CN210301118U - Intrauterine hemostat for obstetrics and gynecology department - Google Patents
Intrauterine hemostat for obstetrics and gynecology department Download PDFInfo
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- CN210301118U CN210301118U CN201920814285.0U CN201920814285U CN210301118U CN 210301118 U CN210301118 U CN 210301118U CN 201920814285 U CN201920814285 U CN 201920814285U CN 210301118 U CN210301118 U CN 210301118U
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- liquid storage
- fixed
- fixing
- tube
- vent pipe
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- 239000002874 hemostatic agent Substances 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 239000003814 drug Substances 0.000 claims abstract description 43
- 230000002439 hemostatic effect Effects 0.000 claims abstract description 35
- 230000023597 hemostasis Effects 0.000 claims abstract description 23
- 238000001802 infusion Methods 0.000 claims description 9
- 230000010412 perfusion Effects 0.000 claims 5
- 238000009423 ventilation Methods 0.000 claims 3
- 229940079593 drug Drugs 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 210000004291 uterus Anatomy 0.000 description 31
- 238000012546 transfer Methods 0.000 description 15
- 208000032843 Hemorrhage Diseases 0.000 description 9
- 230000000740 bleeding effect Effects 0.000 description 9
- 210000003128 head Anatomy 0.000 description 7
- 239000011550 stock solution Substances 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 208000018525 Postpartum Hemorrhage Diseases 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 210000005077 saccule Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000027758 ovulation cycle Effects 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000013404 process transfer Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000002460 smooth muscle Anatomy 0.000 description 1
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Abstract
The utility model provides a hemostat in uterine cavity of obstetrics and gynecology department. Gynaecology and obstetrics palace intracavity haemostat includes: the hemostatic bag comprises a liquid storage structure, a hemostatic structure, an inflatable structure and a pushing structure, wherein the liquid storage structure comprises a liquid storage cylinder; the hemostatic structure is connected to the liquid storage structure; the inflation structure is connected to the liquid storage structure; the pushing structure is connected with the liquid storage structure, the pushing structure comprises a vent pipe, a medicine inlet, a fixing block, a spring and a limiting block, the vent pipe is fixed on the liquid storage cylinder, the vent pipe extends to the inside of the liquid storage cylinder, the bottom end inside the liquid storage cylinder is provided with the medicine inlet, the medicine inlet is communicated with the inside of the liquid storage cylinder and the vent pipe, the fixing block is slidably connected with the vent pipe, and the limiting block is fixed on the inside of the vent pipe. The utility model provides a gynaecology and obstetrics's palace intracavity haemostat is convenient for compress hemostasis, the process of performing the operation with higher speed when pouring into hemostatic medicine into.
Description
Technical Field
The utility model relates to a palace chamber technical field especially relates to a gynaecology and obstetrics's palace intracavity haemostat.
Background
The uterine cavity is the space of the uterus, also called uterus, the uterus is a single muscular organ, mainly consists of smooth muscle, the wall thickness cavity is small, the expansibility is rich, the shape, the size, the position and the structure of the uterus are different with different ages and are changed under the influence of the menstrual cycle and the pregnancy, and the postpartum hemorrhage of the uterine cavity of a gynecological patient is generally realized by utilizing the compression hemostasis of a uterine cavity saccule and the medicine hemostasis.
The existing uterine cavity postpartum hemorrhage is that a uterine cavity saccule is inflated to compress a uterine wall to stop bleeding, and then hemostatic is injected into the uterus to further stop bleeding, so that the uterus hemostasis time is prolonged, and the uterus operation is influenced.
Therefore, there is a need to provide a new intrauterine hemostat for obstetrics and gynecology department to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a process's of gynaecology and obstetrics palace intracavity haemostat of oppression hemostasis, operation with higher speed when being convenient for pour into the hemostatic medicine into.
In order to solve the technical problem, the utility model provides a gynaecology and obstetrics's palace intracavity haemostat includes: the hemostatic bag comprises a liquid storage structure, a hemostatic structure, an inflatable structure and a pushing structure, wherein the liquid storage structure comprises a liquid storage cylinder; the hemostatic structure is connected to the liquid storage structure; the inflation structure is connected to the liquid storage structure; the utility model discloses a liquid storage structure, including the breather pipe, advance medicine mouth, fixed block, spring and stopper, promote structural connection in the liquid storage structure, promote the structure include the breather pipe, advance medicine mouth, fixed block, spring and stopper, the breather pipe is fixed in the liquid storage section of thick bamboo, the breather pipe extends to inside the liquid storage section of thick bamboo, the inside bottom of liquid storage section of thick bamboo is seted up advance the medicine mouth, advance the medicine mouth communicate in the liquid storage section of thick bamboo with inside the breather pipe, fixed block sliding connection in the breather pipe, the stopper is fixed in inside the breather pipe, the.
Preferably, the liquid storage structure still includes rubber buffer, dead lever and transfer line, the liquid storage cylinder is fixed in the dead lever top, the inside hollow structure that is of dead lever, rubber buffer threaded connection in the liquid storage cylinder, the transfer line is fixed in the liquid storage cylinder, the transfer line communicate in it is inside to advance the medicine mouth, the transfer line is located inside the dead lever, transfer line one side is fixed in the breather pipe.
Preferably, hemostasis structure includes guide head, palace chamber sacculus body, fixing base and goes out the liquid hole, the fixing base is fixed in dead lever one side, the inside hollow structure that is of fixing base, four are seted up to the fixing base symmetry go out the liquid hole, four go out the liquid hole all communicate in inside the fixing base, the transfer line communicate in inside the fixing base, palace chamber sacculus body is fixed in fixing base one side, the guide head is fixed in palace chamber sacculus body one side.
Preferably, the inflatable structure includes an inflatable airbag, a handle and an air inlet pipe, the inflatable airbag is fixed on one side of the fixing rod, the air outlet pipe is communicated with the interior of the inflatable airbag, the air inlet pipe is fixed on the inflatable airbag, the air inlet pipe is communicated with the interior of the inflatable airbag, the air inlet pipe is located inside the fixing rod and the fixing seat, the air inlet pipe is communicated with the interior of the uterine cavity balloon body, and the handle is fixed on one side of the fixing rod, away from the inflatable airbag.
Preferably, the cross section of the medicine inlet is of a trapezoid structure, and the width of the top end of the medicine inlet is larger than that of the bottom end of the medicine inlet.
Preferably, the cross section of the fixed block is of an L-shaped structure, the length of the top end of the fixed block is larger than that of the bottom end of the fixed block, and the fixed block and the vent pipe are sealed.
Preferably, the number of the limiting blocks is two, the two limiting blocks are symmetrically fixed inside the vent pipe, and the length of the two limiting blocks is smaller than the radius of the vent pipe.
Compared with the prior art, the utility model provides a gynaecology and obstetrics palace intracavity haemostat has following beneficial effect:
the utility model provides a gynaecology and obstetrics's palace intracavity haemostat, it is right to aerify the gasbag with gaseous filling when palace chamber sacculus body is aerifyd inside the breather pipe, the fixed block with the breather pipe with aerify the gasbag and form seal chamber, make gaseous promotion the fixed block to the gas-supply pipe direction slides, makes the tensile production elasticity of spring makes the fixed block will advance the medicine mouth the inside hemostatic medicine of infusion pipe is faster to be pushed into inside back of fixing base, makes hemostatic medicine pass through four the liquid outlet hole gets into the inside further hemostasis of patient uterus, and hand power moves the handle makes it resets to aerify the gasbag, the fixed block passes through the spring resets, the inside hemostatic medicine of liquid storage cylinder is followed advance the medicine mouth and continue to get into inside the infusion pipe, extrude again aerify the gasbag and make when palace chamber sacculus body is aerifyd and oppresses uterus hemostasis the fixed block with hemostatic medicine from the liquid outlet hole is pushed into the inside hemostasis Blood makes the hemostatic injection of uterus hemostasis when palace chamber sacculus body oppression patient uterus hemostasis, has reduced the operating time that uterus hemostasis needs, is convenient for carry out the operation of patient uterus fast.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the intrauterine hemostat of the obstetrics and gynecology department provided by the present invention;
FIG. 2 is a schematic cross-sectional view of the structure shown in FIG. 1;
FIG. 3 is an enlarged view of the part A shown in FIG. 2;
fig. 4 is an enlarged schematic view of a portion B shown in fig. 2.
Reference numbers in the figures: 1. hemostasis structure, 11, guide head, 12, palace chamber sacculus body, 13, fixing base, 14, play liquid hole, 2, stock solution structure, 21, rubber buffer, 22, stock solution section of thick bamboo, 23, dead lever, 24, transfer line, 3, promotion structure, 31, breather pipe, 32, advance medicine mouth, 33, fixed block, 34, spring, 35, stopper, 4, gas filled structure, 41, gas filled bag, 42, handle, 43, intake pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the intrauterine hemostat for obstetrics and gynecology department of the present invention; FIG. 2 is a schematic cross-sectional view of the structure shown in FIG. 1; FIG. 3 is an enlarged view of the part A shown in FIG. 2; fig. 4 is an enlarged schematic view of a portion B shown in fig. 2. Gynaecology and obstetrics's palace intracavity haemostat includes: stock solution structure 2, hemostasis structure 1, gas filled structure 4 and promotion structure 3, gas filled structure 4 is fixed in stock solution structure 2, hemostasis structure 1 is fixed in stock solution structure 2, it is fixed in to promote structure 3 stock solution structure 2, gas filled structure 4 communicate in hemostasis structure 1.
In the specific implementation process, as shown in fig. 2 and 3, the pushing structure 3 is connected to the liquid storage structure 2, the pushing structure 3 includes a vent pipe 31, a medicine inlet 32, a fixing block 33, a spring 34 and a limiting block 35, the vent pipe 31 is fixed to the liquid storage cylinder 22, the vent pipe 31 extends to the inside of the liquid storage cylinder 22, the medicine inlet 32 is formed at the bottom end of the inside of the liquid storage cylinder 22, the medicine inlet 32 is communicated with the inside of the liquid storage cylinder 22 and the vent pipe 31, the fixing block 33 is slidably connected to the vent pipe 31, the limiting block 35 is fixed to the inside of the vent pipe 31, the spring 34 is fixed to the fixing block 33 and between the limiting blocks 35, and the spring 34 is located inside the vent pipe 31.
Referring to fig. 1, fig. 2 and fig. 4, stock solution structure 2 still includes rubber buffer 21, dead lever 23 and transfer line 24, liquid storage cylinder 22 is fixed in 23 top ends of dead lever, the inside hollow structure that is of dead lever 23, rubber buffer 21 threaded connection in liquid storage cylinder 22, transfer line 24 is fixed in liquid storage cylinder 22, transfer line 24 communicate in it is inside to advance medicine mouth 32, transfer line 24 locates inside dead lever 23, transfer line 24 one side is fixed in breather pipe 31, in order to take off rubber buffer 21, pour into hemostatic into inside the liquid storage cylinder 22, make hemostatic process transfer line 24 flows in inside fixing base 13.
Referring to fig. 1, 2 and 4, the hemostasis structure 1 includes a guide head 11, a uterine cavity balloon body 12, a fixing seat 13 and liquid outlet holes 14, the fixing seat 13 is fixed on one side of the fixing rod 23, the inside of the fixing seat 13 is a hollow structure, the fixing seat 13 is symmetrically provided with four liquid outlet holes 14, the four liquid outlet holes 14 are all communicated with the inside of the fixing seat 13, the infusion tube 24 is communicated with the inside of the fixing seat 13, the uterine cavity balloon body 12 is fixed on one side of the fixing seat 13, the guide head 11 is fixed on one side of the uterine cavity balloon body 12, the guide head 11 is convenient for inserting the uninflated uterine cavity balloon body 12 into the uterus of a patient, gas is input into the uterine cavity balloon body 12 from the air inlet tube 43 through the inflatable air bag 41, so that the uterine cavity balloon body 12 expands and presses the uterine wall, hemostasis is performed to the uterus by compression.
Referring to fig. 1, 2 and 4, the inflatable structure 4 includes an inflatable bladder 41, a handle 42 and an inlet tube 43, the inflatable air bag 41 is fixed at one side of the fixing rod 23, the vent pipe 31 is communicated with the inside of the inflatable air bag 41, the air inlet pipe 43 is fixed to the inflatable air bag 41, the air inlet pipe 43 is communicated with the interior of the inflatable air bag 41, the air inlet pipe 43 is positioned inside the fixing rod 23 and the fixing seat 13, the air inlet pipe 43 is communicated with the interior of the uterine cavity balloon body 12, the handle 42 is fixed to the side of the inflatable airbag 41, which faces away from the fixing lever 23, and, in order to press the inflatable airbag 41, and inflating the uterine cavity balloon body 12, so that gas enters the ventilating tube 31 to extrude the fixing block 33, and the fixing block 33 pushes the hemostatic from the liquid outlet 14 to the uterine wall to stop bleeding.
Referring to fig. 3, the cross section of the medicine inlet 32 is a trapezoid structure, the width of the top end of the medicine inlet 32 is greater than the width of the bottom end of the medicine inlet 32, so that the fixing block 33 pushes the hemostatic medicine to rapidly enter the fixing base 13 when pushed by air.
Referring to fig. 3, the cross section of the fixing block 33 is an L-shaped structure, the length of the top end of the fixing block 33 is longer than the length of the bottom end of the fixing block 33, the fixing block 33 is sealed with the vent pipe 31, and in order to make it difficult for the hemostatic inside the infusion tube 24 to enter the inside of the liquid storage cylinder 22 when the fixing block 33 pushes the hemostatic into the fixing base 13.
Referring to fig. 3, two limiting blocks 35 are provided, two limiting blocks 35 are symmetrically fixed inside the vent pipe 31, the length of each of the two limiting blocks 35 is smaller than the radius of the vent pipe 31, and in order to enable the gas to enter the vent pipe 31 and press the fixing block 33 when the inflatable airbag 41 is inflated.
The utility model provides a gynaecology and obstetrics's palace intracavity haemostat's theory of operation as follows:
firstly, the rubber plug 21 is taken down, hemostatic is injected into the liquid storage cylinder 22, the rubber plug 21 is plugged into the liquid storage cylinder 22, so that the hemostatic flows into the infusion tube 24 through the hemostatic inlet 32, when the uterus of a patient bleeds, the uterine cavity balloon body 12 which is not filled with air is inserted into the uterus of the patient through the guide of the guide head 11, so that the fixing seat 13 also enters the uterus of the patient, the handle 42 is pushed by hand to extrude the wavy inflatable air bag 41, air is filled into the uterine cavity balloon body 12 through the air inlet pipe 43, so that the uterine cavity balloon body 12 expands to press the uterus to stop bleeding, the inflatable air bag 41 fills the uterine cavity balloon body 12 with air and fills air into the vent pipe 31, and the fixing block 33, the vent pipe 31 and the inflatable air bag 41 form a sealed cavity, the fixing block 33 is pushed by gas to slide towards the infusion tube 24, so that the spring 34 is stretched to generate elasticity, the fixing block 33 pushes the medicine inlet 32 and the hemostatic inside the infusion tube 24 into the fixing seat 13 more quickly, then the hemostatic enters the uterus of the patient through the four liquid outlet holes 14 to further stop bleeding, the handle 42 is pulled to reset the inflatable air bag 41, the fixing block 33 is reset through the spring 34, the hemostatic inside the liquid storage cylinder 22 continues to enter the infusion tube 24 from the medicine inlet 32, the inflatable air bag 41 is squeezed again to enable the uterine cavity balloon body 12 to be inflated to press the uterus to stop bleeding, meanwhile, the fixing block 33 pushes the hemostatic from the liquid outlet holes 14 into the uterus to stop bleeding, and the uterine cavity balloon body 12 is enabled to press the uterus to stop bleeding while injecting medicine to stop bleeding, reduces the operation time required by uterus hemostasis, and is convenient for rapid operation of the uterus of a patient.
Compared with the prior art, the utility model provides a gynaecology and obstetrics palace intracavity haemostat has following beneficial effect:
the utility model provides a gynaecology and obstetrics's palace intracavity haemostat, aerify gasbag 41 to aerify the palace chamber sacculus body 12 simultaneously with gas filling in breather pipe 31 inside, fixed block 33 with breather pipe 31 with aerify gasbag 41 and form sealed cavity, make gaseous promotion fixed block 33 to slide in the transfer line 24 direction, make the spring 34 tensile produce elasticity, make fixed block 33 with advance medicine mouth 32, after the hemostatic inside transfer line 24 pushes into in the fixing base 13 more fast, make hemostatic get into patient's uterus through four play liquid hole 14 and further stanch, hand power handle 42 makes aerify gasbag 41 reset, fixed block 33 resets through spring 34, the hemostatic inside liquid storage cylinder 22 continues to enter from it enters into transfer line 24 inside to advance medicine mouth 32, extrude again aerify gasbag 41 makes palace chamber sacculus body 12 is aerifyd and is oppressed the hemostatic while of uterus fixed block 33 will stanch the medicine from go out liquid hole 14 and push into the inside hemostasis of uterus, make palace chamber sacculus body 12 oppress hemostatic while injection hemostasis of medicine of patient's uterus, reduced the operating time that the hemostasis of uterus needs, be convenient for carry out the operation of patient uterus fast.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a hemostatic device in palace chamber of gynaecology and obstetrics which characterized in that includes:
a liquid storage structure (2), the liquid storage structure (2) comprising a liquid storage barrel (22);
a hemostatic structure (1), the hemostatic structure (1) being connected to the reservoir structure (2);
an inflatable structure (4), the inflatable structure (4) being connected to the liquid storage structure (2);
a pushing structure (3), wherein the pushing structure (3) is connected to the liquid storage structure (2), the pushing structure (3) comprises an air pipe (31), a medicine inlet (32), a fixed block (33), a spring (34) and a limited block (35), the vent pipe (31) is fixed on the liquid storage cylinder (22), the vent pipe (31) extends into the liquid storage cylinder (22), the bottom end in the liquid storage cylinder (22) is provided with the medicine inlet (32), the medicine inlet (32) is communicated with the liquid storage cylinder (22) and the inside of the vent pipe (31), the fixed block (33) is connected with the vent pipe (31) in a sliding way, the limit block (35) is fixed in the vent pipe (31), the spring (34) is fixed between the fixed block (33) and the limiting block (35), and the spring (34) is located inside the vent pipe (31).
2. The intrauterine hemostat according to claim 1, wherein the liquid storage structure (2) further comprises a rubber stopper (21), a fixing rod (23) and a perfusion tube (24), the liquid storage cylinder (22) is fixed on the top end of the fixing rod (23), the fixing rod (23) is internally hollow, the rubber stopper (21) is in threaded connection with the liquid storage cylinder (22), the perfusion tube (24) is fixed on the liquid storage cylinder (22), the perfusion tube (24) is communicated with the interior of the drug inlet (32), the perfusion tube (24) is arranged in the fixing rod (23), and one side of the perfusion tube (24) is fixed on the ventilation tube (31).
3. The intrauterine hemostat according to claim 2, wherein the hemostasis structure (1) comprises a guide head (11), an intrauterine balloon body (12), a fixing base (13) and liquid outlet holes (14), the fixing base (13) is fixed on one side of the fixing rod (23), the interior of the fixing base (13) is of a hollow structure, the fixing base (13) is symmetrically provided with four liquid outlet holes (14), the four liquid outlet holes (14) are all communicated with the interior of the fixing base (13), the infusion tube (24) is communicated with the interior of the fixing base (13), the intrauterine balloon body (12) is fixed on one side of the fixing base (13), and the guide head (11) is fixed on one side of the intrauterine balloon body (12).
4. The intrauterine hemostat according to claim 3, wherein the inflatable structure (4) comprises an inflatable air bag (41), a handle (42) and an air inlet tube (43), the inflatable air bag (41) is fixed on one side of the fixing rod (23), the air tube (31) is communicated with the inside of the inflatable air bag (41), the air inlet tube (43) is fixed on the inflatable air bag (41), the air inlet tube (43) is communicated with the inside of the inflatable air bag (41), the air inlet tube (43) is located inside the fixing rod (23) and the fixing seat (13), the air inlet tube (43) is communicated with the inside of the intrauterine balloon body (12), and the handle (42) is fixed on one side of the inflatable air bag (41) departing from the fixing rod (23).
5. The intrauterine hemostat according to claim 1, wherein the cross-section of the medicine inlet (32) is a trapezoid structure, and the width of the top end of the medicine inlet (32) is larger than the width of the bottom end of the medicine inlet (32).
6. The intrauterine hemostat according to claim 1, wherein the cross-section of the fixing block (33) is an "L" shape, the length of the top end of the fixing block (33) is greater than the length of the bottom end of the fixing block (33), and the fixing block (33) is sealed with the vent tube (31).
7. The intrauterine hemostat according to claim 1, wherein there are two stoppers (35), two stoppers (35) are symmetrically fixed inside the ventilation tube (31), and the length of each stopper (35) is smaller than the radius of the ventilation tube (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814285.0U CN210301118U (en) | 2019-05-31 | 2019-05-31 | Intrauterine hemostat for obstetrics and gynecology department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814285.0U CN210301118U (en) | 2019-05-31 | 2019-05-31 | Intrauterine hemostat for obstetrics and gynecology department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210301118U true CN210301118U (en) | 2020-04-14 |
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ID=70141433
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920814285.0U Expired - Fee Related CN210301118U (en) | 2019-05-31 | 2019-05-31 | Intrauterine hemostat for obstetrics and gynecology department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210301118U (en) |
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2019
- 2019-05-31 CN CN201920814285.0U patent/CN210301118U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200810 Address after: 610083 Jinniu District, Sichuan Province Rong Avenue, No. 270, No. Patentee after: WESTERN THEATER GENERAL HOSPITAL OF PLA Address before: 610000 room 1701, unit 1, building 9, No. 138, Dongli street, Chenghua District, Chengdu City, Sichuan Province Patentee before: Luo Mingyan |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |