Artery puncture fixator and puncture auxiliary instrument

Abstract

The utility model discloses an artery puncture fixator and a puncture auxiliary instrument, the artery puncture fixator comprises a shell, one end of the shell is open, the other end of the shell is closed with a preset radian, and a first binding belt is arranged on the shell; the adjusting part is rotationally arranged at the open end of the shell, and the upper surface of the adjusting part is arranged at a certain radian and corresponds to the upper surface of the shell; the adjusting piece is detachably connected with the shell in a clamped mode, and a second binding belt is arranged on the adjusting piece. An arm of a child patient is borne through the shell and is bound and fixed through the first binding belt, the hand back of the child patient is borne through the adjusting piece and is bound and fixed through the second binding belt, and the angle between the adjusting piece and the shell can be adjusted so as to meet the bending angle requirements of different patients during arteriopuncture or treatment. And the adjusting piece is connected with the shell in a clamping manner, so that medical personnel can conveniently adjust and lock and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an arterial puncture fixator and a puncture auxiliary equipment. Background Art

[0002] Arterial puncture is a common surgical procedure, mainly for situations where arterial blood samples need to be collected, special examinations are required, and pressurized blood transfusion and infusion are required. When performing arterial puncture, the syringe or puncture device needs to be inserted along the direction of the artery. When performing arterial puncture on children, the forearm artery is preferred for operation, so that the back of the child's hand is bent to expose the radial artery for operation. Due to the poor self-control ability and fear of children, children often find it difficult to maintain the movements required for arterial puncture.

[0003] In the prior art, in order to fix the action of arterial puncture for children, parents are required to cooperate with the child or the child's arm is tied to a bracket for fixation before the operation is performed. For example, CN109938750B discloses an arterial puncture palm fixation bracket. Although the prior art can fix the patient's forearm and palm, it is unable to adjust the angle according to the different conditions of different patients, and it is difficult to meet the needs of completely exposing the radial artery during operations on different patients.

[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0005] In order to solve the problem that it is difficult for pediatric patients to independently maintain the movements required for arterial puncture in the prior art, although the existing support structure can fix the patient's forearm and palm, it is impossible to adjust the angle between the palm and forearm according to different patients, and it is difficult to meet the needs of completely exposing the radial artery during operations for different patients, the utility model proposes an arterial puncture fixator and a puncture auxiliary instrument.

[0006] The utility model is realized by the following technical solutions:

[0007] An arterial puncture fixator, wherein the arterial puncture fixator comprises:

[0008] A shell, one end of which is open, and the other end of which is closed with a predetermined arc, and a first binding belt is provided on the shell;

[0009] An adjusting member is rotatably arranged on one end of the shell body that is open, and an upper surface of the adjusting member is arranged with a certain arc and corresponds to an upper surface of the shell body; the adjusting member is detachably engaged with the shell body, and a second binding strap is arranged on the adjusting member.

[0010] The arterial puncture fixator, wherein a cushion body is provided on the shell, and the cushion body is fixedly attached to the upper surface of the shell;

[0011] The pad body comprises an extension portion, which covers the upper surface of the adjusting member and is in sliding contact with the adjusting member.

[0012] The arterial puncture fixator, wherein an anti-slip layer is provided on the pad body at a position corresponding to the shell, and the first binding belt is provided at a position corresponding to the anti-slip layer.

[0013] The arterial puncture fixator, wherein two ends of the first binding band are fixedly arranged on two sides of the shell;

[0014] The two ends of the second binding belt are rotatably arranged on both sides of the adjusting member;

[0015] The first binding belt and the second binding belt have the same structure but different sizes.

[0016] The arterial puncture fixator, wherein the lower surface of the shell is a plane, and a mounting piece is fixedly provided on the lower surface of the shell;

[0017] The mounting member includes a bonding layer;

[0018] Or, the mounting piece includes a snap-fit ​​structure.

[0019] The arterial puncture fixator, wherein sliding tenons are respectively provided on both sides of the adjusting member;

[0020] The housing is provided with sliding grooves at positions corresponding to the sliding tenons, the sliding grooves are hollowed out, the sliding tenons penetrate the sliding grooves, and protrude from the side surfaces of the housing.

