CN218739675U

CN218739675U - Multifunctional surgical instrument for laparoscope

Info

Publication number: CN218739675U
Application number: CN202220354090.4U
Authority: CN
Inventors: 张维胜; 王涛; 张洪来; 陈一锋; 王帅
Original assignee: GANSU PROVINCIAL HOSPITAL
Current assignee: GANSU PROVINCIAL HOSPITAL
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2023-03-28
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a multifunctional surgical instrument for laparoscope, which belongs to the field of medical instruments and comprises a handle body, a suction tube and a retraction device; a suction channel and a drawing channel which are connected are arranged in the handle body; the suction tube is made of a non-metal hard material, the near end of the suction tube is detachably and fixedly connected to the suction channel, and the side wall of the far end of the suction tube is provided with a suction hole; the retracting device comprises a sleeve, a retracting rope, a retracting head and an operating trigger; the far end of the sleeve extends into the suction channel along the drawing channel, and the far end and the near end of the sleeve are respectively fixed at the far end of the suction tube and the near end of the drawing channel; the traction head is axially and movably arranged at the far end of the sleeve and comprises a body and an elastic sheet, wherein the near end of the body is connected with the far end of the sleeve, and the far end of the body is separated from the far end of the elastic sheet in a free state; the operation trigger is movably connected to the handle body, the far end and the near end of the traction rope are fixedly connected with the traction head and the operation trigger respectively, and an elastic reset piece is connected between the operation trigger and the handle body. The utility model discloses can avoid disturbing the supersound sword, conveniently expand the field of vision again.

Description

Multifunctional surgical instrument for laparoscope

Technical Field

The utility model relates to the field of medical instruments, in particular to a multifunctional surgical instrument for a laparoscope,

background

At present, the incidence rate of rectal cancer in China continuously rises, most of rectal cancer in a local progressive stage is subjected to operation due to huge tumor bodies or newly-assisted radiotherapy and chemotherapy, and the problems of vein and lymphatic vessel blockage, radiotherapy and chemotherapy inflammatory infiltration and the like exist more or less in the laparoscopic operation process, so that a large amount of edema liquid generally diffuses in the operation field in the operation. The main operation cutting instrument of carrying out peritoneoscope rectal cancer radical operation at present is the ultrasonic knife, and to this type of rectal cancer patient, can produce a large amount of water smoke because of ultrasonic vibration at ultrasonic knife cutting in-process and cover in the peritoneoscope camera lens, cause the art field unclear, be difficult to observe surrounding tissue internal organs, seriously influence the operation security.

Aiming at the problem of edema fluid diffusion in an operative field, the best intraoperative treatment method is to use a suction device under a laparoscope for suction. However, the existing suction apparatus has certain difficulties: firstly, the suction apparatus on the market is made of metal (aluminum alloy), an operator often holds the suction apparatus with the left hand to continuously suck water mist in a surgical area during operation and performs surgical area cutting by using an ultrasonic knife, as is well known, the ultrasonic knife most avoids touching a metal instrument during operation, however, laparoscopic surgery generally adopts the chopstick effect of a long-handle instrument to operate, the situation that the instruments are staggered is inevitable, particularly, the use of the suction apparatus needs to be accompanied with the dissociating process of the whole rectum when a large amount of water mist is generated, which causes the phenomenon of 'racking' of the metal suction apparatus and the ultrasonic knife in the surgery, and therefore, the problem needs to be solved in order to ensure the safety of the laparoscopic rectal cancer surgery; secondly, the main separation work of the laparoscopic rectal cancer radical operation is completed in a narrow pelvic cavity, and particularly, the more visible space is precious when the tumor is large, so that an operator or an assistant is required to continuously retract the rectum to fully expose the operative field, but in actual operation, the operator holds the ultrasonic scalpel by the right hand, and only enters one instrument by the left hand to retract or attract, however, the existing laparoscopic attractor has a single function (only attracting and flushing functions) and does not have a good retracting function, so that the laparoscopic rectal cancer surgical field cannably called "cunjin" pelvic cavity operation cannot be fully used, and therefore, the problem also needs to be well solved in order to ensure the smoothness of the laparoscopic rectal cancer operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the aspirator made of metal material interferes the ultrasonic knife and the visual field is influenced by narrow operation space in the laparoscopic surgery process in the prior art, and the utility model aims to provide a multifunctional surgical instrument for the laparoscope.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a multi-functional surgical instrument for laparoscopy comprising:

the handle body is internally provided with a suction channel and a drawing channel connected with the suction channel;

the suction tube is made of a non-metal hard material, the near end of the suction tube is detachably and fixedly connected to one port of the suction channel, and the side wall of the far end of the suction tube is provided with a suction hole;

the retracting device comprises a sleeve, a retracting rope, a retracting head and an operating trigger; the distal end of the sleeve extends into the aspiration channel along the aspiration channel, the distal end of the sleeve is fixed at the distal end of the aspiration tube, and the proximal end of the sleeve is fixed at the proximal end of the aspiration channel; the distraction head is axially and movably arranged at the distal end of the sleeve; the traction rope is arranged in the sleeve in a penetrating mode, and the far end of the traction rope is fixedly connected with the retraction head; the operation trigger is movably connected to the handle body and fixedly connected with the near end of the pulling rope, and an elastic resetting piece is connected between the operation trigger and the handle body; the pulling head comprises a body and an elastic sheet, wherein the body and the elastic sheet are connected at the near end, and the far end is separated from each other in a free state.

Preferably, the operating trigger is rotatably connected to the handle body, and the operating trigger is fixedly connected to the proximal end of the pulling rope through a rack and pinion mechanism.

Preferably, the elastic restoring member is a helical compression spring, and the helical compression spring is fixedly connected between the handle body and a rack in the rack-and-pinion mechanism.

Furthermore, a three-way valve is installed on the handle body, one port of the three-way valve is connected with the other port of the suction channel, and the other two ports of the three-way valve are respectively used for connecting suction equipment and flushing equipment.

Preferably, a suction button and a flushing button are provided on the handle body for controlling the suction device and the flushing device, respectively.

Preferably, the inner diameter of the sleeve is adapted to the diameter of the pulling rope.

Preferably, a sealing plug is arranged at the joint of the drawing channel and the suction channel.

Preferably, the handle body is further provided with a locking mechanism for locking the operating trigger, the locking mechanism comprises a locking lever which is rotatably connected to the handle body and a latch which is arranged at the end of the locking lever, and the latch is matched with a gear in the rack-and-pinion mechanism.

Preferably, two rows of the suction holes are symmetrically arranged on the side wall of the far end of the suction tube, the diameter of each suction hole is 1.5mm, and two adjacent suction holes in each row are arranged at an interval of 2 mm.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model reside in that:

1. due to the arrangement of the suction tube made of the non-metallic hard material, when the edema fluid in the operation field is treated by the suction tube, the interference influence on the ultrasonic knife can be effectively avoided, so that the working effect of the ultrasonic knife is improved;

2. due to the arrangement of the retracting device, the retracting head at the far end of the suction tube can be controlled to stretch out and bounce by operating the trigger, the assembly of the interference field of vision can be effectively retracted, the operation effect and efficiency are improved, the retracting device fully utilizes the channel formed by the suction tube, the configuration of two functions of suction and retraction of the surgical instrument is realized on the premise of not increasing the size, and the application range of the surgical instrument is further improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the drawing, 1-handle body, 11-suction channel, 12-drawing channel, 13-suction button, 14-flushing button, 2-suction tube, 21-suction hole, 3-retraction device, 31-sleeve, 311-blocking sheet, 32-drawing rope, 33-retraction head, 331-body, 332-elastic sheet, 34-operation trigger, 35-elastic reset piece, 4-sealing plug, 5-three-way valve, 6-locking mechanism, 61-locking lever and 62-latch.

Detailed Description

The following description will further explain embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship of the structure of the present invention based on the drawings, and are only for the convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The terms "first" and "second" in the present technical solution are only used to distinguish the same or similar structures or the corresponding structures having similar functions, and are not the arrangement of the importance of the structures, nor are they the order, or comparison of the sizes, or other meanings.

In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in relation to the present scheme in specific terms according to the general idea of the present invention.

Example one

A multifunctional surgical instrument for laparoscope, as shown in figures 1 and 2, comprises a handle body 1, a suction tube 2 and a retracting device 3.

The grip body 1 is configured in a pistol-like configuration made of a non-metallic hard material such as hard plastic, and a suction passage 11 and a drawing passage 12 connected to the suction passage 11 are provided inside the grip body 1. One of the ports of the suction channel 11 opens at the distal end of the shank body 1, and the other port of the suction channel 11 opens at the top surface of the shank body 1. One of the ports of the pull channel 12 is connected to the suction channel 11, and the other port of the pull channel 12 opens on the side wall at the proximal end of the handle body 1. Here, the proximal end refers to a direction close to the operator (operator), and the distal end refers to a direction away from the operator (operator).

The suction tube 2 is configured as a tubular structure made of a non-metal hard material, such as a hard plastic, the proximal end of the suction tube 2 is detachably and fixedly connected to one of the ports (the port at the distal end of the handle body 11) of the suction passage 11 by a screw thread, a socket, or the like, and the side wall of the distal end of the suction tube 2 is opened with a suction hole 21. For example, in the present embodiment, the suction tube 2 is configured as a rigid plastic tube with a length of 450mm, a diameter of 5mm, and a wall thickness of 0.5 mm; two rows of four suction holes 21 are symmetrically arranged on the far-end side wall of the suction tube 2, the diameter of each suction hole 21 is 1.5mm, and two adjacent suction holes 21 in each row are arranged at intervals of 2mm (namely, the interval between the centers of circles is 3.5 mm).

The retracting device 3 is used for retracting the tissue at the distal end of the suction tube 2, so as to enlarge the surgical field, and the retracting device 3 specifically comprises a sleeve 31, a pulling rope 32, a retracting head 33, an operating trigger 34 and an elastic restoring piece 35.

Wherein the sleeve 31 is constructed as a hollow plastic tube, the distal end of the sleeve 31 enters the pulling channel 12 from the proximal end of the handle body 1, extends into the suction channel 11, and the distal end of the sleeve 31 is fixed at the distal end of the suction tube 2 by means of bonding or welding, while the proximal end of the sleeve 31 is correspondingly fixed at the proximal end of the pulling channel 12.

The pulling head 33 is axially movably mounted inside the distal end of the cannula 31. The retractor head 33 includes a body 331 and a spring plate 332 which are connected at a proximal end and separated from each other at a distal end in a free state, for example, the body 331 and the spring plate 332 in the retractor head 33 are both made of a plastic material having elasticity and are integrally configured at the proximal end, the body 331 and the spring plate 332 at the distal end are separated from each other, and under the elastic action, the body 331 and the spring plate 332 are moved away from each other, so that when the retractor head 33 is extended from the distal end of the sleeve 31, the body 331 and the spring plate 332 are moved away from each other, thereby retracting the tissue being retracted, and when the retractor head 33 is extended into the sleeve 31, the body 331 and the spring plate 332 are moved close to each other under the restriction of the sleeve 31, thereby restoring the retracted tissue to its original state. It should be understood that the distal end of the sleeve 31 is provided with a stopper 311 for stopping the pull head 33 from falling off, and the stopper 311 is disposed between the body 331 and the spring piece 332.

The pulling rope 32 is inserted into the sleeve 31, the distal end of the pulling rope 32 is fixedly connected to the retracting head 33, and the retracting head 33 can be pushed out of the distal end of the sleeve 31 by pushing the pulling rope 32 to move towards the distal end of the sleeve 31, thereby performing a tissue retracting operation. It will be appreciated that when the traction channel 12 is coaxial with the suction channel 11, the sleeve 31 and the traction rope 32 can be arranged straight, so that both the sleeve 31 and the traction rope 32 can be made as rigid members, for example of rigid plastic, so that the traction rope 32 can exert a sufficient pushing force on the retraction head 33. Or in another preferred embodiment, when there is a certain angle between the drawing channel 12 and the suction channel 11, or when the drawing channel 12 and the suction channel 11 are arranged in a curved shape, the sleeve 31 is first configured to be made of soft plastic, and then the inner diameter of the sleeve 31 is configured to be matched with the diameter of the drawing rope 32, and the drawing rope 32 is configured to be a metal rope having both rigidity and toughness, so as to ensure that the drawing rope 32 can be both bent and can also ensure the transmission of the pushing force.

The operating trigger 34 is movably connected to the handle body 1, and the operating trigger 34 is fixedly connected to the proximal end of the pulling rope 32, so that pushing force is applied to the pulling rope 32 by operating the trigger 34. In this embodiment, the operating trigger 34 is fixedly connected to a pivot shaft which is rotatably connected to the handle body 1, a gear is fixedly mounted on the pivot shaft, a rack which is engaged with the gear is slidably connected to the handle body 1, and the proximal end of the pulling rope 32 is fixedly connected to the rack, so that the operating trigger 34 is fixedly connected to the proximal end of the pulling rope 32 through a rack-and-pinion mechanism. The elastic return element 35 is connected between the operating trigger 34 (in particular the rack) and the handle 1, for example the elastic return element 35 is configured as a helical compression spring in which the pulling rope 32 is inserted.

When in use, the port of the suction channel 11 positioned at the top of the handle body 1 is connected with suction equipment, and when water mist is generated in an operation field, the water mist can be sucked out along the suction pipe 2 and the suction channel 11 by negative pressure generated by the suction equipment; when the tissues shield the visual field, the operating trigger 34 drives the gear to rotate, the gear drives the rack to slide, the rack drives the pulling rope 32 to move and push the pulling head 33 out of the far end of the sleeve 31, and under the elastic action of the pulling head 33, the body and the elastic sheet are separated from each other, so that the tissues shielding the visual line are retracted; after the retraction operation is completed, the operating trigger 34 is released, and the pulling head 33 is held in the sleeve 31 by the elastic force of the elastic restoring member 35.

It can be understood that, in order to maintain the negative pressure suction effect, a sealing plug 4 is arranged at the connection of the drawing channel 12 and the suction channel 11, the sealing plug 4 is made of elastic material such as rubber, and a through hole matched with the sleeve 31 is arranged at the middle part.

Example two

Wherein, a three-way valve 5 is installed on the handle body 1, one port of the three-way valve 5 is connected with the other port (the port opened on the top surface of the handle body 1) of the suction passage 11, and the other two ports of the three-way valve 5 are respectively used for connecting the suction apparatus and the flushing apparatus. This arrangement allows two communication states to be provided by operating the three-way valve 5, namely, the suction passage 11 communicating with the suction apparatus and the suction passage 11 blocking the flushing apparatus, and the suction passage 11 blocking the suction apparatus and the suction passage 11 communicating with the flushing apparatus.

Further, for operation, a suction button 13 and a flushing button 14 for controlling the operation of the suction device and the flushing device, respectively, are provided on the handle body 1.

EXAMPLE III

Wherein, a locking mechanism 6 for locking the position of the operating trigger 34 is further installed on the handle body 1, the locking mechanism 6 comprises a locking lever 61 rotatably connected to the handle body 1 through a rotating shaft and a latch 62 provided on the end of the locking lever 61, and the latch 62 is adapted to the gear in the rack and pinion mechanism. With this arrangement, the rotation of the gear is restricted by the latch 62 by operating the lock lever 61, so that the restoring action of the elastic restoring member 35 is disabled, and the position of the gear, and therefore the position of the operating trigger 34, is maintained by the elastic force provided by the elastic restoring member 35, and the position of the operating trigger 34 is easily maintained by the lever principle.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A multi-functional surgical instrument for laparoscopy, characterized by: the method comprises the following steps:

the retracting device comprises a sleeve, a retracting rope, a retracting head and an operating trigger; the distal end of the sleeve extends into the aspiration channel along the aspiration channel, the distal end of the sleeve is fixed at the distal end of the aspiration tube, and the proximal end of the sleeve is fixed at the proximal end of the aspiration channel; the distraction head is axially and movably arranged at the far end of the sleeve; the traction rope is arranged in the sleeve in a penetrating mode, and the far end of the traction rope is fixedly connected with the retraction head; the operation trigger is movably connected to the handle body and fixedly connected with the near end of the pulling rope, and an elastic reset piece is connected between the operation trigger and the handle body; the pulling head comprises a body and an elastic sheet, wherein the body and the elastic sheet are connected at the near end, and the far end is separated from each other in a free state.

2. A multifunctional surgical instrument for laparoscope as recited in claim 1, wherein: the operation trigger is rotatably connected to the handle body and fixedly connected with the near end of the pulling rope through a gear rack mechanism.

3. A multi-functional surgical instrument for laparoscope as recited in claim 2, wherein: the elastic reset piece is a spiral compression spring which is fixedly connected between the handle body and a rack in the gear rack mechanism.

4. A multi-functional surgical instrument for laparoscope as recited in claim 1, wherein: the handle body is provided with a three-way valve, one port of the three-way valve is connected with the other port of the suction channel, and the other two ports of the three-way valve are respectively used for connecting suction equipment and flushing equipment.

5. A multifunctional surgical instrument for laparoscope as recited in claim 4, wherein: the handle body is provided with a suction button and a flushing button which are respectively used for controlling the suction device and the flushing device.

6. A multifunctional surgical instrument for laparoscope as recited in claim 1, wherein: the inner diameter of the sleeve is matched with the diameter of the traction rope.

7. A multifunctional surgical instrument for laparoscope as recited in claim 1, wherein: and a sealing plug is arranged at the joint of the drawing channel and the suction channel.

8. A multifunctional surgical instrument for laparoscope as recited in claim 2, wherein: the handle body is further provided with a locking mechanism for locking the operation trigger, the locking mechanism comprises a locking lever which is rotatably connected to the handle body and a latch which is arranged at the end part of the locking lever, and the latch is matched with a gear in the gear rack mechanism.

9. A multi-functional surgical instrument for laparoscope as recited in claim 1, wherein: two rows of the suction holes are symmetrically arranged on the far-end side wall of the suction tube in the central symmetry mode, the diameter of each suction hole is 1.5mm, and every two adjacent suction holes in each row are arranged at an interval of 2 mm.