CN111514534B - Intracardiac branch of academic or vocational study postoperative rehabilitation and nursing trainer - Google Patents
Intracardiac branch of academic or vocational study postoperative rehabilitation and nursing trainer Download PDFInfo
- Publication number
- CN111514534B CN111514534B CN202010385433.9A CN202010385433A CN111514534B CN 111514534 B CN111514534 B CN 111514534B CN 202010385433 A CN202010385433 A CN 202010385433A CN 111514534 B CN111514534 B CN 111514534B
- Authority
- CN
- China
- Prior art keywords
- arc
- movably connected
- rod
- gear
- plate
- 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.)
- Expired - Fee Related
Links
- 230000000474 nursing effect Effects 0.000 title claims abstract description 14
- 230000001755 vocal effect Effects 0.000 title claims description 6
- 230000002980 postoperative effect Effects 0.000 title abstract description 7
- 230000005291 magnetic effect Effects 0.000 claims abstract description 27
- 239000004744 fabric Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 210000003205 muscle Anatomy 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 5
- 206010003119 arrhythmia Diseases 0.000 description 2
- 230000006793 arrhythmia Effects 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000000418 Premature Cardiac Complexes Diseases 0.000 description 1
- 206010042434 Sudden death Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
- A63B21/05—Linearly-compressed elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
- A61H2201/0138—Support for the device incorporated in furniture
- A61H2201/0142—Beds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/1623—Back
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/08—Trunk
- A61H2205/081—Back
Landscapes
- Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dermatology (AREA)
- Biophysics (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Rehabilitation Therapy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
The invention relates to the technical field of postoperative rehabilitation training of cardiology department, and discloses a postoperative rehabilitation nursing training device of cardiology department, which comprises a bed body, wherein the bottom of the bed body is fixedly connected with a support frame, the surface of the support frame is provided with a slide rail, the surface of the slide rail is slidably connected with a toothed plate, one end of the toothed plate, which is far away from the slide rail, is movably connected with a spring rod, the upper end of the spring rod is movably connected with a binding sleeve, the surface of the toothed plate is movably connected with a gear, the upper surface of the gear is movably connected with an arc plate, the inner part of the arc plate is movably connected with a push rod, one end of the push rod, which is far away from the arc plate, is movably connected with a magnetic rod, the upper end of the magnetic rod is movably connected with a push plate, the surface of the push plate is fixedly connected with a massage block, namely, the moving distance of the legs of a patient is shortened, the consumed energy is reduced, the exercising muscles are reduced, otherwise, the moving distance of the binding sleeve is increased when the heartbeat of the patient is slower, therefore, the effect of applying corresponding training load according to the heart rate condition of the patient during training is achieved.
Description
Technical Field
The invention relates to the technical field of postoperative rehabilitation training of cardiology, in particular to a postoperative rehabilitation nursing training device of cardiology.
Background
The cardiology department, i.e. the cardiovascular department, is a clinical department set by major internal medicine departments of all levels of hospitals for diagnosis and treatment of cardiovascular diseases, and the diseases to be treated comprise angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beat, arrhythmia and the like; patients undergoing cardiology surgery need to be rehabilitated and rehabilitated.
Although current rehabilitation training device kind is more, nevertheless because the operation position of intracardiac branch of academic or vocational study patient is mostly the heart region, and current supplementary rehabilitation training is many to be paid close attention to training patient's limbs, can not apply corresponding motion load according to patient's rhythm of the heart condition, so can appear the phenomenon that excessive motion or the amount of exercise are little can not play the training effect and appear, consequently an intracardiac branch of academic or vocational study postoperative rehabilitation nursing trainer should be transported to and is born.
Disclosure of Invention
In order to realize the purposes of applying corresponding training load according to the heart rate condition of a patient during training and massaging the muscles of the heart-lung area of the patient during training, the invention provides the following technical scheme: the utility model provides a rehabilitation and nursing trainer after intracardiac branch of academic or vocational study, comprises a bed body, the bottom fixedly connected with support frame of the bed body, the slide rail has been seted up on the surface of support frame, and the sliding surface of slide rail is connected with the pinion rack, and the one end swing joint that the slide rail was kept away from to the pinion rack has the spring beam, and the upper end swing joint of spring beam has the constraint cover, the surface swing joint of pinion rack has the gear, and the upper surface swing joint of gear has the arc, and the inside swing joint of arc has the push rod, and the one end swing joint that the arc was kept away from to the push rod has the magnet pole, and the upper end swing joint of magnet pole has the push pedal, and the fixed surface of push pedal is connected with the massage piece.