[0021] The arterial puncture fixator, wherein the positions of the two sides of the shell corresponding to the slide groove are respectively provided with locks, the locks are slidably arranged on the shell, and the locks are provided with a plurality of slots on the side facing the slide groove, and the width of the slots is adapted to the width of the sliding tenon.

[0022] The arterial puncture fixator, wherein a mounting hole is provided on the end of the locking lock away from the locking slot, and the cross-sectional shape of the mounting hole is rectangular;

[0023] The housing is provided with tenon groups on both sides, and the tenon groups are engaged and slidably connected with the mounting holes;

[0024] The tenon group includes a first tenon and a second tenon that are arranged back to back, the first tenon and the second tenon are arranged in parallel, and both the first tenon and the second tenon are elastic tenons.

[0025] The arterial puncture fixator, wherein the shell is provided with adjustment shafts on both sides corresponding to the adjustment member, the adjustment shafts are fixedly connected to the shell, and the adjustment shafts are rotatably connected to the adjustment member.

[0026] A puncture assisting device, wherein the puncture assisting device comprises any one of the above-mentioned arterial puncture fixators.

[0027] The beneficial effects of the utility model are as follows: the utility model supports the arm of the child patient through the shell and fixes it with a first binding strap, supports the back of the hand of the child patient through the adjusting member and fixes it with a second binding strap, the angle between the adjusting member and the shell can be adjusted to meet the bending angle requirements of different patients during arterial puncture or treatment, and the adjusting member is snap-connected with the shell, which is convenient for medical staff to adjust and lock the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the first state of the arterial puncture fixator of the utility model;

[0029] Figure 2 This is a schematic structural diagram of the second state of the arterial puncture fixator of the utility model;

[0030] Figure 3 This is an exploded view of the structure of the arterial puncture fixator of the utility model;

[0031] Figure 4 The utility model is an arterial puncture fixator. Figure 1 A-node structure enlarged diagram;

[0032] Figure 5 The utility model is a bottom view of the arterial puncture fixator.

[0033] exist Figures 1 to 5 In: 100, shell; 110, first binding strap; 120, cushion body; 121, extension portion; 130, anti-slip layer; 140, slide groove; 150, lock; 151, mounting hole; 152, slot; 160, tenon group; 170, adjustment shaft; 200, adjustment member; 210, second binding strap; 220, slide tenon; 300, mounting member. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] In the prior art, in order to fix the action of arterial puncture for children, parents are required to cooperate with the child or the child's arm is tied to a bracket for fixation before the operation is performed. For example, CN109938750B discloses an arterial puncture palm fixation bracket. Although the prior art can fix the patient's forearm and palm, it is unable to adjust the angle according to the different conditions of different patients, and it is difficult to meet the needs of completely exposing the radial artery during operations on different patients.

[0038] Based on the above problems in the prior art, the utility model provides an arterial puncture fixator, such as Figure 1 As shown, the arterial puncture fixator includes: a shell 100, one end of the shell 100 is open, the other end of the shell 100 is closed with a predetermined curvature, and a first binding belt 110 is arranged on the shell 100; an adjusting member 200, the adjusting member 200 is rotatably arranged on the open end of the shell 100, the upper surface of the adjusting member 200 is arranged with a certain curvature and corresponds to the upper surface of the shell 100; the adjusting member 200 is detachably engaged with the shell 100, and a second binding belt 210 is arranged on the adjusting member 200.

[0039] The utility model supports the arm of a child patient through the shell 100 and fixes it with a first binding belt 110, supports the back of the hand of the child patient through the adjusting member 200 and fixes it with a second binding belt 210, and the angle between the adjusting member 200 and the shell 100 can be adjusted to meet the bending angle requirements of different patients during arterial puncture or treatment. The adjusting member 200 is snap-connected with the shell 100, which is convenient for medical staff to adjust and lock the operation.

