CN113274192A - Telescopic inner-eye illumination electric coagulator - Google Patents
Telescopic inner-eye illumination electric coagulator Download PDFInfo
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- CN113274192A CN113274192A CN202110292805.8A CN202110292805A CN113274192A CN 113274192 A CN113274192 A CN 113274192A CN 202110292805 A CN202110292805 A CN 202110292805A CN 113274192 A CN113274192 A CN 113274192A
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- 238000005286 illumination Methods 0.000 title claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 69
- 210000003128 head Anatomy 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 210000004127 vitreous body Anatomy 0.000 claims abstract description 26
- 230000015271 coagulation Effects 0.000 claims abstract description 19
- 238000005345 coagulation Methods 0.000 claims abstract description 19
- 238000009297 electrocoagulation Methods 0.000 claims description 38
- 239000000835 fiber Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 210000000887 face Anatomy 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 230000023597 hemostasis Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 230000008733 trauma Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract 1
- 210000001508 eye Anatomy 0.000 description 42
- 208000032843 Hemorrhage Diseases 0.000 description 13
- 230000000740 bleeding effect Effects 0.000 description 13
- 210000005252 bulbus oculi Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 206010018833 Haematocoele Diseases 0.000 description 3
- 208000005873 Hematocele Diseases 0.000 description 3
- 201000004920 hematocele of tunica vaginalis testis Diseases 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035931 haemagglutination Effects 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 241000255789 Bombyx mori Species 0.000 description 1
- 208000017442 Retinal disease Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B2090/306—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using optical fibres
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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- Pathology (AREA)
- Medical Informatics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a telescopic inner eye lighting electrocoagulator for a vitreous body cutting machine, which structurally comprises a front end part, a handle part and a tail part; wherein, the front end part comprises an inner eye optical fiber core, an inner eye optical fiber shell and an electrode sliding sheet; the handle part comprises a handle optical fiber core, a structure for controlling the electrode sliding sheet to slide back and forth, an electric coagulation head power line and a power switch control button; the tail part comprises an external optical fiber core and an external power line; the optical fiber cores in the front end part, the handle part and the tail part are consecutive optical fibers, and power supply wires in the three parts are connected in sequence. The electric coagulation and illumination instrument is applied to a vitreous cutting operation, has the functions of electric coagulation and illumination, and can overcome the adverse effects of delayed operation time, untimely hemostasis, increased eye trauma and the like caused by frequent instrument replacement in the prior art.
Description
Technical Field
The invention relates to a medical appliance, in particular to a structure of an illumination head and an electrocoagulation head used by an ophthalmic vitreous body cutting machine.
Background
The vitreous body is a tissue structure occupying the largest volume in the eyeball and is colloidal. Vitrectomy is commonly performed for some retinal diseases and vitreous eye diseases. The main functional components of the vitreous body cutting machine for performing the vitrectomy operation comprise an illuminating head, an electric coagulation head, a vitreous body cutting head and a flute needle.
The structure of the lighting head mainly comprises three parts: an external optical fiber, a holding handle and an intraocular optical fiber. The external optical fiber is made of a fiber core coated flexible cladding, one end of the external optical fiber is connected to a light source of the vitreous body cutting machine, and the other end of the external optical fiber is connected to the holding handle and connected with the intraocular optical fiber; the intraocular optical fiber is about 50mm long and about 0.5mm in diameter, and is mainly composed of a core-coated cemented carbide shell. After the starting, the illumination light is generated in the vitreous body cutting machine and is guided into the eye through the two sections of optical fibers, and an operator holds the illumination head by hand, so that the illumination function in the operation of the eye is realized.
The electrocoagulation head also consists of three parts: namely an electrode wire, a gripping handle and an intraocular electrocoagulation electrode (the intraocular electrocoagulation electrode is about 50mm long and about 0.5mm in diameter). The positive electrode wire and the negative electrode wire penetrate into the handle to intersect at the tip of the electrocoagulation electrode to form a loop. When the hemostatic forceps work, the high-frequency current generates an electric heating effect at the tip, and small blood vessels can be coagulated to realize a hemostatic function.
The lighting head and the electric coagulation head are both required to be connected with a power supply, and the power supply switch is arranged at a position convenient for pedaling and is called as a pedal power supply switch.
