CN209734050U - Chest opener for pediatric cardiac surgery - Google Patents

Abstract

In one embodiment of the present application, there is provided a chest opener for pediatric cardiac surgery, comprising: the clamping arms are used for clamping ribs, the two spreading arms are arranged in a hollow mode, pushing rods are arranged in the spreading arms, and the clamping arms hinged to the spreading arms are hinged to the pushing rods in the spreading arms; the opening arm is also internally provided with: the supporting seat and the elastic component are arranged between the push rod and the supporting seat, and the elastic component provides elastic force for the push rod when being compressed. When the clamping arm clamps the rib, the clamping arm can rotate due to the acting force between the rib and the clamping arm, so that the area of mutual attachment of the rib and the clamping arm is larger, the clamping arm can drive the push rod to compress the elastic part by rotating, the elastic part can provide supporting force for the push rod and the clamping arm, and the rib is not easy to break or pain due to uneven stress.

Description

Chest opener for pediatric cardiac surgery

Technical Field

The utility model relates to the field of medical care instruments, in particular to a chest opener for pediatric cardiac surgery.

background

the thoracotomy instrument is a common instrument for stretching ribs in operation. In the operation, after an anesthesiologist or other medical staff utilizes the thoracotomy device to prop open the ribs at the position to be operated, the doctor performs the operation on the internal organs. However, the clamping arm on the stretching arm of the existing thoracotomy device cannot adjust the angle relative to the stretching arm, and the rib is easily broken due to uneven stress of the rib of the infant during the heart operation of the infant.

SUMMERY OF THE UTILITY MODEL

Accordingly, in one embodiment of the present application, there is provided a chest opener for pediatric cardiac surgery, comprising:

The clamping device comprises a fixed seat, a rack plate arranged on the fixed seat, a sliding seat sleeved on the rack plate, and spreading arms respectively arranged on the fixed seat and the sliding seat, wherein the spreading arms are hinged with clamping arms, the clamping arms are used for clamping ribs, the two spreading arms are both arranged in a hollow manner, pushing rods are arranged in the spreading arms, and the clamping arms hinged on the spreading arms are hinged with the pushing rods in the spreading arms;

Still be equipped with in the arm that struts: the elastic component is used for providing elasticity for the push rod when the elastic component is compressed.

Compared with the prior art, the clamping arm of the embodiment of the application is when the rib is clamped, because the acting force between the rib and the clamping arm, the clamping arm can rotate because of the acting force, the area that the rib and the clamping arm are mutually attached is larger, meanwhile, the clamping arm rotates to drive the push rod to compress the elastic part, the elastic part can provide supporting force for the push rod and the clamping arm, the clamping arm does not rotate any more, the attachment area between the clamping arm and the rib is the largest at the moment, the rib is not easy to break or pain due to uneven stress, and the safety of a patient is protected.

Further, the clamp arm includes: the clamping arm body and the articulated elements connected on the clamping arm body are provided with clamping grooves for clamping ribs, and the articulated elements are arranged on one side, deviating from the clamping grooves, of the clamping arm body and are used for being articulated with the push rod. The articulated elements are arranged on one side departing from the clamping groove, so that the rotating directions of the two clamping arms are close to each other.

furthermore, an elastic buffer layer is arranged on the groove wall of the clamping groove. The elastic buffer layer can provide buffer for the contact between the ribs of a patient and the clamping arms, reduce the rigid acting force on the ribs and avoid the clamping arms from damaging the ribs.

Furthermore, the push rod is connected with a guide rod, the guide rod penetrates through the elastic component, a guide hole for the guide rod to penetrate through is formed in the supporting seat, and the guide rod is used for moving in the guide hole along the length direction of the guide rod when the elastic component stretches. The guide rod can limit the moving direction of the push rod and prevent the elastic component from bending.

