CN110141312B

CN110141312B - Surgical knife

Info

Publication number: CN110141312B
Application number: CN201910452675.2A
Authority: CN
Inventors: 杨晓燕; 贺菲; 王金玉
Original assignee: Jilin Fulanns Medical Technology Co ltd
Current assignee: JILIN FULANNS MEDICAL TECHNOLOGY Co.,Ltd.
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2021-10-22
Anticipated expiration: 2039-05-28
Also published as: CN110141312A

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a scalpel which comprises a first scalpel handle, a second scalpel handle, an assembled blade, a scalpel rod shell, a sliding rheostat and stabilizer equipment, wherein the end parts of the first scalpel handle and the second scalpel handle are fixedly connected with each other; the assembled blade is arranged in the first tool handle; stabilizer equipment is arranged on the inner wall of the cutter bar shell; the cutter is arranged in a cavity in the first cutter handle; a groove is arranged on the inner side of the tool nose part of the tool, and a buffering air bag is arranged in the groove; the buffer air bag is formed by splicing two parts, the interior of the buffer air bag is hollow, and a hemostatic agent can be placed in the hollow part; a large air bag is fixedly arranged at the bottom of the inner side of the first knife handle; the invention has simple structure, is convenient for doctors to adjust the cutting depth, has strong applicability, simultaneously combines the marking pen and the scalpel into a whole, and increases the accuracy of the operation.

Description

Surgical knife

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a scalpel.

Background

A scalpel is generally composed of a blade and a handle; the blade is usually provided with a cutting edge and a mounting groove butted with the scalpel handle, and the blade is usually made of pure titanium, titanium alloy, stainless steel or carbon steel and is generally disposable; when in operation and dissection, a medical scribing pen is firstly used for scribing the dissection area, then after the dissection area is planned, the cutting edge of the scalpel is used for cutting the skin and the muscle, the knife tip is used for cleaning the blood vessel and the nerve, and the knife handle is used for blunt separation. Selecting a blade and a handle of a knife with proper models according to the size requirement of the wound; because the common surgical knife has the characteristic of zero damage to tissues after cutting, the surgical knife can be applied to various operations, but the wound surface bleeding after cutting is active and the surgical knife is applied to the operations with more bleeding in a control mode.

In the brain surgery process, the needed scalpel is higher in requirement, because the brain is the whole control center of the human body, if the brain is operated, the scribing pen is needed to perform scribing treatment, and when the scalp is cut by the scalpel according to a scribing track, the scalpel and the scribing pen need to be replaced because the brain is a very important part, so that the accuracy of the operation is reduced. Then open the skull, open the brain valve finally, when opening the scalp, because the thickness of scalp is very thin, the dynamics of using the scalpel is too big or stability is not high, can injure the skull, cause the injury to the patient, simultaneously, the scalp is cut and is additionally needed the electric coagulation pincers to stanch, increased the operation step, increased the operating time, increased patient's misery, if can carry out above-mentioned step simultaneously when the scalpel begins, can shorten the operation time and reduce patient's misery, therefore need solve this problem.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the scalp incision depth in the brain surgery is not easy to control and the operation steps are various during the operation in the prior art, the invention provides a scalpel.

The technical scheme adopted by the invention for solving the technical problems is as follows: a scalpel comprises a first scalpel handle, a second scalpel handle, an assembled blade, a scalpel rod shell and a sliding rheostat; the scalpel handle shell is in a cylindrical hollow shell shape, one end of the scalpel handle shell is provided with a small end opening, the second scalpel handle is in contact with the inner wall of the small end opening of the scalpel handle shell, and an anti-skidding bulge is arranged on the left lower side of the outer wall of the scalpel handle shell and used for preventing the side slipping phenomenon when the scalpel is operated; the slide rheostat is arranged on the inner wall of the cutter bar shell and comprises a slide sheet, a sensitive spring, a resistance wire and a screw; the resistance wire is arc-shaped and is electrically connected with external equipment, and the external equipment is used for detecting the resistance value change of the resistance wire; the sliding sheet is conical, two side faces of the sliding sheet are fixedly connected to the inner wall of the cutter bar shell through sensitive springs, one conical end of the sliding sheet is contacted with the arc-shaped resistance wire, and the non-conical end of the sliding sheet is hinged to the second cutter handle; through the mutual matching among the sliding sheet, the sensitive spring, the resistance wire and the screw, the cutting depth of a doctor in an operation is analyzed by using the resistance value change of the resistance wire, so that the phenomenon that the cutting depth is too large due to too large force of the doctor is avoided; the user can carry out the operation by holding the scalpel bar by hand, and the antiskid bulge is arranged on the casing of the scalpel bar of the casing, so that a doctor can be ensured to be more stable when holding the scalpel, the scalpel is prevented from falling off, the operation is prevented from being influenced, the operation time is prolonged, and the pain of a patient is increased; because the degree of depth of cutting is different when carrying out the operation, brain skin is different to the resistance of sword with the tissue, the pressure difference of tool setting can make links firmly the gleitbretter of slide rheostat on No. two handle of a knife deflect, thereby lead to the resistance change of slide rheostat, the resistance change corresponds the change of cutting depth, the resistance is big more, then the degree of depth of cutting is deepened more, external equipment can catch the cutting depth of scalpel during operation in real time, make this scalpel be applicable to the crowd that scalp thickness is different, the suitability is strong, the degree of going on through the record operation that external equipment can be clear, it is also very helpful to medical staff's study.

Preferably, stabilizer equipment is installed on the inner wall of the cutter bar shell and is positioned above the right side of the resistance wire; the stabilizer equipment comprises a sensitive small ball, a tension spring, a laser range finder, a stabilizer box body and a set screw; the stabilizer box body is fixed on the inner wall of the cutter bar shell through a set screw, a sensitive small ball is arranged in the center of the interior of the stabilizer box body, two sides of the sensitive small ball 61 are connected to the inner wall of the stabilizer box body through tension springs, a laser range finder is arranged on the right side of the tension spring positioned at the upper end and is electrically connected with external equipment, and the external equipment is used for detecting the distance change between the sensitive small ball and the laser range finder; through the matching among the sensitive small ball, the tension spring, the laser range finder, the stabilizer box body and the set screw, the stability is judged according to the shaking amplitude of the sensitive small ball by the laser range finder, and the stability requirement when the scalpel is held by hand is simulated; the stability that the doctor handheld scalpel was very important during the operation, the scalpel has set up a stabilizer equipment and has detected stability, and the shake of handheld cutter arbor shell indicates medical staff's hand more seriously more that rocks in the operation process.

Preferably, the assembled blade comprises a marking pen, an electric push rod, a support rod, a rolling ball, a cutter, a cylindrical body and a spring; the cutter is arranged in a cavity in the first cutter handle, the position a of the cutter is fixed on the inner wall of the cavity of the first cutter handle through a hinge, the position b of the cutter is fixed in an inner groove of the first cutter handle through two springs, a first groove is formed in the position a of the cutter, and the rolling ball is arranged in the first groove; the T-shaped cylindrical body is hinged with the output end of the electric push rod, is positioned on two sides of the cylindrical body and is symmetrically distributed, and the left lower end of the cylindrical body is fixedly connected with the marking pen; the input end of the electric push rod is fixed on the inner wall of the cavity of the first tool handle through a countersunk head screw; the upper ends of the supporting rods are connected with the rolling balls, and the lower ends of the supporting rods are fixed on the cylindrical body and are at least provided with one pair; in the initial state, the two cutters are in a separated state, the marking pen is positioned between the two cutters, and the pen point of the marking pen is slightly higher than the cutter point of the cutters; through the matching among the marking pen, the electric push rod, the supporting rod, the rolling ball, the cutter, the cylindrical body and the spring, the marking pen is used for finishing the marking and then moves backwards, and the cutter is closed, so that the marking pen and the scalpel are combined into a whole; after the doctor will be about to by the regional division of cutting with the marking off pen during operation, electric putter will carry out work, the electric putter of both sides promotes the cylindricality body backward, the removal of cylindricality body will drive rectangular shape bracing piece and remove, its terminal spin will promote the cutter and rotate, the knife tip is closed, the doctor alright with use scalpel open skin in the position of marking off, because marking off and cutting do not need to change equipment, direct completion has increased the accuracy of operation promptly, operating time has also been saved, avoid the infection of patient's wound.