The vitreous body cutting head structure is composed of an air guide tube, a negative pressure suction tube, a pneumatic handle and an intraocular needle-shaped cutting head, and when the vitreous body cutting head structure works, the end part of the cutting head can be used for silkworm eating the vitreous body in the eye.
The flute needle is composed of a pen-shaped handle and a needle part. The handle is provided with a silica gel capsule, and the blowing and sucking functions of the needle tip can be realized by pressing the silica gel capsule.
When the vitreous cutting operation is carried out, two minimally invasive operation holes are formed in the side wall of an eyeball, one hole extends into the illuminating head, and the other hole is prepared to be used as a vitreous cutting head, an electric coagulation hemostasis head and a flute needle which are alternately selected for use.
The cutting of the vitreous body is interrupted and the vitreous body cutting head is replaced by an electrocoagulation head for hemostasis when bleeding often occurs when the vitreous body cutting head is used for excision of the computerized vitreous body or stripping of the proliferation membrane. The time for replacing the instrument is long, hematocele can be formed in a bleeding area, and a bleeding point cannot be observed, the flute needle needs to be replaced first to blow the hematocele, and the electrocoagulation head is stretched into the blood to stop bleeding after the bleeding point is seen clearly. Therefore, the operation process needs two hands of an operator, one hand (usually the left hand) continuously holds the illuminating head to illuminate the intraocular space, and the other hand is alternately used in three instruments, namely a vitreous body cutting head, an electrocoagulation hemostasis head and a flute needle according to the operation requirement. The process of changing instruments is time consuming. Sometimes, new hematocele is formed in the process of replacing the apparatus, and the blood can not be peered to clear the blood spot, so the blood falls into the vicious circle.
In order to break the vicious circle, chinese patent application CN102525728 "multipurpose internal eye flute hook electrocoagulator" discloses an apparatus for fusing an electrocoagulation head on a flute needle ("flute hook" or "flute needle") and arranging the electrocoagulation head on the flute needle. When bleeding occurs, the hemagglutination can be performed by electric coagulation to stop bleeding after the hemagglutination is blown away by a flute needle. However, the operation of cutting the vitreous body still needs to be interrupted by applying the flute hook electric coagulator, the vitreous body cutting head is firstly withdrawn, and then the flute hook electric coagulator is placed in the eye for hemostasis, and the operation of changing instruments still delays the operation time. And traditional flute needle is independent free apparatus, need not to connect the vitreous body cutting machine, and this "flute hook electrocoagulator" need install the wire additional on former free flute needle, has consequently weakened the convenience that the flute needle used, still exists the problem that reduces operation efficiency.
Disclosure of Invention
The invention aims to provide an applicable part of a vitreous body cutting machine, which has both electrocoagulation and illumination functions, greatly reduces the frequency of replacing instruments when performing a vitreous body cutting operation, ensures that hemostasis is more timely, and overcomes the adverse effects of delaying operation time, increasing eye trauma and the like caused by frequently replacing the instruments in the prior art.
The invention combines the functional components of the lighting head and the electric coagulation head into a whole in the prior vitreous body cutting machine, and when in use, the invention simultaneously extends into an eyeball, only occupies a minimally invasive hole, can simultaneously implement lighting and electric coagulation operation, and is called as a telescopic inner eye lighting electric coagulation device.
The telescopic internal eye lighting electric condenser structurally comprises a front end part, a handle part and a tail part. When the instrument is used for operation, the front end part extends into the eye; the handle part is used for being held by an operator; the tail structure connects the instrument with the vitreous cutting machine body.
The front end part is a rod-shaped body and comprises an inner eye optical fiber core, an inner eye optical fiber shell and an electrode sliding sheet. The inner eye optical fiber core is a bundle optical fiber, and the rear end of the inner eye optical fiber core is connected with the front end of the optical fiber in the handle. The intraocular fiber core is encased in a metal casing, referred to as the intraocular fiber housing. The rear end of the inner eye optical fiber shell is fixedly connected with the handle; the electrode sliding sheet is a component of the electrocoagulation structure, is in a strip sheet shape or a round rod shape, is embedded on the inner eye optical fiber shell, has the same or similar length with the inner eye optical fiber shell, and can slide back and forth. And positive and negative pole wires are arranged in the electrode slide sheet. The anode and the cathode at the far end of the electrode slide sheet are fused into the tip of the needle-point-shaped electrocoagulation head. The near end of the electrode sliding sheet is connected with a telescopic slide bar positioned in the handle, and positive and negative pole leads in the electrode sliding sheet are respectively connected with the positive and negative poles in the telescopic slide bar in the handle.
One side of the inner eye optical fiber shell is longitudinally provided with an electrode sliding sheet sliding groove, the electrode sliding sheet is embedded in the electrode sliding sheet sliding groove, and the electrode sliding sheet can slide back and forth in the electrode sliding sheet sliding groove. When the electrocoagulation function is needed, the electrode sliding sheet is pushed by the telescopic sliding rod in the handle, and the tip of the electrocoagulation head at the far end extends out of the front end of the optical fiber core of the inner eye to implement electrocoagulation.
The handle part is a round stick body convenient for hand holding, and the structure of the handle part comprises a handle optical fiber core, a structure for controlling the electrode sliding sheet to slide back and forth, an electric coagulation head power wire and a power switch control button.
The handle optical fiber core is a bundle optical fiber, the front end of the handle optical fiber core is connected with the inner eye optical fiber core, and the rear end of the handle optical fiber core is connected with the front end of the tail optical fiber.
The handle wall is provided with a structure for controlling the electrode sliding sheet to slide back and forth, and the structure comprises a telescopic sliding rod, a telescopic sliding rod sliding groove and a push button. The telescopic slide bar device is arranged in the telescopic slide bar sliding groove, and the hand push button is connected with the tail end of the telescopic slide bar to control the telescopic slide bar to slide back and forth in the telescopic slide bar sliding groove.
The telescopic sliding rod is of an L-shaped two-section structure. The front section of the telescopic slide rod can be in a strip plate shape or a round stick shape, the telescopic slide rod runs longitudinally along the handle, and the front end of the telescopic slide rod is connected with the near end of the electrode slide sheet. The rear section of the telescopic slide rod is in a strip plate shape and is bent at a right angle with the front section, and the tail end of the rear section of the telescopic slide rod is close to the outer wall of the handle and is fixedly connected with the hand push button.
The telescopic slide bar sliding chute is of a crank-shaped three-section structure and is divided into a front section, a middle section and a rear section; the front section and the rear section longitudinally travel along the handle on two depth layers, the front section is in a deep layer, the rear section is in a shallow layer, and the middle section connects the front section and the rear section in a right-angle shape; the front section of the sliding chute of the telescopic slide bar accommodates the front section of the telescopic slide bar, and the shape and the size of the front section of the sliding chute of the telescopic slide bar are adaptive to those of the front section of the sliding chute of the telescopic slide bar; the middle section of the sliding chute of the telescopic slide bar is a larger space, and the sliding chute is used for accommodating the rear section of the telescopic slide bar and is suitable for the rear section of the telescopic slide bar to move back and forth in the sliding chute; the rear section of the sliding groove of the telescopic sliding rod is used for accommodating the hand push button, and the shape and the size of the sliding groove of the telescopic sliding rod are matched with those of the hand push button.
The hand push button is a manual control button arranged at the top of the rear section of the sliding groove and used for controlling the front and back sliding of the telescopic sliding rod and the electrode sliding sheet so as to realize the telescopic function of the electrocoagulation head. The structure is that a slidable cover plate is arranged on the top of the rear section of the handle sliding groove, and a hand push button is arranged on the slidable cover plate. The front end of the hand push button is fixedly connected with the tail end of the telescopic slide rod.
The electric coagulation circuit at the handle part of the telescopic internal eye illumination electric coagulator is arranged in such a way that positive and negative pole power supply leads in an electrode slide sheet at the front end part are backwards connected to positive and negative pole power supply leads in a telescopic slide bar in the handle, and the positive and negative pole power supply leads backwards run along the telescopic slide bar and reach the surface of the telescopic slide bar to form positive and negative pole circuit contact points; positive and negative pole power supply leads from the tail part are led into the handle and respectively reach the inner wall surface of the sliding chute of the telescopic sliding rod to form positive and negative pole circuit contact points; on the premise of ensuring that the telescopic slide bar can smoothly slide back and forth in the telescopic slide bar sliding groove, the positive and negative pole circuit contact points on the telescopic slide bar are respectively contacted with the positive and negative pole circuit contact points on the inner wall of the telescopic slide bar sliding groove according to the positive and negative poles to form a complete circuit loop.