[0040] In the above embodiment, if Figure 1 As shown, the main body of the arterial puncture fixator of the utility model is composed of a shell 100 and an adjusting member 200. Both the shell 100 and the adjusting member 200 are made of rigid materials, specifically metal materials, plastics, etc. The appearance of the shell 100 is similar to an enlarged mouse. One end of the shell 100 is open for installing the adjusting member 200, and the other end of the shell 100 is closed. In actual setting, in order to ensure the comfort of the patient during placement and avoid scratching the patient during use, the other end of the shell 100 should be set with a predetermined arc to fit the arm arc of the patient. Correspondingly, the adjusting member 200 is rotatably set on the open end of the shell 100, specifically in a partially sleeved manner. The positional relationship of the connection, that is, a part of the adjusting member 200 is sleeved inside the shell 100, and a part is located outside the shell 100, the upper surface of the adjusting member 200 corresponds to the position of the upper surface of the shell 100, and the upper surface of the adjusting member 200 is set with a certain curvature, which corresponds to the curvature of the upper surface of the shell 100, thereby forming a relatively smooth transition effect. In the actual setting, the adjusting member 200 and the shell 100 adopt a detachable snap-fit ​​structure setting, that is, the adjusting member 200 can rotate freely along the rotational connection with the shell 100, and the position after rotation can be fixed by the snap-fit ​​structure, thereby achieving the effect of targeted adjustment for the treatment of different patients and arterial puncture conditions.

[0041] In this embodiment, if Figure 1 and Figure 2 As shown, a first binding strap 110 is provided on the shell 100, and the first binding strap 110 is used to fix the patient's forearm so that the patient's forearm fits tightly against the upper surface of the shell 100. Correspondingly, a second binding strap 210 is provided on the adjusting member 200, and the second binding strap 210 is used to fix the patient's palm so that the back of the patient's hand fits tightly against the upper surface of the adjusting member 200. When the adjusting member 200 and the shell 100 rotate relative to each other, the angle between the upper surface of the adjusting member 200 and the upper surface of the shell 100 changes, which drives the angle of the wrist joint between the patient's palm and forearm to change, thereby changing the exposure of the patient's radial artery while fixing the patient's hand, thereby achieving the effect of fixing the patient's posture required for adapting to arterial puncture and other treatments.

[0042] Based on the above embodiments, in one possible implementation of the present invention, as Figure 1 and Figure 2As shown, in order to improve the comfort of the patient's hand during fixation, a pad 120 is further provided on the shell 100 in this embodiment. The pad 120 is made of elastic, skin-friendly and easy-to-disinfect material, such as rubber, silicone, etc. In actual setting, the pad 120 is fixedly attached to the upper surface of the shell 100 to cover the upper surface of the shell 100. In actual use, the patient's forearm is placed on the pad 120 to ensure comfort. On the other hand, since the adjusting member 200 is rotatably connected to the shell 100, when the adjusting member 200 and the shell 100 rotate relative to each other, in order to prevent the gap between the adjusting member 200 and the open end of the shell 100 from pinching the patient's skin, as shown in FIG. Figure 3 As shown, in this embodiment, the pad body 120 also includes an extension portion 121, which extends from the upper surface of the shell 100 to cover the upper surface of the adjusting member 200, and the extension portion 121 of the pad body 120 slides against the upper surface of the adjusting member 200. When the patient places the back of his hand at a position corresponding to the adjusting member 200, the extension portion 121 serves to support the back of the hand. When the adjusting member 200 is adjusted, the pad body 120 protects the patient's skin from direct contact with the adjusting member 200, thereby avoiding the possibility of pinching.

[0043] In another embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, since the arterial puncture fixator of the utility model is mainly used for pediatric patients, in order to prevent the arms of pediatric patients from slipping out of the first binding strap 110 and the second binding strap 210 due to fear and struggle, in this embodiment, an anti-slip layer 130 is also provided on the pad body 120 at a position corresponding to the shell 100. The anti-slip layer 130 can be formed by providing a rough structure at a predetermined position of the pad body 120 to achieve an anti-slip effect, or a composite material can be provided on the pad body 120. When the forearm of the pediatric patient is placed on the pad body 120 at a position corresponding to the shell 100, the patient's skin contacts the anti-slip layer 130, and the friction between the skin and the pad body 120 is increased under the restraining effect of the first binding strap 110, thereby reducing the probability of the pediatric patient directly pulling out his arm during arterial puncture and improving the continuity of the treatment process.

