Temporary pacemaker electrode fixing device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a temporary pacemaker electrode fixing device which comprises a connecting seat, a rolling cavity arranged at the top of the connecting seat and an end cover used for closing the rolling cavity, and a positioning piece and a winding assembly arranged in the rolling cavity. An electrode wire is connected with the winding assembly through the positioning piece, and the winding assembly is used for winding the electrode wire; wherein a fixing structure is arranged on the back face of the connecting base and used for fixing the connecting base to a limb or a sickbed armrest, the middle of an electrode wire is connected with the wrapping post through a wire clamping groove under the positioning effect of the positioning piece, and then the wrapping post is unlocked by pressing the unlocking piece. When the electrode wire is wound, the winding column can be rotated to drive the electrode wire to be wound, then the winding column is fixed through the unlocking piece, the winding column is matched with the positioning piece to wind and fix the electrode wire, and the connecting base can be fixed to a limb or a sickbed handrail through a pair of fixing belts and an elastic piece.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a temporary pacemaker electrode fixation device. Background Technology

[0002] A temporary pacemaker is an emergency and reliable treatment method used in clinical emergency care to treat severe bradycardia, cardiac arrest, and tachycardia. It is a battery-powered temporary cardiac pacing device that is typically connected to a bipolar configuration of temporary transvenous epicardial or myocardial pacing electrode leads using a patient cable, surgical cable, or compatible cable. A pulse generator outputs a specific form of electrical pulse, which, through conduction via the cable and electrodes, stimulates the myocardium in contact with the electrodes, causing myocardial cells to become excited. The pulse then conducts and diffuses along the myocardium to the surrounding areas, causing the heart to contract regularly and ensuring that the heart pumps enough blood to supply the whole body, thus ensuring the patient's safety.

[0003] The exposed electrode wires of temporary pacemakers are prone to detachment and are difficult to secure. To prevent detachment, a temporary pacemaker electrode fixing device is needed to secure the electrode wires. For example, Chinese Patent Publication No. CN219050129U discloses a pacemaker exposed lead fixator, belonging to the field of medical device technology. This invention solves the problems of pacemaker lead and connector detachment causing injury to patients and lead entanglement and slippage leading to abnormal pacemaker operation in existing technologies. This utility model includes a housing and a cover; the housing contains a first lead fixing part and a second lead fixing part; the first lead fixing part includes a first lead fixing block, a first winding part, and a first connector fixing block; the second lead fixing part includes a second lead fixing block, a second winding part, and a second connector fixing block.

[0004] In practice, the electrode wire is wound and fixed by winding it around the winding post and by using the fixing hole of the plug connector. However, this method is only suitable for winding the electrode wire. The electrode wire cannot be wound properly during use, which makes it less practical. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the electrode wires cannot be wound up during use, and to propose a temporary pacemaker electrode fixing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A temporary pacemaker electrode fixation device is designed, including a connecting seat, a winding cavity provided on the top of the connecting seat, and an end cap for closing the winding cavity. A positioning element and a winding assembly are provided inside the winding cavity. The electrode wire is connected to the winding assembly through the positioning element. The winding assembly is used to wind the electrode wire.

[0008] The connecting seat has a fixing structure on its back, which is used to fix the connecting seat to the limb or the armrest of the hospital bed.

[0009] Furthermore, the winding cavity connects the two sides of the connecting seat to form a pair of relief grooves, and the positioning member is provided inside the relief groove. The top of the positioning member is provided with a deformation groove along the length direction, and the top of the positioning member extends inward on both sides of the deformation groove to form a stop portion.

[0010] Furthermore, the top of the stop portion is provided with a guide slope, and the electrode wire is slidably connected to the deformation groove along the guide slope and stopped by the stop portion.

[0011] Furthermore, the winding assembly includes a pair of winding posts, and the bottom surface of the winding cavity is rotatably connected to the winding posts through a pair of sliding grooves. The winding posts fix the middle end of the electrode wire through the wire-locking grooves opened on the periphery, and a protrusion is also provided on the periphery of the winding posts.

[0012] Furthermore, it also includes an unlocking component, which has a ring-shaped structure. The unlocking component is sleeved around the winding post and is slidably connected to the slide groove through a compression spring. Several grooves are arranged in a circular array around the outer periphery of the unlocking component, and the protrusion engages with the grooves. The top of the unlocking component is also provided with a pressing part.

[0013] Furthermore, the fixing structure includes an elastic element, the back of the connecting seat is provided with the elastic element, and fixing straps are fixedly connected to both sides of the elastic element. The pair of fixing straps are closed and fixed by a locking post and a locking groove.

