CN216257220U - Sterile film for packaging handle of medical instrument and operation working head - Google Patents

Abstract

The utility model provides a sterile film for packaging a handle of a medical instrument, which comprises a laminated film, wherein the laminated film can be switched from a compressed state to an expanded state, and the laminated film is folded along the axial direction of the cylindrical sterile film to form a compressed state; when the laminated film is in an unfolded state, a cavity for accommodating the handle is formed inside the laminated film. The handle can be reused. The utility model also provides an operation working head with the sterile film.

Description

Sterile film for packaging handle of medical instrument and operation working head

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sterile film for packaging a handle of a medical instrument and an operation working head.

Background

In surgical procedures, surgical instruments are surgical tools used in medical procedures, and common surgical instruments include clip appliers and staplers. Among them, clip appliers are often used to ligate blood vessels around target tissue to prevent bleeding; staplers are often used to perform cutting and stapling of tissue.

The cost of the clip applier and the anastomat is high, and the clip applier and the anastomat on the market are usually disposable at present, namely, one set of clip applier is only used in one operation process, and one set of anastomat is only used in one operation process, so that the operation cost is high. If the clip applier and the anastomat on the market are reused, high-temperature steam sterilization is needed, the sterilization process is complex, the risk of infection caused by the fact that the clip applier and the anastomat cannot be sterilized exists, and after the clip applier and the anastomat are subjected to multiple times of steam sterilization, the interior of the clip applier and the anastomat is affected with damp, and the circuit inside the clip applier and the anastomat is seriously damaged due to short circuit.

Accordingly, a need exists for a device that enables clip appliers and staplers to be reused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the problems in the art described above, the present invention is at least partially addressed. To this end, an object of the present invention is to propose a sterile membrane for packaging the handle of a medical device, enabling recycling of the handle.

The second purpose of the utility model is to provide a surgical working head with the sterile film.

(II) technical scheme

In order to achieve the purpose, the utility model adopts the main technical scheme that:

the utility model provides a sterile film for packaging a handle of a medical instrument, which comprises a laminated film, wherein the laminated film can be switched from a compressed state to an expanded state, and the laminated film is folded along the axial direction of the cylindrical sterile film to form a compressed state; when the laminated film is in an unfolded state, a cavity for accommodating the handle is formed inside the laminated film.

Optionally, an adhesive layer is coated around the circumference of the laminate at the connection end of the laminate for connection with a surgical working head of a medical device.

Optionally, the laminate has a connecting end for connection with a surgical working head of a medical instrument and a deployment end remote from the connecting end in a deployed state; the opening diameter of the connecting end of the laminated film is smaller than that of the unfolding end of the laminated film.

Optionally, the laminate has a connecting end for connection with a surgical working head of a medical instrument and a deployment end remote from the connecting end in a deployed state; the opening at the unfolding end of the laminated film is an oblique opening.

Optionally, the laminate has a connecting end for connection with a surgical working head of a medical instrument and a deployment end remote from the connecting end in a deployed state; the sterile film also comprises a binding rope; at the unfolding end of the laminated film, a threading channel is arranged around the circumference of the laminated film and is positioned at the outer side of the cylindrical sterile film; the binding rope passes through the rope threading channel, and the first end of the binding rope and the second end of the binding rope are both exposed outside the rope threading channel.

Optionally, the sterile film further comprises an elastic band; the laminated film is provided with a connecting end used for being connected with an operation working head of a medical instrument and a unfolding end far away from the connecting end in an unfolding state; the laminated film is an inelastic film, a compression belt folded along the circumferential direction of the laminated film is formed at the connecting end of the laminated film, the elastic belt covers the compression belt along the circumferential direction of the laminated film outside the connecting end of the laminated film, and the elastic belt is connected with the compression belt.

Optionally, the sterile film further comprises an elastic band; the laminated film is provided with a connecting end used for being connected with an operation working head of a medical instrument and a unfolding end far away from the connecting end in an unfolding state; the laminated film is an elastic film, and the elastic belt is connected to the connecting end of the laminated film along the circumferential direction of the laminated film outside the connecting end of the laminated film.

Optionally, the sterile film further comprises an endless elastic band; the laminated film is provided with a connecting end used for being connected with an operation working head of a medical instrument and a unfolding end far away from the connecting end in an unfolding state; the annular elastic belt is connected to the connecting end of the laminated film along the circumferential direction of the laminated film inside the connecting end of the laminated film.

Optionally, the stack is a transparent film.

In another aspect, the utility model provides a surgical working head connected with the sterile film.

(III) advantageous effects

The utility model has the beneficial effects that:

1. the utility model provides a sterile film, which is sleeved on a shell of an operation working head, can be completely unfolded and cover a handle, and then is sealed, so that bacterial infection of the handle is blocked, the handle is not required to be sterilized, the handle in a surgical instrument can be recycled, the use cost of the surgical instrument is reduced, and the operation cost is reduced. And the utility model is a partial reuse of surgical instruments, rather than a total reuse of surgical instruments, i.e. the utility model proposes a new idea of reusing surgical instruments.