A manual control switch can be arranged on any side of the positive and negative pole circuits in the handle. The manual control switch and the foot switch form a dual power switch fuse for the entire vitreous cutting machine.
The tail structure of the telescopic inner-eye illumination electrocoagulator comprises an outer optical fiber core and an outer power line. The front ends of the external optical fiber core and the external power line of the tail structure are respectively connected with the optical fiber core and the power line in the handle. The rear end of the tail structure is movably connected with a corresponding port of the glass body cutting machine.
In the structure, the inner eye optical fiber core positioned at the front end part, the optical fiber core positioned in the handle and the external optical fiber core at the tail part form the lighting functional part of the telescopic inner eye lighting electrocoagulator; the electrocoagulation point positioned at the front end part, the electrode sliding sheet, the telescopic sliding rod positioned in the handle, the hand push button and the positive and negative power lines form an electrocoagulation functional part of the telescopic inner-eye lighting electrocoagulator.
When the telescopic inner-eye illumination electric condenser is used, the optical fiber at the tail part is connected with a light source of a glass body cutting machine, and the electrode is connected with an electric coagulation loop of the glass body cutting machine. The front end part is placed into the eye through a minimally invasive small incision cannula (trocar) on the eyeball wall, only one minimally invasive hole is occupied, and the functions of illumination and electrocoagulation are exerted simultaneously. In all the time without electric coagulation hemostasis operation, the electrode slide sheet embedded on the inner eye optical fiber shell is in a retraction state, and has no adverse effect on illumination effect. When bleeding needs to be treated, the electric coagulation head can be extended out at the first time by operating the push button on the handle, and the bleeding stopping operation can be accurately carried out under direct vision. In the process, the operation of changing the instrument is not carried out, thereby saving the operation time. Also, because hemostasis is more timely, bleeding volume is controlled, thereby reducing the frequency of the need for a cartesian needle.
The telescopic inner-eye illumination electrocoagulator can be compatible with a vitreous body cutting machine and an operation microscope which are widely used in ophthalmology clinic at present, and has strong practicability. The circuit connection comprises two switches, double insurance ensures that the power supply is connected as required, and the device has high reliability. In addition, the electrocoagulation power supply wire and the illumination optical fiber bundle of the invention are accompanied by only slightly changing the traditional path without adding other wires, and compared with the prior art, the invention optimizes the resource allocation.
Drawings
FIG. 1 is a schematic diagram of the appearance of an ophthalmic endoeye illumination electrocoagulator of the present invention;
FIG. 2 is a schematic cross-sectional view of the front end of the ophthalmic endoeye illumination electrocoagulator of the present invention;
FIG. 3 is a schematic diagram of the construction of the inner eye illumination electrocoagulator of the present invention in longitudinal section;
FIG. 4 is a schematic view of the longitudinal cross-sectional configuration of the handle portion of the internal eye illumination electrocoagulator of this invention.
The components or locations indicated by the reference numerals in the figures are 1 ▬ outer fiber cores; 2 ▬ external power conductor; 3 ▬ a handle; 4 ▬ sliding bar chute; 5 ▬ hand push button; 6 ▬ electrode slide; 7 ▬ inner eye fiber shell; 8 ▬ electrocoagulation head tip; 9 ▬ electrode slide chute; 10 ▬ intraocular optic fiber core; 11 ▬ the rigid connection between the telescopic sliding rod and the hand push button; 12 ▬ is located at the contact point of circuit B on the front vertical surface of the rear section of the telescopic slide bar; 13 ▬ is arranged on the contact point of the circuit A on the front inner wall of the middle section of the sliding chute of the telescopic sliding rod; 14 ▬ one of the power conductors in the handle; 15 ▬ telescopic slide bar; 16 ▬ spring; 17 ▬ negative electrode circuit D contact point at the end of the front section of the telescopic slide bar; 18 ▬ is located at the contact point of circuit C on the inner wall of the sliding chute of the telescopic sliding rod; 19 ▬ a second power supply lead in the handle; 20 ▬ handle fiber core.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in FIGS. 1 and 3, the retractable internal eye-illuminating electric condenser of the present invention has a structure comprising three parts of a front end part, a handle part and a tail part which are connected from front to back.
