Cradle for handpiece and shockwave device

Abstract

Provided are a cradle on which a shockwave handpiece can be placed at a posture that is substantially consistent, and a shockwave device comprising the cradle.　The cradle 4 has a body part receiver 4a for receiving a body part 9 of the handpiece 3. On the front edge of the body part receiver 4a, a recess 4c corresponding to a large diameter part 9a of the handpiece 3 is provided on the bottom surface of the body part receiver 4a. The body part receiver 4a is provided with a movement-preventing part (tip projection 4d) for preventing the handpiece 3 placed on the cradle 4 such that the large diameter part 9a of the handpiece 3 is positioned in the recess 4c in the body part receiver 4a from moving forward.

Description

Handpiece stand and shock wave device

[0001] This invention relates to a handpiece holder and shock wave device for delivering shock waves to a patient.

[0002] Non-patent document 1 describes a pneumatic massager in which a handpiece used to stimulate and massage the body's muscle structure is placed on a support provided on the side of the massager's main body. The handpiece comprises a handle for gripping the handpiece, a shaft provided facing forward near the upper end of the handle, and a transmitter attached to the tip of the shaft. The front end of the shaft has a larger diameter section than the rear end. The support for the handpiece in Non-patent document 1 is shown in Figures 7(a) and 7(b). Figure 7(a) is a photograph of the support 20 viewed from above, and Figure 7(b) is a photograph of the support 20 viewed from the front end 20c to the rear end 20d. An arch-shaped anti-drop member 20a is provided at the front end of the support 20 to prevent the handpiece from falling off the support 20. The bottom surface 20b of the support 20 is almost flat. As shown in the photograph in the "Appearance" section on the left column of page 1 of Non-Patent Document 1, when the handpiece is placed on the support base 20, the transmitter and the large diameter portion usually protrude forward from the front end 20c of the support base 20, and the handle is in contact with at least a part of the rear end 20d of the support base 20.

[0003] Package insert "MasterPulse MP100", Approval number: 22900BZX00230000, [Manufacturer / Distributor] Karl Storz Endoscopy Japan Co., Ltd., [online], April 2024 (7th edition), Pharmaceuticals and Medical Devices Agency (PMDA), Medical Device Information Search Website, [Searched June 3, 2024], Internet <URL: https: / / www.pmda.go.jp / PmdaSearch / kikiDetail / ResultDataSetPDF / 200484_22900BZX00230000_A_01_07>

[0004] The position of the front end of the handpiece placed on the conventional cradle 20 is not restricted. When placing the handpiece on the cradle 20, it is not normally considered that the part of the handle hitting the rear end 20d of the cradle 20 is always the same part. Therefore, it is considered that the posture of the handpiece placed on the cradle 20 changes according to the way of placing the handpiece. For example, a state where the longitudinal direction of the shaft is substantially parallel to the bottom surface 20b of the cradle 20 (Case A), or a state where the longitudinal direction of the shaft is inclined with respect to the bottom surface 20b of the cradle 20 and the front end of the shaft is positioned downward compared to Case A (Case B) can be considered. As in these Cases A and B, the posture of the handpiece placed on the cradle 20 is not determined, and it was difficult to place the handpiece on the cradle 20 in substantially the same posture.

[0005] The present invention has been made to solve such problems, and an object thereof is to provide a cradle on which a handpiece can be placed in substantially the same posture and a shock wave device including the cradle.

[0006] (1) The cradle of the present invention is a cradle for receiving a handpiece that generates a shock wave. The handpiece has a grip portion that a therapist holds, and an applicator that gives a shock wave to a patient is attached to the front end portion, and a main body portion whose rear end portion is connected to the grip portion. A large-diameter portion, which is a portion thicker than the rear end portion, is provided at the front end portion of the main body portion. The cradle has a main body portion receiver for receiving the main body portion. At the front end portion of the main body portion receiver, a recess corresponding to the large-diameter portion of the handpiece is provided on the bottom surface of the main body portion receiver. The cradle provided with a movement prevention portion for preventing the handpiece placed on the cradle from moving forward when the large-diameter portion of the handpiece is positioned in the recess of the main body portion receiver.