Furthermore, the supporting seat is connected with the inner wall of the opening arm in a sliding mode, a compression rod is further arranged in the opening arm, a driving device connected with the compression rod is arranged on the supporting arm, the compression rod and the pushing rod are respectively located on two sides of the supporting seat, and the driving device is used for driving the compression rod to push the supporting seat and compress the elastic component. The rib of the patient presses the clamping arm, and if the pressure provided by the elastic component for the clamping arm is too small, the clamping arm is excessively inclined or the clamping arm has insufficient supporting force for the rib. The driving device can push the supporting seat towards the direction of the push rod, so that the elastic part is compressed, the supporting elasticity of the elastic part to the clamping arm is improved, excessive cutting chips of the clamping arm are prevented, and the supporting force of the clamping arm to the rib is improved.

Further, be equipped with on the inner arm of propping open the arm and be used for supplying the gliding spout of compression bar, the compression bar is for establishing the rack in the spout, drive arrangement includes: the handle penetrates through the opening arm and is connected with the gear. The handle rotates to drive the compression rod to push the supporting seat, and the handle is rotated to be simple, convenient and labor-saving to operate.

Further, be equipped with a plurality of flexible joint portions in the spout, flexible joint portion is the slope setting, the rack is in the orientation one side of flexible joint portion is equipped with slope joint piece, slope joint piece is used for offseting with arbitrary one flexible joint portion to towards pass through during the supporting seat motion joint piece. The one-way slip of rack in strutting the arm has been injectd in the setting of slope joint piece and flexible joint portion, prevents that the supporting seat from removing extension spring towards the direction of keeping away from the catch bar in strutting the arm.

Further, the arm of strutting includes the lid of two mutual buckles. The opening arm can be opened, the opening arm can be detached after the operation is finished, the rack is reset, and the chest opener can be repeatedly used.

furthermore, one end of the rack close to the supporting seat is connected with a butting seat, and a reinforcing rib is connected between the butting seat and the rack. The width of rack is less than the internal diameter of supporting seat, and the setting up of strengthening rib has promoted the joint strength between rack and the butt seat, and the rack can be better promote the supporting seat through the butt seat.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to derive the related structures that do not appear in other drawings without creative efforts.

FIG. 1 is a schematic structural view of a first embodiment of a chest opener for pediatric cardiac surgery;

Fig. 2 is a schematic view showing the installation of the indicator light assembly and the distance sensor on the cylinder in the first embodiment;

FIG. 3 is a schematic view of the first embodiment showing the ray of the indicator, the axis of the needle and the distance of the indicator from the axis of the needle forming a triangle;

Fig. 4 is a schematic view of the installation of the distance sensor in the second embodiment.

description of reference numerals:

1-a fixed mount;

2-puncture needle tube; 21-a needle head; 22-a syringe;

31-a motor; 32-gear; 33-a rack; 331-a positioning rod; 332-clamping jaws;

4-an indicator light assembly; 41-indicator light; 42-a first belt buckle; 421-a belt; 422-button body; 4211-card slot;

5-a distance sensor;

6-prompting device;

7-a second belt buckle;

8-sliding track.

Detailed Description

Implementation mode one

the first embodiment of the utility model provides a chest opener for pediatric cardiac surgery, which is used for supporting the two side ribs which are cut open when the pediatric cardiac surgery is performed.

the chest opener includes: fixing base 1, install rack plate 2 in 1 mountain of fixing base, the slip seat 3 on rack plate 2 is established to the cover, install respectively two on fixing base 1 and slip seat 3 and prop open arm 4, articulate the centre gripping arm 5 on propping open arm 4, and slip seat 3 can slide on rack plate 2 to adjust two distances of propping between the arm 4, two centre gripping arms 5 are used for the centre gripping respectively and support the rib of both sides.

in the heart operation of children, because the bones of children are not completely developed, the rigidity and the latitude of the ribs are lower, when the clamping arms 5 clamp the ribs of the children, the clamping arms are easy to offset the protruding positions of the ribs, so that the ribs are stressed unevenly and are easy to be injured or broken. In this embodiment, the opening arms 4 are hollow, the pushing rods 41 penetrate through the opening arms 4, and the pushing rods 41 of the two opening arms 4 are respectively hinged to the two clamping arms 5. When the clamping arm 5 clamps the rib, the acting force of the rib can rotate, so that the clamping arm 5 can be attached to the rib as much as possible, the contact area between the clamping arm 5 and the rib is increased, the acting force of the rib is more uniform, and the rib is not easy to be injured or broken.

