Clamping mechanism and prostate treatment equipment

Abstract

The utility model belongs to the technical field of prostate treatment, and discloses a clamping mechanism and prostate treatment equipment. The clamping mechanism comprises a first clamping piece, a second clamping piece and a locking piece, the first clamping piece is provided with a first containing groove, the first containing groove is provided with a first clamping face, the first clamping face is matched with the peripheral face of the ball head, the second clamping piece is provided with a second containing groove, the second containing groove is provided with a second clamping face, and the locking piece is matched with the second clamping face. The second clamping face is matched with the peripheral face of the ball head, the first containing groove and the second containing groove jointly contain the ball head, the first clamping piece and / or the second clamping piece are / is further provided with a third containing groove, the third containing groove is communicated with the first containing groove or the second containing groove, a cavity is formed between the third containing groove and the ball head, and the first containing groove and the second containing groove are communicated with each other. The first clamping piece and the second clamping piece are fixed through the locking piece, so that the first clamping face and the second clamping face jointly clamp the ball head. And the clamping mechanism is stable in clamping, so that the angles and the positions of the ball head and the treatment head are fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of prostate treatment, in particular to a clamping mechanism and a prostate treatment device. Background Art

[0002] A prostate treatment device includes a treatment head. During use, the treatment head is inserted into the rectum of a patient, and then the treatment head is fixed, and then ultrasonic treatment is performed on the prostate. The prostate treatment device further includes a ball head and a clamping mechanism. The treatment head is arranged on the ball head, and the clamping mechanism clamps and fixes the ball head. The angle of the ball head can be adjusted arbitrarily by rotating to achieve the arbitrary adjustment of the angle of the treatment head. After the angle adjustment is completed, the ball head is clamped and fixed by the clamping mechanism, so as to ensure the fixed angle and position of the treatment head.

[0003] However, due to the heavy weight of the treatment head, the ball head is easily driven to rotate relative to the clamping mechanism under the gravity of the treatment head, resulting in unstable clamping of the ball head by the clamping mechanism, and further resulting in unfixed angles and positions of the ball head and the treatment head.

[0004] Therefore, there is an urgent need for a new clamping mechanism and a prostate treatment device to solve the problems of unstable clamping of the clamping mechanism and unfixed angles and positions of the ball head and the treatment head caused by unstable clamping of the clamping mechanism. Summary of the Utility Model

[0005] An object of the utility model is to provide a clamping mechanism, which has stable clamping, so that the angles and positions of the ball head and the treatment head are fixed.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A clamping mechanism for clamping a ball head, on which a treatment head is arranged, comprising:

[0008] A first clamping member, which is provided with a first accommodation groove having a first clamping surface that matches the outer peripheral surface of the ball head;

[0009] A second clamping member, which is provided with a second accommodation groove having a second clamping surface that matches the outer peripheral surface of the ball head. The first accommodation groove and the second accommodation groove jointly accommodate the ball head. The first clamping member and / or the second clamping member is / are further provided with a third accommodation groove that communicates with the first accommodation groove or the second accommodation groove, and a cavity is formed between the third accommodation groove and the ball head;

[0010] A locking member for fixing the first clamping member and the second clamping member together so that the first clamping surface and the second clamping surface jointly clamp the ball head.

[0011] As a preferred solution, the notch of the third receiving groove is circular.

[0012] As a preferred solution, the direction of the line connecting the center of the notch and the center of the spherical head is the same as the arrangement direction of the first clamping surface and the second clamping surface.

[0013] As a preferred solution, the diameter of the notch is greater than the radius of the spherical head.

[0014] As a preferred solution, one of the first clamping member and the second clamping member is provided with a positioning groove, and the other of them is provided with a positioning protrusion, and the positioning protrusion abuts against the positioning groove.

[0015] As a preferred solution, the positioning groove is an arc-shaped groove, and the positioning protrusion includes an abutting surface, and the abutting surface is an arc surface.

[0016] As a preferred solution, the first clamping member is provided with a locking hole, and the locking member passes through the locking hole to fix the first clamping member and the second clamping member. The locking hole is located between the positioning groove and the first receiving groove, and the distance L1 between the locking hole and the positioning groove is greater than the distance L2 between the locking hole and the center of the spherical head.

[0017] As a preferred solution, an anti-slip layer is provided on the first clamping surface and / or the second clamping surface and / or the outer peripheral surface of the spherical head.

[0018] As a preferred solution, part of the spherical head extends out of the first receiving groove and the second receiving groove.

[0019] Another object of the present invention is to provide a prostate treatment device, and the clamping mechanism of the prostate treatment device has stable clamping, so that the angles and positions of the spherical head and the treatment head are fixed.

[0020] To achieve this purpose, the present invention adopts the following technical solutions:

[0021] A prostate treatment device, including the clamping mechanism as described above.

[0022] Beneficial effects:

[0023] The present utility model provides a clamping mechanism, which is used to clamp the spherical head of a prostate treatment device, and the treatment head of the prostate treatment device is arranged on the spherical head. The clamping mechanism includes a first clamping member, a second clamping member and a locking member. The first clamping member is provided with a first accommodating groove, and the first accommodating groove has a first clamping surface, which is matched with the outer peripheral surface of the spherical head. The second clamping member is provided with a second accommodating groove, and the second accommodating groove has a second clamping surface, which is matched with the outer peripheral surface of the spherical head. The first accommodating groove and the second accommodating groove jointly accommodate the spherical head, and the locking member fixes the first clamping member and the second clamping member together, so that the first clamping surface and the second clamping surface jointly clamp the spherical head. The first clamping member and / or the second clamping member is / are further provided with a third accommodating groove, and the third accommodating groove is communicated with the first accommodating groove or the second accommodating groove. A cavity is formed between the third accommodating groove and the spherical head, thereby changing the distribution of the acting force between the spherical head and the clamping mechanism, increasing the frictional torque of the clamping mechanism on the spherical head. Under the action of the gravity of the treatment head of the same weight, the spherical head is less likely to rotate relative to the clamping mechanism, making the clamping of the clamping mechanism more stable, and thus the angles and positions of the spherical head and the treatment head are also more accurately fixed.

[0024] The present utility model further provides a prostate treatment device, which uses the above clamping mechanism to clamp the spherical head, so that the clamping is stable, and the angles and positions of the spherical head and the treatment head are fixed. Description of the Drawings

[0025] Figure 1 is a schematic structural view of the clamping mechanism provided by an embodiment of the present utility model;

[0026] Figure 2 is a schematic structural view of the first clamping member provided by an embodiment of the present utility model;

[0027] Figure 3 is a cross-sectional view of the clamping mechanism provided by an embodiment of the present utility model.

[0028] In the figure:

[0029] 100, spherical head; 101, anti-slip layer;

[0030] 10, first clamping member; 11, first accommodating groove; 111, first clamping surface; 12, positioning groove; 13, locking hole;

[0031] 20, second clamping member; 21, second accommodating groove; 211, second clamping surface; 22, positioning protrusion; 221, abutting surface;

[0032] 30, third accommodating groove. Detailed Embodiments

[0033] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the", and "on the" second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the", and "under the" second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] As Figure 1 shown, this embodiment provides a prostate treatment device, which includes a clamping mechanism, a spherical head 100, and a treatment head. The treatment head is arranged on the spherical head 100, and the clamping mechanism is used to clamp the spherical head 100. During treatment, the treatment head needs to be inserted into the patient's rectum, and the angle of the treatment head can be arbitrarily adjusted by rotating and adjusting the angle of the spherical head 100. After the angle adjustment is completed, the spherical head 100 is clamped and fixed by the clamping mechanism, so as to ensure the fixed angle and position of the treatment head.

[0038] Specifically, as Figures 1 to 3As shown, the clamping mechanism includes a first clamping member 10, a second clamping member 20 and a locking member. The first clamping member 10 is provided with a first accommodation groove 11 which has a first clamping surface 111. The first clamping surface 111 is matched with the outer peripheral surface of the ball head 100. The second clamping member 20 is provided with a second accommodation groove 21 which has a second clamping surface 211. The second clamping surface 211 is matched with the outer peripheral surface of the ball head 100. The first accommodation groove 11 and the second accommodation groove 21 jointly accommodate the ball head 100. The locking member fixes the first clamping member 10 and the second clamping member 20 together so that the first clamping surface 111 and the second clamping surface 211 jointly clamp the ball head 100. The clamping mechanism of this structure can realize the adjustment of the ball head 100 at any angle. Both the first clamping surface 111 and the second clamping surface 211 are arc surfaces matched with the outer peripheral surface of the ball head 100, so the angle adjustment is smoother and faster. In this embodiment, the locking member can be a widely used and well-locking structure such as a screw-nut assembly, a screw or a bolt-nut assembly.

[0039] As Figure 1 and Figure 3 shown, a part of the ball head 100 extends out of the first accommodation groove 11 and the second accommodation groove 21. Specifically, a transmission shaft is connected to the ball head 100, and the treatment head is arranged on the transmission shaft. If the first accommodation groove 11 and the second accommodation groove 21 completely wrap the ball head 100, when adjusting the angle of the ball head 100, the transmission shaft will interfere with the clamping mechanism, so that the ball head 100 cannot be rotated to adjust the angle. Therefore, a part of the ball head 100 needs to extend out of the first accommodation groove 11 and the second accommodation groove 21 to ensure the rotational adjustment of the ball head 100. It should be noted that the volume of the ball head 100 extending out of the first accommodation groove 11 and the second accommodation groove 21 can be designed according to the actual rotation angle requirements, and this embodiment does not limit this.

[0040] As Figure 2 and Figure 3 shown, the first clamping member 10 and the second clamping member 20 are also provided with a third accommodation groove 30. The third accommodation groove 30 is communicated with the first accommodation groove 11 or the second accommodation groove 21. A cavity is formed between the third accommodation groove 30 and the ball head 100, thereby changing the distribution of the acting force between the ball head 100 and the clamping mechanism, and thus increasing the frictional torque of the clamping mechanism on the ball head 100. Under the gravity of the treatment head of the same weight, the ball head 100 is less likely to rotate relative to the clamping mechanism, so that the clamping of the clamping mechanism is stable, and the angles and positions of the ball head 100 and the treatment head are fixed.

[0041] In other embodiments, the third accommodation groove 30 can also be provided only on the first clamping member 10 or the second clamping member 20, which can also play a role in preventing the ball head 100 from rotating.

[0042] As Figure 2As shown, the notch of the third receiving groove 30 is circular, and the notch of the third receiving groove 30 is matched with the outer peripheral surface of the ball head 100. When the notch area is the same, the circular notch has a better effect on changing the distribution of the acting force between the ball head 100 and the clamping mechanism, thereby increasing the frictional torque of the clamping mechanism on the ball head 100 more, so that the clamping effect of the clamping mechanism is better and the ball head 100 is less likely to rotate.

[0043] As Figure 3 shown, the direction of the line connecting the center of the notch and the center of the ball of the ball head 100 is the same as the arrangement direction of the first clamping surface 111 and the second clamping surface 211. When the third receiving groove 30 is opened at this position, it has a better effect on changing the distribution of the acting force between the ball head 100 and the clamping mechanism, thereby increasing the frictional torque of the clamping mechanism on the ball head 100 more, so that the clamping effect of the clamping mechanism is better and the ball head 100 is less likely to rotate.

[0044] As Figure 2 and Figure 3 shown, the diameter of the notch is greater than the radius of the ball head 100. When the size of the notch of the third receiving groove 30 meets the above requirements, it has a better effect on changing the distribution of the acting force between the ball head 100 and the clamping mechanism, thereby increasing the frictional torque of the clamping mechanism on the ball head 100 more, so that the clamping effect of the clamping mechanism is better and the ball head 100 is less likely to rotate.

[0045] The following is an explanation of the increased effect of the third receiving groove 30 on the frictional torque of the clamping mechanism on the ball head 100 in combination with calculations:

[0046] Regarding both the first clamping surface 111 and the second clamping surface 211 as hemispherical surfaces, assuming the radius of the ball head 100 is r, assuming the clamping force between the first clamping member 10 and the second clamping member 20 is F, and assuming the friction coefficient between the first clamping member 10 or the second clamping member 20 and the ball head 100 is μ, it is set that the radius of the ball head 100 is 2 (1 / 2) times the radius of the notch of the third receiving groove 30.

[0047] Therefore, when the third receiving groove 30 is not opened, the frictional torque of the clamping mechanism on the ball head 100 is:

[0048] ∫0 2*π (∫0 π / 2 [(2*FrμSin[θ] 2 ) / π]dθ)dφ = πFrμ

[0049] When the third receiving groove 30 is opened, the frictional torque of the clamping mechanism on the ball head 100 is:

[0050] ∫0 2*π (∫ π / 4π / 2 [(4 * FrμSin[θ] 2 ) / π]dθ)dφ = (2 + π)Frμ

[0051] It can be seen from this that when the clamping force is constant, the opening of the third accommodating groove 30 can increase the frictional torque of the clamping mechanism on the ball head 100, so that the ball head 100 is less likely to rotate under the action of the gravity of the treatment head.

[0052] As Figure 1 and Figure 3 shown, an anti-slip layer 101 is provided on the outer peripheral surface of the ball head 100, and the anti-slip layer 101 can also increase the frictional torque of the clamping mechanism on the ball head 100. In this embodiment, the anti-slip layer 101 is a texture with multiple raised channels. In other embodiments, the anti-slip layer 101 can be multiple anti-slip protrusions. In addition, in other embodiments, the anti-slip layer 101 can also be provided on the first clamping surface 111 or the second clamping surface 211, which can also play a role in preventing the ball head 100 from rotating.

[0053] As Figure 2 and Figure 3 shown, the first clamping member 10 is provided with a positioning groove 12, and the second clamping member 20 is provided with a positioning protrusion 22, and the positioning protrusion 22 abuts against the positioning groove 12. The cooperation between the positioning protrusion 22 and the positioning groove 12 can ensure the accurate positioning of the first clamping member 10 and the second clamping member 20, so as to ensure the clamping effect on the ball head 100.

[0054] As Figure 2 and Figure 3 shown, the positioning groove 12 is an arc-shaped groove, and the positioning protrusion 22 includes an abutting surface 221, and the abutting surface 221 is an arc surface. When the first clamping member 10 and the second clamping member 20 are positioned through the cooperation of the positioning groove 12 and the positioning protrusion 22, first use other tools to clamp the first clamping member 10 and the second clamping member 20 at the positions of the positioning protrusion 22 and the positioning groove 12, so that the positioning protrusion 22 abuts against the positioning groove 12, and then use the locking member to fix the first clamping member 10 and the second clamping member 20. During the process of gradually locking the first clamping member 10 and the second clamping member 20 by the locking member, as the first clamping surface 111 and the second clamping surface 211 gradually approach, the positioning protrusion 22 will rotate relative to the positioning groove 12. Therefore, the cooperation between the arc-shaped abutting surface 221 and the arc-shaped groove can make the rotation smoother, ensure higher clamping efficiency of the first clamping member 10 and the second clamping member 20, and is not easy to damage the structures of the positioning protrusion 22 and the positioning groove 12.

[0055] As Figure 3As shown in the figure, the first clamping member 10 is provided with a locking hole 13. The locking member passes through the locking hole 13 to fix the first clamping member 10 and the second clamping member 20. The locking hole 13 is located between the positioning groove 12 and the first accommodating groove 11. The distance L1 between the locking hole 13 and the positioning groove 12 is greater than the distance L2 between the locking hole 13 and the center of the spherical head 100. In this way, it can be ensured that the spherical head 100 can be clamped with a relatively small locking force.

[0056] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A clamping mechanism for clamping a ball head (100), wherein the ball head (100) is provided with a treatment head, characterized in that, Comprising: A first clamping member (10) having a first accommodation groove (11), the first accommodation groove (11) having a first clamping surface (111), the first clamping surface (111) being matched with the outer peripheral surface of the ball head (100); A second clamping member (20) having a second accommodation groove (21), the second accommodation groove (21) having a second clamping surface (211), the second clamping surface (211) being matched with the outer peripheral surface of the ball head (100), the first accommodation groove (11) and the second accommodation groove (21) jointly accommodating the ball head (100), the first clamping member (10) and / or the second clamping member (20) further having a third accommodation groove (30), the third accommodation groove (30) communicating with the first accommodation groove (11) or the second accommodation groove (21), a cavity being formed between the third accommodation groove (30) and the ball head (100); A locking member for fixing the first clamping member (10) and the second clamping member (20) so that the first clamping surface (111) and the second clamping surface (211) jointly clamp the ball head (100).

2. The clamping mechanism according to claim 1, characterized in that The notch of the third accommodation groove (30) is circular.

3. The clamping mechanism according to claim 2, wherein The direction of the line connecting the center of the notch and the center of the ball of the ball head (100) is the same as the arrangement direction of the first clamping surface (111) and the second clamping surface (211).

4. The clamping mechanism according to claim 2, characterized in that, The diameter of the notch is greater than the radius of the ball head (100).

5. The clamping mechanism according to any one of claims 1 to 4, characterized in that, One of the first clamping member (10) and the second clamping member (20) has a positioning groove (12), and the other has a positioning protrusion (22), the positioning protrusion (22) abutting in the positioning groove (12).

6. The clamping mechanism according to claim 5, characterized in that, The positioning groove (12) is an arc-shaped groove, the positioning protrusion (22) includes an abutting surface (221), and the abutting surface (221) is an arc surface.

7. The clamping mechanism according to claim 5, characterized in that, The first clamping member (10) has a locking hole (13), the locking member passes through the locking hole (13) to fix the first clamping member (10) and the second clamping member (20), the locking hole (13) being located between the positioning groove (12) and the first accommodation groove (11), and the distance L1 between the locking hole (13) and the positioning groove (12) being greater than the distance L2 between the locking hole (13) and the center of the ball of the ball head (100).

8. The clamping mechanism according to any one of claims 1 to 4, characterized in that, The first clamping surface (111) and / or the second clamping surface (211) and / or the outer peripheral surface of the ball head (100) is provided with an anti-slip layer (101).

9. The clamping mechanism according to any one of claims 1 to 4, characterized in that, Part of the ball head (100) extends out of the first accommodation groove (11) and the second accommodation groove (21).

10. A prostate treatment device, characterized in that, Comprising the clamping mechanism according to any one of claims 1 to 9.

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