CN216675745U

CN216675745U - Binding structure of newborn blood oxygen probe and newborn blood oxygen probe

Info

Publication number: CN216675745U
Application number: CN202123029300.7U
Authority: CN
Inventors: 杨崧
Original assignee: Shenzhen Lanreg Biomedical Technology Co ltd
Current assignee: Shenzhen Lanreg Biomedical Technology Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-07
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a binding structure of a newborn blood oxygen probe and the newborn blood oxygen probe, wherein a cavity structure for accommodating a light emitting tube and a receiving tube is arranged on a binding main body of the binding structure, the cavity structure is provided with a first light hole and a second light hole for light signals to pass through, the first light hole and the second light hole are arranged oppositely, and the first light hole and the second light hole are arranged on the inner surface; the outer surface of the first end of the main band body is provided with the first fixing portion, the second end of the main band body is provided with the second fixing portion and a band hole for the first end and the first fixing portion to penetrate through, and the second fixing portion is arranged on the inner surface of the second end. Can improve the binding comfort of the photoelectric probe of the neonate, avoid the probe binding structure from damaging the skin of the neonate, and ensure the firmness and reliability of binding the photoelectric detection device.

Description

Binding structure of newborn blood oxygen probe and newborn blood oxygen probe

Technical Field

The utility model relates to a binding structure on a physiological parameter measurement repeated probe for photoelectric signals, in particular to the technical field of blood oxygen measurement, and particularly relates to a binding structure of a newborn blood oxygen probe and the newborn blood oxygen probe.

Background

In the structure of the blood oxygen probe for the newborn in the existing market, the bandage structure is applied to the sole of the newborn in an integral winding mode. And the fixing structure after the bandage is wound has two main ways on the market: one is to fix the new-born infant through a perforation by friction, and the main problems of the method are that the operation is inconvenient when the feet of the new-born infant are bound, the friction force of the pulling binding band is too large, the habitual force binding of a nurse is caused, a lot of new-born infants are bound too tightly to cause pressure injury, and the pressure can influence the accuracy of measurement. Another bandage structure is through the mode that increases hook-and-loop fastener hook face and magic tape hair side on the magic tape bandage, can fine solution magic tape bind too tight problem, however, this kind of structure has two kinds of problems nevertheless: firstly, the magic tape hair side can contact with the skin of a newborn on the inner side, if the magic tape hair side contacts with the skin of the newborn for a long time, the skin can be abraded, the repeated use of the magic tape hair side of the blood oxygen probe can induce the dirt storage and the dirt collection, the thorough cleaning and disinfection can not be realized, and the infection risk can be induced by the two-phase synthesis; secondly, in order to adapt to different newborn sizes, the tail length of the magic tape needs to be lengthened, the extra bandage can cause the pulling and loosening in the using process, so that the binding of the probe is loosened, the displacement of the light emitting device and the receiving device is induced, and the blood oxygen measurement precision is reduced.

Disclosure of Invention

In view of the defects of the prior art, the utility model aims to provide a binding structure of a newborn blood oxygen probe and the newborn blood oxygen probe, aiming at improving the binding comfort of a newborn photoelectric probe, avoiding the damage of the probe binding structure to the skin of the newborn and ensuring the firmness and reliability of binding a photoelectric detection device.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a binding structure of a newborn blood oxygen probe, which comprises: a main band body having an inner surface and an outer surface, and having a first end and a second end that are physically separated; the main band body is provided with a cavity structure for accommodating a light emitting tube and a receiving tube, the cavity structure is provided with a first light hole and a second light hole for light signals to pass through, the first light hole and the second light hole are arranged oppositely, and the first light hole and the second light hole are both arranged on the inner surface;

the first end of the main bandage body is provided with the first fixing part, the first fixing part is arranged on the outer surface of the first end, the second end of the main bandage body is provided with the second fixing part and a bandage opening through which the first end and the first fixing part pass, the second fixing part is arranged on the inner surface of the second end, and the bandage opening is arranged between the cavity structure close to the second end and the second fixing part; the first fixing part and the second fixing part can be detachably and fixedly connected.

The first fixing part and the second fixing part are fixed on the first end and the second end in a bonding mode;

the first fixing part is a magic tape hair surface, the second fixing part is a magic tape hook surface, and detachable fixed connection can be realized in a magic tape adhesion mode; or the second fixing part is a magic tape hair surface and the first fixing part is a magic tape hook surface, and the detachable fixed connection can be realized in a magic tape adhesion mode;

the hook surface of the magic tape is a plastic-injection hook or a textile hook, and the loop surface of the magic tape is a hair-catching magic tape or a non-hair-catching magic tape.

Wherein the main body of the bandage is made of disposable soft cloth material or silica gel material; the main band body is of an integrally formed structure;

the main band body is provided with an arc-shaped bent structure, one end of the arc-shaped bent structure extends to form the first end, and the other end of the arc-shaped bent structure extends to form the second end.

The main band body is provided with a first cavity structure and a second cavity structure, the first light transmission hole and the second light transmission hole are respectively arranged on the first cavity structure and the second cavity structure, and the first cavity structure and the second cavity structure are oppositely arranged; providing the strap opening proximate the second end between the cavity structure and the second securing portion; the main band body is provided with an arc-shaped bending structure, one end of the arc-shaped bending structure extends to form a first cavity structure, and then the first cavity structure continues to extend to form the first end; and the other end of the arc-shaped bending structure extends to form a second cavity structure, and then continues to extend to form the second end.

Wherein the thickness of the position of the opening of the bandage is larger than the thickness of the first end and the second end of the main bandage body, and the thickness of the cavity structure is larger than the thickness of the first end and the second end of the main bandage body.

The opening of the bandage is a guide through hole with an inclination angle, the inclination direction of the opening of the bandage forms an obtuse angle with the inner surface, and the inclination direction of the opening of the bandage is parallel to the inner inclined surface of the opening of the bandage.

The outer surface of the main bandage body is further provided with a fixing portion, when the main bandage body is bound, the first end and the first fixing portion penetrate through the open hole of the bandage body, the movable end of the first end penetrates through the outer surface of the main bandage body and is fixed through the fixing portion, the fixing portion is arranged on the cavity structure or the arc-shaped bending structure, and the arc-shaped bending structure is located on the main bandage body and between the first end and the second end.

The utility model also provides a newborn blood oxygen probe, which comprises:

the device comprises a connector, a cable, a light emitting tube for emitting light signals, a receiving tube for receiving light signals and a binding structure adopting any one of the above structures;

the band main body is provided with a wire burying pipe groove, the wire burying pipe groove is communicated with a cavity structure on the band structure, one end of the cable is connected with the light emitting tube and the receiving tube in the cavity structure through the wire burying pipe groove, and the other end of the cable is connected with the connector.

A first net tail structure is arranged at the joint of the cable and the connector, and a second net tail structure is arranged at the joint of the cable and the main band body; the cable is a double-row line or a round multi-bunch line; the tail end of one end, far away from the connector, of the cable is provided with a branched structure, one branch end of the branched structure is connected with the light emitting tube, the other branch end of the branched structure is connected with the receiving tube, and the position of the joint of the branched structure and the other end of the cable is adjustable.

The utility model discloses a bandage, including cavity structure, luminotron, receiver tube, first printing opacity body, second printing opacity body, luminotron, receiver tube, luminotron, receiving tube, the luminotron is fixed through first fixed bolster in the cavity structure, the receiver tube is fixed through the second fixed bolster in the cavity structure, the luminotron is fixed in the first fixed bolster, the luminotron is fixed in the second fixed bolster, first printing opacity body cover on the second printing opacity hole, cover the back first printing opacity body with the surface of second printing opacity body with the internal surface parallel and level of bandage main part, luminotron and receiver tube are fixed through the bonding in first fixed bolster and the second fixed bolster, first fixed bolster with the second fixed bolster through the encapsulating mould plastics with bandage main part integrated into one piece.

