CN215994070U - Hemostasis auxiliary electrocoagulation biopsy forceps - Google Patents

Hemostasis auxiliary electrocoagulation biopsy forceps Download PDF

Info

Publication number
CN215994070U
CN215994070U CN202122448597.4U CN202122448597U CN215994070U CN 215994070 U CN215994070 U CN 215994070U CN 202122448597 U CN202122448597 U CN 202122448597U CN 215994070 U CN215994070 U CN 215994070U
Authority
CN
China
Prior art keywords
sleeve
groove
biopsy forceps
main rod
sliding sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122448597.4U
Other languages
Chinese (zh)
Inventor
路志红
周海军
俞雪静
汪静
张乾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIAXING HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Original Assignee
JIAXING HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIAXING HOSPITAL OF TRADITIONAL CHINESE MEDICINE filed Critical JIAXING HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Priority to CN202122448597.4U priority Critical patent/CN215994070U/en
Application granted granted Critical
Publication of CN215994070U publication Critical patent/CN215994070U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Surgical Instruments (AREA)

Abstract

The utility model discloses an auxiliary electricity congeals biopsy forceps stanchs, include: the middle part of the main rod is provided with a through groove, the front end of the main rod is provided with an extension pipe, and the through groove is communicated with the extension pipe; a traction wire, the tail end of which is arranged in the through groove, and the front end of which extends out of the extension tube; the tail end of the metal sleeve is connected into the extension pipe, the front end of the metal sleeve is provided with a tong head, and the traction metal wire penetrates through the metal sleeve and is movably connected with the tong head. The utility model has the advantages that: 1. connect power supply unit through the electrode end, make and pull wire and binding clip can electrically conduct, can press from both sides the operation when getting the operation using biopsy forceps, carry out the electricity congeals hemostasis to the affected part, the equipment quantity that uses when having reduced the operation makes things convenient for the doctor to carry out the hemostasis operation.

Description

Hemostasis auxiliary electrocoagulation biopsy forceps
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to supplementary electricity congeals biopsy forceps of hemostasis.
Background
The gallbladder is an important organ of a human body, and when the gallbladder is cut, the metabolism of the bile is changed, more complications are caused, and the problem of the digestive tract is caused. The detection rate of gallbladder polyps tends to rise year by year. The gallbladder polyps are treated by adopting a laparoscope cholecystectomy in clinic, and the operation type can easily damage the biliary tract, thereby reducing the life quality of patients. The patient is damaged to a certain degree, for example, bile can enter the intestinal tract after the operation, and dyspepsia occurs.
In the minimally invasive gallbladder-protecting polypus-taking operation, when the gallbladder mucosa bleeding treatment is carried out, the surgical field exposure is poor due to the factors of immature technique, insufficient academic ability and insufficient experience of part of surgeons, different hemostasis modes and surgical instrument differences in the operation and the like, so that the hemostasis operation becomes difficult
To sum up, for solving current technical problem, the utility model designs a simple structure, can carry out quick accurate electricity congeal hemostasis, but accurate positioning, binding clip angle regulation, whole sealed hemostasis auxiliary electricity congeals biopsy forceps who avoids the electric leakage.
Disclosure of Invention
The utility model discloses a solve current technical problem, designed a simple structure, can carry out quick accurate electricity congeal hemostasis, but accurate positioning, binding clip angle regulation, whole sealed hemostasis auxiliary electricity congeals biopsy forceps who avoids the electric leakage.
The purpose of the utility model can be realized by the following technical proposal:
a hemostatic assisted electrocoagulation biopsy forceps comprising:
the middle part of the main rod is provided with a through groove, the front end of the main rod is provided with an extension pipe, and the through groove is communicated with the extension pipe;
a traction wire, the tail end of which is arranged in the through groove, and the front end of which extends out of the extension tube;
the tail end of the metal sleeve is connected into the extension pipe, the front end of the metal sleeve is provided with a tong head, and the traction metal wire penetrates through the metal sleeve and is movably connected with the tong head;
the sliding sleeve, the sliding sleeve cover is established in the mobile jib outside and with mobile jib sliding fit, be equipped with fixed clamp splice in the sliding sleeve, fixed clamp splice with through groove sliding fit, fixed clamp splice middle part and the end-to-end connection who pulls the wire, the sliding sleeve side is equipped with Y type branch pipe, be equipped with the electrode end in the Y type branch pipe, the electrode end is connected with the wire electricity of pulling, the sliding sleeve bilateral symmetry is equipped with the handle.
Furthermore, a first sealing sleeve is arranged between the front end of the main rod and the front end of the sliding sleeve.
Furthermore, the junction of the main rod and the first sealing sleeve is provided with a first clamping groove, the junction of the sliding sleeve and the first sealing sleeve is provided with a second clamping groove, and a first connecting clamping strip is arranged at the position corresponding to the first clamping groove and the second clamping groove in the first sealing sleeve.
Furthermore, a second sealing sleeve is arranged between the tail end of the main rod and the tail end of the sliding sleeve.
Further, the junction of the main rod and the second sealing sleeve is provided with a third clamping groove, the junction of the sliding sleeve and the second sealing sleeve is provided with a fourth clamping groove, and second connecting clamping strips are arranged in the second sealing sleeve corresponding to the third clamping groove and the fourth clamping groove.
Further, the end of mobile jib is equipped with the spliced pole, it is equipped with the thumb lantern ring to rotate on the spliced pole, the cover is equipped with bending apparatus on the metal sleeve of binding clip rear end, bending apparatus includes crooked piece, takes out the line, crooked piece is the wedge, rotate between the great one end of crooked piece and connect, the great one end side of crooked piece be equipped with metal sleeve complex crooked groove, pass the line of taking out between the less one end of crooked piece, crooked piece outside is equipped with sealed folding cover, the spliced pole surface is equipped with the helicla flute, the line of taking out passes the mobile jib and cooperates with the helicla flute, the end and the thumb lantern ring of taking out the line are connected.
Furthermore, the handle comprises wing-shaped pieces and finger rings, the wing-shaped pieces are connected to two sides of the sliding sleeve, and the finger rings are arranged in the middles of the wing-shaped pieces.
Furthermore, an insulating sleeve is sleeved on the outer side of the metal sleeve.
Compared with the prior art, the utility model discloses the structure sets up rationally: 1. the electrode end is connected with the power supply equipment, so that the traction metal wire and the forceps head can conduct electricity, the electric coagulation hemostasis can be performed on the affected part while the biopsy forceps are used for clamping, the number of equipment used in the operation is reduced, and the hemostasis operation is convenient for doctors; 2. the whole seal is realized, the movable part is sealed by the first seal sleeve and the second seal sleeve, the liquid is prevented from entering and causing electric leakage, and the cleaning can be carried out.
