Movable positioning pen on ultrasonic probe

Abstract

The movable positioning pen comprises the ultrasonic probe and a fixing assembly, the fixing assembly comprises a buckling piece, a marking pen and an elastic band connected with the two side ends of the buckling piece, the buckling piece comprises a bottom plate attached to the handheld wall face of the ultrasonic probe, and a pen sleeve connected with the marking pen in a clamping mode is arranged in the middle of the bottom plate. Arc-shaped pressing blocks are arranged on the two outer sides of the pen cap; the marking pen comprises an outer sleeve, an inner sleeve and a pen core; an inner sleeve annular baffle is arranged on the bottom face of the inner sleeve, a pen refill annular push plate is arranged on the outer wall face of the pen refill, a first spring piece is arranged between the pen refill annular push plate and the inner sleeve annular baffle in a sleeving mode, and when the first spring piece is in an uncontracted state, the pen point end of the pen refill is retracted into the inner sleeve. An outer sleeve annular baffle is arranged in the outer sleeve, a sleeve annular push plate is arranged on the outer wall of the inner sleeve, and a second spring piece is connected between the sleeve annular push plate and the outer sleeve annular baffle in a sleeved mode. The overall structural form of the positioning pen is matched with the form of the ultrasonic probe, and the positioning pen has the advantages of flexibility in use and wide applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of medical clinical equipment, in particular to a movable positioning pen on an ultrasonic probe. Background Art

[0002] When using the B-ultrasound machine, first apply ultrasonic coupling agent on the skin surface of the patient's examination area, scan the skin with the coupling agent with the ultrasonic probe, and at the same time check the condition of the tissue under the skin through the monitor to find out the location of the lesion and prepare for accurate positioning of the subsequent surgery; during the operation, when the location of the lesion is found, the doctor generally uses his fingers to pinch the skin surface just above the lesion tissue to make a red indentation on the skin and then mark it with a marker; in this process, if the pinch is too light, the lesion cannot be located, and if the pinch is too heavy, the patient will feel pain.

[0003] To this end, there is a technical solution that bundles a marker pen with an ultrasonic probe, such as a vascular ultrasound marking auxiliary device with patent publication number CN217744439U, which fixes the marker pen to the side of the probe through a fixing component. When in use, the marker pen is slid to a suitable height, and the fastening bolt is tightened to complete the vascular path marking while the ultrasonic probe is probing the vascular path. Although this technical solution uses a marker pen to quickly achieve marking, the marker pen and its fixing device are arranged on the side of the probe, which affects the operation of the probe when in use: when the user operates the probe, the probe can slide vertically or laterally according to the detection position, and when the probe slides sideways, it is very easy to hit the marker pen, causing the marker pen to draw at a non-calibrated position; in addition, this structure will also affect the user's operating gesture of holding the probe sideways, that is, although it achieves marking, it affects the operation of the ultrasonic probe. Utility Model Content

[0004] In order to solve the shortcomings in the prior art, the utility model provides a movable positioning pen on an ultrasonic probe which is easy to use and does not affect the operation of the probe.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A movable positioning pen on an ultrasonic probe comprises an ultrasonic probe and a fixing assembly detachably mounted on the ultrasonic probe, wherein the fixing assembly comprises a buckle, a marking pen detachably fixed to the front side of the buckle, and an elastic band connecting two side ends of the buckle, wherein the buckle comprises a bottom plate fitted with a hand-held wall surface of the ultrasonic probe, a pen cap for clamping the marking pen is arranged at the front of the middle part of the bottom plate, and arc-shaped pressing blocks with arc-shaped surfaces bent downward and extending toward two sides of the bottom plate are arranged on both outer sides of the pen cap;

[0007] The marking pen comprises an outer sleeve, an inner sleeve and a refill which are sequentially sleeved; an inner sleeve annular baffle is provided on the inner side of the bottom of the inner sleeve, the refill is inserted into the inner sleeve and has a greater length than the inner sleeve, an annular push plate is provided on the outer wall of the refill, a first spring member is sleeved between the annular push plate of the refill and the annular baffle of the inner sleeve, a pressing member is provided on the top of the refill, and when the first spring member is not in a contracted state, the tip end of the refill is in the inner sleeve; an outer sleeve annular baffle is provided on the inner side of the bottom of the outer sleeve, the inner sleeve is inserted into the outer sleeve and has a greater length than the outer sleeve, a sleeve annular push plate is provided on the outer wall of the inner sleeve, and a second spring member is sleeved between the sleeve annular push plate and the annular baffle of the outer sleeve.