[0014] The present invention provides a temporary pacemaker electrode fixing device with the following advantages: The present invention is equipped with a winding assembly and a positioning component. Under the positioning action of the positioning component, the middle part of the electrode wire is connected to the winding post through the wire locking groove. Then, by pressing the unlocking component to unlock the winding post, the winding post can be rotated to drive the electrode wire to be wound up. At this time, because the two ends of the electrode wire are positioned and generate friction during sliding, it can be tightly wound on the winding post, avoiding loose connection that affects winding. Then, by fixing the winding post with the unlocking component, the winding post, together with the positioning component, winds and fixes the electrode wire. In addition, a pair of fixing straps and elastic components can be used to fix the connecting seat to the limb or bed armrest, which facilitates the fixation of the connecting seat. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A magnified structural diagram of area A;

[0017] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of region B;

[0018] Figure 4 This is a cross-sectional view of the winding assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the fixed structure of this utility model.

[0020] In the diagram: 1. Connecting seat; 11. Rewinding chamber; 12. Relief groove; 13. Slide groove; 2. End cap; 3. Positioning component; 31. Deformation groove; 32. Stop part; 33. Guide slope; 4. Winding assembly; 41. Winding post; 411. Wire locking groove; 412. Protrusion; 42. Unlocking component; 421. Groove; 422. Pressing part; 43. Compression spring; 5. Fixing structure; 51. Elastic component; 52. Fixing strap; 521. Locking post; 522. Locking groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A temporary pacemaker electrode fixing device includes a connecting seat 1, a winding cavity 11 is provided on the top of the connecting seat 1, and an end cap 2 for closing the winding cavity 11. A positioning element 3 and a winding assembly 4 are provided inside the winding cavity 11. The electrode wire is connected to the winding assembly 4 through the positioning element 3. The winding assembly 4 is used to wind up the electrode wire.

[0023] The connecting seat 1 has a fixing structure 5 on its back, which is used to fix the connecting seat 1 to the limb or the armrest of the hospital bed.

[0024] It should be added that the end cap 2 is rotatably connected to the connecting seat 1, and the end of the end cap 2 facing away from the rotating shaft is fixed to the connecting seat 1 by a latch. The end cap 2 is set to protect the winding assembly 4 and the positioning component 3.

[0025] Furthermore, the winding cavity 11 connects the two sides of the connecting seat 1 to form a pair of relief grooves 12, and the positioning member 3 is provided inside the relief groove 12. The top of the positioning member 3 is provided with a deformation groove 31 along the length direction, and the top of the positioning member 3 extends inward on both sides of the deformation groove 31 to form a stop portion 32.

[0026] Furthermore, the top of the stop portion 32 is provided with a guide slope 33, and the electrode wire is slidably connected to the deformation groove 31 along the guide slope 33 and is stopped by the stop portion 32.

[0027] In this embodiment, the electrode wire connecting terminal is disposed in the winding cavity 11 through the relief groove 12. The inner positioning member 3 is disposed correspondingly to the relief groove 12. The positioning member 3 is preferably made of a material with deformation capability such as rubber or plastic. The positioning member 3 can deform under the action of the deformation groove 31, and then the electrode wire can be disposed in the deformation groove 31, avoiding the terminal block from the positioning member 3.

[0028] Furthermore, the guide slope 33 is used to reduce the friction caused by the contact between the electrode wire and the stop part 32. When the electrode wire contacts the stop part 32, the positioning member 3 deforms through the relief groove 12 and the electrode wire is placed in the deformation groove 31.

[0029] Specifically, the diameter of the electrode wire is adapted to the deformation groove 31. When the electrode wire is connected to the winding post 41 and is wound and slid, the electrode wire can be tightly wound on the winding post because the two ends of the electrode wire are positioned and a certain friction is generated when sliding with the deformation groove 31, thus avoiding loose connection that affects winding.

[0030] More specifically, the winding assembly 4 includes a pair of winding posts 41. The bottom surface of the take-up cavity 11 is rotatably connected to the winding posts 41 through a pair of sliding grooves 13. The winding posts 41 fix the middle end of the electrode wire through the wire-locking grooves 411 opened on the periphery. A protrusion 412 is also provided on the periphery of the winding posts 41.

[0031] Specifically, such as Figure 4 As shown, the outer opening side of the wire clamping groove 411 is provided with an arc-shaped part. The arc-shaped parts on both sides are used to clamp the electrode wire. Because the electrode wire is covered with a rubber protective layer, it is clamped in the wire clamping groove 411 by contact deformation.

[0032] Furthermore, because the middle end of the electrode wire is connected to the wire slot 411, when the winding post 41 is rotated, both ends of the electrode wire are wound up synchronously. Of course, after the electrode wire is wound up to an appropriate length, it can be connected to the pacemaker.

