Fitting device for a pulse generator and pulse generator

Abstract

The present application relates to the technical field of medical devices, in particular to a matching device for a pulse generator and the pulse generator. The matching device comprises a pulse signal transmission member, a locking structure and a positioning structure. The locking structure comprises a locking member and a fastener. The positioning structure comprises a positioning member and a positioning groove capable of being engaged and connected. One of the positioning member and the positioning groove is arranged on the pulse signal transmission member, and the other is arranged on the locking structure. When the positioning member and the positioning groove are engaged and connected, the pulse signal transmission member reaches the set position. The fastener is used to fix the pulse signal transmission member at the set position. The matching device for the pulse generator can feed back the insertion condition of the pulse signal transmission member to the doctor through tactile feeling or sound during the operation of the patient, reduce the pain of the patient during the operation, and save the medical resources of the operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a matching device for a pulse generator and the pulse generator. BACKGROUND

[0002] The implantable pulse generator kit is a class III medical device, including common brain pacemakers, defibrillators, and neuroregulatory stimulators. The pulse generator is a key component. The pulse generator cover is an interface for the pulse generator circuit to transmit signals to the outside. The cover has a structure that can insert and fix the pulse signal transmission member, and then transmit the stimulation signal to the patient's stimulation target through the pulse signal transmission member.

[0003] During the surgical implantation of the pulse generator, the following problems exist in the operation of inserting the pulse signal transmission member into the cover:

[0004] Although the cover is transparent, due to the blocking of the sealing ring part and the connector, and the problem of material light transmittance, it is difficult for the doctor to confirm whether the pulse signal transmission member is completely inserted in place during the insertion of the pulse signal transmission member. If the doctor does not insert the pulse signal transmission member to the bottom, the doctor's telemetry may pass, but after the product is implanted in the human body, with the accumulation of time and patient movement, the pulse signal transmission member slowly shifts, resulting in a final poor contact. At this time, the product needs to be re-inserted into the pulse signal transmission member during surgery, which increases the patient's surgical pain and consumes surgical medical resources. SUMMARY

[0005] The purpose of the present application is to provide a matching device for a pulse generator and a pulse generator to solve the technical problem that the pulse signal transmission member cannot be inserted in place in the prior art.

[0006] The present application provides a matching device for a pulse generator, comprising a pulse signal transmission member, a locking structure and a positioning structure;

[0007] The locking structure comprises a locking member and a fastener;

[0008] The positioning structure comprises a positioning member and a positioning groove capable of being connected, one of the positioning member and the positioning groove is arranged on the pulse signal transmission member, and the other is arranged on the locking structure;

[0009] When the positioning member and the positioning groove are connected, the pulse signal transmission member reaches the set position; the fastener is used to fix the pulse signal transmission member at the set position.

[0010] Further, the positioning groove is arranged on the pulse signal transmission member, and the positioning member is arranged on the locking structure.

[0011] Further, the positioning member is an elastic positioning member.

[0012] Further, the positioning member is a spring, and the positioning member is arranged on one side of the locking member facing the pulse signal transmission member.

[0013] Further, the positioning member is an elastic ball head, and the elastic ball head comprises a ball head part and an elastic member, and the elastic member connects the ball head part and a fastener; the elastic ball head is connected to one end of the fastener facing the pulse signal transmission member.

[0014] Further, the positioning groove is an arc-shaped groove.

[0015] Further, the fitting device further comprises a limiting structure arranged on the locking structure, and the limiting structure is used for limiting the movement of the positioning member in a direction perpendicular to the axial direction of the pulse signal transmission member.

[0016] Further, the limiting structure is a limiting groove arranged on one side of the locking member facing the pulse signal transmission member, and the positioning member is installed in the limiting groove.

[0017] Further, the locking member is provided with a avoiding groove, and the avoiding groove is located on one side of the limiting groove.

[0018] Further, the limiting structure is a cover plate fixedly arranged on one side of the locking member away from the pulse signal transmission member.

[0019] The application further provides a pulse generator comprising a top cover and the fitting device according to the application, and the fitting device is installed on the top cover.