Wherein, the front end part is a rod-shaped body and comprises an inner eye optical fiber core 10, an inner eye optical fiber shell 7 and an electrode slide sheet 6. Because the front end of the instrument extends into the eyeball when in use, the names of the components are all in the shape of 'inner eye'. The inner eye optical fiber core 10 is a bundle optical fiber, and the rear end is connected with the front end of the handle optical fiber core 20. The intraocular fiber core 10 is encased in a metal housing, referred to as the intraocular fiber housing 7. The rear end of the inner eye optical fiber shell 7 is fixedly connected with the handle 3.
As shown in fig. 1 and 2, an electrode slide slot 9 with a width of 0.2 mm is longitudinally arranged on the side wall of the inner-eye optical fiber housing 7, the electrode slide 6 is in the shape of a strip or a round rod, the length of the electrode slide is the same as or similar to that of the inner-eye optical fiber housing 7, and the electrode slide 6 is embedded in the electrode slide slot 9 and can slide back and forth along the inner-eye optical fiber housing 7. The left and right sides of the electrode sliding sheet 6 are combined with the electrode sliding sheet sliding groove 9 by adopting a concave-convex embedded structure. Two power supply leads are arranged in the electrode sliding sheet 6 and are respectively the positive pole and the negative pole of a power supply. The anode and the cathode at the far end of the electrode slide sheet 6 are fused into a needle-point-shaped electrocoagulation head tip 8. The rear end of the electrode sliding vane sliding chute 9 is connected with a telescopic sliding bar sliding chute 4 in the handle 3. The rear end of the electrode sliding sheet 6 is connected with a telescopic slide rod 15 in the handle, and positive and negative pole power supply leads in the electrode sliding sheet 6 are respectively connected with positive and negative pole power supply leads in the telescopic slide rod 15.
As shown in figures 3 and 4, the handle 3 of the telescopic internal eye lighting electrocoagulator of the invention is a round stick body which is convenient for holding. The handle 3 is internally provided with a handle part optical fiber core 20, a structure for controlling the electrode slide sheet 6 to slide back and forth, an electrocoagulation power supply lead and a power supply switch.
The handle part optical fiber core 20 is a bundle-shaped optical fiber, the front end of which is connected with the inner eye optical fiber core 10, and the rear end of which is connected with the tail optical fiber 1.
As shown in fig. 4, the structure of the handle portion for controlling the electrode slide to slide back and forth includes a telescopic slide rod 15, a telescopic slide rod sliding slot 4 and a push button 5. The telescopic slide bar 15 is arranged in the telescopic slide bar sliding groove 4 and can slide back and forth. The hand push button 5 is rigidly connected with the tail end of the telescopic slide rod 15.
The telescopic sliding rod 15 is an L-shaped two-section structure. The front section of the electrode slide sheet can be in a strip plate shape or a round stick shape, the electrode slide sheet runs along the longitudinal direction of the handle 3, and the front end of the electrode slide sheet is connected with the near end of the electrode slide sheet 6. The rear section of the telescopic slide rod 15 is in the shape of a strip plate and is bent at a right angle with the front section of the telescopic slide rod 15. The vertical surface of the rear section of the telescopic slide rod 15 is vertical to the longitudinal axis of the handle 3. The tail end of the rear section of the telescopic slide rod 15 is close to the outer wall of the handle 3 and is fixedly connected with the hand push button 5.
The telescopic slide bar chute 4 is a crank-shaped three-section structure and is divided into a front section, a middle section and a rear section. The front section and the rear section are longitudinally moved on two depth layers along the handle 3, the front section is in a deep layer, the rear section is in a shallow layer, and the middle section is connected with the front section and the rear section in a right-angle shape respectively. The front section of the telescopic slide bar sliding chute 4 is used for accommodating the front section of the telescopic slide bar 15, and the shape and the size of the front section are adaptive; the middle section of the telescopic slide bar sliding groove 4 is a larger space, accommodates the rear section of the telescopic slide bar 15 and is suitable for the rear section of the telescopic slide bar 15 to move back and forth in the middle section; the rear section of the telescopic sliding rod sliding groove 4 is used for accommodating a hand push button 5, and the shape and the size of the hand push button are matched with those of the hand push button.