2. The opening diameter of the fixed end of the laminated film is set to be smaller than that of the unfolding end of the laminated film, so that the folding of the fixed end of the laminated film is reduced, the sealing between the fixed end of the laminated film and the pipe body is facilitated, and on the other hand, the cylindrical sterile film formed after the laminated film is unfolded from the large end of the pipe body to the handle adapts to the shape of the handle to be wrapped.

3. The rope binding and rope penetrating channel is arranged at the unfolding end of the laminated film, the rope binding passes through the rope penetrating channel, the clamping bin assembly is provided with the rope binding, when the laminated film is unfolded to completely cover the handle, the rope binding does not need to be additionally found to seal, and the film binding device is convenient and fast.

Drawings

The utility model is described with the aid of the following figures:

FIG. 1 is a schematic structural view of a surgical instrument according to embodiment 1 of the present invention before installation with a sterile film removed;

FIG. 2 is a schematic view of the assembled surgical instrument after the sterile film has been removed in accordance with example 1 of the present invention;

FIG. 3 is a schematic structural view of a surgical instrument including a sterile film according to example 1 of the present invention before installation;

FIG. 4 is a cross-sectional view of a laminate (sterile film) on a tube in a first mode of the embodiment 1 of the present invention;

FIG. 5 is a sectional view of a tube body having a laminate film (a sterilized film) according to a second embodiment of the present invention in example 1;

FIG. 6 is a schematic structural view of a tubular sterile film in example 1 of the present invention;

FIG. 7 is a schematic structural view of a laminated film in an expanded state in example 1 of the present invention;

FIG. 8 is a schematic view showing the structure of the laminate film of example 1 of the present invention, which is unfolded to completely cover the handle;

FIG. 9 is a schematic structural view of a clip applier of embodiment 1 of the utility model after installation is completed;

FIG. 10 is a side view of the sleeve assembly in embodiment 1 of the present invention;

fig. 11 is a schematic structural view of a telescopic structure in embodiment 1 of the present invention;

fig. 12 is a sectional view of a telescopic structure in embodiment 1 of the utility model;

FIG. 13 is a sectional view of a laminate (a sterilized film) on a tube in the first mode of embodiment 3 of the present invention;

FIG. 14 is a sectional view of a tube body having a laminate film (a sterilized film) according to a second embodiment of the present invention in example 3;

FIG. 15 is a schematic view of the first form of the surgical instrument of example 8 of the present invention after installation with the sterile film removed;

FIG. 16 is a schematic view of the second form of the surgical instrument of example 8 of the present invention after installation with the sterile film removed.

[ description of reference ]

1: a pipe body;

11: a big end; 12: a capillary body; 13: clamping;

111: a sterile film installation site; 112: blocking a gear;

21: an adapter;

211: inserting into the channel;

3: laminating the films;

31: a through hole;

321: a connecting end of the laminated film; 322: an unfolded end of the stack; 324: an endless elastic band;

41: a first end opening; 42: a second end opening;

5: tying a rope;

6: a handle;

7: a support sleeve; 71: a threaded mounting seat;

81: an arc-shaped plate; 82: a screw; 83: a sliding joint; 84: a fixed joint; 85: a limiting aperture; 86: a nut; 87: a gasket; 88: distance scales; 89: a threaded post.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. Herein, "proximal" refers to the side closer to the operator, and "distal" refers to the side closer to the patient. As used herein, the terms "upper," "lower," "front," "rear," and the like are used with reference to the orientation of FIG. 1, wherein the proximal-to-distal direction is also the rear-to-front direction.

Example 1

There is a surgical instrument as shown in fig. 1 and 2 that is a clip applier, the clip applier handle 6, the adapter 21, and the clip cartridge assembly. The cartridge assembly comprises a tubular body 1 removably connected to an adapter 21. Wherein, body 1 is including the stub 11 that is located the near-end and the tubule body 12 (tubule body 12 is arranged in inserting the human body) of connecting in stub 11, the farthest end of tubule body 12 is provided with clamp 13, the transmission structure has been held in stub 11, it presss from both sides storehouse structure and percussion structure to hold in tubule body 12, transmission structure and double-layered storehouse structural connection, transmission structure drive presss from both sides the storehouse structure and send the clamp action in order to send the clamp to clamp, transmission structure and percussion structure are connected, transmission structure drive percussion structure carries out the percussion action in order to close the clamp, press from both sides closed clamp. Wherein, the adapter 21 includes an insertion channel 211 and a power source structure, the proximal end big end 11 of the tube body 1 is detachably inserted in the insertion channel 211, and the power source structure is connected with the transmission structure to provide power for the transmission structure. The adapter 21 is detachably attached to the handle 6, and in fig. 1, the handle 6 extends in the up-down direction, and the adapter 21 is detachably attached to the upper portion of the handle 6. In the embodiment, the operation working head is a clamping cabin component.

As shown in fig. 3 and fig. 6, for the clip applier in which the clip cartridge assembly and the handle 6 are detachably connected, the present embodiment provides a clip cartridge assembly, which includes a sterile film, the sterile film is sleeved on the tube body 1 of the clip cartridge assembly, the sterile film can be switched from a compressed state to an expanded state, and the expanded state is shown in fig. 6. The middle part of the sterile film is provided with a through hole 31, the tube body 1 of the clamping bin assembly penetrates through the through hole 31, and the sterile film is connected with the tube body 1 in a sealing way; under the action of external force, the sterile film is released and can be unfolded towards the handle 6, the sterile film is unfolded from the beginning to the end of unfolding, the farthest end of the sterile film is always in sealing connection with the tube body 1, and in the unfolded state, the handle 6 can be completely covered by the sterile film. Therefore, when the cartridge assembly is used, the sterile film is completely unfolded and covers the handle 6, then the sealing is carried out, bacteria of the handle 6 are sealed in the sterile film, the bacteria of the handle 6 are prevented from being infected towards the far end of the tube body 1, and the far end of the tube body 1 inserted into a human body is ensured to be sterile. Therefore, the handle 6 can be reused without being sterilized, the use cost of the clip applier is reduced, and the operation cost is reduced. And this embodiment is a partial reuse of the clip applier rather than an overall reuse of the clip applier, i.e., this embodiment presents a new idea of reusing the clip applier.

The present embodiment will be described in detail below with reference to the accompanying drawings.

As shown in fig. 3 to 9, the present embodiment provides a clip applier, which comprises a clip chamber assembly and a handle 6, wherein the structure of the clip chamber assembly, the structure of the handle, and the connection relationship between the clip chamber assembly and the handle are the same as those of the clip applier with the above-mentioned split design (i.e. the clip chamber assembly and the handle are detachably connected), and are not described again here.

Wherein the cartridge assembly comprises a sterile membrane which can be switched from a compressed state (see fig. 3) to an expanded state (see fig. 4), and the middle part of the sterile membrane is provided with a through hole 31; the tube body 1 of the clamping bin assembly penetrates through the through hole 31, and the sterile film is sleeved on the tube body 1; under the action of no external force, the sterile membrane is in a compressed state and is in sealing connection with the tube body 1; under the action of external force, the sterile film is released and can be unfolded towards the handle 6, the sterile film is unfolded from the beginning to the end of unfolding, the farthest end of the sterile film is always in sealing connection with the tube body 1, and the handle 6 can be completely covered by the sterile film when the sterile film is unfolded.

When the clamping bin assembly arranged like this is used, the sterile film is unfolded to completely cover the handle 6, then the sealing is carried out, bacteria of the handle 6 are sealed in the sterile film, the bacteria of the handle 6 are prevented from being infected towards the far end of the tube body 1, and the far end of the tube body 1 inserted into a human body is ensured to be sterile. Therefore, the handle 6 can be reused without being sterilized, the use cost of the clip applier is reduced, and the operation cost is reduced. Therefore, in the clip applier provided by the embodiment, the clip chamber assembly is definitely sterile, and the handle can be either sterile or aseptic; when the handle 6 is sterile, the clip cartridge assembly and clip applier provided in this embodiment enable the handle 6 to be reused.

As shown in fig. 4, in the present embodiment, the sterile film is a laminated film 3 formed by folding a cylindrical sterile film in its axial direction when the sterile film is in a compressed state. In this embodiment, the tubular sterile film, which has two end openings, i.e., the first end opening 41 and the second end opening 42, is folded in the axial direction to form the through hole 31 in the middle of the laminated film 3, as shown in fig. 6.

To achieve a sealed connection between the sterile film and the tube body 1, in this embodiment, the first end of the film stack 3 is bonded around the circumference of the tube body 1, forming a sealed connection between the film stack 3 and the tube body 1. With the arrangement, the simple structure can ensure that the laminated film 3 forms a seal with the tube body 1 in an undeployed state, is beneficial to unfolding the laminated film 3 towards the handle 6, and ensures that the farthest end of the laminated film 3 is always sealed with the tube body 1 from the beginning to the end of the unfolding of the laminated film 3. Specifically, at a first end of the film stack 3, an adhesive layer is coated around the circumference of the film stack 3. This achieves circumferential bonding of the first end of the laminate 3 around the body 1. Optionally, the second end of the membrane stack 3 is bonded around the circumference of the tubular body 1, forming a sealed connection between the membrane stack 3 and the tubular body 1. Similar effects can be achieved.