The invention has the beneficial effects that:
1. through the arc pushed to the direction removal that is close to the gear, the spring beam is compressed its deformation volume and shortens, so the mobilizable distance of constraint cover shortens, the distance that patient's shank moved promptly shortens, the muscle that the energy that consumes diminishes and take exercise becomes less, on the contrary when patient's heartbeat is slower, the mobilizable distance grow of constraint cover, so reach the effect of applying corresponding training load according to patient's the rhythm of the heart condition when training.
2. After being converted into the electric signal by the signal receiver through the heartbeat of the patient, the magnetic rod can be close to the magnetic ring when moving downwards, so that the magnetic ring is influenced by the magnetic rod to rotate, the arc-shaped plate inclines to change the positions of the massage block and the back of the human body, and the effect of massaging and relaxing the back muscle of the patient during training is achieved.
Preferably, the signal receivers are fixedly mounted in the arc-shaped plate and located on two sides of the magnetic rod, the type of the signal receivers is KYTO2905 Kyoto product KYTO collective many-to-one 2.4G wireless heart rate receivers, the signal receivers are assembled in a battery mode, a power supply does not need to be plugged, vibration generated by heartbeat has a certain range, the range of received signals of the signal receivers can be narrowed, and the signal receivers have the function of automatically capturing signal sources.
Preferably, the inside of the gear is movably connected with a limiting ring, the surface of the limiting ring is movably connected with a magnetic ring, and the magnetic ring is set for driving the gear to rotate.
Preferably, the back of the limiting ring is connected with a holding rod in a sliding mode, the width of the holding rod is larger than the diameter of the limiting ring, and the holding rod provides guiding and holding effects for the movement of the gear.
Preferably, the bottom of the arc-shaped plate is fixedly connected with teeth, and the size of the teeth is larger than that of the gear.
Preferably, the arc-shaped plate is positioned at the bottom of the bed body and is coincided with the position of the heart when the adult lies down.
Preferably, the diameter of the arc plate is one third of the length of the bed body.
Preferably, the binding sleeve is of a circular design, and the surface of the binding sleeve is fixedly connected with a flexible cloth.
Drawings
FIG. 1 is a front sectional view of the bed structure of the present invention;
FIG. 2 is a schematic front view of a constraining sheath according to the present invention;
FIG. 3 is a left side view of the structure of the restraining collar of the present invention;
FIG. 4 is a schematic view of an arc plate according to the present invention;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
FIG. 6 is a schematic view of a push rod according to the present invention;
fig. 7 is a partial enlarged view of fig. 6 at B.
In the figure: 1-bed body, 2-support frame, 3-slide rail, 4-toothed plate, 5-spring rod, 6-binding sleeve, 7-gear, 8-arc plate, 9-push rod, 10-magnetic rod, 11-push plate, 12-massage block, 13-signal receiver, 14-limiting ring, 15-magnetic ring, 16-holding rod and 17-tooth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a training device for rehabilitation and nursing after an intracardiac medical department operation comprises a bed body 1, wherein the bottom of the bed body 1 is fixedly connected with a support frame 2, the surface of the support frame 2 is provided with a slide rail 3, the surface of the slide rail 3 is slidably connected with a toothed plate 4, one end of the toothed plate 4 far away from the slide rail 3 is movably connected with a spring rod 5, and the upper end of the spring rod 5 is movably connected with a binding sleeve 6; the binding sleeve 6 is of a circular design, and the surface of the binding sleeve 6 is fixedly connected with flexible cloth.
The surface of the toothed plate 4 is movably connected with a gear 7, the inside of the gear 7 is movably connected with a limiting ring 14, the back of the limiting ring 14 is connected with a holding rod 16 in a sliding manner, the width of the holding rod 16 is larger than the diameter of the limiting ring 14, and the holding rod 16 provides guiding and holding effects for the movement of the gear 7; the surface of the limiting ring 14 is movably connected with a magnetic ring 15, and the magnetic ring 15 is set for driving the gear 7 to rotate.
The upper surface of the gear 7 is movably connected with an arc-shaped plate 8, the bottom of the arc-shaped plate 8 is fixedly connected with teeth 17, and the size of the teeth 17 is larger than that of the gear 7; the arc-shaped plate 8 is positioned at the bottom of the bed body 1 and is superposed with the position of the heart when an adult lies down; the diameter of the arc plate 8 is one third of the length of the bed body 1.
