Exhibit (a)(1)(D)

Notice of Guaranteed Delivery

for

Tender of Shares

of Common Stock

of

LIFECELL CORPORATION

at

$51.00 Net Per Share

by

Leopard Acquisition Sub, Inc.

a wholly-owned subsidiary of

Kinetic Concepts, Inc.

Do not use for signature guarantees

THE OFFER WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, MAY 16, 2008, UNLESS THE OFFER IS EXTENDED.

This form of notice of guaranteed delivery, or a form substantially equivalent to this form, must be used to accept the offer of Leopard Acquisition Sub, Inc., a Delaware corporation (“Purchaser”) and a wholly-owned subsidiary of Kinetic Concepts, Inc., a Texas corporation (“KCI”), to purchase all outstanding shares of common stock, par value $0.001 per share (“Shares”), of LifeCell Corporation, a Delaware corporation (“LifeCell”), at a price of $51.00 per Share, net to the seller in cash, without interest thereon and subject to reduction for any applicable withholding taxes, as described in the Offer to Purchase dated April 21, 2008 and the related Letter of Transmittal (which, together with the Offer to Purchase, as each may be amended or supplemented from time to time, collectively constitute the “Offer”), if certificates for Shares and all other required documents cannot be delivered to Computershare Trust Company, N.A. (the “Depositary”) on or prior to the Expiration Date (as defined below), if the procedure for delivery by book-entry transfer cannot be completed prior to the Expiration Date, or if time will not permit all required documents to reach the Depositary prior to the Expiration Date.

The term “Expiration Date” has the meaning set forth in Section 1 of the Offer to Purchase. Such form may be delivered by hand or transmitted via facsimile or mailed to the Depositary and must include a guarantee by an Eligible Institution (as defined below). See Section 3 of the Offer to Purchase.

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The Depositary for the Offer is:

By Mail:   Computershare c/o Voluntary Corporate Actions P.O. Box 43011 Providence, RI 02940-3011 By Overnight Courier:   Computershare c/o Voluntary Corporate Actions 250 Royall Street Canton, MA 02021

By Facsimile Transmission:

(for Eligible Institutions only)

(617) 360-6810

Confirm Facsimile Transmission

By Telephone Only

(781) 575-2332

DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS SET FORTH

ABOVE, OR TRANSMISSION OF INSTRUCTIONS VIA FACSIMILE TO A NUMBER OTHER THAN AS

SET FORTH ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.

This Notice of Guaranteed Delivery is not to be used to guarantee signatures. If a signature on a Letter of Transmittal is required to be guaranteed by an Eligible Institution under the instructions thereto, such signature guarantee must appear in the applicable space provided in the signature box on the Letter of Transmittal.

The guarantee on the back cover page must be completed.

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Ladies and Gentlemen:

The undersigned hereby tenders to Leopard Acquisition Sub, Inc., a Delaware corporation (“Purchaser”) and a wholly-owned subsidiary of Kinetic Concepts, Inc., a Texas corporation (“KCI”), upon the terms and subject to the conditions set forth in the Offer to Purchase, dated April 21, 2008 (the “Offer to Purchase”), and the related Letter of Transmittal (which, as amended or supplemented from time to time, together constitute the “Offer”), receipt of which is hereby acknowledged, the number of Shares indicated below pursuant to the guaranteed delivery procedure set forth in Section 3 of the Offer to Purchase.

Number of Shares Tendered:	Name(s) of Record Owner(s):
Share Certificate Numbers (if available):
	(Please Type or Print)
¨ Check here and complete the information below if Shares will be tendered by book entry transfer.	Address(es):
Name of Tendering Institution:
	(Including Zip Code)
DTC Participant Number:	Area Code and Telephone Number:
Transaction Code Number:
Date:                                     , 2008	Signature(s):

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GUARANTEE

(Not to be used for signature guarantee)

The undersigned, a member in good standing of a recognized Medallion Program approved by the Securities Transfer Association Incorporated, including the Security Transfer Agents Medallion Program, the New York Stock Exchange Medallion Signature Program and the Stock Exchanges Medallion Program (each, an “Eligible Institution”), hereby guarantees that either the certificates representing the Shares tendered hereby, in proper form for transfer, or timely confirmation of a book-entry transfer of such Shares into the Depositary’s account at The Depository Trust Company (pursuant to the procedures set forth in Section 3 of the Offer to Purchase), together with a properly completed and duly executed Letter of Transmittal (or facsimile thereof) with any required signature guarantees (or, in the case of a book-entry transfer, an Agent’s Message (as defined in the Offer to Purchase)) and any other documents required by the Letter of Transmittal, will be received by the Depositary at one of its addresses set forth above within three (3) NASDAQ Global Market trading days after the date of execution hereof.

The Eligible Institution that completes this form must communicate the guarantee to the Depositary and must deliver the Letter of Transmittal, Share Certificates and/or any other required documents to the Depositary within the time period shown above. Failure to do so could result in a financial loss to such Eligible Institution.

Name of Firm:                                                                                                                                                                                              

Address:                                                                                                                                                                                                          

(Including Zip Code)

Area Code and

Telephone Number:                                                                                                                                                                                     

Authorized Signature:                                                                                                                                                                                 

Name:                                                                                                                                                                                                              

(Please Type or Print)

Title:                                                                                                                                                                                                                 

Dated:                                                                                                                                                                                                    , 2008

NOTE: DO NOT SEND SHARE CERTIFICATES WITH THIS NOTICE OF GUARANTEED DELIVERY. SHARE CERTIFICATES ARE TO BE DELIVERED WITH THE LETTER OF TRANSMITTAL.

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