CN107596563A - Implanted cardiac pacemaker connector sealing structure - Google Patents
Implanted cardiac pacemaker connector sealing structure Download PDFInfo
- Publication number
- CN107596563A CN107596563A CN201710954941.2A CN201710954941A CN107596563A CN 107596563 A CN107596563 A CN 107596563A CN 201710954941 A CN201710954941 A CN 201710954941A CN 107596563 A CN107596563 A CN 107596563A
- Authority
- CN
- China
- Prior art keywords
- column sealed
- plug
- connector
- column
- small end
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 230000000747 cardiac effect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 229920000260 silastic Polymers 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 2
- -1 polytetrafluoroethylene Polymers 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Electrotherapy Devices (AREA)
Abstract
A kind of Implanted cardiac pacemaker connector sealing structure, the column sealed chamber of inverted " t " type is formed with above the mounting hole of its connector, and the small end inner diameter of annular seal space is more than the internal diameter of the mounting hole of connector；The column sealed plug of inverted " t " type is housed in the column sealed chamber, and the small end external diameter of column sealed plug is slightly larger than the small end inner diameter of annular seal space, the small end of column sealed plug is set to be sealed with closely connected realize of small end of column sealed chamber, the big end of the column sealed plug is embedded in the big end realization positioning of column sealed chamber.Annular seal space of the present invention uses up-small and down-big cylinder cavity configuration, both can guarantee that sealing property, and and can ensures that sealing-plug will not be moved or come off with extracting because of the insertion of torque spanner in cavity, meets the seal request of Implanted cardiac pacemaker.
Description
Technical field：
The invention belongs to Implanted cardiac pacemaker manufacturing technology field, and in particular to a kind of Implanted cardiac pacemaker connects
Junctor sealing structure.
Background technology：
The sealing system of Implanted cardiac pacemaker is the guarantee that pacemaker function is realized.If Implanted cardiac pacemaker
Sealing system sealing it is unreliable, can directly influence the transmission of pacing signal, serious can also cause circuit positive and negative electrode short-circuit,
Have influence on the life-span of pacemaker battery.The sealing system of Implanted cardiac pacemaker mainly includes two aspects at present, one is
The sealing of pacemaker shell, this is entirely capable of reaching requirement with laser welding technology at this stage；The second is pacemaker epoxy top
Sealing, the sealing on epoxy top include the sealing with the sealing of electrode plug junction and with connector junction.With electrode plug
The sealing of junction, therefore it is normal structure to locate, sealing structure does not have the problem of too big substantially.
Sealing problem is mainly reflected in the sealing of connector junction at this stage.Sealing structure had both required that torque can be made herein
Spanner is conveniently inserted, extracted, and is screwed, is unscrewed fixing screws, and requirement can not damage seal (sealing-plug), and is sealed
Part (sealing-plug) can not have play, come off.So high (being the requirement of sealing property) is required to annular seal space molded surface finish,
Must also have can location structure, either global formation cavity or split shaping, processing technology difficulty is big, annular seal space hold
It is fragile.
The content of the invention：
The present invention provides a kind of stable performance, simple in construction, easy to operate, and economical and practical Implanted cardiac pacemaker connects
Junctor sealing structure, meet the seal request of Implanted cardiac pacemaker.
The technical solution of the present invention：A kind of Implanted cardiac pacemaker connector sealing structure, it is characterized in that：It is described
The column sealed chamber of inverted " t " type is formed with above the mounting hole of connector, and the small end inner diameter of annular seal space is more than the installation of connector
The internal diameter in hole；The column sealed plug of inverted " t " type is housed, and the small end external diameter of column sealed plug is slightly larger than close in the column sealed chamber
The small end inner diameter of chamber is sealed, the small end of column sealed plug is sealed with closely connected realize of small end of column sealed chamber, it is described column sealed
Realize positioning in the big end that the big end of plug is embedded in column sealed chamber.
The column sealed plug is injection moulded using medical use liquid silastic material, and its upper end is formed with torque spanner insertion
Mouthful, lower end is formed with the fixing screws resigning groove of connector.
The forming method of the column sealed chamber is as follows：When moulding Implanted cardiac pacemaker epoxy resin top, first
Technique circle is made using a polytetrafluoroethyltubing tubing, packing ring is made of liquid silicon rubber material, and using a positioning
Pin makees core rod；Then technique snare is mounted in the bottom of alignment pin, packing ring is sleeved on the lower end of alignment pin；Alignment pin is passed through again
The thread head of its lower end is arranged in the fixing screw hole of connector, ensures that technique circle contacts with packing ring and each contact surface of connector
Closely, the column sealed chamber of inverted " t " type is longitudinally molded as, by alignment pin, technique circle and packing ring from epoxy resin after the completion of molding
Exited in top.
The present invention has the advantage that compared with prior art and effect：
1st, annular seal space of the present invention uses up-small and down-big cylinder cavity configuration, both can guarantee that sealing property, and and can ensures sealing
Filling in will not move or come off with extracting because of the insertion of torque spanner in cavity；
2nd, the present invention will ensure the top that is partially disposed in of sealing function, and positioning function is partially disposed in bottom, made
Can uses Split type structure during annular seal space, and the annular seal space so to form out both can guarantee that the quality of cavity, and and can makes operation
Simplicity, high yield rate.
3rd, simple in construction, easy to process, cost is low.
Brief description of the drawings：
Fig. 1 is the structural representation of invention,
Fig. 2 is the structural representation of invention sealing-plug,
Fig. 3 is the shaping schematic view of annular seal space of the present invention.
Embodiment：
With reference to a kind of embodiment of the description present invention of accompanying drawing 1,2,3.
A kind of Implanted cardiac pacemaker connector sealing structure, the top of the mounting hole 1 of the connector are formed with inverted " t "
The column sealed chamber 2 of type, and the small end inner diameter of annular seal space 2 is more than the internal diameter of the mounting hole 1 of connector；In the column sealed chamber 2
Equipped with the column sealed plug 3 of inverted " t " type, and the small end external diameter of column sealed plug 3 is slightly larger than the small end inner diameter of annular seal space 2, makes cylinder
Closely connected realize of small end of the small end of sealing-plug 3 and column sealed chamber 2 seals, and the big end insertion cylinder of the column sealed plug 3 is close
Realize positioning in the big end for sealing chamber 2.
The column sealed plug 3 is using the injection moulding of medical use liquid silastic material, and its upper end is formed with torque spanner and inserted
Entrance 4, lower end are formed with connector fixing screws resigning groove 5.
The forming method of the column sealed chamber 2 is as follows：It is first when moulding Implanted cardiac pacemaker epoxy resin top 10
Technique circle 6 is first made using a polytetrafluoroethyltubing tubing, packing ring 7 is made of liquid silicon rubber material, and uses one
Alignment pin 8 makees core rod；Then technique circle 6 is sleeved on to the bottom of alignment pin 8, packing ring 7 is sleeved on the lower end of alignment pin 8；Again will
Alignment pin 8 is arranged on by the thread head of its lower end in the fixing screw hole of connector 9, is ensured technique circle 6 and packing ring 7 and is connected
The contact of 9 each contact surface of body is close, is longitudinally molded as the column sealed chamber 2 of inverted " t " type, by alignment pin 8, technique circle 6 after the completion of molding
Exited with packing ring 7 from epoxy resin top.
The column sealed chamber 2 of the present invention uses up-small and down-big cylindrical structure, and upper part is mainly responsible for sealing function, ensures body fluid
It will not enter inside Implanted cardiac pacemaker epoxy top；Lower part is mainly responsible for positioning function, ensures column sealed plug 3 in circle
It will not move or come off with extracting because of the insertion of torque spanner in column sealing chamber 2.
The present invention 3 material selections of column sealed plug can be chronically implanted the medical use liquid silicon rubber MED4860 of human body, this material
It is tear resistance highest in injection moulding silastic material, is fully able to ensure the requirement that sealing-plug is in use.
The present invention is when making annular seal space, the difference by hermetic unit with position portion according to performance, using difference
Material shaping, with the result being optimal.Hermetic unit on top makes technique circle, material using polytetrafluoroethyltubing tubing
Surface quality is good and has self-lubricating function, and the demoulding is light；Position portion is placed on bottom, and pad is made using liquid silicon rubber material
Circle, material surface is smooth and has certain elasticity, and shaping backed off after random is convenient, and will not damage the sealing surfaces on top.
Above-described embodiment, simply presently preferred embodiments of the present invention, is not used for limiting the scope of the present invention, therefore all with this
The equivalent variations that content described in invention claim is done, it all should be included within scope of the invention as claimed.
Claims (3)
1. a kind of Implanted cardiac pacemaker connector sealing structure, it is characterized in that：The top of the mounting hole (1) of the connector
The column sealed chamber of inverted " t " type (2) is formed with, and the small end inner diameter of annular seal space (2) is more than the internal diameter of the mounting hole (1) of connector；Institute
State equipped with the column sealed plug (3) of inverted " t " type in column sealed chamber (2), and the small end external diameter of column sealed plug (3) is slightly larger than sealing
The small end inner diameter of chamber (2), the small end of column sealed plug (3) is set to be sealed with closely connected realize of small end of column sealed chamber (2), the circle
Realize positioning in the big end that the big end of column sealing plug (3) is embedded in column sealed chamber (2).
2. Implanted cardiac pacemaker connector sealing structure according to claim 1, it is characterized in that：It is described column sealed
(3) are filled in be injection moulded using medical use liquid silastic material, and its upper end is formed with torque spanner insert port (4), lower end is formed with company
The fixing screws resigning groove (5) of junctor (9).
3. Implanted cardiac pacemaker connector sealing structure according to claim 1, it is characterized in that described column sealed
The forming method of chamber (2) is as follows：When moulding Implanted cardiac pacemaker epoxy resin top, first using a polytetrafluoroethylene (PTFE)
Tubing is made technique circle (6), packing ring (7) is made of liquid silicon rubber material, and makees core rod using an alignment pin (8)；
Technique circle (6) is then sleeved on to the bottom of alignment pin (8), packing ring (7) is sleeved on the lower end of alignment pin (8)；Again by alignment pin
(8) it is arranged on by the thread head of its lower end in the fixing screw hole of connector (9), ensures technique circle (6) and packing ring (7) and connect
The contact of each contact surface of junctor (9) is close, is longitudinally molded as the column sealed chamber of inverted " t " type (2), after the completion of molding by alignment pin (8),
Technique circle (6) and packing ring (7) exit from epoxy resin top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954941.2A CN107596563A (en) | 2017-10-13 | 2017-10-13 | Implanted cardiac pacemaker connector sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954941.2A CN107596563A (en) | 2017-10-13 | 2017-10-13 | Implanted cardiac pacemaker connector sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107596563A true CN107596563A (en) | 2018-01-19 |
Family
ID=61077198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710954941.2A Pending CN107596563A (en) | 2017-10-13 | 2017-10-13 | Implanted cardiac pacemaker connector sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107596563A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455270Y (en) * | 2000-12-07 | 2001-10-24 | 陕西秦明医学仪器股份有限公司 | Screw hole sealer for implanted cardiac pacemaker |
| CN103893911A (en) * | 2012-12-28 | 2014-07-02 | 苏州景昱医疗器械有限公司 | Implantable medical device and system with structure for preventing screw-out of screws |
| US20150018922A1 (en) * | 2013-07-12 | 2015-01-15 | Cardiac Pacemakers, Inc. | Method of overmoulding top mounted seal plug cavities |
| US20150018923A1 (en) * | 2013-07-12 | 2015-01-15 | Cardiac Pacemakers, Inc. | Seal plug |
| CN105107091A (en) * | 2015-08-21 | 2015-12-02 | 北京品驰医疗设备有限公司 | Sealing plug and implantable medical device using same |
-
2017
- 2017-10-13 CN CN201710954941.2A patent/CN107596563A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455270Y (en) * | 2000-12-07 | 2001-10-24 | 陕西秦明医学仪器股份有限公司 | Screw hole sealer for implanted cardiac pacemaker |
| CN103893911A (en) * | 2012-12-28 | 2014-07-02 | 苏州景昱医疗器械有限公司 | Implantable medical device and system with structure for preventing screw-out of screws |
| US20150018922A1 (en) * | 2013-07-12 | 2015-01-15 | Cardiac Pacemakers, Inc. | Method of overmoulding top mounted seal plug cavities |
| US20150018923A1 (en) * | 2013-07-12 | 2015-01-15 | Cardiac Pacemakers, Inc. | Seal plug |
| CN105107091A (en) * | 2015-08-21 | 2015-12-02 | 北京品驰医疗设备有限公司 | Sealing plug and implantable medical device using same |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |
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| RJ01 | Rejection of invention patent application after publication |