CN110545619A - Active implantable medical device and method of assembling same - Google Patents

Abstract

the present invention provides an active implantable medical device comprising: the shell assembly is provided with two detachable layers, wherein a first accommodating groove for accommodating the hard circuit board is formed in the first layer, and a second accommodating groove for accommodating the coil is formed in the second layer; the hard circuit board is fixed in the first accommodating groove of the shell assembly; the coil is fixed in the second accommodating groove of the shell assembly; the rigid connecting piece is fixed between the first layer and the second layer of the shell assembly, and two ends of the rigid connecting piece are respectively and electrically connected with the coil and the hard circuit board; according to the active implantable medical device, the rigid connecting piece is electrically connected with the hard circuit board and the coil in the shell assembly in a welding mode, and after the rigid connecting piece is welded, compared with the traditional surface-mounted connection of a flexible connecting piece, the rigid connecting piece has the advantages that the rigid connecting piece is more convenient to disassemble and is not easy to damage after being disassembled, so that the active implantable medical device can be disassembled and assembled for many times, and the active implantable medical device is convenient to maintain.

Description

Active implantable medical device and method of assembling same

Technical Field

The invention relates to the technical field of implantable medical devices, in particular to an active implantable medical device and an assembling method thereof.

Background

an Active Implantable Medical Device (AIMD) is a Medical apparatus installed inside the body of a user, and the apparatus has a battery inside, a hard circuit board (provided with sensors, chips and other elements), and the AIMD realizes corresponding therapy depending on a set program and operating parameters, which can be set differently according to the condition of the user. Because the etiology and the illness state of the users are different, different active implantable medical devices installed in the bodies of the users generally have different operation states, and the operation states are reflected in the battery voltage, the operation time, the power, the current magnitude, the frequency and the like of the active implantable medical device. In order to ensure stability, safety and long-term reliability of the implant, it is often necessary to perform a full test of the implant, in particular a full test of the hard circuit board of the implant.

in the active implantation device in the prior art, because the volume of the implantation device is pursued to be minimized, a hard circuit board and a coil are commonly connected by adopting a soft connecting board, and two assembling modes are provided, namely, firstly, the coil and the soft connecting board are connected into a whole, the hard circuit board is separately tested, and after the test of the hard circuit board is finished, the soft connecting board is connected with the hard circuit board; and secondly, the hard circuit board is connected with the soft connecting board, the hard circuit board and the soft connecting board are tested together, and then the soft connecting board is connected with the coil.

No matter what kind of connection technology is adopted to the aforesaid, all inevitablely will use the flexible connecting plate, and owing to with flexible connecting plate and coil or hard circuit board welded connection back, fixed through the rubber coating again, the flexible connecting plate is not convenient for dismantle, detects the damage that causes whole device easily behind the unqualified dismantlement. In addition, after the flexible connecting plate is welded, the requirements on storage time and storage conditions are high in order to guarantee welding quality.

Disclosure of Invention

Therefore, in order to facilitate the active implanted device to be disassembled and assembled for a plurality of times, the invention provides the active implanted device which is not connected by a soft connecting plate.

The invention also provides an assembly method of the active implantation type medical device.

The invention provides an active implantable medical device comprising:

The shell assembly is provided with two detachable layers, wherein a first accommodating groove for accommodating the hard circuit board is formed in the first layer, and a second accommodating groove for accommodating the coil is formed in the second layer;

The hard circuit board is fixed in the first accommodating groove of the shell assembly;

The coil is fixed in the second accommodating groove of the shell assembly;

The rigid connecting piece is fixed between the first layer and the second layer of the shell assembly, and two ends of the rigid connecting piece are respectively and electrically connected with the coil and the hard circuit board; the rigid connecting piece is connected with the frame through a positioning structure.

Preferably, the hard circuit board has an insertion hole for inserting the rigid connector.

Preferably, the rigid connection member includes:

A first connection section at one end, being a straight section, fixed through the insertion hole of the hard circuit board inserted into the first layer of the case assembly, and electrically connected with the hard circuit board;

The second connecting section is positioned at the other end opposite to the first connecting section, is a straight section, is fixed by being inserted into the shell assembly, penetrates through the shell assembly, extends into the second layer of the shell assembly, and is used for being electrically connected with the coil;

And the bending section is positioned between the first connecting section and the second connecting section and is of a bending structure.

preferably, the housing assembly includes:

the upper cover is provided with a groove for accommodating the frame and is detachably and fixedly connected with the outer wall of the frame;

the frame is fixedly connected between the upper cover and the lower cover;

and the lower cover is buckled and butted with the upper cover and is fixedly connected with the frame through clamping.

preferably, the frame comprises:

the first accommodating groove is positioned on one surface of the frame and is used for accommodating the hard circuit board;

The second accommodating groove is positioned on the other surface of the frame opposite to the first accommodating groove and is used for accommodating the coil;

And the connecting hole penetrates through the frame and is used for penetrating through the rigid connecting piece so that the rigid connecting piece is electrically connected with the hard circuit board and the coil respectively.

Preferably, a rigid connecting piece positioning structure is arranged on one side, close to the first accommodating groove, of the connecting hole on the frame, and the positioning structure fixes the direction of the rigid connecting piece through clearance fit.

Preferably, the positioning structure includes:

The two positioning blocks are of a quarter-cylinder structure and are separately arranged in two adjacent quadrants on the periphery of the connecting hole, and a gap for accommodating the rigid connecting piece is formed between the two positioning blocks.

Preferably, the lower cover includes:

the outer sleeve is buckled and butted with the upper cover;

The lining is detachably and fixedly connected in the outer sleeve and used for clamping the frame.

Preferably, a buckle extending towards the lower cover is arranged on the side of the first accommodating groove of the frame, and a first clamping hole for clamping and matching with the buckle is formed in the inner liner of the lower cover;

The edge of the hard circuit board is provided with a second clamping hole which is used for being matched with the first clamping hole to enable the buckle of the frame to be clamped into the first clamping hole, and the first clamping hole and the second clamping hole form a clamping groove structure.

the invention provides an assembly method of an active implantation type medical device, which comprises the following steps:

Fixing the tested hard circuit board in a first accommodating groove of a first layer of the shell assembly;

inserting a rigid connecting piece into an insertion hole of the shell assembly, so that two ends of the rigid connecting piece are respectively inserted into the first layer and the second layer of the shell assembly;

Connecting the coil in the second layer of the shell assembly with one end of the rigid connecting piece through welding;

And connecting the other end of the rigid connecting piece with the hard circuit board in the first layer of the shell assembly through welding.

the technical scheme of the invention has the following advantages:

1. According to the active implantable medical device, the rigid connecting piece is electrically connected with the hard circuit board and the coil in the shell assembly in a welding mode, and after the rigid connecting piece is welded, compared with the surface-mounted connection of the conventional flexible connecting piece, the rigid connecting piece has the advantages of being more convenient to disassemble and difficult to damage after disassembly, so that the active implantable medical device can be disassembled and assembled for many times, and the active implantable medical device is convenient to maintain; the connecting hole with the rigid connecting piece passes through location structure and is connected, and the rigid connecting piece can carry out location structure after inserting and establishing in the connecting hole, makes its both ends can be more smooth be connected with hard-line board and coil electricity respectively.

2. the active implantation type medical device provided by the invention has the advantages that the rigid circuit board is provided with the insertion hole for inserting the rigid connecting piece, after the rigid connecting piece is inserted into the front side of the rigid circuit board from the back side, the rigid connecting piece is electrically connected with the rigid circuit board from the front side of the rigid circuit board, and the rigid connecting piece does not need to be bent at the welding connection point, so that the stability of the electrical connection can be improved.

3. The active implantable medical device provided by the invention is characterized in that the middle section of the rigid connecting piece is a bending section, and the bending section is used for buffering the welding spot stress of the two end sections and improving the stability of electric connection.

4. The active implantation type medical device provided by the invention has the advantages that the shell assembly is formed by combining the upper cover, the frame and the lower cover, the upper cover and the frame are detachably fixed, and the lower cover and the frame are fixed in a clamping manner, so that a stable integral structure is formed.

5. The invention provides an active implantation type medical device.A frame of a shell component is provided with a first accommodating groove for accommodating a hard circuit board, a second accommodating groove and a first coil, wherein the first accommodating groove is positioned on one side of the frame; thus, the hard circuit board can be separated from the coil, and the rigid connecting piece is convenient to mount. The two ends of the rigid connecting piece can be respectively and electrically connected with the hard circuit board and the coil only by penetrating the rigid connecting piece through the frame, thereby avoiding the defect that the rigid connecting piece needs to be in a soft connection mode for electrical connection.

6. according to the active implantation type medical device provided by the invention, the rigid connecting piece positioning structure is arranged on one side, close to the first accommodating groove, of the connecting hole on the frame and is used for fixing the rigid connecting piece, so that the rigid connecting piece is prevented from randomly shifting and rotating, and the accuracy of the welding position of the rigid connecting piece is ensured.

7. According to the active implantable medical device provided by the invention, the rigid connecting piece is in clearance fit through the gap between the two positioning blocks, so that the random rotation of the rigid connecting piece is limited, and the direction uniformity of the rigid connecting piece is ensured.

8. According to the active implantable medical device provided by the invention, the lower cover of the shell component is formed by combining the outer sleeve and the inner lining, the outer sleeve is used for being buckled and butted with the upper cover, and the inner lining is used for being clamped and connected with the frame, so that the shell component is ensured to be arc-shaped, and the manufacturing difficulty of integrally manufacturing the lower cover can be reduced.

9. according to the active implantation type medical device provided by the invention, the buckle for clamping and connecting the frame and the lower cover is arranged on the frame, the buckle is inserted into the first clamping hole arranged on the inner liner of the lower cover to complete the combination of the buckle and the first clamping hole, at the moment, the outer sleeve of the lower cover is buckled and butted with the upper cover, so that the shape of the shell assembly forms an arc structure convenient for implantation;

The edge of the hard circuit board is provided with a clamping hole which is used for being matched with the first clamping hole and enabling the buckle of the frame to be clamped into the second clamping hole of the first clamping hole, the first clamping hole and the second clamping hole form a clamping groove structure, when the buckle is inserted, the buckle firstly passes through the second clamping hole through deformation and then is clamped into the first clamping hole, and therefore clamping is completed under the matching of the first clamping hole and the second clamping hole.

10. according to the assembling method of the active implantation type medical device, before the hard circuit board is electrically connected with the coil, the hard circuit board is tested firstly, so that the influence of the test work on the coil or the rigid connecting piece is avoided, and the unqualified hard circuit board is convenient to remove; the rigid connecting piece is fixed by being inserted into the insertion hole of the shell assembly and then is electrically connected with the hard circuit board and the coil through two ends of the rigid connecting piece respectively, so that the defect that the flexible connecting piece is required to be adopted for electrical connection is overcome.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

fig. 1 is an exploded perspective view of an active implantable medical device.

Fig. 2 is a schematic perspective view of the exploded view of fig. 1.

Fig. 3 is a schematic perspective view of the frame.

fig. 4 is a schematic perspective view of the frame after being connected with the coil and the rigid connecting member respectively.

fig. 5 is a perspective view of the frame of fig. 3 from a bottom view.

Fig. 6 is a perspective view of the rigid connection member.

Fig. 7 is a perspective view of the frame of fig. 4 from a bottom view.

Fig. 8 is an enlarged view of the area a in fig. 7.

Fig. 9 is an exploded perspective view of the housing assembly.

Figure 10 is a front view of a rigid connection unit of an embodiment.

Fig. 11 is a perspective view of the rigid connector of fig. 10.

Fig. 12 is a schematic view of the connection structure of the rigid connection member and the frame shown in fig. 10.

fig. 13 is an enlarged view of the region B in fig. 12.

figure 14 is a front view of another embodiment rigid connection unit.

Fig. 15 is a perspective view of the rigid connector of fig. 14.

Fig. 16 is a schematic view of the connection structure of the rigid connection member and the frame shown in fig. 14.

Fig. 17 is an enlarged view of the region C in fig. 16.

FIG. 18 is a schematic view of the connection structure of the rigid connection member and the frame according to an embodiment.

Fig. 19 is a bottom perspective view of fig. 18.

Description of reference numerals:

1. A first accommodating groove; 2. a second accommodating groove; 3. a hard circuit board; 4. a coil; 5. a rigid connection; 6. an insertion hole; 7. a first connection section; 8. bending the section; 9. a second connection section; 10. an upper cover; 11. a frame; 12. a lower cover; 13. connecting holes; 14. positioning blocks; 15. a jacket; 16. a liner; 17. buckling; 18. a first card hole; 19. a second card hole; 20. a battery accommodating hole; 21. a battery; 22. a partition plate; 23. a positioning column; 24. a first locating flange; 25. a second locating flange; 26. a through-hole column; 27. an elastic connecting piece.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

as shown in fig. 1 and 9, one embodiment of a coil bracket assembly for an active implantable medical device includes: the frame 11, the upper cover 10 and the lower cover 12, wherein the lower cover 12 comprises an outer sleeve 15 and an inner lining 16 which are detachably connected, and the outer sleeve 15 and the inner lining 16 are fixedly connected through adhesive bonding.

The upper cover 10 has a recess for receiving the frame 11 and is detachably and fixedly coupled to an outer wall of the frame 11.

The lower cover 12 with the butt joint of upper cover 10 lock, and with frame 11 passes through joint fixed connection, wherein, the overcoat 15 of lower cover 12 with the butt joint of upper cover 10 lock, the inside lining 16 detachably fixed connection of lower cover 12 in the overcoat 15, be used for the joint frame 11. The upper cover sets up and is used for holding the second of coil and hold the hole side at being located of frame, can seal the coil in the second holds downthehole through upper cover and frame to guarantee that the circuit board does not expose. The lower cover sets up the first hole side that holds that is used for holding rigid connection spare that is located of frame, can seal the hard circuit board in first holding through lower cover and frame in to guarantee that the circuit board does not expose, and, upper cover and lower cover lock dock the back, and its whole appearance is flat semi-circular, owing to have the radian, consequently can be more convenient implant internal. The lower cover is formed by combining the outer sleeve and the lining, the outer sleeve is used for being in butt joint with the upper cover in a buckling mode, and the lining is used for being connected with the frame in a clamping mode, so that the coil bracket assembly is guaranteed to be arc-shaped in appearance, and the manufacturing difficulty of integrally manufacturing the lower cover can be reduced.

The buckle setting that will be used for joint to connect frame and lower cover is on the frame, and is downthehole through inserting the first card that sets up on the inside lining of lower cover with the buckle, accomplishes the combination in buckle and first card hole, and at this moment, the overcoat and the upper cover lock of lower cover are closed the butt joint and are accomplished to the appearance that makes coil bracket assembly constitutes the arc structure of being convenient for implant.

as shown in fig. 3 and 5, the frame 11 includes: the circuit board assembly comprises a first accommodating groove 1, a second accommodating groove 2 and a connecting hole 13, wherein the first accommodating groove 1 is positioned on one surface of a frame 11 and is used for accommodating a hard circuit board 3; the second accommodating groove 2 is positioned on the other side of the frame 11 opposite to the first accommodating groove 1 and is used for accommodating the coil 4; the connecting hole 13 penetrates through the frame 11 and is used for penetrating through the rigid connecting piece 5, so that the rigid connecting piece 5 is electrically connected with the hard circuit board 3 and the coil 4 respectively. Hard circuit board and coil are fixed respectively through the tow sides of frame, and be equipped with the connecting hole on the frame, be used for passing rigid connection spare, fix rigid connection spare, make rigid connection spare's both ends can be convenient for respectively with hard circuit board and coil electricity are connected, thereby avoided adopting flexible connectors to carry out the drawback of electricity connection with hard circuit board and coil in the past, make hard circuit board and coil after connecting be convenient for dismouting many times, during the dismouting, the higher hard circuit board of cost 3, coil 4 and battery are difficult to damage, but form the lower frame 11 of this cost and change wholly, thereby make the cost reduction of dismouting.

The frame 11 further includes a battery receiving hole 20, and the battery receiving hole 20 is provided at a middle portion of the frame 11 for passing a battery 21 of an active implant medical device. After passing through the battery accommodating hole, the battery 21 is placed on the hard circuit board 3, so that the battery is accommodated in the coil bracket assembly better, the occupied space of the battery is reduced, and the coil bracket assembly is smaller.

As shown in fig. 3, the second receiving groove 2 of the frame 11 is divided into two circles by a partition 22 for receiving the first coil and the second coil, respectively. The first coil and the second coil are not connected with each other, and are fixed in the second accommodating groove together, so that the volume of the coil bracket assembly can be reduced.

As shown in fig. 5, a positioning column 23 is disposed in the first accommodating groove 1 of the frame 11, and the positioning column 23 is used for positioning the hard circuit board 3 through the hard circuit board. The first accommodating groove 1 side of the frame 11 is further provided with a buckle 17 extending towards the lower cover 12, and the inner liner 16 of the lower cover 12 is provided with a first clamping hole 18 for clamping and matching with the buckle 17. The frame can pass through the hard circuit board through the reference column, fixes a position hard circuit board, guarantees that the mounted position of hard circuit board is accurate.

as shown in fig. 7 and 8, a rigid connecting member 5 positioning structure is provided on the frame 11 on a side of the connecting hole 13 close to the first receiving groove 1, and the positioning structure fixes the direction of the rigid connecting member 5 by clearance fit. The positioning structure comprises two positioning blocks 14, each of the two positioning blocks 14 is of a quarter-cylinder structure, the two positioning blocks 14 are separately arranged in two adjacent quadrants at the periphery of the connecting hole 13, and a gap for accommodating the rigid connecting piece 5 is formed between the two positioning blocks 14. The positioning structure on the frame is used for fixing the rigid connecting piece, avoiding the random movement of the rigid connecting piece, ensuring the accuracy of the connecting position of the rigid connecting piece, and performing clearance fit on the rigid connecting piece through a clearance between the two positioning blocks, thereby limiting the random rotation of the rigid connecting piece and ensuring the uniform direction of the rigid connecting piece.

Principle of operation

fixing the coil 4 in the second accommodating groove 2 above the frame 11, then detachably embedding the frame 11 in the upper cover 10 for fixation, detachably embedding the lining 16 of the lower cover 12 in the outer sleeve 15, and then inserting the lining into the outer sleeve 15 of the lower cover 12 through the inward recessed step at the edge of the upper cover 10 to complete the buckling and butt joint of the upper cover 10 and the lower cover 12; when the hard circuit board 3 is installed, the lower cover 12 is detached, the rigid connecting piece 5 is inserted into the connecting hole 13 of the frame 11, the upper end of the rigid connecting piece 5 is electrically connected with the coil 4 through welding, then the hard circuit board 3 is sleeved in the positioning column 23 of the upper cover 10, the lower end of the rigid connecting piece 5 penetrates through the inserting hole 6 of the hard circuit board 3, then the rigid connecting piece 5 is electrically connected with the hard circuit board 3 through welding, finally the lower cover 12 is buckled and butted on the upper cover 10, and the upper cover 10 and the lower cover 12 are clamped through the step on the upper cover 10.

Example 2

As shown in FIG. 1, an embodiment of an actively implanted medical device includes: a coil carrier assembly, a hard-wired board 3, a coil 4, a rigid connector 5 and a battery 21. Wherein the coil cradle assembly is adapted to house the hard-wired board 3, coil 4, rigid connection 5 and battery 21.

The coil bracket assembly, which adopts the coil bracket assembly described in embodiment 1, has two detachable layers, wherein a first accommodating groove 1 for accommodating a hard circuit board 3 is arranged in the first layer, and a second accommodating groove 2 for accommodating a coil 4 is arranged in the second layer. Specifically, as shown in fig. 9, the coil bracket assembly includes: an upper cover 10, a frame 11 and a lower cover 12. The upper cover 10 is provided with a groove for accommodating a frame 11 and is detachably and fixedly connected with the outer wall of the frame 11; the frame 11 is fixedly connected between the upper cover 10 and the lower cover 12; lower cover 12 with upper cover 10 lock butt joint, and with frame 11 passes through joint fixed connection, lower cover 12 includes: overcoat 15 and inside lining 16, overcoat 15 with upper cover 10 lock butt joint, inside lining 16 detachably fixed connection be in the overcoat 15, be used for the joint frame 11. A buckle 17 extending towards the lower cover 12 is arranged on the first accommodating groove 1 side of the frame 11, and a first clamping hole 18 for clamping and matching with the buckle 17 is formed in the liner 16 of the lower cover 12; the edge of the hard circuit board 3 is provided with a second clamping hole 19 which is used for being matched with the first clamping hole 18 and enabling the buckle 17 of the frame 11 to be clamped into the first clamping hole 18, and the first clamping hole 18 and the second clamping hole 19 form a clamping groove structure.

As shown in fig. 7 and 8, a rigid connecting member 5 positioning structure is disposed on one side of the frame 11, which is close to the first accommodating groove 1, of the connecting hole 13, the positioning structure fixes the direction of the rigid connecting member 5 through clearance fit, and includes two positioning blocks 14, each of the two positioning blocks 14 is of a quarter-cylinder structure, and is separately disposed in two adjacent quadrants at the periphery of the connecting hole 13, and a clearance for accommodating the rigid connecting member 5 is disposed between the two positioning blocks 14

As shown in fig. 2, the coil bracket assembly is of a flat semicircular structure after being buckled, and round corners are arranged at all sides of the coil bracket assembly so as to be conveniently implanted into a body.

the hard circuit board 3 is fixed in the first accommodating groove 1 of the coil bracket assembly, the battery 21 is connected to the hard circuit board 3, and the battery 21 penetrates through the battery accommodating hole 20 of the frame 11 of the coil bracket assembly. The hard circuit board 3 has an insertion hole 6 for inserting the rigid connector 5.

As shown in fig. 3 and 4, the coil 4 is fixed in the second receiving groove 2 of the coil bracket assembly, and the coil 4 includes a first coil and a second coil separated by a partition 22 in the second receiving groove 2.

the rigid connecting piece 5 is fixed between the first layer and the second layer of the coil bracket assembly, and two ends of the rigid connecting piece are respectively electrically connected with the coil 4 and the hard circuit board 3.

as shown in fig. 6, the rigid connection member 5 includes: a first connecting section 7, a bent section 8 and a second connecting section 9, wherein the first connecting section 7 is located at one end, is a straight section, is fixed by the insertion hole 6 of the hard circuit board 3 inserted into the first layer of the coil bracket assembly, and is electrically connected with the hard circuit board 3; the second connecting section 9 is located at the other end opposite to the first connecting section 7, is a straight section, is fixed by inserting the coil bracket assembly, penetrates through the coil bracket assembly, extends into the second layer of the coil bracket assembly, and is used for being electrically connected with the coil 4; the bending section 8 is located between the first connecting section 7 and the second connecting section 9 and is of a bending structure.

Example 3

The present embodiment provides a rigid connector of an active implant medical device for electrically connecting a hard circuit board and a coil in the active implant medical device, as shown in fig. 10 and 11, including: a first connecting section 7 and a second connecting section 9.

the first connection section 7 is located at the lower end, is a straight section, is fixed by the insertion hole 6 of the hard circuit board 3 inserted into the active implant medical device, and is electrically connected to the hard circuit board 3.

The second connecting section 9 is located at the other end with respect to the first connecting section 7: an upper end, which is a straight section, as shown in fig. 12, 13, through which the second connection section 9 is fixed by a coil carrier assembly inserted into the active implant medical device and extends into the second layer of the coil carrier assembly for electrical connection with the coil 4 accommodated in the second layer; the two ends are straight sections and can be conveniently and respectively electrically connected with the hard circuit board and the coil, thereby avoiding the defect that the hard circuit board and the coil are electrically connected by adopting a flexible connecting piece in the past, ensuring that the connected hard circuit board and the coil can be conveniently disassembled and assembled for many times and the whole device is not easy to be damaged

the rigid connecting piece is provided with a positioning flange between the first connecting section 7 and the second connecting section 9, the end part of the positioning flange can accurately position the rigid connecting piece in the axial direction, and the outer diameter of the positioning flange is in clearance fit with the hole so that the rigid connecting piece can accurately position the rigid connecting piece in the radial direction. The specific locating flange includes: a first positioning flange 24 and a second positioning flange 25; the first positioning flange 24 is located between the first connecting section 7 and the second connecting section 9, has an outer diameter larger than the connecting hole 13 of the coil bracket assembly, and has an end portion for being matched with the connecting hole 13 of the coil bracket assembly, the end portion is a plane, and the end portion for axial positioning and the outer diameter for radial positioning of the positioning flange are respectively arranged on two structural members, so that when one structural member is machined, only one size limitation can be considered, and the machining and production of the rigid connecting member are facilitated. In addition, as an alternative embodiment, the end portion may also be a beveled or curved surface.

the second positioning flange 25 is located between the first connecting section 7 and the second connecting section 9 and close to one side of the first positioning flange 24 facing the second connecting section 9, the outer diameter of the second positioning flange 25 is in clearance fit with the connecting hole 13 of the coil bracket assembly, and the radial movement of the rigid connecting piece is limited through the clearance fit.

As shown in fig. 12 and 13, the rigid connector connection structure of the rigid connector of the active implant medical device includes: the positioning structure and the through hole column 26 are matched with each other to connect the rigid connecting piece, so that the accuracy of the connecting position of the rigid connecting piece can be ensured.

The positioning structure is arranged in a through hole column 26 on the connecting hole 13 of the coil bracket assembly, and the rigid connecting piece 5 is fixed by clearance fit between the size of the inner diameter of the through hole column 26 and the outer diameter of the rigid connecting piece 5.

The through hole column 26 is concentrically sleeved on one side of the connecting hole 13 facing the hard circuit board 3 and is used for penetrating through the second connecting section 9 of the rigid connecting piece 5, and the through hole column 26 is provided with a matching end used for matching with the end matched with the connecting hole 13 of the coil bracket component, and the locating flange is used for matching with the connecting hole 13 of the coil bracket component.

Example 4

This embodiment provides a second rigid connector for an active implantable medical device for electrically connecting a hard-wired board and a coil in the active implantable medical device, as shown in fig. 14 and 15, comprising: a first connecting section 7 and a second connecting section 9, the structure and position of the first connecting section 7 and the second connecting section 9 being the same as those of embodiment 3, except that: a positioning flange between said first connecting section 7 and said second connecting section 9.

The positioning flange includes: a first positioning flange 24 and a second positioning flange 25; the first positioning flange 24 is located between the first connecting section 7 and the second connecting section 9, has an outer diameter larger than the connecting hole 13 of the coil bracket assembly, and has an end surface for fitting with an end of the connecting hole 13 by contact; the second positioning flange 25 is located between the first connecting section 7 and the second connecting section 9 and near the side of the first positioning flange 24 facing the first connecting section 7, and the outer diameter of the second positioning flange 25 is clearance-fitted with the insertion hole 6 of the hard circuit board 3.

