Phototherapy device and assembly method for metal implants

Abstract

This invention relates to the field of dental implant technology, and more particularly to a phototherapy device adapted for metal implants and its assembly method. The phototherapy device includes a zirconia shell and an internal light source module, and is widely applicable to metal implants. During operation, the device is fixedly connected to the metal implant via a bottom screw. Because the zirconia shell is translucent, the therapeutic light can penetrate it and act on the treatment area, including the gingiva and superficial bone, to achieve optical treatment of surrounding tissues. Since the device is adapted for metal implants, the installation torque is guaranteed. The diameter of the zirconia shell decreases from top to bottom, and the light source is located at its central height, ensuring that the therapeutic light is directed to the appropriate treatment location without being blocked by the metal implant.

Description

Technical Field

[0001] This invention relates to the field of dental implant technology, and in particular to a phototherapy device adapted to metal implants and its assembly method. Background Technology

[0002] With the improvement of living standards, oral health issues have attracted increasing attention, leading to the rapid development of the dental implant industry. The current dental implant procedure typically involves three steps: 1. Surgical insertion of the metal implant; 2. Installation of a temporary abutment; 3. Replacement of the permanent abutment with the crown. This procedure is complex and cumbersome, time-consuming, and some patients face implant failure due to problems such as inflammation around the implant or implant loosening.

[0003] Therefore, a technical solution that can reduce the risks of dental implantation, shorten the implantation period, and provide targeted treatment when inflammation occurs is necessary and urgent.

[0004] Existing technology provides phototherapy devices that are installed on translucent dental metal implants. These devices include a top-mounted light-emitting unit and several base-mounted light-emitting units, which emit therapeutic light. Because the dental metal implant is translucent, the light emitted by the device can reach the area surrounding the implant, thus treating the surrounding tissues. However, the base of this type of device is parallel to a horizontal plane, requiring the use of zirconia implants. However, zirconia implants have inherent limitations and are not suitable for all patients. Furthermore, when a patient is only suitable for metal implants, the light emitted by the base-mounted light-emitting units may not reach the area requiring treatment after installation.

[0005] Therefore, there is an urgent need for a phototherapy device and assembly method adapted to metal implants to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a phototherapy device and assembly method adapted to metal implants, which can be installed in the metal implant and irradiate the area requiring phototherapy to achieve the purpose of optical treatment of surrounding tissues.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A phototherapy device adapted for metal implants, installed on the metal implant, including:

[0009] A zirconia shell, the diameter of which decreases from top to bottom, and the zirconia shell having mounting holes;

[0010] An internal light source module is disposed within the mounting hole. The internal light source module includes an internal circuit board, a top cover, and a bottom screw. The top cover is fixedly connected to the bottom screw, and the internal circuit board is disposed within the area enclosed by the top cover and the bottom screw. A capacitor and multiple light emitters are disposed on one side of the internal circuit board, and an inductor coil is disposed on the other side. One end of the bottom screw passes through the mounting hole and is fixedly connected to the metal implant. The bottom screw is provided with a mounting groove, a light-transmitting hole, and a receiving groove. The internal circuit board is at least partially disposed within the mounting groove. The light-transmitting hole and the receiving groove are both disposed at the bottom of the mounting groove. The capacitor can be accommodated within the receiving groove, and the light emitters are disposed within the light-transmitting hole.

[0011] As a preferred technical solution of the phototherapy device adapted to the above-mentioned metal implant, the zirconium oxide shell includes a first connecting unit, a second connecting unit and a transition unit. The first connecting unit can be inserted into the cavity formed by the metal implant. The two ends of the transition unit are respectively connected to the first connecting unit and the second connecting unit. The diameter of the transition unit gradually decreases from the top cover towards the metal implant.

[0012] As a preferred technical solution for the phototherapy device adapted to the aforementioned metal implant, the maximum diameter of the first connecting unit is smaller than the minimum diameter of the transition unit.

[0013] As a preferred technical solution of the phototherapy device adapted to the above-mentioned metal implant, the outer contour of the transition unit includes a first curved segment and a second curved segment, the first curved segment and the second curved segment are smoothly connected, and the arc center of the first curved segment points into the inside of the zirconia shell, and the arc center of the second curved segment points into the outside of the zirconia shell.

[0014] As a preferred technical solution of the phototherapy device adapted to the above-mentioned metal implant, the phototherapy device adapted to the metal implant further includes an insulating structure, which is disposed in the receiving groove and can separate the groove wall of the receiving groove from the capacitor.

