CN215960238U

CN215960238U - Scissors head structure of bipolar electrocoagulation scissors

Info

Publication number: CN215960238U
Application number: CN202122168979.1U
Authority: CN
Inventors: 韩国勇; 朱国锋; 朱国华; 张文幸; 张永金
Original assignee: HANGZHOU TONGLU YIDA MEDICAL APPARATUS CO Ltd
Current assignee: HANGZHOU TONGLU YIDA MEDICAL APPARATUS CO Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-08
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a scissor head structure of bipolar electrocoagulation scissors, which comprises a scissor head and a scissor head seat, wherein the scissor head is hinged with the scissor head seat, an active scissor blade for shearing and a passive scissor blade for electrocoagulation hemostasis are arranged on the scissor head, and the active scissor blade is hinged with the passive scissor blade. The utility model provides a scissors head structure of a bipolar electrocoagulation scissors, which realizes that the scissors head of the bipolar electrocoagulation scissors for surgical resection has the functions of simultaneous shearing and electrocoagulation hemostasis.

Description

Scissors head structure of bipolar electrocoagulation scissors

Technical Field

The utility model relates to a medical instrument assembly, in particular to a scissor head structure of a bipolar electrocoagulation shear.

Background

The application of bipolar coagulation scissors in surgical resection is another new technology after the relay use of monopolar electric knives in common surgical operations in recent years. The surgical scissors are designed by adopting the traditional surgical scissors, are simple to operate, accord with the operation habit of the operation, have brand-new functional design of cutting and coagulating blood simultaneously, can accelerate the operation and shorten the operation time.

At present, in surgical excision, common scissors are used as a cutting and stripping tool and electrodes are used as a hemostatic tool, and with the updating of instruments and equipment in operating rooms of hospitals, a monopolar electric knife is increasingly commonly used in surgical excision, but due to the inherent defect of the design of the monopolar electric knife, when an operator uses the monopolar electric knife to cut tissues or perform electrocoagulation hemostasis, high-frequency current generated by an electric knife generator flows into the tissues, and the current can flow to non-operative parts, so that the body of a patient is thermally damaged by more unnecessary tissues. Secondly, because the electrode electrotome inevitably has problems such as direct coupling, capacitive coupling during the use, so the skin of the negative plate sticking place has potential burning danger to exist. This potential risk, which is also a threat to the operator, is particularly dangerous when the surgeon has poor insulation due to glove breakage.

For example, a "scissors for surgical operation of washing type just" that discloses on chinese patent literature, its publication No. CN204484249U, including scissors body, scissors head, scissors handle and pivot, the scissors body comprises two scissors handles, and the scissors handle passes through the pivot to be connected, and it has the spool to open in the scissors handle, and the spool upper end is connected and is equipped with the bulb, and the spool lower extreme is connected and is equipped with the battery case, is equipped with the switch on the battery case, and the finger stall is equipped with to scissors handle bottom, and scissors body upper end scissors head one side is equipped with the blade mounting groove, is equipped with the blade on the blade mounting groove. Avoids the secondary injury to the patient caused by the sharp scissor head in the operation process, and has the defect that the electric coagulation hemostatic instrument can only be used as a cutting and stripping tool and can not meet the requirement of the surgical excision operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problem that scissors for surgical resection operations in the prior art do not have the functions of simultaneously cutting tissues and performing electrocoagulation hemostasis, and provides a scissors head structure of bipolar electrocoagulation scissors, which realizes the functions of simultaneously cutting and performing electrocoagulation hemostasis on the scissors head of the bipolar electrocoagulation scissors for the surgical resection operations.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a scissors head structure of bipolar coagulation scissors, includes scissors head and scissors headstock, the scissors head is articulated with scissors headstock, the overhead initiative scissors piece that is used for the shearing and the passive scissors piece that is used for the hemostasis of electricity congealing that is equipped with of scissors, initiative scissors piece is articulated with passive scissors piece. The scissor head seat is hinged with a pair of scissor heads which are symmetrically arranged, the driving scissor blade is used for cutting and stripping, the driven scissor blade is used for electrocoagulation hemostasis, so that small blood vessels encountered in the stripping process can be timely solidified, the blood leakage in the operative field is reduced, the existence of thread-knot foreign matters is reduced, the postoperative recovery of a patient is facilitated, when the electric coagulation surgical scissors are used, the non-vessel tissue scissor heads are not electrified and are directly sheared and separated like the surgical scissors, for an operator, the process of re-adapting to the learning does not exist, the operation is simple, the traditional operation habit is met, for an electric coagulation focus, the electrocoagulation scissors are folded, the action of a point brush is adopted to contact a bleeding surface, the starting point-shaped coagulation effect is realized, the generated heat phenomenon is only concentrated at the local tissue position contacted by an electrode, the defect of overlarge soft tissue damage range is avoided, the heat injury of the tissue is reduced, and the tissue scab caused by electrocoagulation is less, therefore, the surgical instruments do not need to be frequently replaced in the surgical process, the continuity of the surgical operation is ensured, the interference to a surgeon is reduced, the surgical operation is simplified, and the surgical time is shortened.