As shown in fig. 16 and 17, the rigid connector connection structure of the rigid connector of the active implant medical device includes: locating structures and via posts 26.

the positioning structure is arranged on an insertion hole 6 of the hard circuit board 3, and the rigid connecting piece 5 is fixed by clearance fit of the size of the hole diameter and the outer diameter of the rigid connecting piece 5;

The through hole post 26 is concentrically sleeved on one side of the connecting hole 13 facing the hard circuit board 3 and is used for penetrating through the second connecting section 9 of the rigid connecting piece 5, and the positioning flange is used for being matched with the matching end face of the connecting hole 13 of the coil bracket component.

example 5

The present embodiment provides a rigid connector of an active implant medical device for electrically connecting a hard circuit board and a coil in the active implant medical device, as shown in fig. 6, comprising: a first connecting section 7 and a second connecting section 9, the structure and position of the first connecting section 7 and the second connecting section 9 being the same as those of embodiments 3 and 4, except that: be located first linkage segment 7 with bend segment 8 between the second linkage segment 9 is the bend segment in the middle section of rigid connection spare, can cushion the solder joint stress at both ends, improves the firm nature of electricity connection.

The bending section 8 is located between the first connecting section 7 and the second connecting section 9, is of a bending structure, specifically is of a semi-annular structure, is of a semi-annular shape, can be uniformly stressed when buffering stress, and can also be used for axially and radially positioning the rigid connecting piece on the outer wall of the semi-annular shape. In addition, as an alternative embodiment, the bending section 8 may have an arc-shaped structure other than a semi-ring shape.

as shown in fig. 7 and 8, the rigid connector connection structure of the rigid connector of the active implant medical device includes: the positioning structure, the through hole column 26 and the positioning block 14 are matched with each other to connect the rigid connecting piece, so that the accuracy of the connecting position and the correctness of the direction of the rigid connecting piece can be ensured

The positioning structure can be arranged on the connecting hole 13 of the coil bracket component or the inserting hole 6 of the hard circuit board 3, and the rigid connecting piece 5 is fixed by clearance fit of the size of the hole diameter and the outer diameter of the rigid connecting piece 5. In this embodiment, the positioning structure is disposed in a through-hole column 26, and the inner diameter of the through-hole column 26 fixes the rigid connector 5 by clearance fit.

The through hole column 26 is concentrically sleeved on one side of the connecting hole 13 facing the hard circuit board 3, is used for penetrating the second connecting section 9 of the rigid connecting piece 5, and is provided with a matching end matched with the outer wall of the bending section of the rigid connecting piece.

The two positioning blocks 14 are of a quarter-cylinder structure and are separately arranged in two adjacent quadrants at the periphery of the connecting hole 13, a gap for accommodating the rigid connecting piece 5 is formed between the two positioning blocks 14, and the rigid connecting piece is limited in rotation through the gap between the two positioning blocks, so that the random rotation of the rigid connecting piece is limited, and the direction unification of the rigid connecting piece is ensured.

Example 6

This example provides a method of assembling an actively implanted medical device as described in example 2, comprising the steps of:

Fixing the tested hard circuit board 3 in the first accommodating groove 1 of the first layer of the coil bracket assembly;

Inserting a rigid connecting piece 5 into an insertion hole 6 of a coil bracket assembly, and respectively inserting two ends of the rigid connecting piece 5 into a first layer and a second layer of the coil bracket assembly;

Connecting the coil 4 in the second layer of the coil bracket assembly with one end of the rigid connecting piece 5 by welding;

The other end of the rigid connector 5 is connected to the hard-wired board 3 in the first layer of the coil carrier assembly by soldering.

According to the assembling method, before the hard circuit board is electrically connected with the coil, the hard circuit board is tested firstly, so that the influence of the test work on the coil or the rigid connecting piece is avoided, and the unqualified hard circuit board is convenient to remove; the rigid connecting piece is fixed in the inserting hole of the coil bracket assembly and then is electrically connected with the hard circuit board and the coil through two ends of the rigid connecting piece respectively, so that the defect that the flexible connecting piece is required to be adopted for electrical connection is overcome.

example 7

This embodiment provides a flexible connector for an active implantable medical device, which is made of a flexible material, and the flexible connector 27 is connected to two parallel connection holes 13 on the frame 11, as shown in fig. 18.

above the elastic connecting piece 27, there is an elastic deformation section, which has an arc structure formed by bending, and the arc structure is used for connecting with the coil.

After the elastic deformation section forms the arc-shaped structure, a clamping structure is formed by bending, and the clamping structure is used for extending into the lower part of the connecting hole 13 and is clamped on the bottom surface of the frame 11.

The lower part of the elastic connecting piece 27 is provided with a first connecting section which is straightened downwards and is of a vertical structure and used for being inserted into a hard circuit board for connection.

As shown in fig. 19, the elastic connecting member is first elastically deformed to allow the two ends of the elastic connecting member to pass through the corresponding hole sites respectively from the upper side to the lower side of the connecting hole 13, and after the two ends of the elastic connecting member pass through the connecting holes, the elastic connecting member is elastically restored, wherein the shorter end of the elastic connecting member extends downwards out of the frame, and bends under the frame, so that the elastic connecting member is clamped and fixed on the connecting hole.

As for the connection structure of the elastic connection member 27 described in the present embodiment, two connection holes 13 are provided in parallel on the frame 11.

it should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. An active implantable medical device, comprising:

The shell assembly is provided with two detachable layers, wherein a first accommodating groove (1) for accommodating the hard circuit board (3) is formed in the first layer, and a second accommodating groove (2) for accommodating the coil (4) is formed in the second layer;

The hard circuit board (3) is fixed in the first accommodating groove (1) of the shell assembly;

A coil (4) fixed in the second housing groove (2) of the housing assembly;

The rigid connecting piece (5) is fixed on a frame (11) between the first layer and the second layer of the shell assembly, and two ends of the rigid connecting piece are respectively and electrically connected with the coil (4) and the hard circuit board (3); the rigid connecting piece (5) is connected with the frame (11) through a positioning structure.

2. The active implantable medical device according to claim 1, wherein the housing assembly has a connection hole (13) for inserting the rigid connector (5) and is connected to the rigid connector (5) by a snap-fit connection.

3. the active implantable medical device according to claim 2, wherein the rigid connector (5) comprises:

A first connecting section (7) which is a straight section at one end, is fixed by the insertion hole (6) of the hard circuit board (3) inserted into the first layer of the housing assembly, and is electrically connected to the hard circuit board (3);

the second connecting section (9) is positioned at the other end opposite to the first connecting section (7), is a straight section, is fixed by being inserted into the shell assembly, penetrates through the shell assembly, extends into a second layer of the shell assembly, and is used for being electrically connected with the coil (4);

and the bending section (8) is positioned between the first connecting section (7) and the second connecting section (9) and is of a bending structure.

4. The active implantable medical device of any one of claims 1-3, wherein the housing assembly comprises:

the upper cover (10) is provided with a groove for accommodating the frame (11) and is detachably and fixedly connected with the outer wall of the frame (11);

the frame (11) is fixedly connected between the upper cover (10) and the lower cover (12);

The lower cover (12) is buckled and butted with the upper cover (10) and is fixedly connected with the frame (11) through clamping.

5. the active implantable medical device according to claim 4, wherein the frame (11) comprises:

The first accommodating groove (1) is positioned on one surface of the frame (11) and is used for accommodating the hard circuit board (3);

a second housing groove (2) which is located on the other surface of the frame (11) opposite to the first housing groove (1) and is used for housing the coil (4);

And the connecting hole (13) penetrates through the frame (11) and is used for penetrating through the rigid connecting piece (5) so that the rigid connecting piece (5) is electrically connected with the hard circuit board (3) and the coil (4) respectively.

6. The active implantable medical device according to claim 5, characterized in that a positioning structure is provided on the frame (11) on a side of the connection hole (13) close to the first receiving groove (1), the positioning structure fixing the rigid connection member (5) in a circumferential direction by clearance fit.

7. The active implantable medical device of claim 6, wherein the positioning structure comprises:

The positioning blocks (14) are of a quarter-cylinder structure and are separated in two adjacent quadrants at the periphery of the connecting hole (13), and a gap for accommodating the rigid connecting piece (5) is formed between the two positioning blocks (14).

8. The active implantable medical device according to claim 4, wherein the lower cover (12) comprises:

The outer sleeve (15) is buckled and butted with the upper cover (10);

and the lining (16) is detachably and fixedly connected in the outer sleeve (15) and is used for clamping the frame (11).

9. The active implantable medical device according to claim 8, wherein the first receiving groove (1) side of the frame (11) is provided with a snap (17) extending towards the lower cover (12), and the inner liner (16) of the lower cover (12) is provided with a first snap hole (18) for snap-fitting with the snap (17);

the edge of the hard circuit board (3) is provided with a second clamping hole (19) which is used for being matched with the first clamping hole (18) and enabling a buckle (17) of the frame (11) to be clamped into the first clamping hole (18), and the first clamping hole (18) and the second clamping hole (19) form a clamping groove structure.

10. a method of assembling an active implantable medical device, comprising: the method comprises the following steps:

Fixing the tested hard circuit board (3) in a first accommodating groove (1) of a first layer of the shell assembly;

inserting a rigid connecting piece (5) into an insertion hole (6) of the shell assembly, and respectively inserting two ends of the rigid connecting piece (5) into a first layer and a second layer of the shell assembly;

Connecting a coil (4) in a second layer of the shell assembly with one end of a rigid connecting piece (5) by welding;

And connecting the other end of the rigid connecting piece (5) with the hard circuit board (3) in the first layer of the shell component by welding.