[0007] According to this design, when the handpiece is placed on the support, if the larger diameter portion of the handpiece is positioned in the recess of the main body support, the movement prevention mechanism prevents the handpiece from moving further forward. Therefore, the placement of the handpiece is restricted, allowing it to be placed on the support in almost the same orientation. Furthermore, since the main body support has a recess corresponding to the larger diameter portion of the handpiece, the stability of the handpiece when placed on the support is improved.

[0008] (2) In a preferred embodiment of the support stand of the present invention, the movement prevention portion is provided at the tip of the main body support and is a tip projection that protrudes inward from the inner surface of the main body support. With this, when the handpiece is placed on the support stand, the tip of the main body of the handpiece comes into contact with the tip projection, which restricts the position in which the handpiece is placed, and the handpiece can be placed on the support stand in substantially the same position.

[0009] (3) In a preferred embodiment of the support stand of the present invention, the upper surface of the tip projection has an inclined surface on the rear side that is located further inward of the main support than on the front side. With this, when pulling the handpiece out of the support stand, applicators with a larger outer diameter are more likely to hit the tip projection of the support stand and get caught, but because an inclined surface is formed on the tip projection, the handpiece can be pulled out smoothly even if the applicator hits the tip projection.

[0010] (4) In a preferred embodiment of the support stand of the present invention, a fall prevention member is formed on the support stand that extends to at least a portion of the periphery of the main body of the handpiece placed on the support stand, in order to prevent the handpiece from falling off the support stand, the tip of the fall prevention member is not parallel to the bottom surface of the support stand, and the rear side is configured to be further away from the bottom surface of the support stand than the front side, and when the main body of the handpiece is brought into contact with the back surface of the tip of the fall prevention member and moved along the back surface, the applicator is configured to pass through the opening at the tip of the support stand. According to this, the fall prevention member formed on the support stand can prevent the handpiece from falling off the support stand. When pulling the handpiece out of the support stand, moving the handpiece with the main body along the back surface of the tip of the fall prevention member makes it less likely for the applicator attached to the front end of the handpiece to get caught on the tip of the support stand, making it easier to pull out.

[0011] (5) In a preferred embodiment of the support stand of the present invention, a trigger switch for controlling the output of the shock wave is provided on the grip portion of the handpiece, and a rear support portion is provided behind the main body support portion to support the grip portion and / or the main body portion of the handpiece, wherein the rear support portion supports a position away from the trigger switch when the handpiece is placed on the support stand such that the larger diameter portion of the handpiece is positioned in the recess of the main body support portion. This prevents the trigger switch from being accidentally pressed by hitting the support stand when the handpiece is placed on the support stand such that the larger diameter portion of the handpiece is positioned in the recess of the main body support portion. Furthermore, the rear support portion allows the handpiece to be placed on the support stand more stably.

[0012] (6) The shock wave device of the present invention is characterized by comprising a support stand as described in any of (1) to (5), a handpiece for generating shock waves, and a device body having a drive unit for the handpiece. This makes it possible to provide a shock wave device equipped with a support stand that allows the handpiece to be placed in substantially the same position.

[0013] According to the present invention, it is possible to provide a support stand that allows a handpiece to be placed in substantially the same position, and a shock wave device equipped with the support stand.

[0014] This is a front view of a shock wave device according to Embodiment 1 of the present invention. This is a partial cross-sectional view of the base and handpiece of the shock wave device. This is a view of the base in Figure 1 from the rear side. This is a diagram illustrating the movement when the handpiece is pulled out from the base. This is a partial cross-sectional view of the handpiece and base according to Embodiment 2 of the present invention. This is a diagram showing the handpiece and base according to Embodiment 3 of the present invention. (a) and (b) are photographs of a conventional base.

[0015] (Embodiment 1) Figure 1 shows a shock wave device for treating a patient by applying shock waves. The shock wave device 1 has a device body 2 and a handpiece 3, and the handpiece 3 is placed on a support 4 provided on the side of the device body 2. The handpiece 3 generates shock waves by being driven by compressed air, and the compressed air is supplied to the handpiece 3 from a compressor (drive unit) (not shown) provided inside the device body 2. The device body 2 is provided with a touch panel 5 and a dial 6, and the touch panel 5 can be used to input settings such as treatment conditions, and can also display treatment history and treatment conditions. The dial 6 can be used to increase or decrease the value of the treatment conditions (for example, the intensity of stimulation by shock waves). The cord connection part 3a of the handpiece 3 and the device body 2 are connected by a cord (not shown), and power and compressed air are supplied from the device body 2 to the handpiece 3 via the cord, and electrical signals are exchanged between the device body 2 and the handpiece 3.