Preferably, the inner side of the cutter point part of the cutter is provided with a groove, the groove is internally provided with a buffering air bag, the buffering air bag is made of a flexible material, when the cutter point is closed, the groove on the inner side of the cutter point is closed immediately, the buffering air bag made of the flexible material is closed immediately, collision generated when the cutter point is closed can be avoided, the flexible air bag plays a role in buffering and damping, meanwhile, abrasion of the cutter point is reduced, and the service life of the cutter point is prolonged.

Preferably, the buffer air bag is formed by splicing two parts, the interior of the buffer air bag is hollow, a hemostatic agent can be placed in the hollow part, and the hemostatic agent is wrapped by the protective film; when the two tool points contact, the buffering air bag is compressed, the protective film is squeezed and broken, the hemostatic agent flows out from the small hole, flows out from the through hole at the upper part of the tool point and flows into the surgical cutting position from the reserved through hole of the tool point to perform hemostasis; this hemostasis process is quick effective, avoids medical staff to change and uses different equipment, avoids makeing mistakes, and save time alleviates medical staff fatigue degree for the operation is safer, high-efficient.

Preferably, the large air bag is fixedly mounted at the bottom of the inner side of the first knife handle, small tubes are connected to two sides of the large air bag, the small tubes are fixed to the inner wall of the first knife handle, the tail end of the small tubes leads to the cavity of the first knife handle, the large air bag is compressed through the cylindrical body, the buffering effect is achieved, and meanwhile air in the large air bag is discharged along with the small tubes, and the heat dissipation effect is achieved.

The invention has the beneficial effects that:

1. the scalpel disclosed by the invention is simple in structure, the cutting depth is reflected by the stress condition during cutting, and the problem caused by over-depth or over-shallow cutting is avoided; the stability degree of the handheld scalpel is reflected through the arrangement of the stabilizer, and the scalpel is convenient for a doctor to adjust in an operation.

2. According to the scalpel, the drawing pen and the scalpel blade are perfectly combined, the trouble of replacing equipment during operation is avoided, the accuracy of brain surgery is improved, the operation time is shortened, the operation time of a doctor and the pain of a patient are reduced, the scalpel is suitable for most of people with different scalp thicknesses, and the applicability is high.

3. According to the scalpel, the equipment is buffered through the buffering air bag, meanwhile, the hemostatic agent in the air bag can rapidly perform hemostasis work, the operation time is further shortened, the pain of a patient is reduced, the columnar body is buffered by compression of the large air bag, air in the large air bag is discharged along with the small tube, and the heat dissipation effect is achieved.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a schematic perspective view of the present invention

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the construction of the marker of FIG. 2 in operation;

FIG. 4 is a schematic view of the blade of FIG. 2 in operation;

FIG. 5 is a schematic view of the stabilizer apparatus at B in FIG. 2;

in the figure: the first knife handle 1, the second knife handle 2, the assembled blade 3, the knife bar shell 4, the slide rheostat 5, the stabilizer device 6, the large air bag 12, the small tube 13, the marking pen 31, the electric push rod 32, the support rod 33, the roller 34, the knife 35, the first groove 351, the buffer air bag 36, the cylindrical body 37, the countersunk head screw 38, the spring 39, the anti-skid protrusion 41, the sliding sheet 51, the sensitive spring 52, the resistance wire 53, the screw 54, the sensitive small ball 61, the tension spring 62, the laser range finder 63, the stabilizer box body 64 and the set screw 65.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below with reference to the specific embodiments, and all directions of the invention are based on the figure 1.

