipped with a spring, the spring is located the control chamber, the control lever be located the tip department of the outer one end in control chamber is equipped with a connecting slot, connecting slot has upwards and forward opening, so that make the tip flange of operation control axle can hold and fix in the connecting slot, the control lever be located one end in the control chamber through a connecting portion with the control handle rotationally connects.

Still be equipped with a set of rotation adjusting gear in the brake valve lever main part, constitute by a coaxial pivoted hand dial gear and an adjusting gear, hand dial gear exposes through an handle hole part the brake valve lever main part, adjusting gear is located under the gear channel and when connecting gear is located when the gear channel is interior, adjusting gear with connecting gear intermeshing, the wheel footpath of hand dial gear is greater than adjusting gear's wheel footpath.

The utility model provides a surgical instrument system owing to adopted above-mentioned technical scheme, makes it compare with prior art and has following beneficial effect:

1. the joint of the inner control element of the handle and the working end is relatively independent and sealed and does not interfere with each other, and the handle is used as an instrument platform and adopts a unified port to conveniently and stably connect the working ends with different functions.

2. The function end is controlled by a single hand to rotate by 360 degrees through the driving of a gear, so that the operation difficulty is reduced; because the wheel footpath of gear is dialled to the hand is greater than the wheel footpath of adjusting gear has changed gear drive ratio, makes doctor's operation more light, slows down hand fatigue, provides very big facility to accomplishing the operation in narrow and small operation space and difficult angle.

3. The use cost of the surgical instrument is reduced; only the working end needs to be replaced to achieve different operation purposes, and the patient can use the disposable surgical instrument possibly, so that the excellent performance and the sterility of the surgical instrument can be ensured.

4. But handle portion repeatedly usable, the use of fully considering doctor feels in the design, effectively improve with palm area of contact and increase the control point of exerting oneself of finger, make the operation more comfortable, bring better operation and feel, through increasing doctor's hand and handle area of contact to alleviate hand fatigue and damage.

Wherein, the switch structure can adopt the spring switch, includes: the lock catch is arranged in the control handle body, one part of the lock catch is located in the control handle body, the other part of the lock catch is exposed out of the control handle body, and a lock groove used for containing the top of the lock rod is formed in the upper cover. The spring switch may be of a construction known in the art to extend or retract and lock the locking bar with each depression.

Drawings

Further advantages and features of the invention are illustrated by the following description of an embodiment of the invention, given by way of example and not by way of limitation, with reference to the accompanying drawings, in which:

fig. 1 is a schematic cross-sectional view of a preferred embodiment of the surgical instrument system of the present invention, in which the open/close surgical instrument connected to the distal end of the operating rod is a biopsy forceps.

Fig. 2 is a schematic structural view of a control handle portion of the embodiment shown in fig. 1.

Fig. 3 is a schematic structural view of the working end portion of the instrument of the embodiment shown in fig. 1.

Detailed Description

A surgical instrument system, comprising: a control handle portion 1 and an instrument working end portion 2.

Fig. 1-3 show the structure of a preferred embodiment of the present invention, wherein the open-close type surgical instrument is exemplified by a biopsy forceps. Of course, in practice, the biopsy forceps may be replaced by surgical scissors, forceps, or any other surgical instrument that employs open-close type relative motion.

The control handle part 1 is a gun-shaped structure made of high-quality medical plastics, as shown in fig. 1, a holding part 101 with an external line conforming to the ergonomic design extends outwards from the rear end of the control handle body and downwards at an included angle larger than 90 degrees, an opening (not shown in the figure) is arranged at the included angle, and a control handle 102 extends into the control handle body from the opening and is rotatably connected with a control rod 104 arranged in the control handle body through a connecting part 103.

Wherein, the front half part of the control handle main body is provided with an upper cover 108 which can rotate upwards around the connecting shaft, a spring switch which is composed of a switch spring 109, a lock catch 110 and a lock rod 111 is arranged under the upper cover 108, the upper cover 108 is provided with a lock groove 107 which is used for accommodating the top part of the lock rod 111, a part of the lock catch 110 is exposed out of the handle main body, and the opening and the locking of the upper cover 108 are realized by pressing the lock catch 110.

As shown in connection with fig. 2, the instrument working end portion 2 comprises: the operation rod 21 and the operation control shaft 22 are provided with a connecting gear 23 at the proximal end of the operation rod 21, and the distal end is used for connecting an open-close type surgical instrument 25. The operation control shaft 22 is provided inside the operation lever 21 and protrudes outside the operation lever 21 through a connecting gear 23, and the end portion protruding outside has a flange 24.

Returning to fig. 1 again, a gear channel 113 matched with the connecting gear 23 is arranged at the rear of the switch structure, the groove body of the gear channel 113 is vertically oriented and is vertical to the central shaft X of the control handle main body, and the upper end and the lower end of the gear channel 113 are provided with openings. A control cavity 105 is arranged at the rear half part in the control handle body, one end of the control rod 104 is positioned in the control cavity 105, the other end of the control rod extends to the outside of the control cavity 105, and the control rod 104 and the control cavity 105 are coaxially arranged. A spring 106 is sleeved outside the control rod 104, the spring 106 is positioned in the control cavity 105, a connecting clamping groove 114 is arranged at the end part of one end of the control rod 104 positioned outside the control cavity 105, the connecting clamping groove 114 is provided with an upward and forward opening so that the end flange 24 of the operation control shaft 22 can be accommodated and fixed in the connecting clamping groove 114, and one end of the control rod 104 positioned in the control cavity 105 is rotatably connected with the control handle 102 through the connecting part 103.

A group of rotary adjusting gears is also arranged in the control handle body and consists of a hand-dialing gear 115 and an adjusting gear 116 which rotate coaxially, and the diameter of the hand-dialing gear 115 is larger than that of the adjusting gear 116. The hand dial gear 115 partially exposes the control handle body through an operation hole, and the adjustment gear 116 is located right below the gear channel 113 and the adjustment gear 116 is engaged with the connection gear 23 when the connection gear 23 is located in the gear channel 113.

The open-close surgical instrument 25 may be a biopsy forceps, a surgical scissors, a surgical forceps, or any other open-close surgical instrument known in the art. Taking biopsy forceps as an example in the present embodiment, the biopsy forceps comprises a first forceps body 251 and a second forceps body 252 which are rotatable at an angle with respect to each other, the first forceps body 251 is fixedly connected to the distal end of the operation rod 21, and the second forceps body 252 is fixedly connected to the distal end of the operation control shaft 22 and rotatably coupled to the first forceps body 251.

When in use, the lock is firstly unlocked: the lock 110 is pressed, and the lock lever 111 is moved downward by the spring 109 to escape from the lock groove 107, so that the upper cover 108 is unlocked. The upper cover 108 is opened, the end of the working end 2 of the instrument close to the connecting gear 23 is placed into the joint of the control handle part 1, the connecting gear 23 falls into the gear channel 113, the flange 24 falls into the connecting slot 114 and is embedded therein, the upper cover 108 is closed, the lock catch 110 is pressed upwards, the lock rod 111 enters the lock groove 107 upwards, the upper cover 108 and the lower end of the handle are locked, and the connecting gear 23 is locked in the channel 113. The index finger pulls the hand-pulling gear 115 to drive the adjusting gear 116, and the adjusting gear 116 drives the connecting gear 23 engaged with the adjusting gear to rotate around the operating shaft 21, so that the biopsy forceps body (the open-close type surgical instrument 25) connected to the distal end of the operating shaft 21 can rotate 360 degrees. The transmission ratio is changed by the combination of the hand dial gear 115 and the adjustment gear 116, and the best feel and the rotational speed of the working end part 2 of the instrument are obtained by adjusting the use of the hand dial gear 115.

The control handle 102 is clamped to the holding portion 101, and drives the control rod 104 to move forward, so as to drive the operation control shaft 22 embedded therein to move forward, and further drive the second clamp body 252 connected to the distal end of the operation control shaft 22 to rotate and open relative to the first clamp body 251, at which time the spring 106 is compressed. When the surgeon releases the control handle 102, the spring 106 is reset, which drives the operation control shaft 22 to move backward, and the forceps body is closed. The biopsy forceps are opened and closed up and down repeatedly, and the biological tissue is cut in an occluded manner through the relative movement of the first forceps body 251 and the second forceps body 252, so that the purpose of a surgical instrument is achieved.

Although the present invention has been described in terms of the preferred embodiments, it is not intended that the scope of the invention be limited to the exact construction and arrangement shown and described, and it is intended that all equivalent alterations and modifications that can be devised readily by those skilled in the art based on the foregoing description be embraced by the scope of the invention.

Claims

1. A surgical instrument system, comprising:

an instrument working end portion comprising: a control rod, the proximal end of the control rod is provided with a connecting gear, the distal end of the control rod is connected with an open-close type surgical instrument, an operation control shaft is arranged in the control rod and passes through the connecting gear to extend out of the control rod, the end of one end of the operation control shaft, which penetrates out of the connecting gear, is provided with a flange, the open-close type surgical instrument is provided with a first part and a second part which can rotate at an angle relative to each other, the first part is fixedly connected with the distal end of the control rod, and the second part is fixedly connected with the distal end of the operation control shaft and is rotatably coupled with the first part; and

a control handle portion having a gun-shaped outer contour, comprising: the control handle comprises a control handle main body and a holding part which forms an inclination angle larger than 90 degrees with the control handle main body and extends outwards and downwards, the external line of the holding part accords with the human engineering design, an opening is arranged at the included angle of the control handle main body and the holding part, and a control handle extends into the control handle main body from the opening and is rotatably connected with a control rod arranged in the control handle main body; wherein:

the front half part of the control handle main body is provided with an upper cover capable of rotating upwards around a connecting shaft, the locking and the opening of the upper cover are controlled through a switch structure, a controller of the switch structure is positioned outside the control handle main body, a gear channel matched with the connecting gear is arranged behind the switch structure, the direction of a groove body of the gear channel is vertical and vertical, and the upper end and the lower end of the gear channel are provided with openings;

the rear half part in the control handle main body is provided with a control cavity, one end of the control rod is arranged in the control cavity and has the same central shaft as the control cavity, the other end of the control rod extends to the outside of the control cavity, a spring is sleeved outside the control rod and is positioned in the control cavity, a connecting clamping groove is arranged at the end part of one end of the control rod, which is positioned outside the control cavity, and is provided with an upward opening and a forward opening so that an end flange of the operation control shaft can be accommodated and fixed in the connecting clamping groove, and one end of the control rod, which is positioned in the control cavity, is rotatably connected with the control handle through a connecting part;

2. The surgical instrument system of claim 1, wherein: the switch structure is a spring switch, including: the lock catch is arranged in the control handle body, one part of the lock catch is located in the control handle body, the other part of the lock catch is exposed out of the control handle body, and a lock groove used for containing the top of the lock rod is formed in the upper cover.

3. The surgical instrument system of claim 1, wherein: the open-close type surgical instrument is biopsy forceps, surgical scissors, surgical forceps or surgical forceps.