[0016] Figure 2 is a side view of the handpiece 3 and base 4 in Figure 1, with the base 4 shown in a cross-sectional view (the cross-section is shown along line A-A in Figure 1). As shown in Figure 2, the handpiece 3 has a grip portion 7 that is held by the therapist, and a roughly cylindrical main body portion 9 with an applicator 8 that delivers shock waves to the patient attached to its front end and its rear end connected to the grip portion 7. The applicator 8 is detachable from the main body portion 9 by screwing it in. Multiple types of applicators 8 with different outer diameters can be used, with the maximum outer diameter being, for example, 43 mm. The front end of the main body portion 9 is provided with a larger diameter portion 9a, which is wider than the rear end of the main body portion 9. The larger diameter portion 9a has an expanding portion 9a1 whose diameter increases towards the front, and a constant portion 9a2 located in front of the expanding portion 9a1 with a constant diameter. The diameter of the constant portion 9a2 is, for example, 44 mm. A trigger switch 10 is provided on the grip portion 7, and the trigger switch 10 is rotatable around the shaft 10a shown by the hidden line, and the switch can be operated by rotating it inward from the state shown in Figure 2 on the grip portion 7. The trigger switch 10 that has been rotated inward on the grip portion 7 is returned to the state shown in Figure 2 by a torsion coil spring (not shown) attached to the shaft 10a. The main body portion 9 is provided with a collision body (not shown) that can move in the front-rear direction as shown by arrow F inside a cylindrical member (not shown), and by operating the trigger switch 10, compressed air is supplied into the cylindrical member to accelerate the collision body forward and cause it to collide with the piston 8a of the applicator, thereby generating a shock wave. An output adjustment switch 11 for adjusting the output of the shock wave (stimulation intensity by the shock wave) is provided on the upper end portion 7a of the grip portion 7.

[0017] Next, the support base 4 will be described with reference to Figures 2 and 3. Figure 3 is a view of the support base 4 of Figure 1 from the rear side. The support base 4 has a body part support 4a for receiving the main body part 9 of the handpiece 3, and two anti-drop members 4bL and 4bR formed on the body part support 4a and arranged separately on the left and right sides to prevent the handpiece 3 from falling out of the body part support 4a. The bottom surface of the body part support 4a is provided with a recess 4c corresponding to the larger diameter part 9a of the handpiece 3. The tip of the body part support 4a is provided with a tip projection 4d that protrudes inward from the inner surface of the body part support 4a, and a rear support part 4e that supports the grip part 7 of the handpiece 3 is provided behind the body part support 4a at the rear end of the support base 4. The rear support part 4e is in contact with the grip part 7 of the handpiece 3 throughout its entire length and supports the grip part 7. The tip of the body part support 4a is an opening 4f through which the applicator 8 can pass.

[0018] As shown in Figure 3, the anti-detachment members 4bL and 4bR are formed so that they move closer to each other as they go upward from the upper edges 4aL and 4aR of the main body receiver 4a, and the tip 4b1 of the anti-detachment member 4bL and the tip 4b2 of the anti-detachment member 4bR are separated by a gap that prevents the main body 9 of the handpiece 3 placed on the support base 4 from passing through. For example, if the aforementioned cord connecting the handpiece 3 and the device body 2 is pulled downward and the main body 9 of the handpiece 3 on the support base 4 tries to lift upward, the movement of the main body 9 is restricted by the anti-detachment members 4bL and 4bR, thereby preventing the handpiece 3 from falling off the support base 4. Note that the tip 4b1 of the anti-detachment member 4bL and the tip 4b2 of the anti-detachment member 4bR may be connected. In other words, the anti-detachment members 4bL and 4bR extend around at least a portion of the main body 9 of the handpiece 3 to prevent the handpiece 3 from falling out of the main body receiver 4a. As shown in Figure 2, the tip 4b1 of the anti-detachment member 4bL is not parallel to the bottom surface of the main body receiver 4a, and is configured so that its rear side is further away from the bottom surface of the main body receiver 4a than its front side. Similarly, the tip 4b2 of the anti-detachment member 4bR is not parallel to the bottom surface of the main body receiver 4a, and is configured so that its rear side is further away from the bottom surface of the main body receiver 4a than its front side.

[0019] Because the support base 4 is provided with a recess 4c, when the handpiece 3 is placed on the support base 4 as shown in Figure 2, the bottom surface of the main body support 4a is in almost complete contact with the main body 9 of the handpiece 3 over the entire length of the straight section 4a1, and a fixed portion 9a2 of the large diameter 9a of the handpiece 3 is in almost complete contact with the recess 4c. In this way, the handpiece 3 can be placed stably on the support base 4, and the stability when placing a handpiece 3 with a large diameter 9a on the support base 4 is improved compared to a support base without a recess 4c. Furthermore, as shown in Figure 2, when the handpiece 3 is placed on the support base 4, the weight of the handpiece 3 causes the fixed portion 9a2 to press against the tip protrusion 4d of the support base 4, further improving the stability when placing the handpiece 3 on the support base 4.

[0020] Next, the movement of the handpiece 3 when the therapist pulls it out of the support base 4 will be explained using Figure 4. In Figure 4, the support base 4 is shown as a cross-sectional view taken along the line A-A in Figure 1. The handpiece 3 shown by the solid line 12 has its main body 9 in contact with the back surface of the tip 4b1 of the fall prevention member 4bL of the support base 4, and its large diameter portion 9a is located near the opening 4f of the support base 4. The dashed lines 13a and 13b show the outer shape of the handpiece 3 and represent the movement of the handpiece 3 when it is pulled out of the support base 4. When the therapist grasps the grip portion 7 of the handpiece 3 in the state shown in Figure 2, and lifts the handpiece 3 so that the main body 9 is along the back surface of the tip 4b1 of the fall prevention member 4bL, it will be in the state shown by the solid line 12 in Figure 4. From the state shown by the solid line 12, the therapist moves the handpiece 3 so that the grip portion 7 moves away from the base 4, while maintaining the state in which the main body portion 9 is in contact with the back surface of the tip portion 4b1 of the fall prevention member 4bL, by aligning the main body portion 9 with the tip portion 4b1. This progresses through the state shown by the dashed line 13a to the state shown by the dashed line 13b, allowing the handpiece 3 to be pulled out of the base 4. In the state shown by the dashed line 13a, the main body portion 9 of the handpiece 3 is in contact with and aligned with the back surface of the tip portion 4b1 of the fall prevention member 4bL of the base 4. By pulling the handpiece 3 out of the base 4 in this manner, the applicator 8 positioned at the front end of the handpiece 3 is less likely to get caught on the tip protrusion 4d of the base 4, making it easier to pull the handpiece 3 out of the base 4. As can be seen from Figure 4, when the main body 9 of the handpiece 3 is brought into contact with the back surface of the tip 4b1 of the anti-detachment member 4bL and the handpiece 3 is moved along the back surface of the tip 4b1, the applicator 8 is configured to pass through the opening 4f of the main body receiver 4a of the base 4. In the above explanation using Figure 4, the explanation uses the anti-detachment member 4bL of the anti-detachment members 4bL and 4bR of the base 4, but the same explanation can be given by substituting the anti-detachment member 4bL and tip 4b1 with the anti-detachment member 4bR and tip 4b2.

[0021] When a therapist holding the grip portion 7 places the handpiece 3 on the support base 4, the therapist moves the handpiece 3 so that the applicator 8 and the larger diameter portion 9a of the main body portion 9 pass through the space enclosed by the bottom surface of the main body portion support 4a of the support base 4 and the anti-drop members 4bL and 4bR, bringing the grip portion 7 closer to the support base 4. When the therapist moves the handpiece 3 further forward, the tip of the larger diameter portion 9a hits the tip protrusion 4d of the support base 4, or the grip portion 7 hits the rear support portion 4e of the support base 4, stopping the movement of the handpiece 3, and the therapist releases the grip portion 7, placing the handpiece 3 on the support base 4.