[0008] Preferably, the pressing member is an annular sleeve whose central axis is perpendicular to the central axis of the pen core.

[0009] Preferably, a protective film is provided at the lower opening of the inner sleeve, and the protective film is a plastic film with a cross-shaped opening in the middle.

[0010] Preferably, a locking hole is provided on the pen cover, and a locking screw is inserted into the locking hole and abuts against the surface of the outer sleeve.

[0011] Preferably, the surface of the arc-shaped pressing block is provided with strip-shaped ridges.

[0012] More preferably, both sides of the snap fastener are wings connected by a plurality of small springs, and the shape of the wings is adapted to the two side corners of the ultrasound probe.

[0013] The beneficial effects of the utility model are:

[0014] The movable positioning pen on the ultrasonic probe of the utility model realizes the retracting of the pen core over a long distance by pushing the inner sleeve with the pen core and the outer sleeve with the inner sleeve, so that the sleeve position has a sufficient distance from the front end of the probe, avoiding the influence of the marker pen on the operation of the probe, thereby ensuring the flexibility of the operator in using the probe. The movable positioning pen has a simple structure and is easy to use. The overall structural form is consistent with the ultrasonic probe form, and has the advantages of flexible use and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a movable positioning pen on the ultrasonic probe of Example 1;

[0016] Figure 2 It is a schematic diagram of the side structure of the movable positioning pen of Example 1;

[0017] Figure 3 is a schematic cross-sectional structure diagram of the marking pen of Example 1;

[0018] Figure 4This is a schematic diagram of the side structure of the movable positioning pen of Example 2. DETAILED DESCRIPTION

[0019] The following is a further description of the specific implementation of the structural schematic diagram of a movable positioning pen on an ultrasonic probe of the utility model in combination with the embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model; ordinary technicians in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the utility model, so all equivalent technical solutions also belong to the scope of the utility model, and the patent protection scope of the utility model should be defined by each claim.

[0020] Example 1

[0021] Figure 1-2 The schematic diagram of the structure of the movable positioning pen on the ultrasonic probe of the utility model is shown.

[0022] This embodiment provides a movable positioning pen on an ultrasound probe, Figure 1-2 As shown, it includes an ultrasonic probe 1 and a fixing component detachably mounted on the ultrasonic probe 1, the fixing component includes a buckle 2, a marker pen 3 detachably fixed to the front side of the buckle 2, and an elastic band 4 connecting the two side ends of the buckle 2, the buckle 2 includes a bottom plate 20 that fits the handheld wall of the ultrasonic probe, a pen cover 21 for clamping the marker pen 3 is provided in the middle of the front of the bottom plate 20, and arc-shaped pressing blocks 22 with arc-shaped surfaces bent downward and extending toward the two sides of the bottom plate 20 are provided on both outer sides of the pen cover 21.

[0023] Figure 3As shown, the marking pen 3 comprises an outer sleeve 30, an inner sleeve 31 and a pen core 32 which are sleeved in sequence; an inner sleeve annular baffle 33 is provided on the inner side of the bottom of the inner sleeve 31, and the pen core 32 is inserted into the inner sleeve 31, the diameter of the pen core 32 is smaller than the inner diameter of the ring body of the inner sleeve annular baffle 33 and the length is greater than the inner sleeve 31, and the outer wall surface of the pen core 32 is provided with a pen core annular push plate 34, and the outer diameter of the ring body of the pen core annular push plate 34 is smaller than The inner diameter of the inner sleeve 31 is such that the pen core can move up and down in the inner sleeve; a first spring member 35 is sleeved between the pen core annular push plate 34 and the inner sleeve annular baffle 33, and a pressing member 36 is provided at the top of the pen core 32. When the first spring member 35 is in an uncontracted state, the tip end of the pen core 32 is retracted into the inner sleeve 31; when the first spring member 35 is pressed by the pressing member, the tip end of the pen core 32 extends out from the bottom of the inner sleeve 31. An outer sleeve annular baffle 37 is provided on the inner side of the bottom of the outer sleeve 30, the outer diameter of the inner sleeve 31 is smaller than the inner diameter of the ring body of the outer sleeve annular baffle 37 and the length is greater than the outer sleeve 30, and a sleeve annular push plate 38 is provided on the outer wall surface in the middle part of the inner sleeve 31, and the outer diameter of the sleeve annular push plate 38 is smaller than the inner diameter of the outer sleeve 30. In this way, the inner sleeve can move up and down in the outer sleeve, and a second spring member 39 is sleeved between the sleeve annular push plate 38 and the outer sleeve annular baffle 37, and the inner sleeve can be moved downward for a certain distance by compression of the second spring member.

[0024] When in use, the operator places the pressing piece with his finger to press the pen core downward, and the pen core pushes the first spring piece downward, and the pen core extends out of the bottom opening of the inner sleeve; when the first spring piece is pressed down to the limit, the pen core pushes the inner sleeve downward, and the inner sleeve pushes the second spring piece downward, and when the inner sleeve is pressed down to the limit, the pen tip of the pen core is flush with the front end of the probe or slightly extends out of the front side of the probe; at this time, the operator can mark the marking position, and when the operator's finger is withdrawn from the pressing piece, the inner sleeve moves up with the restoring force of the first spring piece and the second spring piece, and the pen core retracts into the inner sleeve. The whole process realizes the long-distance extension and retraction of the pen core, so that the sleeve position has a sufficient distance from the front end of the probe, avoiding the influence of the marker on the operation of the probe, thereby ensuring the flexibility of the operator in using the probe.

[0025] Example 2

[0026] Based on Example 1, the movable positioning pen on the ultrasonic probe is improved as follows.

[0027] The pressing member 36 may also be designed as an annular set whose central axis is perpendicular to the central axis of the pen core, so as to facilitate the pressing operation of the operator.

[0028] To prevent the coupling agent from accidentally getting on the lower opening of the inner sleeve, which may cause the refill and pen tip to be contaminated and affect the marking of the marker, Figure 4As shown, a protective film 4 is provided at the lower opening of the inner sleeve 31 , and the protective film 4 is a plastic film with a cross-shaped opening in the middle.

[0029] The pen cap 21 is provided with a locking hole, and a locking screw 5 is inserted into the locking hole and pressed against the surface of the outer sleeve. The position of the outer sleeve can be adjusted by tightening the locking screw. The surface of the arc-shaped pressure block 22 is provided with a strip convex ridge 29, which has an anti-slip effect. In addition, the two sides of the buckle 2 can also be set as wings 61 connected by a number of small springs 60. The shape of the wings 61 is adapted to the two side corners of the ultrasonic probe. The wings are extended and retracted to adapt to different ultrasonic probes, and are more widely used.

Claims

1. A movable positioning pen on an ultrasonic probe, comprising an ultrasonic probe and a fixing component detachably mounted on the ultrasonic probe, characterized in that: The fixing assembly includes a buckle, a marker pen detachably fixed to the front side of the buckle, and an elastic band connecting the two side ends of the buckle, the buckle includes a bottom plate that fits the hand-held wall of the ultrasonic probe, a pen cap for clamping the marker pen is provided at the front of the middle part of the bottom plate, and arc-shaped pressing blocks with arc-shaped surfaces bent downward and extending toward the two sides of the bottom plate are provided on the two outer sides of the pen cap; The marking pen comprises an outer sleeve, an inner sleeve and a refill which are sequentially sleeved; an inner sleeve annular baffle is provided on the inner side of the bottom of the inner sleeve, the refill is inserted into the inner sleeve and has a greater length than the inner sleeve, an annular push plate is provided on the outer wall of the refill, a first spring member is sleeved between the annular push plate of the refill and the annular baffle of the inner sleeve, a pressing member is provided on the top of the refill, and when the first spring member is not in a contracted state, the tip end of the refill is in the inner sleeve; an outer sleeve annular baffle is provided on the inner side of the bottom of the outer sleeve, the inner sleeve is inserted into the outer sleeve and has a greater length than the outer sleeve, a sleeve annular push plate is provided on the outer wall of the inner sleeve, and a second spring member is sleeved between the sleeve annular push plate and the annular baffle of the outer sleeve.

2. The movable positioning pen on the ultrasonic probe according to claim 1, characterized in that: The pressing piece is an annular set with a central axis perpendicular to the central axis of the pen core.

3. The movable positioning pen on the ultrasonic probe according to claim 1, characterized in that: The lower end opening of the inner sleeve is provided with a protective film, and the protective film is a plastic film with a cross-shaped opening in the middle.

4. The movable positioning pen on the ultrasonic probe according to claim 1, characterized in that: The pen cover is provided with a locking hole, and a locking screw abutting against the surface of the outer sleeve is inserted into the locking hole.

5. The movable positioning pen on the ultrasonic probe according to claim 1, characterized in that: The surface of the arc-shaped pressing block is provided with strip-shaped convex edges.

6. The movable positioning pen on the ultrasonic probe according to claim 1, characterized in that: The two sides of the buckle are wings connected by a plurality of small springs, and the shape of the wings is adapted to the two side corners of the ultrasonic probe.

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