According to the pipe body 1 and the laminated film 3, in the process of unfolding the laminated film 3, the first end of the laminated film 3 is fixed, and the second end of the laminated film 3 is unfolded towards the handle 6, or the second end of the laminated film 3 is fixed, and the first end of the laminated film 3 is unfolded towards the handle 6 until the unfolding is finished and the unfolded state is reached. Therefore, in the present embodiment, one end (the first end of the laminated film 3 or the second end of the laminated film 3) for connecting the laminated film 3 to the tube body 1 is used as the connecting end 321 of the laminated film 3, and one end (the first end of the laminated film 3 or the second end of the laminated film 3) for extending the laminated film 3 in the direction of the handle 6 is used as the extending end 322 of the laminated film 3.

Preferably, the proximal end big end 11 of the tube body 1 comprises a sterile film mounting position 111, the sterile film mounting position 111 is located at the far side of the handle 6, the sterile film mounting position 111 is exposed to the outside of the adaptor 2 after the cartridge assembly is connected with the adaptor 21, and the sterile film is sleeved on the sterile film mounting position 111. Of course, the sterile film may also be placed over the capillary base 12 without affecting the ability of the capillary base 12 to be inserted into the body through a puncture device.

The first end opening 41 of the tubular sterile film corresponds to the end 321 of the laminated film 3, and the second end opening 42 of the tubular sterile film corresponds to the end 322 of the laminated film 3.

Preferably, the diameter of the first end opening 41 of the cylindrical sterile membrane is smaller than the diameter of the second end opening 42 of the cylindrical sterile membrane. Because the volume of the handle 6 is larger than that of the large end 11 of the tube body in general, the folding of the connecting end 321 of the laminated film 3 is reduced so that the connecting end 321 of the laminated film 3 is bonded around the circumference of the tube body 1, which is beneficial to the sealing connection between the connecting end 321 of the laminated film 3 and the tube body 1, and the tubular sterile film formed after the laminated film 3 is unfolded from the large end 11 of the tube body to the handle 6 is adapted to the shape of the handle to be wrapped. Further preferably, the diameter of the first end opening 41 of the cylindrical sterile film is smaller than or equal to the diameter of the sterile film mounting position 111 on the tube body 1; when the diameter of the first end opening 41 of the tubular sterile film is smaller than the diameter of the sterile film mounting position 111 on the tube body 1, the tubular sterile film is an elastic film. Thus, the rolling end 322 of the film stack 3 sleeved on the tube body 1 is not folded, so that the film stack 3 and the tube body 1 are well sealed.

It is conceivable that the diameter of the first end opening 41 of the tubular sterile film is greater than or equal to the diameter of the second end opening 42 of the tubular sterile film, and that the connecting end 321 of the laminate 3 is bonded around the circumferential direction of the tube body 1, a sealed connection is formed between the connecting end 321 of the laminate 3 and the tube body 1, and the handle 6 can be completely covered (wrapped) when the laminate 3 is completely unfolded.

Preferably, the first end opening 41 of the tubular sterile film is flat (i.e., the sterile film at the first end opening is flush at every location), and the second end opening 42 of the tubular sterile film is beveled (i.e., the sterile film at the second end opening is tilted in one direction), with the first end of the beveled opening being closer to the flat than the second end of the beveled opening, as shown in fig. 6. Accordingly, a first end of the bevel in the film stack 3 is located at the lower side of the tube body 1, and a second end of the bevel in the film stack 3 is located at the upper side of the tube body 1.

Since the path length by which the laminate 3 located above the sterile film mounting site 111 (i.e., the upper side of the tube body 1) is unfolded to completely cover the handle 6 is longer than the path length by which the laminate 3 located below the sterile film mounting site 111 (i.e., the lower side of the tube body 1) is unfolded to completely cover the handle 6. The second end opening 42 of the tubular sterile film is thus arranged as a bevel, and the first end of the bevel in the laminate 3 is arranged at the lower side of the tube body 1 and the second end of the bevel in the laminate 3 is arranged at the upper side of the tube body 1. In this way, the film stack 3 is more adapted to the shape of the handle 6 after being unfolded, and when the film stack 3 is unfolded to completely cover the handle 6, the unfolded end 322 of the film stack 3 does not generate excessive allowance.

It is conceivable that the first end opening 41 of the tubular sterile film is a first bevel, the second end opening 42 of the tubular sterile film is a second bevel, and the first end of the second bevel is closer to the first bevel than the second end of the second bevel, and accordingly, the first end of the second bevel in the laminated film 3 is located on the lower side of the tube body 1, and the second end of the second bevel in the laminated film 3 is located on the upper side of the tube body 1, which can also achieve the similar effects.

In conclusion, it is only necessary to ensure that the second end opening 42 of the tubular sterile film is a bevel, and the first end of the bevel is closer to the flat opening than the second end of the bevel, and accordingly, the first end of the bevel in the film stack 3 is located at the lower side of the tube body 1, and the second end of the bevel in the film stack 3 is located at the upper side of the tube body 1, so that the similar effects as described above can be achieved.