Simultaneously, still be equipped with in the arm 4 struts: a support seat 6 and an elastic component arranged between the push rod 41 and the support seat 6. The rib supports and presses the clamping arm 5, when the clamping arm 5 rotates, the push rod 41 moves towards the supporting seat 6, and an elastic component between the push rod 41 and the supporting seat 6 is compressed, in the embodiment, the elastic component is a pressure spring 61, after the pressure spring 61 is compressed by the compression rod, the supporting seat 6 cannot move downwards, the pressure spring 61 can generate upward supporting elastic force for the compression rod, after the clamping arm 5 is supported and pressed by the rib to rotate to a certain angle, the pressure of the received rib is balanced with the supporting elastic force of the pressure spring 61, the clamping arm 5 does not rotate any more, and the rib is supported at the position where the maximum rib adhering area is achieved.

The clamp arm 5 includes: the clamping arm 5 comprises a body of the clamping arm 5 and a hinged member 52 connected with the body of the clamping arm 5, a clamping groove 511 used for clamping a rib is formed in the body of the clamping arm 5, the clamping arm 5 clamps the rib through the clamping groove 511, the hinged member 52 is hinged to the push rod 41, and the hinged member 52 is located on one side, away from the clamping groove 511, of the clamping arm 5. The two holding arms 5 are rotated in directions to approach each other when holding the rib.

It should be noted that the groove wall of the clamping groove 511 is provided with an elastic buffer layer 512, and the elastic buffer layer 512 is laid on the groove wall of the clamping groove 511, and is used for contacting with the rib when the clamping groove 511 clamps the rib, so as to reduce the rigid acting force on the rib and protect the rib.

Meanwhile, one end of the push rod 41 in the expansion arm 4 is further connected with a guide rod 42, the cross-sectional area of the guide rod 42 is smaller than that of one end of the push rod 41, the guide rod 42 penetrates through the pressure spring 61, meanwhile, a guide hole 62 for the guide rod 42 to penetrate through is formed in the support base 6, the push rod 41 moves downwards when the clamping arm 5 rotates, and the guide rod 42 moves synchronously along with the push rod 41 and can slide in the guide hole 62. The arrangement of the guide rod 42 and the guide hole 62 defines the sliding direction of the guide rod 42, and also defines the movement direction of the push rod 41, which are both along the length direction of the expansion arm 4; the guide rod 42 penetrates the compression spring 61, so that the compression spring 61 is not bent and deformed, and the direction of the supporting elastic force of the compression spring 61 to the push rod 41 is limited.

When the compression spring 61 provides a supporting elastic force for the pushing rod 41, the situation that the rotation angle of the clamping arm 5 under the support of the rib is too large and the chest opener cannot open the rib of the patient due to insufficient supporting elastic force provided by the compression spring 61 due to the small compression amplitude of the compression spring 61 may occur. Therefore, the chest opener for pediatric surgery of the present embodiment is further provided with a compression rod and a driving device for compressing the compression spring 61 and raising the supporting elastic force of the compression spring 61 to the gripping arm 5. The compression rod is abutted against the supporting seat 6, the compression rod and the push rod 41 are respectively arranged on two sides of the supporting seat 6, and the driving device is used for pushing the compression rod towards the push rod 41 so as to compress the pressure spring 61 between the supporting seat 6 and the push rod 41 and improve the elasticity of the pressure spring 61.

offer on the inner wall of strutting arm 4 and be used for supplying at the gliding supporting seat spout 43 of supporting seat 6, be equipped with on the supporting seat 6 with supporting seat spout 43 complex slider 63, the length direction of supporting seat spout 43 is parallel with the arm length direction who struts arm 4, and strutting arm 4 has the opening that is used for accomodating catch bar 41, and open-ended terminal surface is run through to the one end of supporting seat spout 43, and the other end is arranged in strutting arm 4's inner wall. The length of the supporting seat sliding groove 43 is smaller than the arm length of the spreading arm 4, and may be one half or two thirds of the arm length of the spreading arm 4, or may be other ratios, in this embodiment, the length of the supporting seat sliding groove 43 is explained as one half of the arm length of the spreading arm 4, the length of the supporting seat sliding groove 43 defines the maximum distance between the supporting seat 6 and the push rod 41, and the situation that the supporting elasticity provided by the compression spring 61 is insufficient due to too long distance between the supporting seat 6 and the push rod 41 is avoided.

In this embodiment, the compression rod is the rack 7, the inner wall of the distraction arm 4 is provided with a sliding groove 44 for the rack 7 to slide, the length direction of the sliding groove 44 is arranged along the arm length direction of the distraction arm 4, the rack 7 abuts against the support arm, and the support seat 6 can be pushed upwards under the pushing of the driving device to compress the spring. The drive device includes: the gear 8 is meshed with the rack 7, and the handle 9 is arranged on the opening arm 4, wherein the handle 9 comprises a rotating shaft 91 and a handheld part 92 connected with the rotating shaft 91, the handheld part 92 is positioned outside the opening arm 4 and is operated by medical personnel, the rotating shaft 91 penetrates through the opening arm 4 and enters the opening arm 4, the rotating shaft 91 penetrates through the axis of the gear 8 and is in key connection with the gear 8, namely, the medical personnel can drive the rotating shaft outside the opening arm 4 to rotate synchronously with the gear 8 by rotating the handheld arm, and the gear 8 can drive the rack 7 to move towards the direction of the supporting seat 6 when rotating, so that the supporting seat 6 is pushed upwards, and the pressure spring 61 is compressed.

It should be noted that, after the handle 9 is rotated to drive the rack 7 to move upwards, the supporting seat 6 presses the rack 7 downwards, and if the rack 7 is pushed downwards by the supporting seat 6, the pressing spring 61 is stretched, and the supporting elastic force provided by the pressing spring 61 is reduced. In this embodiment, a plurality of flexible clamping portions 441 are arranged in the sliding groove 44, each flexible clamping portion 441 is arranged in an inclined manner, and the inclined direction of each flexible clamping portion 441 faces the push rod 41; the rack 7 is provided with an inclined clamping block 71 on one side facing the flexible clamping portion 441, wherein the inclined direction and the inclined angle of the inclined clamping block 71 are consistent with those of the flexible clamping portion 441, and the inclined clamping block 71 abuts against any one of the flexible clamping portions 441.

At medical personnel twist grip 9, when driving gear 8 and rotating, rack 7 can the upward movement under gear 8's drive, slope joint piece 71 on the rack 7 also along with rack 7 upward movement, the up end of slope joint piece 71 offsets with the lower terminal surface of the flexible joint portion 441 of its top, because slope joint piece 71 is unanimous with the inclination of flexible joint portion 441, all towards catch bar 41, incurve deformation can take place for flexible joint portion 441, make slope joint piece 71 can pass through flexible joint portion 441 when the upward movement. When the medical staff stops rotating the handle 9, the rack 7 and the inclined clamping block 71 have a downward movement trend, at the moment, the inclined clamping block 71 is clamped with the flexible clamping block below the inclined clamping block 71, obviously, the flexible clamping portions 441 cannot generate bending deformation enough to enable the inclined clamping block 71 to move downward, the inclined clamping blocks 71 and the flexible clamping portions 441 are arranged to enable the rack 7 to slide in the sliding groove 44 in a single-side mode, and the rack 7 can only slide upward and cannot slide downward in the sliding groove 44. When medical personnel stopped rotating handle 9, rack 7 can not take place to remove because slope joint piece 71 is fixed with the joint of flexible joint portion 441, prevents that rack 7 from getting back to original position, tensile pressure spring 61.

It is worth noting that the opening arm 4 is composed of two mutually buckled cover bodies 45, after the operation is completed, the medical staff can disassemble and separate the two cover bodies 45, take out the rack 7 therein, slide the supporting seat 6 to the bottom of the supporting seat sliding groove 43, reinstall the rack 7, and realize the reutilization of the chest opener.

It is worth noting that the rack 7 is also connected with a butt joint seat at one end close to the support seat 6, and the butt joint seat is attached to the support seat 6 to increase the contact area between the rack 7 and the support seat 6, so that the thrust of the rack 7 borne by the support seat 6 is uniform, and the support seat 6 is prevented from tilting when sliding upwards. Be connected with strengthening rib 73 between base and the rack 7, strengthening rib 73 is used for promoting the joint strength between base and the rack 7, makes the support butt seat that rack 7 can be more stable.

In the chest opener for pediatric cardiac surgery in the embodiment, the pushing rod 41 is hinged with the clamping arm 5, so that the clamping arm 5 can rotate when clamping a rib, the contact area between the clamping arm 5 and the rib is increased, and the rib is prevented from being injured or broken due to uneven stress; through the arrangement of the pressure spring 61, supporting elasticity can be provided for the clamping arm 5, and the chest opener can be ensured to open ribs; through the arrangement of the rack 7 and the driving device, the compression spring 61 can be compressed, and the supporting elastic force provided by the compression spring 61 for the clamping arm 5 is increased.

It will be appreciated by those of ordinary skill in the art that in the embodiments described above, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be basically implemented without these technical details and various changes and modifications based on the above-described embodiments. Accordingly, in actual practice, various changes in form and detail may be made to the above-described embodiments without departing from the spirit and scope of the present application.

Claims (9)

1. A chest opener for pediatric cardiac surgery, comprising: the rib plate clamping device comprises a fixing seat, a rack plate arranged on the fixing seat, a sliding seat sleeved on the rack plate, and spreading arms respectively arranged on the fixing seat and the sliding seat, and is characterized in that the spreading arms are hinged with clamping arms, the clamping arms are used for clamping ribs, the two spreading arms are both arranged in a hollow mode, pushing rods are arranged in the spreading arms, and the clamping arms hinged to the spreading arms are hinged with the pushing rods in the spreading arms;

Still be equipped with in the arm that struts: the elastic component is used for providing elasticity for the push rod when the elastic component is compressed.

2. The chest opener for pediatric cardiac surgery of claim 1, wherein the gripping arm comprises: the clamping arm body and the articulated elements connected on the clamping arm body are provided with clamping grooves for clamping ribs, and the articulated elements are arranged on one side, deviating from the clamping grooves, of the clamping arm body and are used for being articulated with the push rod.

3. The chest opener for pediatric cardiac surgery as defined in claim 2, wherein an elastic buffer layer is disposed on the wall of the holding groove.

4. The chest opener for pediatric cardiac surgery as defined in claim 1, wherein a guide rod is connected to the pushing rod, the guide rod penetrates through the elastic member, a guide hole is formed in the supporting base for the guide rod to penetrate through, and the guide rod is configured to move along a length direction of the guide rod in the guide hole when the elastic member is extended or retracted.

5. the chest expander for pediatric cardiac surgery as defined in claim 1, wherein the supporting seat is slidably connected to an inner wall of the expanding arm, the expanding arm is further provided with a compression rod therein, the supporting arm is provided with a driving device connected to the compression rod, the compression rod and the pushing rod are respectively located at two sides of the supporting seat, and the driving device is configured to drive the compression rod to push the supporting seat to compress the elastic member.

6. The pediatric cardiac surgery chest opener according to claim 5, wherein the inner arm of the opening arm is provided with a sliding groove for sliding the compression rod, the compression rod is a rack disposed in the sliding groove, and the driving device comprises: the handle penetrates through the opening arm and is connected with the gear.

7. The chest opener for pediatric cardiac surgery as defined in claim 6, wherein a plurality of flexible clamping portions are disposed in the sliding slot, the flexible clamping portions are disposed in an inclined manner, and the rack has an inclined clamping block on a side facing the flexible clamping portions, the inclined clamping block being adapted to abut against any one of the flexible clamping portions and pass through the clamping block when moving toward the supporting base.

8. The chest opener for pediatric cardiac surgery of claim 7, wherein the spreader arm comprises two covers that snap into one another.

9. The chest opener for pediatric cardiac surgery as defined in claim 6, wherein the rack is connected with a butt seat at one end close to the support seat, and a reinforcing rib is connected between the butt seat and the rack.