CN202516164U - Encapsulation apparatus for implantable cardiac pacemaker - Google Patents
Encapsulation apparatus for implantable cardiac pacemaker Download PDFInfo
- Publication number
- CN202516164U CN202516164U CN2012201359130U CN201220135913U CN202516164U CN 202516164 U CN202516164 U CN 202516164U CN 2012201359130 U CN2012201359130 U CN 2012201359130U CN 201220135913 U CN201220135913 U CN 201220135913U CN 202516164 U CN202516164 U CN 202516164U
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- electrode
- cardiac pacemaker
- implantable cardiac
- mould
- plug
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Abstract
An encapsulation apparatus for implantable cardiac pacemaker comprises an encapsulation mould, a sealing-plug chamber forming mould, positioning bars for fixing the sealing-plug chamber forming mould, and an electrode positioning core bar for forming pace-making electrode chambers and controlling and determining the positions of electrode blocks, wherein a titanium housing placing chamber, a top cap forming chamber, connection holes for the positioning bars, a connection hole for the electrode positioning core bar, a feed port and air exhaust port are arranged in the encapsulation mould. According to the utility model, the encapsulation apparatus is skillfully used to enable the top cap of the implantable cardiac pacemaker to be encapsulated into the top portion of the titanium housing by the embedding method, so that the embedding is facilitated, and the components of the encapsulation apparatus are stably positioned and accurately located; a reasonable encapsulation method is used, so that problems of generation of bubbles and volume change of the top cap material are prevented throughout the entire curing process, thereby ensuring the stability of the shapes and dimensions of the top cap and the chambers on the top cap; and the strength, transparency and integrity of the top cap are ensured.
Description
Technical field
This utility model relates to implantable cardiac pacemaker field, particularly a kind of implantable cardiac pacemaker packaging system.
Background technology
The implantable cardiac pacemaker is to substitute or additional normal excitation and the systaltic physiology electronic system of control; Its electric pulse stimulation heart through periodically providing; Cause heartbeat, be usually used in that hole property stops, heart disease such as sino atrial block, sinus bradycardia or tachycardia.Existing implantable cardiac pacemaker is normally by power circuit in the titanium shell of titanium shell, device, form with electrode square, the pacing electrode that is connected with the electrode square and the top that is arranged on the titanium shell of power circuit electrical connection and by the top cover that epoxy resin cure forms.Wherein, top cover has the effect of two aspects: on the one hand be between circuit and electrode, to form one to be close to gastight tube chamber, be used for being connected of pacing electrode and power circuit; Be the interaction and the influence of isolated circuit and Human Physiology environment on the other hand.Therefore, the dimensional stability and the degree of accuracy of top cover are had relatively high expectations, and do not appear in the newspapers as yet and explanation for the device and the process of top cover embedding aspect at present.
The utility model content
The purpose of this utility model is to said existing problems and deficiency a kind of both be convenient to assembling, the demoulding and dismounting to be provided, and can guarantee the implantable cardiac pacemaker packaging system of the dimensional stability and the degree of accuracy of top cover again well.
The solution that this utility model solves its technical problem is: a kind of implantable cardiac pacemaker packaging system; This implantable cardiac pacemaker comprise power circuit in the titanium shell of titanium shell, device, with electrode square, the pacing electrode that is connected with the electrode square of power circuit electrical connection and the top cover that is arranged on the titanium cover top portion; Be provided with the pacing electrode chamber in the said top cover and be used for the sealing-plug plug chamber of device sealing-plug; Said packaging system comprises encapsulating mould, sealing-plug plug chamber mould, is used for fixing the locating rod of sealing-plug plug chamber mould and is used to form the pacing electrode chamber and control reaches the positioning of electrode core bar of confirming electrode square position; Be provided with titanium shell placed cavity, top cover forming cavity, locating rod connecting hole, positioning of electrode core bar connecting hole, charging aperture and air vent in the said encapsulating mould, an end of said locating rod passes locating rod connecting hole and sealing-plug plug chamber mould and is connected with the electrode square.
As the further improvement of said technical scheme, said encapsulating mould is made up of two parts.
As the further improvement of said technical scheme, said encapsulating mould is made by transparent silicone rubber.
As the further improvement of said technical scheme, said positioning of electrode core bar adopts the alloy material of low elasticity high strength and high hardness to be made.
As the further improvement of said technical scheme, the outer surface of said positioning of electrode core bar is provided with silicone rubber coating.
The beneficial effect of this utility model is: this utility model is owing to adopted packaging system dexterously; Make the top cover of forming the implantable cardiac pacemaker be encapsulated into the top of titanium shell through the mode of embedding, not only embedding is easy, and position stability and accurate positioning between each ingredient of packaging system; Adopt rational method for packing simultaneously; Make the material that forms top cover that problems such as change in volume and generation bubble can not take place in whole solidified process, and curing reaction speed is fast, thereby has guaranteed top cover and gone up the shape of each cavity and stablizing of size; And intensity, properties of transparency and the whole integrity of top cover have been guaranteed; Improved the total quality of implantable cardiac pacemaker effectively, and each ingredient of packaging system is installed and dismounting is easy, thereby make the demoulding of implantable cardiac pacemaker easy.Again owing to the encapsulating mould of forming packaging system is made up of the two parts that adopt transparent silicone rubber to process; So not only the preparation of encapsulating mould is simple, with low cost, and in the process of embedding; Transparent silicone rubber encapsulating mould both had been convenient to observe the top cover internal state; Be convenient to again in the embedding process situation in the encapsulating mould made judgement, and the structure of encapsulating mould is simple relatively, is convenient to assembling and removes; Avoided in installation and the demolishing process destruction, guaranteed that encapsulating mould can reuse encapsulating mould.Again because the positioning of electrode core bar adopts the alloy material of low elasticity high strength and high hardness to process; And the outer surface at the positioning of electrode core bar is coated with silicone rubber coating; Thereby when having guaranteed pacing electrode chamber accuracy to size and axiality, solved the release problems of positioning of electrode core bar again well.
Description of drawings
Below in conjunction with accompanying drawing and instance this utility model is further described.
Fig. 1 is the part section structural representation of this utility model implantable cardiac pacemaker.
Fig. 2 is the perspective view of this utility model packaging system.
Fig. 3 is the wherein side structure sketch map of a part of this utility model packaging system.
Fig. 4 is the decomposition texture sketch map of this utility model packaging system.
The specific embodiment
Like Fig. 1-shown in Figure 4; The described implantable cardiac pacemaker of this utility model packaging system; Because this implantable cardiac pacemaker comprises power circuit 2 titanium shell 1 in of titanium shell 1, device, with electrode square 3, the pacing electrode 4 that is connected with electrode square 3 of power circuit 2 electrical connections and be arranged on the top cover 5 at titanium shell 1 top; Wherein be provided with pacing electrode chamber 7 in the top cover 5 and be used for the sealing-plug plug chamber 8 of device sealing-plug 6; Therefore be directed against the implantable cardiac pacemaker of this structure; Its packaging system comprises encapsulating mould 9, sealing-plug plug chamber mould 10, is used for fixing the locating rod 11 of sealing-plug plug chamber mould 10 and is used to form pacing electrode chamber 7 and the positioning of electrode core bar 12 of control and definite electrode square 3 positions; Wherein be provided with titanium shell placed cavity 13, top cover forming cavity 14, locating rod connecting hole 15, positioning of electrode core bar connecting hole 16, charging aperture 17 and air vent 18 in the encapsulating mould 9, and an end of locating rod 11 passes locating rod connecting hole 15 and sealing-plug plug chamber mould 10 and is connected with electrode square 3.Like Fig. 2 and shown in Figure 4; Encapsulating mould 9 is made up of two parts; And form on two parts of encapsulating mould 9 and be respectively arranged with connecting hole 19, and through screw or bolt or other connector with realize encapsulating mould 9 two-part dismantled and assembled connections being connected of connecting hole 19, so both made things convenient for the assembling and the dismounting of encapsulating mould 9; Make the demoulding of implantable cardiac pacemaker easy again; And locating rod connecting hole 15, positioning of electrode core bar connecting hole 16 and 18 of air vents are arranged on the two-part wherein part of forming encapsulating mould 9, and a side of encapsulating mould 9 is provided with end difference, and positioning of electrode core bar 12 penetrates from the side that encapsulating mould 9 has end difference.In the process of embedding, to observe top cover 5 internal states for the convenience of the users and the situation in the encapsulating mould 9 is made judgement, encapsulating mould 9 is made by transparent silicone rubber.For the accuracy to size and the axiality that can guarantee pacing electrode chamber 7; Can solve the release problems of positioning of electrode core bar 12 again well; Positioning of electrode core bar 12 adopts the alloy material of low elasticity high strength and high hardness to be made, and is provided with silicone rubber coating at the outer surface of positioning of electrode core bar 12.Like Fig. 3 and shown in Figure 4; Locating rod 11 and positioning of electrode core bar 12 are the stepped body of rod; Wherein locating rod 11 adopts silicone rubber to be made, and locating rod 11 and electrode square 3 are for being threaded, owing to electrode square 3 has two; Therefore locating rod 11 correspondences are provided with two, and locating rod connecting hole 15 is arranged on the top of encapsulating mould 9.In addition, in order to ensure the discharge of gas in the embedding process, air vent 18 also is arranged on the top of encapsulating mould 9.
The method for packing and the step of implantable cardiac pacemaker are following:
At first, titanium shell 1, electrode square 3, sealing-plug plug chamber mould 10, locating rod 11 and positioning of electrode core bar 12 are installed on the encapsulating mould 9 on request;
Then, in top cover forming cavity 14, material solidifies under predefined embedding temperature and embedding pressure with charging aperture 17 embeddings of material on encapsulating mould 9 that form top cover 5, treats the demoulding after the material full solidification, promptly accomplishes the encapsulation of implantable cardiac pacemaker.
Wherein, the material that forms top cover 5 is mixed and made into firming agent TEPA by epoxy resin 201, and the ratio of epoxy resin and firming agent is: 100:20-100:50.。Receive the influence of ambient temperature and change in volume, generation bubble and the slow-footed problem of curing reaction take place in the stage of reaction for fear of material, can know through repeatedly research and test, when the embedding temperature is 30 ℃～40 ℃; Can guarantee that material has reaction rate preferably, and change in volume can not take place and produce problems such as bubble, and keep under 30 ℃～40 ℃ the temperature; Material was through 24 hours curing; Can possess basic intensity and shape, if through 48 hours curing, the curing reaction degree is then greater than 99%; This moment, material reached ideal intensity and shape, and properties of transparency is good.Simultaneously; Under said embedding temperature; Embedding pressure is also had special requirement, and promptly embedding pressure is 10 ± 5KPa, and keeps this vacuum until material cured at least 48 hours; So just can fully get rid of the minute quantity bubble that the factors such as deformation, exothermic heat of reaction and the volatilization of reactant trace of material cured course of reaction possibly cause, improve the quality of embedding effectively.
In addition, after the encapsulation of accomplishing the implantable cardiac pacemaker, also will modify its outward appearance, the line correlation performance detection of going forward side by side meets instructions for use to guarantee the implantable cardiac pacemaker.
More than be that preferred embodiments to this utility model specifies; But this utility model is created and is not limited to said embodiment; Those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite of this utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (5)
1. implantable cardiac pacemaker packaging system; This implantable cardiac pacemaker comprises power circuit (2) titanium shell (1) in of titanium shell (1), device, with electrode square (3), the pacing electrode (4) that is connected with electrode square (3) of power circuit (2) electrical connection and be arranged on the top cover (5) at titanium shell (1) top; Be provided with pacing electrode chamber (7) in the said top cover (5) and be used for the sealing-plug plug chamber (8) of device sealing-plug (6); It is characterized in that: said packaging system comprises encapsulating mould (9), sealing-plug plug chamber mould (10), is used for fixing the locating rod (11) of sealing-plug plug chamber mould (10) and is used to form pacing electrode chamber (7) and control reaches the positioning of electrode core bar (12) of confirming electrode square (3) position; Be provided with titanium shell placed cavity (13), top cover forming cavity (14), locating rod connecting hole (15), positioning of electrode core bar connecting hole (16), charging aperture (17) and air vent (18) in the said encapsulating mould (9), an end of said locating rod (11) passes locating rod connecting hole (15) and sealing-plug plug chamber mould (10) and is connected with electrode square (3).
2. implantable cardiac pacemaker packaging system according to claim 1 is characterized in that: said encapsulating mould (9) is made up of two parts.
3. implantable cardiac pacemaker packaging system according to claim 1 is characterized in that: said encapsulating mould (9) is made by transparent silicone rubber.
4. implantable cardiac pacemaker packaging system according to claim 1 is characterized in that: said positioning of electrode core bar (12) adopts the alloy material of low elasticity high strength and high hardness to be made.
5. according to claim 1 or 4 described implantable cardiac pacemaker packaging systems, it is characterized in that: the outer surface of said positioning of electrode core bar (12) is provided with silicone rubber coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201359130U CN202516164U (en) | 2012-04-01 | 2012-04-01 | Encapsulation apparatus for implantable cardiac pacemaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201359130U CN202516164U (en) | 2012-04-01 | 2012-04-01 | Encapsulation apparatus for implantable cardiac pacemaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202516164U true CN202516164U (en) | 2012-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201359130U Withdrawn - After Issue CN202516164U (en) | 2012-04-01 | 2012-04-01 | Encapsulation apparatus for implantable cardiac pacemaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202516164U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641555A (en) * | 2012-04-01 | 2012-08-22 | 广东省医疗器械研究所 | Implantable heart pacemaker packaging device and implantable heat pacemaker packaging method |
| CN112454780A (en) * | 2020-11-27 | 2021-03-09 | 清华大学 | Epoxy filling and sealing device capable of being implanted into pulse generator |
-
2012
- 2012-04-01 CN CN2012201359130U patent/CN202516164U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641555A (en) * | 2012-04-01 | 2012-08-22 | 广东省医疗器械研究所 | Implantable heart pacemaker packaging device and implantable heat pacemaker packaging method |
| CN112454780A (en) * | 2020-11-27 | 2021-03-09 | 清华大学 | Epoxy filling and sealing device capable of being implanted into pulse generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121107 Effective date of abandoning: 20140820 |
|
| RGAV | Abandon patent right to avoid regrant |