As shown in fig. 1 to 5, the surgical knife of the present invention includes a first knife handle 1, a second knife handle 2, an assembled blade 3, a knife rod housing 4 and a slide rheostat 5; the end parts of the first knife handle 1 and the second knife handle 2 are fixedly connected with each other; the assembled blade 3 is arranged in a cavity in the first tool handle 1; the scalpel handle shell 4 is of a cylindrical hollow shell shape, one end of the scalpel handle shell is provided with an opening at the small end, the second scalpel handle 2 is in contact with the inner wall of the opening at the small end of the scalpel handle shell 4, an anti-skid protrusion 41 is arranged on the left lower side of the outer wall of the scalpel handle shell 4, and the anti-skid protrusion 41 is used for preventing the side slipping phenomenon when the scalpel is operated; the slide rheostat 5 is arranged on the inner wall of the cutter bar shell 4, and the slide rheostat 5 comprises a slide sheet 51, a sensitive spring 52, a resistance wire 53 and a screw 54; two ends of the resistance wire 53 are mounted on the inner wall of the cutter bar shell 4 through screws 54, the resistance wire 53 is arc-shaped, the resistance wire 53 is electrically connected with external equipment, and the external equipment is used for detecting the resistance value change of the resistance wire 53; the sliding sheet 51 is conical, two side faces of the sliding sheet 51 are fixedly connected to the inner wall of the cutter bar shell 4 through the sensitive spring 52, one conical end of the sliding sheet 51 is contacted with the arc-shaped resistance wire 53, and the non-conical end of the sliding sheet 51 is hinged with the second cutter handle 2; through the mutual matching among the sliding sheet 51, the sensitive spring 52, the resistance wire 53 and the screw 54, the cutting depth in the operation of the doctor is analyzed by utilizing the resistance value change of the resistance wire 53; the user can carry out the operation by holding the scalpel bar by hand, and the antiskid bulges 41 are arranged on the casing 4 of the casing toolbar, so that the doctor can be ensured to be more stable when holding the scalpel, the scalpel is prevented from falling off, the operation is prevented from being influenced, the operation time is prolonged, and the pain of the patient is increased; because the degree of depth of cutting is different when carrying out the operation, brain skin is different with the resistance of tissue to the sword, the pressure difference of tool setting can make the gleitbretter 51 of the slide rheostat 5 of linking firmly on No. 2 handle of a knife deflect, thereby lead to the resistance change of slide rheostat 5, the resistance change corresponds the change of cutting depth, the resistance is big more, then the degree of depth of cutting is deepened more, external equipment can catch the cutting depth of scalpel during operation in real time, avoid causing the condition that the cutting depth is too deep, make this scalpel be applicable to the crowd that scalp thickness is different, the suitability is strong, the degree of going on through the record operation that external equipment can be clear, also be very helpful to medical staff's study.

As one embodiment, a stabilizer device 6 is installed on the inner wall of the knife bar housing 4, and the stabilizer device 6 is positioned at the upper right of the slide rheostat 5; the stabilizer device 6 comprises a sensitive small ball 61, a tension spring 62, a laser range finder 63, a stabilizer box 64 and a set screw 65; the stabilizer box body 64 is fixed on the inner wall of the cutter bar shell 4 through a set screw 65, a sensitive small ball 61 is arranged in the center of the interior of the stabilizer box body 64, two sides of the sensitive small ball 61 are connected to the inner wall of the stabilizer box body 64 through tension springs 62, a laser range finder 63 is arranged on the right side of the tension spring 62 at the upper end, the laser range finder 63 is electrically connected with external equipment, and the external equipment is used for detecting the distance change between the sensitive small ball 61 and the laser range finder 63; through the cooperation between sensitive bobble 61, extension spring 62 and laser range finder 63, stabilizer box 64 and holding screw 65, utilize laser range finder 63 to judge the quality of stability to the size of the range of rocking of sensitive bobble 61, the stability requirement when simulating handheld scalpel.