[0022] As shown in Figures 2, 3, and 4, the upper surface of the tip projection 4d provided on the main body receiver 4a has an inclined surface 4d1 where the rear side is located further inward on the main body receiver 4a than the front side. When pulling the handpiece 3 out of the receiver 4, applicators 8 with larger outer diameters are more likely to hit and get caught on the tip projection 4d of the receiver 4. However, because the tip projection 4d has an inclined surface 4d1, even if the applicator 8 hits the tip projection 4d, the applicator 8 can easily move along the inclined surface 4d1, allowing the handpiece 3 to be smoothly pulled out of the receiver 4.

[0023] As shown in Figure 2, the tip projection 4d provided on the main body receiver 4a functions as a movement prevention part, preventing the handpiece 3 from moving forward when it is placed on the receiver 4 such that the larger diameter portion 9a of the handpiece 3 is positioned in the recess 4c of the main body receiver 4a. When the handpiece 3 is placed on the receiver 4, once the larger diameter portion 9a of the handpiece 3 is positioned in the recess 4c of the main body receiver 4a, the tip projection 4d prevents the handpiece 3 from moving further forward. As a result, the position in which the handpiece 3 is placed is restricted, making it easier to place the handpiece 3 on the receiver 4, and allowing the handpiece 3 to be placed on the receiver 4 in almost the same orientation.

[0024] As shown in Figure 2, the trigger switch 10 of the handpiece 3 placed on the support base 4 is configured so that it does not come into contact with the support base 4. In other words, the rear support portion 4e supports the handpiece 3 in a position away from the trigger switch 10 when the handpiece 3 is placed on the support base 4 so that the larger diameter portion 9a of the handpiece 3 is positioned in the recessed portion 4c of the main body support portion 4a, thereby preventing the trigger switch 10 from coming into contact with the support base 4 and being unintentionally pressed. Furthermore, by supporting the grip portion 7 of the handpiece 3 placed on the support base 4 with the rear support portion 4e, the handpiece 3 can be placed on the support base 4 more stably.

[0025] Next, an example of a therapist treating a patient using the shock wave device 1 will be described. The therapist sets the treatment conditions by operating the touch panel 5 and dial 6 on the device body 2. The treatment conditions can include the type of applicator 8, stimulation intensity (pressure of compressed air from the compressor), number of stimulations (number of shock waves generated from the start to the end of treatment), and frequency (frequency at which shock waves are generated). Once the treatment conditions have been set, the therapist touches the start button displayed on the touch panel 5, which changes the display to a stop button, and the device is ready to start treatment. After that, the therapist pulls the handpiece 3 from the base 4, grasps the handpiece 3, presses the applicator 8 against the patient's affected area, and presses the trigger switch 10 on the handpiece 3, thereby applying shock waves to the patient's affected area and performing treatment according to the set treatment conditions. During treatment, the therapist can change the stimulation intensity by operating the output adjustment switch 11 on the handpiece 3. When the set number of shock waves have been output and the shock wave output has stopped, the therapist removes the applicator 8 from the patient's affected area, ending the treatment. After the treatment is complete, the therapist places the handpiece 3 on the support stand 4. The therapist can also stop the shock wave output by touching the aforementioned stop button, allowing the treatment to be interrupted midway.

[0026] (Embodiment 2) In Embodiment 1, the case in which the grip portion 7 of the handpiece 3 is supported by the rear support portion 4e of the support base 4 was described. However, as shown in Figure 5, the main body portion 9 of the handpiece 3 may be supported by the rear support portion 4g. The support base 4A according to Embodiment 2 has a rear support portion 4g and a rear end portion 4h, and the other configurations are the same as the support base 4 according to Embodiment 1. The rear end portion 4h of the support base 4A is not in contact with the grip portion 7 of the handpiece 3. When the handpiece 3 is placed on the support base 4A such that the larger diameter portion 9a of the handpiece 3 is located in the recess portion 4c of the main body support 4a, the rear support portion 4g supports the handpiece 3 near the rear end portion of the main body portion 9, away from the trigger switch 10. In this case, the handpiece 3 can be placed on the support base 4A more stably by the rear support portion 4g compared to when the rear support portion 4g is not provided. In addition to the rear support portion 4g of the support base 4A supporting the main body portion 9 of the handpiece 3, the rear end portion 4h of the support base 4A may also be configured to support the grip portion 7 of the handpiece 3, as in the rear support portion 4e in Embodiment 1 (see Figure 2). That is, by providing rear support portions 4e and 4g behind the main body support 4a to support the grip portion 7 and / or the main body portion 9 of the handpiece 3, the handpiece 3 can be placed on the support base 4A more stably.