[0044] In another embodiment of the present invention, Figure 1 , Figure 2 and Figure 3As shown, when the first binding strap 110 is actually set, its two ends are fixedly set on both sides of the shell 100 to ensure structural strength and avoid damage caused by the struggle of the child patient. Correspondingly, since there is a relative angle change between the adjusting member 200 and the shell 100, in order to adapt to the angle change of the patient's palm and make the second binding strap 210 firmly fix the palm, in this embodiment, the two ends of the second binding strap 210 are rotatably set on both sides of the adjusting member 200, so that the second binding strap 210 can automatically adjust the angle between it and the adjusting member 200 to adapt to the actual situation, thereby ensuring comfort and reliability during the binding process.

[0045] In this embodiment, the first binding strap 110 and the second binding strap 210 have the same structure and are both composed of two parts. The two parts can be detachably connected by tying, Velcro fitting, etc., so as to facilitate binding and fixing the corresponding position of the patient. The difference is that since the first binding strap 110 and the second binding strap 210 correspond to different body parts of the patient, the width and length of the first binding strap 110 corresponding to the patient's forearm should be set slightly larger. The reason is to increase the contact area to avoid discomfort caused by stress concentration and to adapt to the diameter of the arm to ensure secure binding; the width and length of the second binding strap 210 corresponding to the patient's palm should be set slightly smaller. The reason is to facilitate the patient to hold the second binding strap 210 to form a fist to meet some treatment requirements and relieve tension by making a fist during some treatment processes. In addition, it also adapts to the circumferential size of the palm to ensure binding strength.

[0046] In another embodiment of the present invention, Figure 5 As shown, in actual setting, the lower surface of the shell 100 should be set as a plane for placing the arterial puncture fixture on a desktop or an operating table. In actual setting, in order to prevent the arterial puncture fixture from moving due to the struggle of the child patient during use, a mounting member 300 is also provided on the lower surface of the shell 100 in this embodiment. The mounting member 300 may specifically include a variety of types. For example, the mounting member 300 may include a bonding layer, and the arterial puncture fixture may be firmly fixed on the desktop or the operating table by bonding, thereby ensuring the stability during arterial puncture and treatment; or, the mounting member 300 may also include a snap-fit ​​structure. For example, referring to the fixing fixture, clip and other structures in the prior art, the arterial puncture fixture may be fixed to the edge of the table, the edge of the operating table and other positions by the mounting member 300, which also meets the stability of the arterial puncture fixture during use.

[0047] In the present application, the specific structural form of the mounting member 300 is not limited. Those skilled in the art may refer to the above explanation to adaptively configure the mounting member 300. Any improvement or modification shall fall within the protection scope of the present utility model.

[0048] In another embodiment of the present invention, Figure 1 and Figure 4 As shown, in order to limit the relative rotation range of the adjusting member 200 and the shell 100, in the present embodiment, sliding tenons 220 are respectively provided on both sides of the adjusting member 200, and correspondingly, sliding grooves 140 are respectively provided at positions corresponding to the sliding tenons 220 on the shell 100. In actual setting, the sliding grooves 140 are hollowed out. When the adjusting member 200 is assembled on the shell 100, the sliding tenon 220 passes through the sliding groove 140 and protrudes from the side of the shell 100. The shape of the sliding groove 140 is specifically an arc with the axis of the rotational connection between the adjusting member 200 and the shell 100 as the center. Therefore, when the adjusting member 200 rotates, under the restraining effect of the sliding groove 140 on the sliding tenon 220, only a predetermined angle of rotation can be achieved, which can avoid the situation where the adjusting member 200 is over-adjusted during use and causes damage to the patient's wrist joint.

[0049] Furthermore, in order to lock the position of the adjusting member 200 after adjustment, in this embodiment, latches 150 are respectively provided on both sides of the housing 100 corresponding to the positions of the slide slots 140. The structure of the latches 150 can be referred to in Figure 1 , Figure 3 The style in the embodiment, that is, the lock 150 is directional and slidably arranged on the housing 100, and a plurality of slots 152 are arranged on the side of the lock 150 facing the slide groove 140, and the width of the plurality of slots 152 is adapted to the width size of the above-mentioned slide tenon 220. In this embodiment, the number of slots 152 is the number of adjustment gears of the adjusting member 200 in the arterial puncture fixator. When the adjusting member 200 is adjusted to a suitable gear, the lock 150 is slid to make the slot 152 of the lock 150 engage with the slide tenon 220. Under the limiting effect of the slot 152, the position of the slide tenon 220 is locked, that is, the position of the adjusting member 200 is locked, which can stably keep the currently adjusted position of the adjusting member 200 fixed, and ensure the stability during the arterial puncture process.

[0050] More specifically, Figure 1 and Figure 4 As shown, in order to realize the installation of the lock 150 and enable the lock 150 to have the function of directional sliding, in the present embodiment, a mounting hole 151 is provided on the end of the lock 150 away from the slot 152, the mounting hole 151 is hollowed out, and the cross-sectional shape of the mounting hole 151 is rectangular, and the direction of the inner edge of the rectangle of the mounting hole 151 corresponds to the moving direction of the lock 150; on the shell 100, corresponding to the two side positions of the lock 150, tenon groups 160 are respectively provided, and the tenon groups 160 can cooperate with the mounting hole 151 to fix the lock 150 on the shell 100, and at the same time, the tenon group 160 cooperates with the mounting hole 151 with a rectangular cross section to achieve the effect of directional sliding of the lock 150.

[0051] In actual setting, the tenon group 160 includes a first tenon and a second tenon which are arranged back to back, and the first tenon and the second tenon are arranged in parallel and are both elastic tenons. Specifically, one end of the first tenon and the second tenon is fixedly connected to the shell 100, and the other side end can be set to a locking structure with a trapezoidal cross-section, and the first tenon and the second tenon are both elastic tenons. When installing the lock 150, the mounting hole 151 can be mounted corresponding to the first tenon and the second tenon, so that the ends of the first tenon and the second tenon are engaged with the lock 150. At the same time, since the first tenon and the second tenon are arranged in parallel, they correspond to the inner side of the mounting hole 151, thereby achieving the effect of limiting the directional sliding of the lock 150.

[0052] In another embodiment of the present invention, Figure 1 and Figure 4 As shown, adjusting shafts 170 are respectively provided on the shell 100 at positions corresponding to both sides of the adjusting member 200. In actual setting, the adjusting shaft 170 is fixedly connected to the shell 100, and the adjusting shaft 170 is rotationally connected to both sides of the adjusting member 200 at the position inside the shell 100, thereby achieving the effect of rotating the adjusting member 200.

[0053] Based on the above embodiments, the actual use process of the arterial puncture fixator of the utility model is as follows:

[0054] First, if Figure 1 and Figure 2 As shown, the medical staff drives the adjusting member 200 to rotate so that the adjusting member 200 rotates to a predetermined angle relative to the housing 100 to correspond to the treatment items to be performed on the pediatric patient, such as arterial puncture;

[0055] Then, the latch 150 is driven to slide, so that the latch groove 152 of the latch 150 is engaged with the sliding tenon 220, thereby locking the position of the adjusting member 200;

[0056] The back of the child's hand corresponds to the upper surface of the adjusting member 200, and the forearm corresponds to the upper surface of the shell 100, and are fixed respectively by the first binding strap 110 and the second binding strap 210. After the fixation is completed, the medical staff can also fine-tune the angle of the adjusting member 200 relative to the shell 100 by unlocking the lock 150. During the process, due to the presence of the pad 120, no damage will be caused to the patient's skin.

[0057] When the palm and forearm of a child patient are adjusted to a suitable angle, the radial artery of the patient is completely exposed, and arterial puncture can be performed, or the corresponding suitable angle can be adjusted for other treatments.

[0058] The utility model can effectively fix the hand of a child patient and limit the arm and palm to a suitable angle, so as to fully expose the radial artery, facilitate medical staff to perform arterial puncture or other treatments, and effectively improve the stability during the treatment process.

[0059] Based on the above embodiments, the utility model also provides a puncture assisting device, which includes an arterial puncture fixator described in any one of the above specifications, and the arterial puncture fixator includes: a shell, one end of the shell is open, the other end of the shell is closed with a predetermined curvature, and a first binding belt is arranged on the shell; an adjusting member, the adjusting member is rotatably arranged on the open end of the shell, the upper surface of the adjusting member is arranged with a certain curvature, and corresponds to the upper surface of the shell; the adjusting member is detachably engaged with the shell, and a second binding belt is arranged on the adjusting member. The utility model supports the arm of the child patient through the shell, and is tied and fixed by the first binding belt, supports the back of the child patient through the adjusting member, and is tied and fixed by the second binding belt, the angle between the adjusting member and the shell can be adjusted to meet the bending angle requirements of different patients during arterial puncture or treatment, and the adjusting member is engaged with the shell, which is convenient for medical staff to adjust and lock the operation.

[0060] In summary, the utility model provides an arterial puncture fixator and a puncture auxiliary device, wherein the arterial puncture fixator comprises: a shell, one end of the shell is open, the other end of the shell is closed with a predetermined curvature, and a first binding belt is arranged on the shell; an adjusting member, the adjusting member is rotatably arranged on the open end of the shell, the upper surface of the adjusting member is arranged with a certain curvature and corresponds to the upper surface of the shell; the adjusting member is detachably engaged with the shell, and a second binding belt is arranged on the adjusting member. The utility model supports the arm of the child patient through the shell, and is tied and fixed by the first binding belt, supports the back of the hand of the child patient through the adjusting member, and is tied and fixed by the second binding belt, the angle between the adjusting member and the shell can be adjusted to meet the bending angle requirements of different patients during arterial puncture or treatment, and the adjusting member is engaged with the shell, which is convenient for medical staff to adjust and lock the operation.

[0061] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An arterial puncture fixator, characterized in that: The arterial puncture fixator comprises: A shell, one end of which is open, and the other end of which is closed with a predetermined arc, and a first binding belt is provided on the shell; An adjusting member is rotatably arranged on one end of the shell body that is open, and an upper surface of the adjusting member is arranged with a certain arc and corresponds to an upper surface of the shell body; the adjusting member is detachably engaged with the shell body, and a second binding strap is arranged on the adjusting member.

2. The arterial puncture fixator according to claim 1, characterized in that: A pad is provided on the shell, and the pad is fixedly attached to the upper surface of the shell; The pad body comprises an extension portion, which covers the upper surface of the adjusting member and is in sliding contact with the adjusting member.

3. The arterial puncture fixator according to claim 2, characterized in that: An anti-slip layer is arranged on the cushion body at a position corresponding to the shell, and the first binding belt is arranged at a position corresponding to the anti-slip layer.

4. The arterial puncture fixator according to claim 1, characterized in that: Two ends of the first binding belt are fixedly arranged on two sides of the shell; The two ends of the second binding belt are rotatably arranged on both sides of the adjusting member; The first binding belt and the second binding belt have the same structure but different sizes.

5. The arterial puncture fixator according to claim 1, characterized in that: The lower surface of the shell is a plane, and a mounting piece is fixedly arranged on the lower surface of the shell; The mounting member includes a bonding layer; Or, the mounting piece includes a snap-fit ​​structure.

6. The arterial puncture fixator according to claim 1, characterized in that: Sliding tenons are respectively arranged on both sides of the adjusting member; The housing is provided with sliding grooves at positions corresponding to the sliding tenons, the sliding grooves are hollowed out, the sliding tenons penetrate the sliding grooves, and protrude from the side surfaces of the housing.

7. The arterial puncture fixator according to claim 6, characterized in that: Locks are respectively arranged at positions corresponding to the slide grooves on both sides of the shell, and the locks are slidably arranged on the shell. A plurality of slots are arranged on the side of the locks facing the slide groove, and the width of the slots is adapted to the width of the slide tenon.

8. The arterial puncture fixator according to claim 7, characterized in that: An installation hole is provided on one end of the card lock away from the card slot, and the cross-sectional shape of the installation hole is rectangular; The housing is provided with tenon groups on both sides, and the tenon groups are engaged and slidably connected with the mounting holes; The tenon group includes a first tenon and a second tenon that are arranged back to back, the first tenon and the second tenon are arranged in parallel, and both the first tenon and the second tenon are elastic tenons.

9. The arterial puncture fixator according to claim 1, characterized in that: Adjustment shafts are respectively arranged on the shell body at two sides corresponding to the adjustment member. The adjustment shafts are fixedly connected to the shell body and are rotationally connected to the adjustment member.

10. A puncture assisting device, characterized in that: The puncture assisting device comprises the arterial puncture fixator as described in any one of claims 1 to 9.

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