Preferably, the passive shear blade comprises an electrode plate and an insulating sheet arranged on the inner side of the electrode plate, a plurality of convex blocks are arranged on the insulating sheet, a plurality of grooves matched with the convex blocks are formed in the electrode plate, and the electrode plate is connected with the insulating sheet in a clamping mode through the convex blocks and the grooves. Electrode slice and insulating piece pass through lug and recess joint, and the insulating piece is located the electrode slice inboard for even contact also can not the short circuit when two scissors heads are cuted.

Preferably, the electrode plates comprise a first electrode plate for active discharge and a second electrode plate for backflow, and the first electrode plate and the second electrode plate are respectively arranged on the pair of scissor heads. The electrode plates are paired, the first electrode plate is an active electrode, the second electrode plate is a return electrode, so that current only passes through tissues clamped between the two jaws of the scissors and does not flow through the body of a patient indiscriminately, high-frequency current leakage and current shunt phenomena are avoided, energy distribution of electric energy transmission is more concentrated, and the operation safety of the scissors is improved for a patient or an operator.

Preferably, the rear end of the scissor head seat is provided with a chute which is connected with the scissor handle seat in a sliding manner, and the chute is connected with the scissor head seat through a link mechanism. The scissor head seat is connected with the scissor handle seat in a sliding mode through the sliding groove, and the distance between the two active scissor blades of the scissor head can be adjusted conveniently.

Preferably, the link mechanism comprises a driving pin rod and two connecting rods, the connecting rods are arranged on the lateral sides of the scissor head bases, and the connecting rods are hinged with the rear ends of the driving scissor blades. When the driving pin rod is pulled, the connecting rod mechanism is deformed, and then the two driving shear blades are pulled to open and close for shearing.

Preferably, the driving pin rod penetrates through the sliding groove, and the two connecting rods are respectively hinged with two ends of the driving pin rod. The driving pin rod penetrates through the sliding groove, so that the driving pin rod is respectively connected with the two driving shear blades through the two connecting rods, and shearing is facilitated.

Preferably, the maximum distance between the tips of the scissor heads is 4cm to 5 cm. The maximum distance between the tips of the scissor heads cannot be too large, so that the scissor head is inconvenient to operate and cannot be too small, and the scissor head cannot be used for cutting when thick objects need to be cut.

Preferably, the length of the electrode sheet is greater than the length of the insulating sheet. Therefore, when in electrocoagulation hemostasis, the discharge of the first electrode plate and the backflow of the second electrode plate are not interfered by the insulating sheet.

Preferably, the scissor head seat is provided with a switch for controlling the on-off of the electrode slice and a bulb for lighting. The switch on the scissor head seat controls the discharge of the electrode slice, and the bulb is convenient for lighting.

Preferably, the insulating sheet is made of zirconia, and the electrode sheet is made of stainless steel. Zirconia is insulating material, avoids directly conducting between two initiative scissors piece and takes place the short circuit, and the stainless steel is conducting material, and the electric current of being convenient for passes through human tissue through the electrode.

The utility model has the following beneficial effects: (1) has the functions of shearing and electric coagulation hemostasis at the same time; (2) the current only passes through the tissues clamped between the two jaws of the scissors, so that the operation safety is high; (3) surgical instruments do not need to be replaced, the continuity of surgical operation is ensured, and the surgical time is shortened.

Drawings

The utility model is further illustrated with reference to the figures and examples.

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

FIG. 2 is a schematic view of the structure of the electrode plate and the insulating sheet according to the present invention;

fig. 3 is a schematic structural view of the connection between the scissor head and the scissor base.

In the figure: scissors head 1, scissors headstock 2, initiative scissors piece 3, passive scissors piece 4, electrode slice 4.1, insulating piece 4.2, lug 5, recess 6, spout 7, link mechanism 8, drive pin 8.1, connecting rod 8.2.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1 or fig. 2, a scissors head structure of a bipolar electrocoagulation scissors comprises a scissors head 1 and a scissors head seat 2, wherein the scissors head 1 is hinged to the scissors head seat 2, an active scissors blade 3 for shearing and a passive scissors blade 4 for electrocoagulation hemostasis are arranged on the scissors head 1, and the active scissors blade 3 is hinged to the passive scissors blade 4; the passive shear blade 4 comprises an electrode plate 4.1 and an insulating sheet 4.2 arranged on the inner side of the electrode plate 4.1, a plurality of lugs 5 are arranged on the insulating sheet 4.2, a plurality of grooves 6 matched with the lugs 5 are arranged on the electrode plate 4.1, and the electrode plate 4.1 is clamped with the insulating sheet 4.2 through the lugs 5 and the grooves 6; the electrode plates 4.1 comprise a first electrode plate for active discharge and a second electrode plate for backflow, and the first electrode plate and the second electrode plate are respectively arranged on the pair of scissor heads 1; the maximum distance between the tips of the scissor heads 1 is 4cm-5 cm; the length of the electrode plate 4.1 is greater than the length of the insulating plate 4.2.

In the technical scheme, a pair of symmetrically arranged scissor heads 1 is hinged on a scissor head seat 2, an active scissor blade 3 is used for cutting and stripping, a passive scissor blade 4 is used for electrocoagulation hemostasis, so that small blood vessels encountered in the stripping process can be timely solidified, the blood leakage in operative field is reduced, the existence of thread-knot foreign matters is reduced, the postoperative recovery of a patient is facilitated, when the electric coagulation surgical scissors is used, the electric coagulation-free tissue scissor heads 1 are not electrified and are directly sheared and separated as surgical scissors, the process of re-adapting to learning does not exist for an operator, the operation is simple and accords with the traditional operation habit, for an electric bleeding range, the electrocoagulation folding scissors are adopted, the action of a point brush is adopted to contact a bleeding surface, the starting point-shaped coagulation effect is realized, the generated heat phenomenon is only concentrated at the local tissue position contacted by an electrode, the defect of overlarge soft tissue damage range is avoided, the heat damage of the tissue is reduced, and the tissue scab caused by electrocoagulation is less, therefore, the surgical instruments do not need to be frequently replaced in the surgical process, the continuity of the surgical operation is ensured, the interference to a surgeon is reduced, the surgical operation is simplified, and the surgical time is shortened; the electrode plate 4.1 and the insulating sheet 4.2 are clamped through the convex block 5 and the groove 6, and the insulating sheet 4.2 is positioned on the inner side of the electrode plate 4.1, so that the two scissor heads 1 cannot be short-circuited even if in contact during shearing; the electrode plates 4.1 are paired, the first electrode plate is an active electrode, the second electrode plate is a return electrode, so that the current only passes through the tissue clamped between the two jaws of the scissors and does not flow through the body of a patient indiscriminately, high-frequency current leakage and current shunt phenomena are avoided, the energy distribution of electric energy transmission is more concentrated, and the operation safety of the scissors is improved for a patient or an operator; the maximum distance between the tips of the scissor heads 1 cannot be too large, so that the scissor is inconvenient to operate and cannot be too small, and the scissor cannot cut thick objects; during electrocoagulation hemostasis, the discharge of the first electrode plate and the backflow of the second electrode plate are not interfered by the insulating sheet 4.2.