[0033] In general, it also includes an unlocking component 42, which has a ring structure. The unlocking component 42 is sleeved around the winding post 41 and is slidably connected to the slide groove 13 through a compression spring 43. Several grooves 421 are arranged in a circular array around the outer periphery of the unlocking component 42. The protrusion 412 engages with the grooves 421. The top of the unlocking component 42 is also provided with a pressing part 422.

[0034] In actual operation, the unlocking component 42, under the action of the compression spring 43, engages with the protrusion 412 through the groove 421, thereby fixing the winding post 41 and preventing it from rotating freely.

[0035] Finally, the fixing structure 5 includes an elastic element 51. The elastic element 51 is provided on the back of the connecting seat 1, and fixing straps 52 are fixedly connected to both sides of the elastic element 51. The pair of fixing straps 52 are closed and fixed by a locking post 521 engaging with a locking groove 522.

[0036] The method by which the pair of fixing straps 52 are closed and fixed can be referred to the fixing method of watch straps or backpack straps in the prior art. Furthermore, the slots 522 are provided with several to facilitate adjustment of the closing size between the pair of fixing straps 52.

[0037] The elastic element 51 can be a rubber pad or a silicone pad, etc., mainly used to help the connecting seat 1 fit better with the limb or handrail, and to ensure that the pair of fixing straps 52 are firmly fixed.

[0038] Alternatively, double-sided tape with a protective layer can be applied to the back of connector 1, and the connector 1 can be fixed by peeling off the protective layer and using the double-sided tape.

[0039] Working method: During operation, the connecting seat 1 is fixed to the limb or the bed armrest by closing and fixing a pair of fixing straps 52;

[0040] Open the end cover 2. The electrode wire connection terminal is located in the winding cavity 11 through the relief groove 12. The electrode wire is connected to the winding post 41 through the wire clamping groove 411. The two ends of the electrode wire are clamped with the positioning member 3. Then, the pressing part 422 presses the unlocking member 42 to move down. After the protrusion 412 is separated from the groove 421, the winding post 41 can be rotated.

[0041] The unlocking component 42 is reset under the action of the compression spring 43, and the protrusion 412 engages with the groove 421 to fix the winding post 41.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A temporary pacemaker electrode fixation device comprising a connection seat (1), characterized in that: The top of the connecting base (1) is provided with a winding cavity (11), and an end cover (2) for closing the winding cavity (11), a positioning piece (3) and a winding assembly (4) are arranged in the winding cavity (11), the electrode wire is connected with the winding assembly (4) through the positioning piece (3), and the winding assembly (4) is used for winding the electrode wire. The back of the connecting base (1) is provided with a fixing structure (5), and the fixing structure (5) is used for fixing the connecting base (1) on a limb or a bed handrail.

2. A temporary pacemaker electrode fixation device according to claim 1, characterized in that: The winding cavity (11) is communicated with both sides of the connecting base (1) to form a pair of accommodation grooves (12), and the positioning piece (3) is arranged in the accommodation grooves (12).

3. A temporary pacemaker electrode fixation device according to claim 2, characterized in that: The top of the stop portion (32) is provided with a guide slope (33), and the electrode wire is slidably connected in the deformation groove (31) along the guide slope (33) and is stopped by the stop portion (32).

4. A temporary pacemaker electrode fixation device according to claim 1, characterized in that: The winding assembly (4) comprises a pair of winding columns (41), the winding columns (41) are rotatably connected to the bottom surface of the winding cavity (11) through a pair of sliding grooves (13), the middle end of the electrode wire is fixed by a clamping groove (411) formed in the periphery of the winding column (41), and a protruding portion (412) is further arranged in the periphery of the winding column (41).

5. A temporary pacemaker electrode fixation device according to claim 4, characterized in that: Further comprising an unlocking piece (42), the unlocking piece (42) is in an annular structure, the unlocking piece (42) is sleeved on the periphery of the winding column (41) and is slidably connected with the sliding groove (13) through a compression spring (43), a plurality of recesses (421) are arranged in the peripheral circumferential array of the unlocking piece (42), the protruding portion (412) is clamped with the recess (421), and a pressing portion (422) is further arranged at the top of the unlocking piece (42).

6. A temporary pacemaker electrode fixation device according to claim 1, characterized in that: The fixing structure (5) comprises an elastic piece (51), the back of the connecting base (1) is provided with the elastic piece (51), and a fixing belt (52) is further fixedly connected to both sides of the elastic piece (51), and a pair of fixing belts (52) are clamped and fixed through clamping columns (521) and clamping grooves (522) between the fixing belts (52).

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