The signal receiver 13 is fixedly installed inside the arc-shaped plate 8 and located on two sides of the magnetic rod 10, the type is KYTO2905 Kangdu manufacturer direct sales product KYTO collective many-to-one 2.4G wireless heart rate receiver, the signal receiver 6 is in an assembled battery type, a power supply does not need to be plugged, vibration generated by heartbeat has a certain range, the signal receiving range of the signal receiver 6 can be narrowed, and the signal receiver 6 has the function of automatically capturing a signal source.
A push rod 9 is movably connected inside the arc-shaped plate 8, one end of the push rod 9, which is far away from the arc-shaped plate 8, is movably connected with a magnetic rod 10, the upper end of the magnetic rod 10 is movably connected with a push plate 11, and the surface of the push plate 11 is fixedly connected with a massage block 12; after the heartbeat of the patient is converted into an electric signal by the signal receiver 13, any wire which is provided with current can generate a magnetic field around the wire, which is called as the magnetic effect of the current; when the magnetic rod 10 moves downwards, the magnetic rod is close to the magnetic ring 15, so the magnetic ring 15 is influenced by the magnetic rod 10 to rotate, the magnetic ring 15 rotates to drive the gear 7 to rotate, the gear 7 rotates to be meshed with the teeth 17 on the surface of the arc-shaped plate 8, so the arc-shaped plate 8 is meshed and connected to be inclined, and the arc-shaped plate 8 is inclined to change the positions of the massage blocks 12 and the back of a human body so as to be contacted with the back of a patient.
When the medical bed is used, the position of the binding sleeve 6 is adjusted according to the height of a patient, the binding sleeve 6 is positioned at the feet of the patient, when the patient lies on the surface of the bed body 1, the heart-lung area of the patient is positioned above the arc-shaped plate 8, the feet of the patient are placed in the binding sleeve 6, the patient can lie on the bed body 1 for leg lifting movement, the heartbeat of the patient is accelerated when the patient moves, the electric signal generated by the accelerated heartbeat is received by the signal receiver 13 and converted into the electric signal, the electric signal is current, the magnetic rod 10 can move in the direction far away from the bed body 1 under the magnetic influence of the magnetic effect of the current, the magnetic rod 10 moves to drive the push rod 9 to move in the direction close to the arc-shaped plate 8, the arc-shaped plate 8 is pushed to move in the direction close to the gear 7 and then is contacted with the gear 7 to push the toothed plate 4 to move downwards, the toothed plate 4 moves downwards to push the spring rod 5 to move downwards, namely the spring rod 5 is compressed to be shortened, the distance that the cuff 6 can move becomes shorter, i.e. the distance that the patient's leg moves becomes shorter, less energy is expended and less muscles are exercised, whereas the distance that the cuff 6 can move becomes greater when the patient's heartbeat is slower.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides a recovered nursing trainer after intracardiac branch of academic or vocational study, includes bed body (1), its characterized in that: the bed is characterized in that a support frame (2) is fixedly connected to the bottom of the bed body (1), a sliding rail (3) is arranged on the surface of the support frame (2), a toothed plate (4) is slidably connected to the surface of the sliding rail (3), one end, far away from the sliding rail (3), of the toothed plate (4) is movably connected with a spring rod (5), and the upper end of the spring rod (5) is movably connected with a binding sleeve (6);
the utility model discloses a tooth plate, including pinion rack (4), gear (7), upper surface swing joint of gear (7) have arc (8), and the inside swing joint of arc (8) has push rod (9), and the one end swing joint that arc (8) were kept away from in push rod (9) has magnet pole (10), and the upper end swing joint of magnet pole (10) has push pedal (11), and the fixed surface of push pedal (11) is connected with massage piece (12), the inside of arc (8) and the both sides fixed mounting that is located magnet pole (10) have signal receiver (13).
2. The training device for rehabilitation nursing after cardiology department operation according to claim 1, wherein: the gear (7) is movably connected with a limiting ring (14) inside, and the surface of the limiting ring (14) is movably connected with a magnetic ring (15).
3. The training device for rehabilitation nursing after cardiology department operation according to claim 2, wherein: the back of the limiting ring (14) is connected with a holding rod (16) in a sliding mode, and the width of the holding rod (16) is larger than the diameter of the limiting ring (14).
