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CN-224220587-U - Electrical stimulation system

CN224220587UCN 224220587 UCN224220587 UCN 224220587UCN-224220587-U

Abstract

The utility model discloses an electrical stimulation system, and belongs to the technical field of medical appliances. The electric stimulation system comprises a pulse generator and a wire, wherein the pulse generator comprises a body and a locking assembly, the locking assembly comprises a locking block and a locking piece, the locking block is arranged on the body and is provided with a through hole and a lock hole which are mutually communicated, the wire penetrates through the through hole, the locking piece is fixedly held in the lock hole, and the first side face of the locking piece is propped against the second side face of the wire. The electric stimulation system provided by the utility model can be used for preventing the displacement of the pulse generator and the lead, avoiding the problem of stimulation failure and ensuring the convenience of repeated assembly and disassembly.

Inventors

  • SHI ZHONGBING
  • HU FANGQIU
  • MA FUYE
  • HAO JINGXIANG

Assignees

  • 景昱医疗科技（苏州）股份有限公司

Dates

Publication Date
20260512
Application Date
20241230

Claims (12)

  1. 1. An electro-stimulation system characterized by comprising a pulse generator (100) and a wire (200), the pulse generator (100) comprising a body (1) and a locking assembly (2), the locking assembly (2) comprising: The locking block (21) is arranged on the body (1), the locking block (21) is provided with a through hole (211) and a lock hole (212) which are communicated with each other, and the lead (200) is arranged through the through hole (211); A locking member (22) is retained within the locking aperture (212), and a first side (225) of the locking member (22) is pressed against a second side (202) of the wire (200).
  2. 2. The electrical stimulation system according to claim 1, wherein the lock hole (212) comprises a threaded hole (2121) and a countersink (2122), the countersink (2122) is communicated with the through hole (211), the locking piece (22) comprises a threaded rod (221) and a boss (222), the threaded rod (221) and the threaded hole (2121) are in threaded fit so that the locking piece (22) and the locking block (21) are connected, and the boss (222) is arranged in the countersink (2122) so that at least part of the first side (225) is formed on the side surface of the boss (222) so as to be pressed against the second side surface (202).
  3. 3. The electrical stimulation system according to claim 2, characterized in that the diameter of the boss (222) is larger than the diameter of the threaded rod (221), such that the connection structure between the boss (222) and the threaded rod (221) has an inclined surface (226), the first side (225) being formed by the side of the boss (222), or the first side (225) being formed by the side of the boss (222) and at least part of the inclined surface (226) together.
  4. 4. The electro-stimulation system as claimed in claim 2, characterized in that the locking assembly (2) further comprises a sealing member (23), the outer circumference of the boss (222) is provided with an annular groove (223), the sealing member (23) is provided in the annular groove (223) so that the boss (222) and the sink (2122) are in sealing connection.
  5. 5. The electrical stimulation system according to claim 4, wherein the outer diameter of the seal (23) is larger than the outer diameter of the boss (222) and the inner diameter of the sink (2122), respectively, such that the seal (23) is interference fit with the side wall of the sink (2122).
  6. 6. The electrical stimulation system according to claim 1, characterized in that the locking member (22) is provided with a mating portion (224), the mating portion (224) being adapted to mate with an external structure to threadedly connect the locking member (22) with the locking aperture (212).
  7. 7. The electrical stimulation system as claimed in claim 1, characterized in that the angle between the centre line of the through hole (211) and the centre line of the lock hole (212) is 90 °.
  8. 8. The electro-stimulation system as claimed in claim 1, characterized in that the outer circumference of the lead (200) is provided with a locking ring (201), the locking member (22) being pressed against the locking ring (201).
  9. 9. The electro-stimulation system according to claim 1, characterized in that the pulse generator (100) further comprises a first sealing block (3), the body (1) is provided with a first mounting groove (11), and the first sealing block (3) is arranged in the first mounting groove (11) and is abutted to one side of the locking block (21) along the mounting direction of the locking piece (22) and the locking block (21).
  10. 10. The electrical stimulation system according to claim 1, wherein the pulse generator (100) further comprises a second sealing block (4), the body (1) is provided with a second mounting groove (12), the second sealing block (4) is arranged at one side of the second mounting groove (12) along the extending direction of the wire (200) and is abutted to the locking block (21), the second sealing block (4) is provided with a via hole, and the wire (200) is penetrated through the via hole.
  11. 11. The electrical stimulation system according to any one of claims 1-10, wherein the pulse generator (100) further comprises a channel module (5), the channel module (5) is arranged in the body (1), the channel module (5) is provided with a threading groove (51), the threading groove (51) is communicated with the through hole (211), the wire (200) is arranged in the threading groove (51) and the through hole (211) in a penetrating way, and the end face (203) of the wire (200) is attached to the groove bottom (52) of the threading groove (51).
  12. 12. The electrical stimulation system according to any one of claims 1-10, wherein the locking block (21) is provided with at least one through hole (211) and at least one lock hole (212), the through holes (211) and the lock holes (212) are arranged in a one-to-one correspondence, the locking piece (22) and the wire (200) are respectively provided with at least one, the wire (200) is correspondingly arranged through the through hole (211), and the locking piece (22) is correspondingly fixed in the lock hole (212).

Description

Electrical stimulation system Technical Field The utility model relates to the technical field of medical equipment, in particular to an electric stimulation system. Background The electrical stimulation system comprises a pulse generator and leads, such as extension leads and electrode leads, connected with the pulse generator, and is implanted in the chest or skull by the pulse generator, and the stimulation is output to the brain through the extension leads and the electrode leads. A reliable connection between the pulse generator and the wire needs to be maintained to ensure the desired function. In the related art, the lead wire is fixedly connected in the pulse generator by pressing the end of the screw. However, in the daily life state of the patient, such as walking, running and other states, the pulse generator, the lead and the screw all face the stress of random vibration or impact, so that the screw is disconnected and fails under the stress working condition, and further the pulse generator and the lead are relatively displaced, and the problem of stimulation failure occurs. Accordingly, there is a need for an electrical stimulation system that addresses the above-described issues. Disclosure of utility model The utility model aims to provide an electric stimulation system which can prevent a pulse generator and a lead from being displaced and avoid the problem of stimulation failure. To achieve the purpose, the utility model adopts the following technical scheme: An electrical stimulation system comprising a pulse generator and a lead, the pulse generator comprising a body and a locking assembly, the locking assembly comprising: The locking block is arranged on the body and is provided with a through hole and a lock hole which are communicated with each other, and the conducting wire penetrates through the through hole; The locking piece is fixedly arranged in the lock hole, and the first side face of the locking piece is propped against the second side face of the lead. In some possible embodiments, the lock hole comprises a threaded hole and a countersink, the countersink is communicated with the through hole, the locking piece comprises a threaded rod and a boss, the threaded rod is in threaded fit with the threaded hole to enable the locking piece to be connected with the locking block, the boss is arranged in the countersink, and at least part of the first side face is formed on the side face of the boss to be pressed against the second side face. In some possible embodiments, the diameter of the boss is larger than the diameter of the threaded rod, so that the connecting structure between the boss and the threaded rod has an inclined surface, and the first side surface is formed by the side surface of the boss, or the first side surface is formed by the side surface of the boss and at least part of the inclined surface. In some possible embodiments, the locking assembly further comprises a sealing member, an annular groove is formed in the periphery of the boss, and the sealing member is arranged in the annular groove, so that the boss and the sinking groove are in sealing connection. In some possible embodiments, the outer diameter of the seal is greater than the outer diameter of the boss and the inner diameter of the sink groove, respectively, such that the seal is an interference fit with the side wall of the sink groove. In some possible embodiments, the locking member is provided with a mating portion for mating with an external structure to threadably connect the locking member with the locking hole. In some possible embodiments, the angle between the center line of the through hole and the center line of the lock hole is 90 °. In some possible embodiments, a locking ring is arranged on the periphery of the wire, and the locking piece is pressed on the locking ring. In some possible embodiments, the pulse generator further comprises a first sealing block, the body is provided with a first mounting groove, and the first sealing block is arranged in the first mounting groove and abuts against one side of the locking block along the installation direction of the locking piece and the locking block. In some possible embodiments, the pulse generator further includes a second sealing block, the body is provided with a second mounting groove, the second sealing block is disposed in the second mounting groove and abuts against one side of the locking block along the extending direction of the wire, the second sealing block is provided with a via hole, and the wire is disposed through the via hole. In some possible embodiments, the pulse generator further comprises a channel module, the channel module is arranged in the body, the channel module is provided with a wire through slot, the wire through slot is communicated with the through hole, the wire is arranged in the wire through slot and the through hole in a penetrating manner, and the end face of the wire is attached to the bottom of