[0015] As a preferred technical solution of the phototherapy device adapted to the above-mentioned metal implant, the insulating structure includes an insulating sleeve, which is embedded in the receiving groove;

[0016] Alternatively, the insulating structure may include an insulating film coated within the receiving groove.

[0017] As a preferred technical solution of the phototherapy device adapted to the above-mentioned metal implant, the bottom screw is provided with a plurality of baffles at one end near the top cover, the top cover is provided with a plurality of grooves, the plurality of baffles are provided in a one-to-one correspondence with the plurality of grooves, and the baffles extend into the grooves.

[0018] As a preferred technical solution of the phototherapy device adapted to the above-mentioned metal implant, a first adhesive groove is provided at the end of the bottom screw near the top cover, and a second adhesive groove is provided at the end of the top cover facing the bottom screw, wherein the first adhesive groove and the second adhesive groove are in communication.

[0019] As a preferred technical solution for the phototherapy device adapted to the above-mentioned metal implant, the upper cover is bonded, press-fitted, or welded to the bottom screw.

[0020] The present invention also provides an assembly method for assembling a phototherapy device adapted to a metal implant as described in any of the above embodiments, comprising the following steps:

[0021] The insulating structure is installed inside the receiving groove;

[0022] After aligning the light-emitting element with the light-transmitting hole and the capacitor with the receiving groove, place the internal circuit board in the mounting groove;

[0023] The top cover is fitted with the bottom screws and then sealed with adhesive to form the internal light source module.

[0024] The zirconia shell is fitted onto the internal light source module and then glued on.

[0025] Beneficial effects of this invention:

[0026] This phototherapy device, adapted for metal implants, is fixed to the implant via a bottom screw. Because the zirconia shell is translucent, therapeutic light can penetrate it and reach the treatment area, including the gums and superficial bone, to achieve optical therapy of surrounding tissues. The device's compatibility with metal implants ensures sufficient installation torque. The diameter of the zirconia shell decreases from top to bottom, and the light-emitting point is located at its midpoint, ensuring the therapeutic light is directed to the appropriate treatment location without being blocked by the metal implant. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the assembly of a phototherapy device adapted to a metal implant and a metal implant provided in an embodiment of the present invention;

[0029] Figure 2 An exploded view from the first perspective of the phototherapy device adapted to metal implants provided in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal circuit board structure provided in an embodiment of the present invention;

[0031] Figure 4 An exploded view from a second perspective of the phototherapy device adapted to metal implants provided in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the bottom screw provided in an embodiment of the present invention.

[0033] In the picture:

[0034] 1. Zirconia shell; 11. First connecting unit; 12. Second connecting unit; 13. Transition unit; 131. First curved segment; 132. Second curved segment; 2. Internal light source module; 21. Internal circuit board; 211. Capacitor; 212. Light emitter; 213. Inductor coil; 22. Top cover; 221. Groove; 222. Second adhesive groove; 223. Tightening groove; 23. Bottom screw; 231. Mounting groove; 232. Light transmission hole; 233. Receiving groove; 234. Stand; 235. First adhesive groove; 3. Insulating structure; 10. Metal implant. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0039] The prior art provides a phototherapy device, the bottom surface of which is parallel to the horizontal plane and requires the use of zirconia metal implants. However, due to the inherent limitations of zirconia metal implants, they are not suitable for all patients. When a patient is only suitable for metal implants, the metal implants will partially block the light, which will cause the light emitted by the base light-emitting unit to not shine on the area that needs treatment after installation.

[0040] This embodiment provides a phototherapy device adapted to metal implants to solve the above-mentioned problems.

[0041] like Figure 1-5 As shown, the phototherapy device adapted to the metal implant includes an internal light source module 2 and a zirconia shell 1. The metal implant 10 is fixed in the oral cavity, providing support for the phototherapy unit.

[0042] Specifically, such as Figure 2-5As shown, the zirconia shell 1 has mounting holes, and the internal light source module 2 is disposed within the mounting holes. The internal light source module 2 includes an internal circuit board 21, an upper cover 22, and a bottom screw 23. The upper cover 22 is fixedly connected to the bottom screw 23, and the internal circuit board 21 is disposed within the area enclosed by the upper cover 22 and the bottom screw 23. A capacitor 211 and multiple light emitters 212 are disposed on one side of the internal circuit board 21, forming a power receiving circuit through the connection of the internal circuit board 21. An inductor coil 213 is disposed on the other side of the internal circuit board 21, located outside the phototherapy device. The magnetic coil provides power to the light emitter 212 wirelessly. One end of the bottom screw 23 passes through the mounting hole and is fixedly connected to the metal implant 10. The bottom screw 23 is provided with a light-transmitting hole 232, a receiving groove 233 and a mounting groove 231. The internal circuit board 21 is set in the mounting groove 231. The light-transmitting hole 232 and the receiving groove 233 are both set at the bottom of the mounting groove 231. The capacitor 211 can be accommodated in the receiving groove 233. The light emitter 212 is set in the light-transmitting hole 232. The light emitted by the light emitter 212 can be diffused outward through the light-transmitting hole 232.

[0043] Due to the zirconia shell 1, the bottom screw 23 passes through the zirconia shell 1 and is fixedly connected to the metal implant 10. The zirconia shell 1 is translucent, allowing therapeutic light to penetrate and act on the treatment area, including the gingiva and superficial bone. Furthermore, the zirconia shell 1 can refract the therapeutic light, so when it is implanted within the gingiva, the light can pass through various points on the shell to act on the gingiva and the gingival-bone junction, thus enabling the metal implant 10 to be used for phototherapy. In addition, this phototherapy device adapted for metal implants is suitable for titanium alloy metal implants, ensuring the correct installation torque.

[0044] Specifically, the zirconia shell 1 includes a first connecting unit 11, a second connecting unit 12, and a transition unit 13. The first connecting unit 11 can be inserted into the cavity formed by the metal implant 10 and is fixedly connected to the metal implant 10. Specifically, the metal implant 10 has internal threads, and the first connecting unit 11 is threadedly connected to the metal implant 10. The two ends of the transition unit 13 are respectively connected to the first connecting unit 11 and the second connecting unit 12, and the diameter of the transition unit 13 gradually decreases from the upper cover 22 towards the metal implant 10.

[0045] It should be noted that in this embodiment, the maximum diameter of the first connecting unit 11 is smaller than the minimum diameter of the transition unit 13. The minimum diameter of the transition unit 13 is the same as the outer diameter of the metal implant 10, which ensures a smooth transition at the connection point after the zirconium oxide shell 1 and the metal implant 10 are fixedly connected.

[0046] In this embodiment, as Figure 4As shown, the outer contour of the transition unit 13 includes a first curved segment 131 and a second curved segment 132. The first curved segment 131 and the second curved segment 132 are smoothly connected, with the center of the arc of the first curved segment 131 pointing inward to the inside of the zirconia shell 1, and the center of the arc of the second curved segment 132 pointing outward to the outside of the zirconia shell 1. The smooth connection of the first curved segment 131 and the second curved segment 132 avoids bacterial growth at the perforation site of the phototherapy device adapted to the metal implant, preventing gingivitis. Since the diameter of the transition unit 13 gradually decreases from the top cover 22 towards the metal implant 10, and the light-emitting point is located at its middle height, the treatment light can be irradiated to the corresponding treatment position without being blocked by the metal implant. It also allows the perforation site to be irradiated by the treatment light, achieving the purpose of treatment.

[0047] In this embodiment, reference continues to be made to Figure 4 The phototherapy device adapted for metal implants also includes an insulating structure 3, which is disposed within the receiving groove 233 and separates the groove wall from the capacitor 211. The insulating structure 3 prevents contact between the capacitor 211 and the bottom screw 23, thus preventing a short circuit in the internal light source module 2 and its malfunction. Furthermore, the outer shell is a zirconium oxide shell 1, which, compared to existing technologies, increases the torque capacity of the shell and provides superior torsional resistance during installation and use.

[0048] Optionally, the light source 212 can be an LED or other small-sized light source, and its emission wavelength can be determined according to requirements.

[0049] The size of the light-transmitting hole 232 is larger than the size of the light-emitting body 212. When installing the internal light source module 2, it is necessary to ensure that each light-emitting body 212 is embedded in the light-transmitting hole 232 so that the internal light source module 2 is tightly connected to the mounting groove 231. The light-emitting body 212 is used to emit light with therapeutic effect.

[0050] During operation, the external electromagnetic coil can work together with the inductor coil 213 to power the internal light source module 2, and the external electromagnetic coil can power the light-emitting body 212, enabling multiple light-emitting bodies 212 to emit light, thereby achieving the effect of phototherapy.

[0051] The internal light source module 2 is assembled in a separate manner, and the preferred material is PEEK or other dental materials. It is glued or fixed by mechanical means.

[0052] The outer contour of the internal light source module 2 is slightly smaller than the inner contour of the zirconia shell 1. The adhesive used to bond the internal light source module 2 to the zirconia shell 1 is a transparent adhesive, which does not hinder the outward transmission of light after curing.

[0053] Preferably, in this embodiment, the insulating structure 3 includes an insulating sleeve or an insulating film, with the insulating sleeve embedded in the receiving groove 233. The insulating sleeve being embedded in the receiving groove 233 ensures that the insulating sleeve is fixed relative to the capacitor 211, and the insulating film being coated inside the receiving groove 233 prevents loosening after implantation into the oral cavity.

[0054] Furthermore, in this embodiment, a plurality of light-emitting elements 212 are circumferentially disposed on one side of the internal circuit board 21, and a capacitor 211 is disposed in the area surrounded by the plurality of light-emitting elements 212.

[0055] like Figure 4 As shown, the bottom screw 23 has multiple baffles 234 near the top cover 22, and the top cover 22 has multiple grooves 221. The baffles 234 are arranged one-to-one with the grooves 221, and the baffles 234 extend into the grooves 221. The baffles 234 enter the grooves 221 and are then bonded. When the top cover 22 is screwed on, the resistance from the bottom screw 23 will cause the bottom screw 23 to rotate, thereby achieving the purpose of screwing the bottom screw 23 into the metal implant 10.

[0056] Furthermore, such as Figure 5 As shown, to firmly bond the bottom screw 23 to the top cover 22, a first adhesive groove 235 is provided at the end of the bottom screw 23 near the top cover 22, and a second adhesive groove 222 is provided at the end of the top cover 22 facing the bottom screw 23. The first adhesive groove 235 and the second adhesive groove 222 are connected. During assembly, dental adhesive is squeezed into the first adhesive groove 235 and the second adhesive groove 222. Then, the groove 221 of the top cover 22 is aligned with the retainer 234, so that the retainer 234 of the bottom screw 23 is inserted into the groove 221. The adhesive then bonds the bottom screw 23 and the top cover 22 together. Bonding the top cover 22 and the bottom screw 23 with adhesive prevents them from loosening during use.

[0057] Of course, in other embodiments, the upper cover 22 and the bottom screw 23 can also be interference-fitted to achieve the purpose of assembling the upper cover 22 and the bottom screw 23. Of course, it can also be fixed by other mechanical means.

[0058] In this embodiment, both the bottom screw 23 and the top cover 22 are made of titanium alloy.

[0059] To facilitate the screwing of the internal light source module 2 into the zirconia housing 1, a screwing groove 223 is provided on the top of the upper cover 22. The screwing groove 223 allows a screwing tool to be inserted into the zirconia housing 1 and rotate it. In use, a special tool is inserted into the screwing groove 223 to transmit torque downwards, firmly securing the internal light source module 2 inside the metal implant 10. For example, the screwing groove 223 can be an internal hexagonal groove or a cross-shaped groove.

[0060] The internal circuit board 21 is placed in the mounting groove 231 formed by the bottom screw 23. The internal circuitry may separate from the light-transmitting hole 232 as the patient moves, resulting in poor treatment effectiveness. Therefore, in some embodiments, the internal light source module 2 also includes a clamping structure, with its two ends abutting against the inductor coil 213 and the upper cover 22, respectively. Specifically, the clamping structure includes a spring. The spring is specifically a compression spring, with one end abutting against the inductor coil 213 and the other end abutting against the upper cover 22. The clamping structure ensures that the internal circuit board 21 remains clamped, preventing movement of the internal circuitry within the light-transmitting hole 232 regardless of whether the patient is running or jumping.

[0061] The metal implant 10 is a bone-level metal implant, which is completely implanted into the human jawbone during use. The phototherapy device that adapts to the metal implant is tightly connected to the metal implant 10 via a threaded connection. The smooth arc surface at the lower end of the metal implant 10 contacts the soft and hard tissues surrounding the metal implant 10 in the human oral cavity. The metal implant 10 is made of titanium alloy.

[0062] This embodiment also provides an assembly method for a phototherapy device adapted to metal implants, used to assemble the phototherapy device adapted to metal implants in this embodiment of the invention. The assembly method includes the following steps:

[0063] The insulating structure 3 is installed in the receiving groove 233;

[0064] After aligning the light-emitting element 212 with the light-transmitting hole 232 and the capacitor 211 with the receiving groove 233, place the internal circuit board 21 into the mounting groove 231.

[0065] The upper cover 22 is fitted with the bottom screw 23 and then sealed with glue to form the internal light source module 2.

[0066] The zirconia shell 1 is fitted onto the internal light source module 2 and glued together.