[0020] In use, a doctor inserts the pulse signal transmission member into the channel of the top cover of the pulse generator, and in the process of insertion, the pulse signal transmission member moves relative to the locking structure along the axial direction thereof; when the positioning member in the positioning structure is engaged with the positioning groove, the insertion person will be fed back with an engagement force, so that the doctor can perceive the insertion condition of the pulse signal transmission member; the doctor can judge that the pulse signal transmission member is inserted into position by the sense of touch or sound, and then the pulse signal transmission member is fixed by the fastener. The fitting device for the pulse generator provided by the application can feed back the insertion condition of the pulse signal transmission member to the doctor by the sense of touch or sound during the operation of a patient, help the doctor to confirm the use state of the product, and avoid the problem that the pulse signal transmission member cannot be ensured to be inserted into position in the prior art, thereby reducing the pain of the patient during the operation and saving the medical resources for the operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a partial structural diagram of a pulse generator provided in Embodiment 1 of the present invention, which includes the matching device for the pulse generator of the present invention;

[0023] Figure 2 for Figure 1 Enlarged view of point M in the image;

[0024] Figure 3 This is a schematic diagram of the mating device in Embodiment 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the locking component in Embodiment 1 of the present invention;

[0026] Figure 5 for Figure 4 A cross-sectional view of the central locking component;

[0027] Figure 6 for Figure 4 Top view of the locking component;

[0028] Figure 7 This is a schematic diagram of the positioning component in Embodiment 1 of the present invention;

[0029] Figure 8 This is a schematic diagram of the pulse signal transmission device in Embodiment 1 of the present invention;

[0030] Figure 9 This is a partial perspective view of the pulse signal transmission device in Embodiment 1 of the present invention;

[0031] Figure 10 for Figure 9 Front view of the pulse signal transmission component in the middle;

[0032] Figure 11 This is a partial structural diagram of a pulse generator provided in Embodiment 2 of the present invention, which includes the matching device for the pulse generator of the present invention;

[0033] Figure 12 for Figure 1 Enlarged view of N points in the image;

[0034] Figure 13 This is a schematic diagram of the assembly structure of the fastener and positioning element in Embodiment 2 of the present invention;

[0035] Figure 14 is a sectional view of the pulse signal transmission member in the embodiment 1 of the present application; Figure 13

[0036] Figure 15 is a structure schematic view of the pulse signal transmission member in the embodiment 2 of the present application;

[0037] Figure 16 is a partial perspective view of the pulse signal transmission member in the embodiment 2 of the present application; Figure 15

[0038] Figure 17 is a sectional view of the pulse signal transmission member in the embodiment 2 of the present application; Figure 16

[0039] Figure 18 is an exploded view of the cooperating device in the embodiment 2 of the present application;

[0040] Figure 19 is a use state view of the cooperating structure in the embodiment 2 of the present application;

[0041] Figure 20 is a perspective view of the cover plate in the embodiment 2 of the present application.

[0042] Reference signs:

[0043] 1-pulse signal transmission member; 11-pulse signal transmission member tube wall; 12-engaging contact; 21-locking member; 22-fastening member; 211-first through hole; 212-second through hole; 213-avoidance slot; 221-external thread; 222-internal hexagonal hole; 31-positioning member; 32-positioning slot; 311-ball head; 312-elastic member; 4-top cover; 51-limiting slot; 52-cover plate; DETAILED DESCRIPTION

[0044] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0046] ​​​In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] The present application provides a matching device for a pulse generator, as shown in Figure 1 and Figure 11 , which comprises a pulse signal transmission member 1, a locking structure and a positioning structure; the locking structure comprises a locking member 21 and a fastening member 22; the positioning structure is located between the pulse signal transmission member 1 and the locking structure, and is used to ensure that the pulse signal transmission member 1 reaches a set position relative to the locking member 21 in the axial direction thereof, so as to realize the positioning function; the fastening member 22 is used to fix the pulse signal transmission member 1 at the set position.

[0048] The set position refers to the position where the pulse signal transmission member 1 is inserted and can be normally used.

[0049] Specifically, as shown in Figure 8 and Figure 15 , the pulse signal transmission member 1 comprises a pulse signal transmission member pipe wall 11, and a clamping contact 12 is arranged on the pulse signal transmission member pipe wall 11, which is used to be clamped and connected with the locking structure.

[0050] In an embodiment of the present application, the pulse signal transmission member 1 can be a conductive medium, which transmits electrical signals, for example, an electrode. In addition, the pulse signal transmission member 1 can also be selected according to specific circumstances.

[0051] As shown in Figure 2 and Figure 12 , the positioning structure comprises a clamping and connecting positioning member 31 and a positioning groove 32, one of which is arranged on the pulse signal transmission member 1, and the other is arranged on the locking structure; when the positioning member 31 is clamped and connected with the positioning groove 32, the pulse signal transmission member 1 reaches the set position.

[0052] In use, the doctor inserts the pulse signal transmission member 1 into the channel of the top cover 4 of the pulse generator, and in the process of insertion, the pulse signal transmission member 1 moves along its axis relative to the locking structure. When the positioning member 31 in the positioning structure is in engagement with the positioning groove 32, the doctor can feel the engagement force, and thus can perceive the insertion of the pulse signal transmission member 1. The doctor can determine that the pulse signal transmission member 1 is inserted to the right position by feeling or hearing, and then fixes the pulse signal transmission member 1 by the fastener 22. The matching device for the pulse generator provided by the present application can feed back the insertion of the pulse signal transmission member 1 to the doctor by feeling or hearing during the operation of the patient, and thus can help the doctor to confirm the installation and use state of the product, and avoid the problem that the pulse signal transmission member 1 cannot be inserted to the right position in the prior art, thereby reducing the pain of the patient during the operation and saving the medical resources.

[0053] The fastener 22 can be any structure capable of fixing the position of the pulse signal transmission member 1. In the embodiment, the fastener 22 is a fastening screw, and a torque screwdriver can be used to lock the fastening screw to fix the pulse signal transmission member 1. Specifically, when the fastener 22 is a fastening screw, the outer surface of the fastener 22 is provided with external threads 221, and the inner part of the fastener 22 is provided with an internal hexagonal hole 222, and a hexagonal screwdriver can be used to tighten the fastening screw.

[0054] In some embodiments of the present application, as shown in Figure 8-10 and Figure 15-17 , the positioning groove 32 is arranged on the pulse signal transmission member 1, and the positioning member 31 is arranged on the locking structure. In other embodiments of the present application, the positioning groove 32 is arranged on the locking structure, and the positioning member 31 is arranged on the pulse signal transmission member 1. Preferably, the positioning groove 32 is arranged on the pulse signal transmission member 1, and the positioning member 31 is arranged on the locking structure, which is convenient for manufacturing and use.

[0055] Further, the positioning member 31 is an elastic positioning member. The use of the elastic positioning member can also make the locking structure have very reliable elastic electrical connection performance, can assist in absorbing the displacement and deformation of the pulse signal transmission member 1, reduce the possibility that the locking screw is loosened due to vibration, and increase the system stability and the reliability of the product connection.

[0056] The shape of the positioning groove 32 and the outer contour of the positioning member 31 are matched, so as to be well engaged. For example, the positioning groove 32 is arc-shaped, and the outer contour of the positioning member 31 is also arc-shaped.

[0057] Further, the positioning member 31 can be fixed on the locking structure, or movably arranged on the locking structure. When the positioning member 31 is movably arranged on the locking structure, a limiting structure can be additionally provided. Specifically, the cooperating device further comprises a limiting structure arranged on the locking structure, for limiting the movement of the positioning member 31 in a direction perpendicular to the axial direction of the pulse signal transmission member 1. By providing the limiting structure, sufficient clamping force can be ensured between the positioning member 31 and the positioning groove 32 of the pulse signal transmission member 1, and the reliability is high.

[0058] Embodiment 1 (see Figures 1 to 10 )

[0059] In this embodiment, as shown in Figure 7 , the positioning member 31 is a spring, as shown in Figure 2 , the positioning member 31 is arranged on the side of the locking member 21 facing the pulse signal transmission member 1. The cooperating device in this embodiment is convenient to manufacture and has low cost.

[0060] Further, as shown in Figure 7 , the positioning member 31 can be a inclined coil spring.

[0061] Specifically, the positioning groove 32 on the pulse signal transmission member 1 can be an arc shape suitable for the spring.

[0062] In this embodiment, referring to Figure 8 , Figure 9 and Figure 10 , the positioning groove 32 on the pulse signal transmission member 1 can be a hump-shaped groove, or other suitable arc-shaped groove.

[0063] Before the pulse signal transmission member is inserted into the top cover, the structure of the cooperating device is shown in Figure 3 . In use, the doctor inserts the pulse signal transmission member 1 into the channel of the top cover 4 of the pulse generator, as shown in Figure 1 and Figure 2 , during the insertion process, the pulse signal transmission member 1 moves relative to the locking member 21 along its axial direction, when the spring is clamped into the positioning groove 32 on the pulse signal transmission member 1, it indicates that the pulse signal transmission member 1 is moved into position, and the doctor perceives that the pulse signal transmission member 1 is inserted into position by the feeling of clamping or sound (such as "click", "click" sound). Then tighten the fastener 22 to lock the position of the pulse signal transmission member 1.

[0064] The limiting structure is a limiting groove 51 arranged on the side of the locking member 21 facing the pulse signal transmission member 1, and the positioning member 31 is installed in the limiting groove 51.

[0065] The structure of the locking member in this embodiment is shown in Figure 4-6 . Specifically, as shown in Figure 5As shown, the locking member 21 has a spring groove on the side facing the pulse signal transmitting member 1, and the spring is disposed in the spring groove. The spring groove can be an annular groove with a U-shaped cross-section.

[0066] In this embodiment, participating again Figure 5 The locking member 21 is provided with a relief groove 213, which is located on one side of the limiting groove 51. The relief groove 213 serves to ensure that the pulse signal transmission member 1 can be tangent to the inner side of the channel of the top cover 4 after the fastener 22 is locked, avoiding point contact or angular contact that could cause deformation of the pulse signal transmission member 1, resulting in incomplete or insecure locking. Specifically, because the protruding structure of the positioning groove 32 (e.g., a camel-hump-shaped groove) on the pulse signal transmission member 1 will increase the diameter of the pulse signal transmission member 1, the pulse signal transmission member 1 will move towards one side of the channel of the top cover 4 during the downward screwing of the fastener 22 (e.g., a fastening screw). The relief groove 213 in this embodiment can avoid the interference of the pulse signal transmission member 1, preventing deformation or even damage to the pulse signal transmission member 1, and ensuring that the fastener 22 (e.g., a fastening screw) can be locked in place.

[0067] Example 2 (see Figures 11-20 )

[0068] In another specific embodiment of the present invention, such as Figure 13 and Figure 14 As shown, the positioning element 31 is an elastic ball head; see details below. Figure 14 The elastic ball head includes a ball head 311 and an elastic element 312, the elastic element 312 connecting the ball head 311 and the fastener 22; the elastic ball head is connected to the end of the fastener 22 facing the pulse signal transmission element 1. Figure 14 and Figure 18 As shown, the elastic ball head and the fastening screw together form an elastic ball head fastening screw (also known as a ball head plunger). The bottom of the fastener 22 has a mounting hole, into which the positioning element 31 is inserted. The spherical structure of this elastic ball head fastening screw, combined with the spring inside the hole, provides a retractable function.

[0069] Specifically, the elastic element 312 can be a spring, or more specifically, a compression spring.

[0070] The positioning groove 32 on the pulse signal transmission component 1 can be a V-shaped groove or other suitable arc-shaped groove. In this embodiment, for example... Figure 15 , Figure 16 and Figure 17 As shown, the positioning groove 32 is a circular hole groove.

[0071] When using, such as 11 and Figure 12As shown, the doctor inserts the pulse signal transmission member 1 into the channel of the top cover 4 of the pulse generator, during the insertion process, the pulse signal transmission member 1 moves along its axial direction relative to the fastener 22 in the locking structure, when the ball head 311 is clamped into the positioning groove 32 on the pulse signal transmission member 1, it indicates that the pulse signal transmission member 1 is moved into position, the doctor perceives that the pulse signal transmission member 1 is inserted into position by the feeling of clamping or sound (for example, "click", "click" sound). Then tighten the fastener 22, lock the position of the pulse signal transmission member 1.

[0072] In the embodiment, the limiting structure is a cover plate 52 fixedly arranged on the side of the locking member 21 away from the pulse signal transmission member 1.

[0073] As shown in the drawings, Figure 20 The cover plate 52 can be in the form of a circular ring, the inner diameter of the cover plate 52 is smaller than the outer diameter of the locking member 21 (for example, the locking screw), so as to prevent the elastic member 312 from pushing the locking member 21 out under the action of the ball head 311. The inner diameter of the cover plate 52 can facilitate the insertion of the tool to tighten the fastener 22.

[0074] Referring to Figure 19 , the use process of the matching device is as follows: the assembly formed by connecting the positioning member 31 and the fastener 22 is placed into the locking member 21, and then the cover plate 52 is fixed on the locking member 21, so as to seal the elastic ball head locking screw. Then insert the pulse signal transmission member 1, when the positioning groove 32 on the pulse signal transmission member 1 cooperates with the ball head 311, a "click" sound is emitted, indicating that the pulse signal transmission member 1 is inserted into position, and then the screwdriver is used to tighten the screw downward, so as to completely lock the pulse signal transmission member 1.

[0075] Specifically, the cover plate 52 can be fixed to the top groove of the locking member 21 by laser welding.

[0076] The matching device in the embodiment has a compact structure and saves more space.

[0077] Embodiment 3

[0078] The application also provides a pulse generator, as shown in Figure 1 and Figure 11 , the pulse generator comprises a top cover 4 and a matching device according to the application, and the matching device is installed on the top cover 4. The top cover 4 is provided with a channel for inserting the pulse signal transmission member 1. The locking member 21 is provided with a first through hole 211 for inserting the pulse signal transmission member 1 and a second through hole 212 for inserting the fastener 22, the first through hole 211 is in communication with the channel on the top cover 4, and the second through hole 212 intersects and communicates with the first through hole 211. Generally, the axial direction of the second through hole 212 is perpendicular to the axial direction of the second through hole 211.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mating device for a pulse generator, characterized in that, The pulse signal transmission member, the locking structure and the positioning structure are included; the locking structure includes a locking member and a fastener; the positioning structure includes a positioning member and a positioning slot capable of being engaged and connected, one of the positioning member and the positioning slot is arranged on the pulse signal transmission member, and the other is arranged on the locking structure; when the positioning member is engaged and connected with the positioning slot, the pulse signal transmission member reaches a set position; The fastener is used to fix the pulse signal transmission member at the set position, the positioning slot is arranged on the pulse signal transmission member, the positioning member is arranged on the locking structure, the positioning member is an elastic positioning member, the positioning member is an elastic ball head, the elastic ball head includes a ball head part and an elastic member, the elastic member connects the ball head part and the fastener; the elastic ball head is connected at one end of the fastener facing the pulse signal transmission member; the fastener is a fastening screw, the elastic member is a spring, the locking member is provided with a first through hole for inserting the pulse signal transmission member and a second through hole for inserting the fastener, a threaded groove for cooperating with the fastening screw is arranged in the second through hole; the elastic ball head and the fastening screw form an elastic ball head fastening screw, the bottom of the fastening screw is provided with a mounting hole, the elastic ball head is installed in the mounting hole, and the ball head part of the elastic ball head fastening screw cooperates with the spring in the mounting hole to have a telescopic function; in use, in the process of inserting the pulse signal transmission member into the first through hole of the locking member of the pulse generator, the pulse signal transmission member moves along its axial direction relative to the fastening screw in the locking structure, when the ball head part is inserted into the positioning slot on the pulse signal transmission member, the pulse signal transmission member reaches the set position, and then the fastening screw is tightened to lock the position of the pulse signal transmission member.

2. The fitting device of claim 1, wherein The shape of the positioning slot is an arc-shaped slot.

3. The mating device of claim 1, wherein, The limiting structure is further included, and the limiting structure is arranged on the locking structure and is used to limit the movement of the positioning member in a direction perpendicular to the axial direction of the pulse signal transmission member.

4. A pulse generator characterized by, The fitting device according to any one of claims 1-3 is included, and the fitting device is installed on the top cover.

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