[0027] (Embodiment 3) Figure 6 is a view from below of the handpiece 3 placed on the support base 4B according to Embodiment 3, along the longitudinal direction of the grip portion 7 of the handpiece 3. In Embodiment 1, the case in which the entire rear support portion 4e of the support base 4 is in contact with the grip portion 7 of the handpiece 3 was described, but as shown in Figure 6, the support base 4B may also have a rear support portion 4i instead of a rear support portion 4e. The rear support portion 4i supports the grip portion 7 by contacting it at two contact portions 14 located on the left and right sides, and is configured to support the grip portion 7 by partially contacting it. Even with this configuration, the rear support portion 4i of the support base 4B allows the handpiece 3 to be placed on the support base 4B more stably. In addition, the rear support portion 4g that supports the grip portion 7, as described in Embodiment 2, may also be provided on the support base 4B according to Embodiment 3. By providing the rear support portions 4g and 4i, the handpiece 3 can be placed on the support base 4B more stably.

[0028] This invention can be applied to a support stand for a handpiece used for treatment with shock waves, and to a shock wave device.

[0029] 1 Shock wave device 2 Device body 3 Handpiece 4, 4A, 4B Receiving base 4a Main body support 4aL, 4aR Upper edge 4a1 Straight section 4bL, 4bR Anti-dropping member 4b1, 4b2 Tip of anti-dropping member 4c Recessed section 4d Protruding tip 4d1 Inclined surface 4e, 4g, 4i Rear support section 4f Opening 4h Rear end 7 Grip section 8 Applicator 9 Main body 9a Large diameter section 10 Trigger switch 12 Handpiece shown by solid line 13a, 13b Handpiece shown by dashed line 14 Contact section

Claims

1. A support stand for receiving a handpiece that generates shock waves, wherein the handpiece has a grip portion for the therapist to hold, and a main body portion to which an applicator that delivers shock waves to a patient is attached at the front end and the rear end is connected to the grip portion, the front end of the main body portion is provided with a larger diameter portion which is thicker than the rear end, the support stand has a main body portion receiver for receiving the main body portion, the front end of the main body portion receiver has a recess portion on the bottom surface of the main body portion receiver corresponding to the larger diameter portion of the handpiece, and the main body portion receiver is provided with a movement prevention portion which prevents the handpiece, when placed on the support stand such that the larger diameter portion of the handpiece is positioned in the recess portion of the main body portion receiver, from moving forward.

2. The support stand according to claim 1, characterized in that the movement prevention portion is provided at the tip of the main body support and is a tip projection that protrudes inward from the inner surface of the main body support.

3. The support base according to claim 2, characterized in that the upper surface of the tip projection has an inclined surface on the rear side that is located further inward of the main body support than on the front side.

4. The support stand according to claim 1, characterized in that a fall prevention member is formed on the main body support so as to prevent the handpiece from falling out of the main body support, the member extending at least a portion of the circumference of the main body of the handpiece placed on the main body support, the tip of the fall prevention member is not parallel to the bottom surface of the main body support, and the rear side is configured to be further away from the bottom surface of the main body support than the front side, and when the main body of the handpiece is brought into contact with the back surface of the tip of the fall prevention member and moved along the back surface, the applicator is configured to pass through the opening at the tip of the main body support.

5. The support stand according to claim 1, characterized in that a trigger switch for controlling the output of the shock wave is provided on the grip portion of the handpiece, a rear support portion for supporting the grip portion and / or the main body portion of the handpiece is provided behind the main body support, and the rear support portion supports the position away from the trigger switch when the handpiece is placed on the support stand such that the larger diameter portion of the handpiece is positioned in the recess of the main body support.

6. A shock wave device comprising a support base according to any one of claims 1 to 5, a handpiece for generating shock waves, and a device body having a drive unit for the handpiece.

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