The binding band structure comprises a binding band main body, a hook-and-loop fastener surface and a hook-and-loop fastener matte surface. Wherein the hair side is arranged at the outer side of one end of the bandage, and the hook side is arranged at the inner side of the other end of the bandage. Therefore, the binding belt mode can ensure that the hair surface can not contact with the skin of the newborn, the risk of skin abrasion can not exist when the hair surface contacts with the skin for a long time, and contact infection of the skin of the newborn caused by poor cleaning and disinfection can not occur. Secondly, the bandage trompil that first end and the first fixed part of bandage main part passed is followed the surface extension of bandage main part, and the first fixed part of second end internal surface fixation extends the back along the surface of the first end of bandage main part and is fixed with the first fixed part of the surface of first end, can increase the fixed power between them through the fixed power that increases hook face and matte. Under the fixing mode of the bandage, the extra bandage at the first end cannot cause pulling looseness in the using process, the looseness of the bandage of the probe cannot be caused, and the displacement of the light-emitting device and the receiving device cannot be induced due to the looseness, so that the blood oxygen measuring precision is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a newborn blood oxygen probe provided by the present invention;

FIG. 2 is a schematic structural diagram of a newborn blood oxygen probe according to the present invention;

FIG. 3 is a schematic cross-sectional view of a binding structure according to the present invention;

FIG. 4 is an enlarged partial schematic view of the strap aperture;

FIG. 5 is a top view of a newborn blood oxygen probe according to the present invention;

fig. 6 is a bottom view of a newborn blood oxygen probe provided by the present invention.

Remarking: 100. a main band body; 200. a connector; 300. a cable; 410. a light emitting tube; 420. a receiving tube; 121. a first fixed part; 111. a second fixed part; 120. a first end; 110. a second end; 130. an inner surface; 140. an outer surface; 141. a first light-transmitting hole; 142. a second light-transmitting hole; 150. a cavity structure; 301. one end of cable 300; 302. the other end of the cable 300; 401. a first net tail structure; 402. a second web tail structure; 403. a joint; 411. a first fixed bracket; 421. a second fixed bracket; 160. an arc-shaped bending structure; 112A \112B and an inner inclined plane; 412. a first light transmitting body; 422. a second light transmitting body; 112. and (4) perforating the binding band.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the present invention provides a blood oxygen probe and a binding structure for neonates. The details are as follows.

The utility model provides a newborn blood oxygen probe, which comprises: a connector 200, a cable 300, a light emitting tube 410 for emitting a light signal, a receiving tube 420 for receiving a light signal, and a binding structure.

The binding structure comprises: a main band body 100, a first securing portion 121, and a second securing portion 111, the main band body 100 having an inner surface 130 and an outer surface 140, and having a first end 120 and a second end 110 that are physically separated; a cavity structure 150 for accommodating the light emitting tube and the receiving tube is arranged on the main band body 100, the cavity structure 150 is provided with a first light hole 141 and a second light hole 142 for light signals to pass through, the first light hole 141 and the second light hole 142 are arranged oppositely, and the first light hole 141 and the second light hole 142 are both arranged on the inner surface 130; a first fixing part 121 is arranged on the first end 120 of the main band body 100, the first fixing part 121 is arranged on the outer surface 140 of the first end 120, a second fixing part 111 and a band opening hole 112 for the first end 120 and the first fixing part 121 to pass through are arranged on the second end 110 of the main band body, the second fixing part 111 is arranged on the inner surface 130 of the second end 110, and the band opening hole 112 is arranged between the cavity structure 150 close to the second end 110 and the second fixing part 111; the first fixing portion 121 and the second fixing portion 111 can be detachably and fixedly connected.

The main band body 100 is provided with a wire embedding groove (not shown) which is communicated with the cavity structure 150 of the binding structure 100, one end 301 of the cable 300 is connected with the light emitting tube 410 and the receiving tube 420 in the cavity structure 150 through the wire embedding groove, and the other end 302 of the cable 300 is connected with the connector 200. The conduit-embedding groove is mainly for embedding a cable in the band main body 100.

In order to enhance the pulling force of the cable and prevent the cable from being disconnected during use, in one embodiment, a first web tail structure 401 is disposed at a connection position of the cable 300 and the connector 200, and a second web tail structure 402 is disposed at a connection position of one end 301 of the cable 300 and the main band body 100. The cable here is a double row wire, or a round multi-bundle wire. In addition, in order to facilitate the binding and fixing of the binding band, a branch structure can be arranged at the tail end of one end 301, far away from the connector 200, of the cable 300, one branch end of the branch structure is connected with the light emitting tube, the other branch end of the branch structure is connected with the receiving tube, the position of the joint 403 of the branch structure and the other end 302 of the cable 300 is adjustable, the size of the soles of different neonates can be matched by adjusting the position of the branch structure on the cable, and the binding and fixing device can be worn more conveniently.

In order to assemble and fix the light emitting tube and the receiving tube, in one embodiment, as shown in fig. 3, the light emitting tube 410 is fixed in the cavity structure 150 by the first fixing bracket 411, the receiving tube 420 is fixed in the cavity structure 150 by the second fixing bracket 421, the first light transmission body 412 covers the first light transmission hole 141, the second light transmission body 422 covers the second light transmission hole 142, and the surfaces of the first light transmission body 412 and the second light transmission body 422 are flush with the inner surface of the band main body 100 after covering. The mounting positions of the receiver tube and the light emitting tube may be replaced. The light emitting tube 410 is fixed in the first fixing support 411, and the receiving tube 420 is fixed in the second fixing support 421, so that the light emitting tube and the receiving tube are prevented from shaking in the fixing support to affect the detection result. Next, in one embodiment, the light emitting tube 410 and the receiving tube 420 are fixed in the first fixing bracket 411 and the second fixing bracket 421 by adhesion, and the first fixing bracket 411 and the second fixing bracket 421 are integrally formed with the band main body 100 by potting. The integrated forming can ensure that the photoelectric detection element is more firmly fixed and can also keep good detection effect and detection precision when the probe shakes.

The utility model also provides a binding structure of the newborn blood oxygen probe, which comprises the following components: a main band body 100, a first securing portion 121, and a second securing portion 111, the main band body 100 having an inner surface 130 and an outer surface 140, and having a first end 120 and a second end 110 that are physically separated; a cavity structure 150 for accommodating the light emitting tube and the receiving tube is arranged on the main band body 100, the cavity structure 150 is provided with a first light hole 141 and a second light hole 142 for light signals to pass through, the first light hole 141 and the second light hole 142 are arranged oppositely, and the first light hole 141 and the second light hole 142 are both arranged on the inner surface 130; a first fixing part 121 is arranged on the first end 120 of the main band body 100, the first fixing part 121 is arranged on the outer surface 140 of the first end 120, a second fixing part 111 and a band opening hole 112 for the first end 120 and the first fixing part 121 to penetrate are arranged on the second end 110 of the main band body, the second fixing part 111 is arranged on the inner surface 130 of the second end 110, and the band opening hole 112 is arranged between the cavity structure 150 close to the second end 110 and the second fixing part 111; the first fixing portion 121 and the second fixing portion 111 can be detachably and fixedly connected.

The first fixing portion 121 and the second fixing portion 111 are fixed to the first end 120 and the second end 110 by adhesion. For example, the first fixing portion 121 is a hook and loop fastening surface, and the second fixing portion 111 is a hook and loop fastening surface, and the detachable fixing connection can be realized by a hook and loop fastening manner; or, the second fixing portion 111 is a hook and loop fastener surface and the first fixing portion 121 is a hook and loop fastener surface, and the detachable fixing connection can be realized through a hook and loop fastener adhesion mode. The hook surface of the magic tape is a plastic-injection hook or a textile hook, the loop surface of the magic tape is a hair-catching magic tape or a non-hair-catching magic tape, and the non-hair-catching magic tape comprises a textile net surface structure. The bandage structure contains bandage main part, magic subsides hook face, magic subsides hair side. Wherein the hair side is arranged at the outer side of one end of the bandage, and the hook side is arranged at the inner side of the other end of the bandage. Therefore, the binding belt mode can ensure that the hair surface can not contact with the skin of the newborn, the risk of skin abrasion can not exist when the hair surface contacts with the skin for a long time, and contact infection of the skin of the newborn caused by poor cleaning and disinfection can not occur. Next, the first end 120 of the main band body 100 and the first fixing portion 121 pass through the band opening 112 and extend along the outer surface of the main band body 100, and the first fixing portion 121 fixed to the inner surface of the second end 110 extends along the outer surface of the first end 120 of the main band body 100 and is fixed to the first fixing portion 121 on the outer surface of the first end 120, so that the fixing force of the hook surface and the hair surface can be increased. In such a manner of fixing the binding band, the extra binding band at the first end 120 will not cause the pulling and loosening during the use process, and will not cause the loosening of the binding band of the probe, and because the loosening will not occur, the displacement of the light emitting device and the receiving device will not be induced, thereby improving the measurement accuracy of blood oxygen.

The main band body 100 of the present invention is made of disposable soft cloth or silica gel. Next, the main band body 100 may be integrally formed, or may be formed by pressing multiple layers of cloth materials.

In one embodiment, as shown in fig. 3, main band body 100 is a one-piece structure, with main band body 100 having an arcuate bend 160, with one end of arcuate bend 160 extending to form first end 120 and the other end of arcuate bend 160 extending to form second end 110. In particular, the main band body 100 is a silicone integrally molded structure.

Considering that the blood oxygen probe includes the receiving tube and the transmitting tube, the receiving tube and the transmitting tube need to be respectively placed in two cavity structures, in one embodiment, the main band body 100 has a first cavity structure and a second cavity structure, the first light-transmitting hole 141 and the second light-transmitting hole 142 are respectively arranged on the first cavity structure and the second cavity structure, each cavity structure has one light-transmitting hole, and the first cavity structure and the second cavity structure are oppositely arranged; a strap opening 112 is provided adjacent the second end 110 between the cavity structure and the second fastening portion 111. When the main band body 100 is an integrally formed structure, the main band body has an arc-shaped bending structure 160, and one end of the arc-shaped bending structure 160 extends to form the first cavity structure 150 first, and then continues to extend to form the first end 120; the other end of the curved structure 160 extends to form the second cavity structure 150, and then continues to extend to form the second end 110. The receiving tube and the luminous tube are respectively arranged in a cavity structure, and corresponding optical signals are emitted out through the corresponding arranged light holes to penetrate through a human body or are emitted into the receiving tube through the corresponding light holes.

In one embodiment, as shown in fig. 3 and 4, to provide more secure attachment and to facilitate piercing, the strap apertures 112 are located at a thickness greater than the thickness of the first and second ends 120, 110 of the main strap body 100. The strap opening 112 is a guide through hole having an inclination, and the opening of the strap opening 112 is inclined at an obtuse angle to the inner surface 130. The opening of the strap opening 112 is inclined in a direction parallel to the inner inclined surface 112A \112B of the strap opening 112. Second, the thickness of the cavity structure 150 is greater than the thickness of the first end 120 and the second end 110 of the main band body 100. With a thick strap aperture design, the frictional force securing the first end 120 and the first securing portion 121 within the strap aperture 112 may be increased.

In order to ensure that the movable end is fixed and avoid the influence of external force after the first end 120 and the first fixing part 121 pass through the opening 112 of the bandage, the outer surface of the main bandage body 100 is further provided with a fixing part (not shown in the figure), and when the first end 120 and the first fixing part 121 pass through the opening 112 of the bandage, the movable end of the first end 120 passes through the fixing part along the outer surface of the main bandage body for fixing. This securing portion may be provided on the cavity structure 150 or on the arcuate flexure structure 160, the arcuate flexure structure 160 being located between the first end 120 and the second end 110. As shown in FIG. 3, the curved bend 160 may be the curved bend 160 of FIG. 3, where one end of the curved bend 160 extends to form the first end 120 and the other end of the curved bend 160 extends to form the second end 110. If there are two cavity structures, one end of the curved structure 160 extends to form the first cavity structure 150, and then continues to extend to form the first end 120; the other end of the curved structure 160 extends to form the second cavity structure 150, and then continues to extend to form the second end 110, and the curved structure 160 is provided with the above-mentioned fixing portion. The fixing part can be of an open hole design or can be sleeved on the main band body by a fixing ring structure.

The novel binding belt mode can ensure that the hair surface can not contact with the skin of the newborn, the risk of skin abrasion can not exist in long-time contact, and the contact infection of the skin of the newborn caused by poor cleaning and disinfection can not occur. Secondly, the extra bandage can not cause the pulling and loosening in the using process, can not cause the loosening of the bandage of the probe, can not induce the displacement of the light-emitting device and the receiving device, and thereby greatly improves the measurement precision of the blood oxygen.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A binding structure of a newborn blood oxygen probe is characterized by comprising: a main band body, a first fixing part and a second fixing part,

the main band body having an inner surface and an outer surface, and having a first end and a second end that are physically separated;

the main band body is provided with a cavity structure for accommodating a light emitting tube and a receiving tube, the cavity structure is provided with a first light hole and a second light hole for light signals to pass through, the first light hole and the second light hole are arranged oppositely, and the first light hole and the second light hole are both arranged on the inner surface;

2. The binding structure of a newborn blood oxygen probe as claimed in claim 1, wherein the first and second fixing portions are fixed to the first and second ends by adhesion;

3. The binding structure of the newborn blood oxygen probe of claim 1, wherein the main body of the binding band is made of disposable soft cloth or silica gel; the main band body is of an integrally formed structure;

4. The binding structure of a newborn blood oxygen probe according to claim 1, wherein the main binding band body has a first cavity structure and a second cavity structure, the first light transmission hole and the second light transmission hole are respectively provided on the first cavity structure and the second cavity structure, and the first cavity structure and the second cavity structure are oppositely provided; providing the strap opening proximate the second end between the cavity structure and the second securing portion; the main band body is provided with an arc-shaped bending structure, one end of the arc-shaped bending structure extends to form a first cavity structure, and then the first cavity structure continues to extend to form the first end; and the other end of the arc-shaped bending structure extends to form a second cavity structure, and then continues to extend to form the second end.

5. The binding structure of a newborn blood oxygen probe according to claim 1, wherein the thickness of the position of the opening of the binding band is larger than the thickness of the first end and the second end of the main binding band body, and the thickness of the cavity structure is larger than the thickness of the first end and the second end of the main binding band body.

6. The binding structure of a newborn blood oxygen probe according to claim 1, wherein the binding band opening is a guide through hole having a slope, the opening slope direction of the binding band opening is an obtuse angle with the inner surface, and the opening slope direction of the binding band opening is parallel to the inner slope of the binding band opening.

7. The binding structure of a newborn blood oxygen probe according to claim 1, wherein fixing portions are further disposed on an outer surface of the main binding band body, and when the first end and the first fixing portions are passed through the binding band openings during binding, a movable end of the first end is fixed along the outer surface of the main binding band body by passing through the fixing portions, and the fixing portions are disposed on the cavity structure, or on an arc-shaped bent structure, which is located between the first end and the second end of the main binding band body.

8. A neonatal blood oxygen probe, wherein the probe comprises:

a connector, a cable, a light emitting tube for emitting a light signal, a receiving tube for receiving the light signal, and a binding structure according to any one of claims 1 to 7;

9. The newborn blood oxygen probe according to claim 8, wherein a first net tail structure is arranged at the joint of the cable and the connector, and a second net tail structure is arranged at the joint of the cable and the main band body; the cable is a double-row cable or a round multi-bunch cable; the tail end of one end, far away from the connector, of the cable is provided with a branched structure, one branch end of the branched structure is connected with the light emitting tube, the other branch end of the branched structure is connected with the receiving tube, and the position of the joint of the branched structure and the other end of the cable is adjustable.

10. The newborn blood oxygen probe of claim 8, wherein the light emitting tube is fixed in the cavity structure through a first fixing bracket, the receiving tube is fixed in the cavity structure through a second fixing bracket, the light emitting tube is fixed in the first fixing bracket, the receiving tube is fixed in the second fixing bracket, the first light-transmitting body covers the first light-transmitting hole, the second light-transmitting body covers the second light-transmitting hole, after covering, the surfaces of the first light-transmitting body and the second light-transmitting body are flush with the inner surface of the bandage main body, the light emitting tube and the receiving tube are fixed in the first fixing bracket and the second fixing bracket through bonding, and the first fixing bracket and the second fixing bracket are integrally formed with the bandage main body through glue pouring and injection molding.