Medical laser optical fiber with protection device

Abstract

The utility model provides a medical laser optical fiber with a protection device. The medical laser optical fiber comprises an optical fiber body, the optical fiber comprises an optical fiber body and further comprises a sheath, the sheath is arranged at the bottom end of the optical fiber body in a surrounding mode, a fixing column is fixedly installed in the bottom end of the sheath, a middle hole is formed in the middle of the fixing column, and the bottom end of the optical fiber body is fixedly inserted into the middle hole; the end protection mechanism can be turned over, and the end protection mechanism covers the bottom end of the sheath so as to shield and protect the bottom end of the optical fiber body; the inner wall of the movable sleeve is in clearance fit with the outer wall of the sheath, and the bottom end of the movable sleeve is connected with the end protection mechanism; a first spring is further arranged between the movable sleeve and the protective sleeve. And the stainless steel armor sleeve is sleeved outside the optical fiber body at the top of the sheath. The detection end of the optical fiber body can be shielded through the end protection mechanism for protection; and the stainless steel armor sleeve protects the non-detection end of the optical fiber body.

Description

Technical Field

[0001] The utility model relates to the field of medical laser fibers, in particular to a medical laser fiber with a protection device. Background Art

[0002] Medical laser fibers can be used for relevant detections in open surgeries such as parathyroid surgeries, and can also be used for applications such as spectral detection of wound tissues.

[0003] For example, in the existing patent document "CN220309113U A Handheld Intraoperative Parathyroid Fluorescence Detector", the fiber end, that is, the fiber at the probe position, is directly exposed to the outside world, lacking a protection design. In the non-detection state, it is always exposed to the outside, which may cause dust and dirt to adhere, and may thus affect its performance. Summary of the Utility Model

[0004] The utility model provides a medical laser fiber with a protection device to solve the technical problem that the end of the fiber used for detection lacks protection.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a medical laser fiber with a protection device, including a fiber body; further including: a sheath, the sheath is disposed to surround the bottom end of the fiber body, and a fixing column is fixedly installed inside the bottom end of the sheath. A middle hole is provided in the middle of the fixing column, and the bottom end of the fiber body is fixedly inserted into the middle hole; an end protection mechanism, the end protection mechanism is flipable and resetable, and the end protection mechanism covers the bottom end of the sheath to shield and protect the bottom end of the fiber body; a movable sleeve, the inner wall of the movable sleeve is in clearance fit with the outer wall of the sheath, and the bottom end of the movable sleeve is connected to the end protection mechanism; a first spring is further provided between the movable sleeve and the sheath; a stainless steel armor sleeve, a stainless steel armor sleeve is sleeved outside the fiber body at the top of the sheath.

[0007] In this technical solution, the end protection mechanism can be used to shield the detection end of the fiber body for protection; while the stainless steel armor sleeve protects the non-detection end of the fiber body.

[0008] Preferably, the end protection mechanism includes a protection cover, a gasket, a connecting frame, a fixing seat and a hinge column; the protection cover is fixedly connected with the gasket, and the gasket covers the bottom end face of the sheath. The protection cover is fixedly connected with the connecting frame. The connecting frame is hinged to the fixing seat through the hinge column, and the fixing seat is fixedly connected to the bottom end of the movable sleeve; a reset torsion spring is sleeved on the hinge column, and both ends of the reset torsion spring are fixedly connected to the connecting frame and the fixing seat respectively.

[0009] In this technical solution, the end protection mechanism is hinged and installed through a protective cover, which can be turned over and opened, and is used for closing after opening through the restoring elastic force of a restoring torsion spring.

[0010] Preferably, a baffle is fixedly connected to the outer edge of the top end of the movable sleeve, a pressing seat is fixedly connected to the top end of the sheath, the first spring is sleeved on the sheath, and both ends of the first spring are respectively fixedly connected to the baffle and the pressing seat.

[0011] In this technical solution, the first spring realizes the elastic connection between the movable sleeve and the sheath. After the relative movement between the two is carried out manually, the first spring makes the two reset through the elastic force.

[0012] Preferably, a plug is fixedly connected to the bottom of the pressing seat; a slot adapted for the plug to insert is opened on the top surface of the baffle, and a self-locking mechanism is arranged on one side of the slot.

[0013] In this technical solution, when the relative movement between the movable sleeve and the sheath is carried out to push open the end protection mechanism, the plug is inserted into the slot, and then self-locking is carried out through the self-locking mechanism to maintain the position between the movable sleeve and the sheath.

[0014] Preferably, a hole body is opened on one side of the plug, and a permanent magnet is fixedly installed on the other side of the plug, and one end face of the permanent magnet is flush with one end of the hole body.

[0015] In this technical solution, the hole body is used for the iron plug of the self-locking mechanism to insert, and its insertion is driven by the magnetic attraction of the permanent magnet.

[0016] Preferably, the self-locking mechanism includes a movable rod and an iron plug. A sliding groove communicated with the slot is opened on the baffle, the movable rod is slidably installed in the sliding groove, an inner hole and a port hole are opened at one end of the movable rod close to the slot, a third spring is arranged in the inner hole, one end of the iron plug is in clearance fit connection with the inner hole, and the iron plug penetrates through the port hole; both ends of the third spring are respectively fixedly connected to one end of the iron plug and the inner hole wall.

[0017] In this technical solution, the self-locking mechanism is used to limit the plug in the slot, and the locking can be released by pulling the movable rod.

[0018] Preferably, the inner hole is communicated with the port hole, and the aperture of the port hole is smaller than the aperture of the inner hole.

[0019] In this technical solution, through the design that the port hole is smaller than the inner hole, the iron plug is prevented from detaching from the inner hole.

[0020] Preferably, the self-locking mechanism further includes a pull plate, and the pull plate is fixedly connected to one end of the movable rod away from the iron plug.

[0021] In this technical solution, the draw plate is used for pulling the movable rod.

[0022] Preferably, a second spring is arranged in the chute, a convex block is fixedly connected to the movable rod, and two ends of the second spring are respectively abutted against the chute wall and the convex block.

[0023] In this technical solution, the second spring is used for the elastic reset of the movable rod after being pulled.

[0024] Preferably, the stainless steel sheathing is of a hollow structure, and a plurality of fixed cores are fixedly and fittingly installed inside the stainless steel sheathing at equal intervals, and the fixed cores are sleeved on the optical fiber body.

[0025] In this technical solution, the stainless steel sheathing is used for protecting the optical fiber body.

[0026] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present utility model.

[0027] The positive and progressive effects of the present utility model are as follows:

[0028] For the medical laser optical fiber with a protection device proposed above, the end protection mechanism is used to cover the detection part at the end of the optical fiber body to protect the end, avoiding being always exposed to the outside during the non-detection state, and its end being attached with dirt or dust. The non-detection end of the optical fiber body is surrounded by the stainless steel sheathing to achieve protection, greatly improving the overall protection effect; further, through the rotatable and resetable design of the movable sleeve, the first spring and the end protection mechanism, before detection, through the relative movement between the movable sleeve and the sheath, the sheath can push open the end protection mechanism, exposing the end of the optical fiber body for detection. After detection, through the reset elastic force of the first spring, the movable sleeve and the sheath are reset, and the end protection mechanism loses its pushing-open effect and also resets for protection after detection. The exposure and shielding operations of the end of the optical fiber body are simple, providing convenience for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the whole of the present utility model.

[0030] Figure 2 It is a structural schematic diagram of the end protection mechanism of the present utility model.

[0031] Figure 3 For the present utility model Figure 1 The enlarged structural schematic diagram of part A.

[0032] Figure 4 It is a plane structural schematic diagram of the whole of the present utility model.

[0033] Figure 5 For this utility model Figure 4 It is a schematic structural view of the enlarged part B in the utility model.

[0034] Figure 6 It is a schematic structural view of the self-locking mechanism and the plug block after the plug block of the utility model is inserted into the slot.

[0035] Figure 7 It is a schematic structural view inside the stainless steel sheath of the utility model.

[0036] Explanation of reference numerals in the drawings

[0037] 1. Sheath;

[0038] 2. Movable sleeve;

[0039] 3. Pressure seat;

[0040] 4. First spring;

[0041] 5. Baffle; 501. Slot;

[0042] 6. Self-locking mechanism; 601. Pulling plate; 602. Movable rod; 603. Chute; 604. Protrusion; 605. Second spring; 606. Third spring; 607. Inner hole; 608. Iron plug; 609. Port hole;

[0043] 7. End protection mechanism; 701. Protection cover; 702. Gasket; 703. Connecting frame; 704. Fixed seat; 705. Hinge post;

[0044] 8. Plug block; 801. Hole body; 802. Permanent magnet;

[0045] 9. Optical fiber body;

[0046] 10. Fixed seat;

[0047] 11. Stainless steel sheath;

[0048] 12. Fixed ferrule. Specific implementation mode

[0049] The following further illustrates the present utility model by way of examples, but does not limit the present utility model to the scope of the described examples.

[0050] Such as Figures 1-7As shown in the figure, a medical laser optical fiber with a protection device includes an optical fiber body 9; it also includes: a sheath 1, the sheath 1 is arranged to surround the bottom end of the optical fiber body 9, and a fixing column 10 is fixedly installed inside the bottom end of the sheath 1. A middle hole is provided in the middle of the fixing column 10, and the bottom end of the optical fiber body 9 is fixedly inserted into the middle hole; an end protection mechanism 7, the end protection mechanism 7 can be flipped and reset, and the end protection mechanism 7 covers the bottom end of the sheath 1 to shield and protect the bottom end of the optical fiber body 9; a movable sleeve 2, the inner wall of the movable sleeve 2 is in clearance fit with the outer wall of the sheath 1, and the bottom end of the movable sleeve 2 is connected to the end protection mechanism 7; a first spring 4 is also provided between the movable sleeve 2 and the sheath 1; a stainless steel armor sleeve 11, a stainless steel armor sleeve 11 is sleeved outside the optical fiber body 9 at the top of the sheath 1.

[0051] As Figure 1 , Figure 2 And as shown in Figure 4, as a specific technical solution, the end protection mechanism 7 includes a protection cover 701, a gasket 702, a connecting frame 703, a fixed seat 704 and a hinge column 705; the protection cover 701 is fixedly connected with the gasket 702, and the gasket 702 covers the bottom end face of the sheath 1. The protection cover 701 is fixedly connected with the connecting frame 703. The connecting frame 703 is hinged to the fixed seat 704 through the hinge column 705, and the fixed seat 704 is fixedly connected to the bottom end of the movable sleeve 2; a reset torsion spring is sleeved on the hinge column 705, and both ends of the reset torsion spring are fixedly connected to the connecting frame 703 and the fixed seat 704 respectively; a baffle 5 is fixedly connected to the outer edge of the top end of the movable sleeve 2, and a pressing seat 3 is fixedly connected to the top end of the sheath 1. The first spring 4 is sleeved on the sheath 1, and both ends of the first spring 4 are fixedly connected to the baffle 5 and the pressing seat 3 respectively. As Figure 2 As shown in the figure, the end protection mechanism 7 covers the bottom end of the sheath 1 through the protection cover 701, and cooperates with the gasket 702 to seal the bottom end of the sheath 1, thereby shielding and protecting the bottom end of the optical fiber body 9, that is, the end for detection. During the opening process, by holding the movable sleeve 2 and pressing the sheath 1, relative movement occurs between the sheath 1 and the movable sleeve 2, and at the same time, the first spring 4 is compressed. The bottom end of the sheath 1 presses against the protection cover 701, and through the hinge of the hinge column 705, the protection cover 701 and the connecting frame 703 are flipped together to open the bottom end of the sheath 1, and at the same time, the reset torsion spring is twisted; when re-covering and protecting, by releasing the sheath 1 and the movable sleeve 2, due to the elastic force of the first spring 4, the sheath 1 and the movable sleeve 2 are reset, and the protection cover 701 is reset by the elastic force of the reset torsion spring and re-covers.

[0052] Among them, the gasket 702 is made of rubber or silica gel material.

[0053] When two fingers clamp the movable sleeve 2, the baffle 5 is used for finger contact and blocking. The thumb can press the pressing block to realize the relative movement between the movable sleeve 2 and the sheath 1.

[0054] As Figures 3-6 shown, as a specific technical solution, an insertion block 8 is fixedly connected to the bottom of the pressing seat 3; a slot 501 adapted for the insertion of the insertion block 8 is formed in the top surface of the baffle 5, and a self-locking mechanism 6 is arranged on one side of the slot 501; a hole body 801 is formed in one side of the insertion block 8, and a permanent magnet 802 is fixedly installed on the other side of the insertion block 8, and one end surface of the permanent magnet 802 is flush with one end of the hole body 801; the self-locking mechanism 6 includes a movable rod 602 and an iron insertion post 608, the baffle 5 is provided with a sliding groove 603 communicated with the slot 501, the movable rod 602 is slidably installed in the sliding groove 603, an inner hole 607 and a port hole 609 are formed in one end of the movable rod 602 close to the slot 501, a third spring 606 is arranged in the inner hole 607, one end of the iron insertion post 608 is in clearance fit connection with the inner hole 607, and the iron insertion post 608 penetrates through the port hole 609; both ends of the third spring 606 are fixedly connected with one end of the iron insertion post 608 and the inner hole 607 wall respectively; the inner hole 607 is communicated with the port hole 609, and the aperture of the port hole 609 is smaller than that of the inner hole 607; the self-locking mechanism 6 further includes a pulling plate 601, and the pulling plate 601 is fixedly connected with one end of the movable rod 602 far from the iron insertion post 608; a second spring 605 is arranged in the sliding groove 603, a convex block 604 is fixedly connected to the movable rod 602, and both ends of the second spring 605 are abutted against the sliding groove 603 wall and the convex block 604 respectively.

[0055] Among them, the self-locking mechanism 6 is used for positioning and locking after the above-mentioned end protection mechanism 7 is pushed open. The specific principle is as follows. After the movable sleeve 2 and the sheath 1 move relatively, the insertion block 8 is inserted into the slot 501, the hole body 801 is aligned with the iron insertion post 608, and the iron insertion post 608 is magnetically attracted by the magnetic attraction of the permanent magnet 802, so that the iron insertion post 608 is inserted into the hole body 801 to realize self-locking. At the same time, when the iron insertion post 608 moves, the third spring 606 is stretched to generate an elastic force.

[0056] Before the end protection mechanism 7 is reset, the locking of the self-locking mechanism 6 needs to be released, and then through the elastic force of the first spring 4 and the elastic force of the reset torsion spring, the end protection mechanism 7 is reset. The specific operation of unlocking is as follows, as Figure 6As shown, by pulling the drawer plate 601, the drawer plate 601 drives the movable rod 602 to slide along the length direction in the chute 603. At the same time, the second spring 605 is compressed through the convex block 604, generating a compressive deformation. The movable rod 602 drives the iron plug 608 to be pulled out from the hole body 801 to achieve unlocking. After unlocking, the plug 8 leaves the slot 501. Then, the drawer plate 601 is released, and the drawer plate 601 and the movable rod 602 are reset by the elastic force of the second spring 605, while the iron plug 608 is reset by the elastic force of the third spring 606, and the iron plug 608 is received into the inner hole 607.

[0057] The stainless steel sheath 11 has a hollow structure, and a plurality of fixed cores 12 evenly distributed at equal intervals are fixedly embedded and installed inside the stainless steel sheath 11. The fixed cores 12 are sleeved on the optical fiber body 9.

[0058] The stainless steel sheath 11 is used for the protection of the non-bottom end of the optical fiber body 9. To reduce the weight, the stainless steel sheath 11 adopts a hollow design, and the fixed cores 12 are used for filling. The fixed cores 12 are made of silica gel or rubber.

[0059] The present invention is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present invention. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A medical laser optical fiber with a protective device, comprising an optical fiber body (9); characterized in that: Also includes: A sheath (1), the sheath (1) being arranged around the bottom end of the optical fiber body (9), and a fixing column (10) being fixedly installed in the bottom end of the sheath (1), a middle hole being arranged in the middle of the fixing column (10), and the bottom end of the optical fiber body (9) being fixedly inserted into the middle hole; An end protection mechanism (7), the end protection mechanism (7) is flippable and repositionable, and the end protection mechanism (7) covers the bottom end of the sheath (1) to shield and protect the bottom end of the optical fiber body (9); A movable sleeve (2), wherein the inner wall of the movable sleeve (2) and the outer wall of the protective sleeve (1) are clearance-matched, and the bottom end of the movable sleeve (2) is connected to an end protection mechanism (7); a first spring (4) is also provided between the movable sleeve (2) and the protective sleeve (1); A stainless steel armor sleeve (11) is provided on the outside of the optical fiber body (9) located at the top of the sheath (1).

2. The medical laser optical fiber with a protective device as claimed in claim 1, characterized in that: The end protection mechanism (7) comprises a protection cover (701), a gasket (702), a connecting frame (703), a fixing seat (704) and a hinge column (705); the protection cover (701) is fixedly connected to the gasket (702), and the gasket (702) covers the bottom end surface of the sleeve (1); the protection cover (701) is fixedly connected to the connecting frame (703), the connecting frame (703) is hinged to the fixing seat (704) through the hinge column (705), and the fixing seat (704) is fixedly connected to the bottom end of the movable sleeve (2); a reset torsion spring is sleeved on the hinge column (705), and the two ends of the reset torsion spring are respectively fixedly connected to the connecting frame (703) and the fixing seat (704).

3. The medical laser optical fiber with a protective device as claimed in claim 1, characterized in that: A baffle (5) is fixedly connected to the outer edge of the top end of the movable sleeve (2), a pressure seat (3) is fixedly connected to the top end of the protective sleeve (1), the first spring (4) is sleeved on the protective sleeve (1), and the two ends of the first spring (4) are respectively fixedly connected to the baffle (5) and the pressure seat (3).

4. The medical laser optical fiber with a protective device as claimed in claim 3, characterized in that: The bottom of the pressure seat (3) is fixedly connected with an insert block (8); the top surface of the baffle (5) is provided with a slot (501) for inserting the insert block (8), and a self-locking mechanism (6) is provided on one side of the slot (501).

5. The medical laser optical fiber with a protective device as claimed in claim 4, characterized in that: A hole (801) is provided on one side of the plug block (8), and a permanent magnet (802) is fixedly mounted on the other side of the plug block (8), with one end surface of the permanent magnet (802) being flush with one end of the hole (801).

6. The medical laser optical fiber with a protective device as claimed in claim 4, characterized in that: The self-locking mechanism (6) includes a movable rod (602) and an iron plug (608); the baffle (5) is provided with a slide groove (603) connected to the slot (501); the movable rod (602) is slidably installed in the slide groove (603); an end of the movable rod (602) close to the slot (501) is provided with an inner hole (607) and a port hole (609); a third spring (606) is arranged in the inner hole (607); one end of the iron plug (608) is connected to the inner hole (607) with a clearance fit, and the iron plug (608) passes through the port hole (609); the two ends of the third spring (606) are respectively fixed to one end of the iron plug (608) and the wall of the inner hole (607).

7. The medical laser optical fiber with a protective device as claimed in claim 6, characterized in that: The inner hole (607) is connected to the port hole (609), and the diameter of the port hole (609) is smaller than the diameter of the inner hole (607).

8. The medical laser optical fiber with a protective device as claimed in claim 6, characterized in that: The self-locking mechanism (6) further comprises a pull-out plate (601), wherein the pull-out plate (601) is fixedly connected to an end of the movable rod (602) away from the iron plug post (608).

9. The medical laser optical fiber with a protective device as claimed in claim 6, characterized in that: A second spring (605) is arranged in the slide groove (603), and a protrusion (604) is fixedly connected to the movable rod (602). Two ends of the second spring (605) are respectively in contact with the wall of the slide groove (603) and the protrusion (604).

10. The medical laser optical fiber with a protective device according to claim 1, characterized in that: The stainless steel armor sleeve (11) is a hollow structure, and a plurality of fixed inserts (12) distributed at equal intervals are fixedly embedded and installed inside the stainless steel armor sleeve (11), and the fixed inserts (12) are sleeved onto the optical fiber body (9).

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