The hand push button 5 is a manual control button arranged at the top of the rear section of the telescopic slide bar sliding groove 4 and used for controlling the front and back sliding of the telescopic slide bar 15 and the electrode sliding sheet 6 to realize the telescopic function of the electrocoagulation head 8. The structure is that a slidable cover plate with insulation sealing is arranged at the top of the rear section of a sliding groove 4 of a telescopic sliding rod, and a hand push button 5 is arranged on the slidable cover plate. The front end of the hand push button 5 is rigidly connected with the tail end of the telescopic slide bar 15.
FIG. 4 shows an embodiment of the electrocoagulation circuit arrangement at the site of the handle 3. The inner wall of the front section of the telescopic sliding rod chute 15 is made of metal conductive materials or is embedded with conductive metal strips which are connected with the second 19 of the power supply lead in the handle to form a C contact point 18 of the electrocoagulation circuit; and a power supply lead in the telescopic slide bar 15 is exposed on the surface of the telescopic slide bar 15 when reaching the rear end of the front section of the telescopic slide bar 15 to form a D contact point 17 of the electrocoagulation circuit. The length and width of the C contact point 19 are sufficient to keep the D contact point 17 continuously and closely contacted with the C contact point 18 when the telescopic slide rod 15 slides back and forth.
A block-shaped conductor is arranged on the front inner wall of the middle section of the telescopic sliding rod chute 4, is connected with one 14 of power supply leads in the handle 3 and is insulated with the periphery to form an A contact point 13 of the electrocoagulation circuit; a power supply lead in the telescopic slide bar 15 reaches the middle section of the telescopic slide bar 15 and then is exposed to the front vertical surface of the middle section of the telescopic slide bar 15 and the part corresponding to the block-shaped electric conductor 13 to form a B contact point 12 of the electrocoagulation circuit.
And a push-pull spring 16 is arranged between the front inner wall of the telescopic slide bar sliding groove 4 and the front vertical surface of the middle section of the telescopic slide bar 15, so that the contact point B12 and the contact point A13 are kept in a separated state in a non-working state, and a power supply is turned off.
The contact and separation of the circuit contact point A and the circuit contact point B are controlled by the push-pull action of the push-pull button 5 and the push-pull action of the spring 16, so that a manual power switch is formed.
The tail structure of the telescopic internal eye lighting electric condenser comprises an external optical fiber core 1 and an external power supply lead 2. The tail ends of the external optical fiber core 1 and the external power lead 2 are connected with a main machine of the glass body cutting machine.
In the circuit shown in fig. 4, the power supply lead 14, the a contact 13, and the B contact 12 are set to be positive lines, and the power supply lead 19, the C contact 18, and the D contact 17 are set to be negative lines. With this setting, the principle of operation of the circuit and method of use of the apparatus of a retractable endo-eye illumination electrocoagulator of this invention is described as follows.
A power supply cathode D contact point 17 arranged on the side surface of the rear end of the front section of the telescopic slide bar 15 is always attached and connected with a cathode C contact point 18 arranged on the inner wall of the telescopic slide bar sliding chute 4, so that a cathode circuit is always connected; and the positive pole of the power supply forms a loop when the hand push button 5 is pushed forwards to enable the positive pole B contact point 12 of the front vertical surface of the middle section of the telescopic slide rod 15 to be in contact with the contact point A13 on the front inner wall of the telescopic slide rod sliding chute 4. At the moment, the electric coagulation head tip 8 of the electrode slide sheet 6 extends out of the front end of the inner eye optical fiber shell 7, the positive and negative pole circuits of the power supply at the handle part are both connected, and the electric coagulation system enters a working state. At the moment, a foot-operated power switch is used for starting the power supply, the electric coagulation head tip 8 discharges, and cauterization and hemostasis are completed on the surgical bleeding site. When the power switch is turned off by foot, the hand releases the push button 5, the telescopic slide rod 15 slides backwards under the push of the spring 16, the electrode slide sheet 6 retracts into the electrode slide sheet slide groove 9 of the inner eye optical fiber shell 7, the positive electrode B contact point 17 of the front vertical surface of the middle section of the telescopic slide rod 15 is separated from the contact point A13 on the front inner wall of the telescopic slide rod slide groove 4, the positive electrode is disconnected, the circuit is interrupted, and the electrocoagulation head is recovered to be in a non-working state.