It is to be noted that, although the first end opening 41 and the second end opening 42 of the tubular sterile film are both flat, or the first end opening 41 of the tubular sterile film is a beveled opening and the second end opening 42 of the tubular sterile film is a flat opening, it is possible to completely cover the handle 6 after the laminate 3 is developed, and a large margin is generated at the development end 322 of the laminate 3 only when the laminate 3 is developed to completely cover the handle 6.

Preferably, at the unfolding end 322 of the laminated film 3, a threading channel (not shown in the figure) is arranged around the circumference of the cylindrical sterile film, the threading channel is positioned at the outer side of the cylindrical sterile film, and the threading channel is connected with the cylindrical sterile film; the bin clamping assembly further comprises a tying rope 5, the tying rope 5 penetrates through the rope penetrating channel, and a first end of the tying rope 5 and a second end of the tying rope 5 are exposed out of the rope penetrating channel. So set up, make the double-layered storehouse subassembly from taking rope 5, when fold membrane 3 expandes to cover the handle completely, need not to look for the rope in addition and seal convenient and fast. Certainly, the component for sealing the unfolding end 322 of the laminated film 3 is not limited to the tying rope 5, a longitudinal slit may be provided for the second end opening 42 of the tubular sterile film, matching magic tapes are respectively provided on two sides of the slit, and the second end opening 42 is bound by the magic tapes. Of course, it is also possible to arrange the strap on the second end opening 42 and arrange the hook and loop fastener on the outer wall of the strap and the second end opening 42.

Preferably, the tubular sterile film is a transparent film.

The tubular sterile film may be an elastic film or a non-elastic film. When the tubular sterile film is an elastic film, the laminated film 3 is released to be unfolded towards the handle direction, the unfolding is finished on the premise that the laminated film 3 does not elastically deform, the laminated film 3 can not completely cover the handle 6, the laminated film 3 can be stretched to completely cover the handle 6 only by elastically deforming under the action of external force, then the sealing is carried out, the bacterial infection can be blocked, and the reuse of the handle 6 of the clip applier is realized. When the tubular sterile film is a non-elastic film, the laminate 3 is released and unfolded in the direction of the handle 6, and at the end of the unfolding, the laminate 3 must completely cover the handle 6.

When the handle 6 is bacteria-containing, the operation working head provided by the embodiment needs to be unfolded firstly and then the operation working head is mounted on the handle 6 when in use, so as to prevent the bacteria on the handle 6 from falling on the operation working head in the assembling process. However, the compressed sterile film 3 provided by the embodiment is a soft film, and the shape of the compressed sterile film 3 is not fixed after being unfolded, so that the compressed sterile film 3 is prone to deflection under stress, and the compressed sterile film 3 is prone to mistakenly collide with the handle 6 in the assembling process of the surgical working head and the handle 6, so that the risk that the surgical working head is polluted by the handle 6 is increased.

In view of the above problems, the present embodiment further provides a method for using the clip applier, including the following steps:

s1, sleeving the sleeve assembly on the operation working head by the sterile personnel, wherein the sleeve assembly is positioned at the far side of the compressed sterile film 3.

Wherein, the distal part of compressing sterile film 3 on the operation work head can be lived in the complete parcel of sleeve subassembly, also can partly wrap the distal part of compressing sterile film 3 on the operation work head.

S2, the sterile person expands the compressed sterile film 3 distally and fits over the outer surface of the sleeve assembly.

Therefore, on one hand, the section of the sleeve component in the vertical direction is larger than that of the operation working head in the vertical direction, and after the expanded compressed sterile film 3 is sleeved on the outer surface of the sleeve component, bacteria on the handle 6 can be prevented from moving to the operation working head in the assembling process; on the other hand, the length of the sleeve component in the far and near directions is utilized, the expanded compressed sterile film 3 is sleeved on the outer surface of the sleeve component, the bacterium sticking surface of the compressed sterile film 3 faces outwards, the bacterium back surface of the compressed sterile film 3 is tightly attached to the outer surface of the sleeve component, and the operation working head is further protected from being polluted by external bacteria. Wherein, the face of laminating of compressed aseptic membrane 3 is that compressed aseptic membrane 3 wraps up the one side of hugging closely handle 6 after 6 handles, and is relative, and the another side of compressed aseptic membrane 3 is the back fungus face of compressed aseptic membrane 3.

S3, the aseptic personnel installs the operation working head on the handle 6, then the aseptic personnel slides the unfolded compressed aseptic film 3 far to completely cover the handle 6, and seals the compressed aseptic film 3.

Therefore, the accidental collision between the compressed sterile film 3 and the handle 6 in the assembling process of the operation working head and the handle 6 is avoided. It should be noted that the cartridge assembly of this embodiment must be sterile.

Specifically, in S3, the sealing of the compressed aseptic film 3 includes: the aseptic person tightens the tie and ties off the compression sterile film 3 to seal.