[0067] When bonding the top cover 22 to the bottom screw 23, dental adhesive is applied to the first adhesive groove 235 and the second adhesive groove 222 to facilitate the connection between the top cover 22 and the bottom screw 23. To make the bonding between the top cover 22 and the bottom screw 23 more secure, adhesive is applied to the groove wall of the groove 221 and the side wall of the retainer 234 to achieve the purpose of bonding between the groove 221 and the retainer 234.

[0068] Dental adhesives include transparent, liquid dental adhesives that are cured using ultraviolet light after being applied as a sealant.

[0069] Since the phototherapy device for adapting metal implants described above is included, the assembly method of this embodiment of the invention has all the advantages and beneficial effects of the above embodiments, which will not be repeated here.

[0070] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A phototherapy device adapted for metal implants, characterized in that, Installed on metal implants, including: Zirconia shell (1), the diameter of which decreases from top to bottom, and the zirconia shell (1) has mounting holes; An internal light source module (2) is disposed within the mounting hole. The internal light source module (2) includes an internal circuit board (21), a top cover (22), and a bottom screw (23). The top cover (22) is fixedly connected to the bottom screw (23), and the internal circuit board (21) is disposed within the area enclosed by the top cover (22) and the bottom screw (23). A capacitor (211) and multiple light emitters (212) are disposed on one side of the internal circuit board (21), and an inductor coil (213) is disposed on the other side of the internal circuit board (21). The bottom screw (23) is fixedly connected to the metal implant (10) through the mounting hole at one end. The bottom screw (23) is provided with a mounting groove (231), a light-transmitting hole (232) and a receiving groove (233). The internal circuit board (21) is at least partially disposed in the mounting groove (231). The light-transmitting hole (232) and the receiving groove (233) are both disposed at the bottom of the mounting groove (231). The capacitor (211) can be accommodated in the receiving groove (233). The light-emitting element (212) is disposed in the light-transmitting hole (232). The zirconium oxide shell (1) includes a first connecting unit (11), a second connecting unit (12), and a transition unit (13). The first connecting unit (11) can be inserted into the cavity formed by the metal implant (10). The two ends of the transition unit (13) are connected to the first connecting unit (11) and the second connecting unit (12) respectively. The diameter of the transition unit (13) gradually decreases from the top cover (22) toward the metal implant (10). The maximum diameter of the first connecting unit (11) is smaller than the minimum diameter of the transition unit (13).

2. The phototherapy device for adapting metal implants according to claim 1, characterized in that, The outer contour of the transition unit (13) includes a first curve segment (131) and a second curve segment (132). The first curve segment (131) and the second curve segment (132) are smoothly connected, and the arc center of the first curve segment (131) points into the zirconium oxide shell (1), while the arc center of the second curve segment (132) points out of the zirconium oxide shell (1).

3. The phototherapy device for adapting metal implants according to claim 1, characterized in that, The phototherapy device for adapting metal implants also includes an insulating structure (3), which is disposed in the receiving groove (233) and can separate the groove wall of the receiving groove (233) from the capacitor (211).

4. The phototherapy device for adapting metal implants according to claim 3, characterized in that, The insulating structure (3) includes an insulating sleeve, which is embedded in the receiving groove (233); Alternatively, the insulating structure (3) includes an insulating film coated within the receiving groove (233).

5. The phototherapy device for adapting metal implants according to claim 1, characterized in that, The bottom screw (23) is provided with a plurality of baffles (234) at one end near the top cover (22), and the top cover (22) is provided with a plurality of grooves (221). The plurality of baffles (234) are provided in a one-to-one correspondence with the plurality of grooves (221), and the baffles (234) extend into the grooves (221).

6. The phototherapy device for adapting metal implants according to claim 1, characterized in that, The bottom screw (23) is provided with a first adhesive groove (235) at one end near the top cover (22), and the top cover (22) is provided with a second adhesive groove (222) at one end facing the bottom screw (23). The first adhesive groove (235) and the second adhesive groove (222) are in communication.

7. The phototherapy device for adapting metal implants according to claim 1, characterized in that, The top cover (22) is bonded, press-fitted, or welded to the bottom screw (23).

8. An assembly method, characterized in that, The phototherapy device for assembling the adaptable metal implant according to any one of claims 1-7 comprises the following steps: The insulating structure (3) is installed in the receiving groove (233); After aligning the light-emitting element (212) with the light-transmitting hole (232) and the capacitor (211) with the receiving groove (233), the internal circuit board (21) is placed in the mounting groove (231); The top cover (22) is fitted with the bottom screw (23) and then sealed with glue to form the internal light source module (2); The zirconia shell (1) is fitted onto the internal light source module (2) and glued together.

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