When the vitreous body cutting machine is used for performing ophthalmologic operation, the external optical fiber core 1 of the telescopic internal eye illumination condenser is connected to the light source port of the vitreous body cutting machine before operation, and the external power lead 2 is connected to the power source port of the vitreous body cutting machine. The operator holds the handle 3 with one hand and places the thumb on the hand push button 5 to place the front end of the electrocoagulator into the eye from the minimally invasive hole. When the hand push button 5 is in the released state, the electrode slide 6 is retracted within the inner eye fiber housing 7, and the device only performs the illumination function. When bleeding occurs in surgical fields and electrocoagulation needs to be performed, the hand push button 5 is pushed forwards, the pointed end 8 of the transmission electrocoagulation head extends out of the chute of the inner eye optical fiber shell 7, meanwhile, the spring 16 is compressed, the contact point 12 of the positive circuit B is in contact with the contact point 13 of the positive circuit A, the power supply is started by using the pedal power switch, the pointed end 8 of the electrocoagulation head discharges, cauterization and hemostasis are completed on the bleeding part of the surgical fields, and the one-time working flow of the electrocoagulation head is realized. When the electrocoagulation function is not used, the spring 16 pushes the telescopic slide rod 15 and the hand push button 5 to slide backwards, so as to drive the electrocoagulation head tip 8 to retract into the inner eye optical fiber shell 7, and the equipment enters a non-working state.
Claims (10)
1. A telescopic inner eye lighting electrocoagulator is suitable for being matched with an ophthalmic vitreous body cutting machine for use and is characterized by comprising a front end part, a handle part and a tail part; wherein, the front end part is a rod-shaped body which comprises an inner eye optical fiber core, an inner eye optical fiber shell and an electrode sliding sheet; the handle is a round stick body convenient to hold by hand, and the structure of the handle comprises a handle optical fiber core, a structure for controlling the electrode sliding sheet to slide back and forth, an electric coagulation head power line and a power switch control button; the tail structure comprises an external optical fiber core and an external power line; the optical fiber cores in the front end part, the handle part and the tail part are optical fibers which are connected in series, power supply wires in the front end part, the handle part and the tail part are sequentially connected according to the positive and negative poles, the rear end of an inner eye optical fiber shell at the front end part is connected with the front end of the handle, and the rear end of the tail part structure corresponds to a corresponding port of the glass body cutting machine and can be movably connected.
2. The telescopic electric coagulator for inner eye illumination as claimed in claim 1, wherein the inner eye fiber casing at the front end part is made of metal material, the inner eye fiber core is wrapped in the casing, an electrode slide chute is longitudinally arranged at one side surface of the inner eye fiber casing, and the strip-shaped or round-rod-shaped electrode slide is embedded in the electrode slide chute and can slide back and forth.
3. The telescopic endo-eye illuminating electrocoagulator of claims 1 and 2, wherein positive and negative power supply wires are provided inside the electrode slide, which merge at the distal end into a needle-point-like electrocoagulation head tip.
4. The telescopic inner-eye lighting electrocoagulator of claim 1, wherein a structure for controlling the extension and retraction of the electrode slide at the front end is arranged in the handle wall and comprises a telescopic slide bar, a telescopic slide bar chute and a push button; the near end of the electrode sliding sheet at the front end is connected with the front end of a telescopic sliding rod in the handle.
5. The telescopic inner eye illuminating electrocoagulator of claim 4, wherein the telescopic slide bar in the handle is of an "L" shape, the front section of the telescopic slide bar runs longitudinally along the handle, the rear section of the telescopic slide bar is of a slat shape and is bent at a right angle with the front section, the front and rear vertical faces of the slat shape are perpendicular to the central axis of the handle, and the tail end of the telescopic slide bar is close to the outer wall of the handle and is fixedly connected with the hand push button.
6. The telescopic internal eye lighting electrocoagulator of claim 5, wherein the telescopic slide bar is wrapped with positive and negative power supply leads, the front ends of the leads are respectively connected with the positive and negative power supply leads in the electrode slide bar and run backwards, one end of the lead is exposed to the side of the front section of the telescopic slide bar to form a power supply lead contact point, and the other end of the power supply lead is exposed to the far middle surface of the middle section of the telescopic slide bar to form another contact point of the power supply lead.