The second embodiment is as follows:

as shown in fig. 3, on the basis of embodiment 1, a sliding groove 7 for slidably connecting with a scissor handle seat is arranged at the rear end of a scissor head seat 2, and the sliding groove 7 is connected with the scissor head seat 2 through a link mechanism 8; the connecting rod mechanism 8 comprises a driving pin rod 8.1 and two connecting rods 8.2, the connecting rods 8.2 are arranged on the side surfaces of the scissor head seats 2, and the connecting rods 8.2 are hinged with the rear ends of the driving scissor blades 3; the driving pin rod 8.1 penetrates through the sliding chute 7, and the two connecting rods 8.2 are respectively hinged with two ends of the driving pin rod 8.1; a switch for controlling the on-off of the electrode slice 4.1 and a bulb for lighting are arranged on the scissor head seat 2; the insulating sheet 4.2 is made of zirconia, and the electrode sheet 4.1 is made of stainless steel.

In the technical scheme, the scissor head seat 2 is connected with the scissor handle seat in a sliding manner through the sliding chute 7, so that the distance between the two active scissor blades 3 of the scissor head 1 can be conveniently adjusted; when the driving pin rod 8.1 is pulled, the link mechanism 8 is deformed, and then the two driving shear blades 3 are pulled to open and close for shearing; the driving pin rod 8.1 penetrates through the sliding chute 7, so that the driving pin rod 8.1 is respectively connected with the two driving shear blades 3 through the two connecting rods 8.2, and the shearing is facilitated; the switch on the scissor head seat 2 controls the discharge of the electrode slice 4.1, so that the bulb is convenient for lighting; zirconia is insulating material, avoids directly conducting between two initiative scissors piece 3 and takes place the short circuit, and the stainless steel is conducting material, and the current of being convenient for passes through human tissue through the electrode.

Claims

1. The utility model provides a scissors head structure of bipolar coagulation scissors, includes scissors head (1) and scissors headstock (2), its characterized in that: the scissors head (1) is hinged to the scissors head seat (2), an active scissors blade (3) used for shearing and a passive scissors blade (4) used for electrocoagulation hemostasis are arranged on the scissors head (1), and the active scissors blade (3) is hinged to the passive scissors blade (4).

2. The scissors head structure of a bipolar electrocoagulation shear of claim 1, wherein: passive scissors piece (4) include electrode slice (4.1) and set up at electrode slice (4.1) inboard insulating piece (4.2), be equipped with a plurality of lugs (5) on insulating piece (4.2), be equipped with a plurality of recesses (6) that are used for with lug (5) adaptation on electrode slice (4.1), electrode slice (4.1) are through lug (5) and recess (6) and insulating piece (4.2) joint.

3. A scissors head structure of a bipolar electrocoagulation shear as set forth in claim 2, wherein: the electrode plates (4.1) comprise a first electrode plate for active discharge and a second electrode plate for backflow, and the first electrode plate and the second electrode plate are respectively arranged on the pair of scissor heads (1).

4. The scissors head structure of a bipolar electrocoagulation shear of claim 1, wherein: the rear end of the scissor head seat (2) is provided with a sliding chute (7) which is connected with the scissor handle seat in a sliding manner, and the sliding chute (7) is connected with the scissor head seat (2) through a connecting rod mechanism (8).

5. The scissors head structure of a bipolar electrocoagulation shear of claim 4, wherein: the connecting rod mechanism (8) comprises a driving pin rod (8.1) and two connecting rods (8.2), the connecting rods (8.2) are arranged on the side faces of the scissor head bases (2), and the connecting rods (8.2) are hinged with the rear ends of the driving scissor blades (3).

6. A scissors head structure of a bipolar electrocoagulation shear according to claim 5, wherein: the driving pin rod (8.1) penetrates through the sliding groove (7), and the two connecting rods (8.2) are hinged to the two ends of the driving pin rod (8.1) respectively.

7. The scissors head structure of a bipolar electrocoagulation shear of claim 1, wherein: the maximum distance between the tips of the scissor heads (1) is 4cm-5 cm.

8. A scissors head structure of a bipolar electrocoagulation shear according to claim 2 or 3, wherein: the length of the electrode plate (4.1) is greater than that of the insulating plate (4.2).

9. The scissors head structure of a bipolar electrocoagulation shear of claim 1, wherein: the scissors head seat (2) is provided with a switch for controlling the electrode plate (4.1) to be switched on and off and a bulb for lighting.

10. A scissors head structure of a bipolar electrocoagulation shear according to claim 2 or 3, wherein: the insulating sheet (4.2) is made of zirconia, and the electrode sheet (4.1) is made of stainless steel.