4. The training device for rehabilitation nursing after cardiology department operation according to claim 1, wherein: the bottom of the arc-shaped plate (8) is fixedly connected with teeth (17), and the size of the teeth (17) is larger than that of the gear (7).
5. The training device for rehabilitation nursing after cardiology department operation according to claim 1, wherein: the arc-shaped plate (8) is positioned at the bottom of the bed body (1) and is superposed with the position of the heart of an adult when lying down.
6. The training device for rehabilitation nursing after cardiology department operation according to claim 1, wherein: the diameter of the arc-shaped plate (8) is one third of the length of the bed body (1).
7. The training device for rehabilitation nursing after cardiology department operation according to claim 1, wherein: the binding sleeve (6) is in a circular design, and the surface of the binding sleeve (6) is fixedly connected with flexible cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385433.9A CN111514534B (en) | 2020-05-09 | 2020-05-09 | Intracardiac branch of academic or vocational study postoperative rehabilitation and nursing trainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385433.9A CN111514534B (en) | 2020-05-09 | 2020-05-09 | Intracardiac branch of academic or vocational study postoperative rehabilitation and nursing trainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111514534A CN111514534A (en) | 2020-08-11 |
| CN111514534B true CN111514534B (en) | 2021-11-23 |
Family
ID=71905277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010385433.9A Expired - Fee Related CN111514534B (en) | 2020-05-09 | 2020-05-09 | Intracardiac branch of academic or vocational study postoperative rehabilitation and nursing trainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111514534B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113331808B (en) * | 2021-06-09 | 2022-07-12 | 吉林大学 | Intracardiac branch of academic or vocational study intervention postoperative limbs nursing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195195A (en) * | 2002-10-25 | 2004-07-15 | Culture Machine:Kk | Turn-table apparatus and sporting equipment using the same |
| CN107595560A (en) * | 2017-10-29 | 2018-01-19 | 张桂华 | A kind of Cardiological recovery device after operation |
| CN208974493U (en) * | 2018-03-20 | 2019-06-14 | 董艳 | A kind of orthopedic postoperative nursing motion rehabilitation equipment |
-
2020
- 2020-05-09 CN CN202010385433.9A patent/CN111514534B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN111514534A (en) | 2020-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| LORENTSEN | Systemic arterial blood pressure during exercise in patients with atherosclerosis obliterans of the lower limbs | |
| CN109603105A (en) | A kind of Neurology clinic adjustable type limb rehabilitation device | |
| CN111514534B (en) | Intracardiac branch of academic or vocational study postoperative rehabilitation and nursing trainer | |
| CN106309080A (en) | Rehabilitation nursing apparatus | |
| CN108579005B (en) | Coronary heart disease patient rehabilitation device | |
| CN207590930U (en) | A kind of rehabilitation treatment bed for being suitable for the elderly | |
| CN213220770U (en) | Patient's rehabilitation training device postpartum | |
| CN103908393A (en) | Training apparatus for restoring leg movement ability | |
| CN206151796U (en) | Intelligence low limbs rehabilitation training device | |
| CN209900608U (en) | Pacemaker postoperative patient rehabilitation training assistor | |
| CN212651002U (en) | Cardiovascular internal medicine rehabilitation and health care nursing device | |
| CN208465083U (en) | A kind of lower limb exercise recovery device | |
| CN208823343U (en) | A kind of Neurology lower limb nursing training device | |
| CN209475099U (en) | A kind of Neurology leg device for healing and training | |
| CN111420356B (en) | Nursing device for rehabilitation after cardiology department operation | |
| CN112473080A (en) | Multifunctional lower limb rehabilitation training bed | |
| CN215132719U (en) | Limb exercising device for child health care | |
| CN215691418U (en) | Device is tempered in nursing of heart bypass postoperative | |
| CN215274115U (en) | Nursing bed for rehabilitation | |
| CN216909021U (en) | Orthopedic nursing lower limb exercise device | |
| CN214714108U (en) | Rehabilitation device for cardiology department nursing | |
| CN214633774U (en) | Thoracic surgery rehabilitation and nursing training device | |
| CN214763131U (en) | Recovered device of taking exercise of child's nursing shank | |
| CN213822360U (en) | Medical orthopedics knee joint rehabilitation and nursing equipment | |
| CN218686078U (en) | Movable device for rehabilitation nursing of general surgery department |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |