Arterial compression hemostat

Abstract

The utility model discloses an artery compression hemostat. The artery compression hemostat comprises a mounting plate, a compression assembly movable up and down relative to the mounting plate, and an operation knob and a rotating shaft sleeve driven to rotate by the operation knob. The compression assembly comprises a compression plate and a threaded shaft connected to the compression plate. The threaded shaft is arranged in the rotating shaft sleeve and threadedly cooperates with the rotating shaft sleeve to be driven to move up and down by the rotating shaft sleeve. The operation knob and the mounting plate are provided with mutually cooperating locking structures, and the operation knob and the rotating shaft sleeve are provided with mutually cooperating sliding structures. The operation knob moves up and down relative to the rotating shaft sleeve through the sliding structures to lock or unlock the operation knob and the mounting plate. The artery compression hemostat provided by the utility model can avoid accidental touch of the operation knob to cause compression loosening through simple structure and convenient operation, and the reliability in the use process of the artery compression hemostat is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an arterial compression hemostat. Background Technology

[0002] An arterial compression hemostat is a medical device used for hemostasis after arterial surgery, primarily for closing puncture sites after femoral and radial artery surgeries. It is characterized by its ease of operation, good hemostatic effect, and sterility. One existing arterial compression hemostat adjusts the compression force by moving a screw via a knob. During use, there is a possibility of accidental knob activation, causing the screw to move and loosen its pressure on the hemostatic point, thus affecting the hemostatic effect.

[0003] Therefore, it is necessary to propose a technical solution to overcome the shortcomings of existing technologies. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model proposes an arterial compression hemostat, which can avoid loosening of the compression due to accidental operation and ensure reliability during use.

[0005] This utility model is achieved through the following technical solution: an arterial compression hemostat, comprising a mounting plate and a compression component movable up and down relative to the mounting plate. The arterial compression hemostat further includes an operating knob and a rotating sleeve driven to rotate by the operating knob. The compression component includes a compression plate and a threaded shaft connected to the compression plate. The threaded shaft passes through the rotating sleeve and is threadedly engaged with the rotating sleeve to move up and down driven by the rotating sleeve. A locking structure is provided between the operating knob and the mounting plate, and a sliding structure is provided between the operating knob and the rotating sleeve. The operating knob can move up and down relative to the rotating sleeve through the sliding structure to lock or unlock the operating knob and the mounting plate.

[0006] As a further improved technical solution, the locking structure includes a protrusion and a groove that interlock with each other, one of which is disposed on the bottom surface of the operating knob and the other is disposed on the top surface of the mounting plate.

[0007] As a further improved technical solution, the sliding structure includes a sliding block and a sliding groove, one of which is disposed on the outer side of the rotating bushing and the other is disposed on the inner side of the operating knob.

[0008] As a further improved technical solution, the slider and the groove rotate synchronously in the circumferential direction of the rotating bushing, and can slide relative to each other in the axial direction of the rotating bushing.

[0009] As a further improved technical solution, the slider is T-shaped, including a horizontal block and a vertical block, and the slide is T-shaped, including a horizontal groove and a vertical groove. The horizontal block is accommodated in the horizontal groove, and the vertical block is accommodated in the vertical groove. The horizontal dimension of the horizontal block is equal to the horizontal dimension of the horizontal groove, and the vertical dimension of the horizontal block is smaller than the vertical dimension of the horizontal groove.

[0010] As a further improved technical solution, the lower end of the rotating bushing is provided with a radially outwardly extending lower flange, and the mounting plate is provided with an upper flange located above the lower flange to restrict the rotating bushing from detaching from the mounting plate upward.

[0011] As a further improved technical solution, the lower surface of the upper flange is provided with a plurality of toothed grooves, and a plurality of ball bearings are provided between the upper surface of the lower flange and the lower surface of the upper flange.

[0012] As a further improved technical solution, the peripheral sidewall of the threaded shaft includes two vertical planes arranged opposite each other, and an external thread is provided on the peripheral sidewall between the two vertical planes.

[0013] As a further improved technical solution, the bottom surface of the mounting plate is provided with an anti-rotation plate, and the anti-rotation plate is provided with a through hole that matches the cross-sectional profile of the threaded shaft.

[0014] As a further improved technical solution, the compression assembly also includes a flexible rubber pad, which is mounted on the compression plate.

[0015] The arterial compression hemostat provided by this utility model includes a locking structure between the operating knob and the mounting plate, and a sliding structure between the operating knob and the rotating sleeve. The operating knob can move up and down relative to the rotating sleeve through the sliding structure to lock or unlock the operating knob and the mounting plate. Its structure and operation are simple, which can avoid accidental activation of the operating knob and loosening of the compression, thus improving the reliability during use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly diagram of the arterial compression hemostat of this utility model.

[0017] Figure 2 This is a three-dimensional exploded view of the arterial compression hemostatic device of this utility model.

[0018] Figure 3 This is a cross-sectional view of the arterial compression hemostat of this utility model.

[0019] Figure 4This is another cross-sectional view of the arterial compression hemostat of this utility model.

[0020] The attached figures are labeled as follows: 100, arterial compression hemostat; 1, mounting plate; 10, mounting hole; 11, upper flange; 12, protrusion; 2, compression assembly; 21, compression plate; 22, threaded shaft; 221, vertical plane; 222, external thread; 23, flexible rubber pad; 3, operating knob; 31, slider; 311, transverse block; 312, longitudinal block; 32, groove; 4, rotating bushing; 41, slide groove; 411, transverse groove; 412, longitudinal groove; 42, lower flange; 5, anti-rotation plate; 6, ball bearing. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3 As shown, this utility model discloses an arterial compression hemostat 100. The arterial compression hemostat 100 includes a mounting plate 1 and a compression assembly 2 that can move vertically relative to the mounting plate 1. The arterial compression hemostat 100 also includes an operating knob 3 and a rotating sleeve 4 driven to rotate by the operating knob 3. The compression assembly 2 includes a compression plate 21 and a threaded shaft 22 connected to the compression plate 21. The threaded shaft 22 passes through the rotating sleeve 4 and is threadedly engaged with the rotating sleeve 4, so as to be driven to move vertically by the rotating sleeve 4. A locking structure is provided between the operating knob 3 and the mounting plate 1, and a sliding structure is provided between the operating knob 3 and the rotating sleeve 4. The operating knob 3 can move vertically relative to the rotating sleeve 4 through the sliding structure to lock or unlock the operating knob 3 and the mounting plate 1.

[0024] The arterial compression hemostat 100 provided by this utility model includes an operating knob 3 and a mounting plate 1 with a locking structure that cooperates with each other, and an operating knob 3 and a rotating bushing 4 with a sliding structure that cooperates with each other. The operating knob 3 can move up and down relative to the rotating bushing 4 through the sliding structure to lock or unlock the operating knob 3 and the mounting plate 1. Its structure and operation are simple, which can avoid accidental activation of the operating knob 3 to prevent the compression from loosening and affecting the hemostatic effect, thus improving the reliability during use.

[0025] Please see Figure 1 and Figure 2 As shown, in this embodiment, the mounting plate 1 is a long strip with connecting holes at both ends for a strap to pass through, used to fix the arterial compression hemostat 100 to body parts requiring compression hemostasis, such as the arm or leg. A mounting hole 10 is provided in the middle of the mounting plate 1 for the threaded shaft 22 of the compression assembly 2 to pass through. The threaded shaft 22 passes through the mounting hole 10 from bottom to top. The compression plate 21 included in the compression assembly 2 cannot pass through the mounting hole 10. The compression plate 21 is located below the mounting plate 1 and is used to apply pressure to the area requiring hemostasis. The mounting plate 1 also includes an upper flange 11 disposed around the mounting hole 10. In this embodiment, the mounting hole 10 is a round hole, and the upper flange 11 extends radially around the mounting hole 10. The upper flange 11 cooperates with the rotating sleeve 4 to prevent the rotating sleeve 4 from dislodging upwards from the mounting plate 1. In this embodiment, the lower surface of the upper flange 11 is provided with a plurality of toothed grooves, please refer to the following: Figure 3 As shown, a plurality of balls 6 are disposed between the lower surface of the upper flange 11 and the upper surface of the lower flange 42 of the rotating sleeve 4. The balls 6 are confined within the toothed grooves to reduce the friction between the lower flange 42 of the rotating sleeve 4 and the upper flange 11 of the mounting plate 1 when the rotating sleeve 4 rotates relative to the mounting plate 1. The mounting plate 1 also includes a plurality of protrusions 12 distributed around the mounting hole 10. In this embodiment, the protrusions 12 are protruding posts, evenly distributed around the mounting hole 10.

[0026] Please see Figure 2 and Figure 3As shown, the compression assembly 2 includes a compression plate 21, a threaded shaft 22, and a flexible rubber pad 23. The compression plate 21 and the threaded shaft 22 are integrally formed, with the compression plate 21 located at the lower end of the threaded shaft 22, and the flexible rubber pad 23 mounted on the compression plate 21. In this embodiment, the threaded shaft 22 has a flat cross-section, with its outline roughly resembling a racetrack. Specifically, the peripheral sidewall of the threaded shaft 22 includes two opposing vertical planes 221, and an external thread 222 is provided on the peripheral sidewall between the two vertical planes 221. This structural arrangement of the threaded shaft 22 reduces the thread engagement length between the external thread 222 and the internal thread on the rotating bushing 4, making operation easier and simultaneously allowing for easy restriction of the rotation of the threaded shaft 22 through a square hole structure. For example, in this embodiment, an anti-rotation plate 5 is provided on the bottom surface of the mounting plate 1, and the anti-rotation plate 5 has a through hole that matches the cross-sectional outline of the threaded shaft 22. The anti-rotation plate 5 can prevent the threaded shaft 22 from rotating, thereby ensuring that the compression assembly 2 can only move up and down and will not rotate.

[0027] Please see Figures 2 to 4 As shown, the rotating sleeve 4 is sleeve-shaped and is fitted onto the threaded shaft 22. The inner wall of the rotating sleeve 4 has an internal thread that mates with the external thread 222 on the threaded shaft 22. The lower end of the rotating sleeve 4 has a radially outwardly extending lower flange 42, which mates with the upper flange 11 on the mounting plate 1 to prevent the rotating sleeve 4 from detaching upwards from the mounting plate 1. During installation, the rotating sleeve 4 passes through the mounting hole 10 on the mounting plate 1 from bottom to top. The lower flange 42 on the rotating sleeve 4 does not pass through the mounting hole 10; it is positioned below the upper flange 11 on the mounting plate 1. A groove 41 is provided on the outer side of the peripheral wall of the rotating sleeve 4. This groove 41 mates with the slider 31 on the operating knob 3, allowing the operating knob 3 to drive the rotating sleeve 4 to rotate. Simultaneously, the slide groove 41 also serves to enable relative movement between the rotating bushing 4 and the operating knob 3 in the vertical direction, allowing the operating knob 3 to lock and unlock with the mounting plate 1. In this embodiment, the slide groove 41 is T-shaped, comprising a transverse groove 411 and a longitudinal groove 412. The transverse groove 411 is approximately square, with a certain width in the vertical direction, providing sufficient space for the protrusion on the operating knob 3 to move vertically. The longitudinal groove 412 is a long and narrow groove, providing guidance when the operating knob 3 and the rotating bushing 4 move relative to each other vertically.

[0028] The operating knob 3 is sleeve-shaped and is fitted onto the rotating bushing 4 from top to bottom above the mounting plate 1. A slider 31 is provided on the inner side of the peripheral wall of the operating knob 3. The slider 31 is correspondingly fitted with a groove 41 on the rotating bushing 4. The slider 31 and the groove 41 rotate synchronously in the circumferential direction of the rotating bushing 4 and can slide relative to each other in the axial direction of the rotating bushing 4. In this embodiment, the slider 31 is T-shaped, comprising a transverse block 311 and a longitudinal block 312. The transverse block 311 is accommodated in the transverse groove 411, and the longitudinal block 312 is accommodated in the longitudinal groove 412. The transverse dimension of the transverse block 311 is equal to the transverse dimension of the transverse groove 411; therefore, the operating knob 3 and the rotating bushing 4 rotate synchronously in the circumferential direction. The longitudinal dimension of the transverse block 311 is smaller than the longitudinal dimension of the transverse groove 411; therefore, the operating knob 3 can move upward relative to the rotating bushing 4.

[0029] As described above, the operating knob 3 and the rotating sleeve 4 can move relative to each other in the vertical direction via a sliding structure. The sliding structure includes a sliding block 31 and a sliding groove 41, one of which is located on the outer side of the rotating sleeve 4, and the other on the inner side of the operating knob 3. In the above embodiment, the slider 31 is located on the operating knob 3, and the sliding groove 41 is located on the rotating sleeve 4; in other embodiments, the sliding groove 41 may be located on the operating knob 3, and the slider 31 may be located on the rotating sleeve 4.

[0030] The locking structure enables the operation knob 3 to lock and unlock with the mounting plate 1. The locking structure includes a protrusion 12 and a groove 32 that interlock with each other. One of the protrusion 12 and the groove 32 is located on the bottom surface of the operation knob 3, and the other is located on the top surface of the mounting plate 1. In the above embodiment, the protrusion 12 is located on the mounting plate 1, and the groove 32 is located on the operation knob 3; in other embodiments, the protrusion 12 may be located on the operation knob 3, and the groove 32 may be located on the mounting plate 1.

[0031] When using the arterial compression hemostat 100 provided by this utility model, the operator pinches the operating knob 3 and pulls it upward. At this time, the operating knob 3 moves upward, and the slider 31 slides in the groove 41, but the transverse block 311 of the slider 31 is always in the transverse groove 411 of the groove 411. The groove 32 on the bottom surface of the operating knob 3 disengages from the protrusion 12 on the mounting plate 1 to release the lock between the operating knob 3 and the mounting plate 1. Then, the operating knob 3 is rotated. At this time, the cooperation between the slider 31 and the groove 41 will drive the rotating bushing 4 to rotate, which is driven by the threaded shaft 22. The anti-rotation plate 5 restricts rotation, so the rotation of the rotating bushing 4 drives the threaded shaft 22 to move downward through the engagement of the internal and external threads, thereby applying pressure to the bleeding site through the pressure plate 21 and the flexible pad 23. After the pressure reaches an appropriate level, the operating knob 3 is pressed down so that the groove 32 on the bottom surface of the operating knob 3 engages with the protrusion 12 on the mounting plate 1 to lock the operating knob 3 and the mounting plate 1 together, preventing the operating knob 3 from being accidentally activated and rotating, which would cause the threaded shaft 22 to move upward or downward and affect the pressure hemostasis effect.

[0032] As can be seen from the above description, the arterial compression hemostat 100 provided by this utility model includes a locking structure between the operating knob 3 and the mounting plate 1, and a sliding structure between the operating knob 3 and the rotating sleeve 4. The operating knob 3 can move up and down relative to the rotating sleeve 4 through the sliding structure to lock or unlock the operating knob 3 and the mounting plate 1. Its structure and operation are simple, which can avoid accidental activation of the operating knob 3 and loosening of the compression, thus improving the reliability during use.

[0033] This utility model has been described through several specific embodiments. Those skilled in the art should understand that various modifications and equivalent substitutions can be made to this utility model without departing from its scope. Furthermore, various modifications can be made to this utility model for specific situations or circumstances without departing from its scope. Therefore, this utility model is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this utility model.

Claims

1. An arterial compression hemostat, comprising a mounting plate and a compression assembly movable vertically relative to said mounting plate, characterized in that, The arterial compression hemostat further includes an operating knob and a rotating sleeve driven by the operating knob. The compression assembly includes a compression plate and a threaded shaft connected to the compression plate. The threaded shaft passes through the rotating sleeve and is threadedly engaged with the rotating sleeve to move up and down driven by the rotating sleeve. A locking structure is provided between the operating knob and the mounting plate, and a sliding structure is provided between the operating knob and the rotating sleeve. The operating knob can move up and down relative to the rotating sleeve through the sliding structure to lock or unlock the operating knob and the mounting plate.

2. The arterial compression hemostat as described in claim 1, characterized in that, The locking structure includes a protrusion and a groove that interlock with each other, one of which is located on the bottom surface of the operating knob and the other is located on the top surface of the mounting plate.

3. The arterial compression hemostat as described in claim 1, characterized in that, The sliding structure includes a sliding block and a sliding groove, one of which is disposed on the outer side of the rotating bushing and the other is disposed on the inner side of the operating knob.

4. The arterial compression hemostat as described in claim 3, characterized in that, The slider and the groove rotate synchronously in the circumferential direction of the rotating sleeve, and can slide relative to each other in the axial direction of the rotating sleeve.

5. The arterial compression hemostat as described in claim 4, characterized in that, The slider is T-shaped and includes a horizontal block and a vertical block. The slide is T-shaped and includes a horizontal groove and a vertical groove. The horizontal block is accommodated in the horizontal groove and the vertical block is accommodated in the vertical groove. The horizontal dimension of the horizontal block is equal to the horizontal dimension of the horizontal groove, and the vertical dimension of the horizontal block is smaller than the vertical dimension of the horizontal groove.

6. The arterial compression hemostat as described in claim 1, characterized in that, The lower end of the rotating bushing is provided with a radially outwardly extending lower flange, and the mounting plate is provided with an upper flange located above the lower flange to restrict the rotating bushing from detaching from the mounting plate upward.

7. The arterial compression hemostat as described in claim 6, characterized in that, The lower surface of the upper flange is provided with a plurality of toothed grooves, and a plurality of ball bearings are provided between the upper surface of the lower flange and the lower surface of the upper flange.

8. The arterial compression hemostat as described in claim 1, characterized in that, The peripheral sidewall of the threaded shaft includes two vertical planes arranged opposite each other, and an external thread is provided on the peripheral sidewall between the two vertical planes.

9. The arterial compression hemostat as described in claim 8, characterized in that, The bottom surface of the mounting plate is provided with an anti-rotation plate, and the anti-rotation plate has a through hole that matches the cross-sectional profile of the threaded shaft.

10. The arterial compression hemostat as described in claim 1, characterized in that, The compression assembly also includes a flexible rubber pad, which is mounted on the compression plate.

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