As one embodiment, the assembled blade 3 comprises a marking pen 31, an electric push rod 32, a support rod 33, a rolling ball 34, a cutter 35, a cylinder 37 and a spring 39; the cutter 35 is arranged in a cavity in the first cutter handle 1, the position of the cutter 35a is fixed on the inner wall of the cavity of the first cutter handle 1 through a hinge, the position of the cutter 35b is fixed in an inner groove of the first cutter handle 1 through two springs 39, a first groove 351 is formed in the position of the cutter 35a, and the rolling ball 34 is arranged in the first groove 351; the T-shaped cylindrical body 37 is hinged with the output end of the electric push rod 32, is positioned on two sides of the cylindrical body 37 and is symmetrically distributed, and the left lower end of the cylindrical body 37 is fixedly connected with the marking pen 31; the input end of the electric push rod 32 is fixed on the inner wall of the cavity of the first tool handle 1 through a countersunk head screw 38; the upper ends of the support rods 33 are connected with the rolling balls 34, and the lower ends of the support rods are fixed on the cylindrical body 37 and are at least provided with a pair; in the initial state, the two cutters 35 are in a separated state, the marking pen 31 is positioned between the two cutters 35, and the pen point of the marking pen 31 is slightly higher than the tool tip part of the cutters 35; through the matching among the marking pen 31, the electric push rod 32, the support rod 33, the rolling ball 34, the cutter 35, the cylindrical body 37 and the spring 39, the marking pen 31 is used for marking a line and then moves backwards, and the cutter 35 is closed, so that the marking pen 31 and the scalpel are combined into a whole; after the doctor will be about to being divided by the region of cutting with marking off pen 31 during the operation, electric putter 32 will carry out work, the electric putter 32 of both sides promotes cylindricality 37 backward, the removal of cylindricality 37 will drive rectangular shape bracing piece 33 and remove, its terminal spin 34 will promote the knife tip 35 and remove, cutter 35 is closed, the doctor alright with use scalpel cut open skin in the position of marking off, because marking off and cutting do not need to change equipment, direct completion, the accuracy of operation has been increased promptly, the operating time has also been saved, avoid the infection of patient's wound.

As one embodiment, a groove is formed in the inner side of the tool tip portion of the tool 35, a buffering air bag 36 is installed in the groove, the buffering air bag 36 is made of a flexible material, when the tool 35 is closed, the groove in the inner side of the tool tip portion is closed immediately, the buffering air bag 36 is closed immediately, collision generated when the tool 35 is closed is avoided, meanwhile, abrasion of the tool tip 35 is reduced, and the service life of the tool tip 35 is prolonged.

As one embodiment, the buffering air bag 36 is formed by splicing two parts, the inner part of the buffering air bag is hollow, a hemostatic agent can be placed in the hollow part, the hemostatic agent is wrapped by a protective film, the buffering air bag 36 is extruded, the protective film is broken, the hemostatic agent flows out along a small tube through a through hole of the knife tip part, and hemostasis is performed on the surgical cutting position; this hemostasis process is quick effective, avoids medical staff to change and uses different equipment, avoids makeing mistakes, and save time alleviates medical staff fatigue degree for the operation is safer, high-efficient.

As one embodiment, the large air bag 12 is fixedly mounted at the bottom of the inner side of the first knife handle 1, the small tubes 13 are connected to two sides of the large air bag 12, the small tubes 13 are fixed on the inner wall of the first knife handle 1, the tail ends of the small tubes 13 are communicated with the cavity of the first knife handle 1, the large air bag 12 is compressed through the columnar body 37, the buffering effect is achieved, and meanwhile, air in the large air bag 12 is discharged along with the small tubes 13, and the heat dissipation effect is achieved.