There are situations where the adapter and handle 6 are removably connected, and both the adapter and handle 6 are sterile. Therefore, the method for using the clip applier provided in this embodiment further includes:

s0, the sterile person holds the handle 6 and the adaptor, and the sterile person mounts the adaptor on the handle 6.

There are cases where the handle 6 houses a battery therein, and the battery is detachably mounted in the handle 6. Therefore, S0 further includes: the sterile person holds the handle 6 and the battery and the sterile person installs the battery in the handle 6.

To this end, the present embodiment also provides a sleeve assembly for use in the above method of using the clip applier, as shown in FIGS. 10-12. The sleeve component comprises a support sleeve 7, one or more telescopic structures are arranged on the outer wall of the support sleeve 7, the fixed end of each telescopic structure is connected with the outer wall of the support sleeve 7, the telescopic end of each telescopic structure can radially extend and retract along the support sleeve 7, and the telescopic end can be fixed after extending to a preset position; the end of the telescopic structure is an arc-shaped plate 81, the arc-shaped plate 81 is concave towards the direction far away from the support sleeve 7, and the one or more arc-shaped plates 81 are arranged around the support sleeve 7.

The sleeve component arranged in this way can be used in cooperation with the clip applier, and when the clip applier is used, the operation working head is inserted into the supporting sleeve 7, so that the section area of the sleeve component in the vertical direction can be adjusted, and the clip applier is convenient to use.

Preferably, a plurality of telescopic structures are uniformly arranged along the circumference of the support sleeve 7. In the present embodiment, as shown in fig. 10 and 11, 3 telescopic structures are uniformly arranged along the circumferential direction of the support sleeve 7, and accordingly, the number of the arc-shaped plates 81 is also 3.

Preferably, as shown in fig. 12, the telescopic structure comprises a screw 82, a sliding joint 83 and a tubular fixing joint 84, a first end of the fixing joint 84 is fixedly connected with the outer wall of the support sleeve 7 as a fixed end of the telescopic structure, a first end of the sliding joint 83 is inserted into the fixing joint 84 and is slidably connected with the fixing joint 84, and a second end of the sliding joint 83 extends out of the fixing joint 84 as a telescopic end of the telescopic structure; the fixed joint 84 is provided with a limiting hole 85 along the radial direction of the support sleeve 7, the screw 82 penetrates through the limiting hole 85 and is screwed on the sliding joint 83, and the limiting hole 85 blocks a nut 86 of the screw 82 from passing through.

In this way, when the screw 82 is screwed to the sliding joint 83 through the restriction hole 85, the sliding joint 83 can slide along the fixed joint 84 in the radial direction of the support sleeve 7 to adjust the vertical cross-sectional area of the sleeve assembly when the screw 82 is not screwed; after the sliding joint 83 is adjusted to a predetermined position, the screw 82 is tightened to clamp the pipe wall of the fixed joint 84 by the nut 86 and the sliding joint 83, and the sliding resistance between the sliding joint 83 and the fixed joint 84 increases, so that the sliding joint 83 is difficult to slide relative to the fixed joint 84.

Further preferably, the nut 86 of the screw 82 is a hex nut. Thus, the user can conveniently screw down.

Further preferably, a washer 87 is placed between the nut 86 and the wall of the fixed joint 84. So as to increase the friction force and prevent the skid by increasing the roughness of the contact surface.

It is further preferable that a distance scale 88 is engraved on the outer tube wall of the fixed link 84, the distance scale 88 is positioned at one side of the restriction hole 85, and the distance scale 88 is arranged along the length direction of the restriction hole 85.

Further preferably, the limiting hole 85 is directed in the axial direction of the support sleeve 7.

Further, the end of the first end of the fixed joint 84 is a threaded column 89, the outer wall of the support sleeve 7 is provided with a threaded mounting seat 71, and the threaded column 89 is in threaded connection with the threaded mounting seat 71. The telescopic structure is thus detachable from the support sleeve 7.

Example 2

The present embodiment is mainly different from embodiment 1 in that:

in order to realize the sealing connection between the sterile film and the tube body 1, in this embodiment, the cartridge assembly further includes an elastic band, and the elastic band is connected to the connecting end 321 of the laminated film along the circumferential direction of the laminated film. The connecting end 321 of the laminated film 3 is sleeved on the tube body 1, the elastic belt stores force, the connecting end 321 of the laminated film 3 expands outwards, the inner surface of the connecting end 321 of the laminated film 3 is in close contact with the outer surface of the tube body 1, and sealing connection is formed between the laminated film 3 and the tube body 1. Wherein the stored force is a deformation force generated by stretching. So set up, simple structure, the elastic webbing holds power, for the removal of the link 321 of fold membrane 3 on body 1 provides the resistance, does benefit to fold membrane 3 and expands to 6 directions of handle, can guarantee simultaneously that fold membrane 3 forms sealedly under the state of not expanding and between body 1, further can guarantee that fold membrane 3 begins to expand to the expansion end from expanding, seals all the time between the most distal end of fold membrane 3 and body 1.

Preferably, the laminated film 3 is an inelastic film, the connecting end 321 of the laminated film 3 is formed with a compression belt folded along the circumferential direction of the laminated film 3, the elastic belt covers the compression belt along the circumferential direction of the laminated film 3 outside the connecting end 321 of the laminated film 3, and the elastic belt is connected with the compression belt; the connecting end 321 of the laminated film 3 is sleeved on the pipe body, and the elastic belt stores force and drives the compression belt to extend. Further preferably, the elastic band is an endless elastic band and the compression band is an endless compression band. Alternatively, the elastic band is an arc-shaped elastic band and the compression band is an arc-shaped compression band, and a similar effect can be achieved.

Preferably, the sterile film installation position 111 is an annular groove, and the connecting end 321 of the laminated film 3 is sleeved at the bottommost part of the annular groove. With this arrangement, even if the movement of the connection end 321 of the laminated film 3 on the tube body 1 is caused during the expansion of the laminated film 3, the sealing between the laminated film 3 and the tube body 1 is not affected.

The rest of the process is the same as that of embodiment 1 and is not repeated.

Example 3

The main differences between this embodiment and embodiment 2 are:

as shown in fig. 13 and 14, the connection end 321 of the laminated film 3 is no longer formed with a compression band folded along the circumferential direction of the laminated film 3, the laminated film 3 is an elastic film, the elastic band is connected to the connection end 321 of the laminated film 3 along the circumferential direction of the laminated film 3 outside the connection end 321 of the laminated film 3, the connection end 321 of the laminated film 3 is sleeved on the tube body 1, the elastic band and the connection end 321 of the laminated film 3 accumulate force and expand outward, the inner surface of the connection end 321 of the laminated film 3 is in close contact with the outer surface of the tube body 1, and a seal is formed between the laminated film 3 and the tube body 1. Wherein the stored force is a deformation force generated by stretching.

Preferably, the elastic band is a ring-like elastic band 324.

The rest of the process is the same as that of embodiment 2 and is not repeated.

Example 4

The main differences between this embodiment and embodiment 3 are:

in order to realize the sealing connection between the sterile film and the tube body 1, in this embodiment, the cartridge clamping assembly further includes an annular elastic band 324, the annular elastic band 324 is connected to the connecting end 321 of the laminated film 3 along the circumferential direction of the laminated film 3 inside the connecting end 321 of the laminated film 3, the connecting end 321 of the laminated film 3 is sleeved on the tube body 1, the elastic band and the connecting end 321 of the laminated film 3 accumulate force and expand outward, the inner surface of the annular elastic band is in close contact with the outer surface of the tube body 1, and the sealing connection is formed between the laminated film 3 and the tube body 1. Wherein the stored force is a deformation force generated by stretching.

The rest of the process is the same as that of embodiment 3 and is not repeated.

Example 5

The main differences between this embodiment and the above embodiments are:

in this embodiment, the cartridge assembly and the adapter 21 are used as the surgical working head. A sterile membrane is provided over the adaptor 21, the sterile membrane being located distally of the handle 6. Specifically, the structure of the sterile film is the same as that of the above-mentioned embodiment, and the connection between the sterile film and the adaptor 21 is similar to that of the sterile film and the tube body 1 in the above-mentioned embodiment, and is not described again here.

The adapter that so sets up when using, expandes sterile film to covering handle 6 completely, then seals, can make sterile film seal handle 6 completely, has obstructed 6 bacterial infections of handle, need not to realize the reuse to handle 6 sterilization, reduces and executes the clamp use cost to reduce the operation cost. It can be seen that in the clip applier provided in this embodiment, the clip cartridge assembly must be sterile, and the handle 6 may be either sterile or aseptic; when handle 6 is sterile, the present embodiment provides an adapter and clip applier that enables reuse of handle 6.

The structure of the sterile film is the same as the above embodiments, and the connection between the sterile film and the tube body 1 is similar to the above embodiments, and is not described again.

Example 6

The main differences between this embodiment and the above embodiments are:

there is a surgical instrument as shown in fig. 15 and 16 which is a linear stapler including a cartridge assembly for stapling and cutting tissue as a surgical working head, an adapter and a handle 6. The cartridge assembly comprises a tubular body 1 detachably connected to an adapter 21. Wherein, the transmission structure is accommodated in the pipe body 1. Wherein, adapter 21 is including inserting passageway 211 and the power source structure that is located the near-end, and the near-end detachably of body 1 inserts and establishes in inserting passageway 211, and the power source structure is connected with transmission structure, for transmission structure provides power, realizes the cutting of nail storehouse subassembly and sews up the tissue. The adapter 21 is detachably attached to the handle 6, and in fig. 15, the handle 6 extends in the up-down direction, and the adapter 21 is detachably attached to the upper portion of the handle 6. In the present embodiment, the staple cartridge assembly is used as the surgical working head.

To the linear anastomat that above-mentioned nail storehouse subassembly and handle 6 can dismantle the connection, this embodiment provides a nail storehouse subassembly, and this nail storehouse subassembly includes aseptic membrane, and aseptic membrane cover is established on nail storehouse subassembly's body 1. Specifically, the structure of the sterile film is the same as that of the above embodiment, and the connection between the sterile film and the tube body 1 is similar to that of the above embodiment, and is not described again. Therefore, in the linear anastomat provided by the embodiment, the nail bin assembly is definitely sterile, and the handle can be sterile or aseptic; when the handle 6 is sterile, the cartridge module and the linear stapler provided by the embodiment realize the recycling of the handle 6. Therefore, the embodiment realizes the reutilization of the handle of the linear anastomat, and reduces the use cost of the linear anastomat, thereby reducing the operation cost. Moreover, the present embodiment is to recycle part of the linear stapler, but not the whole linear stapler, that is, the present embodiment provides a new idea of reusing the linear stapler.

Example 7

The present embodiment is mainly different from embodiment 6 in that:

in this embodiment, the magazine assembly and the adaptor 21 are used as the surgical working head. A sterile membrane is provided over the adaptor 21, the sterile membrane being located distally of the handle 6. Specifically, the structure of the sterile film is the same as that of the above-mentioned embodiment, and the connection of the sterile film to the adapter 21 is similar to that of embodiment 7, and is not described again.

Therefore, in the linear anastomat provided by the embodiment, the nail bin assembly is definitely sterile, and the handle 6 can be sterile or aseptic; when the handle 6 is sterile, the adapter and the linear anastomat provided by the embodiment realize the recycling of the handle 6.

It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the above specific embodiments. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.

Claims (10)

1. A sterile film for encapsulating a handle of a medical device,

comprising a stack of membranes (3), said stack of membranes (3) being switchable from a compressed state to an expanded state, said stack of membranes (3) being formed by a tubular sterile membrane folded in its axial direction into said compressed state;

the laminated film (3) is in an unfolded state, and a cavity for accommodating the handle is formed inside the laminated film (3).

2. The sterile film of claim 1,

an adhesive layer is coated on the connecting end (322) of the laminated film (3) which is used for being connected with the operation working head of the medical instrument and surrounds the circumference of the laminated film (3).

3. The sterile film of claim 1,

the laminated film (3) is provided with a connecting end (322) used for being connected with a surgical working head of the medical apparatus and a unfolding end far away from the connecting end in the unfolding state;

the opening diameter of the connecting end is smaller than that of the unfolding end.

4. The sterile film of claim 1,

the laminated film (3) is provided with a connecting end (322) used for being connected with a surgical working head of the medical apparatus and a unfolding end far away from the connecting end in the unfolding state;

the opening of the unfolding end is an oblique opening.

5. The sterile film of claim 1,

the laminated film (3) is provided with a connecting end (322) used for being connected with a surgical working head of the medical apparatus and a unfolding end far away from the connecting end in the unfolding state;

also comprises a binding rope (5);

at the unfolding end, a stringing channel is arranged around the circumference of the laminated film (3), and the stringing channel is positioned at the outer side of the cylindrical sterile film;

the binding rope (5) penetrates through the rope penetrating channel, and both a first end of the binding rope (5) and a second end of the binding rope (5) are exposed out of the rope penetrating channel.

6. The sterile film of claim 1,

also includes an elastic belt;

the laminated film (3) is provided with a connecting end (322) used for being connected with a surgical working head of the medical apparatus and a unfolding end far away from the connecting end in the unfolding state;

the laminated film (3) is an inelastic film, a compression belt which is folded along the circumferential direction of the laminated film (3) is formed at the connecting end (322), the elastic belt covers the compression belt along the circumferential direction of the laminated film (3) outside the connecting end (322), and the elastic belt is connected with the compression belt.

7. The sterile film of claim 1,

also includes an elastic belt;

the laminated film (3) is provided with a connecting end (322) used for being connected with a surgical working head of the medical apparatus and a unfolding end far away from the connecting end in the unfolding state;

the laminated film (3) is an elastic film, and the elastic belt is connected to the connecting end (322) along the circumferential direction of the laminated film (3) outside the connecting end (322).

8. The sterile film of claim 1,

further comprising a ring-like elastic band (324);

the laminated film (3) is provided with a connecting end (322) used for being connected with a surgical working head of the medical apparatus and a unfolding end far away from the connecting end in the unfolding state;

the ring-shaped elastic belt (324) is connected to the connecting end (322) along the circumferential direction of the laminated film (3) inside the connecting end (322).

9. The sterile film of any one of claims 1 to 8,

the laminated film (3) is a transparent film.

10. A surgical working head characterized in that a sterile membrane according to any of claims 1 to 9 is attached.

Images