Drawings
FIG. 1 is a general schematic view of the hemostatic auxiliary electrocoagulation biopsy forceps;
FIG. 2 is a schematic structural view of the hemostatic auxiliary electrocoagulation biopsy forceps;
FIG. 3 is a schematic illustration of the boom;
FIG. 4 is a schematic view of the inside of the sliding sleeve;
figure 5 is a schematic view of the interior of the folding gland;
FIG. 6 is a schematic view of a bending apparatus;
FIG. 7 is a schematic view of another perspective of the bending apparatus;
referring to fig. 1-4, wherein: 1. a main rod; 11. passing through the slot; 12. an extension tube; 13. a first clamping groove; 14. a third clamping groove; 15. connecting columns; 151. a helical groove; 16. a thumb ring; 2. drawing a metal wire; 3. a metal sleeve; 31. a binding clip; 32. an insulating sleeve; 4. a sliding sleeve; 41. fixing the clamping block; 42. a Y-shaped branch pipe; 421. an electrode tip; 43. a handle; 431. a wing-shaped sheet; 432. a ring; 44. a second clamping groove; 45. a clamping groove IV; 5. a first seal cartridge; 51. a first connecting clip strip; 6. a second seal cartridge; 61. a second connecting clip strip; 7. a bending device; 71. a bending block; 711. a curved groove; 72. drawing a wire; 8. and folding the sealing sleeve.
Detailed Description
The technical solution of the present invention is further explained below with reference to the following examples. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
a hemostatic-assisted electrocoagulation biopsy forceps, comprising:
the middle of the main rod 1 is provided with a through groove 11, the front end of the main rod 1 is provided with an extension pipe 12, and the through groove 11 is communicated with the extension pipe 12;
a traction wire 2, the tail end of the traction wire 2 is arranged in the through groove 11, and the front end of the traction wire 2 extends out of the extension pipe 12;
the tail end of the metal sleeve 3 is connected into the extension tube 12, the front end of the metal sleeve 3 is provided with a binding clip 31, and the traction metal wire 2 penetrates through the metal sleeve 3 and is movably connected with the binding clip 31;
sliding sleeve 4, sliding sleeve 4 cover establish in the mobile jib 1 outside and with mobile jib 1 sliding fit, be equipped with fixed clamp splice 41 in the sliding sleeve 4, fixed clamp splice 41 with through groove 11 sliding fit, fixed clamp splice 41 middle part with draw the end-to-end connection of wire 2, sliding sleeve 4 side is equipped with Y type branch pipe 42, be equipped with electrode end 421 in the Y type branch pipe 42, electrode end 421 with draw the wire 2 electricity and be connected, sliding sleeve 4 bilateral symmetry is equipped with handle 43.
Specifically, when performing a gallbladder-protecting polyp-taking operation through a soft choledochoscope, the forceps head 31 extends from the choledochoscope to an affected part through the metal sleeve 3, a doctor holds the main rod 1 to operate, and the doctor operates the handle 43 with the fingers to control the sliding sleeve 4 to slide on the main rod 1, so as to control the push-pull traction of the traction metal wire 2 in the metal sleeve 3 and control the opening and closing of the forceps head 31;
the electrode end 421 is connected with a power supply device, so that the traction metal wire 2 and the binding clip 31 can input current, and can immediately stop bleeding of the wound surface of the root mucosa of the extracted gallbladder polyp;
the method comprises the following steps of (1) carrying out data analysis by adopting IBMStatistics Spss23.00 statistical software, wherein the time required by the gallbladder mucosa bleeding amount and the hemostasis mode is respectively counted in an effective, effective and ineffective manner, the normal measurement data of gallbladder bleeding and perforation counting is represented by 'Mean plus or minus SD', the abnormal data is represented by median (IQR), the counting data is represented by the number of cases or percentage, the measurement data is represented by (x plus or minus s), and two groups of independent, normal and uniform variance data groups are compared and subjected to t test; the comparison of the sample rate of postoperative recurrence rate adopts chi fang test; p <0.05 is statistically significant for differences;
evaluation index
(1) A, the gallbladder mucosa bleeding amount: bleeding amount is 0-1 ml; b is effective: bleeding amount is 1-5 ml; c, invalidation: the amount of bleeding is more than 5 ml;
(2) time required for single hemostasis: a, effect is shown: within 5 seconds: b is effective: 5-15 seconds; c, invalidation: 15 seconds to 1 minute;
(3) and (3) workload calculation: recording the time required for a single polyp removal from pre-hemostasis preparation to the end of hemostasis (including the time for a pre-nurse to prepare the device, use on the table, etc.);
(4) observing whether gallbladder hemorrhage and perforation occur after 1 week of operation;
(5) postoperative recurrence rate: b ultrasonic examination for 6 months after operation is carried out to calculate the recurrence rate of gallbladder polyps;
the following table is a comparative test data table of an experimental group using the hemostasis assisted electrocoagulation biopsy forceps and a control group using 24mg/L norepinephrine solution to flush the gallbladder mucosa for hemostasis:
Figure BDA0003298056570000041
TABLE 1 comparison of hemostatic effect of gallbladder mucosa of two groups of patients
Figure BDA0003298056570000051
TABLE 2 comparison of hemostatic time of gallbladder mucosa for two groups of patients
The primary verification proves that the hemostasis auxiliary electrocoagulation biopsy forceps have obvious blood stopping effect in the minimally invasive gallbladder-protecting operation.
