CN1275576C - Fast ligaturing and closing electrical medical pliers and the making process - Google Patents

Abstract

The invention discloses a high-frequency capacitance field therapeutic electric forceps structure and jaw processing technology. The metal jaw is an open thin-walled structure formed by stamping and stretching; the metal jaw body processing methods are: sheet material blanking; connecting rod folding; main body stretching; jaw trimming; heat treatment; jaw grinding. The present invention one is to make the tedious processing procedures that need to adopt multiple machine tools in the prior art very simple; the other is to improve labor productivity, and its production efficiency is increased by more than 30 times; the third is to maximize the utilization rate of materials, Energy is saved, materials can be saved more than 2/3, and cross-infection is prevented.

Description

Medical ligation quick-closing therapeutic electric forceps and its processing technology

technical field

The invention relates to an auxiliary tool for a medical device, in particular to an improvement in the structure of a medical therapeutic electric forceps.

Background technique

High-frequency capacitive field therapy electric forceps is a new technology developed in recent years. It is mainly used for the treatment of anorectal diseases. A pair of insulating plates with electrodes are respectively arranged on a pair of jaws. When in use, the handles of the forceps are folded, and the electrodes on the jaws clamp the lesion. After the power is turned on, the lesion becomes dry and falls off, and the treatment is completed. Most of the therapeutic electric forceps in the prior art are used repeatedly. In order to overcome the problem of cross-infection in patients due to repeated use, the applicant has proposed the 'disposable high-frequency capacitance field hemorrhoid treatment forceps' However, the processing of the jaws of the therapeutic electric pliers of the prior art is basically completed by traditional machining processes, namely: material extraction, die forging, welding, mechanical cutting, and grinding and polishing. It uses a variety of machine tools for processing, and the process is complicated, the production efficiency is low, the material utilization rate is low, the energy consumption is high, and the production cost is high.

Contents of the invention

The purpose of the present invention is to research and develop a medical ligation quick-closing therapeutic electric forceps which is suitable for one-time use and is produced by a stretching forming process.

Another object of the present invention is to research and develop a processing technology for processing the metal clamp body of the medical ligation quick-closing therapeutic electric forceps by adopting stretch forming technology.

Above-mentioned technical problem of the present invention is mainly solved by following technical scheme:

A medical ligation quick-closing therapeutic electric forceps,

Medical ligation quick-closing therapeutic electric forceps (hereinafter referred to as electric forceps) consist of a pair of metal forceps hinged by a rotating shaft. There are jaws on the upper part of the forceps, electrode plates on the inside of the jaws, and a connecting rod connected to the handle of the forceps on the lower part of the jaws. , it is characterized in that: the metal jaw is an open thin-walled structure formed by stamping and stretching, and the openings of the jaws of the pair of metal jaws are oppositely arranged.

The above-mentioned technical solution of the present invention can be further improved. As a preference, the cross-section of the open thin-walled structure is groove-shaped or U-shaped.

Preferably, the cross-section of the open thin-walled structure is in the shape of a groove or a U shape with a bottom protruding. It can also be groove-shaped or U-shaped with steps on both sides.

Preferably, the connecting rod is an empty mouth-shaped closed structure. This is conducive to improving the strength of the entire pliers body.

In order to improve the strength and rigidity of the jaws, preferably, the contact part of the electrode plate and the inner wall of the jaws is fitted in a groove shape or a U shape. That is to say, the inner wall of the jaw is matched with the outer side of the electrode plate, and bonded with an adhesive to form a whole.

A processing technology of electric forceps for medical ligation fast closure therapy,

It is characterized in that: the processing method of the metal pliers is:

a. Sheet metal blanking;

b. Hemming of connecting rod;

c. Main body stretching;

d. Jaw trimming;

e. heat treatment;

f. Jaw grinding.

The above-mentioned technical solution of the present invention can be further improved. As a preference, after the heat treatment, the shaping treatment is performed on the punching machine; after the jaws are ground, the surface decoration treatment and the surface anti-shock insulation layer treatment are performed. After heat treatment, there may be slight deformation of the jaws, which can be corrected on the punching machine. The surface decoration is to consider the beauty, and the second is to protect the surface. The anti-shock insulating layer treatment can form an insulating layer on the surface of the jaws, so that it has a certain ability to prevent electric shock.

Preferably, the heat treatment adopts vacuum quenching, and the hardness is HRC40-HRC50. The more optimal hardness is HRC 45-HRC48.

Preferably, the surface decoration treatment adopts matt chrome plating.

Therefore, the beneficial effects of the present invention are: the processing of the metal pliers body abandons the traditional gold processing process adopted in the prior art, but adopts metal plate stamping and stretching forming, thereby forming hollow jaws and fasting closed connecting rod technology, one It makes the cumbersome processing procedures that require the use of multiple machine tools in the existing technology very simple; second, it improves labor productivity, and its production efficiency is increased by more than 30 times; third, it maximizes the utilization rate of materials and saves energy. , The material can save more than 2/3, and the processing accuracy is easy to guarantee, the quality is stable, the production cost is greatly reduced, and cross-infection is eliminated, which is welcomed by major hospitals and patients.

Description of drawings

Accompanying drawing 1 is a kind of structure front view of the present invention;

The side view of accompanying drawing 2 Fig. 1;

Accompanying drawing 3 Fig. 1 A-A sectional enlarged view;

Accompanying drawing 4 is another kind of structure front view of the present invention;

The side view of accompanying drawing 5 Fig. 4;

Accompanying drawing 6 Fig. 4 A-A sectional enlarged view;

Accompanying drawing 7 is another kind of structural front view of the present invention;

The side view of accompanying drawing 8 Fig. 7;

Accompanying drawing 9 Fig. 7 A-A sectional enlarged view.

Detailed ways

The technical solution of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment: The metal pliers body of the electric pliers shown in Fig. 1, Fig. 2 and Fig. 3 is processed by stamping and stretching a metal plate, and the metal pliers body includes a jaw 1 and a connecting rod 7 connected to the jaw , the jaw 1 is an open thin-walled U-shaped 11 structure, the head is arc-shaped, and the connecting rod 7 is an empty mouth-shaped closed structure. A pair of pliers are hinged to each other in the form of a rotating shaft through the bolt 2 and the guide wheel 3. The connecting rod 7. The handle 6 made of plastic is covered on the outside. The electrode plate 4 matched with it is arranged on the inner side of the jaw 1. The electrode 5 is installed on the electrode plate 4. The jaw 1 and the electrode plate 4 are bonded together by an adhesive. Together, it is integrated to improve the strength and rigidity of the jaw 1, and the power cord 8 at the lower end of the electrode plate is derived through the through hole on the connecting rod 7 and the handle 6. Shown in Fig. 4, Fig. 5, Fig. 6 is the electric pliers of another structure, and the jaw 1 is a straight mouth. As shown in Fig. 7, Fig. 8 and Fig. 9, there is another structure of electric pliers. A pair of pliers bodies are arranged asymmetrically. The oral part is provided with a scalpel 9, and the connection line of the scalpel is connected with the broach handle 10 through a channel on one side of the forceps body, and the handle 6 is provided with a return spring 11.

When in use, connect the electric forceps to the output end of the therapeutic instrument, close the handles of the forceps, and clamp the jaws of the electric forceps to the lesion, so that the electrodes form a path, and the instantaneous high temperature generated by the therapeutic instrument will dry the lesion off, or pull it Knife handle, the scalpel cuts off the lesion to complete the treatment.

The processing method of electric pliers:

Sheet material blanking - connecting rod folding - main body stretching - jaw trimming - heat treatment - shaping treatment - jaw grinding - surface decoration treatment - surface anti-shock insulation layer treatment - jaw and electrode plate assembly - electrode and power supply Wire connection-final assembly-packaging disinfection treatment. The metal pliers processing of the present invention uses metal sheet materials, which are stamped and stretched multiple times through the assembly line. The metal sheet materials can be made of stainless steel, such as 2Cr13, soft brand (hot-rolled) stainless steel above 3Cr13, and soft brands such as 65Mn can also be used. Sheet metal, otherwise annealing treatment must be carried out first; 1), blanking of sheet metal, blanking according to design requirements; 2), hemming of connecting rods, hemming treatment of connecting rods; 3), stretching of the main body, the front The jaw part is stretched and the connecting rod behind is bent; 4), the edge of the jaw is trimmed, and the flash of the jaw is removed; 5), heat treatment, generally adopts vacuum quenching, and the hardness is controlled between HRC40-50 Between, preferably HRC45-48; The quenching temperature that this embodiment adopts is 850 ℃, heat preservation 15-20 minutes; Carry out plastic surgery; 7), jaw grinding, requiring the straightness of the jaws to be no more than 0.1mm; 8), surface decoration treatment, the present embodiment adopts matt chrome plating treatment on the jaws; 8), surface anti-shock insulation Layer treatment, using electrophoresis and other processes to carry out insulating coating on the surface of the jaw; 9), the jaw and the electrode plate are assembled, and the shape of the contact part between the electrode plate and the jaw with the electrode is matched with the inner wall of the jaw, that is, its The section is groove-shaped or U-shaped, and bonded with an adhesive, which can improve the strength and rigidity of the jaw; 10), the electrode is connected to the power line, and the connection between the electrode and the power line can be plug-in or direct connection. For example, direct connection or direct welding is adopted, which can improve reliability and prevent poor contact; 11), final assembly, connect a pair of left and right caliper bodies through bolts and guide wheels to make them into one; connect the plastic handle with the metal pliers body The connecting rods are connected; check the left and right dislocation of the jaws, which should be controlled within a range of less than 0.15mm; check that the force point of the jaws is closed and ensure that there is a certain gap below the force point; the packaging is disinfected, and the finished product is packaged and sterilized Storage after processing.

The invention can also be applied to a series of electric forceps, electric scissors and electric knife series products processed by the same process for fast closure treatment of various blood vessels.

Claims (9)

1, the closed treatment electricity of a kind of medical ligation speed pincers, contain the pair of metal caliper that is hinged by rotating shaft, jaw is arranged at caliper top, there is battery lead plate the jaw inboard, the connecting rod that is connected with the pincers handle is arranged at the caliper bottom, it is characterized in that: described jaw (1) is the uncovered thin-wall construction that adopts punching stretch forming; Its uncovered being oppositely arranged of the jaw of described pair of metal caliper (1).

2, the closed treatment electricity of medical ligation speed according to claim 1 pincers, it is characterized in that: its cross section of described uncovered thin-wall construction is flute profile or U-shaped.

3, the closed treatment electricity of medical ligation speed according to claim 1 pincers, it is characterized in that: its cross section of described uncovered thin-wall construction is the bottom the flute profile of protrusion or the U-shaped that protrusion is arranged at the bottom.

4, according to claim 1 or the fast closed treatment electricity pincers of 2 or 3 described medical ligation, it is characterized in that: described connecting rod (7) is an empty stomach degree of lip-rounding closing structure.

5, according to claim 1 or the closed treatment electricity of 2 or 3 described medical ligation speed pincers, it is characterized in that: described battery lead plate (4) is flute profile with jaw (1) inwall contact portion or U-shaped cooperates.

6, the processing technique of the closed treatment electricity of the described medical ligation speed of a kind of claim 1 pincers, it is characterized in that: metal caliper processing technique approach is:

A. metal plate material blanking;

B. connecting rod flanging;

C. main body stretches;

D. jaw is cut edge;

E. heat treatment;

F. jaw grinding.

7. the closed treatment electricity of medical ligation speed according to claim 6 pincers processing technique is characterized in that: carry out shaping behind the heat treatment and handle on punch press; After the jaw grinding, carry out the processing of the anti-electric shock of incrustation processing and surface insulating barrier.

8. according to claim 6 or the closed treatment electricity of 7 described medical ligation speed pincers processing technique, it is characterized in that: described heat treatment adopts vacuum hardening, and hardness is HRC40-HRC50.

9. the closed treatment electricity of medical ligation speed according to claim 7 pincers processing technique, it is characterized in that: described incrustation is handled and is adopted the inferior light chromium of plating.

Images