When the scalpel is in operation, a user can carry out an operation by holding the scalpel bar, and the antiskid bulge is arranged on the casing of the scalpel bar of the casing, so that a doctor can be ensured to be more stable when holding the scalpel, the scalpel is prevented from falling off, the operation is prevented from being influenced, the operation time is prolonged, and the pain of a patient is increased; when an operation is performed, due to the fact that the cutting depths are different, the resistance of brain skin and tissues to a knife is different, the pressure of the knife is different, and a sliding sheet fixedly connected with a sliding rheostat on the second knife handle can deflect due to the difference of the pressure of the knife, so that the resistance value of the sliding rheostat is changed, the resistance value change corresponds to the change of the cutting depth, the cutting depth is deeper if the resistance value is larger, the external equipment can capture the cutting depth of the operating knife in real time, and the situation that the cutting depth is too deep is avoided; the scalpel is suitable for people with different scalp thicknesses, has strong applicability, can clearly record the degree of operation through external equipment, and is very helpful for the study of medical staff; the stability of the scalpel held by a doctor during operation is very important, the scalpel is provided with a stabilizer device for detecting the stability, the shaking of the cutter bar shell held by the doctor during operation can cause the shaking of the sensitive small ball, the quality of the stability is judged according to the shaking amplitude of the sensitive small ball by the laser range finder, and the stability requirement of the scalpel held by the doctor is simulated; when the doctor divides the area to be cut into areas by the marking pen during operation, the electric push rods work, the electric push rods on the two sides push the cylindrical body backwards, the cylindrical body moves to drive the strip-shaped supporting rod to move, the rolling ball at the tail end of the cylindrical body pushes the cutter to rotate, the cutter is closed, the doctor can cut the skin at the marking position by using the scalpel, and the marking and the cutting can be directly finished without replacing equipment, so that the accuracy of the operation is improved, the operation time is saved, and the infection of the wound of a patient is avoided; when the cutter is closed, the groove on the inner side of the cutter point is closed immediately, the buffering air bag made of flexible materials is closed immediately, collision generated when the cutter point is closed can be avoided, the flexible air bag plays a role in buffering and shock absorption, meanwhile, abrasion of the cutter point is reduced, and the service life of the cutter point is prolonged; when the force is applied, the protective film is broken, the hemostatic agent flows out along the small tube through the through hole at the upper part of the knife tip, and the hemostasis is performed on the surgical cutting position; the hemostasis process is quick and effective, avoids medical staff from replacing and using different devices, avoids errors, saves time, relieves the fatigue degree of the medical staff, and enables the operation to be safer and more efficient; when the big air sac is compressed, the sterile helium gas can be discharged along with the small tubes on the two sides and passes through the cavity of the first knife handle, and the frictional heat is taken away.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A scalpel, characterized in that: the knife comprises a first knife handle (1), a second knife handle (2), an assembled blade (3), a knife rod shell (4) and a sliding rheostat (5); the end parts of the first knife handle (1) and the second knife handle (2) are fixedly connected with each other; the assembled blade (3) is arranged in a cavity in the first tool handle (1); the scalpel handle is characterized in that the scalpel handle shell (4) is of a cylindrical hollow shell shape, one end of the scalpel handle shell is provided with an opening at the small end, the second scalpel handle (2) is in contact with the inner wall of the opening at the small end of the scalpel handle shell (4), an anti-skidding bulge (41) is arranged on the lower left of the outer wall of the scalpel handle shell (4), and the anti-skidding bulge (41) is used for preventing the phenomenon of sideslip when the scalpel is operated; the slide rheostat (5) is installed on the inner wall of the cutter bar shell (4), and the slide rheostat (5) comprises a slide sheet (51), a sensitive spring (52), a resistance wire (53) and a screw (54); the resistance wire (53) is arranged on the inner wall of the cutter bar shell (4) through screws (54), the resistance wire (53) is arc-shaped, the resistance wire (53) is electrically connected with external equipment, and the external equipment is used for detecting the resistance value change of the resistance wire (53); the sliding sheet (51) is conical, two side faces of the sliding sheet (51) are fixedly connected to the inner wall of the cutter bar shell (4) through sensitive springs (52), one conical end of the sliding sheet (51) is in contact with an arc-shaped resistance wire (53), and the non-conical end of the sliding sheet (51) is hinged to the second cutter handle (2); through the mutual cooperation between gleitbretter (51), sensitive spring (52), resistance wire (53) and screw (54), utilize resistance wire (53) resistance value to change, the degree of depth of analysis cutting in doctor's operation avoids the doctor to exert oneself too big, causes the too big phenomenon of cutting depth.