7. The telescopic endoeye illuminating electrocoagulator of claim 4, wherein the telescopic slide bar chute is a three-section structure in the shape of a crank divided into a front section, a middle section and a rear section; the front section and the rear section longitudinally travel along the handle on two depth layers, the front section is in a deep layer, the rear section is in a shallow layer, and the middle section connects the front section and the rear section in a right-angle shape; the front section of the sliding chute of the telescopic slide bar accommodates the front section of the telescopic slide bar, and the shape and the size of the front section of the sliding chute of the telescopic slide bar are adaptive to those of the front section of the sliding chute of the telescopic slide bar; the middle section of the sliding chute of the telescopic slide bar is a larger space, and the sliding chute is used for accommodating the rear section of the telescopic slide bar and is suitable for the rear section of the telescopic slide bar to move back and forth in the sliding chute; the rear section of the sliding groove of the telescopic sliding rod is used for accommodating the hand push button, and the shape and the size of the sliding groove of the telescopic sliding rod are matched with those of the hand push button.
8. The telescopic endoeye illuminating electrocoagulator of claims 1 and 6, wherein positive and negative polarity power supply leads from the tail are introduced into the handle to reach the inner wall surface of the telescopic slide bar chute, respectively, forming positive and negative polarity circuit contacts; the positive and negative pole circuit contact points on the inner wall of the sliding chute of the telescopic slide bar correspond to the positive and negative pole circuit contact points on the telescopic slide bar, and are respectively contacted according to the positive and negative poles to form a complete circuit loop.
9. The retractable internal eye-illuminating electric condenser as set forth in claim 8, wherein an electrode circuit contact point on the retractable slide bar is provided on the surface of the front end of the retractable slide bar, and a circuit contact point of the same polarity is provided on the inner wall of the slot of the retractable slide bar corresponding thereto, the contact points being elongated to keep the contact points in continuous close contact when the retractable slide bar slides back and forth;
the other polarity circuit contact point on the telescopic slide bar is arranged on the front vertical face of the middle section of the telescopic slide bar, the inner wall of the front of the middle section of the sliding groove of the telescopic slide bar is provided with a block-shaped electric conductor, the upper end of the block-shaped electric conductor is connected with the other polarity power supply wire in the handle, the block-shaped electric conductor is insulated with the periphery and corresponds to the circuit contact point of the front vertical face of the middle section of the telescopic slide bar in position, a push-pull spring is arranged between the inner wall of the front of the sliding groove of the telescopic slide bar and the front vertical face of the middle section of the telescopic slide bar, and the contact and the separation of the circuit contact points are controlled through the push-pull action of a push button and the spring to form a manual power switch.
10. The telescopic inner-eye lighting electrocoagulator of claim 1, wherein the push button is a manual control button disposed at the top of the rear section of the slide slot of the telescopic slide rod for controlling the back and forth movement of the telescopic slide rod and the electrode slide, and is configured such that a slidable cover plate sealed by insulation is disposed at the top of the rear section of the slide slot of the telescopic slide rod, and the push button is mounted on the slidable cover plate, and the front end of the push button is fixedly connected to the rear end of the telescopic slide rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110292805.8A CN113274192A (en) | 2021-03-18 | 2021-03-18 | Telescopic inner-eye illumination electric coagulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110292805.8A CN113274192A (en) | 2021-03-18 | 2021-03-18 | Telescopic inner-eye illumination electric coagulator |
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| CN204636271U (en) * | 2015-03-05 | 2015-09-16 | 上海安清医疗器械有限公司 | There is the hysteroscope of electrode knife |
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| CN209253105U (en) * | 2018-05-22 | 2019-08-16 | 重庆医科大学附属永川医院 | Telescopic multifunctional electric knife-pen |
| CN216221984U (en) * | 2021-03-18 | 2022-04-08 | 中国人民解放军总医院第六医学中心 | Telescopic inner-eye illumination electric coagulator |
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2021
- 2021-03-18 CN CN202110292805.8A patent/CN113274192A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204636271U (en) * | 2015-03-05 | 2015-09-16 | 上海安清医疗器械有限公司 | There is the hysteroscope of electrode knife |
| CN207666689U (en) * | 2017-06-28 | 2018-07-31 | 深圳市儿童医院 | A kind of multifunctional dual-head electric knife-pen |
| CN209253105U (en) * | 2018-05-22 | 2019-08-16 | 重庆医科大学附属永川医院 | Telescopic multifunctional electric knife-pen |
| CN216221984U (en) * | 2021-03-18 | 2022-04-08 | 中国人民解放军总医院第六医学中心 | Telescopic inner-eye illumination electric coagulator |
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