CN111772693A

CN111772693A - Auxiliary device for minimally invasive surgery

Info

Publication number: CN111772693A
Application number: CN202010679151.XA
Authority: CN
Inventors: 张伟文; 彭国会; 王建平
Original assignee: Shenzhen Jifu Medical Technology Co ltd
Current assignee: Shenzhen Jifu Medical Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-16
Also published as: WO2022011884A1

Abstract

The invention discloses an auxiliary device for minimally invasive surgery, which comprises a handle, a control part and a releasable forceps part, wherein an inner anchoring magnet is arranged in the forceps part and is used for matching with external magnetic control equipment and the control part to clamp tissues, an attraction magnet is arranged in the control part, the attraction magnet interacts with the inner anchoring magnet and is used for controlling the opening, closing and clamping of the forceps part and realizing the magnetic attraction and separation with the forceps part, the forceps part further comprises a forceps arm, a fixed rotating pin, a trigger rod, a connecting rod transmission mechanism, a connecting seat and a clamping spring, and the control part further comprises a control core rod, a reset spring, a guide part and a control rod. The auxiliary device can facilitate the operation of abdominal tissues by doctors, reduces the number of openings compared with the traditional operation, is used in combination with an external magnet, is more flexible in traction of a clamping part and more stable in positioning, greatly improves the operation efficiency of an operator, reduces the operation difficulty, reduces the infection risk and relieves the pain of a patient.

Description

Auxiliary device for minimally invasive surgery

Technical Field

The invention relates to the field of medical instruments, in particular to an auxiliary device for minimally invasive surgery.

Background

The minimally invasive surgery is a newly developed surgery method in recent years, is an inevitable trend of the development of future surgery methods, and with the rapid advance of the endoscopic technology and the industrial manufacturing technology, a plurality of traditional open surgeries are replaced by the endoscopic surgery, so that the postoperative pain of patients is greatly relieved.

The traditional operation adopts two to four hole operation methods, namely, a plurality of small incisions with the diameter of 5 to 12 millimeters are formed in different parts of the abdomen, surgeons use various surgical instruments to complete the operation in vitro through the small incisions, and in the operation, organs are in a natural falling state, so that the diseased parts are fully exposed or the operation field is kept clear, a clamping and lifting device is needed to pull and position the organs so as to ensure that the operation is smoothly carried out.

For the patient, one incision is omitted, the chance of infection is reduced, one postoperative pain is reduced, the most representative cholecystectomy is taken as an example, a four-hole method is adopted at the earliest stage, and then three holes or even two holes are improved, however, the number of the holes is reduced, the operation difficulty is increased, high requirements on the operation technique and the skill of a doctor are put forward, and the operation risk degree is increased.

Therefore, there is a need to develop a new auxiliary device for minimally invasive surgery, which can reduce the number of openings, facilitate the surgical operation, reduce the surgical difficulty, reduce the infection risk, improve the surgical efficiency, and alleviate the pain of the patient.

Disclosure of Invention

In order to solve the contradiction between the number of the openings and the operation difficulty, facilitate the minimally invasive operation and reduce the infection risk, the invention provides an auxiliary device for the minimally invasive operation.

The technical scheme of the invention is as follows:

the auxiliary device for minimally invasive surgery comprises a handle, a control part and a releasable forceps part, wherein an inner anchoring magnet is arranged in the forceps part and used for being matched with an external magnetic control device and the control part to clamp tissues, and an attraction magnet is arranged in the control part and used for interacting with the inner anchoring magnet to control the opening and the clamping of the forceps part and realize the magnetic attraction and the separation with the forceps part.

Furthermore, the grasping forceps part further comprises a forceps arm, a fixed rotating pin, a trigger rod, a connecting rod transmission mechanism, a connecting seat and a clamping spring, wherein,

the fixed rotating pin is used as a rotating shaft of the clamp arm and is used for radial positioning connection of the clamp arm;

the trigger rod is connected with the connecting rod to form a hinge mechanism to control the opening and closing of the clamp arms;

the movable rotating pin is connected with the clamp arm and the connecting rod;

the connecting seat is connected with the inner anchoring magnet and is used for fixing the rotating pin;

and the clamping spring is used for triggering the resetting of the rod to promote the closing of the clamp arms.

Furthermore, the clamping spring can also adopt an elastic component.

Furthermore, the connecting rod transmission mechanism consists of a connecting rod and a movable rotating pin, and the connecting rod is connected with the trigger rod and the clamp arm through the movable rotating pin.

Furthermore, the control part further comprises a control core rod, a return spring, a guide piece and a control rod,

the control core bar is used for controlling the opening and closing of the tongs part and the clutch of the attraction magnet and the inner anchoring magnet;

the reset spring is used for restoring the initial position of the attraction magnet;

the guide piece is used for controlling the guide of the core rod and positioning the return spring;

and the control rod is used for connecting the control part and the handle.

Furthermore, the return spring can also adopt an elastic component.

Further, the inner anchoring magnet may be any one of a permanent magnet material or a magnetically permeable material.

Further, the number of the forceps arms is at least two, and at least one forceps arm can rotate.

Further, the control part and the grasping forceps part can adopt an integrated design.

Further, the control part and the handle can be designed integrally.

Compared with the traditional operation, the invention reduces the number of the open holes, simultaneously has more flexible traction on the clamping part and more stable positioning, greatly improves the operation efficiency of an operator, reduces the operation difficulty, reduces the infection risk, relieves the pain of a patient and solves the contradiction between the number of the open holes and the operation risk.

Drawings

FIG. 1: the invention discloses a schematic diagram of an initial state of a minimally invasive surgery auxiliary device.

FIG. 2: the invention discloses a schematic diagram of an opening state of a minimally invasive surgery auxiliary device.

FIG. 3: the invention discloses a release state schematic diagram of a minimally invasive surgery auxiliary device.

FIG. 4: the invention discloses a grasping forceps part schematic diagram of a minimally invasive surgery auxiliary device.

FIG. 5: the invention discloses a schematic diagram of a control part of a minimally invasive surgery auxiliary device.

FIG. 6: the invention discloses a schematic diagram of different states of a handle of a minimally invasive surgery auxiliary device.

FIG. 7: the invention discloses a schematic diagram of the initial state of a control part and a grasping forceps part of a minimally invasive surgery auxiliary device.

FIG. 8: the invention discloses a schematic diagram of the opening state of a control part and a grasping forceps part of a minimally invasive surgery auxiliary device.

FIG. 9: the invention discloses a clamping state schematic diagram of a minimally invasive surgery auxiliary device.

FIG. 10: the invention discloses a release state schematic diagram of a minimally invasive surgery auxiliary device.

FIG. 11: the invention discloses an external traction schematic diagram of a minimally invasive surgery auxiliary device.

Detailed Description

Each serial number and corresponding name are respectively:

01: a grasping part.

0101: a clamp arm.

0102: the rotation pin is fixed.

0103: a connecting rod.

0104: a trigger lever.

0105: a movable rotation pin.

0106: a connecting seat.

0107: an inner anchoring magnet.

0108: the spring is clamped.

02: a control unit.

0201: attracting the magnet.

0202: the core rod is controlled.

0203: a return spring.

0204: a guide member.

0205: a control lever.

03: a handle.

04: the human abdominal wall.

05: a magnet outside the body.

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a schematic view of an initial state of the auxiliary device for minimally invasive surgery of the present invention, fig. 2, a schematic view of an open state of the auxiliary device for minimally invasive surgery of the present invention, and fig. 3, a schematic view of a release state of the auxiliary device for minimally invasive surgery of the present invention, the present invention provides an auxiliary device for minimally invasive surgery, for example, a magnetic anchoring clip, which can be anchored at a site blocking a surgical field or a lesion site during surgery, and a magnet built in an end of the clip is pulled by an external large magnet 05 to facilitate an operator to pull or position a designated site, so as to facilitate surgery.

The magnetic anchoring clamp provided by the invention has three working states of initial, opening and releasing, and mainly comprises a forceps part 01, a control part 02 and a handle 03.

Referring further to fig. 4, a schematic diagram of a grasping forceps of the minimally invasive surgery auxiliary device of the invention, the grasping forceps 01 has two states of opening and closing, and is used for grasping and pulling a target site, and the grasping forceps 01 mainly comprises:

the jawarms 0101 have at least two relatively movable arms, which can be opened and closed, and other clamping assemblies with similar functions, such as grasping members, can be used for the jawarms 0101, which is not limited by the present invention.

A fixed rotation pin 0102 serving as a rotation shaft of the caliper arm 0101 and used for radial positioning connection of the caliper arm 0101;

a connecting rod 0103 connected to the ends of the trigger lever 0104 and the jawarms 0101 through a movable rotation pin 0105 to constitute a connecting rod transmission mechanism;

the trigger rod 0104 is controlled by the control part 02 to axially translate, the clamp arm 0101 is opened through the connecting rod 0103, and when the control part 02 is separated from the clamp grasping part 01, the clamp spring 0108 can restore the original position, so that the clamp arm 0101 is closed;

the movable rotating pin 0105 is used for connecting the jawarms 0101 and the connecting rod 0103, the connecting rod 0103 and the trigger rod 0104 form an articulated mechanism and can rotate radially, and the connecting rod and the movable rotating pin form a connecting rod transmission mechanism.

A connecting seat 0106 for fixing the rotating pin 0102 and connecting the inner anchoring magnet 0107;

the inner anchoring magnet 0107 may be made of a permanent magnet material, and is used for interacting with the external magnet 05, providing traction force in cooperation with an external magnetic control device and a control part, and clamping tissue, and the inner anchoring magnet 0107 may also be made of a magnetic conductive material, which is not limited in the present invention;

the clamping spring 0108 is used for resetting the trigger rod 0104 to close the forceps arm 0101, and other elastic components can be adopted as the clamping spring.

Referring to fig. 5, a schematic diagram of a control portion of the minimally invasive surgery assisting device of the present invention is shown, wherein the control portion 02 is used for connecting the grasping portion 01 and the handle 03, and can transmit the motion of the handle 03 to control the opening and closing or releasing of the grasping portion 01, and mainly includes:

the attraction magnet 0201 can move axially and is used for attracting the inner anchoring magnet 0107, so that the grasping portion 01 is connected with the control portion 02 and used for controlling the opening and the clamping of the grasping portion 01 and realizing the magnetic attraction and the separation with the grasping portion 01.

The control core rod 0202 is controlled by the handle 3, can axially extend and retract, can push the trigger rod 0104 to axially translate when extending out, further enables the forceps part 01 to be opened, and can enable the attraction magnet 0201 and the inner anchoring magnet 0107 to be separated when retracting;

the reset spring 0203 is used for enabling the attraction magnet 0201 to restore the initial position, and the reset spring can also adopt an elastic component;

a guide 0204 for controlling the guiding of the core bar 0202 and positioning one end of the return spring 0203;

and a control rod 0205 used for connecting the control part 02 and the handle 03 and serving as a shell of the control part mechanism.

The control portion 02 and the grasping portion 01 may be integrally designed, and the control portion 02 and the handle 03 may also be integrally designed.

Referring to fig. 6, schematic diagrams of different states of the handle of the minimally invasive surgery assisting device of the invention are shown, wherein the handle 03 is used as a handheld portion of the whole magnetic anchoring clamp and connected with the control rod 0205 for an operator to hold and operate the clamp, the handle 03 has three gears corresponding to initial, open and release states, fig. 6 a shows that the handle 03 is in an initial gear position, the schematic diagrams of the initial states of the grasper portion 01 and the control portion 02 of the magnetic anchoring clamp are shown in fig. 7, the grasper portion 01 and the control portion 02 are attracted into a whole through the magnetic force between the inner anchoring magnet 0107 and the attraction magnet 0201, and the forceps arm 0101 is in a closed state.

It should be noted that the control portion 02 and the grasping portion 01 of the present invention can also adopt an integrated design scheme, or the control portion 02 and the handle 03 can be integrated design scheme, so as to reduce the design complexity, and accordingly, the integral components of the present invention can be simplified into the grasping portion and the grasping portion.

Further refer to fig. 6b, which is a schematic diagram of the handle 03 in an open position, at this time, the open states of the control part 02 and the grasper part 01 are schematically illustrated in fig. 8, when the handle 03 is open, the control core rod 0202 is operated to translate forward until the trigger rod 0104 is pushed, the forceps arm 0101 is further opened through the link 0103, the thrust required for pushing the trigger rod 0104 is smaller than the attraction force between the inner anchoring magnet 0107 and the attraction magnet 0201, so as to prevent the grasper part 01 and the control part 02 from being accidentally separated, and when the grasper part 01 grasps or pulls a diseased tissue, the grasp states of the control part 02 and the grasper part 01 are illustrated in fig. 9.

Further referring to fig. 6 c, which is a schematic view of the release state of the handle 03, when the grasper portion 01 needs to be released, the handle 03 pulls back to control the core rod 0202 to retract, and further pulls the attraction magnet 0201 to retract, so as to increase the distance between the attraction magnet 0201 and the inner anchoring magnet 0107 until the magnetic force between the attraction magnet 0201 and the inner anchoring magnet 0107 is significantly weakened, thereby disengaging the grasper portion 01 from the control portion 02.

The working process of the minimally invasive surgery auxiliary device of the invention is exemplified as follows:

taking cholecystectomy as an example, after a hole is opened at the navel of a patient, a doctor extends the magnetic anchoring clamp head in an initial state into the body of the patient through a poking card, finds the position of a gall bladder through a shot image, and operates a handle 03 to an opening gear position, so that a forceps part 01 is opened; after the grasping forceps part 01 is further moved to a proper position for grasping a gallbladder, the operating handle 03 returns to an initial gear position, the grasping spring 0108 pushes the trigger rod 0104 to reset, the elastic force of the grasping spring 0108 is converted into the grasping force, the forceps arms 0101 are closed and clamped on the gallbladder, a doctor continues operating the operating handle 03 to a release gear position, and the control part 02 is taken out of the body of the patient after the control part 02 is separated from the grasping forceps part 01.

Referring to fig. 11, referring to the schematic drawing of the external traction of the minimally invasive surgery auxiliary device of the present invention, the doctor further moves the external large magnet 05 to different positions to control the traction direction of the forceps part 01, and controls the distance between the external large magnet 05 and the abdominal wall 04 to control the strength of the traction force, so that the assistant can cooperate with the main surgeon at any time during the surgery, and flexibly adjust the direction and strength of the traction force along with the progress of the surgery by controlling the external large magnet 05, so as to keep the gallbladder or other organs blocking the field of vision in a pulling state, avoid the surgical field from being blocked, keep the surgical field clear, reduce the risk of the surgery, and improve the surgery efficiency.

After the operation is finished, the doctor can stretch the control part 02 into the patient body again, the automatic attraction butt joint of the control part 02 and the grasping part 01 is realized by the magnetic force after the control part is close to the grasping part 01, the doctor continuously operates the grasping part 01 to open the clamping jaw, and the grasping part 01 can be recovered from the original opening after the clamping part is released.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The auxiliary device for minimally invasive surgery comprises a handle and is characterized by further comprising a control part and a releasable forceps part, wherein an inner anchoring magnet is arranged in the forceps part and used for being matched with an external magnetic control device and the control part to clamp tissues, and an attraction magnet is arranged in the control part and used for interacting with the inner anchoring magnet to control the opening and the clamping of the forceps part and realize the magnetic attraction and the separation with the forceps part.

2. The auxiliary device as claimed in claim 1, wherein the grasping jaw further comprises a forceps arm, a fixed rotation pin, a trigger lever, a link transmission mechanism, a connecting seat and a grasping spring, wherein,

3. The accessory of claim 2, wherein said clamp spring is further adapted to be a resilient member.

4. The assist device as claimed in claim 2, wherein the link transmission mechanism is comprised of a link and a movable rotation pin, the link connecting the trigger lever and the jawarms through the movable rotation pin.

5. The auxiliary device as claimed in claim 1, wherein said control portion further comprises a control core rod, a return spring, a guide member and a control rod,

and the control rod is used for connecting the control part and the handle.

6. Auxiliary device as claimed in claim 5, characterized in that the return spring can also be provided with resilient means.

7. An accessory device as claimed in claim 1, wherein the inner anchoring magnet may be either of a permanent magnet material or a magnetically permeable material.

8. The assist device of claim 1, wherein the number of jawarms is at least two and at least one jawarms is rotatably movable.

9. An accessory device as claimed in claim 1, wherein the control portion and the grasper portion are of a unitary design.

10. An accessory as claimed in claim 1, wherein the control portion is integrally formed with the handle.