2. A scalpel according to claim 1, wherein: a stabilizer device (6) is arranged on the inner wall of the cutter bar shell (4), and the stabilizer device (6) is positioned at the upper right of the resistance wire (53); the stabilizer device (6) comprises a sensitive small ball (61), a tension spring (62), a laser range finder (63), a stabilizer box body (64) and a set screw (65); the stabilizer box body (64) is fixed on the inner wall of the cutter bar shell (4) through a set screw (65), a sensitive small ball (61) is arranged in the center of the interior of the stabilizer box body (64), two sides of the sensitive small ball (61) are connected to the inner wall of the stabilizer box body (64) through tension springs (62), a laser range finder (63) is installed on the right side of the tension spring (62) located at the upper end, the laser range finder (63) is electrically connected with external equipment, and the external equipment is used for detecting the distance change between the sensitive small ball (61) and the laser range finder (63); through the cooperation between sensitive bobble (61), extension spring (62) and laser range finder (63), stabilizer box (64) and holding screw (65), utilize laser range finder (63) to judge the quality of stability to the size of the range of rocking of sensitive bobble (61), the stability requirement when simulating handheld scalpel.

3. A scalpel according to claim 1, wherein: the assembled blade (3) comprises a marking pen (31), an electric push rod (32), a support rod (33), a rolling ball (34), a cutter (35), a cylindrical body (37) and a spring (39); the cutter (35) is arranged in a cavity in the first cutter handle (1), the position of the cutter (35) a is fixed on the inner wall of the cavity of the first cutter handle (1) through a hinge, the position of the cutter (35) b is fixed in an inner groove of the first cutter handle (1) through two springs (39), a first groove (351) is formed in the position of the cutter (35) a, and the rolling ball (34) is arranged in the first groove (351); the T-shaped cylindrical body (37) is hinged with the output end of the electric push rod (32), is positioned on two sides of the cylindrical body (37) and is symmetrically distributed, and the left lower end of the cylindrical body (37) is fixedly connected with the marking pen (31); the input end of the electric push rod (32) is fixed on the inner wall of the cavity of the first knife handle (1) through a countersunk screw (38); the upper ends of the supporting rods (33) are connected with the rolling balls (34), and the lower ends of the supporting rods are fixed on the cylindrical body (37) and are at least provided with one pair; in the initial state, the two cutters (35) are in a separated state, the marking pen (31) is positioned between the two cutters (35), and the pen point of the marking pen (31) is slightly higher than the tool nose part of the cutters (35); through the cooperation between marking pen (31), electric putter (32), bracing piece (33), spin (34), cutter (35), cylindricality (37) and spring (39), utilize marking pen (31) to draw the line and move backward, cutter (35) closure has realized uniting two into one marking pen (31) and scalpel, has increased the accuracy of operation.

4. A scalpel according to claim 3, in which: a groove is formed in the inner side of the tool tip part of the tool (35), and a buffering air bag (36) is arranged in the groove; the collision of the cutter point part is avoided through the buffer air bag (36), and the abrasion of the cutter (35) is reduced.

5. A scalpel according to claim 4, in which: the buffer air bag (36) is formed by splicing two parts, the interior of the buffer air bag is hollow, hemostatic can be placed in the hollow part, one side, close to the cutter (35), of the buffer air bag (36) is connected with a small tube, and the hemostatic flows into a cutting position through the small tube to stop bleeding.

6. A scalpel according to claim 1, wherein: a big gasbag (12) of inboard bottom fixed mounting of handle of a knife (1), big gasbag (12) both sides have connect tubule (13), and tubule (13) are fixed in a handle of a knife (1) inner wall and terminal lead to a handle of a knife (1) cavity, compress big gasbag (12) through cylindricality body (37), have played the effect of buffering, and the air in big gasbag (12) plays the radiating effect along with tubule (13) discharge simultaneously.