Example two:
the difference between the second embodiment and the first embodiment is that a first sealing sleeve 5 is arranged between the front end of the main rod 1 and the front end of the sliding sleeve 4.
The junction of the main rod 1 and the first sealing sleeve 5 is provided with a first clamping groove 13, the junction of the sliding sleeve 4 and the first sealing sleeve 5 is provided with a second clamping groove 44, and the first sealing sleeve 5 is internally provided with a first connecting clamping strip 51 corresponding to the first clamping groove 13 and the second clamping groove 44.
And a second sealing sleeve 6 is arranged between the tail end of the main rod 1 and the tail end of the sliding sleeve 4.
The junction of the main rod 1 and the second sealing sleeve 6 is provided with a third clamping groove 14, the junction of the sliding sleeve 4 and the second sealing sleeve 6 is provided with a fourth clamping groove 45, and the second sealing sleeve is internally provided with a second connecting clamping strip 61 corresponding to the third clamping groove 14 and the fourth clamping groove 45.
Specifically, the first sealing sleeve 5 and the second sealing sleeve 6 are made of elastic materials, and can stretch or wrinkle in the sliding direction of the sliding sleeve 4 when a doctor operates the sliding sleeve to slide, so that a gap between the main rod 1 and the sliding sleeve 4 is completely sealed, liquid is prevented from entering the through groove 11 and contacting the traction metal wire 2 to cause short circuit, and the first sealing sleeve 5 and the second sealing sleeve 6 can also play a complete sealing role in the cleaning process of the hemostasis auxiliary electrocoagulation biopsy forceps; first seal cover 5 is connected through first joint card strip 51 and draw-in groove 14, draw-in groove two 44, and second seal cover 6 is connected through second joint card strip 61 and draw-in groove three 14, draw-in groove four 45, compares in using mode such as sticky to connect, and the expiry date is longer, is difficult to produce the gap and makes the liquid inflow, and sealed effect is better, and when producer's production, the equipment is convenient more quick, and production efficiency is high.
Example three:
the difference between the third embodiment and the first embodiment is that the tail end of the main rod 1 is provided with a connecting column 15, a thumb ring 16 is rotatably arranged on the connecting column 15, the metal sleeve 3 at the rear end of the binding clip 31 is sleeved with a bending device 6, the bending device 7 comprises a bending block 71 and a drawing line 72, the bending block 71 is wedge-shaped, the larger end of the bending block 71 is rotatably connected, the side face of the larger end of the bending block 71 is provided with a bending groove 711 matched with the metal sleeve 3, the drawing line 72 penetrates through the smaller end of the bending block 71, a sealing folding sleeve 8 is arranged on the outer side of the bending block 71, the surface of the connecting column 15 is provided with a spiral groove 151, the drawing line 72 penetrates through the main rod 1 and is matched with the spiral groove 151, and the tail end of the drawing line 72 is connected with the inner side of the thumb ring 16.
Specifically, when a doctor operates the thumb on the thumb sleeve ring 16, and when the forceps head 31 needs to be turned, the doctor rotates the thumb sleeve ring 16, the drawing line 72 is drawn backwards around the spiral groove 151, and draws the bending block 71, so that the bending block 71 rotates around the larger end, the smaller ends of the bending blocks 71 approach each other, and the metal sleeve 3 at the joint of the bending device 7 is bent, thereby realizing the turning effect of the forceps head 31; the bending groove 711 can limit the position of the metal sleeve 3 and prevent the metal sleeve 3 from falling off to the side surface of the bending block 71 when being bent; the folding gland 8 can completely cover the bending device 7 to prevent liquid from entering, and the folding gland 8 can be bent together with the bending device 7.
Example four:
the fourth embodiment is different from the first embodiment in that the handle 43 includes wing-shaped pieces 431 and finger rings 432, the wing-shaped pieces 431 are connected to both sides of the sliding sleeve 4, and the finger rings 432 are arranged in the middle of the wing-shaped pieces 431.
Specifically, when the doctor operates the sliding sleeve, the doctor inserts fingers into the finger ring 432, pulls or pushes the wing-shaped piece 431 to drive the sliding sleeve 4, and compared with the operation of directly clamping the sliding sleeve 4 by the fingers, the finger ring 432 is more stably fixed on the fingers, and misoperation such as releasing the hands is not easy to occur.
Example five:
the difference between the fifth embodiment and the first embodiment is that an insulating sleeve 32 is sleeved outside the metal sleeve 3.
Specifically, the insulating sleeve 32 can insulate and isolate the whole metal sleeve 3, so as to prevent the current carried by the traction metal wire 2 from being led out by the metal sleeve 3 to cause electric leakage; the insulating sleeve 32 is sealingly connected to the extension tube 12 to prevent liquid from penetrating from the extension tube 12 through the slot 11 and into contact with the traction wire 2.
The preferred embodiments of the present invention are described herein, but the scope of the present invention is not limited thereto. Modifications or additions to or replacement by similar means to those skilled in the art to which the invention pertains to the specific embodiments described herein are intended to be covered by the scope of the invention.

Claims (8)

1. A hemostatic-assisted electrocoagulation biopsy forceps, comprising:
the middle part of the main rod is provided with a through groove, the front end of the main rod is provided with an extension pipe, and the through groove is communicated with the extension pipe;
a traction wire, the tail end of which is arranged in the through groove, and the front end of which extends out of the extension tube;
the tail end of the metal sleeve is connected into the extension pipe, the front end of the metal sleeve is provided with a tong head, and the traction metal wire penetrates through the metal sleeve and is movably connected with the tong head;
the sliding sleeve, the sliding sleeve cover is established in the mobile jib outside and with mobile jib sliding fit, be equipped with fixed clamp splice in the sliding sleeve, fixed clamp splice with through groove sliding fit, fixed clamp splice middle part and the end-to-end connection who pulls the wire, the sliding sleeve side is equipped with Y type branch pipe, be equipped with the electrode end in the Y type branch pipe, the electrode end is connected with the wire electricity of pulling, the sliding sleeve bilateral symmetry is equipped with the handle.
2. An electro-coagulation biopsy forceps as claimed in claim 1, wherein a first sealing sleeve is provided between the front end of the main rod and the front end of the sliding sleeve.
3. A hemostasis auxiliary electrocoagulation biopsy forceps as claimed in claim 2, wherein a first clamping groove is formed at a joint of the main rod and the first sealing sleeve, a second clamping groove is formed at a joint of the sliding sleeve and the first sealing sleeve, and first connecting clamping strips are arranged in the first sealing sleeve corresponding to the first clamping groove and the second clamping groove.
4. A haemostatic assisted electrocoagulation biopsy forceps according to claim 1, wherein a second sealing sleeve is provided between the end of the main shaft and the end of the sliding sleeve.
5. A hemostasis auxiliary electrocoagulation biopsy forceps as claimed in claim 4, wherein a third clamping groove is formed at the joint of the main rod and the second sealing sleeve, a fourth clamping groove is formed at the joint of the sliding sleeve and the second sealing sleeve, and second connecting clamping strips are arranged in the second sealing sleeve corresponding to the third clamping groove and the fourth clamping groove.
6. An auxiliary electrocoagulation biopsy forceps as claimed in claim 1, wherein a connecting column is arranged at the tail end of the main rod, a thumb sleeve ring is rotatably arranged on the connecting column, a bending device is sleeved on the metal sleeve at the rear end of the forceps head and comprises a bending block and a drawing line, the bending block is wedge-shaped, the large end of the bending block is rotatably connected with the large end of the bending block, a bending groove matched with the metal sleeve is formed in the side face of the large end of the bending block, the drawing line passes through the small end of the bending block, a sealing folding sleeve is arranged on the outer side of the bending block, a spiral groove is formed in the surface of the connecting column, the drawing line passes through the main rod and is matched with the spiral groove, and the tail end of the drawing line is connected with the thumb sleeve ring.
7. A haemostatic assisted electrocoagulation biopsy forceps according to claim 1, wherein the handle comprises wing-shaped pieces attached to either side of a sliding sleeve, finger rings provided in the middle of the wing-shaped pieces.
8. A haemostatic assisted electrocoagulation biopsy forceps according to claim 1, wherein an insulating sleeve is sleeved outside the metal sleeve.
CN202122448597.4U 2021-10-11 2021-10-11 Hemostasis auxiliary electrocoagulation biopsy forceps Active CN215994070U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122448597.4U CN215994070U (en) 2021-10-11 2021-10-11 Hemostasis auxiliary electrocoagulation biopsy forceps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122448597.4U CN215994070U (en) 2021-10-11 2021-10-11 Hemostasis auxiliary electrocoagulation biopsy forceps

Publications (1)

Publication Number Publication Date
CN215994070U true CN215994070U (en) 2022-03-11

Family

ID=80521901

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122448597.4U Active CN215994070U (en) 2021-10-11 2021-10-11 Hemostasis auxiliary electrocoagulation biopsy forceps

Country Status (1)

Country Link
CN (1) CN215994070U (en)

Similar Documents

Publication Publication Date Title
Peery et al. Feasibility, safety, acceptability, and yield of office-based, screening transnasal esophagoscopy (with video)
JP5470391B2 (en) Biopsy instrument for concentration of sample material
CN101912290B (en) Multifunctional bendable forceps for laparoscopic surgeries
PRENDIVILLE et al. A low voltage diathermy loop for taking cervical biopsies: a qualitative comparison with punch biopsy forceps
CN113907870A (en) Hemostasis auxiliary electrocoagulation biopsy forceps
US20100198066A1 (en) Method and Device for Obtaining Tissue Samples
CN104055572B (en) A kind of combination electric knife
CN111685956A (en) Oral cavity maxillofacial surgery tumour resection device
CN215994070U (en) Hemostasis auxiliary electrocoagulation biopsy forceps
Fowler et al. Fetal endoscopic surgery: lessons learned and trends reviewed
Gaisford Gastrointestinal polypectomy via the fiberendoscope
CN113425339A (en) Bendable biopsy forceps with hollow forceps channel for real-time biopsy of lung lesion
CN114849021B (en) Visual intubation device and using method thereof
Lancer et al. Flexible fibreoptic rhinolaryngoscopy: results of 338 consecutive examinations
CN102579084B (en) Hot biopsy forceps for duodenum lateral telescope
CN213249431U (en) Special hemostatic forceps for general surgery department
CN209789899U (en) Three-cavity water injection laparoscope sheath
Szopinski et al. Diagnostic accuracy of organ electrodermal diagnostics
CN208065233U (en) A kind of digestive endoscopy Minimally Invasive Surgery doublejointed scalpel
CN207270328U (en) Grasp the laparoscopic instrument of choledochoscope
CN216823631U (en) Multifunctional surgical equipment for digestive endoscopy surgery
CN210204813U (en) Connector for disposable minimally invasive endoscopic cutting anastomat
CN202526298U (en) Hot biopsy forceps for duodenum side-view mirror
CN108433773A (en) A kind of haemostatic clamp convenient for clamping
CN210472117U (en) Medical bronchoscope assists binary channels&#39;s pipe way

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant