CN208525654U - Implanted cardiac pacemaker connector sealing structure - Google Patents
Implanted cardiac pacemaker connector sealing structure Download PDFInfo
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- CN208525654U CN208525654U CN201721320202.XU CN201721320202U CN208525654U CN 208525654 U CN208525654 U CN 208525654U CN 201721320202 U CN201721320202 U CN 201721320202U CN 208525654 U CN208525654 U CN 208525654U
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- column sealed
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Abstract
A kind of Implanted cardiac pacemaker connector sealing structure is formed with the column sealed chamber of inverted " t " type above the mounting hole of connector, and the small end inner diameter of seal chamber is greater 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 outer diameter of column sealed plug is slightly larger than the small end inner diameter of seal chamber, the closely connected realization of the small end of the small end and column sealed chamber that make column sealed plug seals, and the big end that the big end of the column sealed plug is embedded in column sealed chamber realizes positioning.The utility model seal chamber use up-small and down-big cylinder cavity configuration, not only can guarantee sealing performance, but can guarantee sealing-plug in cavity will not because of torque spanner insertion and extract and move or fall off, meet the seal request of Implanted cardiac pacemaker.
Description
Technical field:
The utility model belongs to Implanted cardiac pacemaker manufacturing technology field, and in particular to a kind of implantable cardiac pace-making
Device connector sealing structure.
Background technique:
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, directly will affect the transmission of pacing signal, it is serious also to will cause circuit positive and negative electrode short circuit,
Influence the service life 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 includes the sealing with the sealing of electrode plug junction and with connector junction.With electrode plug
The sealing of junction, because being herein normal structure, sealing structure does not have too big problem 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 into, extracts, and screws, unscrews fixing screws, and requirement cannot damage sealing element (sealing-plug), and seals
Part (sealing-plug) cannot have play, fall off.So high (being the requirement of sealing performance) is required to seal chamber molded surface finish,
Must also have can location structure, either integrally formed cavity or seperated molding, processing technology difficulty is big, and seal chamber holds
It is easy to damage.
Utility model content:
The utility model provides a kind of performance stabilization, and structure is simple, easy to operate, economical and practical implantable cardiac pace-making
Device connector sealing structure, meets the seal request of Implanted cardiac pacemaker.
The technical solution of the utility model: a kind of Implanted cardiac pacemaker connector sealing structure, it is characterized in that:
The column sealed chamber of inverted " t " type is formed with above the mounting hole of the connector, and the small end inner diameter of seal chamber is greater than connector
The internal diameter of mounting hole；The column sealed plug of inverted " t " type is housed, and the small end outer diameter of column sealed plug is slightly larger in the column sealed chamber
In the small end inner diameter of seal chamber, the closely connected realization of the small end of the small end for making column sealed plug and column sealed chamber is sealed, the cylinder
The big end that the big end of sealing-plug is embedded in column sealed chamber realizes positioning.
The column sealed plug is injection moulded using medical use liquid silastic material, and the 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 into using a polytetrafluoroethyltubing tubing, washer is made of liquid silicon rubber material, and using a positioning
Pin makees mold core；Then technique snare is mounted in the lower part of positioning pin, washer is sleeved on the lower end of positioning pin；Positioning pin is passed through again
The thread head of its lower end is mounted in the fixing screw hole of connector, guarantees that technique circle and washer and connector respectively contact face contact
Closely, the column sealed chamber of inverted " t " type is longitudinally molded as, by positioning pin, technique circle and washer from epoxy resin after the completion of molding
It is exited in top.
The utility model has the advantage that compared with prior art and effect:
1, the utility model seal chamber uses up-small and down-big cylinder cavity configuration, not only can guarantee sealing performance, but also can guarantee
Sealing-plug in cavity will not because of torque spanner insertion it is mobile or fall off with extracting；
2, the utility model will guarantee the top that is partially disposed in of sealing function, and positioning function is partially disposed in lower part,
Separate structure can be used when making seal chamber, the seal chamber to form out in this way not only can guarantee the quality of cavity, but also can make
It is easy to operate, high yield rate.
3, structure is simple, easy to process, at low cost.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of utility model,
Fig. 2 is the structural schematic diagram of utility model sealing-plug,
Fig. 3 is the shaping schematic view of the utility model seal chamber.
Specific embodiment:
An embodiment of the present invention is described in conjunction with attached drawing 1,2,3.
The top of a kind of Implanted cardiac pacemaker connector sealing structure, the mounting hole 1 of the connector is formed with inverted " t "
The column sealed chamber 2 of type, and the small end inner diameter of seal chamber 2 is greater 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 outer diameter of column sealed plug 3 is slightly larger than the small end inner diameter of seal chamber 2, makes cylinder
The closely connected realization of the 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
The big end for sealing chamber 2 realizes positioning.
The column sealed plug 3 is injection moulded using medical use liquid silastic material, and the upper end is formed with torque spanner and inserts
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: first when moulding Implanted cardiac pacemaker epoxy resin top 10
It is first made into technique circle 6 using a polytetrafluoroethyltubing tubing, washer 7 is made of liquid silicon rubber material, and use one
Positioning pin 8 makees mold core；Then technique circle 6 is sleeved on to the lower part of positioning pin 8, washer 7 is sleeved on the lower end of positioning pin 8；Again will
Positioning pin 8 is mounted in the fixing screw hole of connector 9 by the thread head of its lower end, is guaranteed technique circle 6 and washer 7 and is connect
Respectively contact face contact is close for body 9, the column sealed chamber 2 of inverted " t " type is longitudinally molded as, by positioning pin 8, technique circle 6 after the completion of molding
It is exited with washer 7 from epoxy resin top.
The column sealed chamber 2 of the utility model uses up-small and down-big cylindrical structure, and upper part is mainly responsible for sealing function, guarantees
Body fluid will not enter inside Implanted cardiac pacemaker epoxy top；Lower part is mainly responsible for positioning function, guarantees column sealed plug 3
In column sealed chamber 2 will not because of torque spanner insertion it is mobile or fall off with extracting.
The utility model 3 material selections of column sealed plug can be chronically implanted the medical use liquid silicon rubber MED4860 of human body, this
Material is that tear resistance is highest in injection moulding silastic material, is fully able to guarantee the requirement that sealing-plug is in use.
The utility model, by hermetic unit and position portion according to the difference of service performance, is used when making seal chamber
Different material molding, with the result being optimal.Hermetic unit on top is made into technique circle using polytetrafluoroethyltubing tubing,
Material surface is high-quality and has self-lubricating function, and demoulding is light；Position portion is placed on lower part, using liquid silicon rubber material system
At washer, material surface is smooth and has certain elasticity, and molding backed off after random is convenient, and will not damage the sealing surfaces on top.
Above-described embodiment, the only preferred embodiment of the utility model are not used to limit the utility model practical range,
Therefore all equivalent variationss done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
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
It is formed with the column sealed chamber of inverted " t " type (2), and the small end inner diameter of seal chamber (2) is greater than the internal diameter of the mounting hole (1) of connector；Institute
It states equipped with the column sealed plug (3) of inverted " t " type in column sealed chamber (2), and the small end outer diameter of column sealed plug (3) is slightly larger than sealing
The small end inner diameter of chamber (2) seals the closely connected realization of small end of the small end and column sealed chamber (2) of column sealed plug (3), the circle
The big end that the big end of column sealing plug (3) is embedded in column sealed chamber (2) realizes positioning.
2. Implanted cardiac pacemaker connector sealing structure according to claim 1, it is characterized in that: described column sealed
It fills in (3) to be injection moulded using medical use liquid silastic material, and the 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, using a polytetrafluoroethylene (PTFE) first
Tubing is made into technique circle (6), is made of liquid silicon rubber material washer (7), and makees mold core using a positioning pin (8)；
Technique circle (6) is then sleeved on to the lower part of positioning pin (8), washer (7) is sleeved on the lower end of positioning pin (8)；Again by positioning pin
(8) it is mounted in the fixing screw hole of connector (9), guarantees technique circle (6) and washer (7) and connected by the thread head of its lower end
Respectively contact face contact is close for junctor (9), is longitudinally molded as the column sealed chamber of inverted " t " type (2), after the completion of molding by positioning pin (8),
Technique circle (6) and washer (7) are exited from epoxy resin top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721320202.XU CN208525654U (en) | 2017-10-13 | 2017-10-13 | Implanted cardiac pacemaker connector sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721320202.XU CN208525654U (en) | 2017-10-13 | 2017-10-13 | Implanted cardiac pacemaker connector sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208525654U true CN208525654U (en) | 2019-02-22 |
Family
ID=65398727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721320202.XU Active CN208525654U (en) | 2017-10-13 | 2017-10-13 | Implanted cardiac pacemaker connector sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208525654U (en) |
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2017
- 2017-10-13 CN CN201721320202.XU patent/CN208525654U/en active Active
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