CN115607224A - Medical surgical hemostasis auxiliary device - Google Patents
Medical surgical hemostasis auxiliary device Download PDFInfo
- Publication number
- CN115607224A CN115607224A CN202211194064.0A CN202211194064A CN115607224A CN 115607224 A CN115607224 A CN 115607224A CN 202211194064 A CN202211194064 A CN 202211194064A CN 115607224 A CN115607224 A CN 115607224A
- Authority
- CN
- China
- Prior art keywords
- tube
- bandage
- universal
- wedge
- patient
- 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.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/132—Tourniquets
- A61B17/135—Tourniquets inflatable
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the technical field of medical equipment, in particular to a medical surgical hemostasis auxiliary device, which pressurizes and stanchs the leg of a patient through a bandage, the bandage is always tightened to be tightly attached to the leg of the patient under the action of a low-pressure area initially, a sliding block is pulled to move at the highest speed by a motor when the wound of the patient bleeds, so that the bandage is contracted to perform secondary pressurization hemostasis, the sliding block moves for a certain distance and then impacts on a partition box, a medicament in the partition box is impacted to release a large amount of gas, cold compress water in a straight pipe is squeezed by the gas to enter a bent pipe and permeate into the bandage to cool the wound area of the leg of the patient, the blood flowing speed in the area is reduced, bleeding is slowed down, the bent pipe is slightly expanded after the gas is fully filled in the pipe, the pressure of the leg of the patient is increased, the contact area of the bandage and the leg of the patient is wide, and secondary injury caused by stress concentration is avoided.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a medical surgical hemostasis auxiliary device.
Background
In the field of medical surgery, when hemostasis is carried out on limbs of a patient, the bandage is usually used for pressing and bandaging, blood circulation is reduced, and the bleeding part of the patient is intensively compressed, so that the aim of quickly stopping bleeding is fulfilled.
In the application number: 201610730627.1, which discloses a convenient and easy-to-use tourniquet, comprising a strap and a hemostasis plate; the hemostatic plate is arranged on the lower surface of the bandage, and the upper surface of the bandage is provided with an elastic cavity in parallel; magic tapes are respectively fixed at two ends of the bandage; filling a chemical reagent in the elastic cavity, wherein the chemical reagent can be sodium azide; a one-way air inlet valve and an exhaust valve are arranged on the side wall of the elastic cavity; paste through the magic and connect the bandage winding fast, then release gaseous atmospheric pressure through chemical reagent for the hemostasis by compression, but this kind of mode often has the pressurization untimely, or inhomogeneous, makes the blood seepage, only leans on the hemostasis by compression moreover, and the effect is not good, and connects with the magic subsides, and after the release gas, the bandage inflation is struggled open easily.
In the application number: 202011447500.1, a cold compress pressing component and a hemostasis device using the same are disclosed, the pressing component is pressed to puncture a puncture part through a storage grid, so that chemical agents in the storage grid leak and contact with other chemicals to react to absorb heat, and the cold compress effect is achieved to slow down bleeding.
The invention provides a medical surgical hemostasis auxiliary device which effectively solves the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a medical surgical hemostasis auxiliary device, which solves the background technical problem.
The specific technical scheme is as follows:
the utility model provides a medical surgery auxiliary device that stanchs, its characterized in that, including universal pipe and universal pipe both ends all indeformable, universal pipe one end fixedly connected with bandage, the other end fixedly connected with and the slider of universal pipe one end sliding connection of bandage, the other end that the slider deviates from bandage one side fixedly connected with stay cord and stay cord is connected with the first sheave of rotation installation in universal pipe, first sheave is driven by micro motor, it passes and cuts apart the box to be equipped with between first sheave and the slider to cut apart box and stay cord, be equipped with infiltration pipe and infiltration pipe in the bandage and cut apart the box intercommunication, placed sodium azide and ammonium nitrate in cutting apart the box.
Preferably, the permeation tube is divided into a bent tube and a straight tube, a check valve is arranged at the communication part of the straight tube and the bent tube, cold compress water is filled in the straight tube, and permeation holes are formed in the tube wall of the bent tube.
Preferably, the pipe wall of the straight pipe is wrapped with a heat-insulating waterproof layer.
Preferably, the strap is made of an air-permeable, water-permeable material.
Preferably, universal pipe one end is equipped with the sliding tray and the sliding tray slidable mounting who communicates with the external world has the slide, the slide forms the low-pressure area with the sliding tray bottom, the slide is towards sliding tray opening one end and bandage fixed connection.
Preferably, it installs the wind spring to rotate on the slide between second sheave and the slide, bandage one end is equipped with the wedge with second sheave fixed connection, the other end, be equipped with the through-hole of recess and straight tube intercommunication on the wedge, be equipped with in the slider with wedge complex wedge chamber, there are wedge knot and groove fit along perpendicular to universal pipe wall direction slidable mounting on the universal pipe, the wedge is detained and is connected with the spring between the pipe wall of universal pipe, the wedge is detained and is stretched out universal pipe one end fixedly connected with L venturi tube and cut apart the box intercommunication, the L venturi tube is the hose with cut apart box intercommunication portion, another part and the universal pipe slidable connection of L venturi tube and with the through-hole adaptation.
Preferably, the tube wall of the universal tube is fixedly provided with an elastic pad, and a plurality of suckers are uniformly arranged on the elastic pad.
Preferably, the curved tube has a certain elasticity.
The invention has the beneficial effects that: the invention comprises a universal tube, the patient blooding part is completely tightly attached to the hemostatic transfer account for one week by screwing the universal tube, one end of the universal tube is provided with a sliding groove, a sliding plate is arranged in the sliding groove in a sliding way, the sliding plate is sealed with the bottom wall of the sliding groove, the air pressure in the cavity is lower than the atmospheric pressure, the sliding plate is rotatably provided with a rotating shaft, the rotating shaft is provided with a bandage, the primary pressurization hemostasis is carried out on the leg of the patient through the bandage, the bandage is always tightened to be tightly attached to the leg of the patient no matter how the patient moves under the action of a low-pressure area, the stable pressurization of the bandage is kept, namely the primary pressurization is carried out, the wound of the patient is placed to bleed, and when the wound of the patient bleeds, the sliding block is pulled to move at the highest speed through a motor, and make the bandage shrink fast, carry out secondary pressurization hemostasis, and pressure is applyed in whole bandage, the pressurized is even, can not cause the secondary injury to patient's wound, and the slider removes the striking after the determining deviation on cutting apart the box, cut apart the inside medicament of box and receive the striking and release a large amount of gas, the intraductal cold compress water entering bending tube of gas extrusion straight, and the infiltration bandage, cool down patient's shank wound region, reduce the blood velocity of flow in this region, slow down bleeding, slow down patient's pain simultaneously, and after the complete seepage of cold compress water, gaseous full pipe back of having filled, the light inflation of bending tube, further increase patient's shank pressure, realize the cubic pressurization hemostasis step by step, hemostatic effect is better.
The invention uses the universal pipe as the integral installation foundation, the deformation function of the universal pipe ensures that the whole device is tightly attached to the skin of the leg of the patient, and the whole device is firmly fixed by the sucker without falling off, thereby being convenient to use.
Drawings
FIG. 1 is a schematic assembly elevation view of the present invention.
Figure 2 is a schematic cross-sectional view in elevation of the present invention in use.
Fig. 3 is a partial schematic view of the invention at a in fig. 2.
Fig. 4 is a schematic cross-sectional view of the strap of the present invention from above.
Fig. 5 is a schematic cross-sectional view of a wedge block of the present invention.
Fig. 6 is a partial schematic view of the invention at B in fig. 2.
Fig. 7 is a perspective view of the partitioning box of the present invention.
In the figure, a gimbal pipe 1; an elastic pad 2; a suction cup 3; a binding band 4; a slide groove 5; a slide plate 6; a second sheave 7; a bent tube 8; a straight tube 9; a wedge block 10; a groove 11; a through hole 12; a first sheave 13; a pull cord 14; a slider 15; a wedge buckle 16; an L-shaped pipe 17; the box 18 is divided.
Detailed Description
The foregoing and other aspects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the accompanying drawings, which is set forth in part in the accompanying drawings of fig. 1-7. The following examples are given to illustrate the structures and to be referred to in the drawings.
The following provides a more detailed description of embodiments of the present invention, with reference to the accompanying drawings.
In order to solve the problems in the prior art, the embodiment provides a medical surgical hemostasis auxiliary device, which comprises a universal tube 1, wherein the universal tube 1 can be twisted at will and kept stable to be attached to an injured part, an elastic pad 2 is fixedly arranged on the universal tube 1 to avoid secondary injury caused by clamping a human body, a plurality of suckers 3 are uniformly arranged on the elastic pad 2 to ensure that the universal tube 1 is adsorbed on a leg part to facilitate the fixation of the device, both ends of the universal tube 1 are not deformable, a sliding groove 5 communicated with the outside is arranged at one end of the universal tube 1, a sliding plate 6 is slidably arranged in the sliding groove 5, a low-pressure area is formed between the sliding plate 6 and the bottom of the sliding groove 5, so that the sliding plate 6 always receives an air pressure and tends to move towards the bottom of the sliding groove 5, a second grooved pulley 7 is rotatably installed on the other side of the sliding plate 6, a coil spring is arranged between a rotating shaft of the second grooved pulley 7 and the sliding plate 6, a binding belt 4 is fixedly connected onto the second grooved pulley 7, a wedge block 10 is fixedly installed at the other end of the binding belt 4, a permeation tube is arranged in the binding belt 4 and comprises a bent tube 8 and a straight tube 9, a permeation hole is formed in the tube wall of the bent tube 8, cold compress water is filled in the straight tube 9, the cold compress water is low-temperature liquid, a one-way valve is arranged at the communication part of the straight tube 9 and the bent tube 8, leakage of the cold compress water when the cold compress water is not pressed or is slightly pressed is avoided, a heat-insulating and waterproof material is further wrapped on the tube wall of the straight tube 9, the temperature and the state of the cold compress water are prevented from being influenced by the external environment, and a through hole 12 communicated with the straight tube 9 is formed in the wedge block 10;
a first grooved pulley 13 is rotatably installed inside the other end of the universal pipe 1, the first grooved pulley 13 is fixedly connected with a rotating shaft of the micro motor, a pull rope 14 is fixedly connected onto the first grooved pulley 13, a slider 15 is fixedly connected onto the other end of the pull rope 14, the slider 15 is slidably connected with the universal pipe 1, a partition box 18 is arranged on the universal pipe 1 and is positioned between the slider 15 and the first grooved pulley 13 and close to the first grooved pulley 13, a round hole is formed in the partition box 18, the pull rope 14 penetrates through the round hole and is connected with the slider 15, a mixture of sodium azide and ammonium nitrate is placed in the partition box 18, a wedge buckle 16 is slidably installed on the pipe wall of the universal pipe 1 in a direction perpendicular to the universal pipe 1, a spring is fixedly connected onto the upper end of a position, extending into the universal pipe 1, of the spring, the other end of the spring is fixedly connected with the inner wall of the universal pipe 1, a groove 11 matched with the wedge buckle 16 is formed in the slider 15, one end, an L-shaped pipe 17 is fixedly connected onto one end, a horizontal position, extending out of the wedge buckle 16 is communicated with the partition box 18, a hose is a horizontal position of the L-shaped pipe 17, a vertical position of the L-shaped pipe 17 is fixedly connected with the horizontal position of the L-shaped pipe 1, and is matched with a through hole 12 of the through hole of the L-shaped pipe 1.
In this embodiment, micro motor has the auto-lock nature, selects for use button cell to provide the power for micro motor, and micro motor electric connection has the controller, can control micro motor fast rotation through the controller.
The specific use process of the embodiment is as follows:
place the back that lies in the wound on patient's shank universal pipe 1, and hold between the fingers into the shape with the laminating with universal pipe 1, adsorb universal pipe 1 at patient's shank through sucking disc 3, rock or become flexible when avoiding universal pipe 1 to use, then insert wedge 10 behind bandage 4 then patient's shank wedge chamber, 16 insert recess 11 are detained to the wedge, it is fixed with wedge 10, and L venturi tube 17 communicates with through-hole 12 simultaneously, universal pipe 1 this moment, bandage 4 forms a closed loop that tightens, oppress patient's shank, preliminarily stanch.
When the legs of the patient move to enable muscles in the wound area to be tightened and enable the bandage 4 to be tightened, the bandage 4 drives the sliding plate 6 to slide in the sliding groove 5 at a small distance, the bandage is prevented from being dead and tightening the legs of the patient, and the wound is enabled to be secondarily injured.
When the leg wound of the patient bleeds greatly and the initial pressure of the bandage 4 is not enough to stop bleeding, the micro motor is started through the controller to drive the first sheave 13 to rotate for a certain angle quickly, so that the slider 15 is driven to slide quickly in the universal tube 1, the bandage is tightened to stop bleeding under pressure, the setting range of the bandage 4 is large, secondary damage to the wound of the patient due to stress concentration is avoided, in the rotating process of the first sheave 13, the slider 15 finally impacts the partition box 18 under a high-speed condition, meanwhile, the micro motor stops rotating, sodium azide in the partition box 18 is impacted, nitrogen and sodium are quickly decomposed to release, sodium reacts with ammonium nitrate, a large amount of gas is generated again, all the gas enters the straight tube 9 after passing through the L-shaped tube 17, then cold compress water in the straight tube 9 enters the bent tube 8, the cold compress water enters the bent tube 8 and then gradually seeps into the bent tube 4 from a permeation hole, the cold compress water contacts with the leg skin of the patient, muscle of the patient is stimulated to contract, blood flow is slowed down, further, the pain of the patient is relieved, the bent tube 8 is relieved, the leg pain of the patient is relieved, the cold compress water gradually, the initial pressure of the bent tube 8 is increased, and the bandage 4 is further increased, and the expansion pressure of the bandage 4 is increased, and the wound is further, and the wound of the wound is increased.
The device is a disposable consumable and can not be reused.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a medical surgery hemostasis auxiliary device, its characterized in that, including universal pipe and universal pipe both ends all indeformable, universal pipe one end fixedly connected with bandage, the other end fixedly connected with and the slider of universal pipe one end sliding connection of bandage, the other end that the slider deviates from bandage one side fixedly connected with stay cord and stay cord is connected with the first sheave of rotation installation in the universal pipe, first sheave is driven by micro motor, it passes and cuts apart the box to be equipped with between first sheave and the slider to cut apart box and stay cord, be equipped with infiltration pipe and infiltration pipe in the bandage and cut apart the box intercommunication, placed sodium azide and ammonium nitrate in cutting apart the box.
2. A medical surgical hemostasis auxiliary device as claimed in claim 1, wherein the penetration tube is divided into a curved tube and a straight tube, a one-way valve is arranged at the connection part of the straight tube and the curved tube, the straight tube is filled with cold compress water, and the wall of the curved tube is provided with penetration holes.
3. A medical surgical hemostatic auxiliary device according to claim 2, wherein the wall of the straight tube is wrapped with a heat insulating and waterproof layer.
4. A medical surgical hemostasis aid as claimed in claim 3, wherein the strap is formed from a breathable, water permeable material.
5. A medical surgical hemostasis aid device as claimed in claim 2, wherein the universal tube has a sliding groove at one end communicating with the outside and a sliding plate is slidably mounted in the sliding groove, the sliding plate forms a low pressure area with the bottom of the sliding groove, and the end of the sliding plate facing the opening of the sliding groove is fixedly connected with the bandage.
6. The medical surgical hemostasis auxiliary device of claim 5, wherein a second sheave is rotatably mounted on the sliding plate, a coil spring is arranged between the second sheave and the sliding plate, one end of the binding band is fixedly connected with the second sheave, the other end of the binding band is provided with a wedge-shaped block, the wedge-shaped block is provided with a through hole communicated with a groove and a straight tube, a wedge-shaped cavity matched with the wedge-shaped block is arranged in the sliding block, a wedge-shaped buckle and a wedge-shaped buckle matched with the groove are slidably mounted on the universal tube in a direction perpendicular to the wall direction of the universal tube, a spring is connected between the wedge-shaped buckle and the wall of the universal tube, one end of the wedge-shaped buckle, extending out of the universal tube, is fixedly connected with an L-shaped tube, is communicated with the splitting box, is a hose communicated with the splitting box, and the other part of the L-shaped tube is slidably connected with the universal tube and is matched with the through hole.
7. A medical surgical hemostasis auxiliary device as claimed in claim 1, wherein an elastic pad is fixedly mounted on the wall of the universal tube and a plurality of suckers are uniformly arranged on the elastic pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194064.0A CN115607224B (en) | 2022-09-28 | 2022-09-28 | Medical surgical hemostasis auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194064.0A CN115607224B (en) | 2022-09-28 | 2022-09-28 | Medical surgical hemostasis auxiliary device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115607224A true CN115607224A (en) | 2023-01-17 |
| CN115607224B CN115607224B (en) | 2023-10-03 |
Family
ID=84861514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211194064.0A Active CN115607224B (en) | 2022-09-28 | 2022-09-28 | Medical surgical hemostasis auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115607224B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202459557U (en) * | 2011-12-27 | 2012-10-03 | 王志萍 | Fixing and pressing device for artery and vein puncture |
| CN204233179U (en) * | 2014-11-24 | 2015-04-01 | 陈赟 | The disposable tourniquet of department of general surgery |
| CN105361920A (en) * | 2015-08-18 | 2016-03-02 | 兴山县人民医院 | Tourniquet |
| CN106264649A (en) * | 2016-08-26 | 2017-01-04 | 蒋志斌 | Convenient easy-to-use tourniquet |
| CN106806006A (en) * | 2016-09-30 | 2017-06-09 | 于仁亮 | Cardiological surgical hemostasis device |
| CN110251189A (en) * | 2019-07-15 | 2019-09-20 | 江苏沥泽生化科技有限公司 | A kind of adaptive quick tourniquet bandage and its working method |
| CN110859653A (en) * | 2019-12-11 | 2020-03-06 | 韩同众 | Clinical quick hemostasis device of using of emergency department |
| CN113412986A (en) * | 2021-07-03 | 2021-09-21 | 濉溪县瑞发科技有限公司 | Emergent hemostatic helmet of motorcycle based on internet of things |
| CN214906994U (en) * | 2021-02-19 | 2021-11-30 | 刘光美 | Blood drawing assistor for blood patient |
| CN215606046U (en) * | 2021-05-31 | 2022-01-25 | 德阳市人民医院 | Brachial artery pressing device for cardiovascular internal medicine treatment |
-
2022
- 2022-09-28 CN CN202211194064.0A patent/CN115607224B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202459557U (en) * | 2011-12-27 | 2012-10-03 | 王志萍 | Fixing and pressing device for artery and vein puncture |
| CN204233179U (en) * | 2014-11-24 | 2015-04-01 | 陈赟 | The disposable tourniquet of department of general surgery |
| CN105361920A (en) * | 2015-08-18 | 2016-03-02 | 兴山县人民医院 | Tourniquet |
| CN106264649A (en) * | 2016-08-26 | 2017-01-04 | 蒋志斌 | Convenient easy-to-use tourniquet |
| CN106806006A (en) * | 2016-09-30 | 2017-06-09 | 于仁亮 | Cardiological surgical hemostasis device |
| CN110251189A (en) * | 2019-07-15 | 2019-09-20 | 江苏沥泽生化科技有限公司 | A kind of adaptive quick tourniquet bandage and its working method |
| CN110859653A (en) * | 2019-12-11 | 2020-03-06 | 韩同众 | Clinical quick hemostasis device of using of emergency department |
| CN214906994U (en) * | 2021-02-19 | 2021-11-30 | 刘光美 | Blood drawing assistor for blood patient |
| CN215606046U (en) * | 2021-05-31 | 2022-01-25 | 德阳市人民医院 | Brachial artery pressing device for cardiovascular internal medicine treatment |
| CN113412986A (en) * | 2021-07-03 | 2021-09-21 | 濉溪县瑞发科技有限公司 | Emergent hemostatic helmet of motorcycle based on internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115607224B (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201524112U (en) | Multifunctional double-air sac tourniquet | |
| CN115607224A (en) | Medical surgical hemostasis auxiliary device | |
| CN213249459U (en) | Medical tourniquet | |
| CN201782793U (en) | Inflatable safety tourniquet | |
| CN213910397U (en) | Inflatable artery hemostasis bandage | |
| CN215129505U (en) | Buckling type non-latex tourniquet | |
| CN213190470U (en) | Jugular vein catheter fixing cold compress device | |
| CN211022915U (en) | Automatic inflatable tourniquet | |
| CN217723611U (en) | Local compression type arteriovenous tourniquet | |
| CN208926500U (en) | A kind of angiosthenia blood haemostat | |
| CN211325347U (en) | Pain-relieving inflatable tourniquet | |
| CN220236960U (en) | Arterial pressurizing device | |
| CN200939158Y (en) | Convinent tourniquet | |
| CN221786439U (en) | Hemostatic clip plate | |
| CN221949879U (en) | Arteriovenous internal flaccidity physiotherapy belt | |
| CN214549517U (en) | Wound nursing tourniquet | |
| CN219629715U (en) | Tourniquet for puncture | |
| CN221750643U (en) | Radial artery compressor after cardiovascular intervention operation | |
| CN221431142U (en) | Automatic timing radial artery compression hemostat | |
| CN221129966U (en) | Cooling, pressurizing and hemostatic device after thyroid operation | |
| CN221331330U (en) | Hemostatic device | |
| CN220442706U (en) | Puncture intervention operation compression device | |
| CN211433146U (en) | Clamping type tourniquet | |
| CN219501101U (en) | Compression hemostasis device after kidney biopsy puncture operation | |
| CN118662292A (en) | Cold therapy external application material unit and burn wound surface anti-slip fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |