CN213190037U - Multifunctional needle type minimally invasive laparoscopic surgery instrument - Google Patents
Multifunctional needle type minimally invasive laparoscopic surgery instrument Download PDFInfo
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- CN213190037U CN213190037U CN202020611066.5U CN202020611066U CN213190037U CN 213190037 U CN213190037 U CN 213190037U CN 202020611066 U CN202020611066 U CN 202020611066U CN 213190037 U CN213190037 U CN 213190037U
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Abstract
The utility model relates to a multifunctional needle type minimally invasive laparoscopic surgery instrument, which mainly comprises an electric coagulation generator, an instrument handle, an instrument rod, a conduction rod, a stretching component and a surgical instrument head. The instrument handle is in a scissors handle shape, a hollow instrument rod is fixedly connected to the fixed end of the instrument handle, the front end of the instrument rod is an openable surgical instrument head, and the top end of the instrument rod is an instrument needle head. A movable end of the instrument handle is fixedly connected with a conduction rod, the conduction rod is introduced into the instrument rod, and the conduction rod is connected to the surgical instrument head through a stretching assembly arranged at the front end of the instrument rod. The electrocoagulation generator is electrically connected with the surgical instrument head. The surgical instrument has multiple functions, such as tissue separation, tissue clamping, electric coagulation hemostasis, electric excision, stone breaking, stone removal and the like. The instrument does not need to be frequently replaced in the operation, and the operation speed is improved. The operation is widely used: minimally invasive traceless laparoscopic surgery, single port laparoscopic surgery, gallbladder-protecting and stone-removing surgery, gynecological surgery, pediatric surgery and the like.
Description
Technical Field
The utility model relates to a multifunctional needle type minimally invasive laparoscopic surgery instrument, belonging to the technical field of medical surgery instruments. Is particularly suitable for patients with more minimally invasive operations such as traceless laparoscopy and the like.
Background
In the existing laparoscopic minimally invasive surgical instrument, an insulating layer with the thickness of 1mm is sleeved outside a surgical instrument rod, a sleeve with the diameter increased by more than 2mm needs to be placed before the laparoscopic instrument enters an abdominal cavity, and an abdominal operation incision is about 12 mm. Each surgical instrument that enters the abdominal cavity through the cannula has only one function, such as separation, clamping, irrigation, suction, electrocoagulation. The operation of a site requires frequent instrument changes. If bleeding occurs in the operation, the electrocoagulation hemostatic instrument is not replaced timely, the operation time of the operation is increased, bleeding is difficult to stop bleeding, and the incision is required to be enlarged and changed into an open surgery when the minimally invasive surgery cannot be continued. The other type is the traditional apparatus of the common operation, the apparatus is about 20mm, the incision is large, the direct-vision operation is still that each surgical apparatus has one function, the operation needs to be frequently changed, the operation time is increased, and the use is very inconvenient. The existing minimally invasive surgical instruments are smaller than the traditional incision in the open abdomen, but the incision at each position is still larger than 12mm, the incision after operation needs to be sutured, the instrument has single function, and the problem that more minimally invasive surgery is hoped to be paid attention to by experts at home and abroad.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the multifunctional needle type minimally invasive laparoscopic surgical instrument which has the advantages that the needle head for the instrument with the diameter of 2mm directly penetrates through the abdominal wall, the instrument does not need to be frequently replaced in the operation, and the functions of tissue penetration, separation, clamping, electric coagulation hemostasis, electrotomy, lithotripsy, stone extraction and the like can be realized at the same time.
The utility model aims at realizing through the following technical scheme:
a multifunctional needle type minimally invasive laparoscopic surgical instrument mainly comprises an electric coagulation generator, an instrument handle, an instrument rod, a conduction rod, a stretching assembly and a surgical instrument head; the handle of the instrument is in a scissors handle shape, and the top end of the handle is provided with a fixed end and a movable end; the fixed end of the instrument handle is fixedly connected with a hollow instrument rod, the front end of the instrument rod is provided with an openable surgical instrument head, the surgical instrument head is a scissors-bit-shaped conical needle head clamp, and the top end of the surgical instrument head is provided with a sharp instrument needle head; the movable end head of the instrument handle is fixedly connected with a conduction rod, the conduction rod penetrates into the instrument rod, is connected to a stretching assembly arranged at the front end of the instrument rod, and is connected to the surgical instrument head through the stretching assembly; the electrocoagulation generator is a high-frequency generator, and the electrocoagulation generator is electrically connected with the surgical instrument head through a conducting rod and a stretching component, and then forms a high-frequency current circuit through a human body and an electrode plate applied on the human body.
The diameter of the instrument rod and the maximum diameter of the surgical instrument head are both 2 mm.
The outer layer of the instrument rod is provided with a nano insulating coating with the thickness of 0.1 mm.
An electric connector is arranged on the instrument handle and is electrically connected with the instrument rod; the electrocoagulation generator is connected to the electrical connector by an electrical connection; the electrocoagulation generator is connected to a foot switch by another electrical connection.
The stretching assembly consists of a connecting rod movable shaft, a stretching arm and an instrument head rotating shaft which are connected in sequence; the conduction rod is rotatably connected with the stretching arm through a connecting rod movable shaft, and the stretching arm is rotatably connected with the surgical instrument head through an instrument head rotating shaft; the conduction rod pushes the movable shaft of the connecting rod forwards or resets backwards through the opening and closing actions of the handle of the surgical instrument, and the head of the surgical instrument is opened and closed through the expansion and contraction actions of the stretching arm and the rotating shaft of the head of the surgical instrument.
The back end of the surgical instrument head is provided with a root tooth which is meshed up and down.
The foot switch is provided with a left pedal and a right pedal.
The instrument rod and the surgical instrument head are made of high-strength stainless steel materials.
Compared with the prior art, the utility model have following advantage:
(1) a surgical instrument has multiple functions, and can penetrate tissue, separate tissue, clamp tissue, electrically coagulate hemostasis, electrically cut, break stone, and remove stone.
(2) The instrument technology is improved, so that the current laparoscopic surgery cuts a hole with 6-12mm to be reduced to 2mm, the surgical instrument head with the diameter of 2mm can directly penetrate through the abdominal wall and enter the abdominal cavity without placing a sleeve, and the suture is not needed after the surgery, thereby solving the problem that the minimally invasive surgery can not be solved all the time. Through clinical trial, the effect is good.
(3) The instrument does not need to be frequently replaced in the operation, and the operation speed is improved.
(4) The operation safety is improved.
(5) The outer layers of the surgical instrument rod and the instrument handle are provided with high-strength high-temperature-resistant nano insulating layers with the thickness of less than 0.1mm, and the surgical instrument head is not provided with an insulating layer, so that the micro-fine instrument has the functions of electrocoagulation and electrosection.
(6) Compared with the same kind, the structure is simple and reasonable, the functions are multiple, and the cost is greatly reduced.
(7) The operation is widely used: minimally invasive traceless laparoscopic surgery, single port laparoscopic surgery, gallbladder-protecting and stone-removing surgery, gynecological surgery, pediatric surgery and the like.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged schematic view of the structure of the end of the shaft of the instrument.
In the figure: 1. the device comprises a device needle head, 2 a device rod, 3 a conduction rod, 4 a device head rotating shaft, 5 a device handle, 6 a surgical device head, 7 a root tooth, 8 an electric connector, 9 a foot switch, 10 an electric coagulation generator, 11 a connecting rod movable shaft, 12 a stretching arm, 13 and an electrode plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the multifunctional needle-type minimally invasive laparoscopic surgical instrument of the present invention is mainly composed of an electrocoagulation generator 10, an instrument handle 5, an instrument rod 2, a conduction rod 3, a stretching assembly, and a surgical instrument head 6. The handle 5 of the instrument is in the shape of a scissors handle, and the top end of the handle is provided with a fixed end head and a movable end head. A hollow instrument rod 2 is fixedly connected to the fixed end of an instrument handle 5, an openable surgical instrument head 6 is arranged at the front end of the instrument rod 2, the surgical instrument head 6 is a scissors-blade-shaped conical needle head clamp, and the top end of the surgical instrument head is a sharp instrument needle head 1. The movable end of the instrument handle 5 is fixedly connected with a conduction rod 3, the conduction rod 3 penetrates into the instrument rod 2, is connected to a stretching assembly arranged at the front end of the instrument rod 2, and is connected to a surgical instrument head 6 through the stretching assembly. The stretching assembly consists of a connecting rod movable shaft 11, a stretching arm 12 and an instrument head rotating shaft 4 which are connected in sequence. The conduction rod 3 is rotatably connected with the stretching arm 12 through a connecting rod movable shaft 11, and the stretching arm 12 is rotatably connected with the surgical instrument head 6 through an instrument head rotating shaft 4. The transmission rod 3 pushes the connecting rod movable shaft 11 forwards or resets backwards through the opening and closing actions of the instrument handle 5, and the surgical instrument head 6 is opened and closed through the expansion and contraction actions of the stretching arm 12 and the instrument head rotating shaft 4. The principle of the device is equivalent to that of a cigarette end picking device used by sanitation workers. Thus, the opening and closing of the surgical instrument head 6 are finally controlled by the action of the instrument handle 5.
In the rear end of the surgical instrument head 6, there are vertically engaging teeth 7.
The diameter of the instrument rod 2 is 2mm, and the maximum diameter of the surgical instrument head 6 is 2 mm. The instrument shaft 2 and the surgical instrument head 6 are made of high-strength stainless steel (such as type 440 imported razor blade steel) by finish machining, and the strength of the stainless steel is enough to meet the hardness requirement of a surgical instrument with the diameter of 2mm during surgery.
The outer layer of the instrument rod 2 is provided with a high-strength high-temperature-resistant nano insulating coating with the thickness of 0.1mm, the coating is a GN-203 coating or a alumina nano cellular material coating, the insulating voltage is more than 1000V, the insulating resistance is more than 2000 MOmega, and the insulating property is far higher than that of common insulating paint.
The electrocoagulation generator 10 is a high-frequency generator, the electrocoagulation generator 10 is electrically connected with the surgical instrument head 6 through the conducting rod 3 and the stretching component, and then forms a high-frequency current circuit through the human body and the electrode plate 13 applied on the human body. The connection mode of the circuit is as follows: an electrical connector 8 is provided at the movable end of the instrument handle 5, and an electrocoagulation generator 10 is connected at one end to the electrical connector 8 via an electrical connection and at the other end to an electrode plate 13. Electrical connections 8 are made between the instrument shaft 2, the stretching assembly and the surgical instrument head 6. The electrocoagulation generator 10 is connected to the foot switch 9 by another electrical connection. The pedal switch 9 is provided with a left pedal and a right pedal which can respectively control the work of the electrocoagulation generator 10, and an electric control signal of the electrocoagulation generator 10 can be directly transmitted to the instrument needle 1 and the surgical instrument head 6 to start electrocoagulation hemostasis or electrosection. It should be noted that the circuit system of the laparoscopic minimally invasive surgical instrument adopts the same circuit system as the existing minimally invasive surgical instrument: the high-frequency current generated by the high-frequency oscillation circuit in the electrocoagulation generator is applied to the affected part through the head of the surgical instrument, and the instant cauterization phenomenon is generated on the contacted tissue, so as to achieve the effect of electrotomy or electrocoagulation. The embodiment of the utility model provides an in use be monopole electrotome, make the electric current flow back electrotome form the return circuit through pasting in human electrode board 13. Because the utility model uses the existing electrocoagulation generator and the circuit system of the minimally invasive surgery, the structure and the circuit principle are not detailed here.
During operation, the instrument needle 1 is pressurized and rotates left and right to have penetrating power after being closed, the instrument needle 1 penetrates into an abdominal cavity through abdominal skin, the instrument needle 1 with the diameter of 2mm rotates left and right to directly penetrate through the abdominal wall to enter the abdominal cavity operation, and the instrument enters the abdominal cavity without a sleeve. Since the diameter of the instrument rod 2 is only 2mm, no suturing is needed after micropore operation. The high-strength high-temperature-resistant nano insulating layer outside the instrument rod 2 isolates the electricity of the conduction rod 3 from the human body.
Now introduce several surgical functions of the present invention:
(1) and the electric coagulation hemostasis function: when bleeding occurs in the operation, the pedal switch 9 steps on the left side electrocoagulation switch, the high-frequency current fluctuation electricity sent by the electrocoagulation generator 10 is sent to the electric connector 8 through the electric connection wire and then is transmitted to the surgical instrument head 6 through the conducting rod 3, and the high-frequency current fluctuation electricity of the surgical instrument head 6 is electrically contacted with bleeding tissues to start electrocoagulation hemostasis.
(2) And tissue electrotomy function: when human tissue needs to be electrically cut, the foot switch 9 treads down the right side electric cutting switch, the electric cutting generator 10 sends out high-frequency non-fluctuation continuous current for electric cutting, the high-frequency non-fluctuation continuous current is transmitted to the electric connector 8 through the electric connection wire and then transmitted to the tissue contacted with the surgical instrument head 6 through the conducting rod 3, the high-frequency non-fluctuation continuous current electrically cuts the tissue, and the lesion tissue is cut.
The electrocoagulation and the electrosection are implemented because the outer layer of the instrument rod 2 is provided with the nano ceramic insulating layer, the instrument rod 2 is contacted with abdominal wall tissues to be non-conductive, and high-frequency current directly reaches the surgical instrument head 6 without the insulating layer to generate the electrocoagulation or the electrosection tissue effect on the contacted tissue parts.
(3) And the tissue separating function: the instrument handle 5 is opened and closed, the connecting rod movable shaft 11 is pulled to move forwards and backwards through the instrument rod 2 and the conduction rod 3, and the front part of the surgical instrument head 6 connected with the instrument head rotating shaft 4 is opened and closed through the pulling and stretching action of the stretching arm 12. When the tissue needs to be separated, the instrument handle 5 is closed to close the surgical instrument head 6, and after the instrument needle 1 is pricked into the tissue, the instrument handle 5 is opened again to drive the surgical instrument head 6 to be opened so as to separate the pricked tissue.
(4) And the non-injury tissue traction function: the front half part of the surgical instrument head 6 has no teeth, and the pulled tissue is clamped and pulled by the toothless part of the surgical instrument head 6, so that the traction is not damaged.
(5) And the stone breaking function: after the instrument handle 5 is opened, the instrument handle 5 is closed after the back half part of the root teeth 7 of the surgical instrument head 6 clamps the gallstone, so that the root teeth 7 clamp the gallstone forcibly, and the gallstone can be crushed.
(6) The abdominal wall penetrating function of the instrument: the instrument needle 1 has penetrating power after being closed, and the instrument needle 1 rotates and pressurizes through 1mm skin incision on the abdomen, penetrates through the abdominal wall and enters the abdominal cavity for operation. The skin micropores created by a device diameter of 2mm do not require suturing.
The instrument solves the problems that the abdominal wall micropores are not sutured, the instrument penetrates into the abdominal cavity without a sleeve, one instrument is multifunctional, the instrument is not frequently replaced in the operation, and the electric coagulation hemostasis is required immediately for accidental bleeding, which cannot be solved by the existing laparoscopic surgical instrument, so that the operation speed is high and the operation is safer. The utility model discloses there is the abdominal wall that pierces through to get into the abdominal cavity, and separation, forceps holder, electricity congeal, electrocision, rubble, get the stone multi-functional to can extensively be applicable to more minimally invasive no trace laparoscopic surgery, haplopore laparoscopic surgery, protect courage and get stone operation etc. have solved the problem that present laparoscopic surgery apparatus can not solve.
Claims (8)
1. The multifunctional needle type minimally invasive laparoscopic surgery instrument is characterized in that: mainly comprises an electrocoagulation generator (10), an instrument handle (5), an instrument rod (2), a conduction rod (3), a stretching component and a surgical instrument head (6); the instrument handle (5) is in a scissor handle shape, and the top end of the instrument handle is provided with a fixed end head and a movable end head; a hollow instrument rod (2) is fixedly connected to the fixed end of the instrument handle (5), an openable surgical instrument head (6) is arranged at the front end of the instrument rod (2), the surgical instrument head (6) is a scissors-bit-shaped conical needle head clamp, and the top end of the surgical instrument head is a sharp instrument needle head (1); the movable end head of the instrument handle (5) is fixedly connected with a conduction rod (3), the conduction rod (3) penetrates into the instrument rod (2), is connected to a stretching assembly arranged at the front end of the instrument rod (2), and is connected to a surgical instrument head (6) through the stretching assembly; the electrocoagulation generator (10) is a high-frequency generator, the electrocoagulation generator (10) is electrically connected with the surgical instrument head (6) through the conducting rod (3) and the stretching component, and then an electric loop of high-frequency current is formed by the human body and the electrode plate (13) applied on the human body.
2. The needle-type minimally invasive laparoscopic surgical instrument according to claim 1, wherein: the diameter of the instrument rod (2) and the maximum diameter of the surgical instrument head (6) are both 2 mm.
3. The needle-type minimally invasive laparoscopic surgical instrument according to claim 1 or 2, wherein: the outer layer of the instrument rod (2) is provided with a nano insulating coating with the thickness of 0.1 mm.
4. The needle-type minimally invasive laparoscopic surgical instrument according to claim 1, wherein: an electric connector (8) is arranged on the instrument handle (5), and the electric connector (8) is electrically connected with the instrument rod (2); the electrocoagulation generator (10) is connected to the electrical connector (8) by an electrical connection; the electrocoagulation generator (10) is connected with a foot switch (9) through another electric connection wire.
5. The needle-type minimally invasive laparoscopic surgical instrument according to claim 1, wherein: the stretching assembly consists of a connecting rod movable shaft (11), a stretching arm (12) and an instrument head rotating shaft (4) which are connected in sequence; the conduction rod (3) is rotatably connected with the stretching arm (12) through a connecting rod movable shaft (11), and the stretching arm (12) is rotatably connected with the surgical instrument head (6) through an instrument head rotating shaft (4); the transmission rod (3) pushes the connecting rod movable shaft (11) forwards or resets backwards through the opening and closing actions of the instrument handle (5), and the surgical instrument head (6) is opened and closed through the expansion and contraction actions of the stretching arm (12) and the instrument head rotating shaft (4).
6. The needle-type minimally invasive laparoscopic surgical instrument according to claim 1 or 5, wherein: the back end part of the surgical instrument head (6) is provided with a root tooth (7) which is engaged up and down.
7. The needle-type minimally invasive laparoscopic surgical instrument according to claim 4, wherein: the foot switch (9) is provided with a left pedal and a right pedal.
8. The needle-type minimally invasive laparoscopic surgical instrument according to claim 1 or 2, wherein: the instrument rod (2) and the surgical instrument head (6) are made of high-strength stainless steel materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020611066.5U CN213190037U (en) | 2020-04-20 | 2020-04-20 | Multifunctional needle type minimally invasive laparoscopic surgery instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020611066.5U CN213190037U (en) | 2020-04-20 | 2020-04-20 | Multifunctional needle type minimally invasive laparoscopic surgery instrument |
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| CN213190037U true CN213190037U (en) | 2021-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115590598A (en) * | 2022-09-27 | 2023-01-13 | 吉林大学（Cn） | Minimally invasive surgery instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115590598A (en) * | 2022-09-27 | 2023-01-13 | 吉林大学（Cn） | Minimally invasive surgery instrument |
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